long hole benching

用法例句

Emphases were placed on working experience on surface bench mining in limestone mine and relevant theories.

以在水泥矿山露天台阶式开采的经验和相关理论为主 ,分析了与产生根底有关的六个方面的原因 :地质条件恶劣、堵塞长度不足、抵抗线太小、装药量不足、超深不足、起爆技术不合理 ,并提出了相应的减少爆后根底的一些对策 ,并列举了一个工程实例。

Research of deep hole step burst CAD system;

深孔台阶爆破CAD系统研究

Study on Fragmentation Forecasting for Length Hole Bench Blasting;

中深孔台阶爆破块度分布预测的研究

Disscussion on Methods to Reduce Unit Volume Consumption of Dynamite for Moderate-long Hole Bench Blasting

中深孔台阶爆破降低炸药单耗方法的探讨

A Practice of Presplitting Blast for Long Hole Benching in Multi-Governing Factor Condition

多控制因素条件下深孔台阶预裂爆破的实践

Digital analysis of stress distribution and some parameters of deep hole bench blasting;

深孔台阶爆破应力场及若干设计参数的数值分析研究

Experimental Study on Seismic Effect of Deep-hole Bench Blasting in Open-pit and Its Numerical Simulation;

露天深孔台阶爆破地震效应试验研究与数值模拟

Occurring Reason and Its Preventive Measure of Toe Rock in Deep Hole Bench Blasting in Ganchong Hillside Opencast Mine

甘冲山坡露天矿台阶深孔爆破根底产生原因及预防措施

The depth vernier gauges can be used to measure depth and step.

深度游标卡尺用于测量深度，台阶等。

STEP HOLE DRILLING METHOD FOR MEASURING PLANE RESIDUAL STRESSES IN DEEP LAYER

钻阶梯形孔法测量深层平面残余应力

THE HIGH BENCH LONG HOLE MINING IN ANQING UNDERGROUND COPPER MINE

安庆铜矿高阶段大直径深孔采矿法实施方案

Application of High Bench Large Diameter Longhole Blasting Technology in Anqing Copper Mine

高阶段大直径深孔爆破技术在安庆铜矿的应用

Distribution structure and parameter determination of medium-length holes in stage room mining method

阶段矿房采矿法中深孔布置结构及参数的确定

Application of Drilling Platforms in Group Piles Foundation Construction in Deep Water

钻孔平台在深水群桩基础施工中的应用

Design and Construction of Marine Boring Platforms for Foundations Resting in Uncovered Rock in Deep Water

海上深水裸岩基础钻孔平台设计与施工

Building of Construction Platform for Steel Casing of Bored Piles in Deep Water and Uncovered Rock

深水裸岩河床上钻孔桩护筒施工平台的搭设

The Study and Numerical Simulation of Influence Factors for Sub-drilling of Bench Blasting;

台阶爆破超钻深度影响因素的研究与数值模拟

Similar Experiment of High-Level Large-Diameter Long-Hole Mining in the Anqing Copper Mine

安庆铜矿高阶段大直径深孔采矿相似材料模拟实验

EARTHQUAKE EFFECT OF HIGH-LEVEL LARGE-DIAMETE R LONG HOLE BLAST IN ANQING COPPER MINE

安庆铜矿高阶段大直径深孔爆破地震效应的浅析

STUDY ON STABILITY OF STOPE IN ROOM HIGH-LEVEL LARGE-DIAMETER LONGHOLE MINING IN ANQING COPPER MINE

安庆铜矿矿房高阶段大直径深孔采矿采场稳定性研究