Construction method for enhancing earthwork compactness of small-span #-shaped beam inner lime sand pile

Abstract

The invention belongs to the technical field of building construction, and particularly relates to a construction method for enhancing earthwork compactness of a small-span #-shaped beam inner lime sand pile. The construction method comprises the following steps that S100, site leveling and tamping are conducted; S200, surveying, setting out and positioning of the pile are conducted; S300, a hole forming drilling machine is in place, and hole forming work is conducted; S400, the hole depth and the hole diameter are checked after emptying is conducted; S500, evenly-mixed lime sand is poured into a hole in two times, and layered tamping is conducted; S600, clay sealing and tamping are conducted; and S700, pile forming acceptance is conducted, and construction of the next pile is conducted. According to the construction method, the manufacturing cost is low, the construction period is short, construction is convenient, and the effect is remarkable.

Description

technical field [0001] The invention belongs to the technical field of building construction, in particular to a construction method for enhancing earthwork compaction with lime-sand piles in small-span well-shaped beams. Background technique [0002] In construction projects without a basement, pile foundations and independent foundations are generally used. The normal construction process of the independent foundation house core should be to backfill the earth in layers to the ground beams in time after the construction of the independent foundation caps and frame columns is completed and before the construction of the ground beams. However, when a building with a basement is connected to an independent foundation without a basement, the earthwork can only be filled as a whole after the waterproofing and waterproofing of the outer wall of the basement and the waterproof protective layer are completed. After the main structure, the independent foundation room core soil is f...

AI Technical Summary

Problems solved by technology

Because the ground beams of the independent foundation are arranged as small-span well-shaped beams, the thickness of the earthwork to be filled is large and the area is small. It is impossible to ensure that the layered and piece-by-piece ramming fills up to the design top elevation and meets the compaction requirements according to the specifications, and the foundation treatment is not easy. Cause uneven settlement of building ground and wall cracking

Traditional methods to enhance earthwork compaction include excavation and replacement, mixing lime soil, rotary grouting piles, steel pipe piles, adding reinforced mesh concrete, etc., but construction in small spans is difficult, and floor height limits the construction of rotary grouting piles and steel pipe piles , The reinforced mesh concrete process is cumbersome and the construction cost is relatively high

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