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一、基本情况 锡山2~#竖井+84m马头门、调车场主巷道及其交叉口巷道,布置于锡山脚第四纪残坡积表土层中,附近为风化、裂隙发育的基岩层,巷道则穿过基岩与表土的接触带土层里面。土层地质条件极为复杂恶劣,土质为松软的含砂砾粘土,砂砾颗粒大小不一,一部分是土层形成时留下的大滚石;土层密度、稳定程度不均匀。含水量受大气降水直接作用,有局部受地下溶洞积水影响;故旱季期间含水量较少,大部分土质较干燥、松散,极易片帮、冒顶、塌方;雨季期间含水量较
First, the basic situation Xishan 2 ~ # Shaft + 84m Matoumen, yard main roadway and its intersection roadway, arranged in the foot of the foot of the Quaternary Period of Xishan foot surface layer, near the bedrock with weathering and fissures, roadway Then through the bedrock and topsoil in contact with the soil inside. The geological conditions of the soil are extremely complicated and harsh. The soil is soft sandy grit clay. The grit particles are of different sizes. One part is the big rolling stone left by the soil formation. The density and stability of the soil layer are not uniform. Moisture content is directly affected by atmospheric precipitation and is partially affected by underground water cofferdam. Therefore, the water content during the dry season is less and most of the soil is dry and loose.