预应力锚索抗滑桩治理公路高陡边坡的应用

目前治理公路高陡边坡的措施有SNS柔性防护技术、喷锚网支护技术、抗滑桩墙体系等支挡结构，预应力锚索抗滑桩是治理高陡公路边坡一种新型支挡结构，具有受力合理、材料利用率高、经济等特点。分析了预应力锚索抗滑桩加固机理和体系的变形特征特点，并且分别以桩的锚固段为固定端和铰支为桩的受力模型，按变形协调原理分析了预应力锚索抗滑桩的内力。结合水任至南宁公路某高陡边坡治理的一个工程应用，体现出这种抗滑结构的优越性。

A Study on Applications of Stabilizing Piles With Pre-stressed Anchor Cables In High and Steep Slopes Remediation Works

The measures of Safety Netting System, the shotcrete-anchor-mat reinforcement and retaining piles, etc. are usually used to remediate the high and steep slopes, However, the piles with pre-stressed anchor cables is a new retaining structure to remediate the high and steep slopes, which is of the characteris tics of well-mechanicals, the high effectiveness of materials and more economical. The reinforced mechanisms and deformation of the the piles with pre - stressed anchor cables system are analyzed in the paper. Mean while, the internal forces of the piles with pre-stressed anchor cables system are researched on the base of the models, one of which is the bond length of piles fixed and the other hinged. An example is given in the last,which shows that the the piles with pre-stressed anchor cables to remediate the high and steep slopes is predominant.