Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shield starting end reinforcing structure and shield tunneling machine starting method
The invention provides a shield starting end reinforcing structure and a shield tunneling machine starting method. The shield starting end reinforcing structure comprises a reinforcing area, a freezing area, a diaphragm wall, a tunnel portal steel ring and a short sleeve box which are sequentially arranged from inside to outside, wherein the freezing area is located at the junction of the reinforcing area and the diaphragm wall, the freezing area is constructed by adopting a vertical freezing method, the tunnel portal steel ring is arranged on the diaphragm wall, the short sleeve box is located on the outer side of the tunnel portal steel ring and is connected with the tunnel portal steel ring, and at least one shield tail steel wire brush is arranged on the inner wall of each of the short sleeve box and the tunnel portal steel ring. By combining the vertical freezing and the short sleeve pipe and the at least two shield tail steel wire brushes to form the shield starting end reinforcing structure, the risks of water burst, sand burst, road surface collapse and the like which are easily caused before a shield tunneling machine starts and in the starting and tunnel entering process are effectively reduced, the shield starting end reinforcing structure can be suitable for different construction environments, and the defects of an existing shield tunnel portal waterproof device in universality and compatibility are overcome.
本发明提供了一种盾构始发端头加固结构及盾构机始发方法，所述盾构始发端头加固结构包括由内向外依次设置的加固区、冻结区、地连墙、洞门钢环及短套箱，所述冻结区位于所述加固区与所述地连墙的交界处，且所述冻结区采用垂直冻结法施工而成，所述洞门钢环设置于所述地连墙上，所述短套箱位于所述洞门钢环的外侧且与洞门钢环连接，所述短套箱及所述洞门钢环的内壁上均设置有至少一道盾尾钢丝刷。通过结合垂直冻结加短套管以及至少两道盾尾钢丝刷形成的盾构始发端头加固结构，有效降低了盾构机始发前及始发进洞过程中易发生涌水涌沙、路面塌方等风险，且能适用不同的施工环境，克服了现有的盾构洞门防水装置在通用性及兼容性上的不足。
Shield starting end reinforcing structure and shield tunneling machine starting method
The invention provides a shield starting end reinforcing structure and a shield tunneling machine starting method. The shield starting end reinforcing structure comprises a reinforcing area, a freezing area, a diaphragm wall, a tunnel portal steel ring and a short sleeve box which are sequentially arranged from inside to outside, wherein the freezing area is located at the junction of the reinforcing area and the diaphragm wall, the freezing area is constructed by adopting a vertical freezing method, the tunnel portal steel ring is arranged on the diaphragm wall, the short sleeve box is located on the outer side of the tunnel portal steel ring and is connected with the tunnel portal steel ring, and at least one shield tail steel wire brush is arranged on the inner wall of each of the short sleeve box and the tunnel portal steel ring. By combining the vertical freezing and the short sleeve pipe and the at least two shield tail steel wire brushes to form the shield starting end reinforcing structure, the risks of water burst, sand burst, road surface collapse and the like which are easily caused before a shield tunneling machine starts and in the starting and tunnel entering process are effectively reduced, the shield starting end reinforcing structure can be suitable for different construction environments, and the defects of an existing shield tunnel portal waterproof device in universality and compatibility are overcome.
本发明提供了一种盾构始发端头加固结构及盾构机始发方法，所述盾构始发端头加固结构包括由内向外依次设置的加固区、冻结区、地连墙、洞门钢环及短套箱，所述冻结区位于所述加固区与所述地连墙的交界处，且所述冻结区采用垂直冻结法施工而成，所述洞门钢环设置于所述地连墙上，所述短套箱位于所述洞门钢环的外侧且与洞门钢环连接，所述短套箱及所述洞门钢环的内壁上均设置有至少一道盾尾钢丝刷。通过结合垂直冻结加短套管以及至少两道盾尾钢丝刷形成的盾构始发端头加固结构，有效降低了盾构机始发前及始发进洞过程中易发生涌水涌沙、路面塌方等风险，且能适用不同的施工环境，克服了现有的盾构洞门防水装置在通用性及兼容性上的不足。
Shield starting end reinforcing structure and shield tunneling machine starting method
盾构始发端头加固结构及盾构机始发方法
GU LONGQIANG (Autor:in) / ZHANG CHENGDONG (Autor:in) / ZENG HUI (Autor:in) / LIU HONGYUE (Autor:in) / WU HAOTIAN (Autor:in) / WANG BIN (Autor:in) / GU JIE (Autor:in) / XU XIAOFENG (Autor:in) / WU WEIHUA (Autor:in)
31.08.2021
Patent
Elektronische Ressource
Chinesisch
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