摘要
文章分析了平坦地形、近水平、缓倾斜赋存的大型露天煤矿分区开采时相邻条区间的直角缓帮、扇形、重新拉沟三种转向方式及其特点,推荐优先采用扇形转向方式进行条区间的过渡。当采用重新拉沟方式转向时,反向重新拉沟方式优于同向重新拉沟,并在一定工作帮坡角、采深、工作线长度条件下,对两种不同的拉沟位置产生的重复剥离量、内排空间、基建工程量等进行了计算。
The paper analyzed the three retuning methods and the features of the right-angle slow wall,fan type and re-box cutting near the neighboring mining panel when the panel mining was conducted in a large surface coal mine with a flat topography and a horizontal and gently inclined seam deposit.And the fan type retuning method was priority provided to the transition between the panels.When the re-box cutting method was applied to the retuning,the reversed re-box cutting method would be better than the same direction re-box cutting.Under the certain working wall and slope angle,mining depth and work ling length,a calculation was made on the re-overburden stripping volume,the in-pit dumping space,the capital construction engineering workload occurred from the two different box cutting locations.
出处
《煤炭工程》
北大核心
2011年第12期1-3,7,共4页
Coal Engineering
关键词
露天煤矿
相邻条区
转向方式
拉沟位置
surface mine
neighboring mining panels
turning method
box cutting locations
