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A platform for research: civil engineering, architecture and urbanism
Round dado space thickness calculation method based on implicit iteration criterion
The invention provides a circular retaining wall space thickness calculation method based on an implicit iteration criterion, and the method comprises the following steps: taking a sliding body around a retaining wall as an annular hollow cylinder, and considering the influence of the geometric dimension of the section of the retaining wall on the soil pressure and the influence of multiple layers of soil; establishing a calculation model of active soil pressure acting on the cylinder; according to the relation between the thickness of the retaining wall and the excavation radius of the pile foundation pit, the function relation between the circumferential stress of the retaining wall and the thickness of the retaining wall is established; assuming that the contribution of the circumferential steel bars to the circumferential resistance of the retaining wall is not considered, determining the circumferential strength of the retaining wall; and based on an implicit iteration criterion, performing iterative calculation on the established calculation model of the active soil pressure acting on the cylinder, and calculating the corresponding dado thickness when the circumferential stress of the ith layer of soil dado meets the circumferential strength of the dado. And the retaining wall thickness of the hole pile foundation corresponding to different depths and different pile diameters can be efficiently and accurately solved.
本发明提供了一种基于隐式迭代准则的圆形护壁空间厚度计算方法，包括以下步骤：将护壁周围的滑动体看作是一个环状的空心圆柱体，考虑护壁断面的几何尺寸对土压力的影响以及多层土的影响，建立作用于圆柱体上的主动土压力的计算模型；根据护壁厚度与桩基础基坑开挖半径的关系，建立护壁的环向应力与护壁厚度的函数关系；假定不考虑环向钢筋对护壁环向抗力的贡献，确定护壁的环向强度；基于隐式迭代准则，对建立的作用于圆柱体上的主动土压力的计算模型进行迭代计算，计算第i层土护壁的环向应力满足护壁的环向强度时所对应的护壁厚度。可以高效准确地求解出孔桩基础在不同深度不同桩径对应的护壁厚度。
Round dado space thickness calculation method based on implicit iteration criterion
The invention provides a circular retaining wall space thickness calculation method based on an implicit iteration criterion, and the method comprises the following steps: taking a sliding body around a retaining wall as an annular hollow cylinder, and considering the influence of the geometric dimension of the section of the retaining wall on the soil pressure and the influence of multiple layers of soil; establishing a calculation model of active soil pressure acting on the cylinder; according to the relation between the thickness of the retaining wall and the excavation radius of the pile foundation pit, the function relation between the circumferential stress of the retaining wall and the thickness of the retaining wall is established; assuming that the contribution of the circumferential steel bars to the circumferential resistance of the retaining wall is not considered, determining the circumferential strength of the retaining wall; and based on an implicit iteration criterion, performing iterative calculation on the established calculation model of the active soil pressure acting on the cylinder, and calculating the corresponding dado thickness when the circumferential stress of the ith layer of soil dado meets the circumferential strength of the dado. And the retaining wall thickness of the hole pile foundation corresponding to different depths and different pile diameters can be efficiently and accurately solved.
本发明提供了一种基于隐式迭代准则的圆形护壁空间厚度计算方法，包括以下步骤：将护壁周围的滑动体看作是一个环状的空心圆柱体，考虑护壁断面的几何尺寸对土压力的影响以及多层土的影响，建立作用于圆柱体上的主动土压力的计算模型；根据护壁厚度与桩基础基坑开挖半径的关系，建立护壁的环向应力与护壁厚度的函数关系；假定不考虑环向钢筋对护壁环向抗力的贡献，确定护壁的环向强度；基于隐式迭代准则，对建立的作用于圆柱体上的主动土压力的计算模型进行迭代计算，计算第i层土护壁的环向应力满足护壁的环向强度时所对应的护壁厚度。可以高效准确地求解出孔桩基础在不同深度不同桩径对应的护壁厚度。
Round dado space thickness calculation method based on implicit iteration criterion
一种基于隐式迭代准则的圆形护壁空间厚度计算方法
HE SONGYANG (author) / GONG TAO (author) / HAN DAGANG (author) / ZHANG RUBAO (author) / XIAO YE (author) / LIU XIANGYUN (author) / YAN XIUQING (author) / HUANG XING (author) / YANG YANG (author) / MA HAIYUN (author)
2022-12-27
Patent
Electronic Resource
Chinese
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