CAJ | 학술논문

拟建怒江特大桥为大理至瑞丽铁路全线重大控制性工程之一,桥址地处保山地块与腾冲地块碰撞缝合带—怒江断裂带内,怒江两岸深大断裂及褶皱发育,构造极其复杂,不良地质发育,特大桥受复杂地质环境及前后引线工程地质选线制约,选址困难。在前期工作确定的三个比选桥址基础上,通过分析研究三桥址工程地质条件,结合前后引线工程地质条件,综合定性分析和专家评判法结果,比选推荐了大坪子桥址方案。
의건노강특대교위대리지서려철로전선중대공제성공정지일,교지지처보산지괴여등충지괴팽당봉합대—노강단렬대내,노강량안심대단렬급습추발육,구조겁기복잡,불량지질발육,특대교수복잡지질배경급전후인선공정지질선선제약,선지곤난。재전기공작학정적삼개비선교지기출상,통과분석연구삼교지공정지질조건,결합전후인선공정지질조건,종합정성분석화전가평판법결과,비선추천료대평자교지방안。
The Nujiang Brand Bridge to be built is one of the key control projects on Dali-Ruili Railway. It locates within Nujiang Fault Zone, the collision suture zone of Baoshan Block and Tengchong Block, and the deep and large faults and folds are developed along the both banks with complex structures and unfavorable geology. Therefore the influence of such complicated geological environment and constraint of geological route selection of front and rear lead engineering result in difficult site selection. Based on three bridge site schemes for comparison confirmed by previous work, the engineering geological conditions of these three sites is analyzed and studied; combined with the geological conditions in the front and rear lead engineering and incorporated the qualitative analysis and experts＇evaluation, Dapingzi site scheme is recommended.