Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for slurry shield river channel
The invention discloses a construction method for a slurry shield riverway. The construction method comprises the steps of drilling an advanced drill hole by a drilling machine, preparing slurry, preparing a slurrying agent, grouting, reinforcing and testing, building a mud film by the slurrying agent, and opening a bin. The method has the beneficial effects that in-hole advanced reinforcement grouting is used, the defect that traditional grouting is limited by river water and the surrounding environment is overcome, a layer of protection body is formed above the tunnel face and the cutterhead, the stability of the tunnel face is guaranteed within a period of time, a stable operation environment is provided for tool changing operation, and the working efficiency is improved. Meanwhile, a novel material pulping agent is injected into the periphery of the shield and a soil bin to form a compact mud film with good air tightness on the tunnel face, it is guaranteed that underground water is prevented from flowing in during operation, the stability of the tunnel face is protected, and a set of practical and feasible scheme is provided for bin opening under the adverse conditions of the river bottom.
本发明公开了一种用于泥水盾构河道的施工方法，包括钻机钻设超前钻孔、配置浆液、配置制浆剂、注浆加固并测试、制浆剂建泥膜、开仓作业。本发明的有益效果是：使用洞内超前加固注浆，避免了传统注浆受河水和周边环境限制的弊端，在掌子面及刀盘上方形成一层保护体，在一段时间内保证掌子面的稳定，给换刀作业提供一个稳定的作业环境，同时使用新型材料制浆剂注入盾构周围和土仓在掌子面形成致密的具有良好气密性的泥膜，保证了作业时隔断地下水涌入、保护掌子面稳定，为河底不利条件下开仓提供了一套其实可行的方案。
Construction method for slurry shield river channel
The invention discloses a construction method for a slurry shield riverway. The construction method comprises the steps of drilling an advanced drill hole by a drilling machine, preparing slurry, preparing a slurrying agent, grouting, reinforcing and testing, building a mud film by the slurrying agent, and opening a bin. The method has the beneficial effects that in-hole advanced reinforcement grouting is used, the defect that traditional grouting is limited by river water and the surrounding environment is overcome, a layer of protection body is formed above the tunnel face and the cutterhead, the stability of the tunnel face is guaranteed within a period of time, a stable operation environment is provided for tool changing operation, and the working efficiency is improved. Meanwhile, a novel material pulping agent is injected into the periphery of the shield and a soil bin to form a compact mud film with good air tightness on the tunnel face, it is guaranteed that underground water is prevented from flowing in during operation, the stability of the tunnel face is protected, and a set of practical and feasible scheme is provided for bin opening under the adverse conditions of the river bottom.
本发明公开了一种用于泥水盾构河道的施工方法，包括钻机钻设超前钻孔、配置浆液、配置制浆剂、注浆加固并测试、制浆剂建泥膜、开仓作业。本发明的有益效果是：使用洞内超前加固注浆，避免了传统注浆受河水和周边环境限制的弊端，在掌子面及刀盘上方形成一层保护体，在一段时间内保证掌子面的稳定，给换刀作业提供一个稳定的作业环境，同时使用新型材料制浆剂注入盾构周围和土仓在掌子面形成致密的具有良好气密性的泥膜，保证了作业时隔断地下水涌入、保护掌子面稳定，为河底不利条件下开仓提供了一套其实可行的方案。
Construction method for slurry shield river channel
一种用于泥水盾构河道的施工方法
LAN FENGTAO (Autor:in) / HAN ZHEN (Autor:in) / GAO LIPING (Autor:in) / LIAO YOUGEN (Autor:in) / LIU GUANG (Autor:in) / GUO JIANBO (Autor:in) / YONG ZHENGDONG (Autor:in) / JIANG LONG (Autor:in) / LIU CHONG (Autor:in) / XING HONGZHEN (Autor:in)
13.05.2022
Patent
Elektronische Ressource
Chinesisch
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