A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Silt stratum underground pipe gallery foundation replacement sand reinforcing method
The invention discloses a silt stratum underground pipe gallery foundation replacement sand reinforcing method. The method comprises the steps that 1, a urease extracting solution is prepared on site; 2, pipe gallery foundation replacement sand pretreatment is conducted; and 3, pipe gallery foundation replacement sand reinforcing is conducted, specifically, firstly, an underground supporting structure is constructed below a pipe gallery foundation, silt on the lower portion of the pipe gallery foundation is excavated in an enclosure area, a wood formwork spliced through plug pins is constructed in a to-be-backfilled area, EICP layered reinforcing backfilling is conducted on pretreated replacement sand in the wood formwork till the pretreated replacement sand is backfilled to the designated elevation, the wood formwork is completely dismantled after backfilling is completed, after replacement sand cushion layers of the same section of pipe gallery are subjected to EICP layered reinforcing backfilling segmentation, the underground supporting structure below the pipe gallery foundation is dismantled, and a main body structure of the pipe gallery is constructed. By improving an existing replacement sand reinforcing method, the special underground geological condition of a silt stratum is combined, and thus the method is creatively applied to underground pipe gallery foundation reinforcing of the silt stratum.
本发明公开了一种淤泥地层地下管廊地基换填砂加固方法，第一步，现场脲酶提取液制备；第二步，管廊地基换填砂预处理；第三步，管廊地基换填砂加固；首先在管廊地基下方进行地下支护结构施作，并在围护区域内对管廊地基下部淤泥进行开挖；在待回填区域进行插销拼装的木模板搭建；将预处理换填海砂在木模板内进行EICP分层加固回填，直至回填至指定标高；回填结束后将木模板进行完整拆除，待同一节管廊的换填砂垫层EICP分层加固回填分段完成后，拆除管廊地基下方的地下支护结构，施作管廊的主体结构。通过对现有的换填砂加固方法进行改良，结合淤泥地层特殊的地下地质情况，以创造性地转用于淤泥地层的地下管廊地基加固。
Silt stratum underground pipe gallery foundation replacement sand reinforcing method
The invention discloses a silt stratum underground pipe gallery foundation replacement sand reinforcing method. The method comprises the steps that 1, a urease extracting solution is prepared on site; 2, pipe gallery foundation replacement sand pretreatment is conducted; and 3, pipe gallery foundation replacement sand reinforcing is conducted, specifically, firstly, an underground supporting structure is constructed below a pipe gallery foundation, silt on the lower portion of the pipe gallery foundation is excavated in an enclosure area, a wood formwork spliced through plug pins is constructed in a to-be-backfilled area, EICP layered reinforcing backfilling is conducted on pretreated replacement sand in the wood formwork till the pretreated replacement sand is backfilled to the designated elevation, the wood formwork is completely dismantled after backfilling is completed, after replacement sand cushion layers of the same section of pipe gallery are subjected to EICP layered reinforcing backfilling segmentation, the underground supporting structure below the pipe gallery foundation is dismantled, and a main body structure of the pipe gallery is constructed. By improving an existing replacement sand reinforcing method, the special underground geological condition of a silt stratum is combined, and thus the method is creatively applied to underground pipe gallery foundation reinforcing of the silt stratum.
本发明公开了一种淤泥地层地下管廊地基换填砂加固方法，第一步，现场脲酶提取液制备；第二步，管廊地基换填砂预处理；第三步，管廊地基换填砂加固；首先在管廊地基下方进行地下支护结构施作，并在围护区域内对管廊地基下部淤泥进行开挖；在待回填区域进行插销拼装的木模板搭建；将预处理换填海砂在木模板内进行EICP分层加固回填，直至回填至指定标高；回填结束后将木模板进行完整拆除，待同一节管廊的换填砂垫层EICP分层加固回填分段完成后，拆除管廊地基下方的地下支护结构，施作管廊的主体结构。通过对现有的换填砂加固方法进行改良，结合淤泥地层特殊的地下地质情况，以创造性地转用于淤泥地层的地下管廊地基加固。
Silt stratum underground pipe gallery foundation replacement sand reinforcing method
淤泥地层地下管廊地基换填砂加固方法
HUANG MING (author) / WANG DEFA (author) / XU KAI (author) / YU PENGFEI (author) / PENG YIXIN (author) / LIU ZIJIAN (author) / ZHANG YAOXING (author)
2021-09-21
Patent
Electronic Resource
Chinese
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