中国港湾建设
中國港灣建設
중국항만건설
CHINA HARBOUR ENGINEERING
2014年
9期
7-10
,共4页
沉降速率%反分析%真空预压%地基处理
沉降速率%反分析%真空預壓%地基處理
침강속솔%반분석%진공예압%지기처리
settlement velocity%back analysis%vacuum preloading%ground improvement
真空预压加固软土地基工程中，往往通过实测沉降数据推算最终沉降量和固结度以确定卸载时机，进而达到控制加固质量的目的。文章介绍了一种基于经典固结理论的反分析方法---沉降速率法，该方法既可以用于推算最终沉降量，也可以用于推算卸载时的沉降速率。工程实例表明，基于沉降速率法的反分析结果合理。
真空預壓加固軟土地基工程中，往往通過實測沉降數據推算最終沉降量和固結度以確定卸載時機，進而達到控製加固質量的目的。文章介紹瞭一種基于經典固結理論的反分析方法---沉降速率法，該方法既可以用于推算最終沉降量，也可以用于推算卸載時的沉降速率。工程實例錶明，基于沉降速率法的反分析結果閤理。
진공예압가고연토지기공정중，왕왕통과실측침강수거추산최종침강량화고결도이학정사재시궤，진이체도공제가고질량적목적。문장개소료일충기우경전고결이론적반분석방법---침강속솔법，해방법기가이용우추산최종침강량，야가이용우추산사재시적침강속솔。공정실례표명，기우침강속솔법적반분석결과합리。
In the project of improving soft foundation with vacuum preloading, in order to insure the consolidate effect, we widely applied the settlement data from field monitoring to get the ultimate settlement and consolidation degree of the ground, which will be used to determine the unloading time. This paper introduces a back analysis method based on the classic consoli-dation theory, namely, settlement velocity method. This method can be used to determine both ultimate settlement and settlement velocity at unloading time. Engineering practice shows that the back analysis method based on settlement velocity is reasonable.
