六沾复线梅花山至天生桥线路方案地质选线

发布时间：2019-06-10 20:52

【摘要】：贵昆铁路六沾复线梅花山至天生桥段穿越梅花山主脉,地形、地质条件极其复杂,地质构造、不良地质及特殊岩土极其发育,为铁路选线、设计及施工带来极大困难。通过综合地质勘察方法与手段,基本查明了区域内的工程地质特征及各线路方案的工程地质条件,为线路方案的比选提供了可靠的基础地质资料。影响选线的关键地质因素主要为沿观音河、树舍沟成群分布的滑坡、岩堆及危岩落石、深埋长隧的岩溶与岩溶水危害、煤窑(矿)采空区。通过对梅花山至天生桥段长隧方案、短隧方案、观音河出露方案工程地质条件综合定性分析、工程数量及投资比较,比选推荐了观音河出露方案以乌蒙山一号、二号隧道穿越梅花山主脉,地质条件较好,施工安全性较高,施工、运营后效果良好。
[Abstract]:The section from Meihuashan to Tiansheng Bridge of Gui-Kun Railway passes through the main vein of Meihuashan. The terrain and geological conditions are extremely complex, and the geological structure, bad geology and special rock and soil are extremely developed, which brings great difficulties for railway line selection, design and construction. Through the comprehensive geological survey methods and means, the engineering geological characteristics in the region and the engineering geological conditions of each line scheme are basically found out, which provides reliable basic geological data for the comparison and selection of the line scheme. The key geological factors affecting the route selection are landslide along Guanyin River and Shuxigou, rock pile and dangerous rock falling stone, Karst and Karst water hazard of deep buried long tunnel, coal kiln (mine) goaf. Through the comprehensive qualitative analysis of the long tunnel scheme, the short tunnel scheme and the Guanyin River exposure scheme, the quantity and investment comparison of the long tunnel scheme, the short tunnel scheme and the Guanyin River exposure scheme, the Guanyin River exposure scheme is compared and recommended to Wumengshan No.1. No. 2 tunnel passes through Meihuashan main vein, the geological condition is good, the construction safety is high, the construction effect is good after operation.
【作者单位】：中国中铁二院工程集团有限责任公司;
【分类号】：U212.32

【共引文献】