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Excavation construction method for high cutting adjacent to railway business line and safety protection system
The invention relates to a high cutting excavation construction method adjacent to a railway business line and a safety protection system. The high cutting excavation construction method comprises the following steps that firstly, surface cleaning is conducted on a mountain in a skylight point on the left side of a construction line, and groove broaching and partition wall reserving construction is conducted; secondly, the remaining cones are excavated manually, and the active protective net is dismantled; thirdly, a groove is excavated, remaining cones are crushed, a protective net is dismantled in a layered mode, excavation is conducted circularly to a supporting and retaining structure platform, and then a protective pile structure is constructed; step 4, after the construction of the protective piles is completed, the groove-pulling reserved partition wall is continuously excavated to the top of the surface layer of the foundation bed, and then a side ditch is constructed; 5, left side beveling is conducted on a line right side contact net rod in the skylight point; sixthly, the right mountain is excavated to the top of the foundation bed layer by layer in sequence according to the left excavation depth; and step 7, circularly slotting, excavating to the bottom of the surface layer of the subgrade bed, and constructing a slope protection project according to the slope of 1: 1.25. The method is of great significance in improving the construction efficiency and reducing the safety risk.
本发明的一种邻近铁路营业线高路堑开挖施工方法及安全防护系统，包括如下步骤：步骤一、在施工线路左侧，天窗点内对山体清表，进行拉槽预留隔墙施工；步骤二、人工开挖剩余锥体，并拆除主动防护网；步骤三、开挖凹槽，剩余锥体进行破碎，分层拆除防护网，循环开挖至支挡结构平台，然后施工防护桩结构；步骤四、防护桩施工完成后，对剩余山体继续拉槽预留隔墙开挖，开挖至基床表层顶，然后施工侧沟；步骤五、天窗点内对线路右侧接触网杆进行左侧倒边；步骤六、对右侧山体按照左侧开挖深度，并顺序逐层开挖至基床顶；步骤七、循环开槽，开挖至路基基床表层底，边坡按照1:1.25施工边坡防护工程。本发明对于提高施工效率、降低安全风险具有重要意义。
Excavation construction method for high cutting adjacent to railway business line and safety protection system
The invention relates to a high cutting excavation construction method adjacent to a railway business line and a safety protection system. The high cutting excavation construction method comprises the following steps that firstly, surface cleaning is conducted on a mountain in a skylight point on the left side of a construction line, and groove broaching and partition wall reserving construction is conducted; secondly, the remaining cones are excavated manually, and the active protective net is dismantled; thirdly, a groove is excavated, remaining cones are crushed, a protective net is dismantled in a layered mode, excavation is conducted circularly to a supporting and retaining structure platform, and then a protective pile structure is constructed; step 4, after the construction of the protective piles is completed, the groove-pulling reserved partition wall is continuously excavated to the top of the surface layer of the foundation bed, and then a side ditch is constructed; 5, left side beveling is conducted on a line right side contact net rod in the skylight point; sixthly, the right mountain is excavated to the top of the foundation bed layer by layer in sequence according to the left excavation depth; and step 7, circularly slotting, excavating to the bottom of the surface layer of the subgrade bed, and constructing a slope protection project according to the slope of 1: 1.25. The method is of great significance in improving the construction efficiency and reducing the safety risk.
本发明的一种邻近铁路营业线高路堑开挖施工方法及安全防护系统，包括如下步骤：步骤一、在施工线路左侧，天窗点内对山体清表，进行拉槽预留隔墙施工；步骤二、人工开挖剩余锥体，并拆除主动防护网；步骤三、开挖凹槽，剩余锥体进行破碎，分层拆除防护网，循环开挖至支挡结构平台，然后施工防护桩结构；步骤四、防护桩施工完成后，对剩余山体继续拉槽预留隔墙开挖，开挖至基床表层顶，然后施工侧沟；步骤五、天窗点内对线路右侧接触网杆进行左侧倒边；步骤六、对右侧山体按照左侧开挖深度，并顺序逐层开挖至基床顶；步骤七、循环开槽，开挖至路基基床表层底，边坡按照1:1.25施工边坡防护工程。本发明对于提高施工效率、降低安全风险具有重要意义。
Excavation construction method for high cutting adjacent to railway business line and safety protection system
一种邻近铁路营业线高路堑开挖施工方法及安全防护系统
HAN JIALEI (author) / YANG JIWU (author) / WANG TAO (author) / CUI FUPING (author) / LI YIMENG (author) / WANG YANFEI (author) / WANG BEIZHAN (author) / LI XIAOXI (author)
2024-01-23
Patent
Electronic Resource
Chinese
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