4.新旧对比-煤矿安全规程

4.新旧对比-煤矿安全规程《煤矿安全规程》修订前后对比目录第一编总则·····················································1第二编地质保障·············································8第三编井工煤矿·············································11第一章第一章矿井建设矿井建设··························································11第一节一般规定·························································································11第二节井巷掘进与支护···············································································13第三节井塔、井架及井筒装备····································································28第四节建井期间生产及辅助系统································································31第二章第二章开采开采······························································40第一节一般规定·······················································································40第二节回采和顶板控制·············································································46第三节采掘机械·························································································63第四节建(构)筑物下、水体下、铁路下····