Construction method for anti-sliding cast-in-place pile

Abstract

The invention discloses a construction method for an anti-sliding cast-in-place pile. According to the technical scheme, the construction method is characterized in that means of timely pumping water and quickening warehousing during pouring, and technical means of quickening initial setting of concrete are adopted at a place where a slope body with a slope surface close to the river has relatively great water seepage, possibly collapses and sinks, and causes great difficulty to pouring construction. The construction method has the advantages that a submersible pump is adopted for draining off water when a water yield in an excavation process is relatively small, in-hole two-fluid water-stop slip casting is firstly carried out before every-time excavation construction when the water yield is relatively great, wherein every-time excavation depth is 1m, two-fluid slip casting holes are arranged along the periphery of a pile hole according to hole depth of 1.5m and spacing of 0.5m, so that the wall body collapse can be effectively controlled; and in a concrete pouring process, a C30 slump constant is as small as possible, and a necessary accelerating agent is added, so that pile body stabilization can be quickened.

Description

technical field [0001] The invention relates to a construction method of an anti-sliding cast-in-place pile, belonging to the technical field of slope reinforcement. Background technique [0002] The anti-slide pile mainly bears the lateral force in the process of supporting the landslide, but it is completely different from the piles bearing the lateral force in the general building foundation and bridge pile foundation. The latter directly bears the load and actively transfers the stress to the soil. However, the anti-slide piles in the landslide treatment project do not directly bear the effect of external loads, but because the landslide body deforms or moves under the action of its own weight or other external factors, and the passive bearing slope body is generated due to deformation. load action. [0003] For example, the patent application number CN201510041985.7 discloses a construction method of two-way spiral soil squeezed cast-in-situ piles, the steps include: c...

AI Technical Summary

Problems solved by technology

[0006] To sum up, although the construction of traditional anti-slide piles is fast and easy to operate, the disadvantage is that the anti-slide piles use the soil around the piles to stabilize the soil, which is not suitable for more plastic landslides; There are many steel materials; since the section of the anti-slide pile is mostly rectangular, and the rectangular pile is basically excavated by hand, which has the disadvantages of low mechanization rate and high safety risk