明挖單洞雙向雙車道基坑支護技術

打開文本圖片集

【摘    要】： 考慮基坑支護承載力決定著基坑工程的穩(wěn)定性與安全性，以實際工程為例，分析雙向雙車道基坑周圍環(huán)境條件，尋找最佳基坑支護樁的施工區(qū)域，設計適應施工地形條件的基坑支護體系；實現(xiàn)穩(wěn)定的單洞雙向雙車道基坑支護設計，工程實際驗證新基坑支護承載力更高、穩(wěn)定性更佳。

【關鍵詞】： 明挖法；單洞；雙向雙車道；基坑支護；承載力

【中圖分類號】：U455 【文獻標志碼】：C 【文章編號】：1008-3197（2023）06-22-03

【DOI編碼】：10.3969/j.issn.1008-3197.2023.06.006

Foundation Pit Support Technology based on Cut-and-Cover for

Single-Hole Two-LaneTwo-Way Road

KE Qian， KE kai

（China Gezhouba Group Co. Ltd. ， Wuhan 430061， China）

【Abstract】：Considering that bearing capacity of foundation pit support determines the stability and safety of foundation pit engineering， the paper uses actual project as an example to analyze the environmental conditions around the two-way two-lane foundation pit to find the best construction area for the foundation pit supporting piles; design the foundation pit supporting structure and the stable single-hole， two-way， two-lane foundation pit support design is realized. The actual project example is used to verify that the new foundation pit support has higher bearing capacity and better stability.

【Key words】：cut-and-cover method; single hole; two-lanetwo-way road; foundation pit support; bearing capacity

隨著城市化進程繼續(xù)推進，類似城市軌道、地下管廊、地下商場、地下停車場、倉儲室等地下空間廣泛建設[1]。（剩余3535字）