ZHANG Jing-kao, HAN Xu-shan, LIU Zhen-xiang, LIN Zheng-ting. The log testing method used for ground control in subsidence area[J]. COAL GEOLOGY & EXPLORATION, 2002, 30(6): 50-52.
Citation:
ZHANG Jing-kao, HAN Xu-shan, LIU Zhen-xiang, LIN Zheng-ting. The log testing method used for ground control in subsidence area[J]. COAL GEOLOGY & EXPLORATION, 2002, 30(6): 50-52.
ZHANG Jing-kao, HAN Xu-shan, LIU Zhen-xiang, LIN Zheng-ting. The log testing method used for ground control in subsidence area[J]. COAL GEOLOGY & EXPLORATION, 2002, 30(6): 50-52.
Citation:
ZHANG Jing-kao, HAN Xu-shan, LIU Zhen-xiang, LIN Zheng-ting. The log testing method used for ground control in subsidence area[J]. COAL GEOLOGY & EXPLORATION, 2002, 30(6): 50-52.
The log testing method used for ground control in subsidence area
By the methods of ultrasonic scanning image, density, resistance, sonic speed and hole diameter tesing mehtods the effect of subsidence control fulfilling with cement and coal powder.The result indicated that the effect is satisfactory and useful for static evaluation controlled ground.
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