为了积累采煤引起烟囱的倾斜及其变化过程,对623工作面采煤引起烟囱倾斜进行了观测,现将有关观测的主要成果介绍如下: 1、烟囱位置与结构市交通局熔化沥青烟囱位于田屯煤矿工业广场西侧,在16层煤623工作面中部正上方(如图1)。烟囱是红砖沙浆砌成(如图2),下部基础3.0米,全部料石,直径2.78米,高度21.26米,建于1976年。 2、地质采矿条件含煤地层为石炭纪太原统,自上而下 In order to accumulate the chimney tilt caused by coal mining and its changing process, the chimney tilt caused by the coal mining in 623 working face was observed. The main results of the observation are as follows: 1. Chimney location and structure City Bureau of Transportation melted asphalt chimney is located in Tian Tuen Coal Mine Industrial Plaza on the west side, in the 16th layer 623 coal face above the middle (Figure 1). Chimney brick brickwork is red brick (Figure 2), the bottom of the base 3.0 meters, all the stone, diameter 2.78 meters, height 21.26 meters, built in 1976. 2, geology and mining conditions coal-bearing strata of Carboniferous Taiyuan system, top-down