厚表土层中竖井沥青夹层复合井壁的试验研究

以相似理论为基础，用模拟试验研究了有沥青夹层的复合井壁，得到了沥青夹层的适宜厚度，传递竖直附加力的规律和数值；同时研究了外层井壁的可压缩层材料，获得可压缩层材料与传递到内层井壁的竖直附加力的关系。

Study of the Composite Shaft Lining with an Asphalt Filling in Thick Alluvium

Based on similarity theory and physical simulation,this paper studies the composite shaft lining with an asphalt filling. The simulation proves that the asphalt filling can transmit the additional vertical force,and obtains the transmitting fracture mechanism,the transmitted value and the suitable thickness of the asphalt filling. The paper also studies yieldable materialsused in outer lining and gives the relationship between the materials and the additional verticalforce transmitted to inner lining.