Analysis of time-to-time variation of load on interchamber pillars in mines of the Upper Kama Potash Salt Deposit

The procedure to estimate growth in load exerted on interchamber pillars with time is based on mathematical modeling of stresses and strains in structural elements of room-and-pillar mining method and on roof rock failure criteria. The calculation results illustrate a real time scale of variation in strength of rocks and the associated partial collapse of a parting and failure of edges of interchamber pillars when their height is increased.     

Micromechanical Characteristics of Karnallite,Sylvinite and Rock Salt at Upper Kama Deposit

The authors appraise the test measurements of elastic modulus and micro-hardness of sylvite, halite and carnallite grains on NanoTest-600 unit, and analyze micromechanical properties of grain boundaries in silvite and halite. An approximate estimator formula for yield stress has been derived based on the micro-hardness test data.     

The gravimetrical survey in handling the geological and mining problems at the Upper Kama Potassium Salt Deposit

The article reviews the recent procedures and software intended for processing and interpreting of gravimetry data in terms of the Upper Kama Potassium Salt Deposit, which allows the detail density structure of the strata. It is illustrated how to handle complicated geological problems to improve the safety of mining.     

Gas-geochemistry approach to monitoring mining-induced genesis processes in the geological environment of the Upper Kama Potassium Salt Deposit

The article focuses at the gas-geochemistry profiling results at the Upper Kama Potassium Salt Deposit. It has been examined how the mining-caused deformations in the salt strata and abovesalt hydrocarbon strata influence the gas background in the subsurface layers. Efficiency of the gasgeochemistry approach to monitoring the mining-induced genesis processes in the studied geological environment has been proved.     

全站仪GPS（RTK）在物探工程测量中的配合应用

对GPS(PTK)技术与全站仪,在物探工程测量中的应用技术作了介绍,并对两种方法结合使用的优越性作了简要分析.     

Specific roof behavior in the southern wing of the Upper Kama potash salt deposit

The authors consider a number of geomechanical monitoring methods for the underworked salt rock behavior, including visual control of its specific structural features, measurement of displacements using contour and depth reference points, and assessment of stresses in the surrounding rock mass. It is proposed to assess stresses in salt rocks using long spacing measurement methods without modeling-based recovery of stresses from measured strains if possible.     

The Analysis of Potash Salt Dust Deposition in Roadways

Journal of Mining Science - The authors propose a mathematical model of salt particulate dynamics in a roadway, including convection and diffusion of particles with air flow, coagulation of...     

GPS RTK在地球物理勘探中的应用

GPS(Global Positioning System)全球定位系统是以卫星为基础的无线电卫星导航定位系统,具有全球性、全天候、连续性、实时性导航定位和定时功能,而且具有良好的抗干扰性和保密性,能为各类用户提供精密的三维坐标、速度和时间。RTK(Real time Kinematic)技术即实时载波相位差分技术,是实时处理两个测点载波相位观测量的差分方法,它具有观测时间短、精度高、无须通视和现场给出精确坐标等优点。     

综合物探在煤田采空区勘查中的应用

通过使用综合物探方法在复杂地质条件下找水的应用效果,介绍了反射系数法、电磁成像系统的简单工作方法,阐述了在极度贫水区、黄土塬的残塬区的找水工作方法.     

Geomechanical forecast for distribution of fissuring areas in the saliferous measures of the Upper Kama potash salt deposit

Based on the mathematical modeling, it has been shown that forces of gravity generated by overlying deposits in the course of sedimentation create prerequisites for the formation of subvertical fissuring areas in saliferous measures. Prognostic estimates of distribution of these areas over the deposit are made. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 5, pp. 11–21, September–October, 2007.     

地球物理测井在煤田地质勘探中的应用

对地球物理测井在煤田地质勘探中的的普查、预测、勘探,以及开采设计中的普遍应用,进行了简要介绍。     

Estimate of Initial Stresses in Rock Mass of the Upper Kama Region Based on Block Hierarchical Model

Theoretical estimate of regional and local initial stresses in the rock mass of the Upper Kama deposit was made by the finite-element method on the basis of geomechanical models designed according to geological and geophysical data. Practical recommendations are given for taking into account the results obtained in developing the systems of potash deposit mining, as well as in designing the underground structures for industrial and civil purpose.     

多种物探方法在武定铁铜矿勘查中的应用

遵循"区域开展,面中求点"的找矿模式,在武定铁铜矿整装勘查区应用磁法进行面积性工作,确立了异常的区域。同时,根据所划分的磁异常开展音频大地电磁测深工作,划分出地下岩层的界线及埋深等情况,在含矿层位落雪组下部圈定了一个低阻地质异常体。磁法资料延拓显示低阻地质异常具有深源特性,与大地电磁测深解释剖面有较好的对应关系;进一步采用双频激发极化法对该低阻地质异常体进行验证,结果显示该异常体具有较强的极化特性。结合地质资料综合推断该异常体为铁铜矿(化)体,为地质找矿提供了可靠的地球物理证据。     

阴离子对熔盐浸取法从钾长石中提钾的影响

研究采用熔盐浸取法从钾长石中提取钾的工艺,分别选用不同阴离子的钙盐,比较出选择不同助熔剂时其阴离子对钾长石中钾溶出率的影响,确定了最佳助熔剂为CaCl2.     

综合物探方法在航磁异常查证中的应用

利用已有的地质、钻探资料,结合当前地面高精度磁测成果,缩小找矿靶区,结合该区的物性特征,布设少量的磁、重、电综合剖面是一种快速评价找矿前景的有效方法.河南省社旗县青台-唐河县源潭航磁异常查证通过1∶1万地面高精度磁法扫面工作,确定了12个局部异常区,缩小了找矿坝区,结合该区物性特征,选择了磁、重、电联合剖面综合测量,引...     

三维地震物探技术在宁夏金凤煤矿三分区勘探中的应用研究

结合金凤煤矿二、四分区已有的地震勘探资料,通过踏勘和理论分析论证,针对复杂的地质条件和开采技术,对本矿区三分区实施了三维地震试验方案,采用地震解释组合体软件（IESX）、可视化软件（GeoViz）以及地质绘图软件（CPS3）对原始数据进行处理和分析,认为T12、T15、T18波主要是由十二、十五、十八号煤层引起的复合反射波,连续性好,易连续对比追踪。通过三维地震异常解释断点160个,解释断层12条,其中正断层11条;异常显示煤系地层总体形态为背斜构造,轴部位于勘探区中部,背斜构造轴向NNE转近NS,东翼较陡,西翼稍缓。因此,通过对三维地震勘探可有效解释矿区褶皱、断层构造、煤层深度、起伏形态等特征,可为矿井开发建设提供较为可靠的地质资料。     

煤矿采空区瞬变电磁法物探应用实例

随着城镇化进程的加快,建筑公路铁路桥梁的建设也逐渐向地质条件较差的采空区推进。为探寻进行采空区物探评价的有效方法,开展了瞬变电磁法在邯郸峰峰矿区某采空区物探的实践应用。在原有地质资料的基础上,详述了瞬变电磁法的基本原理以及测点测线的具体布置方案以及数据处理方法;并对所取得的视电阻断面图进行实例分析,且对视电阻率异常区域进行了钻探验证。实践表明,该方法的应用可以准确反映异常区的位置和深度,而且还展现了异常区的影响范围,是较好并且直观的呈现手段。     

太行山中段超大型钾长石矿床成矿地质条件分析

通过对河北省灵寿县南营乡上水泉洼钾长石矿床的普查地质工作,结合区域找矿及区域地质资料分析,太行山中段太古界阜平群及五台群区域变质岩系中赋存有6个超大型钾长石矿床.通过对超大型钾长石矿床区域成矿背景,成矿地质特征的研究,总结了矿床的成矿地质条件.