Improvement works Product List and Ranking from 41 Manufacturers, Suppliers and Companies | IPROS

Last Updated: Aggregation Period:Jan 14, 2026~Feb 10, 2026
This ranking is based on the number of page views on our site.

Improvement works Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Jan 14, 2026~Feb 10, 2026
This ranking is based on the number of page views on our site.

  1. Taiyo Kisokogyo Co.,Ltd. Aichi//General contractors and subcontractors
  2. HOKOKU ENGINEERING CO.,LTD. Osaka//Other construction industries
  3. 山下工業 Kyoto//Other construction industries
  4. 4 熊野組 Hiroshima//Other construction industries
  5. 5 テノックス九州 Fukuoka//Construction Consultant

Improvement works Product ranking

Last Updated: Aggregation Period:Jan 14, 2026~Feb 10, 2026
This ranking is based on the number of page views on our site.

  1. TRD method Taiyo Kisokogyo Co.,Ltd.
  2. HiroWork Kmighty Method Taiyo Kisokogyo Co.,Ltd.
  3. Bauer method Taiyo Kisokogyo Co.,Ltd.
  4. 4 Groundwater Level Measurement Method (Chikachan) HOKOKU ENGINEERING CO.,LTD.
  5. 5 Dawn Construction Method HOKOKU ENGINEERING CO.,LTD.

Improvement works Product List

31~60 item / All 97 items

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Shinbee method

Ground improvement method using soil-cement columns with thin-walled steel pipes.

■ Performance-Proven Construction Method Building Technology Performance Certification GBRC Performance Certification No. 13-04 Rev. 2 This method has been reviewed by a third-party organization, which certifies the performance of the technology. ■ High Load-Bearing Capacity and High Strength This method combines the benefits of steel pipes with stable quality and strength of columnar improvement bodies. ■ High-Quality Mixing The specialized mixer, equipped with a comb section and eight blades, provides high-quality mixing. ■ Wide Range of Soil Types This method can accommodate a wider range of soil types than typical columnar improvement methods, as the steel pipes can complement quality and strength to mitigate variations in strength due to soil type. ■ Short Construction Period Due to high surface friction and quality, it is possible to shorten the pile length compared to conventional columnar improvement methods, leading to a reduction in construction time. ■ Suitable for Narrow Sites Heavy machinery is selected based on site conditions to advance the project more efficiently.

  • Pile and foundation work
  • Ground foundation construction method
  • Ground improvement
  • Improvement works

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For deep excavation work and cutting/removal of underground obstacles! Super Top Method.

The construction of place-driven piles in ground with boulders or bedrock, as well as deep excavation work, demonstrates its effectiveness in cutting and removing underground obstacles.

To safely carry out difficult all-casing deep drilling, maintaining high vertical accuracy while pushing in the casing and the reliability of the chuck device are key points. The RT series tubing equipment used in the Super Top method features a wedge-type chuck device and boasts one of the largest rotational torque and pull-out force in its class. Additionally, aiming for efficient and economical rock cutting, it is equipped with a casing pushing automatic control mechanism (B-CON mechanism) that can maintain the bit load at a constant value through "sequence control." The excellent workability and safety of the Super Top method with these features have been demonstrated through "technical review certification."

  • Foundation construction
  • Improvement works

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Construction Case Study Catalog: "Breakwater Improvement and Reinforcement Work"

From planning materials to construction! Introducing the breakwater improvement and reinforcement work carried out at Hakata Port.

This catalog introduces the "Breakwater Improvement and Reinforcement Work" conducted by Marine Works Co., Ltd., which mainly engages in construction and operations in the field of marine work. Our company utilizes years of experience and achievements to implement underwater construction related to the planning of construction methods and materials in port construction, as well as the new construction, repair, and improvement of various structures. [Contents] ■ Construction Details ■ Construction Procedures ■ Process Management ■ Shape Management ■ Quality Control ■ List of Underwater Construction Techniques *For more details, please refer to the PDF document or feel free to contact us.

  • Work boats, research vessels, underwater work machines
  • others
  • Improvement works

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[Metal Road Construction Method Case Study] Nara Prefecture Road Improvement Project

Ensuring safe and smooth passage! Case study of road improvement work on National Route 425, Jūzato to Sakon Nishikawa section (II-2 section).

National Route 425 in Nara Prefecture is a road that facilitates regional exchange, connecting the city of Gobō in Wakayama Prefecture and the village of Totsukawa in Yoshino District, Nara Prefecture. However, there are continuous sections with narrow widths and poor alignment, making it difficult for vehicles to pass each other in many areas. Therefore, construction was carried out with the aim of eliminating narrow width sections, ensuring safe and smooth passage, and contributing to tourism promotion. The site is located within the area of the World Heritage Kumano Kodo, and due to the need for consideration of the landscape and the preservation of water channels, the metal road construction method was adopted. 【Case Overview】 ■ Client: Nara Prefecture, Gojō Civil Engineering Office ■ Construction Period: January 5, 2022 – June 30, 2022 ■ Total Length: 19.0m ■ Width: 6.95m *For more details, please refer to the PDF document or feel free to contact us.

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  • Special Construction Method
  • Improvement works

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[Metal Road Construction Method Case Study] Yamanashi Prefecture Road Improvement Project

Design and construction that avoids interference with existing structures is possible! Here is a case study on the main local road Fujikawa-Minobu Line.

Here is an example from the emergency road maintenance and reconstruction project ordered by Yamanashi Prefecture. The Fujikawa Minobu Line (Prefectural Road No. 10) is an important route designated as a second emergency transport road. The site had a thick alluvial fan layer, and existing structures (stone walls and drainage) were in close proximity, creating a challenging environment. As a result, the design and construction that could avoid interference with existing structures while ensuring traffic on the existing road was evaluated positively, leading to the adoption of the metal road construction method. 【Case Overview】 ■ Client: Yamanashi Prefecture, Kōnan Construction Office (Minobu Branch) ■ Construction Period: March 24, 2021 – August 31, 2022 ■ Total Length: 42.5m ■ Width: 7.0m (8.2m) *For more details, please refer to the PDF document or feel free to contact us.

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  • Special Construction Method
  • Improvement works

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[Construction Example] Metal Road Method

Images included! Introducing examples from dam construction work and road improvement projects.

This document introduces various examples of the "Metal Road Construction Method." It includes the construction work for the main body of the Komagome Dam in Aomori Prefecture, as well as the road improvement work for the Koiwai Motokoiwai Line in Saitama Prefecture. Images are also included, so please download and view them from the related catalog below. [Contents] ■ Aomori Prefecture: Komagome Dam Main Body Construction Work ■ Saitama Prefecture: Koiwai Motokoiwai Line Road Improvement Work ■ Yamanashi Prefecture: General Prefectural Road Takashita Kashizawa Line Road Improvement Work ■ Shizuoka Prefecture: (National) Route 136 Disaster Prevention and Safety Grant (National Road Reconstruction) Work ■ Wakayama Prefecture: National Route 480 Koyasan ■ Kumamoto Prefecture: National Route 445 (Kuzurese Work Section) Vitality Infrastructure Grant (Road Improvement) Work *For more details, please refer to the PDF document or feel free to contact us.

  • Special Construction Method
  • Improvement works

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Chemical Grout Co., Ltd. Business Introduction

Geo-doctor who dialogues with the earth!

Chemical Grout Co., Ltd. is a comprehensive underground engineering company that utilizes a diverse range of over 30 construction methods to carry out total services from technology development, design, proposals, construction, to after-sales support related to underground work. To meet various needs, we are engaged in research and development of unique technologies, such as the development of the jet grouting method, which enables the creation of modified bodies of various sizes from smaller machines. We will continue to provide safe and secure construction along with high-quality technology, so please feel free to contact us when you need our services. 【Main Business Activities】 ■ Investigation, design, construction, and consulting for the following works: - Ground improvement and stabilization work - Foundation construction - Durability enhancement work for structures - Soil purification work, etc. *For more details, please refer to our catalog or feel free to contact us.

  • Earthquake-resistant construction method
  • Ground improvement
  • Ground foundation construction method
  • Improvement works

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Nichibo Co., Ltd. Business Introduction

We will do our utmost to meet the needs of society in order to build a safe social infrastructure!

Nichibo Co., Ltd. is a company engaged in ground improvement, slope business, urban civil engineering, and geological surveys and design. Based on the location conditions and natural environment required for each construction, we provide optimal ground improvement technologies and various slope countermeasure techniques that also consider the natural environment, responding to societal needs. Additionally, at our equipment center, we realize the efficiency of material and equipment logistics quickly and accurately, providing solid support. 【Business Activities】 ■ Ground Improvement ■ Slope Business ■ Urban Civil Engineering ■ Geological Surveys and Design *For more details, please download the PDF or feel free to contact us.

  • Ground improvement
  • Renovation and repair methods
  • Geological Survey
  • Improvement works

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Ground Improvement Work "Stabilizer Mixer Method"

A ground improvement construction method that enables the construction of highly uniform improved ground!

The "Stabilization Mixer Method" is a construction technique that improves soft ground by mixing it with cement-based solidifying agents using a stabilization mixer, creating a uniform and highly accurate improved body. Due to high-speed stirring driven by a hydraulic motor, the workability is excellent, and cost reduction is possible as there is no need for equipment costs such as plants. Additionally, because powdered solidifying agents are used, the strength is greater than that of slurries with the same mixing ratio. 【Features】 ■ Construction is possible at depths of approximately 1m to 7m ■ Efficient construction is achievable ■ Low-cost ground improvement is possible ■ There is less variation in strength, allowing for the construction of high-quality improved bodies ■ Construction is possible with a variety of soil properties *For more details, please download the PDF or feel free to contact us.

  • Ground foundation construction method
  • Renovation and repair methods
  • Improvement works

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Information on PJG Method and PJG-L Method

Registered with NETIS! This construction method reduces sludge volume and excels in environmental conservation.

The "PJG Method / PJG-L Method" is a construction technique that enables rapid construction while reducing the amount of hardening material and the volume of sludge generated. Even when the injection nozzle is underground, its direction can be confirmed, allowing for adjustments to the improvement angle of the construction area so that only the necessary parts can be modified. Additionally, it has excellent adhesion and can be constructed with compact equipment and machinery even in narrow spaces. 【Features】 ■ Mutual adhesion and compact equipment ■ Shortened construction period ■ Economic efficiency and reduction of resource waste ■ High reliability and easy construction management ■ Protection of shield and thrust pipe routes *For more details, please download the PDF or feel free to contact us.

  • Ground improvement
  • Ground foundation construction method
  • Improvement works

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[Reference] Guide for Selecting Ground Improvement Methods

For those struggling with ground improvement methods! We introduce the features and construction procedures of multiple methods! A visual comparison table with other methods is also included for easy understanding!

This document presents ground improvement methods conducted by Nikken Consulting. It introduces methods such as the "MS Method," which reduces the amount of excavated soil compared to conventional surface improvement through grid-like surface ground improvement work, and the "Pure Pile Method," which constructs columnar bodies using only cement milk without mixing soil, illustrated with diagrams and photographs. It also explains the features and construction procedures. Please make use of it. [Contents] ■ MS Method ■ Tiger Pile Method ■ Pure Pile Method ■ Wet Columnar Ground Improvement Work ■ Steel Pipe Pile Work ■ Surface Ground Improvement Work *For more details, please refer to the PDF document or feel free to contact us.

  • Ground improvement
  • Ground foundation construction method
  • Improvement works

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Cobra method

Full soil type compatibility from ordinary soil to bedrock! Economical due to starting from small piles.

This technology is a small-diameter pipe jacking method that allows for construction on a wide range of ground conditions, from ordinary soil to gravel, cobblestones, and bedrock, thanks to its high torque performance lead conductor. It easily crushes cobblestones and bedrock. A single mud-water process makes it very fast. Additionally, the equipment is compact, taking up little space. All components related to the work, including a mud-water treatment device that can be mounted on a vehicle and a divisible main body, are designed to be small and space-saving. 【Features】 ■ Compatible with all soil types from ordinary soil to bedrock ■ Economical due to starting from small piles ■ Achieves speedy jacking with a single process ■ Wide adaptability to soil types ■ Realizes miniaturization of shafts *For more details, please refer to the PDF document or feel free to contact us.

  • Ground foundation construction method
  • Improvement works

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We propose a suitable construction method for the ground where the sinking accident occurred through rigorous checks.

Smartly solve your ground issues with Third Check Eye's subsidence correction consulting!

"Settlement Correction Consulting" is a service that conducts thorough checks by experienced staff in settlement correction work and third-party reviewers, proposing suitable methods for the ground where settlement accidents have occurred. Our experts will comprehensively solve the concerns of house manufacturers, builders, construction companies, and ground contractors regarding ground correction work. [Features] ■ Conduct investigation of the ground where settlement accidents have occurred ■ Propose suitable settlement correction work and methods ■ Introduce reliable settlement correction contractors capable of implementing the specified methods ■ Review estimates and confirm design details and amounts *For more details, please refer to the PDF document or feel free to contact us.

  • Ground improvement
  • Renovation and repair methods
  • Consulting companies
  • Improvement works

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[Construction Example] Cast-in-Place Pile Construction Using Full Circle Rotating All-Casing Method

Efficient and smooth construction with unique ingenuity! A case study of site foundation pile construction conducted in Machida City.

We would like to introduce a case study of the ground improvement work we conducted. We performed the construction of foundation piles for a public works project in Machida City using the full rotary all-casing method. We strive for efficient and smooth construction by implementing unique ideas tailored to the site conditions. 【Case Overview】 ■Project Name: Site-cast pile construction using the full rotary all-casing method in Machida City ■Construction Date: July 24, 2020 ■Location: Machida City, Tokyo *For more details, please refer to the PDF document or feel free to contact us.

  • Ground foundation construction method
  • Improvement works

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Antibacterial Drainage Pipe Rehabilitation Method "Cyclone Super Coat Method" ◎ Certified Examination Method

A new proposal for drain pipe maintenance that prevents the growth of bacteria in the drainage pipes through antibacterial processing, helping to avoid issues such as clogs and odors! Installation in as little as one day.

The "Cyclone Super Coat Method" is a construction method that adds an "antibacterial" function to drainage pipe rehabilitation work. (Building Preservation Center, Certification of Preservation Technology for Buildings, Certification No. 1101-A-1) With speedy polishing and an antibacterial lining material that is resistant to dirt, this method achieves the long lifespan of damaged drainage pipes in apartments and buildings, as well as a reduction in maintenance costs. 【Features】 ■ "Cyclone," an evolved suction rehabilitation method for drainage pipes ■ A longevity strategy by lining the inner surface with a special coating while utilizing existing piping ■ Development of a dedicated nozzle for high-pressure polishing that further enhances conventional polishing precision ■ Use of inorganic antibacterial paint, making it difficult for dirt to adhere after painting and ensuring smooth water flow ■ Integrated construction of shared vertical pipes and branch pipes, generally resulting in a short construction period of one system per day ■ There is a possibility of constructing piping that cannot be implemented with other methods *For more details, please download the PDF or feel free to contact us. TEL: 047-421-1077 Contact: https://taikoh-e.com/contact-3/

  • Water supply facilities
  • Special Construction Method
  • Improvement works

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[Information] Who is responsible for liquefaction?

We are publishing information on the occurrence sites of liquefaction, as well as the recurrence of liquefaction and liquefaction countermeasure construction!

This document introduces the responsibility for liquefaction. It includes the history of liquefaction, the mechanisms of liquefaction, predictions of liquefaction, and liquefaction countermeasure plans. The Great East Japan Earthquake that occurred on March 11, 2011, caused significant liquefaction damage in the metropolitan area, far from the epicenter. The issue of liquefaction became prominent precisely because it occurred in the metropolitan area. For more details, please refer to the document. [Contents (partial)] ■ History of liquefaction ■ Mechanisms of liquefaction ■ Locations of liquefaction ■ Recurrence of liquefaction ■ Liquefaction damage *For more information, please refer to the PDF document or feel free to contact us.

  • others
  • Improvement works

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Construction Case: Injection Work

Injecting a solidifying agent into the voids of sandy soil! Introducing a method to improve the stability of the ground.

"Injection grouting" is a method of improving sandy soil by injecting a solidifying agent (chemical solution) into the voids of the soil to stabilize it. First, a survey is conducted to check for any obstacles, and the construction site is marked. A boring machine is set up, and while supplying drilling fluid (Chemical A and B), the drilling rod is used to inject the solution under pressure, drilling to the specified depth. In the first stage, a fast-setting type of chemical is used to fill large voids in loose sand layers and cohesive soil sections, preventing the injected material from diffusing or leaking from the injection site. In the second stage, a medium-setting to slow-setting type of chemical is used to permeate and inject into the smaller voids of sandy soil that contains a significant amount of medium to well-compacted sand layers and cohesive soil, achieving a solid consolidation of the ground. Once the specified injection amount for one stage is reached, the process moves to the next stage, and after all stages are completed, the chemical solution is replaced with water to fill the injection holes while withdrawing the rod. *For more details, please refer to the related link page or feel free to contact us.*

  • Ground improvement
  • Ground foundation construction method
  • Medicines
  • Improvement works

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[Data] SEP Method

Introducing the state of the trial construction! We have included photos of the excavation conditions after the installation of the columnar reinforcement body.

This document introduces the "SEP Method" that our company is implementing. It includes photographs and explanations of the "excavation conditions after the construction of the columnar reinforcement" and "confirmation of the conditions after the excavation of the columnar reinforcement." Additionally, it provides an overview, applications, and features of the "Simple Eco Soda." We encourage you to read it. [Contents] ■ Excavation conditions after the construction of the columnar reinforcement ■ Confirmation of conditions after the excavation of the columnar reinforcement ■ Simple Eco Soda - Product overview/applications - Product features - Precautions for use *For more details, please refer to the PDF document or feel free to contact us.

  • Ground foundation construction method
  • Improvement works

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Ground warranty

A system for paying construction costs to restore the current state! A 20-year warranty will be provided.

Our company is a registered business for the "Ground Guarantee" warranty system. Properties for which we conduct ground surveys and ground improvement work will come with a 20-year warranty. Please feel free to contact us when you need our services. 【Features】 ■ A system that pays for the construction costs to restore the current condition ■ The warranty period starts from the foundation construction date and lasts for 20 years from the delivery date *For more details, please refer to the PDF materials or feel free to contact us.

  • Ground foundation construction method
  • Improvement works

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[To Ground Improvement Construction Companies] Information on the SEP Method

Securing profits while achieving high-spec foundational ground! Development of pile-type ground reinforcement methods.

We would like to introduce our "SEP Method." By using a screw with a drum attached, we can suppress construction soil discharge. There is less sludge after replacement, which reduces industrial waste disposal costs. Additionally, since there are four patterns of reinforcement body diameters, we can select the size of heavy machinery according to the site, making it possible to accommodate both narrow and large sites. 【Features】 ■ Eliminates waste ■ Not limited by soil type ■ Large pile diameter and wide pile spacing ■ High molding accuracy ■ Shortened construction period *For more details, please refer to the PDF materials or feel free to contact us.

  • Ground foundation construction method
  • Improvement works

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[Construction Example] Laundry Factory: Filling Work for Loose Ground Under Machinery Foundation

Injecting polyurethane under the foundation to eliminate ground looseness! Solved in just one day!

We would like to introduce a case of "filling work for loosening under the machine foundation and urethane filling work inside the pit" conducted at a laundry factory in Kanagawa Prefecture. Due to the loosening of the ground under the machine foundation, the dewatering machine tilted, so we performed filling work to inject urethane under the machine foundation to resolve the ground loosening. Additionally, we carried out work to fill urethane inside the pit where the dewatering machine is installed to prevent further subsidence. After the construction, we conducted a filling confirmation using a CCD camera and confirmed that the urethane was evenly filled under the machine foundation. [Case Overview] ■ Construction Area: 10m² ■ Construction Period: 1 day ■ Area: Kanagawa Prefecture *For more details, please refer to the PDF document or feel free to contact us.

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Overview of the A&S construction method

Low cost, shortened construction period! Apply compressive force to weak ground to increase strength.

The "A&S Method" is a consolidation dewatering method that adds embankment to the ground improvement method "SKK Method," which enhances the groundwater recovery capacity. Since the ground that has been finely cavitated through vacuum vaporization experiences minimal settlement on its own, compressed air is sent to the sand layer surface using a large compressor, generating buoyancy pressure. The step-type Qin-TAKO compresses the cohesive soil directly and uniformly. By reducing the water content ratio through air blowing and subsequently applying vacuum vaporization, compression settlement is achieved through atmospheric pressure and embankment weight. The reduction in water content ratio and compression settlement leads to an increase in ground strength. 【Features】 ■ Low cost ■ Shortened construction period (approximately 3 months) ■ No restrictions on construction speed during embankment *For more details, please refer to the PDF document or feel free to contact us.

  • Special Construction Method
  • Civil Engineering Method
  • Improvement works

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[Construction Case] Ground Support Strengthening Injection Work for a Pool at a Certain Embassy

Introduction of construction examples of pool ground support reinforcement injection work.

The RC pool has a length of 25m and a depth of 2m to 4m, with uneven loading. It is believed to have settled due to water leakage from the circulation piping. Additionally, the ground around the leakage area has loosened, causing the southeast corner to settle locally and deform. The plan was to perform overall support strength enhancement injection to stabilize the entire subsoil of the pool from an uneven state to a stable, uniform state, rather than partial repairs to stop further settlement. As a result, the entire structure was lifted by several millimeters, and at the same time, the deformation and inclination were repaired, allowing it to be restored to its original condition. [Case Overview] ■ Location: Tokyo ■ Building Name: 25m ■ Structure and Scale: 25m pool (H2000 to H4000) ■ Foundation Structure: Slab foundation ■ Total Restoration Weight: Approximately 650t *For more details, please refer to the PDF document or feel free to contact us.

  • Special Construction Method
  • Renovation and repair methods
  • Ground improvement
  • Improvement works

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Multi-slide method

Installation method for products at sites where large vehicles and heavy machinery cannot enter.

【NETIS CB-060014-A】 This is a construction method for installing secondary products such as box culverts, free gradient ditches, and L-shaped retaining walls in mountainous areas and urban areas where large vehicles and heavy machinery cannot enter. It involves installing rails (steel materials) and steel balls, over which products mounted on sleds (steel materials) slide. Manual installation is also possible depending on the weight of the products.

  • Special Construction Method
  • Improvement works

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Uniform thickness soil-cement continuous wall TRD method

Thickened Soil-Cement Continuous Wall TRD Method

The TRD method (Trench cutting & Re-mixing Deep wall method) involves moving a cutter installed underground horizontally to excavate, mixing and stirring the solidifying liquid with in-situ soil in a vertical direction, and creating a wall-like solidified body underground. 【Features】 ○ Outstanding stability ○ Continuous without discrepancies ○ Homogeneous wall quality in depth direction ○ Arbitrary setting of core material spacing is possible ○ Deep construction is possible ○ High-precision construction is possible ○ Construction on slopes is possible ○ Construction with low headroom is possible ○ Cost reduction achieved through shortened construction period ● For more details on other functionalities, please contact us.

  • Steel structure construction
  • Foundation construction
  • Ground foundation construction method
  • Improvement works

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Proposal for improvement technology of embankment materials utilizing construction-generated soil.

Significantly contributes to shortening construction periods and reducing costs! We have a track record of over 3 million m³ of construction nationwide.

We will introduce the "Improvement Technology for Embankment Materials Utilizing Construction Excavated Soil." Our company proposes a manufacturing technology for embankment materials through particle size improvement using construction excavated soil, which significantly contributes to shortening construction periods and reducing costs by employing a stabilizer. Additionally, by equipping the stabilizer with GNSS, operators can confirm the construction position and monitor the mixing situation in real-time. Furthermore, since the construction records are digitized, it leads to a reduction in construction management through the output of reports after completion. 【Construction Cycle】 1. Transporting soil and creating the improvement yard 2. Primary mixing 3. Adjustment (after primary mixing) 4. Secondary mixing 5. Transporting improved soil 6. Reusing construction excavated soil as embankment material *For more details, please refer to the PDF document or feel free to contact us.

  • Other civil engineering works
  • Improvement works

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Superflow Method

Introducing high fluidity filling mortar suitable for filling narrow spaces and long-distance pumping.

The "Super Flow Method" is a high fluidity filling mortar that does not undergo volume change (reduction). The bleeding rate is low, at 1-2%. It also has a small heat of hydration and boasts extremely high fluidity. Please use it for filling narrow spaces and long-distance pumping. 【Features】 ■ Extremely high fluidity ■ No volume change (reduction) ■ Low bleeding rate of 1-2% ■ Small heat of hydration *For more details, please refer to the PDF document or feel free to contact us.

  • Special Construction Method
  • Improvement works

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