【摘要】 在调查研究的基础上 ,对目前上海市下水道的损坏现象进行了统计分类 ,分析了管道损坏机理及流砂地区因管道损坏渗漏而引起的地面下沉和管道坍塌。在分析的基础上 ,根据本市研究和积累的工程经验 ,提出了软土地层下水道修复的优化方案。更多还原

【Abstract】 Information is collected from investigation of pipeline damage in Shanghai, and the causes for such damage are studied. In area with quick sand, leakage from a damaged pipe may cause ground settlement and collapse of the pipeline. With extensive studies and accumulated engineering experience, optimal proposals are given here to repair the damaged sewer in soft ground更多还原