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英国道梯6×180t垛式液压支架(以下简称DT6×180t支架),84年4月在我矿N1713西薄煤层对拉普采工作面安装了85架。工作面煤层平均厚度1.05m,倾角3～6°,I级顶板,周期来压不明显,含少量黄铁矿结核,顶、底部含泥质。通过84年8个月生产实践,证明该支架在整体结构上暴露了许多问题,拆出工作面停止使用,对此,我们作了以下技术改进。 DT6×180t支架(见图1)主要由前后底座、前后梁、立柱、单作用降柱千斤顶和液压系统等组成。使用中支架稳定性差,易倾
British Douglas 6 × 180t stacker hydraulic support (hereinafter referred to as DT6 × 180t bracket), in April 84 in mine N1713 West thin coal seam on the Lapu mining face to install 85. The average thickness of coal seam in working face is 1.05m with dip angle of 3 ~ 6 °. The grade I roof is not obvious with periodic pressure and contains a small amount of pyrite nodules with muddy top and bottom. Through 84 years of 8 months of production practice, that the stent in the overall structure exposed many problems, demolition of the face to stop using, we made the following technical improvements. DT6 × 180t bracket (see Figure 1) mainly by the front and rear base, front and rear beams, columns, single-acting down jack and hydraulic system and other components. Stent used in the poor stability, easy to tilt