Cast-in-place pile supporting device and construction method in karst cave area

Abstract

The invention discloses a cast-in-place pile supporting device and a construction method in a karst cave area, comprising a fixed pile. The socket, the socket rod and the socket are fixed by the locking structure, the middle of the side wall of the fixed pile is welded with an ear block, a steel pipe fixing plate is installed on the ear block through a cylindrical pin, and a second foot plate is movably installed on the steel pipe fixing plate , a fixing ring is vertically welded on the fixing pile, an insertion hole is arranged on the fixing ring, a positioning column is inserted into the insertion hole, and a reinforcement device is installed on the positioning column. , and splicing and fixing through the tie rod, the plug-in cylinder and the locking structure, so that the diameter of the fixed pile can be changed, and it is convenient to adjust the radius of the fixed pile according to the diameter of the cast-in-place pile, so that the fixed pile can meet the different diameters of the cast-in-place piles. construction requirements.

Description

technical field [0001] The invention relates to the technical field of building construction devices, in particular to a cast-in-place pile supporting device and a construction method in a karst cave area. Background technique [0002] During the construction of cast-in-place piles using percussion drilling, there may be karst caves in the stratum. Although regional cave predictions can be given during the design process, the specific location and space size of the caves cannot be accurately predicted, which is easy to cause during the construction process of percussion drilling. Collapsed holes, if a device that can reinforce and support the cast-in-place piles during the construction of the piles can be invented, the safety of the cast-in-place piles during the construction process can be ensured and the occurrence of collapsed holes can be avoided. [0003] Therefore, the present invention proposes a cast-in-place pile supporting device and a construction method in a kars...

AI Technical Summary

Problems solved by technology

[0002] During the construction of cast-in-situ piles using percussion drills, there may be karst caves in the stratum. Although the regional karst caves can be predicted during the design process, the specific location and spatial size of the karst caves cannot be accurately predicted. Hole collapse, if a device that can reinforce and support cast-in-situ piles during the construction of bored piles can be invented, it can ensure the safety of cast-in-place piles during construction and avoid hole collapse

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