测定某种花岗岩静摩擦系数的试验

为了揭示深部岩体块系构造的特性,以深部岩体的典型岩石-花岗岩为研究对象,利用自行研制的深部岩体动态特性多功能试验系统,对粗糙度为6的细粒花岗岩的单、双面静摩擦进行了试验研究.单面最大静摩擦力试验测量了4种不同工况,双面最大静摩擦力试验测量了2种工况,获得了该花岗岩的静摩擦系数为0.572.通过试验研究,发现了花岗岩块体间静摩擦的规律和特性,当位移响应变粗时,表明试件间的摩擦达到最大值.把测量试块单、双面最大静摩擦力作为基本的测量方法和技术,为下一步深部岩体的动态特性的试验研究奠定了基础.

Expermi enta l study on stat ic fr ic tion coe ffic ient o f g ranite survey

In o rder to revea l the con stru ctiona l feature o f the deep ro ck m ass, tak ing g ran ite, the ty pical rock in deep rock m ass fo r ex am p le, the study o f sing le face and doub le face stat ic f rict ion o f g ranu le g ranite, w ho se roughness is six, w as m ade by u sing the se lf-m ade m u lt i-funct io nal test sy stem o f deep ro ck m ass dy nam ic specialty. Fou r d if feren t o pe ra t ing condit ions in the big gest sta t ic f rict ion fo rce test o f sing le face and tw o diffe rent ope ra ting condit ions o f doub le face w erem easured, and the sta tic fr ict ion coe f ficien t 0. 572 w a s ob ta ined. W ith the study, law and ch aracteristic fo r sta tic f ric tion betw een g ran ite ro ck m ass w e re rev ea led, andm e t rica l w ay and techn ique fo rm ax im a l sta t ic friction coef f icien t w ere sough t. W hen the re sponse cu rv e o f disp lacem en t becom es bo ld, the fr ict ion betw een b lock s is m ax. T akem easu ring the m ax stat ic f rict ion be tw een the signa l and bo th sides o f the b lo cks fo r the basicm easu ringm e tho d and techno log y, w h ich estab lish s the founda tion fo r exper im en ta l study on kine tic cha racte rist ic o f deep rock m asses.