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顿巴斯的立井井筒要穿过中石炭纪和石炭纪的泥质板岩、粉砂岩、石灰岩、煤层和夹层等沉积层,其抗压强度为20～160MPa,产状由缓倾斜到急倾斜,夹在石灰岩与砂岩之间的煤层含水层能造成矿井浸水。在大多数情况下,矿井水的硫酸盐含量为1.5～5g/t。 为了加固井筒,主要采用厚度为400～500mm、强度为B15～22.5级的混凝土。在复杂的条件下,如果井筒穿过不稳定岩层,则构造断层带、采空区以及与井筒相邻的巷道地带就采用整体钢筋混凝土井壁或钢架混凝土井壁。与整体混凝土井壁相比较,这两种井壁的支护速度会降低30～50％,作业劳动量要增加30～40%,用ΠД和СК型
The vertical wellbore of Donbass passes through the sedimentary layers of the Middle Carboniferous and Carboniferous argillaceous slate, siltstone, limestone, coal seam and interlayer with a compressive strength of 20 ~ 160MPa and a gentle slope , Coal seam aquifers sandwiched between limestone and sandstone can cause mines to flood. In most cases, mine water sulfate content of 1.5 ~ 5g / t. In order to reinforce the wellbore, the main use of the thickness of 400 ~ 500mm, strength of B15 ~ 22.5 grade concrete. Under complicated conditions, if the wellbore traverses unstable rock formations, the fault zone is constructed. The mined-out area and the roadway adjacent to the wellbore will be either monolithic reinforced concrete shaft walls or steel-framed concrete shaft walls. Compared with the overall concrete shaft wall, these two kinds of shaft wall support speed will be reduced by 30 ~ 50%, work to increase the amount of work 30 to 40%, with ΠД and СК type