圆形抗滑桩-拱形挡土板支挡体系设计方法

doi:10.3969/j.issn.1000-1565.2025.02.001

河北大学学报(自然科学版) ›› 2025, Vol. 45 ›› Issue (2): 113-122.DOI: 10.3969/j.issn.1000-1565.2025.02.001

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圆形抗滑桩-拱形挡土板支挡体系设计方法

凌贤长^1,2,3,卢凡¹,丛晟亦^1,2,3,朱腾^1,2,3

收稿日期:2024-11-10 发布日期:2025-03-26
通讯作者: 丛晟亦(1989—)
作者简介:凌贤长(1963—),男,哈尔滨工业大学教授,博士,主要从事交通岩土工程、边坡安全防控、寒区冻土工程、特殊岩土工程、岩土地震工程、岩土防渗加固和固废综合利用等方向研究. E-mail:lingxianzhang@hit.edu.cn
基金资助:
国家重点研发计划课题(2018YFC1505305);国家自然科学基金面上项目(42471149);黑龙江省自然科学基金资助项目(LH2022E072);重庆市自然科学基金资助项目(CSTB2023NSCQ-MSX0109)

Design method of circular anti-slide pile-arch retaining plates

LING Xianzhang^{1, 2, 3}, LU Fan¹, CONG Shengyi^{1, 2, 3}, ZHU Teng^{1, 2, 3}

1. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China; 2. Chongqing Research Institute, Harbin Institute of Technology, Chongqing 401135, China; 3. Heilongjiang Research Center for Rail Transit Engineering in Cold Regions, Harbin 150090, China

Received:2024-11-10 Published:2025-03-26

摘要/Abstract

摘要： 采用适于机械钻孔的圆形抗滑桩代替现行矩形抗滑桩,预制拱形挡土板,提出一种新型拱形板-桩墙支挡体系.在此基础上,根据桩间静力平衡和强度条件,建立圆形抗滑桩-拱形挡土板支挡体系合理桩间距确定方法,以及抗滑桩悬臂段弯矩与剪力计算公式.由抗滑桩间挡土板受力机制,构建考虑土拱效应的挡土板土压力计算方法.依托某高速铁路路堑边坡工程,将建立的设计方法应用于工程实例,并验证设计方法的可靠性.研究结果可为圆形抗滑桩-拱形挡土板支挡体系实际工程应用提供一定参考.

关键词: 圆形抗滑桩, 拱形挡土板, 土拱效应, 路堑边坡, 设计方法

Abstract: A new arched sheet-pile retaining wall was proposed by employing circular anti-slide piles, which are more suitable for mechanical drilling than rectangular piles used in current pile sheet retaining walls, and precast arch retaining plate. On this basis, based on the static equilibrium conditions and strength conditions between the anti-slip piles, and based on the soil arch effect, the method of determining the reasonable pile spacing of the new arched sheet-pile retaining wall support system was proposed. Moreover, the calculating formulae for the bending moment and shear force of the cantilever section of the anti-slip piles were derived. The equation of soil pressure of the retaining plate considering the soil arch effect was established by the force transfer mechanism of the retaining plate between the anti-slip piles. Based on a cutting slope along the high-speed railway in Northeast China, the above established design method was applied to an engineering example and the reliability of the design method was verified by numerical simulation. This study puts forward preliminary reference on the application of arched sheet-pile retaining wall in engineering.

Key words: circular anti-slide pile, arch retaining plate, soil arch effect, cutting slope, design method

中图分类号:

TU47

凌贤长,卢凡,丛晟亦,朱腾. 圆形抗滑桩-拱形挡土板支挡体系设计方法[J]. 河北大学学报(自然科学版), 2025, 45(2): 113-122.

LING Xianzhang, LU Fan, CONG Shengyi, ZHU Teng. Design method of circular anti-slide pile-arch retaining plates[J]. Journal of Hebei University(Natural Science Edition), 2025, 45(2): 113-122.

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圆形抗滑桩-拱形挡土板支挡体系设计方法

Design method of circular anti-slide pile-arch retaining plates

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