生态型稳定剂协同植物根系固土特性及机理研究

为分析生态型稳定剂对植物根系固土特性的影响，对根系-生态型稳定剂-黏性土复合体进行直接剪切试验，研究了不同根系数量和不同生态型稳定剂含量条件下复合体的抗剪强度参数、剪切模量和总变形能量，结合试样产生的剪切位移，探究了边坡植被固土剪切特性及其加固机理。结果表明：植物根系的掺入增强了土体的抗剪强度；当生态型稳定剂质量分数大于1%时，其对复合体抵抗变形的影响较为明显；生态型稳定剂在土体中形成网状结构，促进土体内黏性土团聚体形成，增强了土体的黏聚力，与植物根系相互作用提高了土体抗剪强度特性。

Study on characteristics and mechanisms of soil reinforcement by plant roots and ecotypic stabilizer

To analyze the effects of ecotypic stabilizer on soil reinforcement of plant roots, direct shear tests were conducted on the root-ecotypic stabilizer-clay complex, and the shear strength parameters, shear modulus and total deformation energy of the complex under different root numbers and different ecotypic stabilizer contents were studied. Combined with the shear displacement generated by the samples, the shear characteristics and reinforcement mechanism of vegetation soil reinforcement were explored. The results show that the shear strength is increased by plant roots. When the content of the ecotypic stabilizer is greater than 1%, its influence on the complex deformation resistance is more obvious. The ecotype stabilizer forms a network structure in soil, which can promote the formation of cohesive soil aggregation, enhance the cohesion, and interact with the plant roots to improve the shear strength of the soil.