A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of subsection prefabricated underground diaphragm wall
The invention relates to the technical field of underground engineering, in particular to a construction method of a subsection prefabricated underground diaphragm wall, which comprises the following steps: constructing a guide wall of the underground diaphragm wall, excavating soil in a groove of the underground diaphragm wall in a framing manner, backfilling mucky soil into the groove after the groove is formed, transporting the lower section prefabricated underground diaphragm wall to a groove opening, sinking to a designed elevation, and locking. The method comprises the steps that firstly, the upper-section prefabricated underground diaphragm wall is hoisted to the position above the lower-section prefabricated underground diaphragm wall, a connecting joint of the upper-section prefabricated underground diaphragm wall and the lower-section prefabricated underground diaphragm wall is constructed, finally, locking of the lower-section prefabricated underground diaphragm wall is relieved, a whole formed by connecting the upper-section prefabricated underground diaphragm wall and the lower-section prefabricated underground diaphragm wall sinks to the designed elevation, and mucky soil is replaced out through grouting. According to the method, the underground diaphragm wall groove is backfilled with the mucky soil firstly, the prefabricated underground diaphragm wall can be put down conveniently, meanwhile, the prefabricated underground diaphragm wall can be relatively stable in the groove, after the whole underground diaphragm wall sinks in place, the mucky soil is replaced and reinforced through grouting, and the stability of the underground diaphragm wall is improved.
本发明涉及地下工程技术领域，具体涉及一种分段预制地下连续墙的施工方法，先施工地下连续墙导墙，再分幅开挖地下连续墙槽内土体，成槽后向槽内回填淤泥质土，接着将下段预制地下连续墙运输至槽口，并下沉至设计标高后锁紧，之后将上段预制地下连续墙吊装至下段预制地下连续墙的上方，施工上、下两段预制地下连续墙的连接节点，最后解除对下段预制地下连续墙的锁紧，将上、下两段预制地下连续墙连成的整体下沉至设计标高，注浆将淤泥质土置换出来。本发明先在地下连续墙槽内回填淤泥质土，便于下放预制地下连续墙，同时有利于预制地下连续墙在槽内相对稳定，并在整体下沉到位后，通过注浆将淤泥质土置换加固，提高地下连续墙的稳固性。
Construction method of subsection prefabricated underground diaphragm wall
The invention relates to the technical field of underground engineering, in particular to a construction method of a subsection prefabricated underground diaphragm wall, which comprises the following steps: constructing a guide wall of the underground diaphragm wall, excavating soil in a groove of the underground diaphragm wall in a framing manner, backfilling mucky soil into the groove after the groove is formed, transporting the lower section prefabricated underground diaphragm wall to a groove opening, sinking to a designed elevation, and locking. The method comprises the steps that firstly, the upper-section prefabricated underground diaphragm wall is hoisted to the position above the lower-section prefabricated underground diaphragm wall, a connecting joint of the upper-section prefabricated underground diaphragm wall and the lower-section prefabricated underground diaphragm wall is constructed, finally, locking of the lower-section prefabricated underground diaphragm wall is relieved, a whole formed by connecting the upper-section prefabricated underground diaphragm wall and the lower-section prefabricated underground diaphragm wall sinks to the designed elevation, and mucky soil is replaced out through grouting. According to the method, the underground diaphragm wall groove is backfilled with the mucky soil firstly, the prefabricated underground diaphragm wall can be put down conveniently, meanwhile, the prefabricated underground diaphragm wall can be relatively stable in the groove, after the whole underground diaphragm wall sinks in place, the mucky soil is replaced and reinforced through grouting, and the stability of the underground diaphragm wall is improved.
本发明涉及地下工程技术领域，具体涉及一种分段预制地下连续墙的施工方法，先施工地下连续墙导墙，再分幅开挖地下连续墙槽内土体，成槽后向槽内回填淤泥质土，接着将下段预制地下连续墙运输至槽口，并下沉至设计标高后锁紧，之后将上段预制地下连续墙吊装至下段预制地下连续墙的上方，施工上、下两段预制地下连续墙的连接节点，最后解除对下段预制地下连续墙的锁紧，将上、下两段预制地下连续墙连成的整体下沉至设计标高，注浆将淤泥质土置换出来。本发明先在地下连续墙槽内回填淤泥质土，便于下放预制地下连续墙，同时有利于预制地下连续墙在槽内相对稳定，并在整体下沉到位后，通过注浆将淤泥质土置换加固，提高地下连续墙的稳固性。
Construction method of subsection prefabricated underground diaphragm wall
一种分段预制地下连续墙的施工方法
XIONG CHAOHUI (author) / SUN XUEBING (author) / FU RUI'AN (author) / CAI XINGRUI (author) / ZHOU JIAN (author) / LI ZHAOPING (author) / DOU HAITAO (author) / LI WENBIAO (author) / BAI YANG (author) / ZHANG LIREN (author)
2023-09-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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