Constructing method for continuous bearing layer of super long socketed pile in bead-like karst area
A karst area and bearing layer technology, applied in sheet pile wall, building, infrastructure engineering and other directions, can solve the problems of construction difficulties, omission of pile foundation in the bearing layer at the bottom of the pile, string holes, etc. The effect of increasing the pile bottom elevation and shortening the design pile length
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[0060] Reference Figure 1 to Figure 10 In the embodiment of the present invention, a method for constructing a continuous bearing layer of ultra-long rock-socketed piles in a beaded karst area mainly includes the following steps:
[0061] S1. Through single pile porous, detailed survey of the specific vertical distribution of geological rock structure and karst caves at each pile position, and determine the design elevation and pile length of each pile through active optimization design;
[0062] S2. A number of vertical long steel pipes are evenly pre-embedded along the pile circumference inside the steel cage of each pile body;
[0063] S3. Use the method of drilling core to conduct supplementary survey of the rock geology of the bearing strata at the bottom of each pile by using the steel pipe channel, and combine the detailed survey to finally determine whether there is a weak layer at the bottom of each pile and its specific distribution;
[0064] S4. Combined with the survey in...
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