Research On Influence Of Development And Evolution Of Expansive Soil Fissures On Slope Stability

Landslide geological disasters, whose degree of damage is high, occurfrequently in the Pishihang Irrigation District. The development and evolution offissures of expansive soil on the influence of slope stability study in irrigation area isless, and there is few theory research achievements on the report. Limitations oftheory study will seriously restrict to landslide control in engineering practice inirrigation area, and it is difficult to develop its biggest benefit. Based on thescientific research project "instability mechanism and reinforcement renovation ofthe Pishihang Irrigation District expansion fissured clay slope", the expansive soilslopes in the Pishihang Irrigation District were comprehensively studied in thispaper. On the basis of a large number of laboratory tests, the long-term fieldobservation and the analyzed and researched test data, firstly the physical andmechanical properties and engineering properties of expansive soil in irrigationarea were studied. Next, this paper analyzed and researched the development anddistribution rules of expansive soil fissures, and studied the development andevolution of expansive soil fissures on slope stability. Finally using FLAC softwaresimulated considering the fissures of the expansion soil slope stability analysis. Onthe above basis, this article gives the types of the landslides in irrigation area, putsforward suggestions for landslide treatment measures, and provides references tochoose reasonable evaluation method and prevention measures for the engineeringand technical personnel in practical projects.