南华大学学报（自然科学版）
南華大學學報（自然科學版）
남화대학학보（자연과학판）
JOURNAL OF NANHUA UNIVERSITY(SCIENCE AND TECHNOLOGY)
2014年
1期
108-112
,共5页
拓宽%管桩%加筋土挡土墙%数值分析
拓寬%管樁%加觔土擋土牆%數值分析
탁관%관장%가근토당토장%수치분석
widening%pile%reinforced earth retaining wall%numerical analysis
结合绍诸高速上三段拓宽工程的建设，采用FLAC3D对桩承式加筋土挡墙施工对原路基的影响、新老路基的沉降发展规律进行分析。研究表明，原路基边坡开挖后的卸荷作用会使原路基变形出现回弹；管桩施工对原路基的影响较小；施工后，路基的新增沉降呈“~”形，在路基中心线处新增沉降最小，在拓宽路基部分新增沉降最大。
結閤紹諸高速上三段拓寬工程的建設，採用FLAC3D對樁承式加觔土擋牆施工對原路基的影響、新老路基的沉降髮展規律進行分析。研究錶明，原路基邊坡開挖後的卸荷作用會使原路基變形齣現迴彈；管樁施工對原路基的影響較小；施工後，路基的新增沉降呈“~”形，在路基中心線處新增沉降最小，在拓寬路基部分新增沉降最大。
결합소제고속상삼단탁관공정적건설，채용FLAC3D대장승식가근토당장시공대원로기적영향、신로로기적침강발전규률진행분석。연구표명，원로기변파개알후적사하작용회사원로기변형출현회탄；관장시공대원로기적영향교소；시공후，로기적신증침강정“~”형，재로기중심선처신증침강최소，재탁관로기부분신증침강최대。
Combined with the Shangsai widening project construction of Shaozhu express way,the effects of pile-supported reinforced retaining wall construction on original founda-tion and settlement development law of old and new embankment had been studied by FLAC3D. The results showed that,the unloading effect of road slope after excavation would make the old road deformation rebound;pile construction had little effect on the old road;after construction,the new settlement in the “ ~” shape,the new settlement in the center of embankment was the minimum,while the maximum happened in widening embankment.
