我国湖北省殷盐矿务局设于宜昌地区远安县盐池河谷,年采8万吨磷矿石。盐池河流经矿区北侧,两岸山岭海拔1011米,切割谷地深500米。这里属于活动断层带,裂隙纵横,山岩被切割成块。山体自1969年采磷矿后,顶部悬空,摇摇欲坠。1980年5月,山嘴零星滚石坠谷。随后进入雨季,崩塌前三天降雨74 Yin Salt Mining Bureau of Hubei Province in China is located in Yichang Yuan’an Salt Lake Valley, mining 80,000 tons of phosphate rock. Yanchi River flows through the northern side of the mine, the two sides of the mountain elevation of 1011 meters, 500 meters deep valley. Here are active fault zone, vertical and horizontal cracks, rock was cut into pieces. After the mountain took phosphate rock in 1969, the top was vacant and crumbling. May 1980, mountain sporadic rolling stone valley. Then into the rainy season, rainfall 74 three days before the collapse