underground mining

Research on underground mining techniques and damage prevention methods of gypsum mine;

石膏矿地下开采技术及灾害防治措施研究

Study on assessment methods of underground mining to surface buildings;

矿山地下开采对地表建筑物影响的评价方法研究

Analysis for stability of natural slope due to underground mining of the phosphorus ore in Liushan-gou mine;

柳山沟磷矿地下开采自然坡稳定性分析

A grey model GM(1,2) is modified as GM(1,2,M,N) based on analysis of possible time-lag effect and non-linear relation between ground subsidence and groundwater extraction.

通过分析地面沉降过程与地下水开采量之间可能存在的时滞性以及非线性关系,将原有的灰色GM(1,2)模型改进为灰色GM(1,2,M,N)模型。

The safety evaluation method of groundwater extraction is discussed in the view of attribute interval recognition theory.

从属性区间识别理论的角度,探讨了地下水开采安全评价方法。

Investigation method of ground surface deformation caused by groundwater exploitation;

地下水开采引起的地表变形调查方法

Numerical analysis to groundwater exploitation in Dawu karst well field;

大武水源地岩溶地下水开采动态数值模拟分析

Groundwater exploitation setup and seepage field changesin Shanghai;

上海地下水开采格局与渗流场变化

Three-dimensional mathematic model, which is about unsteady flow of groundwater exploitation, is built according to the conditions of hydrogeology and engineering geology of Xin Ye mansion in Hankou, the existed numerical equation of three-dimensional unsteady flow of confined aquifer is used to solve it, concrete numerical formulae of source-sink are emphatically discussed.

根据汉口新业大厦水文地质与工程地质条件,建立开采地下水非稳定流定解问题三维数学模型,利用现有承压含水层非稳定流定解问题数值方案求解,重点讨论了源汇项的具体数学表达式。

The result verified that it is feasible to calculate the value of the land subsidence due to groundwater exploitation.

在回顾地面沉降研究现状的基础上,提出采用Biot固结理论进行由降水形成的渗流场与应力场的耦合分析,并运用二维Biot固结平面有限元程序计算因开采地下水而引起的地面沉降问题,最后通过工程实例验证了该方法的可行性。

In this paper, a land-subsidence assessment of water-pumping project in Dagang,Tianjin City may be introduced, that the groundwater exploitation project may lead to land-subsidence.

本文以天津市大港区某取水项目为例,介绍开采地下水的地面沉降影响评价方法和结果,并分析项目区域的可用水源条件,从地面沉降角度出发,建议该项目优先选用外部地表水源,不宜开采地下水。

Based on the study of the groundwater mining quantity and surface subsidence from 1987 to 2005 and the tendency of the groundwater level change in the Ⅱ and Ⅲaquifers in Ninghe County,Tianjing,it is suggested that there is a clear relationship between the groundwater mining quantity and the subsidence rate,range and extent.

通过对天津市宁河县1987年至2005年地下水开采量、宁河县县城第Ⅱ和第Ⅲ含水岩组地下水水位埋深变化趋势及其相对于1986年以来的累积沉降量的统计和相关线性分析后发现,天津市宁河县地面沉降的范围、沉降幅度、沉降速率和地下水的开采量有着明显的相关性,地下水的强采区、地下水位降落漏斗的中心区与地面沉降在时间和空间上具有高度的一致性。

This paper suggests the relationship between groundwater mining and land subsidence.

从地下水运动均衡原理的角度分析了锡山市西部地区第Ⅱ承压含水层天然和现状开采条件下的地下水均衡要素,揭示了该地区地下水开采与地面沉降的关系,其中现状开采条件下的75%～80%的开采量来自于粘性土层的压密释水量;同时,根据地面沉降的发生机理剖析地面沉降严重发育地区忽略地面沉降影响因子建立的地下水资源计算模型中存在的问题,提出了地下水可开采资源合理的计算方法,并对考虑地面沉降影响因子的地下水资源计算模型的可实现性进行了分析。

Specification for non-ferrous metal work for underground of the foundation of geology

有色金属地下开采矿山基建地质规程

Study of the Influence on Underground Mining during Stacking the Gangue in Open Pit;

露天采空区排尾对地下开采影响的研究

The Study on The Forecast of Water Inflow during Turing Open Pit into Undergound Mining in ShiRengou Iron Mine;

石人沟铁矿露天转地下开采地下涌水预测研究

Terms relating to coal mining--Underground mining

GB/T15663.3-1995煤矿科技术语地下开采

The teaching practice for the course of "the underground exploit of solid mineral deposit";

“固体矿床地下开采”课程教学探讨

Study on the Stability of Wall Rock and Control Technology on Underground Mining

地下开采围岩稳定性及控制技术研究

Establishment of 3D Model & Exploitation Design for Transition from Open Pit to Underground in 701 Mine

701矿3DM构建与露天转地下开采设计

STUDY ON FRACTURE MECHANISM OF OVERLYING SUPER-THICK ROCK STRATUM IN UNDERGROUND MINING

地下开采上覆巨厚岩层断裂机制研究

Analysis of displacement and deformation due to underground mining in Baizhu phosphorite mine

白竹磷矿地下开采岩体移动变形分析

Surface mining is only used when the mineral deposit lies near the surface of the ground. For those buried deep in the ground, underground mining is used instead.

露天开采只是在矿床靠近地表时才使用。对深埋在地下的矿床，采用地下开采。

The harmfulness of high step burst body and the prevention of its taking place during the initial stage of changing underground into opencast mining

地下开采转露天开采初期高台阶爆裂体的危害与防治

Study on Fault's Influence to Goaf in Underground Mining Transferring from Open-Pit in Complex Situation

复杂条件下露天转地下开采断层对采空区影响研究

underground milling

地下放矿漏斗开采法

Study on Rules of Mining Damage Caused by Open-pit with Under-ground Mining;

露天地下联合开采采动损害规律研究

Programming on Prediction of Coal-mining-induced Subsidence under Simple Geological-mining Conditions;

简单地质—开采条件下的采煤沉陷预测程序设计

Research on Ground Displacement and Deformation from Fully-mechanized Top-coal Caving Mining

综采放顶煤开采条件下的地表沉陷规律研究

virgin tank oil

换算成地面条件下的未开采石油

Analysis of Risk Decision Making for Groundwater Exploitation within Jinci Spring Area, Shanxi Province

晋祠泉域地下水开采决策的风险分析