论文部分内容阅读
膨胀土由超固结、多裂隙、强亲水粘粒含量较多的矿物组成,具有吸水膨胀、失水收缩硬裂、胀缩可逆性较大的特性。我矿招待所(二层砖混结构,24cm厚砖墙)使用后,出现裂缝共84条,其中墙体22条,地面5条,散水57条。 1.裂缝原因 (1)我矿位于太行山东麓山前丘陵地带缓丘顶部、表层局部填土约1m厚,其下主要是膨胀土(厚5m),为主要持力层,
Expansive soil is composed of minerals with overconsolidation, multiple fissures and strong hydrophilic clays. It has the characteristics of water swelling, water-loss shrinkage and hard cracking, and reversibility of expansion and contraction. After the mine guest house (two-story brick-concrete structure, 24cm thick brick wall) was used, there were 84 cracks, including 22 walls, 5 grounds, and 57 loose water. 1. Causes of Cracking (1) Our mine is located on the top of a gentle hill in the hilly area in front of the Laoshan Mountain in the Taihang Mountains. The surface of the mine is partially filled with about 1m thick, and underneath it is mainly expansive soil (thickness 5m). It is the main bearing layer.