RRTS-II TESTING MACHINE FOR ROCK RHEOLOGICAL PERTURBATION EFFECT
RRTS-II TESTING MACHINE FOR ROCK RHEOLOGICAL PERTURBATION EFFECT
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发表时间：
2011
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通讯作者：
Cui Xihai
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作者：
Cui Xihai
深部软岩巷道围岩在扰动荷载作用下会产生流变变形。为了建立巷道围岩的本构关系，需要研制岩石流变扰动效应试验机进行试验。该试验机能够长期施加恒定的轴压、围压和扰动载荷，并能测试扰动载荷和岩石变形。研制的RRTS-Ⅱ型岩石流变扰动效应试验机，其轴向压力采用重力加载，适合于长期流变试验。轴向加载通过齿轮和液压结构实现，压力可达100 MPa，是重力加载的60-100倍。冲击波和爆炸波作用下的扰动荷载可以用爆破振动记录仪测量，其测量精度为0.015mm/s。利用高压气体储能装置实现的三轴盒所施加的围压可达10 MPa。试验机配有载荷、位移、应变和振动测试系统及相应的数据处理软件。适用于低围压扰动载荷下的单轴和三轴压缩试验。试验结果表明，该试验机结构合理，性能稳定，精度高。
The rheological deformation of surrounding soft rock of roadway in deep mine can be caused by perturbation load. In order to establish the constitutive relation of roadway surrounding rock,the testing machine for rock rheological perturbation effect should be developed to conduct experiments. The testing machine is able to apply long-term constant axial pressure and confining pressure and perturbation load,and to test the perturbation load and rock deformation. The developed RRTS-II testing machine for rock rheological perturbation effect,whose axial pressure adopted by gravity loading,is suitable for long-term rheological test. The axial loading is achieved by gear and hydraulic structures;the pressure can reach 100 MPa,which is up to 60-100 times than the gravity loading. The perturbation load applied by impact and blast can be measured by blasting vibration recorder,whose measurement accuracy is 0.015 mm/s. The confining pressure applied by triaxial cell,which is achieved by high pressure gas energy storing device,can reach 10 MPa. The testing machine is equipped with load,displacement,strain and vibration test systems and corresponding data processing software. It is suitable for uniaxial and triaxial compression tests under low confining pressure with perturbation load. Test results show that the testing machine has reasonable structure,stable performance and high precision.