超大断面抗滑桩开挖施工技术探讨

Exploration on Excavation Construction Technology of Ultra-large Section Anti-sliding Piles

介绍了大断面抗滑桩快速开挖施工技术。考虑到拉哇水电站的工程地质条件、施工条件以及与之相匹配的施工措施,在全人工开挖的基础上,采用人工配合小型挖掘机开挖的施工方式,对拉哇水电站堆积体治理抗滑桩工程进行了实证研究,结果表明:人工配合小型挖掘机开挖施工方式相较于全人工开挖方式效率更高,可以缩短施工工期,提高工程的管理水平,而且更加安全可靠。所取得的经验可为超大断面抗滑桩开挖施工提供参考。

This paper introduces the rapid excavation technology of large-scale anti-sliding piles.Taking into account the engineering geological conditions,construction conditions and corresponding construction measures of Lawa Hydropower Station,the construction method of manual excavation in coordination with small excavators instead of manual excavation only is adopted in anti-sliding piling works of the accumulation of Lawa Hydropower Station.The empirical study shows that the construction method of manual excavation in coordination with small excavators is more efficient than the manual excavation method not only because it can shorten the construction period,improve management of project,but also safer and more reliable.The experience gained can provide reference for the excavation and construction of ultra-large section anti-sliding piles.