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- surface mining subsidence 地表沉陷
- How is surface mining carried out? 露天开采是怎样进行的?
- Mining subsidence affects ecological environment of minefield. 采煤塌陷,严重破坏了矿区的生态环境。
- The reasons of surface mining damage were analyzed. 摘要分析采矿活动对地表损坏的原因。
- A self-contained forecast model of mining subsidence is obtained,that is,the subsidence of surface is equal to direct model of mining plus additional concretion subsidence model plus addit. 通过研究获得了一个完备的开采沉陷预计模型,即地表沉陷=开采直接影响模型+附加固结沉陷模型+附加流动沉陷模型;获得了地表裂缝深度和宽度的估算公式。
- Ground environment is damaged and the serious mining subsidence calamities come out by common mining technology. 摘要常规方法开采煤炭已对地面环境造成了严重的沉陷灾害。
- The conventional mining causes the mining subsidence and at the some time a refuse heap arises on the ground. 常规开采在地面堆积矸石山的同时引起开采沉陷。
- A computer-aided cartography system for surface mine survey is proposed. 介绍了一个适用于露天矿测量的计算机辅助绘图系统。
- Mining subsidence not only damages terrain, hilt also disturbs the condition of phreatic level, and then affects the growth of crop and plant. 开采沉陷不仅破坏了地表形态,同时改变了潜水位的赋存条件,从而影响地表作物和植被的生长。
- The mining subsidence mechanism of metal mine with fractured blocky rock mass is different from that of coal mine with layered rock mass. 摘要金属矿山多为裂隙发育的块状岩体,因而开采引起的地表沉陷机制不同于层状地层的煤矿。
- R.E.Gray.Coal Mine Subsidence and Structures[J].Mine Induced Subsidence, 19 8 8, (5) : 6 9 - 8 6. 吴立新;王金庄.;建(构)筑物下压煤条带开采理论与实践[M]
- Mining subsidence is an important environmental geotechnical engineering problem in regional planning and transportation construction in Xuzhou. 煤矿采空塌陷是影响徐州地区区域规划与交通建设的重要环境岩土工程问题。
- The selection of dragline is a key problem to be handled when applying dragline for open cast in surface mining. 露天矿应用拉斗铲倒堆工艺的关键问题首先要做好拉斗铲的选型。
- The machine pictured above is a bucket-wheel excavator used in modern surface mining. 上面影像中的机器就是被用于现代露天采矿的一辆勺轮开凿机。
- In light of the characteristics of Nonpillar sublevel caving method,Probability integral method is used to predict mining subsidence and modified to improve predicting accuracy. 针对无底柱分段崩落法的采矿特点,把概率积分法引入金属矿山开采沉陷预测中,并通过模型修正提高预测精度。
- The environmental effect of surface mining on the groundwater was studied by leaching experiment and model forecast. 通过淋溶实验和模型预测对露天开采对地下水的影响进行了研究。
- Correctly evaluating hydrological geology characteristics of mining subsidence area is the key of realizing continuable utilization of mining subsidence land. 摘要正确评价采煤沉陷区的水文地质特征是实现采煤沉陷土地持续利用的关键。
- Predicting parameters of this are variational in different mining degree and the predicting precision for mining subsidence depends on variational laws of dynamic parameters. 该方法中的预计参数在不同采动程度下是变化的。能否准确获知动态参数的变化规律将决定着开采沉陷的预计精度。
- Surface mining is the process of excavating mineral deposits directly from the surface of the ground without costly shafts or tunnels into the earth. 露天采矿就是不用在地下挖掘费用高昂的井巷而直接从地表采矿的方法。