Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hole collapse preventive trenching construction method of underground diaphragm wall
The invention belongs to the field of building foundation pit engineering and discloses a hole collapse preventive trenching construction method of an underground diaphragm wall. A construction is composed of a grab bucket (1) of a trenching machine, retaining wall slurry (2), a soil layer (3), a soft soil layer (4), a conduit (5), cemented soil (6), an underground diaphragm wall (7) constructed, and guide walls (8). The underground diaphragm wall easily suffers hole collapse during trenching construction; to solve the problem, a trench of the underground diaphragm wall can be filled with the cemented soil reaching 1 to 2 m above the trench hole collapse part, and soft retaining walls form after settling and compacting; after the cemented soil has stable quality and has certain strength, trenching construction continues, and the soft retaining walls made up of the cemented soil function in retaining jointly with the slurry so as to prevent hole collapse. The environment with the soft soil layer is improved through the cemented soil, the soft retaining walls are formed and finish retaining jointly with the slurry, the problem that lateral supporting force of the slurry is poor is effectively solved, the soft soil layer of high flow plasticity is protected from hole collapse, smoothness of trenching is ensured, and trenching quality is improved.
Hole collapse preventive trenching construction method of underground diaphragm wall
The invention belongs to the field of building foundation pit engineering and discloses a hole collapse preventive trenching construction method of an underground diaphragm wall. A construction is composed of a grab bucket (1) of a trenching machine, retaining wall slurry (2), a soil layer (3), a soft soil layer (4), a conduit (5), cemented soil (6), an underground diaphragm wall (7) constructed, and guide walls (8). The underground diaphragm wall easily suffers hole collapse during trenching construction; to solve the problem, a trench of the underground diaphragm wall can be filled with the cemented soil reaching 1 to 2 m above the trench hole collapse part, and soft retaining walls form after settling and compacting; after the cemented soil has stable quality and has certain strength, trenching construction continues, and the soft retaining walls made up of the cemented soil function in retaining jointly with the slurry so as to prevent hole collapse. The environment with the soft soil layer is improved through the cemented soil, the soft retaining walls are formed and finish retaining jointly with the slurry, the problem that lateral supporting force of the slurry is poor is effectively solved, the soft soil layer of high flow plasticity is protected from hole collapse, smoothness of trenching is ensured, and trenching quality is improved.
Hole collapse preventive trenching construction method of underground diaphragm wall
YANG SHAOZHEN (Autor:in) / WANG CHANGLU (Autor:in) / YIN HUAFU (Autor:in) / PENG YUN (Autor:in) / XU YANMIAO (Autor:in) / TAN CANGHAI (Autor:in) / SHAO WEIFU (Autor:in) / LI WENYAN (Autor:in) / XU CHUNRONG (Autor:in) / YE ZHENGKAI (Autor:in)
30.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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