A construction method of ultra-deep buried test piles in rock formations
A construction method and technology of test piles, which can be applied in foundation structure tests, sheet pile walls, earthwork drilling and mining, etc., can solve the problem of limited static load detection operating conditions at the bottom of ultra-deep foundation pits and inaccurate elevation of underwater concrete overfilling Controlling, difficulty in forming holes in complex rock formations, etc., to achieve the effect of solving large-tonnage static load tests, ensuring the elevation of pile bottoms, and ensuring accuracy
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[0097] attached figure 1 As shown in the figure, the construction method of the ultra-buried depth test pile in the rock layer of the present invention is a construction method of the ultra-buried depth test pile in the rock layer. The concrete outer formwork isolates the friction resistance of part of the pile body of the empty pile, and realizes the accurate detection of the bearing capacity of the effective pile body before the excavation of the deep foundation pit; and then uses the BIM technology to form a rock layer information model from the soil layer parameters obtained by multiple advanced drilling. Determine the length of the pile; then use the monitoring probe to automatically collect the technical parameters in the process of underwater concrete pouring and process the data, dynamically monitor the height of the poured concrete, and use the preset limit to realize the brake alarm prompt and direct the pouring operation; as follows:
[0098] S1. Construction prepa...
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