高手拜托翻译一下吧,不胜感激!
来源:百度知道 编辑:UC知道 时间:2024/05/11 19:54:42
由表17-2可知,斜井的应用范围在很大程度上扩大了。由于采用主斜井、副立井综合开拓,斜井的深度相当深,改变了过去斜井主要用于开采煤田浅部的中小型矿井的状况。
采用平硐开拓只需开一条主平硐,其回风井筒可以采用平硐、斜井或立井。对于某些瓦斯涌出量很大、主平硐很长的矿井,井下需要的风量大,长平硐通风的风阻,难以保证矿井通风的需要,。条件合适时,可以开通风用的立井。图17-11所示为重庆中梁山煤矿平硐-立井的综合开拓,主平硐1全长两千多米,另开副立井2作进风用,并担负与其以下水平之间的辅助提升任务。其下水平出煤则经安斜井3提至平硐水平,再转运井外。对对于以平硐开拓的矿井深部,如无布置阶梯平硐的条件,根据地形,后期可用立井或斜井开拓,,图17-12时钱其永平硐开拓浅部,后期用立井开拓深部的例子,当须加大矿区开发强度时,可以同时开发平硐水平以上的煤层,即上部的平硐和下部的斜井(或立井)同时开发,共用一个工业场地,其井下部分相当于两个水平同时开采,但应注意上下水平的压茬关系。
在特殊地形条件下,如地面为自然坡度较大的沟谷,在地面布置斜井井口车场有困难,可以开一段平硐为通道,以利于布置斜井井口车场,在向下掘进斜井。
应该注意,采用综合开拓时,不同形式的井筒在地面及井下的联系与配合是十分重要的。以斜井-立井开拓为例,如井口相近,则井底相距较远,井底车场布置、井下的联系就不大方便;如井底相近,则井口相距较远
As mentioned earlier, Incline pioneering has many advantages, large belt Incline Incline comes to wells, in both technical and economic superior, But Deputy Incline supporting more difficult to upgrade and ventilation are detrimental (particularly deep coal mining, Incline sub-assisted upgrade link, the ability of small; long lines and ventilation, the resistance, a small amount of wind. unable to meet production requirements). Heels as belonging to make up for this deficiency, so we can Incline main wells belonging to a shaft, The principal Incline-up belonging to the realization of large and extra large integrated mine development. 17-10 shown in the figure for China's large coal mine in Huainan new packed Incline deep mining, gas emission increase, Supplementary to upgrade and transport problems in coal mine deep shaft at one location. 2.40Mt/a to expand production capacity. Mine production in some of the remodeling and new wells designed to consider this approach . In recent