CAJ | 학술논문

研究目的：川藏铁路成都至康定段位于我国西部著名的“Y”字型构造楔合部位，区域构造复杂，新构造运动活跃，分布有龙门山断裂、鲜水河断裂和玉农希断裂三条全新世活动断裂，断裂活动对该区铁路选线所造成重大影响。本文通过研究三条活动断裂的粘滑位错、蠕滑变形特征，强震破坏特征以及活动断裂导致的热害、次生灾害分布情况，来探讨在此类地质条件复杂区域的地质选线原则，从而降低活动断裂对铁路工程的破坏。研究结论：（1）川藏铁路成康段穿越的三条断裂均发生过强烈地震，断裂活动性强，对铁路选线影响较大，需通过合理选线降低风险；（2）活动断裂导致的工程效应有地表破裂导致工程破坏，地震波导致震动破坏，断裂控制区地热异常导致工程施工难度加大或工程方案不可行，断裂活动形成的次生灾害如滑坡、泥石流、崩塌等对工程造成破坏；（3）活动断裂区地质选线应充分考虑活动断裂的活动特征以及其导致的主要工程问题；（4）本研究成果主要应用于川藏铁路成康段地质选线工作。
연구목적：천장철로성도지강정단위우아국서부저명적“Y”자형구조설합부위，구역구조복잡，신구조운동활약，분포유룡문산단렬、선수하단렬화옥농희단렬삼조전신세활동단렬，단렬활동대해구철로선선소조성중대영향。본문통과연구삼조활동단렬적점활위착、연활변형특정，강진파배특정이급활동단렬도치적열해、차생재해분포정황，래탐토재차류지질조건복잡구역적지질선선원칙，종이강저활동단렬대철로공정적파배。연구결론：（1）천장철로성강단천월적삼조단렬균발생과강렬지진，단렬활동성강，대철로선선영향교대，수통과합리선선강저풍험；（2）활동단렬도치적공정효응유지표파렬도치공정파배，지진파도치진동파배，단렬공제구지열이상도치공정시공난도가대혹공정방안불가행，단렬활동형성적차생재해여활파、니석류、붕탑등대공정조성파배；（3）활동단렬구지질선선응충분고필활동단렬적활동특정이급기도치적주요공정문제；（4）본연구성과주요응용우천장철로성강단지질선선공작。
Research purposes:Chengdu to Kangding of Sichuan -Tibet Railway is located in the western section of Chinese famous "Y"shaped tectonic wedge position.Regional structure is complex,and the neotectonics is active. There are three Holocene active faults in this area,such as Longmenshan fault,Xianshuihe fault and Yunongxi fault, which have significant impact to railway route selection.By research on the characteristic of the three active faults in the region works with sticky slip dislocation,creep slip deformation,thermal damage,and the secondary geological disasters caused by strong earthquakes,this paper discussed on the principle of geological selection in complex areas of this kind of geological conditions,to reduce the damage to railway projects. Research conclusions:(1 )The three faults of Chengdu to Kangding of Sichuan -Tibet Railway where the strong earthquake occurred,have fault activity and have a greater influence on the railway line selection,to reduce risk by reasonable line selection.(2 )The project effect caused by active faults has engineering damage caused by the surface rupture,vibration damage caused by seismic waves,increased difficulties of engineering construction or engineering plan not workable caused by geothermal anomaly in fracture controlled area,the secondary disasters such as landslide,debris flow,collapse damage to engineering formed because of faulting.(3 )The geological route selection in active faults area should give full consideration to the activities of the active faults and the main engineering problems caused by it. (4)The research results are mainly applied to the geological route selection work of Chengdu to Kangding in Sichuan-Tibet railway.