Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-sliding reinforcing method for side slope of tunnel portal in thick landslide mass stratum
The invention relates to the technical field of underground engineering, in particular to a thick landslide mass stratum tunnel portal side slope anti-sliding reinforcing method which is achieved through the following steps that firstly, slope cutting treatment is conducted on a mountain where a pre-excavated tunnel is located; secondly, anchor cable slide-resistant piles are arranged at the treatment positions of the sliding points on the upper portion and the lower portion of the pre-excavated tunnel; thirdly, a side slope protection body structure is arranged on the side slope extending to the upper and lower slip point treatment positions with the pre-excavated tunnel as the center; fourthly, a tunnel pipe shed is constructed, and a tunnel is excavated; fifthly, grouting is conducted from the tunnel portal to the periphery of the tunnel within the design range through the grouting holes to complete reinforcement of the miniature steel pipe piles and reinforcement of the radial grouting pipes; and 6, after internal and external reinforcement of the tunnel portal is completed, tunnel excavation work continues to be carried out. According to the scheme, sliding deformation of the tunnel portal slope under the action of an external load can be effectively controlled, tunnel portal construction safety is guaranteed, and tunnel construction efficiency is improved; the overall reinforcement of the side slope and the local key anti-sliding capability enhancement are realized.
本发明涉及地下工程技术领域，具体涉及一种厚滑坡体地层隧道洞口边坡抗滑移加固方法，通过以下步骤实现：步骤一、对预开挖隧道的所在山体削坡处理；步骤二、在预开挖隧道上下处的滑移点治理位置布设锚索抗滑桩；步骤三、以预开挖的隧道为中心延伸至上下处滑移点治理位置的边坡布设边坡护体结构；步骤四、进行隧道管棚施作，开挖隧道；步骤五、自隧道洞口至设计范围内隧道的周围通过注浆孔注浆完成微型钢管桩加固和径向注浆管加固；步骤六、隧道洞口内外加固完成后，继续开展隧道开挖工作。本方案能够有效控制隧道洞口边坡在外荷载作用下滑移变形，保证隧道洞口施工安全，提高隧道施工效率；实现了边坡整体加固与局部重点抗滑能力增强。
Anti-sliding reinforcing method for side slope of tunnel portal in thick landslide mass stratum
The invention relates to the technical field of underground engineering, in particular to a thick landslide mass stratum tunnel portal side slope anti-sliding reinforcing method which is achieved through the following steps that firstly, slope cutting treatment is conducted on a mountain where a pre-excavated tunnel is located; secondly, anchor cable slide-resistant piles are arranged at the treatment positions of the sliding points on the upper portion and the lower portion of the pre-excavated tunnel; thirdly, a side slope protection body structure is arranged on the side slope extending to the upper and lower slip point treatment positions with the pre-excavated tunnel as the center; fourthly, a tunnel pipe shed is constructed, and a tunnel is excavated; fifthly, grouting is conducted from the tunnel portal to the periphery of the tunnel within the design range through the grouting holes to complete reinforcement of the miniature steel pipe piles and reinforcement of the radial grouting pipes; and 6, after internal and external reinforcement of the tunnel portal is completed, tunnel excavation work continues to be carried out. According to the scheme, sliding deformation of the tunnel portal slope under the action of an external load can be effectively controlled, tunnel portal construction safety is guaranteed, and tunnel construction efficiency is improved; the overall reinforcement of the side slope and the local key anti-sliding capability enhancement are realized.
本发明涉及地下工程技术领域，具体涉及一种厚滑坡体地层隧道洞口边坡抗滑移加固方法，通过以下步骤实现：步骤一、对预开挖隧道的所在山体削坡处理；步骤二、在预开挖隧道上下处的滑移点治理位置布设锚索抗滑桩；步骤三、以预开挖的隧道为中心延伸至上下处滑移点治理位置的边坡布设边坡护体结构；步骤四、进行隧道管棚施作，开挖隧道；步骤五、自隧道洞口至设计范围内隧道的周围通过注浆孔注浆完成微型钢管桩加固和径向注浆管加固；步骤六、隧道洞口内外加固完成后，继续开展隧道开挖工作。本方案能够有效控制隧道洞口边坡在外荷载作用下滑移变形，保证隧道洞口施工安全，提高隧道施工效率；实现了边坡整体加固与局部重点抗滑能力增强。
Anti-sliding reinforcing method for side slope of tunnel portal in thick landslide mass stratum
厚滑坡体地层隧道洞口边坡抗滑移加固方法
LI SHUAI ( Autor:in ) / ZHANG HANFEI ( Autor:in ) / XIA ZENGXUAN ( Autor:in ) / LI XUEFEI ( Autor:in ) / CUI YUQIAO ( Autor:in ) / YAN YONGJIANG ( Autor:in ) / LI BENPENG ( Autor:in ) / LOU WENJIE ( Autor:in ) / LIU SHAN ( Autor:in ) / WANG JIAN ( Autor:in ) ... [mehr]
01.03.2024
Patent
Elektronische Ressource
Chinesisch
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