Rock breaking under water jet impact is an extremely complicated process.
水射流作用下岩石的破碎是一个极为复杂的过程,对水射流作用下岩石破碎机理的认识依然是众说纷纭,由此对水射流破岩机理有多种不同的学说。
The compressive deformation of broken rocks is obviously characterized by time-dependence.
破碎岩石的承压变形具有明显的时间效应,文中自行设计了破碎岩石承压变形仪,结合摆锤杠杆式压力机建立破碎岩石的蠕变测试方法,并针对破碎砂岩开展了相关蠕变试验研究,总结得出蠕变变形与轴向载荷、破碎块径等的关系。
Using multi-material fluid-structure interaction method and ALE method as well as explicit dynamical finite-element method,the complicated process of numerical simulation of rock fragmentation by high-pressure jet is studied according to the characteristics of the process.
针对高压水射流破碎岩石的特性,结合多物质流固耦合算法与ALE(任意拉格朗日欧拉)算法,利用显示动力学有限元程序对该复杂过程进行数值模拟,得出岩石破碎过程中的流体与固体的相互作用及岩石的破碎动态扩展过程并对连续射流冲击与脉冲射流冲击对岩石的切割效果进行对比。
This paper introduces experiments and research results of rock fragmentation process and drilling technology with acoustic spectrum analysis used in Russia.
介绍了俄罗斯采用声谱分析方法研究岩石破碎过程和钻探规程的情况和结果 ,讨论了岩石破碎与声波的关系 ,说明了钻进时如何测量声波 ,分析了孔底功率、碎岩声波和钻头胎体温度与钻探工况 (抛光、正常钻进、烧钻 )的关
According to the fractal theory,a fractal model for consuming energy on rock fragmentation is provided through energy consumption analysis of rock fragmentation in rotary drilling.
该模型显示出旋转钻井岩石破碎能耗不仅与钻压、转速等钻井参数关,还与地层岩石破碎体的尺度和粒度分布分形维数等因素有关。
At first, the relation of acoustic emission with rock fracture mechanism is investigated.
首先探讨了声发射与岩石破碎机理的关系，然后介绍了把声发射传感器联接到锚杆孔钻机上，用反向传播神经网络“识别”岩石破碎特性和岩石种类。
Consisting of broken rock, coal, or ore moved from its place of origin.
碎屑状的由从开采地移来的破碎的岩石、煤块或矿物组成的
Intensely fractured rocks may render traps ineffective by causing leakage.
强烈破碎的岩石造成石油、天然气泄漏而使得圈闭变得不起作用。
Study on Rock-breaking Rule in Deep Wells and Rock-breaking Fractal Mechanism;
深井岩石破碎规律及破碎的分形机理研究
A new evaluation method for rock-crushing efficiency based on crushing work ratio
一种基于破碎比功的岩石破碎效率评价新方法
Thermo-hydro-mechanical coupling in fractured rock
已破碎岩石中热—水—力学的耦合.
Weathering applies to crumbling and breaking down of rock into smaller pieces.
风化指的是岩石破碎或崩裂成小块。
Chunks of the overlying rock may break off and become a part of a sill.
上复岩石的碎块可能破裂并成为岩床的一部分。
Rock crushing simulation and cutting bit optimum design based on fracture and damage mechanics
基于断裂损伤的岩石破碎模拟与钻头优化设计
Shaft Construction with Water Gushing under Soft and Cracked Surrounding Rock
大涌水松软破碎岩石条件下的竖井施工
One that breaks, as a machine for breaking up or crushing a substance, such as rock, coal, or plant fibers.
轧碎机，破碎机用来轧碎或碾碎一种物质，如岩石、煤或植物纤维的机器
We should expect rocks to be broken in this way near the taps of high mountains, where it is very cold.
我们估计，寒冷的山顶附近的岩石就是这样破碎和剥落下来的。
These are useful in hard rock mining where high brisance, high shattering effects, are desired.
这种炸药，对需要高威力、高破碎效应的坚硬岩石矿，是有用的。
DESIGN STUDY ON A PROTECTING STRUCTURE FOR A LIMESTONE CRUSHER
某石灰岩矿石破碎站防护结构设计研究
This machine used in crushing material in small. The material can be clay, shale, gangue, limestone, cement, iron, ore, etc.
该机适用于粘土、页岩、煤矸石、石灰石、水泥熟料、铁矿石等物料的中细破碎。
The rock must be broken by blasting.
硬岩须用爆破的方法破碎。
A machine that crushes rock or ore.
颚形碎石机一种碾碎岩石或矿石的机器
An unconsolidated mixture of rock fragments or pebbles.
砾石岩石碎片或卵石的松散的混合物
The pyroclastic rock fragments comprise quartzite, schist, gneiss, basalt, andesite, rhyolite and quartz.
火成岩的碎块成分主要为石英岩、岩、麻岩、武岩、山岩和流纹岩.