地质选线在格鲁吉亚铁路项目某段的作用  

The Role of Geological Route Selection in One Section of Georgian Railway Project

作　　者：王波[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》2015年第4期6-9,20,共5页Journal of Railway Engineering Society

摘　　要：研究目的：格鲁吉亚现代化铁路KM12＋100-KM13＋600段初步设计方案采用隧道穿越Babi村古滑坡中上部，工程建设容易扰动该大型古滑坡，从而造成难以估量的损失。本文主要介绍如何在该地区采用遥感解译、地质调绘、地质勘探等综合地质勘察手段以查明Babi村古滑坡的各地质要素，分析其形成原因，并提出线路绕避建议。研究结论：（1）通过应用综合地质勘察方法，查明了该滑坡为主轴长约520m、宽270m的“倒梨形”滑坡；（2）确定了该滑坡类型属强震作用下形成的岩质切层滑坡；（3）使用“双管单动”钻探技术查明了滑动面的位置及对工程的影响深度；（4）结合勘察资料分析，初步设计方案存在较大的风险，提出向山内稳定基岩通过的线路绕避方案；（5）本研究成果对滑坡区域的勘察和选线工作有一定指导意义。Research purposes： The primary design plan of Georgian modernized railway applies tunnel to go through the upper part of Babi village ancient landslide in the section of KM 12 ＋ 100 - KM 13 ＋ 600. It is known that engineering construction is easy to disturb the large ancient landslide and cause incalculable loss. This paper described how to use the comprehensive geological survey methods, such as remote sensing interpretation, geological mapping, geological exploration and so on to identify the elements of Babi village ancient landslide and analyzed its cause. The route bypassing plan was proposed. Research conclusions：（ 1 ） By using comprehensive geological survey methods, the investigation works brought out that the size of the landslide was about 520 m long and 270 m wide, with the shape like an inverted pear. （2） It ensured the type of the landslide belonged to rock - cutting landslide, which may be caused by strong earthquake. （3） Thanks to the ＂ Single Rotary and Double - Tube Core＂ drilling technique, the location of sliding surface and affecting depth for the project were identified. （4）Combined with the survey data, preliminary design plan would have serious risks. The reasonable route bypassing plan which should go through the inside bedrock area was proposed. （5）This paper has a certain guiding significance to the investigation and route selection works in the landslide area.

关 键 词：古滑坡 地质勘察 线路优化 

分 类 号：U212.35[交通运输工程—道路与铁道工程]