A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Support-free shield muck pit construction method for subway station top plate
The invention provides an unsupported shield muck pit construction method for a subway station roof, which comprises the following steps of: S1, planning walking routes of an excavator and a muck truck after the station roof, a roof waterproof layer, a roof waterproof protective layer and the like within the range of the muck pit are all constructed; s2, a temporary protection cushion layer is constructed, and the pre-constructed n-shaped cover plate side wall joint bars and the temporary protection cushion layer are anchored; s3, reinforcing steel bar binding and formwork installation work of the side walls on the two sides of the n-shaped cover plate are conducted; then, a side wall is poured; s4, earthwork backfilling between the two side walls and n-shaped cover plate top face construction are conducted, and two muck pits are formed; and S5, pit edge retaining walls and two temporary partition walls of the two muck pits are constructed. A pipe culvert structure is formed on the structural top plate of the formed muck pit, the soil pressure in the excavation process of the muck pit can be resisted, and therefore the problem that in the prior art, excavation of an excavator is inconvenient due to the fact that an inner support is arranged is solved, and meanwhile the soil storage amount is effectively increased.
本发明提供了一种用于地铁车站顶板的无支撑盾构渣土坑施工方法，步骤如下：S1、待渣土坑范围内的车站顶板、顶板防水、顶板防水保护层等已全部施工完成，规划挖掘机和渣土车行走路线；S2、施做临时保护垫层，并将预施工“n”型盖板侧墙插筋与临时保护垫层锚固；S3、进行“n”型盖板两侧侧墙的钢筋绑扎、模板安装工作；接着，浇筑侧墙；S4、进行两侧墙间的土方回填以及“n”型盖板顶面施工，形成两个渣土坑；S5、进行两个渣土坑的坑边挡土墙以及两个临时隔墙施工。本发明形成的渣土坑在结构顶板上形成管涵结构，能够抵抗渣土坑出土过程中土体压力，从而避免现有技术因设置内支撑带来的挖机出土不便的问题，同时也有效提高了存土量。
Support-free shield muck pit construction method for subway station top plate
The invention provides an unsupported shield muck pit construction method for a subway station roof, which comprises the following steps of: S1, planning walking routes of an excavator and a muck truck after the station roof, a roof waterproof layer, a roof waterproof protective layer and the like within the range of the muck pit are all constructed; s2, a temporary protection cushion layer is constructed, and the pre-constructed n-shaped cover plate side wall joint bars and the temporary protection cushion layer are anchored; s3, reinforcing steel bar binding and formwork installation work of the side walls on the two sides of the n-shaped cover plate are conducted; then, a side wall is poured; s4, earthwork backfilling between the two side walls and n-shaped cover plate top face construction are conducted, and two muck pits are formed; and S5, pit edge retaining walls and two temporary partition walls of the two muck pits are constructed. A pipe culvert structure is formed on the structural top plate of the formed muck pit, the soil pressure in the excavation process of the muck pit can be resisted, and therefore the problem that in the prior art, excavation of an excavator is inconvenient due to the fact that an inner support is arranged is solved, and meanwhile the soil storage amount is effectively increased.
本发明提供了一种用于地铁车站顶板的无支撑盾构渣土坑施工方法，步骤如下：S1、待渣土坑范围内的车站顶板、顶板防水、顶板防水保护层等已全部施工完成，规划挖掘机和渣土车行走路线；S2、施做临时保护垫层，并将预施工“n”型盖板侧墙插筋与临时保护垫层锚固；S3、进行“n”型盖板两侧侧墙的钢筋绑扎、模板安装工作；接着，浇筑侧墙；S4、进行两侧墙间的土方回填以及“n”型盖板顶面施工，形成两个渣土坑；S5、进行两个渣土坑的坑边挡土墙以及两个临时隔墙施工。本发明形成的渣土坑在结构顶板上形成管涵结构，能够抵抗渣土坑出土过程中土体压力，从而避免现有技术因设置内支撑带来的挖机出土不便的问题，同时也有效提高了存土量。
Support-free shield muck pit construction method for subway station top plate
一种用于地铁车站顶板的无支撑盾构渣土坑施工方法
2023-01-13
Patent
Electronic Resource
Chinese
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