CAJ | 학술논문

古港互通主线跨线桥、B 匝道跨线桥基础场地发育溶沟、溶洞及溶蚀裂隙，为了查明岩溶发育范围、规模、埋深状况以及岩溶地质构造和控制因素等，对两桥梁及其附近进行了针对性的工程物理探测及其部分钻探验证工作。准确定位了场地岩溶发育情况，物探工作采用了音频大地电磁法、激发极化法（包括电测深和剖面法）和瞬变电磁法，分析了岩溶对桥梁基础的影响程度，结果表明：场地内岩溶发育，规模较大，且受构造控制明显，采取避绕或适宜处理措施后，场地整体仍处于稳定状态。
고항호통주선과선교、B 잡도과선교기출장지발육용구、용동급용식렬극，위료사명암용발육범위、규모、매심상황이급암용지질구조화공제인소등，대량교량급기부근진행료침대성적공정물리탐측급기부분찬탐험증공작。준학정위료장지암용발육정황，물탐공작채용료음빈대지전자법、격발겁화법（포괄전측심화부면법）화순변전자법，분석료암용대교량기출적영향정도，결과표명：장지내암용발육，규모교대，차수구조공제명현，채취피요혹괄의처리조시후，장지정체잉처우은정상태。
There exist developed karren,karst cave and karst fissure in the area of Gugan deck bridge and B ramp bridge,in order to find out the karst development scope,scale,the condition of buried depth and karst geological structure and the control factors,the specific physics detection of engineering and the drilling verification work are done nearby two Bridges.In order to determine the karst develop-ment situations from the macroscopic and microscopic,the integrated detection method are adopted,inclu-ding audio magnetotelluric method,the induced polarization method(including electric sounding and pro-filing)and transient electromagnetic method,to find out the influence degree of the karst on the bridge.The results show that the ground within the karst development is extensive,local development large water-eroded cave,controlled by the structure,and provides a certain direction,but after maneuver around or appropriate treatment,space is still in the stable state.