caving的例句大全

Roof caving is one of the most serious engineering disasters in underground mining activities of metal mines. It not only delays the progress of production, but also threats against underground workers.

顶板垮落是金属矿山地下开采中严重的工程灾害之一，它不仅影响采矿进度，同时也对井下作业人员生命安全构成威胁。

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A study on ore drawing and computer-based production scheduling in block caving method

自然崩落法放矿与计算机排产方法的探讨

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Computer method for draw control in block caving mine

崩落法放矿控制的计算机方法

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Therefore, it is foundation of coal mining and design to provide accurate information of caving zone and water flowing fractured zone before and after mining.

准确地提供采煤前后顶底板岩层冒落带高度、导水裂隙带高度及其形态变化等信息，是安全采煤可行性研究和设计的基础。

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Two step Drawing Research on Block Caving with Floor Pillar System

有底柱阶段崩落法的两步骤放矿研究

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Present Status of Block Caving Development and Its Application Prospect in China

我国自然崩落法发展现状与应用展望

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Ennis stood as if heart-shot, face grey and deep-lined, grimacing, eyes screwed shut, fists clenched, legs caving, hit the ground on his knees.

埃尼斯的心被狠狠地击中了。他面如死灰，表情扭曲，闭上了眼睛。双拳紧握，两腿一软，重重地跪在地上。

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Gob of sublevel caving will not cause ground surface downgoing.

崩落法开采形成的空区不会对地表造成沉降危害。空区不用处理，可以任其冒落；

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Based on the above analysis, we draw the following conclusions: 1 、 The main deformation zone is located to the uplift in the leading edge and the tensile cracks and caving ground in the middle and rear end of the slip mass.

综合以上分析研究，得出以下几个结论：1、爬家岩滑坡主要变形区域位于滑体前缘的隆起和滑体中、后部的拉裂缝及陷落区，其变形模式为滑移&拉裂型。

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This article is aimed at researching low pressure complex caving ground in Jilin area, studied mechanism of formation instability, analyzed through X-ray diffraction mineralogical analysis and SEM imagery structural analysis.

本论文针对吉林油田低压复杂易坍塌地层，对地层的失稳机理进行研究，通过X&射线衍射矿物分析，扫描电镜成像结构分析等实验对易坍塌地层进行分析。

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Discrete Element Simulation of Ore Drawing by Caving Method in Mining

崩落采矿法放矿的离散元仿真

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