抛石区工作面受限情况下的勘察及顶管施工探讨

Discussion on Survey and Pipe Jacking Construction in Case of Limited Working Face in Riprap Area

堤岸周围的抛石分布难以查清,对顶管工程会造成较大影响。在前人研究的基础上,以珠海第四条对澳门供水管道工程为例,通过岩土勘察和工程物探,探讨在局部工作面受限制、无法进行钻探的情况下如何进行抛石区的勘察和顶管施工,并提出可能存在的问题与建议。

The riprap distribution around the embankment is hard to check out, which will cause the greater influence on the pipe jacking construction. On the basis of the former study, taking the fourth water supply pipeline project to Macao from Zhuhai as an example, and according to the geotechnical survey and engineering geophysical exploration, the article discusses how to carry out the survey and pipe jacking construction of riprap area in the case of limited working face and no drilling, and puts forward the possibly existing problems and proposals.