A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shield under-pressure bin opening method for highly breathable water-permeable stratum
The invention relates to the field of building construction, and provides a shield under-pressure bin opening method for a highly breathable water-permeable stratum. The shield under-pressure bin opening method comprises the following steps of mixing according to a specific mixing ratio to obtain a mixed slurry, and injecting the mixture into a soil bin of a shield tunneling machine according to acertain process flow, a pressure maintaining mud film with certain thickness, strength, waterproofness and durability is formed on the outer wall of the shield body and in front of the excavation face of the shield, then a pressure maintaining system is started, and composite clay in a bin is gradually removed until personnel can enter the bin conveniently. The method can effectively improve thesafety, stability, durability and economy of bin opening and pressure maintaining of the shield under pressure in a highly breathable and permeable stratum and a sensitive ground surface environment,and has high popularization and application value in a shield tunnel engineering.
本发明涉及建筑施工领域，提供了一种用于强透气透水地层的盾构带压开仓方法，该方法按特定配合比拌制成混合浆液，并按照一定的工艺流程，将拌制物注入到盾构机土仓，使盾体外壁和盾构开挖掌子面前方形成有一定厚度、强度、防水性、持久性的保压泥膜，然后开启保压系统，逐步排除仓内复合黏土至便于人员进仓作业为止。本发明能有效提高在强透气透水地层和敏感地表环境下，盾构带压开仓保压的安全、稳定、持久且经济，在盾构隧道工程中具有较高的推广应用价值。
Shield under-pressure bin opening method for highly breathable water-permeable stratum
The invention relates to the field of building construction, and provides a shield under-pressure bin opening method for a highly breathable water-permeable stratum. The shield under-pressure bin opening method comprises the following steps of mixing according to a specific mixing ratio to obtain a mixed slurry, and injecting the mixture into a soil bin of a shield tunneling machine according to acertain process flow, a pressure maintaining mud film with certain thickness, strength, waterproofness and durability is formed on the outer wall of the shield body and in front of the excavation face of the shield, then a pressure maintaining system is started, and composite clay in a bin is gradually removed until personnel can enter the bin conveniently. The method can effectively improve thesafety, stability, durability and economy of bin opening and pressure maintaining of the shield under pressure in a highly breathable and permeable stratum and a sensitive ground surface environment,and has high popularization and application value in a shield tunnel engineering.
本发明涉及建筑施工领域，提供了一种用于强透气透水地层的盾构带压开仓方法，该方法按特定配合比拌制成混合浆液，并按照一定的工艺流程，将拌制物注入到盾构机土仓，使盾体外壁和盾构开挖掌子面前方形成有一定厚度、强度、防水性、持久性的保压泥膜，然后开启保压系统，逐步排除仓内复合黏土至便于人员进仓作业为止。本发明能有效提高在强透气透水地层和敏感地表环境下，盾构带压开仓保压的安全、稳定、持久且经济，在盾构隧道工程中具有较高的推广应用价值。
Shield under-pressure bin opening method for highly breathable water-permeable stratum
一种用于强透气透水地层的盾构带压开仓方法
XIA TONGFEI (author) / JIN PING (author) / ZHAO SHUANGGEN (author) / LIANG CHAO (author) / LU YUE (author) / WANG SHENGTAO (author) / YANG ZHONGJIE (author) / ZHAO XING (author) / ZHAO ZHIXIANG (author) / ZHANG QIAO (author)
2020-06-19
Patent
Electronic Resource
Chinese
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