A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cover-excavation top-down construction method for underground structure
The invention discloses a construction method for cover-excavation top-down construction of an underground structure. The construction method comprises the steps that an enclosure wall is constructed; upper-layer steel bars are constructed and poured to form an upper-layer plate, and the upper-layer plate is erected on the enclosure walls on the two sides; excavating to the elevation of a lower-layer plate, and constructing side wall steel bars and connecting the side wall steel bars with upper-layer steel bars; lower-layer steel bars are constructed and connected with the side wall steel bars, and a lower-layer plate is formed through pouring; and pouring side wall steel bars to form the side wall. As the lower-layer steel bars are connected with the side wall steel bars, before the lower-layer plate is formed through pouring, the side wall steel bars are firstly constructed and connected with the upper-layer steel bars, and then the side wall steel bars are poured to form the side wall, the situation that upper and lower joints of the side wall steel bars cannot be aligned due to traditional cover-excavation top-down construction is avoided, and the supporting effect of the side wall steel bars is improved; reliability of side wall steel bar connection is improved, and then structural engineering quality is improved.
本申请公开了一种地下结构盖挖逆作的施工方法，包括：施做围护墙；施做上层钢筋并浇筑形成上层板，上层板架设于两侧的围护墙上；开挖至下层板标高，施做侧墙钢筋并与上层钢筋连接；施做下层钢筋，并与侧墙钢筋连接，浇筑形成下层板；浇筑侧墙钢筋形成侧墙。由于施做下层钢筋与侧墙钢筋连接，浇筑形成下层板之前，先施做侧墙钢筋并与上层钢筋连接，其后续再进行浇筑侧墙钢筋形成侧墙，从而避免传统盖挖逆作施工导致侧墙钢筋上、下接头无法对齐，提高侧墙钢筋的支撑效果，提高侧墙钢筋连接的可靠性，进而提高结构工程质量。
Cover-excavation top-down construction method for underground structure
The invention discloses a construction method for cover-excavation top-down construction of an underground structure. The construction method comprises the steps that an enclosure wall is constructed; upper-layer steel bars are constructed and poured to form an upper-layer plate, and the upper-layer plate is erected on the enclosure walls on the two sides; excavating to the elevation of a lower-layer plate, and constructing side wall steel bars and connecting the side wall steel bars with upper-layer steel bars; lower-layer steel bars are constructed and connected with the side wall steel bars, and a lower-layer plate is formed through pouring; and pouring side wall steel bars to form the side wall. As the lower-layer steel bars are connected with the side wall steel bars, before the lower-layer plate is formed through pouring, the side wall steel bars are firstly constructed and connected with the upper-layer steel bars, and then the side wall steel bars are poured to form the side wall, the situation that upper and lower joints of the side wall steel bars cannot be aligned due to traditional cover-excavation top-down construction is avoided, and the supporting effect of the side wall steel bars is improved; reliability of side wall steel bar connection is improved, and then structural engineering quality is improved.
本申请公开了一种地下结构盖挖逆作的施工方法，包括：施做围护墙；施做上层钢筋并浇筑形成上层板，上层板架设于两侧的围护墙上；开挖至下层板标高，施做侧墙钢筋并与上层钢筋连接；施做下层钢筋，并与侧墙钢筋连接，浇筑形成下层板；浇筑侧墙钢筋形成侧墙。由于施做下层钢筋与侧墙钢筋连接，浇筑形成下层板之前，先施做侧墙钢筋并与上层钢筋连接，其后续再进行浇筑侧墙钢筋形成侧墙，从而避免传统盖挖逆作施工导致侧墙钢筋上、下接头无法对齐，提高侧墙钢筋的支撑效果，提高侧墙钢筋连接的可靠性，进而提高结构工程质量。
Cover-excavation top-down construction method for underground structure
地下结构盖挖逆作的施工方法
YANG SHANTONG (author) / SEO YOUNG-HO (author) / HE MINJIE (author) / YU MINGSONG (author) / DONG XIAOPENG (author)
2022-03-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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