水运工程
水運工程
수운공정
PORT & WATERWAY ENGINEERING
2009年
7期
208-212
,共5页
反射裂缝%土工格栅%有限元分析%拉应力%弯沉
反射裂縫%土工格柵%有限元分析%拉應力%彎沉
반사렬봉%토공격책%유한원분석%랍응력%만침
reflection crack%geo-grid%finite element analysis%tension stress%deflection
通过选用合理的力学模型及力学参数,采用有限元法建立三维力学模型进行计算,分析土工格栅对旧路反射裂缝的改善原理及效果.分析结果表明,加铺格栅降低了裂缝处基层底面的应力集中,减小了基层底面的层底拉应力、剪应力值,但对弯沉值影响很小.
通過選用閤理的力學模型及力學參數,採用有限元法建立三維力學模型進行計算,分析土工格柵對舊路反射裂縫的改善原理及效果.分析結果錶明,加鋪格柵降低瞭裂縫處基層底麵的應力集中,減小瞭基層底麵的層底拉應力、剪應力值,但對彎沉值影響很小.
통과선용합리적역학모형급역학삼수,채용유한원법건립삼유역학모형진행계산,분석토공격책대구로반사렬봉적개선원리급효과.분석결과표명,가포격책강저료렬봉처기층저면적응력집중,감소료기층저면적층저랍응력、전응력치,단대만침치영향흔소.
By selecting logical mechanical model and parameter, three-dimensional finite element models are set up and calculated by ANSYS to analyze the improvement mechanics and effect on reflection crack occurraed in the old road. The results show that geo-grid will reduce the stress convergence on the crack undersurface base course and minish the tension stress and shear stress, but it has little influence on deflection.
