CAJ | 학술논문

首先提出对于软岩(土质)隧洞及时支护下的围岩变形稳定性可转化为支护结构的安全性这一评判理念，在此基础上进一步将初期支护(喷层)不出现拉压破坏时围岩与支护结构的对应变形作为评判标准，提出软质隧洞围岩稳定性评判新思路；考虑到支护结构内力的监测不便、不准，而支护结构的收敛变形监测较为方便与可靠这一工程现实，再次通过数值试验的方法，将支护结构的极限应力科学地转化为对应的支护结构的允许变形，进而建立能够考虑初期支护安全性的围岩稳定性评价新方法。该评判方法在新疆库尉输水隧洞工程的成功应用表明其具有较好的可靠性和适用性。
수선제출대우연암(토질)수동급시지호하적위암변형은정성가전화위지호결구적안전성저일평판이념，재차기출상진일보장초기지호(분층)불출현랍압파배시위암여지호결구적대응변형작위평판표준，제출연질수동위암은정성평판신사로；고필도지호결구내력적감측불편、불준，이지호결구적수렴변형감측교위방편여가고저일공정현실，재차통과수치시험적방법，장지호결구적겁한응력과학지전화위대응적지호결구적윤허변형，진이건립능구고필초기지호안전성적위암은정성평개신방법。해평판방법재신강고위수수수동공정적성공응용표명기구유교호적가고성화괄용성。
Since the deformation criterion of the surrounding rock was possible to be converted into the safety criterion of the supporting structures of tunnels,a new idea of stability assessment of surrounding rock was proposed. The deformation of the initial support at the critical state prior to the shotcrete damage due to the tensile or compressive stresses was taken as the criterion. Considering the inconvenience of shotcrete stress measurement accurately and the convenience and reliablility of the deformation monitoring,the critical stresses of shotcrete were then transformed into the corresponding critical deformations of shotcrete structures by the systematical numerical tests. The new method for stability evaluation of surrounding rocks considering the safety of the supporting structures was proposed for soft rock-mass tunnels. Applications of this new method to some tunnels successfully demonstrate its adequacy.