临近既有构筑物软土基坑开挖支护施工技术

Excavation and Support Technology of Foundation Pit in Soft Clay near Existing Structures

以某污水处理构筑物深基坑施工为例,介绍了临近既有构筑物开挖基底处于富水粉砂地层的基坑,在不采用降水措施下的开挖与支护措施。工程实践表明,采取的措施具有安全性、可靠性、经济性,能够确保施工顺利进行,效果良好。

Taking the deep foundation pit construction of a sewage treatment structure as an example.The foundation pit near the existing structure and the excavation base in the water-richsilty sand stratum is introduced.Excavation and support measures without dewatering measures.The practice shows that the measures adopted are safe,reliable and economical,and ensure the smooth construction with good effect.