管线沟槽回填土密实度与自然沉降时间关系试验探究与总结

Relationship experimental exploration and summary of pipeline trench backfill soil compactness and natural settling time

通过对大伙房输水工程建安标预留试验段已完成回填的沟槽土取样检测,分析不同时期回填土密实度变化情况,总结回填土密实度与自然沉降时间关系及不同类型回填土沉降后密实度变化情况,为管道沟槽回填施工的控制和检测评定提供参考和借鉴。

Trench soil backfilled in Dahuofang Water Conveyance Project Jian＇an bid reserved test section is sampled and tested. Change conditions of backfilled soil compactness during different periods are analyzed. The relationship between backfilled soil compactness and natural settling time as well as compactness change condition after the settling of different type backfill soil are summarized,thereby providing reference for pipeline trench backfill construction control and testing evaluation.