大众科技
大衆科技
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DAZHONG KEJI
2014年
8期
51-54
,共4页
膨胀岩(土)%柔性支护%FLAC
膨脹巖(土)%柔性支護%FLAC
팽창암(토)%유성지호%FLAC
Expansive rock (soil)%flexible support%FLAC
土工格栅加筋柔性支护技术已成功治理南方多处膨胀土坍滑边坡。为验证柔性支护技术在北方深路堑边坡的处治效果，采用FLAC对北京膨胀岩（土）深路堑边坡柔性支护前后的位移、应力应变以及边坡稳定系数进行对比分析。研究表明：经干湿循环后，相比素膨胀土边坡，土工格栅加筋柔性支护的膨胀土堑坡发生的位移要小，坡脚处的剪应力集中减小，坡体没出现明显的剪切带，边坡整体稳定。
土工格柵加觔柔性支護技術已成功治理南方多處膨脹土坍滑邊坡。為驗證柔性支護技術在北方深路塹邊坡的處治效果，採用FLAC對北京膨脹巖（土）深路塹邊坡柔性支護前後的位移、應力應變以及邊坡穩定繫數進行對比分析。研究錶明：經榦濕循環後，相比素膨脹土邊坡，土工格柵加觔柔性支護的膨脹土塹坡髮生的位移要小，坡腳處的剪應力集中減小，坡體沒齣現明顯的剪切帶，邊坡整體穩定。
토공격책가근유성지호기술이성공치리남방다처팽창토담활변파。위험증유성지호기술재북방심로참변파적처치효과，채용FLAC대북경팽창암（토）심로참변파유성지호전후적위이、응력응변이급변파은정계수진행대비분석。연구표명：경간습순배후，상비소팽창토변파，토공격책가근유성지호적팽창토참파발생적위이요소，파각처적전응력집중감소，파체몰출현명현적전절대，변파정체은정。
The technology of geogrid reinforced flexible supporting has been successfully managed several the southern expansive soil slumping slope. To verify the effect of the flexible support technology in treating the northern deep cutting slope, the author compared the displacement, stress and strain , and slope stability coefficient of Beijing expansive rock (soil) deep cutting slope between flexible supported and undo based on FLAC. The studies showed that the displacement of expansive soil cutting slope by geogrid reinforced flexible supporting smaller than the unreinforced expansive soil slope, so did the shear stress at the toe, otherwise the slope didn’t appear apparent shear zone and was overall stable after wetting-drying cycles.
