Collapsible loess geology static pressure compaction pile construction method
A technology of collapsible loess and construction methods, which is applied in the field of construction engineering, can solve the problems of high noise disturbance, difficulty in verticality, and high cost of hole formation, and achieve the effects of no noise disturbance to residents, easy promotion, and fast hole formation speed
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[0044] Example 1
[0045] The proposed site of a project is a self-weight collapsible loess site, and the foundation is treated with plain soil compaction piles. ±0.000 The absolute elevation is 592.30, the elevation of the piling surface is -2.400, the designed pile diameter is 560mm, the effective pile length is 13.5m, the distance between the piles is 1250mm, the equilateral triangle is arranged, the design elevation of the pile top is -3.000m, and the pile top is reserved. The thickness of the soil layer is 600mm. Before foundation construction, the dummy pile head and the reserved soil layer above the design elevation of the pile top should be excavated, and the ground from which the loose layer has been excavated should be compacted, and then a 500mm thick 1:6 cement-soil cushion should be made to compact it. The coefficient must not be less than 0.97. The bottom of the hole should be compacted before filling. The filler in the hole shall be backfilled and compacted i...
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