アースリレーションズ List of Products and Services

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration with a ground consultant (represented by Blue Sage Co., Ltd.) and Earth Relations. In the 12th session, we provide a clear explanation of "Summary of Residential Ground" through a PowerPoint video. We summarize simple checkpoints to prevent differential settlement accidents. [Key Points] ■1. Topography ■2. Ground investigation data ■3. Ground reinforcement estimates (selection of reinforcement methods) ■4. Ground insurance and guarantees *For more details, please refer to the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration with a ground consultant (representative of Blue Sage Co., Ltd.) and Earth Relations. In the 11th session, we will clearly explain "How to Check Ground Assurance Contents" through a PowerPoint video. We will discuss "About the Checking Method," as well as "Comparing Different Companies" and "How to Check if the Insurance Payment Will Definitely Be Made When Liability for Damages Arises." [Key Points of the Discussion] 1. About the Checking Method this time 2. First, compare different companies 3. Check if the insurance payment will definitely be made when liability for damages arises - Whether you have a contract with an insurance company - How many years the contract is with the insurance company - Who the three parties in the tripartite contract are *For more details, please refer to the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration between a ground consultant (represented by Blue Sage Co., Ltd.) and Earth Relations. In the 10th session, we will clearly explain "What is the purpose of ground insurance?" through a PowerPoint video. We will discuss the importance of clarifying what to expect from ground insurance companies when choosing ground insurance. [Key Points of the Discussion] 1. Two reasons for confusion and uncertainty when selecting ground insurance. 2. Clarifying what we expect from ground insurance companies. 3. Clearly defining when we want to use ground insurance. 4. Reassessing what we expect from ground insurance companies. *For more details, please refer to the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration with a ground consultant (representative of Blue Sage Co., Ltd.) and Earth Relations. In the 9th session, we will clearly explain "Selecting Reinforcement Methods to Prevent House Tilting" through a PowerPoint video. We will discuss "Land Conditions Prone to Differential Settlement Accidents" and "Considerations for Selecting Methods Based on Each Land Condition." [Key Points of Discussion] 1. Land Conditions Prone to Differential Settlement Accidents - Confirming examples of causes of differential settlement 2. Considerations for Selecting Methods Based on Each Land Condition - Reasons why caution is needed for certain lands - Key points for method selection *For more details, please refer to the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration with a ground consultant (representative of Blue Sage Co., Ltd.) and Earth Relations. In the 8th session, we will clearly explain "Main Types and Features of Ground Reinforcement Methods" through a PowerPoint video. In the additional explanation, we will introduce "Materials for Columnar Ground Improvement" (in the case of general methods). For more details, please refer to the related links. [Key Points] 1. Construction procedures, features, and precautions for each method - Basic considerations for method selection - Surface ground improvement - Columnar ground improvement - Precast concrete piles - Small-diameter steel pipe piles *For more details, please refer to the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground Seminar is a ground course aimed at small-scale buildings, delivered in collaboration with a ground consultant (representative of Blue Sage) and Earth Relations. In the 7th session, we will clearly explain "What is ground reinforcement?" through a PowerPoint video. We will discuss "There are terrains and soils that are unsuitable for ground reinforcement methods" and "The unsuitable terrains and soils differ by method." [Key Points of the Discussion] 1. Ground reinforcement is not piling. 2. Types of methods. 3. Method selection based on terrain and soil (visualization). *For more details, please refer to the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration with a ground consultant (representative of Blue Sage Co., Ltd.) and Earth Relations. In the sixth session, we will clearly explain "Things to be Careful About When Choosing Land Freely (2)" through a PowerPoint video. We will introduce the risks and countermeasures related to retaining wall lots. For more details, please refer to the related links. [Key Points] 1. Disaster risks of land 2. About retaining walls 3. How to check the safety of existing retaining walls *For more details, please refer to the related links page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration between ground consultants (represented by Blue Sage Co., Ltd.) and Earth Relations. In the fifth session, we will clearly explain "Things to be careful about when choosing land freely (1)" through a PowerPoint video. We will introduce how to investigate land disaster risks and natural disaster risks. For more details, please refer to the related link. [Key Points] 1. Types of land disaster risks 2. How to investigate natural disaster risks 3. Liquefaction countermeasures *For more information, please check the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration with ground consultants (represented by Blue Sage Co., Ltd.) and Earth Relations. In the fourth session, we will clearly explain "How to Determine Ground Conditions" through a PowerPoint video. We will introduce topics such as "What is Ground Assessment for Detached Houses," "How to Read Data Tables," and "Factors Other Than Numerical Values That Affect Assessments." For more details, please refer to the related link. [Key Points] 1. What is Ground Assessment for Detached Houses 2. How to Read Data Tables 3. Factors Other Than Numerical Values That Affect Assessments *For more information, please check the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration between a ground consultant (representative of Blue Sage Co., Ltd.) and Earth Relations. In the third session, we will clearly explain "Why Ground Investigation is Necessary" through a PowerPoint video. In the additional explanation, we will delve into the background of why it has become common to say that ground investigations are conducted to obtain defect insurance and ground guarantees. [Key Points of Discussion (Part 1)] 1. "Isn't it okay not to conduct a ground investigation?" - The real reasons (purposes) for conducting ground investigations (extremely important) - Movements in regulations related to ground (blog) - History of ground investigations and ground guarantees (blog) 2. Reasons for necessity: "Ground investigations were not conducted in the past" - There are not a few cases where existing buildings have issues - Ongoing residential land development and terrain 3. Reasons for necessity: "There have been houses built before and there are no particular issues" - The placement of new buildings and the land use history - The impact of demolishing existing buildings and the relationship with new buildings *For more details, please refer to the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration between a ground consultant (represented by Blue Sage Co., Ltd.) and Earth Relations. In the second session, we will clearly explain the basics of "Understanding Residential Land Ground" through a PowerPoint video. We will discuss "The Good and Bad of Ground Based on Topography" and "How to View Topography for Ground Assessment." [Key Points of the Discussion] 1. Review of the Previous Session 2. Reasons Why Improvement Rates Are Unreliable 3. What Companies That Have Not Had Accidents Are Looking at in Topography *For more details, please refer to the related links page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

The ER Ground School is a ground course for small-scale buildings, delivered in collaboration with a ground consultant (representative of Blue Sage Co., Ltd.) and Earth Relations. The first session will clearly explain "The Concept of Residential Ground that Prevents House Tilting" through a PowerPoint video. "We see numerous ground accidents occurring every year, yet there are companies that have almost never caused an accident." "If you want to choose a company that does not cause accidents, focus on 'number of accidents' and 'accident rate.'" [Key Points of the Discussion] 1. The reason I want to convey this again = because ground accidents are not decreasing. 2. The concept of residential ground that prevents house tilting. 3. What considerations are being made to prevent accidents. *For more details, please refer to the related link page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

Our company conducts ground surveys using the cloud-based property management and report creation system 'Jiyujin'. This system is provided by the Japan Ground Quality Business Association. It has unique features such as the ability to instantly check and share on-site SWS data via smartphone, as well as a ground assessment program. 【Features】 ■ Instant checking and sharing of on-site SWS data via smartphone ■ Function to input necessary information without omissions or errors ■ Programming of assessments based on the Jiyuren ground assessment criteria ■ Functions to prevent and monitor data input errors and inaccuracies *For more details, please refer to the related link page or feel free to contact us.

• Site and ground investigation

The ER Ground School is a ground course aimed at small-scale buildings, delivered in collaboration between a ground consultant (representative of Blue Sage Co., Ltd.) and Earth Relations. In the special edition, we provide a clear explanation of "Foundation Planning to Prevent Building Tilt" through a PowerPoint video. The depth at which the supporting layer appears is not constant, and even if the land is flat, the supporting layer is not necessarily flat. For more details, please refer to the related links. [Key Points] 1. Why do buildings tilt? 2. Driving piles 3. Ground investigation plans to increase asset value *For more information, please check the related links page or feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

This column introduces the relationship between terrain and ground conditions. It explains features of terrain by classification and the judgment ratios of good ground and weak ground using diagrams and tables. You can get a rough idea of the ground conditions before conducting a ground survey. Please take a moment to read it. 【Contents】 ■ Main terrain classifications ■ Cross-sectional diagrams of terrain descending from plateaus and hills to valleys ■ Features of terrain by classification ■ Reference: Judgment ratios of good ground and weak ground by terrain classification *For detailed content of the column, please refer to the related links. Feel free to contact us for more information.

• Ground foundation construction method
• Site and ground investigation

This article introduces the laws related to the ground of small-scale buildings such as single-family homes. There are no clear legal regulations or standards regarding the ground of small-scale buildings like single-family homes. This is something that anyone involved in this field is aware of. It is common practice to make judgments based on ground surveys and, if necessary, to carry out ground reinforcement measures to address differential settlement. What does this mean? I have summarized the laws related to residential ground. For more details, please refer to the related links. [Contents] ■ Overview of the Building Law System ■ Building Standards Act ■ Law for the Promotion of Quality Assurance in Housing (Hinshaku Law) ■ Act on the Performance of Warranty for Defects *For detailed content of the column, you can view it through the related links. For more information, please feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

This column presents examples of differential settlement caused by ground conditions, illustrated with diagrams. The purpose of ground investigation and ground reinforcement work is to prevent differential settlement (tilting of the house) in residential buildings. This is to avoid situations like "after a few years of living here, marbles started rolling on the floor..." For more details, please refer to the related links. We encourage you to read it. [Contents (partial)] ■ Uniform settlement and differential settlement ■ Examples of causes of differential settlement - Cases caused by the contraction of weak strata - Cases related to retaining walls and backfill - Cases caused by embankments - Cases due to poor design and construction of ground reinforcement *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

This column explains the establishment, characteristics, issues, and challenges of ground guarantees. It introduces topics such as "The History of Ground Surveys for Detached Houses," "Ground Guarantees and Damage Insurance," "Types of Ground Guarantees," and "The Decrease in Differential Settlement Accidents." For more details, please refer to the related links. We encourage you to read it. 【Contents (Partial)】 ■1. Introduction ■2. The History of Ground Surveys for Detached Houses ■3. The History of Ground Guarantees ■4. Ground Guarantees and Damage Insurance ■5. Types of Ground Guarantees *For detailed content of the column, please refer to the related links. If you have any questions, feel free to contact us.

• Ground foundation construction method
• Site and ground investigation

We offer a "Boring Survey Service (Standard Penetration Test)" that allows for the measurement of soil hardness, soil sampling observation, and soil quality testing using the excavated holes created by digging into the ground. This service can confirm hard ground that cannot be penetrated by the Swedish sounding test, as well as deep ground, and it can also verify the N value and soil characteristics. Please feel free to contact us if you have any requests. 【Features】 ■ Ability to confirm hard ground that cannot be penetrated by the Swedish sounding test ■ Ability to distinguish ground conditions and observe soil characteristics ■ N value can be confirmed *For more details, please feel free to contact us.

• Site and ground investigation