赵山渡引水工程沙门渡槽不均匀沉降修复技术方案研究

沙门渡槽工程1号、2号桩基位置地质条件突变,从而导致渡槽不均匀沉降,致使承台中间部位产生贯穿性裂缝,威胁工程运行安全。本文以赵山渡引水工程沙门渡槽为例,通过对其裂缝成因进行分析,提出增设支座技术处理修复方案,在不影响工程运行安全的前提下完成修复工作,并取得较好的效果。

Study of Uneven Subsidence Recovery Technology Program of Zhaoshandu Water Diversion Project Shamen Aqueduct

Geological conditions of Shamen Aqueduct Project No. 1 and No. 2 dam foundation positions are suddenly changed, thereby leading to uneven subsidence of aqueduct and penetrating cracks in middle part of cushion cap, and threatening the safe operation of the project. Zhaoshandu Water Diversion Project Shamen Aqueduct is adopted as an example in the paper. Causes of cracks are analyzed, technical treatment recovery program of additionally setting up abutment is proposed, recovery work should be completed under the precondition of not affecting project operation safety, and excellent results are achieved.