1) caving for relieving
崩落卸压
2) Caving
[英]['keɪvɪŋ] [美]['kevɪŋ]
崩落
1.
Law of Orebody Caving by Block Caving System;
阶段崩落法中的矿体崩落规律
2.
Discuss on a simulated system for rock mass caving and large-scally;
岩体大规模自然崩落模拟系统的初探
3.
Numerical simulation of natural caving is conducted from meso-mechanics view through particle on the basis of method(PFM).
采用颗粒流方法对矿岩的自然崩落规律进行数值模拟计算,提出在颗粒模型中确定细观接触力学参数及模拟初始地应力的方法。
3) Laubscher's caving chart
Laubscher崩落图
1.
Research on cavability of orebody based on Laubscher's caving chart;
基于Laubscher崩落图的矿体可崩性研究
4) borehole wall breakout
孔壁崩落
1.
Especially for the definition and analysis of induced fissures created by hydraulic fracturing and borehole wall breakouts,there were many advantages of this equipment an.
通过一个300m和一个800m典型钻孔的实际测试结果,揭示超声波钻孔电视在地应力测量研究领域中的几个应用实例,如:岩层裂缝的检测、地应力测试段的选定、岩芯定向,特别是对水压致裂法形成的诱发裂缝和孔壁崩落的测定及分析,在地应力测量研究中将可显示出较强的优势,尤其是最大水平主应力方向的获取,更优于其它方法。
5) wellbore avalanche
井眼崩落
1.
The echo time image of cir- cumferential borehole imaging log(CBIL)can visually depict the behaviors of borehole wall such as wellbore avalanche, fracturing under reservoir bed stress.
井周声波成像测井(CBIL)回波时间图像能够直观地反映储层应力作用下的井壁表现如井眼崩落、裂缝等,根据这些应力响应特征可以判断储层的应力方向。
6) caving method
崩落法
1.
The structural parameters used all along by the pillarless sublevel caving method in Gongchangling Underground Iron Mine show the section height of 60 m,the subsection height of 12 m,and the caving length of 1.
弓长岭井下铁矿无底柱分段崩落法一直沿用的结构参数是：阶段高度60m,分段高度12m,崩矿步距1。
补充资料：冲击波超压与动压