Construction method for mucky soil supporting beam cushion layer

Abstract

The invention discloses the technical field of supporting beam cushion layer construction, and particularly relates to a construction method for a mucky soil supporting beam cushion layer. The construction method comprises the following specific steps that S1, surveying and setting out are conducted, specifically, surveying and setting out are conducted according to a design drawing and the site condition, the positions of a supporting beam and a cushion layer area are marked, and the two sides of the cushion layer are 100mm wider than the beam; S2, mucky soil marked out of the positions of the supporting beam and the cushion layer area is cleared, and baffle components are placed on the outer sides of the marked positions of the supporting beam and the cushion layer area; S3, foundation treatment is conducted, specifically, the marked cushion layer area is filled with foundation components, site gravel concrete or manufactured cement soil is mixed into the mucky soil and compacted, and foundation treatment is conducted; and S4, foundation leveling is conducted, specifically, the foundation components filled in the cushion layer area are compacted and leveled. The construction method has the beneficial effects that differential settlement after mucky soil cushion layer construction is solved, the flatness of the cushion layer is ensured, the construction quality of the cushion layer and smooth construction of the subsequent supporting beam are ensured, and accordingly smooth proceeding of foundation pit engineering is ensured.

Description

technical field [0001] The invention relates to the field of supporting beam cushion construction, in particular to a method for constructing a muddy soil supporting beam cushion. Background technique [0002] Silty soil has the characteristics of low liquid limit, low permeability, and difficult drainage and consolidation. It is easy to liquefy into silt when it encounters water. Especially in the rainy season, the continuous rain makes the bottom of the foundation pit covered with silt. Even if there is precipitation from the foundation pit, The soil at a depth of about 300mm at the shallow bottom of the pit is still relatively soft. [0003] The prior art has the following deficiencies: the existing silty soil support beam cushion construction method is difficult to ensure the smoothness of the cushion, and during the laying and maintenance of the support beam cushion of the foundation pit, the cushion will sink unevenly, and the thickness of the cushion is 150mm in sever...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention provides a kind of silty soil support beam cushion construction method, by cleaning the silty soil at the support beam and cushion position, the baffle parts are placed on the outside of the support beam and cushion area, Fill and press the foundation components inside the components, and install formwork components on the upper end of the foundation components to solve the problems that it is difficult to ensure the smoothness of the cushion layer and the uneven subsidence of the cushion layer, which affects the pouring of the subsequent supporting beams and the progress of foundation pit excavation

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