纤维加筋土的动力特性试验研究

研究用聚丙烯纤维加筋粘性土抵抗静动荷载作用下土体发生张拉裂缝的功能。试验研究结果表明，纤维加筋土的静动力抗张拉、抗断裂性质，诸如极限拉应力、极限技应变、动强度、动模量、临界断裂韧度等，与素土相比都有很大的提高。由此说明纤维加筋粘性土是一种比较理想的土坝防渗抗震填料。

Experimental study on dynamic properties of cohesive soil reinforced with fibres

This paper studies the effect of cohesive soil reinforced with polypropylen fibres on the tensile resistance against crack under static and cyclic looding. The experimental results show that in comparison with the noareinfereed sol the mechanical propertiesof the reinforced soil, such as the ultimate tensile stress, the ultimate tensile strain, the dynamic strength,the crihcal fracfor toughness and the dynamic modulus all increase in a considerable degree. Thus it can be seen that the fabric reinforced soil is a goodfill for earth dam in respect of earthquake-resistance.