边坡支护预应力锚杆、土钉设计力学参数与施工

Design Mechanical Parameter and Construction of Prestress Anchor and Soil Nail in Slope Support

考虑到大型山体支护工程的重要性 ,首先根据岩土工程勘察报告及应用工程类比法对本山体支护工程中预应力锚杆和土钉进行设计。施工前先进行锚杆试验 ,然后进行设计中的力学参数修正 ,再次设计 ,再次进行检验 ,最终确定设计及施工方案。详述了主要关键施工工艺和设计思路 ,其创新点在于将典型的设计方法同先进的施工工艺相结合 ,再加上锚杆定位的改进和改进后的施工时效 ,及清晰的设计理念给工程三方带来很大效益 。

Considering the importance of the big hill slope support engineering, first according to geotechnical reconnaissance report and applying engineering analogy methods design prestress anchor and soil nail in this hill slope support engineering, prior to construction need testing anchor anti-pull power, and secondly go on modifying design mechanical parameter. Again design, go on testing, and finally make sure design scheme and construction scheme. The paper dwells on the key construction methods and design ideas; the innovations are: first, combine the typical design methods with the advanced construction technics; second, add to improve the anchor orientation and the construction time and velocity; and third, the clear design ideas greatly benefit the three engineering parties.