報国エンジニアリング List of Products and Services

We would like to introduce our "Screw Weight Penetration Test." This method allows for continuous measurement of delicate data from soft ground, and the investigation equipment is compact, making it suitable for narrow sites, such as those for single-family homes and other lightweight structures. The investigation method involves inserting a survey rod with a screw tip into the ground statically, from which the ground resistance value is determined based on the rotation speed and penetration amount. 【Features】 ■ Continuous measurement of delicate data from soft ground ■ Compact investigation equipment that can be used in narrow sites ■ Suitable for investigating lightweight structures such as single-family homes *For more details, please refer to the related links or feel free to contact us.

We would like to introduce our "Boring Survey (Standard Penetration Test)." In general civil engineering and construction work, it is said to be an effective survey method because it allows for a standard and direct confirmation of the ground. By excavating the actual ground and using the standard penetration test, it is possible to assess ground strength while simultaneously collecting soil samples. The collected soil samples can be analyzed through laboratory tests to understand the physical and mechanical properties of the soil. 【Features】 ■ Direct confirmation of the ground ■ Simultaneous collection of soil samples and assessment of ground strength ■ Ability to understand the physical and mechanical properties of the soil *For more details, please refer to the related links or feel free to contact us.

We would like to introduce our "Groundwater Level Measurement Method (Chikachan)." This method utilizes the borehole immediately after the Screw Weight Penetration Test (SWS test) to measure groundwater levels. A perforated tube with a screw point at the tip is inserted, and an alternating current resistivity water level meter is used to measure groundwater levels quickly and with high precision. 【Features】 ■ Can measure water levels in the borehole (up to a depth of 10m) ■ Provides highly reliable water level measurements ■ Can penetrate into the ground ■ High-precision measurement cable ■ Allows accurate measurement of water level, water quality indicators, and salinity concentration *For more details, please refer to the related links or feel free to contact us.