人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
11期
60-63
,共4页
突变理论%分布形式%抗滑桩%滑坡
突變理論%分佈形式%抗滑樁%滑坡
돌변이론%분포형식%항활장%활파
catastrophic theory%distribution form%anti-slide pile%landslide
基于一个公路滑坡抗滑桩模型，将滑带土视为应变软化和硬化两种介质构成，分别采用Weibull分布的剪切本构关系和分段直线方程进行描述。利用求系统极值的尖点突变理论将描述应变硬化和应变软化两种介质的本构关系方程引入，在此基础上推导出抗滑桩所受滑坡推力分布的计算公式，并重点分析了上述两种剪切本构关系方程中主要参数对抗滑桩所受滑坡推力分布形式的影响。最后将推导公式应用到一个工程实例中，计算结果与现场实测结果能够较好吻合。
基于一箇公路滑坡抗滑樁模型，將滑帶土視為應變軟化和硬化兩種介質構成，分彆採用Weibull分佈的剪切本構關繫和分段直線方程進行描述。利用求繫統極值的尖點突變理論將描述應變硬化和應變軟化兩種介質的本構關繫方程引入，在此基礎上推導齣抗滑樁所受滑坡推力分佈的計算公式，併重點分析瞭上述兩種剪切本構關繫方程中主要參數對抗滑樁所受滑坡推力分佈形式的影響。最後將推導公式應用到一箇工程實例中，計算結果與現場實測結果能夠較好吻閤。
기우일개공로활파항활장모형，장활대토시위응변연화화경화량충개질구성，분별채용Weibull분포적전절본구관계화분단직선방정진행묘술。이용구계통겁치적첨점돌변이론장묘술응변경화화응변연화량충개질적본구관계방정인입，재차기출상추도출항활장소수활파추력분포적계산공식，병중점분석료상술량충전절본구관계방정중주요삼수대항활장소수활파추력분포형식적영향。최후장추도공식응용도일개공정실례중，계산결과여현장실측결과능구교호문합。
Based on a model of anti-slide pile in a highway project, the slip soil is regarded as two type materials character-ized as strain hardening and strain softening, and is described by shear constitutive relation and segmental linear relation respec-tively with Weibull distribution. The two constitutive relations of strain hardening and strain softening are introduced by using cusp catastrophic model, and based on which, the formula for landslide thrust distribution calculation is induced. The influences of the constitutive relation parameters on distribution laws of landslide thrust are discussed. Finally, the presented formulas are applied in an engineering example, it is found that the measured results in the engineering example can be well described by the presented formulas.
