工作面

Markets are located in Shanxi, Shaanxi, Inner Mongolia, Liaoning, Heilongjiang, Shandong, Anhui, Gansu, and other major coal-producing area, equipped with more than 30 large-scale coal enterprises more than 400 fully mechanized coal mining face.

市场分布在山西、陕西、内蒙、辽宁、黑龙江、山东、安徽、甘肃等全国主要产煤区，装备了30多家大型煤炭企业的400余个综采工作面。

The study of impact of dirt band on top coal drawing mining;2. The paper has studied the caving characteristics and technology on the fully-mechanized caving mining working face in structural complex thick seam containing dirt band are studied.

通过对综放工作面含夹矸结构复杂段顶煤放出特征和放煤工艺的研究，提出选择两刀一放单轮间隔放煤方式，有利于提高煤炭回收率，降低原煤含矸率。

By analogue simulating test, the paper discusses fully-mechanized sub-level with dirt band, the top-coal caving and drawing property , the caving procedure and drawing law, and the dirt band critical thickness related to complex structure thickness seam of 2429S.

主要以实验室相似模拟实验为主，对含夹矸复杂结构厚煤层中的2429S综放工作面含夹矸顶煤的冒放性、放煤工艺及放出规律、夹矸层极限厚度的确定等问题进行了论述，并指出了含夹矸顶煤的活动规律和放顶煤开采的技术措施。

Application of fuzzy mathematics on recognition of fault style in mining and driving face.

胡建平。模糊数学在采掘工作面断层类型识别中的应用。

This article introduces the situation of using the longhole shock blasting technology to prevent gas and coal outburst in driving face ,analyzes the application result.

介绍了在掘进工作面应用深孔松动爆破技术预防煤与瓦斯突出的实施情况，并对应用效果进行了分析。

The paper intrtroduced some partial ventilation management methods at driving face in coal tunnel.

介绍了煤巷掘进工作面局部通风管理方法及管理经验。

By doing so, the temperature ion driving face can be lowered down by 3~7℃ while that on coal mining face by 3~5℃, greatly improved the operation condition and provides a reference for coal mines with similar condition.

系统运行以后，掘进面温度可以下降3~7℃，工作面温度可以降低3~5℃，从而大大改善了采、掘工作面的作业条件，并为类似条件下研究热害治理问题提供了思路。

Basing on the theory of two-phase flow of gas and solid, and the characteristics of coal mine driving working face , using the discrete phase models of computational fluid mechanics to simulate the dust concentration during the ventilation process of coal drift driving with exhaust ventilation.

根据气固两相流理论，针对矿井掘进工作面的特点，采用计算流体力学的离散相模型对掘进工作面通风过程中粉尘浓度进行数值模拟，总结抽出式通风掘进巷道中粉尘浓度的沿程分布及变化规律。

Mine transient electromagnetic method is one of mainly geophysical methods, which are used to predict water inrush structures nearby the roof, bottom and driving face in roadway. Compared with ground transient electromagnetic method, this technique has many advantages: high resolution, small volume effect, flexibility and high efficiency. However, relatively slow development of its fundamental theory makes it become an immediate problem to be solved.

矿井瞬变电磁法勘探是预测巷道顶、底板和掘进工作面附近突水构造的主要物探方法之一，与地面瞬变电磁法勘探相比，该方法具有分辨率高、体积效应小、灵活和高效等优点；但其基础理论的发展却相对滞后，使之成为矿井瞬变电磁法勘探技术中亟待解决的问题。

Boom after dumping bucket and turning to face and decentralization in preparation for the next cycle of mining operations.

卸土后将动臂及铲斗回转并下放至工作面，准备下一循环的挖掘作业。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。