Research On Comprehensive Protection Technology Of Highway Slope In Expansion Area

Highway Slope collapse, collapse shoulder and shallow landslide are difficult to cure works as a"stubborn problems"in Expansion Area. This thesis study the failure modes of highway slope in expansion land area and protective manner starting with the status of investigation, analyzed and summed up the reasons and the forms of Expansive soil slope destruction , expuond a"comprehensive anti-drainage works protective + plant protection methods"comprehensive protection of expansive soil slope protection. Analysis the role of revetment, function and mechanism selected on the slope protection of plant species and plant species composition of the model, and then put forward to integrate herbaceous and shrubs, putting vegetation of the slope rapid shrub. Researching on the design of comprehensive drainage protection, the choice of protective methods and so on .The thesis expuond that by the expansive soil slope as a"closed and exclusive, closed"comprehensive anti-handling measures, slope settings"Drainage + skeleton support Under drainage"drainage, slope surface drains installed, set foot"retaining + Water"comprehensive prevention and drainage reinforcement measures. The conclusion of integrated protection of Anti-drainage works and plant protection research apply to Anning to Chuxiong in Yunnan, Yanshan to Pingyuanjie Highway expansive soil Highway Slope support projects, using moisture sensors to support projects of the slope water to carry out observation, the soil erosion, slope damage plant growth conditions for a comprehensive test, comparative analysis showed that the comprehensive protection measures and make full use of the advantages of plant protection and plant transpiration and coverage, effective inhibition of soil slope Storage drastic changes, and prevention measures and drainage to enter into plant roots, soil stability, reinforced slope, make environment greening and beautifying. For expansive soils slope protection and environmental protection provided technical support and guarantees.