Taking a deep foundation pit project adjacent to the ultra-high voltage power pipeline in Shanghai as the research ob-ject,the retaining form of the foundation pit was introduced,and the corresponding protection measures were provided according to the pipeline protection requirements.Through the comparison and analysis of the theoretical calculation value and the actual monitoring value,it can be seen that:(1)the lateral deformation of the enclosure is in the shape of a"fish belly"parabola,and the deformation res-istance of the diaphragm wall is better than that of the cast-in-place pile;(2)The surface settlement can reflect the vertical displace-ment of the pipeline.The construction conditions before foundation pit excavation will have a certain impact on the surrounding roads and pipelines;(3)The measured deformation is larger than the theoretical calculation because the theoretical calculation only considers the deformation of the retaining structure during excavation.
关键词
软土地区/超高压管线/地下连续墙/侧向变形/地面沉降
Key words
soft soil area/ultra-high voltage power pipeline/diaphragm wall/lateral deformation/surface settlement
维普
万方数据