Ground investigation using ram penetration test for small detached houses.
Ground investigation that accurately identifies deep support layers even in narrow sites.
In residential construction, particularly for small detached houses, there is a challenge due to limited site space, which makes it difficult to bring in large machinery and accurately determine the depth of the supporting layer. This is also the case when the front road is narrow. This service uses a small self-propelled automatic ram sounding test machine, providing an optimal solution to this challenge by smoothly conducting deep ground investigations even in narrow sites or locations with access restrictions. 【Usage Scenarios】 - Construction of single-family homes on small urban lots - Sites where the front road is narrow and large machinery cannot be brought in - When accurate understanding of deep supporting layers is required 【Benefits of Implementation】 - Prevention of excessive pile length design - Reduction of unnecessary pile reinforcement costs - Realization of rational structural design - Provision of reliable and trustworthy ground quality
basic information
【Features】 - Automatically drops a 63.5kg hammer from a height of 500mm for continuous automatic measurement of the number of impacts (Nd value) for every 200mm of penetration. - Accurately understands the composition of hard strata equivalent to N value 50 and up to a maximum depth of 30m with high precision. - Automatically corrects for surrounding friction effects through rotational torque measurement during impacts. - Provides high-precision data with a strong correlation to standard penetration tests. - Space-saving design with a width of approximately 830 to 1000mm and a height of approximately 2350 to 2570mm, making it easy to install and operate in confined spaces. 【Our Strengths】 Geotech offers "total ground services," providing a one-stop solution for all ground-related tasks, from ground surveys and reinforcement design/construction for new buildings to settlement correction work for existing structures and soil contamination investigations. With extensive experience and reliable technology, we create the future of cities from the ground up.
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Site investigation
Applications/Examples of results
It is ideal for ground surveys for the construction of mid- to low-rise steel buildings, stores, and welfare facilities in narrow sites, flagpole lots, and densely populated urban areas where large heavy machinery and 3-ton unic cranes have difficulty accessing. In particular, it is used to confirm the depth of the supporting layer when adopting methods such as steel pipe pile construction or small-diameter steel pipe construction with wing tips (CPP method, etc.), as well as for cost optimization by preventing excessive pile lengths. Additionally, it can be widely utilized in practical applications such as continuous confirmation of the inclination of the supporting layer at multiple locations as a supplementary survey to standard penetration tests, deep soil bearing capacity evaluation of uneven ground at demolition sites, and obtaining structural calculation data necessary for building confirmation applications.
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