Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Urban shallow-buried and underground-excavated tunnel oblique groove-pulling rapid hole-entering construction method
The invention discloses an urban shallow-buried excavation tunnel inclined pull groove rapid hole entering construction method which comprises the steps that S1, foundation pit excavation and supporting construction of an inlet section of a shallow-buried excavation tunnel are conducted while open excavation section construction is conducted, S2, after foundation pit excavation and supporting are completed, arch cover construction and backfilling are conducted, and S3, construction and construction are conducted. S3, inclined groove pulling construction is conducted on the side edge of the plane of the inlet section of the shallow-buried excavation tunnel till the bottom position of an upper step of tunnel main line construction is reached, S4, excavation is conducted on an underground excavation tunnel portal through a step method, and excavation is conducted downwards layer by layer till an arch frame falls to the bottom and is closed to form a ring; according to the urban shallow-buried and underground-excavated tunnel inclined groove pulling rapid hole entering construction method, the problems that in the prior art, the construction progress is slow, large risks of tunnel collapse, roof collapse and large deformation exist in an ultra-shallow-buried section of a shallow-buried and underground-excavated inlet, strong advance supports and temporary supports need to be arranged, and the construction cost is also increased are solved.
本发明公开了一种城市浅埋暗挖隧道斜向拉槽快速进洞施工方法，所述方法步骤包括S1：在明挖区段施工的同时，进行浅埋暗挖隧道进口段的基坑开挖及支护施工，S2：基坑开挖支护完成后，进行拱盖施作并回填，S3：在浅埋暗挖隧道进口段平面侧边斜向拉槽施工，直至达到隧道正线施工上台阶底部位置，S4：暗挖隧道洞口进行台阶法开挖，逐层向下开挖至拱架落底封闭成环；该城市浅埋暗挖隧道斜向拉槽快速进洞施工方法，解决了现有技术不仅施工进度缓慢，且在浅埋暗挖进口超浅埋段存在较大的隧道塌方、冒顶及大变形的风险，需要设置强力的超前支护和临时支撑，也增加了施工成本的问题。
Urban shallow-buried and underground-excavated tunnel oblique groove-pulling rapid hole-entering construction method
The invention discloses an urban shallow-buried excavation tunnel inclined pull groove rapid hole entering construction method which comprises the steps that S1, foundation pit excavation and supporting construction of an inlet section of a shallow-buried excavation tunnel are conducted while open excavation section construction is conducted, S2, after foundation pit excavation and supporting are completed, arch cover construction and backfilling are conducted, and S3, construction and construction are conducted. S3, inclined groove pulling construction is conducted on the side edge of the plane of the inlet section of the shallow-buried excavation tunnel till the bottom position of an upper step of tunnel main line construction is reached, S4, excavation is conducted on an underground excavation tunnel portal through a step method, and excavation is conducted downwards layer by layer till an arch frame falls to the bottom and is closed to form a ring; according to the urban shallow-buried and underground-excavated tunnel inclined groove pulling rapid hole entering construction method, the problems that in the prior art, the construction progress is slow, large risks of tunnel collapse, roof collapse and large deformation exist in an ultra-shallow-buried section of a shallow-buried and underground-excavated inlet, strong advance supports and temporary supports need to be arranged, and the construction cost is also increased are solved.
本发明公开了一种城市浅埋暗挖隧道斜向拉槽快速进洞施工方法，所述方法步骤包括S1：在明挖区段施工的同时，进行浅埋暗挖隧道进口段的基坑开挖及支护施工，S2：基坑开挖支护完成后，进行拱盖施作并回填，S3：在浅埋暗挖隧道进口段平面侧边斜向拉槽施工，直至达到隧道正线施工上台阶底部位置，S4：暗挖隧道洞口进行台阶法开挖，逐层向下开挖至拱架落底封闭成环；该城市浅埋暗挖隧道斜向拉槽快速进洞施工方法，解决了现有技术不仅施工进度缓慢，且在浅埋暗挖进口超浅埋段存在较大的隧道塌方、冒顶及大变形的风险，需要设置强力的超前支护和临时支撑，也增加了施工成本的问题。
Urban shallow-buried and underground-excavated tunnel oblique groove-pulling rapid hole-entering construction method
一种城市浅埋暗挖隧道斜向拉槽快速进洞施工方法
WANG KEYI (Autor:in) / XU HUASHENG (Autor:in) / LIU AIWU (Autor:in) / WANG HAOMING (Autor:in) / LYU XIAOXIAO (Autor:in) / CHEN GUANG (Autor:in) / WANG YONG (Autor:in) / YAO DACHUANG (Autor:in) / LIN XIANMING (Autor:in) / LI YAOFEI (Autor:in)
22.10.2024
Patent
Elektronische Ressource
Chinesisch
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