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近年来,我国煤矿矿井建井工期一般较长,大中型矿井需要6～8年以上,而年产300万吨以上的特大型矿井,则需8～10年,甚至10年以上。分析其工期长的原因,有地质水文条件日趋复杂、井型大、表土层更深等客观因素,也有施工准备不充分、施工方案和施工组织不合理等主观因素。而其中若干客观因素,只要通过科学和合理组织施工的主观努力,也是能缩短建井工期的。下面就结合几年来在施工实践中的体会谈一些认识。
In recent years, coal mine construction wells in China generally longer duration, large and medium-sized mine takes 6 to 8 years, and with an annual output of more than 3 million tons of extra-large mines, you need 8 to 10 years, or even 10 years. Analysis of the reasons for its long duration, with the increasingly complex geological and hydrological conditions, well-type, the topsoil deeper objective factors, such as inadequate construction preparation, construction programs and construction of unreasonable subjective factors. However, some of these objective factors can shorten the construction period as long as subjective efforts are made through scientific and rational organization and construction. The following combination of years of experience in construction practice to talk about some understanding.