路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2011年
6期
37-40,44
,共5页
软基%工后沉降%影响因素%相对重要度
軟基%工後沉降%影響因素%相對重要度
연기%공후침강%영향인소%상대중요도
soft foundation%post-construction settlement%influencing factors%relative importance
结合公路工程建设期实际情况,对可引起软基路段工后沉降量过大的影响因素进行分析。基于不同约束下样本的评价值与最优值之间相关系数最大原则,借助聚类分析方法、粗糟集理论、专家系统知识,建立了一个影响因素相对重要度评定模型。实例分析结果表明,在诸多工后沉降影响因素中,软土层厚度对工程后期沉降量影响最大,预压时间次之,填土高度的影响相对较小。
結閤公路工程建設期實際情況,對可引起軟基路段工後沉降量過大的影響因素進行分析。基于不同約束下樣本的評價值與最優值之間相關繫數最大原則,藉助聚類分析方法、粗糟集理論、專傢繫統知識,建立瞭一箇影響因素相對重要度評定模型。實例分析結果錶明,在諸多工後沉降影響因素中,軟土層厚度對工程後期沉降量影響最大,預壓時間次之,填土高度的影響相對較小。
결합공로공정건설기실제정황,대가인기연기로단공후침강량과대적영향인소진행분석。기우불동약속하양본적평개치여최우치지간상관계수최대원칙,차조취류분석방법、조조집이론、전가계통지식,건립료일개영향인소상대중요도평정모형。실례분석결과표명,재제다공후침강영향인소중,연토층후도대공정후기침강량영향최대,예압시간차지,전토고도적영향상대교소。
Combined with the practical situation of highway engineering construction period, the influencing factors causing larger post-construction settlement in soft foundation section are analyzed. Based on the principle of maximum correlation coefficient between evaluation value and optimal value of sample under different constraints, an evaluation model for the relative importance of influencing factors has been established using cluster analysis, rough set theory and expert system knowledge. The results showed that among many influencing factors of post-construction settlement, the thickness of soft soil layer has the most significant influence on post-construction settlement; then followed by pre-pressing time; the depth of fill has the relatively small influence.