CAJ | 학술논문

为研究围岩松动圈形成和扩展机理，从环境因素入手，通过引入湿度扩散方程，以及湿度与围岩力学性质的弱化关系，建立了湿度-应力-损伤理论模型，采用数值模拟的方法再现了围岩松动圈的形成扩展过程，得到了围岩时效性变形和破坏规律及其相应的应力演化结果。结果表明：数值模拟结果与现场试验结果具有很好的一致性；湿度是影响松动圈形成的一个重要因素，这一观点不仅可以有效解释目前松动圈理论存在的问题，而且可以为完善松动圈理论提供新思路。
위연구위암송동권형성화확전궤리，종배경인소입수，통과인입습도확산방정，이급습도여위암역학성질적약화관계，건립료습도-응력-손상이론모형，채용수치모의적방법재현료위암송동권적형성확전과정，득도료위암시효성변형화파배규률급기상응적응력연화결과。결과표명：수치모의결과여현장시험결과구유흔호적일치성；습도시영향송동권형성적일개중요인소，저일관점불부가이유효해석목전송동권이론존재적문제，이차가이위완선송동권이론제공신사로。
To identify the EZD formation and propagation mechanism,the humidity-stress-damage coupling model based on the environmental factor was established by introducing the humidity diffusion equation and the humidity weakening effect on rock characteristics.The EZD formation and propagation process was reproduced in numerical simulation,and the time-dependent de-formation and failure characteristics of surrounding rocks and their stress evolution process were analyzed.The results show that numerical result is in good agreement with that from field test.Humidity is an important factor that affects the EDZ formation, and this conclusion can not only explain the current doubts about EDZ but also provide some new ideas for the development of EDZ theory.