广东公路交通
廣東公路交通
엄동공로교통
GUANGDONG HIGHWAY COMMUNICATIONS
2012年
3期
94-99
,共6页
复合地基%承载力特征值%复合压缩模量%褥垫层%相对变形值%沉降比
複閤地基%承載力特徵值%複閤壓縮模量%褥墊層%相對變形值%沉降比
복합지기%승재력특정치%복합압축모량%욕점층%상대변형치%침강비
composite foundation%characteristic value of bearing capacity%composite compression modulus%cushion layer%cushion layer for load test%relative deformation value%settlement ratio
与复合地基有关的各种技术标准中,有一些规定存在着争议。建议复合地基承载力特征值深宽修正后不小于相对应天然地基土承载力特征值的修正值;建议在使用承载力比法确定复合压缩模量后再按分层总和法计算复合地基沉降量时,对目前使用的天然地基的沉降计算经验系数进行修正;建议荷载试验时,试验结果应考虑荷载试验垫层的影响;建议在载荷试验确定各种桩体复合地基承载力特征值时,沉降比指标统一且与相应的天然地基的指标一致。
與複閤地基有關的各種技術標準中,有一些規定存在著爭議。建議複閤地基承載力特徵值深寬脩正後不小于相對應天然地基土承載力特徵值的脩正值;建議在使用承載力比法確定複閤壓縮模量後再按分層總和法計算複閤地基沉降量時,對目前使用的天然地基的沉降計算經驗繫數進行脩正;建議荷載試驗時,試驗結果應攷慮荷載試驗墊層的影響;建議在載荷試驗確定各種樁體複閤地基承載力特徵值時,沉降比指標統一且與相應的天然地基的指標一緻。
여복합지기유관적각충기술표준중,유일사규정존재착쟁의。건의복합지기승재력특정치심관수정후불소우상대응천연지기토승재력특정치적수정치;건의재사용승재력비법학정복합압축모량후재안분층총화법계산복합지기침강량시,대목전사용적천연지기적침강계산경험계수진행수정;건의하재시험시,시험결과응고필하재시험점층적영향;건의재재하시험학정각충장체복합지기승재력특정치시,침강비지표통일차여상응적천연지기적지표일치。
There are some serious disputes on several rules in the technical standards for composite foundation. We sug- gest that the deep and wide modified value of composite foundation is not less than that of natural foundation; suggest that the settle experience coefficient for natural foundation should be modified when they are used for composite com- pression modulus ; suggest that the influence of cushion layer should be considered in load test ; suggest that the settle- ment ratio indicator for composite foundation should be united and in accordance with their natural foundation when the characteristic value of composite foundation bearing capacity is determined through the load test.
