CAJ | 학술논문

对于岩溶区隧道塌方地段，选取合理的处治方案是非常关键的。利用 TSP 超前地质系统对尚家湾隧道出口左洞 ZK 67＋390～ZK 67＋270进行了探测，破译出 ZK67＋360附近可能赋存充填型溶腔，当施工至 ZK67＋360时充填型溶腔揭露并发生塌方，探测结果与现场实际揭露情况基本吻合。根据工程塌方处治实例，比较分析各种塌方处治方案的优缺点，给出了优化处治方案：护拱法配合砂浆锚杆稳固塌腔岩面。在处理段增设监测断面，通过监测隧道的水平收敛位移和拱顶沉降量以及钢拱架的内力反映隧道围岩的稳定状况，量测结果表明，在一定时间内围岩达到稳定，表明采用此方法处理隧道塌方区效果良好。
대우암용구수도탑방지단，선취합리적처치방안시비상관건적。이용 TSP 초전지질계통대상가만수도출구좌동 ZK 67＋390～ZK 67＋270진행료탐측，파역출 ZK67＋360부근가능부존충전형용강，당시공지 ZK67＋360시충전형용강게로병발생탑방，탐측결과여현장실제게로정황기본문합。근거공정탑방처치실례，비교분석각충탑방처치방안적우결점，급출료우화처치방안：호공법배합사장묘간은고탑강암면。재처리단증설감측단면，통과감측수도적수평수렴위이화공정침강량이급강공가적내력반영수도위암적은정상황，량측결과표명，재일정시간내위암체도은정，표명채용차방법처리수도탑방구효과량호。
At the region of tunnel collapse where karst developed,it is important to select appropri-ate construction scheme.The section ZK67 +390 ~ZK67 +270 of left tunnel from Shanjiawan tunnel exit were predicted by using the Tunnel Seismic Prediction.It is deciphered that there may be filling cavity near ZK67 +360.The filling cavity was uncovered and collapse occurred when the drift reached ZK67 +360.The predict results are generally in good agreement with the field-observed results.Based on an engi-neering case,the advantages and disadvantages of various treatment programs were analyzed,the optimal solution to treat the collapse is given:protective arch technique combining mortar anchor which was strengthened rock surface of collapse cavity.In order to test consolidation effect,observational method of consolidated tunnel collapse zone was constructed;convergence displacement and vault crown settlement were measured.It is shown from measured results,this method is the optimization method for temporary support requirements against potential collapse.