盐城工学院学报（自然科学版）
鹽城工學院學報（自然科學版）
염성공학원학보（자연과학판）
Journal of Yancheng Institute of Technology(Natural Science Edition)
2015年
3期
7-12
,共6页
软弱夹层%极限荷载%破坏模式%上界法%层面摩擦条件
軟弱夾層%極限荷載%破壞模式%上界法%層麵摩抆條件
연약협층%겁한하재%파배모식%상계법%층면마찰조건
Soft interlayer%Ultimate load%Failure mode%Upper bound method%Friction condition on stratification plane
软弱夹层构造在沿海地区工程建设中经常遇到,因其力学性能较低,易给工程的后续稳定性带来危害.目前针对软弱夹层的承载稳定性分析方法还较少,部分被相关行业所采用的计算理论也存在一些有待完善的地方.针对软弱夹层的破坏模式进行研究,采用极限分析上限法对软弱夹层的极限压力进行求解,提出的计算模式考虑了软弱夹层的宽厚比、层面摩擦条件、侧向偏移及附加力等因素的影响,结果可为合理分析软弱夹层的承载稳定性提供理论依据.
軟弱夾層構造在沿海地區工程建設中經常遇到,因其力學性能較低,易給工程的後續穩定性帶來危害.目前針對軟弱夾層的承載穩定性分析方法還較少,部分被相關行業所採用的計算理論也存在一些有待完善的地方.針對軟弱夾層的破壞模式進行研究,採用極限分析上限法對軟弱夾層的極限壓力進行求解,提齣的計算模式攷慮瞭軟弱夾層的寬厚比、層麵摩抆條件、側嚮偏移及附加力等因素的影響,結果可為閤理分析軟弱夾層的承載穩定性提供理論依據.
연약협층구조재연해지구공정건설중경상우도,인기역학성능교저,역급공정적후속은정성대래위해.목전침대연약협층적승재은정성분석방법환교소,부분피상관행업소채용적계산이론야존재일사유대완선적지방.침대연약협층적파배모식진행연구,채용겁한분석상한법대연약협층적겁한압력진행구해,제출적계산모식고필료연약협층적관후비、층면마찰조건、측향편이급부가력등인소적영향,결과가위합리분석연약협층적승재은정성제공이론의거.
Soft interlayer structure is widely encountered during construction of engineering in coastal areas.For its weak proper-ties,it usually brings hazards to the subsequent stability of projects.At present,the analysis method of bearing capacity of soft interlayer are still few,and there are also some deficiency of calculation theory need to be improved which have been adopted by the relevant industry.The failure mode of soft interlayer is researched in this text,the ultimate pressure of soft interlayer is solved by the upper bound method in the limit analysis as well.The influence of the thickness ratio,the friction condition,the lateral offset and the additional force to the soft interlayer are considered in the calculation method.The outcome can provide a theoreti-cal basis for the reasonable analysis of the bearing stability of the soft interlayer.
