目录前言···················································3（一)矿井及煤层概况·····································3（二)矿方意见···········································4（三）公司推举方案 ·······································4（四)选用 ZY2400/08/16 型液压支架的理由及可行性 ··········5（五）工作面顶板压力的估算及支架的支护强度················6（六）劳动组织············································7（七）主要经济技术指标及效益估算··························8 （八）、机组、刮板输送机、转载机、皮带机选型原则、主要技术参数合理性：················································9(九）ZY2400/08/16 型掩护式压支架材质及工艺说明··········10（十)落煤方法··········································12 （十一）安全措施·········································13（十二）优惠条件········································14 （十三）结论·············································14(十四）支架技术参数····································15一、矿井及煤层概况山东鑫国煤电有限责任公司为一老矿井，地质储量 200 万吨，可采储量150 万吨,为立、斜井开拓，设计生产能力 40 万吨，有可采煤层 6 层，本次设计薄煤层 32＃煤层,并兼顾 9#煤层,设计工作面走向长度 400 米,倾斜长度 80 米。32＃煤层为稳定煤层，煤层厚 0.8—1.3 米,平均煤厚 1.1 米.煤层倾角 8—12°，煤质硬度 f=1。5-2,,煤的容重 1.35 t/m3.煤层埋深 130—140m.32#煤层伪顶为粉砂岩厚 0。15m，直接顶粉砂岩厚 3。0m;煤层伪底泥质砂岩厚 0。3m,其下为粉砂岩厚 2。0 米.伪顶硬度系数 f=2 ，伪底硬度系数 f=3。9...
