With the increase of lateral pressure modulus , the magnitude of principal stress decreases and the direction of it is hardly changeable ; with the increase of the angle between the direction of the maximal horizontal principal stress on magnitude and the fault bearing , the magnitude of principal stress increase and its direction can hardly change ; with the increase of the elastic modulus of rocks , the magnitude of principal stress increases and the direction changes more ; with the increase of pr , the magnitude of principal stress decreases and the direction changes more ; with the increase of lateral pressure modulus , the principal stress at hance , the tress at topmost arch , bottom arch and principal stress at lateral arch decreases , with the increase of the depth of tunnel , the stress of surrounding rock also increases , and the poorer the quality of surrounding rock is , the little its principle stress is 分析得出,随着侧压力系数的增大,主应力量值减小,主应力方位难改变;随着与断层走向的夹角增大,主应力量值增大,应力方向难改变:随着岩石的弹性模量的增大,主应力量值增大,方向变化越大;随着泊松比的增大,主应力量值减小,方位变化越大。随着侧压力系数的增大,顶、底拱处的各应力值增大,拱腰处的主应力减小,剪应力增大,侧拱处的各主应力减小,同一侧压力系数的条件下围岩质量越差,各应力值也越小;随着洞室埋深的增加,围岩压力也增大,围岩质量越差,其应力值也减小。
岩石: rock; roche; pena; roach; -l ...的: 4次方是 The fourth power of 2 i ...静的弹性模量: static elastic modulus矿物的弹性模量: mineral elastic modulus以声速计算的弹性模量: sonic bulk modulus弹性模量: chord modulus; e modulus of elasticity; elastic modulus; elastic ratio; elasticity modulus; elasticity, modulus of; gpa; modulus of elacticity; modulus of rupture; young's modulus弹性模量比: elastic modular ratio; elastic modulus ratio; ratio of moduli of elasticity; ratioofmoduliofelasticity动弹性模量: dynamic elastic modulus; dynamic modulus of elasticity复弹性模量: complex modulus高弹性模量: high elastie modulus静弹性模量: static modulus of elasticity曲弹性模量: modulus in elasticity in bending; modulus of elasticity in bending; modulusinelasticityinbending湿弹性模量: wet modulus弦弹性模量: chord modulus of elasticity粘弹性模量: viscoelastic modulus正弹性模量: normal elastic modulus纵弹性模量: modulus of longitudinal elasticity恒温器用复合金属的弹性模量测试法: standard test method for modulus of弹性模量;弹性模数: modulus of elasticity表观弹性模量: a arent modulus of elasticity; apparent elastic modulus; apparent modulus of elasticity材料弹性模量: elasticity modulus of materials持久弹性模量: sustained modulus of elasticity持续弹性模量: sustained modulus of elasticity初始弹性模量: initial modulus of elasticity弹性模量试验: elastic modulus test