玉磨铁路采空区段地质选线研究  

Research on the Geologic Route Selection in Goafs of Yuxi-Mohan Railway

作　　者：邓睿[1] 杜宇本[1] 蒋良文[1] 陈伟[1] 

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《铁道工程学报》2017年第2期21-25,共5页Journal of Railway Engineering Society

摘　　要：研究目的:玉溪至磨憨铁路沿线矿产资源丰富,采空区对线路走向影响较大。本文通过对沿线采空区地质概况、开采情况进行详细调查,并参照相关理论对其稳定性进行分析,重点对影响控制线路方案的铜矿和盐矿采空区段进行地质选线研究,探究合理的方案,为玉磨铁路选线提供重要参考依据。研究结论:玉磨铁路牙骨铜矿、磨黑盐矿及磨歇盐矿采空区分布于不同段落,具有不同采空特点。通过地质选线研究得出以下结论:(1)牙骨铜矿采空区开采年代久远,难以查明采空情况,建议采用绕避采空区的他郎河下游方案;(2)磨黑盐矿采空区地表沉陷明显,可研设计方案位于移动盆地内,且矿区地下水侵蚀作用等级高,建议线路避绕;(3)磨歇盐矿采空区避绕方案长度变化小,虽然桥隧比增加,但仍为地质选线推荐方案;(4)采空区往往稳定性较差,治理难度较大,工程风险大,线路方案应尽量绕避;(5)本文分析结果可以为类似环境条件下采空区地质选线提供一定的参考。Research purposes： The mineral resources are abundant along Yuxi - Mohan railway, and mined out area has great influence on the line. Based on detailed investigation.7 of geology and mining situation, in this paper the geological route selection is researched about goafs of copper mine and salt mine which impact and control the line, through the stability analysis on goafs according to correlation theory. Then the reasonable line selection scheme is advised, in order to provide important references for the Yuxi - Mohan railway line selection. Research conclusions：The goals of Yagu copper mine, Mohei and Moxie salt mine are distributed in different mileage location of Yuxi - Mohan railway, with different mining characteristics. The following conclusions are obtained ： （ 1 ） The goal of Yagu copper mine is old and difficult to find out the situation of mining, and the line is recommended to choose the downstream scheme of Talang river to avoid it. （2） The line of feasibility study is proposed to avoid the Mohei salt mine with surface subsidence obviously and high level erosion of groundwater. （3） The line avoided Moxie salt mine should be choosed, although it has small change in length and higher ratio of bridge and tunnel. （4） Mined out areas tend to be less stable, more difficult to control and larger project risk, the line should be avoided as far as possible. （5） The research results can provide some references for the geologic route selection in goals on similar environmental conditions.

关 键 词：玉磨铁路 采空区 地质选线 

分 类 号：U212[交通运输工程—道路与铁道工程]