The paper describes the principle and method of equivalent model experiment concerning vertical stress of surrounding rock by means of equivalent material simulation and also analyzes the working function and calibration results of stress loop type model supports .

u9610u8ff0u4e86u76f8u4f3cu6750u6599u6a21u578bu5b9eu9a8cu4e2du6d4bu8bd5u6a21u578b u91c7u52a8u8fc7u7a0bu4e2du5de5u4f5cu9762u9876u677f u56f4u5ca9u5e94u529bu5f62u6210u7684u539fu7406uff0cu4ee5u53cau6d4bu8bd5u65b9u6cd5u548cu5b9eu9a8cu6b65u9aa4uff0cu5e76u5206u6790u4e86u5e94u529b u73afu5f0fu6a21u578bu652fu67b6u7684u5de5u4f5cu7279u6027u4e0eu6807u5b9au7ed3u679cu3002

The relationship between the temperature response of the surrounding temperature step changes and that of the loop current step heating is proved . Then a data processing method is found in obtaining the response time constant .

u7531u4f20u70edu5b66u539fu7406uff0cu8bbau8bc1u4e86u70edu7535u963bu5728 u5916u90e8u9636u8dc3u6e29u5ea6u54cdu5e94u4e0e u56deu8defu7535u6d41u9636u8dc3u65b9u6cd5uff08 LCSRu6cd5uff09u6e29u5ea6u54cdu5e94u4e4bu95f4u7684u8054u7cfbuff0cu636eu6b64uff0cu5efau7acbu4e86u6c42u5f97u54cdu5e94u65f6u95f4u5e38u6570u7684u6570u636eu5904u7406u65b9u6cd5u3002

Having designed the non-wearing testing system the essay analyzes the influence on the temperature-rising curve by the surrounding temperature and the loop resistance and then the non-wearing nature of the transient pulse test is verified .

u7814u7a76u8bbeu8ba1u4e86u65e0u635fu68c0u6d4bu7cfbu7edfuff0cu5206u6790u8ba8u8bbau4e86 u73afu5883u6e29u5ea6u3001 u56deu8defu7535u963bu5bf9u6e29u5347u66f2u7ebfu7684u5f71u54cduff0cu5e76u5bf9u77acu6001u8109u51b2u8bd5u9a8cu7684u65e0u635fu6027u8fdbu884cu4e86u9a8cu8bc1u8bd5u9a8cu548cu5206u6790u3002