盾构隧道接缝对结构内力的影响研究  

The Study on the Influence of Shield Tunnel Joints on the Structure Internal Force

作　　者：陶斌[1] 

机构地区：[1]山西省交通科学研究院,山西太原030006

出　　处：《山西交通科技》2015年第3期52-55,共4页Shanxi Science & Technology of Transportation

摘　　要：盾构隧道结构内力分析常采用修正惯用计算法和梁-弹簧模型,但在没有进行接缝刚度原型试验的情况下,两种方法均无法考虑接缝构造对结构内力的影响。同时又由于原型试验只针对工程实际的接缝构造,因此目前很少探究不同的接缝构造对刚度的影响。针对盾构隧道常用的两种接缝构造,根据接缝处混凝土接触面形心与管片厚度中心线的相对偏离关系,采用调整计算轴线的方法,可以较好地模拟接缝构造对结构内力的影响。同时利用接缝构造对结构内力的影响规律,提出了通过调整接缝构造来优化结构内力的方法。In view of the two kinds of joints structure, which commonly used for shield tunnel, according to the relative deviation of joint concrete contact area centroid and the center line of the segment thickness, adopting the adjusting calculation axis method, this paper simulated the influence of joint structure on the structural internal force well. At the same time, using the influence law of joint structure on the structural internal force, it also proposed the method to optimize structural internal by adjusting joint structure.

关 键 词：管片 接缝构造 内力 优化 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]