岩石破碎学
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岩石破碎学_百度文库
岩石破碎学是一门研究岩石结构、性能及其相关作用的重要分支，它的研究内容主要有岩石性质研究、岩石层状结构分析以及岩石力学性能研究。 它为岩石爆破、砂岩矿物提取加工 2014年6月29日 13 个回答 默认排序 知乎用户 34 人 赞同了该回答 作为无上荣光的 地质队员 ，我们的选择是： 1.很小的石头用这个： 就因为这个，我们给每天在帐篷捣样品、做 如何有效破碎岩石？ - 知乎岩石破碎学pdf下载,内 容 简 介 本书是高等学校探矿工程专业高年级学生的《岩石破碎学》教材（适用于 60学时左右）。全书的内容包括：岩石的强度理论和破碎理论；岩石的物理 岩石破碎学_PDF图书下载_屠厚泽，高森_免费PDF电子书 ...
岩石破碎学(第一讲).ppt - 原创力文档
2019年9月14日 由于碎岩过程都是工具向岩石输入一定的能量而产生相应数量的碎岩体积。 碎岩比功就是破碎单位体积岩石所输入的能量。 碎岩比功既是物理量又是碎岩效率指标 岩石破碎学pdf下载,内 容 简 介 本书是高等学校探矿工程专业高年级学生的《岩石破碎学》教材（适用于 60学时左右）。 全书的内容包括：岩石的强度理论和破碎理论；岩石的物理 《岩石破碎学》PDF下载_PDF扫描版下载_PDF免费电子书 ...2020年8月24日 岩石破碎学分析.ppt 56页 内容提供方 ： 130****9768 大小 ： 5.27 MB 字数 ： 约2.15千字 发布时间 ： 2020-08-24发布于福建 浏览人气 ： 17 下载次数 ： 仅上传者 岩石破碎学分析.ppt 56页 - 原创力文档PDF文件，前往提取 目录 1 第一章 绪论 1 第一节 岩石破碎学是采矿工程的基础科学 1 第二节 岩石破碎学的内容和任务 1 第三节 岩石破碎学的研究方法 4 第二章 强度理论 6 第一 《岩石破碎学》绝版PDF 一个在职研究生的抽屉我们已与文献出版商建立了直接购买合作。 你可以通过身份认证进行实名认证，认证成功后本次下载的费用将由您所在的图书 ...岩石破碎学 - 百度学术
RESEARCH ON FORCE CALCULATION MODEL OF HOB IN TBM
The Full Face Hard Rock Tunnel Boring Machine (TBM) is widely used in the construction of tunnel engineering projects, and the stress of its hob in the process of rock breaking has always been the key problem in the design and construction stages of TBM. In order to study the stress of the hob in the process of TBM rock breaking, this paper simplifies the Rock-breaking mechanism of TBM with different types of cutter tools and estimation of thrust force: MAO Hong-mei 1, CHEN Kui 2, FENG Huan-huan 2: 1. Railway Engineering Department, Shaanxi Railway Institute, Weinan 714000, China; 2.Rock-breaking mechanism of TBM with different types of cutter Aiming at the problems of low efficiency and high consumption of bits and drilling tools in drilling hard rock with conventional single bend screw motor, an impact screw motor is developed by adding an impact mechanism between the universal shaft of a common screw motor and the drill bit. The impact screw motor has dual functions of impact and orientation.Development of impact screw motor
Effect of microwave-induced fracturing of Chifeng basalt by a
Effect of microwave-induced fracturing of Chifeng basalt by a multi-mode cavity: LU Gao-ming, FENG Xia-ting, LI Yuan-hui, LI Shi-ping, SU Xiang-xin
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The Development of ϕ228.6 mm Hydro-Efflux Hammer
The Longtan- Maokou Formations in the ϕ 311.1 mm vertical section of Fuling Shale Gas Field are characterized by high hardness and poor drillability, resulting in short service life of drill bit, and low ROP. In order to improve the ROP in this interval, a ϕ 228.6 mm hydro-efflux hammer was developed, and the bench test was conducted. The results of bench test 2008年11月18日 Through analyzing the test result, it is shown that the change of testing samples is similar when impact is exerted on the vertical bedding and the parallel bedding when the impulse is less than 20 Ns, and the difference increases with the impulse increasing when the impulse is more than 20 Ns. At the same time, the expanding Effect of impulse and bedding on impact toughness of coalEstablishment and experimental verification of rock penetration load model for TBM disc cutters based on cavity expansion theory: ZHANG Kui 1,2, ZHANG Yu-lin 2, ZHENG Xue-jun 2, ZHOU You-hang 2, QIAO Shuo 3: 1. Post Doctoral Research Station of Mechanics, School of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, Establishment and experimental verification of rock penetration
Prediction Model and Numerical Simulation for Rock Fissure
In order to study the rock fracture and fissure propagation and evolution rule and to predict fissure (crack) length in the process of dynamic load intruding the rock, a mathematical model for describing relationship between the maximum impact force and the impact velocity during rock breaking was developed according to the Newton’s second law and the wave Based on previous studies on shale pore evolution and reservoir property improvement through in-situ heating of oil shale， this study clarifies that the improvement of shale reservoir properties through heating is realized by both the pore evolution and the thermal cracking. Pore evolution is mainly facilitated by organic matter cracking ...Progress in shale reservoir upgrading through in-situ heatingForce states of soils under shield cutting in excavation face based on Kӧtter equation: SU Wei-lin, LI Xing-Gao, JIN Da-long: Key Laboratory of Urban Underground Engineering of Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaForce states of soils under shield cutting in excavation face based In order to solve the problem of high friction and backing pressure in the process of horizontal well drilling,and improve the efficiency of horizontal well drilling,the hydro-oscillator was developmented.Based on the theory of mechanical vibration,downhole equipment would transfer static friction into kinetic friction between the drilling tools and borehole wall Development and Pilot Test of Hydro-OscillatorRock-breaking efficiency of TBM based on particle-size distribution of rock detritus: YAN Chang-bin 1, JIANG Xiao-di 1, LIU Zhang-heng 1, YANG Ji-hua 2, MIAO Dong 2: 1. School of Civil Engineering, Zhengzhou University, Zhengzhou 450003, China; 2. Yellow River Engineering Consulting Co., Ltd., Zhengzhou 450003, ChinaRock-breaking efficiency of TBM based on particle-size
Optimal drilling pressure of cone-tipped cutters based on ...
Optimal drilling pressure of cone-tipped cutters based on characteristic size of hard and brittle rocks: TAN Hao 1,2, JI Hong-guang 1, ZENG Zhi-yuan 3, LIU Zhi-qiang 2: 1. University of Science and Technology Beijing, Civil Engineering and Resources Engineering, Beijing 100083, China; 2. Beijing China Coal Mine Engineering Co., Ltd., Beijing 100013, Effect of microwave-induced fracturing of Chifeng basalt by a multi-mode cavity: LU Gao-ming, FENG Xia-ting, LI Yuan-hui, LI Shi-ping, SU Xiang-xinEffect of microwave-induced fracturing of Chifeng basalt by a With the development of global space technology, technologies of planet soil detection, sampler and return will become more and more important in the field of deep space exploration in the future. The space environment detection and sampling tasks in deep space exploration have the characteristics of high vacuum, low gravity, intense Development Trend and Application of Star Soil Sampler Impact
Numerical simulation and experimental investigation on rock ...
Numerical simulation and experimental investigation on rock fragmentation under combined dynamic and static loading ZHAO Fu-jun 1, XIE Shi-yong 1, 2, PAN Jian-zhong 2, HUANG Shou-yuan 1: 1. School of Energy and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China ;2 Ganzhou Nonferrous Metallurgy Research
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