Method for constructing recycled building enclosure

Abstract

The invention discloses a method for constructing a recycled building enclosure. The method comprises the steps: selecting the diameter of a hole to be dug; measuring and setting out, and excavating a guide groove; drilling, spraying water, and digging the hole; lifting a drill; hoisting the building enclosure; sinking the building enclosure and backfilling. After a foundation pit is excavated and backfill is finished, the building enclosure is drawn out by hoisting equipment and then is recycled, construction wastes, sandstone or clay are backfilled into the hole. The method adopts drilling equipment to dig the hole, so that the sinking resistance and the compaction effect of the building enclosure are reduced. In the construction process, soil masses are stirred in place, and no slurry is discharged. The shaping and quality of hole digging is ensured through the stirred soil or slurry, meanwhile the frictional force of the building enclosure and the soil masses is reduced, and the building enclosure is conveniently constructed and recycled.

Description

technical field [0001] The invention relates to the technical field of foundation pit engineering construction, in particular to a construction method of a recyclable enclosure structure. Background technique [0002] In the prior art, cast-in-situ piles, engineering piles or prefabricated piles are usually used for foundation pit protection piles. However, after years of practice, it has been found that the construction cost of cast-in-place piles is relatively high, large mechanical equipment is required, and the construction process is relatively complicated; engineering piles rely on Rigid pile bearing, rigid pile is usually section steel, and it is difficult to realize recycling due to the deformation of section steel after foundation pit construction is completed, and its economic enclosure depth is generally about 8m, which is limited within a certain range; Soil effect, when used as an enclosure pile, it needs to bear a large bending moment and shear force, and the e...

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Problems solved by technology

[0002] In the prior art, cast-in-situ piles, engineering piles or prefabricated piles are usually used for foundation pit protection piles. However, after years of practice, it has been found that the construction cost of cast-in-place piles is relatively high, large mechanical equipment is required, and the construction process is relatively complicated; engineering piles rely on Rigid pile bearing, rigid pile is usually section steel, and it is difficult to realize recycling due to the deformation of section steel after foundation pit construction is completed, and its economic enclosure depth is generally about 8m, which is limited within a certain range; Soil effect, when used as an enclosure pile, it needs to bear a large bending moment and shear force, and the existing pile connection technology is difficult to guarantee the quality of the pile connection, and the existing construction technology largely limits the promotion of prefabricated piles, and it is difficult to achieve prefabrication Pile Recycling

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