Replacement device and method for filler of empty hole part of bored pile

Abstract

The invention provides a replacement device and method for a filler of an empty hole part of a bored pile. The device comprises n flow guide pipes, a flow guide trench, a bracket, a flexible pipe and a mud pit, wherein n is 1 when the length of the empty hole is 8-10 m; n is 2 when the length of the empty hole is 10-15 m; n is 3 when the length of the empty hole is 15-20 m; n is 4 when the length of the empty hole is 20-25 m; n is 5 when the length of the empty hole is 25-30 m; the bracket is used for fixing the end parts, close to the ground, of the n flow guide pipes; the end parts, close to the ground, of the n flow guide pipes are communicated with the flow guide trench; one end of the flexible pipe is connected with the flow guide trench, and the other end of the flexible pipe is connected with the mud pit. After the n flow guide pipes of different lengths are placed in the empty hole, sandy oil is used as the filler and fills the empty hole to replace mud in the hole so as to realize compact filling in the empty hole and certain strength and guarantee the quality and the safety of the subsequent construction; the device and the method have the advantages of easiness and convenience in construction, low cost, no influence on the construction period, obvious effect and energy conservation and environment protection effects.

Description

technical field [0001] The invention relates to the field of construction, in particular to a device and method for replacing fillers in holes of bored cast-in-place piles. Background technique [0002] Bored pile is a kind of pile foundation widely used in industrial and civil buildings, roads and bridges and other projects. With the development of buildings, due to various structural and technical requirements, the pile top elevation of some bored piles is often buried at a deeper position below the surface. For example, before the construction of some deep foundation pits, the hollow part of the engineering pile reached 10m. to more than 20m, so the deep hole above the pile top is prone to hole collapse when drilling adjacent piles. At present, the method of backfilling sand and soil is generally used, but for the hole depth is large, plus The specific gravity of the mud in the hole is relatively large, and it is difficult to fill the lower part of the hole with sand and...

AI Technical Summary

Problems solved by technology

With the development of buildings, due to various structural and technical requirements, the pile top elevation of some bored piles is often buried at a deeper position below the surface. For example, before the construction of some deep foundation pits, the hollow part of the engineering pile reached 10m. to more than 20m, so the deep hole above the pile top is prone to hole collapse when drilling adjacent piles. At present, the method of backfilling sand and soil is generally used, but for the hole depth is large, plus The specific gravity of the mud in the hole is relatively large, and it is difficult to fill the lower part of the hole with sand and soil, which cannot meet the requirements of filling. Therefore, for the stratum with poor geological conditions, the normal construction of the adjacent pile hole of the pile cannot be satisfied, and the equipment is prone to collapse. Dumping and other hazards

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