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Mixing pile water-stop curtain and construction method for sea reclamation of deep and thick rock areas

A water-stop curtain and mixing pile technology, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as inability to construct soil layers, achieve the effects of facilitating construction, improving overall strength, and preventing soil collapse

Active Publication Date: 2021-09-07
WUHAN SURVEYING GEOTECHN RES INST OF MCC
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Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a construction method for the water-stop curtain of the mixing pile used in the deep and thick block rock area of ​​the sea reclamation. This method can effectively solve the problem that the water-stop curtain of the mixing pile cannot Construction Problems in Soil Layers Containing Block Rocks

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  • Mixing pile water-stop curtain and construction method for sea reclamation of deep and thick rock areas
  • Mixing pile water-stop curtain and construction method for sea reclamation of deep and thick rock areas
  • Mixing pile water-stop curtain and construction method for sea reclamation of deep and thick rock areas

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[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. attached Figure 1 to Figure 6 All are drawings of embodiments, drawn in a simplified manner, and are only used for the purpose of clearly and concisely illustrating the embodiments of the present invention. The following technical solutions shown in the drawings are specific solutions of the embodiments of the present invention, and are not intended to limit the scope of the claimed invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right" etc. are based on those shown in the accompanying...

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Abstract

The invention provides a water-stop curtain of a stirring pile used for reclamation of deep and thick rock areas and a construction method thereof. The method comprises the following steps: (1) reinforcing the soil layer above the block rock layer with stirring piles along the axis direction of foundation pit support; (2) using a rotary drilling rig to drill and introduce the reinforced block rock layer (3) backfill the construction area of ​​the rotary drilling rig with clay; (4) carry out the construction of the mixing pile water-stop curtain on the treated block rock area. In the present invention, by reinforcing the soil layer above the block stone area, the drilling and introduction hole construction of sub-trough sections can be completed, and cohesive soil or sandy soil can be backfilled in the drilled holes, and then the conventional mixing pile water-stop curtain can be carried out. The construction solves the problem that the water-stop curtain of the mixing pile cannot be constructed in the soil layer containing block stones.

Description

technical field [0001] The invention relates to the field of geotechnical engineering, in particular to a water-stop curtain of a mixing pile used for reclamation of deep and thick rock areas and a construction method thereof. Background technique [0002] In the area with high groundwater level, stratum structure and complex hydrogeological conditions (deep and thick rock layer, deep and thick riprap area near the sea, pebble layer), during the construction of foundation pit support, in order to prevent groundwater from seeping into the foundation pit, the foundation pit support On the outside of the piles, one or more rows of mixing piles shall be constructed with water-stop curtains, and the mixing piles shall interlock with each other to form a closed water-stop system around the foundation pit supporting piles. However, when the stratum contains rocks, ripraps, pebbles and construction waste, if no corresponding measures are taken to remove the blocks, ripraps, pebbles ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/18E02D5/46
CPCE02D5/46E02D19/18
Inventor 丁洪元杨宽孙海王彬州曹孟
Owner WUHAN SURVEYING GEOTECHN RES INST OF MCC
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