A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Existing underground passage widening process
The invention discloses an existing underground passage widening process. The process comprises the following steps: S1, delimiting a boundary of a new underground passage and an old underground passage; s2, foundation pit supports are arranged in the new and old tunnel boundary and the new underground passage setting side boundary, foundation pit excavation is conducted, an existing passage is reserved in the excavation process, an old deformation joint at the new and old tunnel boundary is broken, and the existing passage is separated from an existing underground passage body; s3, the foundation pit is leveled, and the bottom of the foundation pit is leveled to form a sliding way; s4, pushing equipment is arranged in the foundation pit, and the existing channel is pushed to the new underground channel setting side boundary along the slide way; s5, adding a standard section between the existing channel main body structure and the pushed existing channel, and constructing a new deformation joint; and S6, foundation pit backfilling is conducted, concrete is poured between the standard section and the existing underground passage body to form a new underground passage body, foundation pit backfilling is conducted, and the temporary retaining wall and the foundation pit support are removed. The existing channel can be utilized to the maximum extent, the construction cost is reduced, and the structure construction progress is effectively accelerated.
本发明一种既有地下通道拓宽工艺，包括以下步骤：S1.划定新旧地下通道分界线；S2.在新旧地道分界线与新的地下通道设置边线内设置基坑支护并进行基坑开挖，开挖的过程中保留既有通道，破除新旧地道分界线处的旧的变形缝，使既有通道与既有地下通道主体分离；S3.整平基坑，将基坑底部整平形成滑道；S4.在基坑内设置顶推设备，将既有通道沿滑道顶推至新地下通道设置边线处；S5.在既有通道主体结构与顶推后的既有通道之间增加标准段，施工新的变形缝；S6.基坑回填，在标准段与既有地下通道主体之间浇筑混凝土形成新的地下通道主体，基坑回填，移除临时挡墙和基坑支护。本发明可以最大化利用既有通道，降低施工成本，有效加快结构施工进度。
Existing underground passage widening process
The invention discloses an existing underground passage widening process. The process comprises the following steps: S1, delimiting a boundary of a new underground passage and an old underground passage; s2, foundation pit supports are arranged in the new and old tunnel boundary and the new underground passage setting side boundary, foundation pit excavation is conducted, an existing passage is reserved in the excavation process, an old deformation joint at the new and old tunnel boundary is broken, and the existing passage is separated from an existing underground passage body; s3, the foundation pit is leveled, and the bottom of the foundation pit is leveled to form a sliding way; s4, pushing equipment is arranged in the foundation pit, and the existing channel is pushed to the new underground channel setting side boundary along the slide way; s5, adding a standard section between the existing channel main body structure and the pushed existing channel, and constructing a new deformation joint; and S6, foundation pit backfilling is conducted, concrete is poured between the standard section and the existing underground passage body to form a new underground passage body, foundation pit backfilling is conducted, and the temporary retaining wall and the foundation pit support are removed. The existing channel can be utilized to the maximum extent, the construction cost is reduced, and the structure construction progress is effectively accelerated.
本发明一种既有地下通道拓宽工艺，包括以下步骤：S1.划定新旧地下通道分界线；S2.在新旧地道分界线与新的地下通道设置边线内设置基坑支护并进行基坑开挖，开挖的过程中保留既有通道，破除新旧地道分界线处的旧的变形缝，使既有通道与既有地下通道主体分离；S3.整平基坑，将基坑底部整平形成滑道；S4.在基坑内设置顶推设备，将既有通道沿滑道顶推至新地下通道设置边线处；S5.在既有通道主体结构与顶推后的既有通道之间增加标准段，施工新的变形缝；S6.基坑回填，在标准段与既有地下通道主体之间浇筑混凝土形成新的地下通道主体，基坑回填，移除临时挡墙和基坑支护。本发明可以最大化利用既有通道，降低施工成本，有效加快结构施工进度。
Existing underground passage widening process
一种既有地下通道拓宽工艺
CHEN DAHAN (author) / ZHENG JIANDONG (author) / GAO QINGFENG (author) / HU YUAN (author) / CHEN DIXIN (author) / LIAN WEIMIN (author) / HE XUANQING (author) / MAO ZHONGPENG (author) / LIN ZIXIONG (author) / ZHENG ZHOU (author)
2022-06-03
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Engineering Index Backfile | 1919
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