众所众知,膨胀土地基胀缩的原因,从本质上来看,系土中含有遇水膨胀、失水收缩的亲水性矿物,如蒙脱石、伊利石、水云母等矿物;究其外因,最根本的就是地基土中含水量循环不断的变化,尤其含水量较大幅度的不均匀变化,乃是导致建筑物开裂损坏的祸首。因此,设法使地基土的含水量相 As everyone knows, the reason for the expansion and contraction of expansive soil bases is that, in essence, it contains hydrophilic minerals that swell with water and shrink in water loss, such as montmorillonite, illite, hydromica, and other minerals; External factors, the most fundamental is the continuous change of water content in ground soil, especially the large-scale non-uniform changes in water content, but it is the culprit leading to cracking of buildings. Therefore, trying to make the soil moisture content