Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cast-in-place box culvert foundation pit construction method
The invention discloses a cast-in-place box culvert foundation pit construction method, which belongs to the field of cast-in-place box culvert construction, and comprises the following steps that a construction area is leveled, the height of a stacked object within a range of 3 meters away from the edge of a foundation pit is not more than 1.5 meters, an intercepting ditch is arranged outside the foundation pit, and the gradient of a side slope outside the foundation pit is controlled; first steel sheet piles are driven to form a water retaining cofferdam outside the foundation pit; then, second steel sheet piles are driven along the foundation pit; the foundation pit is excavated to the elevation in a layered mode, and each layer is excavated, one layer of inner support construction support is correspondingly arranged; a foundation cushion layer is arranged at the bottom of the foundation pit, then cast-in-place box culvert operation is conducted, a cast-in-place box culvert is divided into an upper layer and a lower layer, after lower layer pouring is completed, partial backfilling is conducted, a corresponding layer support is dismantled, and then upper layer pouring operation is conducted; and after pouring is completed, backfilling is conducted layer by layer, supports are dismantled layer by layer, and finally the first steel sheet piles and the second steel sheet piles are dismantled. According to the construction method, the construction safety can be improved, and the construction efficiency is improved.
本发明公开了一种现浇箱涵基坑施工方法，属于现浇箱涵施工领域，包括：将施工区域平整处理，离基坑边3米范围内堆载物的高度不超过1.5米，并在基坑外设置截水沟，以及对基坑外边坡坡度进行控制；施打第一钢板桩形成基坑外部的挡水围堰；然后沿基坑施打第二钢板桩；基坑分层开挖至标高，每挖一层，对应设置一层内撑构建支护；在基坑底部设置基础垫层，然后进行现浇箱涵作业，现浇箱涵分上下两层，下层浇筑完成后，部分回填，拆除对应层支护，然后进行上层浇筑作业；完成浇筑后，逐层回填，逐层拆除支护，最后拆除第一钢板桩和第二钢板桩。本发明的施工方法可以提高施工安全性，提高施工效率。
Cast-in-place box culvert foundation pit construction method
The invention discloses a cast-in-place box culvert foundation pit construction method, which belongs to the field of cast-in-place box culvert construction, and comprises the following steps that a construction area is leveled, the height of a stacked object within a range of 3 meters away from the edge of a foundation pit is not more than 1.5 meters, an intercepting ditch is arranged outside the foundation pit, and the gradient of a side slope outside the foundation pit is controlled; first steel sheet piles are driven to form a water retaining cofferdam outside the foundation pit; then, second steel sheet piles are driven along the foundation pit; the foundation pit is excavated to the elevation in a layered mode, and each layer is excavated, one layer of inner support construction support is correspondingly arranged; a foundation cushion layer is arranged at the bottom of the foundation pit, then cast-in-place box culvert operation is conducted, a cast-in-place box culvert is divided into an upper layer and a lower layer, after lower layer pouring is completed, partial backfilling is conducted, a corresponding layer support is dismantled, and then upper layer pouring operation is conducted; and after pouring is completed, backfilling is conducted layer by layer, supports are dismantled layer by layer, and finally the first steel sheet piles and the second steel sheet piles are dismantled. According to the construction method, the construction safety can be improved, and the construction efficiency is improved.
本发明公开了一种现浇箱涵基坑施工方法，属于现浇箱涵施工领域，包括：将施工区域平整处理，离基坑边3米范围内堆载物的高度不超过1.5米，并在基坑外设置截水沟，以及对基坑外边坡坡度进行控制；施打第一钢板桩形成基坑外部的挡水围堰；然后沿基坑施打第二钢板桩；基坑分层开挖至标高，每挖一层，对应设置一层内撑构建支护；在基坑底部设置基础垫层，然后进行现浇箱涵作业，现浇箱涵分上下两层，下层浇筑完成后，部分回填，拆除对应层支护，然后进行上层浇筑作业；完成浇筑后，逐层回填，逐层拆除支护，最后拆除第一钢板桩和第二钢板桩。本发明的施工方法可以提高施工安全性，提高施工效率。
Cast-in-place box culvert foundation pit construction method
现浇箱涵基坑施工方法
ZHANG XIAOQIANG (Autor:in)
09.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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