锚索抗滑桩设计中的几个问题探讨
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摘要
对锚索抗滑桩设计中的合理间距、桩的嵌固深度、抗滑桩内力和变形计算等问题进行了探讨。指出对于锚索抗滑桩系统来说,最小间距应根据桩和锚索的间距综合考虑;对于锚索抗滑桩的嵌固深度,只要使其满足桩周地基承载力的要求即可,仅靠增加桩的嵌固深度,对改善桩身内力和变位的意义并不大。分析了当前计算锚索抗滑桩内力和变形的几种主要方法,讨论了影响锚索抗滑桩内力和变形分布形式的主要因素以及对锚索抗滑桩进行全局优化设计的思路。
Reasonable space between piles,the built-in depth,the internal force and the deformation of piles in designing the anchor anti-slide piles is studied.It is point out that the minimum space must be comprehensive considered on the basis of the space between piles and anchors.For its built-in depth,it is not significance to improve the internal force and deformation only through adding the built-in depth.So,it can be satisfied with requirements for that if ground-bearing capacity around piles can be satisfied in that way.Last,some current principal methods about calculating internal force and deformation of anchor anti-slide piles is analyzed,and some main factors effecting shape distributed of internal force and deformation,and overall situation optimization design of anchor anti-slide piles is discussed.
Reasonable space between piles,the built-in depth,the internal force and the deformation of piles in designing the anchor anti-slide piles is studied.It is point out that the minimum space must be comprehensive considered on the basis of the space between piles and anchors.For its built-in depth,it is not significance to improve the internal force and deformation only through adding the built-in depth.So,it can be satisfied with requirements for that if ground-bearing capacity around piles can be satisfied in that way.Last,some current principal methods about calculating internal force and deformation of anchor anti-slide piles is analyzed,and some main factors effecting shape distributed of internal force and deformation,and overall situation optimization design of anchor anti-slide piles is discussed.
引文
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[7]门玉明,李寻昌,刘英朴.地质灾害防治工程全局优化设计理论研究[C].全国岩土与工程学术大会论文集.北京:人民交通出版社,2003.
[2]程良奎,等.岩土锚固[M].北京:中国建筑工业出版社,2003.
[3]刘金砺.桩基础设计与计算[M].北京:中国建筑工业出版社,1990.
[4]张俊.预应力锚杆(索)抗滑桩嵌固深度研究[D].长安大学,2004.
[5]刘英朴.锚杆抗滑桩系统可靠性分析[D].长安大学,2004.
[6]李凯玲.锚杆(索)抗滑桩与岩土体相互作用研究[D].长安大学,2004.
[7]门玉明,李寻昌,刘英朴.地质灾害防治工程全局优化设计理论研究[C].全国岩土与工程学术大会论文集.北京:人民交通出版社,2003.
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