岩质边坡卸荷作用对铁路交通运营的影响分析

为研究山区沿坡修建的公路与铁路并行时,后筑工程的公路边坡开挖对原有铁路交通的影响,采用数值方法确定出开挖边坡的影响范围,得出了公路边坡开挖会影响铁路运行安全。提出了在三、四级边坡采用预应力锚索框架梁,一、二级边坡采用锚杆框架梁并边开挖边支护的防护形式,计算结果证实了该方案的合理性。

Analysis on Effect of Rock Slope Unloading upon Railway Transport

In order to research on the effects of excavated highway slope upon the old railway transportation which is parallel with the highway,the affected areas of excavation are determined by using the numerical method firstly,and it is concluded that the excavated slope would affect the safety of railway transportation.At last,it is put forward that the prestress anchoring cable-beams are used for 3 and 4 step slope,the anchor frame beams are used for 1 and 2 step slope,and when digging one step,it would be protected in time.The calculation results show that the program is reasonable.