Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel sheet pile high-pressure water flushing auxiliary piling and pile pulling synchronous grouting construction method
The invention discloses a steel sheet pile high-pressure water flushing auxiliary piling and pile pulling synchronous grouting construction method, and relates to the field of piling. When a steel sheet pile is driven, a steel sheet pile steel pipe is connected with a high-pressure water pump, the high-pressure water pump is started while the steel sheet pile is driven, so that a high-pressure water curtain is formed at the bottom of the steel sheet pile, a soil layer is cut under the dual action of a high-frequency hydraulic vibration hammer and high-pressure water, the steel sheet pile is driven into the designed elevation in a high-efficiency and low-vibration mode, a steel sheet pile cofferdam support is formed, after foundation pit construction is completed, when the steel sheet pile is pulled, pile pulling can be achieved while grouting is conducted through connection of a grouting machine and steel pipes on a novel Larsen steel sheet pile, gaps generated after the steel sheet piles are pulled out are synchronously filled, under the lubricating effect of high-pressure cement paste, the soil carrying effect during pile pulling can be effectively relieved, stratum displacement is reduced, meanwhile, the cement paste can fill cracks, generated due to early-stage displacement, of stratum around a foundation pit under the high-pressure effect, and the stratum reinforcing effect is achieved.
本发明公开了钢板桩高压水冲辅助打桩与拔桩同步注浆施工工法，涉及打桩领域，在钢板桩打入时，钢板桩钢管与高压水泵连接，在打入钢板桩的同时开动高压水泵，使钢板桩底部形成高压水幕，在高频液压振动锤与高压水双重作用下切割土层，高效低振动的将钢板桩打入设计标高，形成钢板桩围堰支护，基坑施工完成后，在钢板桩拔桩时，通过注浆机与新型拉森钢板桩上的钢管的连接，可以实现边拔桩边注浆，同步填充由钢板桩拔除后产生的空隙，且在高压水泥浆的润滑作用下，可以有效减轻拔桩时的带土效应，降低地层位移，同时水泥浆在高压作用下可以填充基坑周边地层由于前期位移而产生的裂隙，起到加固地层的效果。
Steel sheet pile high-pressure water flushing auxiliary piling and pile pulling synchronous grouting construction method
The invention discloses a steel sheet pile high-pressure water flushing auxiliary piling and pile pulling synchronous grouting construction method, and relates to the field of piling. When a steel sheet pile is driven, a steel sheet pile steel pipe is connected with a high-pressure water pump, the high-pressure water pump is started while the steel sheet pile is driven, so that a high-pressure water curtain is formed at the bottom of the steel sheet pile, a soil layer is cut under the dual action of a high-frequency hydraulic vibration hammer and high-pressure water, the steel sheet pile is driven into the designed elevation in a high-efficiency and low-vibration mode, a steel sheet pile cofferdam support is formed, after foundation pit construction is completed, when the steel sheet pile is pulled, pile pulling can be achieved while grouting is conducted through connection of a grouting machine and steel pipes on a novel Larsen steel sheet pile, gaps generated after the steel sheet piles are pulled out are synchronously filled, under the lubricating effect of high-pressure cement paste, the soil carrying effect during pile pulling can be effectively relieved, stratum displacement is reduced, meanwhile, the cement paste can fill cracks, generated due to early-stage displacement, of stratum around a foundation pit under the high-pressure effect, and the stratum reinforcing effect is achieved.
本发明公开了钢板桩高压水冲辅助打桩与拔桩同步注浆施工工法，涉及打桩领域，在钢板桩打入时，钢板桩钢管与高压水泵连接，在打入钢板桩的同时开动高压水泵，使钢板桩底部形成高压水幕，在高频液压振动锤与高压水双重作用下切割土层，高效低振动的将钢板桩打入设计标高，形成钢板桩围堰支护，基坑施工完成后，在钢板桩拔桩时，通过注浆机与新型拉森钢板桩上的钢管的连接，可以实现边拔桩边注浆，同步填充由钢板桩拔除后产生的空隙，且在高压水泥浆的润滑作用下，可以有效减轻拔桩时的带土效应，降低地层位移，同时水泥浆在高压作用下可以填充基坑周边地层由于前期位移而产生的裂隙，起到加固地层的效果。
Steel sheet pile high-pressure water flushing auxiliary piling and pile pulling synchronous grouting construction method
钢板桩高压水冲辅助打桩与拔桩同步注浆施工工法
JIANG XIAOXIN (Autor:in) / SONG DELIN (Autor:in) / JI YIXIN (Autor:in) / DU FATAO (Autor:in) / OU WANLI (Autor:in)
03.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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