Stability Analysis Of Miaojia River Slope And Study Of Vegetation Applied To Slope Protection

With the development of science and the advancement of human beings, the demand for the ecological environment and landscape is increasing. Miaojia River slope that is the project require regulated is soil slope, the slope protection of masonry, this form of slope protection aggravated the deterioration of ecological activity. For the new slope protection, the traditional slope stabilization appraisal is indispensable to add new ways. The form of traditional slope protection is also indispensable to adding new content. For example of the Miaojia River slope, the lower works were finished and some achievements were gained:(1) The mechanism of action for the seeded slope protection and the influence to the stabilization of soil slope. The interdependence between the distribution density and depth of root and the assurance coefficient of slope were analyzed respectively. With the increase of root density and depth, the cohesive strength of sloping surface is increasing, the soil slope is more and more stable. The inter-coupling of mechanical model between the vertical root and soil was analyzed particularly. The generalized model of adding-bar effect and stabilizing effect analysis were advanced. Roots system increasing the shear strength of soil realized by which is the friction force of seat contact surface inverts soil shear stress to the tension stress of roots. Theincrement of slope shearing strength Δξ after the protection of seed slope can be gotby the generalized model of mathematical statistics.(2) The analysis and research of Miaojia River slope stability. ①The stability analysis of Miaojia River slope should calculate in rainstorm and nature. The results displayed the possibility of slope superficial sliding under the two conditions is very small. ②The stability analysis used FEM software-ADINA which based on strength reduction to built space model. By analyzing the stress state and transformation state of the slope, the possibility of slope deep sliding is very small. The maximum displacement of slope is in the bottom of slope, and the maximum shear stress is on the top of slope. The section A of slope angle is 30° and section B of slope angle is 40°. The results displayed that the value of Displacement-Magnitude and Z-Displacement of section B of slope are greater than the section A of the slope, which agreed the reality.(3) The lay-aside of ecological concrete block may lead to buckling destroyed under the soil pressure. By calculating soil pressure and the certification of slipping and dumping destruction, the results displayed that ecological concrete could not create horizontal displacement or dumping destruction. At last, the disposal program of ecological concrete was advanced.