目录1编制说明.................................................................................................11.1编制依据..............................................................................................11.2编制目的和目标..................................................................................11.3适用范围..............................................................................................22工程概况.................................................................................................22.1工程简介..............................................................................................22.2地形地貌..............................................................................................22.3底层岩性..............................................................................................22.4地质构造及地动参数..........................................................................22.5水文地质特征......................................................................................32.6工程地质条件评价..............................................................................33瓦斯的定义.............................................................................................33.1瓦斯的特性..........................................................................................43.1.1爆炸性...............................................................................................43.1.2渗透性...............................................................................................43.1.3不稳定性...........................................................................................43.1.4窒息性...............................................................................................53.2瓦斯爆炸的必要条件..........................................................................53.2.1瓦斯浓度...........................................................................................53.2.2引火源...............................................................................................63.2.3足够的氧气.......................................................................................63.3瓦斯突出..............................................................................................63.3.1瓦斯涌出形式...................................................................................73.3.2瓦斯突出的一般规律.......................................................................73.3.3突出与地质构造的关系...................................................................83.3.4突出与瓦斯压力的关系...................................................................83.3.5突出与地压的关系...........................................................................83.3.6突出与地层的关系...........................................................................93.3.7突出与水文地质的关系...................................................................94高瓦斯隧道灾害的预测及特点.............................................................94.1灾害的预测..........................................................................................94.2灾害可能发生的原因和位置..............................................................94.2.1可能发生的原因..................................................................
