Deformation-wave processes under production face advance in coal and rocks

The article shows the deformation-wave behavior of geomechanical processes induced by coal production face advance. The enclosing rock mass response to mining is interpreted as the formation of a hierarchy of geomedium elements in the continuum subject to excess elastic energy behind the front of the vertical stress decrease. Parameters of the physical model of the process are given in terms of minetechnical situations.     

Types of orebodies on the basis of the occurrence depth and stress state. Part II: Orebody tectonotypes and geomedium models

The author has accomplished systematization of ore fields by their geomechanical conditions based on the analysis of their tectonic structures. It is established that natural stress fields in the same type geological and tectonic structures are similar in mining regions worldwide. The author has distinguished four geomedium models differentiating the change of the rock stress state with increase in the rock occurrence depth.     

Modern concept of block hierarchy in the structure of geomedium and its implications in geosciences

The article discusses and extends the known concept on higher of blocks in the structure of geomedium by Peive-Sadovsky. It is shown that interaction of structural geoblocks generates force moment. This allows construction of rotation model of geomedium, assumption of the existence of “rotation” waves and explanation of rheidity properties of geomedium. It appears that representative values of “rotation” wave velocities are close to the velocities of pendulum waves (μ-waves by Oparin).     

Automated System for Physical Modeling of the Stress-Strain State of Block Structures in Geomedium

Development of construction principles and creation of automated systems for physical modeling of the block geomedium behavior in the varying unequally component stress field are considered currently as one of the strategic problems in nonlinear geomechanics. The scheme of stand for physical modeling and measuring-computational equipment oriented to the solution for fundamental problems of geomechanics are presented.     

卷扬减速机构加载试验台的研制

介绍了卷扬减速机构加载试验台研制的意义,以及它在实际中的具体应用,对其系统方案、基本结构、控制检测系统和工作过程原理进行了阐述。研制的试验台可以实现对小吨位卷扬减速机构的综合性能检测,为真实模拟起重机各种卷扬起升工况、快速考核和综合评判卷扬减速机构可靠性提供实验手段。     

Soil anchors — the methods and machines for their installation

The application efficiency of anchors with a lock made of granular materials to strengthen soil body slopes is substantiated. Mechanics of interaction between an anchor and the geomedium is considered. The techniques and machines preferable for the anchoring are described, and their test data are reported. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 82–88, November–December, 2008.     

Modeling of anisotropic fissuring process in rocks

A mathematical model is offered to describe thermofluctuation processes of plastic deformation and fissuring in a geomedium. The kinetic coefficients are functions of temperature, mean pressure and stress deviator intensity.     

可移式多功能微机自动控制钻进实验台的研建

在总结原有的微机自动控制实大钻实验台和微机自动控制模拟微钻实验台研建经验的基础上，运用多项先进技术和最新研究成果，成功地研建了一套“可移式多功能微机自动控制钻进实验台”。介绍了实验台的研建过程及实验效果。     

铁尾矿在公路工程中的应用

通过对铁尾矿物理力学性质、颗粒组成、化学成分分析、理论推断和必要的实验室及小规模工业试验,证明铁尾矿在路面材料、替代河砂混凝土和路基回填料等方面应用的可靠性和技术要求.     

Using the Kaiser Effect in Composites for Stressed Rock Mass Control

Stress memory in consolidating composites in acoustic emission is studied experimentally to understand feasibility of its application in stress state control in rock mass. The tests show that, owing to uniformity and comparatively high responsiveness of acoustic emission behavior under straining, composite materials, when placed in a geomedium, allow highly accurate identification of tensor of actual stresses in it.     

一种新型智能化多功能液压凿岩机试验台

液压凿岩机需要进行定期的维修保养。当检修完成后,如果不进行系统完整的检测,就无法判定检修后凿岩机是否可以正常使用。另外,矿山需要系统检测的液压设备也很多,不可能针对每种设备都采购一种液压试验台,需设计一种多功能的智能型试验台来满足矿山各类液压设备的检测。这种新型智能化多功能液压凿岩机试验台采用了零泄漏逻辑阀,按测试对象的需求将相关油口进行组合,通过PLC控制与工控机联系起来,实现对凿岩机及矿山其他液压设备各项性能的检测。设计创意新颖,可实现的功能多,且性能先进。     

Transient one-dimensional wave processes in a layered medium

Waveguide properties of a block geomedium are studied by using a regular structure composed of elastic layers with elastic inertialess interlayers. The analytical solution of the problem is derived. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 41–54, March–April, 2007.     

Evolution of stress fields and induced seismicity in operating mines

The authors propose a new procedure for establishment of the space-time relationships between the quantity and energies of seismic events and the stress-strain state parameters using deterministic information on variation of geomechanical fields and the statistical analysis of the induced seismicity data. The new procedure has been verified under conditions of Tashtagol iron ore mine.     

露天矿台阶爆破岩石抛掷与堆积模型的研究

本文提出了台阶爆破岩石抛掷初始速度模型，抛掷角计算模型和抛掷与堆积物理模型，据此编制的计算机程序可以预测露天矿台阶爆破爆堆形状和岩石抛掷距离。     

液压式拆线机的设计及应用

针对电动机绕组拆除过程中存在的各种弊端,特研制了一种操作安全方便、使用范围广的液压式电动机拆线机。经过多次试验改进,液压式电动机拆线机解决了以往电动机绕组拆除过程中存在的多种难题,提高了电动机绕组维修的工作效率,延长了电动机的使用寿命,效果显著。     

大规格链条磨损跑合试验台设计及有限元分析

设计了一种新型大规格链条磨损跑合试验台,并对其系统平台和滑动平台进行了研究分析。所设计的试验台采用燕尾槽导向,T形槽配合液压缸带动梯形螺栓自动松紧,在保证了结构强度和加载精度的同时,提高了张紧力和测试效率;继而采用ANSYS Workbench软件对系统平台和滑动平台进行了仿真分析。结果表明:滑动平台的最大变形量发生在链轮边缘,最大变形量为0.179 mm,变形量小于2 mm;系统平台的最大应力集中在螺栓尺寸突变处,应力值为234.38 MPa,小于其许用应力392.5 MPa。该试验台结构合理,满足强度和刚度的设计要求。     

露天爆破炮烟和粉尘初期性状模拟及防治技术研究

爆破烟尘是露天开采难治理的重要污染源,受爆破飞石、冲击波等有害效应影响,炮烟和粉尘蘑菇尘云的初始浓度和性状难以进行源头直接测试,致使针对爆破炮烟和粉尘的治理技术欠缺、方案设计和关键技术参数确定无据可依。本文针对露天(矿)爆破蘑菇烟尘的瞬时生成、高速强扩散特性,建立露天台阶深孔爆破粉尘生成模型,用数值模拟技术研究爆破破岩和抛掷堆积过程中爆破烟尘生成、扩展的初期特性,对台阶爆破烟尘进行了高速DIC技术现场测试,将DIC试验获得的实际烟尘云扩散结果与数值模拟成果进行对比研究,发现烟尘数值模拟研究成果与现场实测结果高度吻合,确定了露天在爆破烟尘生成、扩散初期进行爆区源头环保治理的技术方案。研发了与露天台阶深孔爆破匹配的爆炸水雾场生成技术,为露天爆破炮烟和粉尘的源头治理提供了技术支撑。在白云铁矿露天深孔爆破炮烟和粉尘的爆炸水雾降尘试验中取得了粉尘浓度降低40%以上的显著降尘效果。     

某铁矿石选择性絮凝脱泥-阳离子反浮选脱硅工艺研究及工业应用

采用选择性絮凝脱泥-阳离子反浮选工艺流程对某细粒铁矿石进行了试验研究。结果表明,采用选择性絮凝脱泥．阳离子反浮选流程闭路试验可获得铁精矿品位为65．50％,回收率为83．09％的较好指标。依据试验室试验参数,在年处理量15万t的小型选矿厂进行了工业生产调试。采用多段脱泥,可以解决矿泥对浮选的影响。现场获得铁精矿品位64．77％,回收率78．65％的工业指标。     

ZP-1型钻杆疲劳试验台

简述了ZP－1型钻杆疲劳试验台的试验原理、主要技术性能参数和设计指导思想，并着重介绍了试验台机械传动系统和加载系统的组成、设计要点及试验台的试验情况。     

基于LabVIEW的PID电动机远程实验平台

提出并设计出一种通过电动机PID控制的实验平台,该平台采用嵌入式系统实现PID算法及电动机控制,通过基于LabVIEW开发的上位机,实现人机交互和及电动机运行状态分析,最终能够完成电动机PID控制的相关实验。同时,在上位机构建Web服务器,使该平台具有远程实验功能。