Numerical Simulation Of Underground Exploitation And Study On Strengthen Method Of Dike

Bank is an important part in Chinese system of controlling flood. It has accumulated much experience in the choice of bank's material, division of bank's body, stabilization of dam, seepage, settlement, analysis of stress and strain, treatment of foundation, criterion of reclamation and machine of construction and so on. But after many years running or for satisfying the need of economic development, many bank and its foundation has much disease, its normally use and benefit are naturally or man-madly influenced. According to status of HUXI Bank in XuZhouJIANGSU province, using numerical value analysis theory and technique of dam construction, this paper put forward efficiency strengthen method in the base of study and analysis .The main work this paper do are these like below:(1) this paper reviewed and summarized the development and actuality of bank in china, induced the variety of bank's disease and the measure of judge etc.(2) Introduced and studied Fast Lagrangian Analysis of Continua .FLAC3D is a three-dimensional explicit finite-difference program..Uing this program, obtained the three-dimensional settlements of HUXI Bank and analyzed the tention area and the cut-off area.The result shows that there are a lot of andscape orientation cracks and portrait cracks in the bank.These cracks bring some disadvantage influence to slope stabilization and seepage of bank.(3) The upper result of settlement field,stress field and crack deepness offers a theoretics gist for Reinforcing bank.The paper concludes several methods of Reinforcement.Through choosing project, made certain adopting geomebrance to Reinforce the bank.(4) On the basis of Analysed result and the status quo of HUXI bank,computing the slope safety and seepage of bank by FEM.The result shows that the tarus quo of HUXI bank could not satisfy theslope safety on designed flood lever.After the Reinforcement of seepage,the method can not only reduced leakage ,debace the soggy but also ameliorate stress fields.lt also can reduce horizontal displacement and certical displacemeng which have disadvantages to bank.(5) For slope safety problem,the paper analyzed the sensitivity of parameter.Theresult shows that E, v, , k0 have little affecting on slope safety, friction angle and cohness c are main factors. Providing a theoretics gist for Reinforcing bank.