【For Urban Development】Ram Penetration Test for Small Steel Frame Buildings
Ground investigation
A compact device that achieves high-precision ground surveys even in dense areas.
In urban development, conducting surveys in densely populated areas poses challenges in accurately determining the depth of the supporting layer for steel frame building construction on narrow sites where large machinery cannot access or where the front road is narrow. When it is difficult to bring in large boring machines for standard penetration tests, it becomes challenging to accurately assess the ground conditions. This service utilizes a small self-propelled automatic ram sounding testing machine, providing an optimal solution for smoothly conducting deep ground surveys even in narrow sites or locations with access restrictions. 【Usage Scenarios】 - Construction of steel frame buildings on narrow urban sites - Ground surveys at sites with narrow front roads - Surveys in locations where the transport of large machinery is difficult 【Benefits of Implementation】 - Prevention of excessive pile length design - Reduction of unnecessary pile reinforcement costs - Achieving rational structural design - Providing reliable and trustworthy ground quality
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【Features】 - Automatically measures the number of impacts (Nd value) for every 200mm of penetration by dropping a 63.5kg hammer from a height of 500mm. - Accurately identifies 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 by measuring the rotational torque during impacts. - Provides highly accurate data with a strong correlation to standard penetration tests. - Utilizes a compact, space-saving self-propelled machine with dimensions approximately 830 to 1000mm in width and 2350 to 2570mm in height. 【Our Strengths】 Geotec 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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Applications/Examples of results
It is ideal for ground surveys for the construction of mid-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 (e.g., CPP method), 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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