山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2015年
18期
144-144,145
,共2页
地基处理%预应力管桩%有限元分析%土工格栅
地基處理%預應力管樁%有限元分析%土工格柵
지기처리%예응력관장%유한원분석%토공격책
foundation treatment%pre-stressed pipe pile%finite element analysis%geotechnical grille
以山东省某高等级公路为例，研究了预应力管桩处理桥头地基施工方法，确定了预应力管桩处理桥头路基段施工工序及原材料性能要求，通过运用Plaxis8.5有限元模拟，进一步验证了处理方案的可行性，试验段长期应用显示：桥头回填段运营期过渡段最大工后沉降为2.0 cm，位于变桩长区域过渡段差异沉降为0.05%，台背回填段未出现桥头跳车现象。
以山東省某高等級公路為例，研究瞭預應力管樁處理橋頭地基施工方法，確定瞭預應力管樁處理橋頭路基段施工工序及原材料性能要求，通過運用Plaxis8.5有限元模擬，進一步驗證瞭處理方案的可行性，試驗段長期應用顯示：橋頭迴填段運營期過渡段最大工後沉降為2.0 cm，位于變樁長區域過渡段差異沉降為0.05%，檯揹迴填段未齣現橋頭跳車現象。
이산동성모고등급공로위례，연구료예응력관장처리교두지기시공방법，학정료예응력관장처리교두로기단시공공서급원재료성능요구，통과운용Plaxis8.5유한원모의，진일보험증료처리방안적가행성，시험단장기응용현시：교두회전단운영기과도단최대공후침강위2.0 cm，위우변장장구역과도단차이침강위0.05%，태배회전단미출현교두도차현상。
Taking the Shandong high grade highway as an example,this paper researched the construction method of pre-stressed pipe pile treat-ment of bridgehead foundation,determined the construction process and raw material properties requirements of pre-stressed pipe pile treatment of bridgehead roadbed section,through the use of Plaxis8. 5 finite element simulation,further validated the feasibility of treatment scheme,the test section long term application showed:the bridgehead backfill section and operation transition section max post-construction was 2. 0 cm,the differ-ential settlement located in variable pile long transition regionwas 0. 05%,the abutment backfill section did not appear bridgehead vehicle jump.
