【摘要】 石井河中游截污工程L4顶管工作井属小型沉井,依靠沉井自重采用不排水法下沉,施工过程中由于各种原因造成了下沉困难。文中对其产生的原因进行了分析,并提出了处理方法和预防措施。更多还原

【Abstract】 L4 pipe thrust working shaft is a miniature open caisson adopting undrained method to sink by deadweight, which is in use for intercepting sewage in middle reaches of Shijing river. During the construction of it, it is difficult to sink because of various reasons. This paper analyszes the reasons and puts forward treatment methods and prevention measures.更多还原