A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for underground diaphragm wall under condition of irremovable underground obstacle
The invention relates to a construction method for an underground diaphragm wall under the condition of an irremovable underground obstacle. The construction method comprises the following steps of making a deep guide wall to the bottom of a pipe gallery, and protecting the pipe gallery through protective steel plates; separately forming grooves along the protective steel plates on the both sidesof the pipe gallery through a trenching machine to a set position below the bottom elevation of the pipe gallery; and performing underwater towing and translation on a plurality of reinforcement cagesthrough a crane, so that all the reinforcement cages are horizontally moved to the specified position below the pipe gallery. The pipe gallery is completely wrapped and protected through the protective steel plates, and the situation that a grab bucket collides with the pipe gallery structure by mistake during grooving is avoided; through underwater towing and translation , the breakdown and damage risk caused by uneven stress of the reinforcement cages in the translation process can be avoided, and it is ensured the reinforcement cages are horizontally moved to the specified position below the pipe gallery; and the overall rigidity of a wall and the stress safety of the foundation pit below the pipe gallery are ensured.
本发明涉及一种不可拆除地下障碍物情况下地下连续墙施工方法，包括以下步骤：做深导墙至管廊底部，并用保护钢板对所述管廊进行保护；利用成槽机沿所述管廊两侧的所述保护钢板分别成槽，至管廊底标高以下设定位置；利用吊车对若干副钢筋笼进行水下牵拉平移，使所述钢筋笼全部平移至管廊下方指定位置。保护钢板对管廊进行全包保护，避免了成槽时抓斗误碰对管廊结构的破坏；水下牵拉平移，可防止平移过程中钢筋笼受力不均匀产生的散架破坏风险，保证钢筋笼平移至管廊下指定位置，保证管廊下方墙体整体刚度及基坑受力安全。
Construction method for underground diaphragm wall under condition of irremovable underground obstacle
The invention relates to a construction method for an underground diaphragm wall under the condition of an irremovable underground obstacle. The construction method comprises the following steps of making a deep guide wall to the bottom of a pipe gallery, and protecting the pipe gallery through protective steel plates; separately forming grooves along the protective steel plates on the both sidesof the pipe gallery through a trenching machine to a set position below the bottom elevation of the pipe gallery; and performing underwater towing and translation on a plurality of reinforcement cagesthrough a crane, so that all the reinforcement cages are horizontally moved to the specified position below the pipe gallery. The pipe gallery is completely wrapped and protected through the protective steel plates, and the situation that a grab bucket collides with the pipe gallery structure by mistake during grooving is avoided; through underwater towing and translation , the breakdown and damage risk caused by uneven stress of the reinforcement cages in the translation process can be avoided, and it is ensured the reinforcement cages are horizontally moved to the specified position below the pipe gallery; and the overall rigidity of a wall and the stress safety of the foundation pit below the pipe gallery are ensured.
本发明涉及一种不可拆除地下障碍物情况下地下连续墙施工方法，包括以下步骤：做深导墙至管廊底部，并用保护钢板对所述管廊进行保护；利用成槽机沿所述管廊两侧的所述保护钢板分别成槽，至管廊底标高以下设定位置；利用吊车对若干副钢筋笼进行水下牵拉平移，使所述钢筋笼全部平移至管廊下方指定位置。保护钢板对管廊进行全包保护，避免了成槽时抓斗误碰对管廊结构的破坏；水下牵拉平移，可防止平移过程中钢筋笼受力不均匀产生的散架破坏风险，保证钢筋笼平移至管廊下指定位置，保证管廊下方墙体整体刚度及基坑受力安全。
Construction method for underground diaphragm wall under condition of irremovable underground obstacle
不可拆除地下障碍物情况下地下连续墙施工方法
KANG HONGYUAN (author)
2020-10-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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