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一般说来,随着衰老矿井产量的减少,全员效率必然呈下降局势。所以,在矿井老化、生产萎缩的情况下,如何提高全员效率是一个特殊的问题。一、提高全员效率的制约因素制约衰老矿井提高全员效率的因素很多,但主要因素有三个: 一是储量减少,“战场”收缩、生产萎缩。以开滦唐家庄矿为例,经过近70年的开采,剩下的多是煤柱和边角残煤,受井田范围和煤层赋存条件的制约,“小采面、大系统”的特点十分突出,相应增加了准备工作量。如掘进率,1991年比1990年增加了38米/万吨。由于工作面走向短,造成搬家倒面次数
In general, with the decline in the production of old mines, full staff efficiency is bound to decline. Therefore, it is a special problem how to improve the efficiency of full staff in the condition of mine aging and production shrinking. First, to improve the efficiency of all the constraints Constrained aging mine to improve full efficiency of many factors, but there are three main factors: First, reduce reserves, “battlefield” contraction, production shrinking. Taking Kailuan Tangjiazhuang Mine as an example, after nearly 70 years of mining, most of the rest are coal pillar and residual coal residue. Due to the restriction of minefield area and coalbed conditions, the characteristics of “small mining face and large system” Prominent, a corresponding increase in the amount of preparation. For example, the rate of excavation increased by 38 m / ton in 1991 over 1990. As the face toward the shorter, resulting in the number of moving backwards