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中文摘要：
地面快克和沉淀作为一个例子在 Kaiyang 磷矿被调查。引起地面快克和采矿沉淀的贡献因素被学习，包括厚度和采矿场缩放的采矿方法，采矿深度和矿石，矿石身体的剧降角度，地质的结构，自然压垂并且浇内容，并且给支持装上顶部，等等。对裂缝和沉淀的反措施被提出。在治好时期的 28 d 以后的加重的磷石膏的单轴的压缩强度被测试是超过 1 MPa。磷石膏能为采矿场的装填被用作材料。由比较和数字模拟，由爆炸与中间深的钻的洞和矿石交通切并且充满采矿方法力量在 Kaiyang 作为最佳采矿方法被选择磷矿。
英文摘要：
Ground crack and subsidence were investigated in Kaiyang Phosphorus Mine as an example. Contribution factors to cause ground crack and mining subsidence were studied, including mining method, mining depth and ore thickness and stope size, dip angle of orebody, geological structure, nature of overburden and water contents, and roof supports, etc. Countermeasures against cracks and subsidence were put forward. The uniaxial compressive strength of compounded phosphorus gypsum after 28 d of curing period was tested to be more than 1 MPa. Phosphorus gypsum can be used as materials for the backfill of stope. By comparison and numerical simulation, cut and fill mining method with middle-deep drilling holes and ore transportation by blasting force was selected as the optimum mining method in Kaiyang Phosphorus Mine.
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