现代交通技术
現代交通技術
현대교통기술
XIANDAI JIAOTONG JISHU
2012年
2期
1-4
,共4页
凌定祥%夏国星%黄铭%林飞
凌定祥%夏國星%黃銘%林飛
릉정상%하국성%황명%림비
高速公路%路基%工后沉降%次固结沉降%主固结沉降
高速公路%路基%工後沉降%次固結沉降%主固結沉降
고속공로%로기%공후침강%차고결침강%주고결침강
expressway%subgrade%settlement after construction%secondary consolidation settlement%primary consolida-tion settlement
随着高速公路建设的迅速发展,公路软基工后长期沉降问题日益得到重视,预测工后长期沉降和判别工后长期沉降是否稳定对高速公路养护和拓宽至关重要。文章提出了路基工后长期沉降稳定的标准,即：路基某时间段的实测沉降小于次固结沉降计算值、且实测沉降速率小于次固结沉降速率的计算值,并应用实际工程中;并对盐靖高速公路和启杨高速公路路基沉降观测资料进行分析,认为次固结沉降与主固结沉降之间呈线性正相关关系。
隨著高速公路建設的迅速髮展,公路軟基工後長期沉降問題日益得到重視,預測工後長期沉降和判彆工後長期沉降是否穩定對高速公路養護和拓寬至關重要。文章提齣瞭路基工後長期沉降穩定的標準,即：路基某時間段的實測沉降小于次固結沉降計算值、且實測沉降速率小于次固結沉降速率的計算值,併應用實際工程中;併對鹽靖高速公路和啟楊高速公路路基沉降觀測資料進行分析,認為次固結沉降與主固結沉降之間呈線性正相關關繫。
수착고속공로건설적신속발전,공로연기공후장기침강문제일익득도중시,예측공후장기침강화판별공후장기침강시부은정대고속공로양호화탁관지관중요。문장제출료로기공후장기침강은정적표준,즉：로기모시간단적실측침강소우차고결침강계산치、차실측침강속솔소우차고결침강속솔적계산치,병응용실제공정중;병대염정고속공로화계양고속공로로기침강관측자료진행분석,인위차고결침강여주고결침강지간정선성정상관관계。
With the rapid development of highway construction,the long-term settlement of soft foundation was paid more attention to.It was essential for highway conservation and widen to predict the long-term settlement and judge whether the settlement was stability after construction or not.In this paper,the judgement criteria for the long-term settlement after construction of the subgrade whether stable was submitted and applied in practical engineering.The criteria was that the measured settlement value was less than the secondary consolidation calculated settlement value and the measured settlement rate was less than the secondary consolidation calculated settlement rate.The settlement observation data of Yanjing expressway and Qiyang expressway were analyzed and it was founded that there was linear correlation between secondary consolidation settlement and primary consolidation settlement.
