【摘要】 为研究纤维对水泥土变形过程中内部损伤的影响，进行了单掺与混掺玻璃纤维和秸秆纤维的水泥土试样无侧限抗压强度试验，得到了纤维的合理掺量，分析了合理纤维掺量下水泥土试样的能量演化规律。结果表明，纤维水泥土试样无侧限抗压加载破坏过程中能量演化过程可分为能量输入、弹性能累积、能量缓慢耗散、能量加速耗散、能量释放五个阶段。玻璃纤维和秸秆纤维均能提高水泥土吸收总能、弹性能和耗散能，玻璃纤维能有效延缓裂纹的产生，秸秆纤维能抑制裂纹的进一步扩展，混杂纤维能够提高水泥土的整体性能。更多还原

【Abstract】 In order to study the effect of fiber on the internal damage of cement soil during deformation, the unconfined compressive strength test of glass fiber, straw fiber, mixed glass fiber and straw fiber-cement soil samples under different dosages is carried out, the reasonable content of fiber is obtained, and the energy evolution law of cement-soil sample with reasonable fiber content is analyzed. The results show that the energy evolution process of fiber-cement soil sample with unconfined compressive loading can be divided into five stages: energy input, elastic energy accumulation, slow energy dissipation, energy acceleration dissipation, and energy release. Both glass fiber and straw fiber can improve the total energy, elasticity and dissipation energy absorbed by cement soil, glass fiber can effectively inhibit the generation of cracks, straw fiber can delay the further expansion of cracks, and mixed fiber can improve the overall properties of cement soil.更多还原