CAJ | 학술논문

针对在城市修建地铁时可能遇到的一种严重危害工程安全的地质灾害体---溶洞，建立了4种典型溶洞模型，使用有限元法和迭代法进行正反演数值模拟，得到井间电阻率成像方法对典型溶洞的探测响应特征，分析总结不同模型响应特点，辅以大连地铁工程实例验证实际探测中的良好应用效果。研究结果表明，井间电阻率成像方法是城市地铁溶洞探测的一种有效的方法，可为城市地铁施工提供相应的安全保证，基于数值模拟和工程实践对在城市地铁使用井间电阻率成像方法进行溶洞探测提出现场工作和数值处理建议。
침대재성시수건지철시가능우도적일충엄중위해공정안전적지질재해체---용동，건립료4충전형용동모형，사용유한원법화질대법진행정반연수치모의，득도정간전조솔성상방법대전형용동적탐측향응특정，분석총결불동모형향응특점，보이대련지철공정실례험증실제탐측중적량호응용효과。연구결과표명，정간전조솔성상방법시성시지철용동탐측적일충유효적방법，가위성시지철시공제공상응적안전보증，기우수치모의화공정실천대재성시지철사용정간전조솔성상방법진행용동탐측제출현장공작화수치처리건의。
Karst caves were serious potential threats to the construction of subway.Four kinds of karst caves models were built and the numerical simulation were put forth by using the finite element and iteration method.The typical re-sponse characteristics were obtained to cross-hole resistivity tomography method of the models, and the response fea-tures were analyzed and summarized.Project cases in Dalian subway verified its favourable application effect in prac-tice.Research results proved that cross-hole resistivity tomography method was an effective technology to karst cave de-tection and could help to ensure the safety of subway construction.Finally, based on numerical simulation and project cases, a few recommendations were given both in working method and data processing when using cross-hole resistivity tomography method to detect karst caves.