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众所周知,强夯能提高地基土的密实程度从而提高土的强度,降低其压缩性,有时还可消除湿陷性,基至还可作为改善土的弱膨胀性的一种手段。我们先后于湖北、河南等地进行的强夯处理设计和实施前后一系列检测表明。强夯对地基的物理力学特性甚至地基结构均产生明显有规律性的影响。江山,夯能10×10T·M,先普夯后投毛石主夯(主受力点)兼搭夯(楼梯处),要求承载力[R]150KPa,鹤壁,分三遍,夯能分别为16×13,16×10,16×7T·M,填土平均厚6m,要求承载力[R]180～200KPa;这两处均属弱膨胀土。本文主要讨论非饱和的细粒土的夯实效果,强夯的直观效果是使一定深度内的土层夯实,土的孔隙比减小(或干容重增大)即密实度增加,已有的实践均证明了这点。例如江
It is well-known that toughness can increase the compactness of foundation soil to increase soil strength, reduce its compressibility, and sometimes eliminate collapsibility, which can also be used as a means to improve the weak expansion of soil. We have successively designed and implemented a series of tests before and after implementation of powerful treatment in Hubei and Henan. Strong ramming has obvious and regular effects on the physical and mechanical properties of the foundation and even the foundation structure. Jiang Shan, Shanneng 10×10T·M, after the first Pu’er, the chief of the rubble (the main force point) and the first step (stairs), required bearing capacity [R] 150KPa, Hebi, divided into three times and It is 16×13, 16×10, 16×7T·M, and the average filling thickness is 6m. The required bearing capacity [R] is 180～200KPa; both of these are weak expansive soils. This paper mainly discusses the compaction effect of unsaturated fine-grained soils. The intuitive effect of intensive boring is to compact the soil layer within a certain depth, and the void ratio of the soil is reduced (or the dry bulk density increases), that is, the density is increased. Both have proved this point. For example, Jiang