Application of inclined chair pile-anchor support technology for slope
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摘要: 贵阳某边坡工程受场地空间限制需直立开挖，因边坡上方邻近既有水厂建（构）筑物，需严格控制边坡变形，为此提出采用斜椅式桩锚支护体系。通过数值模拟分析了支护后边坡的稳定性、施工过程的位移控制以及支护结构的受力特征。结果表明，斜椅式桩锚支护体系受力合理、变形控制效果好。边坡监测结果显示，竣工后边坡各测点最大累计位移量均处于较小范围且趋于稳定，坡顶土体测斜曲线趋于收敛。东部水厂边坡工程竣工后运行状态良好，在满足场地空间的前提下，有效地保护了坡顶既有水厂的安全，所采用的斜椅式桩锚支护方案可供类似工程参考。Abstract: Due to space limitations, a slope project in Guiyang requires vertical excavation. Because the slope is adjacent to the original water plant buildings and structures, the slope deformation needs to be strictly controlled. Therefore, the inclined chair pile-anchor support system was proposed. Through numerical simulation, the stability of the slope after supporting, the displacement control during construction, and the stress characteristics of the support structure were discussed. The results show that the supporting system has reasonable stress and a good deformation control effect. The monitoring results show that the maximum cumulative displacement of each measuring point of the slope section is in a small range, the deformation is gradually stable, the inclinometer curve tends to converge, and the field treatment measures have obvious effects. After the completion of the slope project of the Eastern Water Plant, the operation status was good. On the premise of ensuring the site space, it effectively protected the safety of the existing water plant at the top of the slope. The inclined chair pile anchor support scheme adopted can be used as a reference for similar projects.
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表 1 地层物理力学参数表
地层 重度
/(kN·m−3)弹性模量
/MPa泊松比 黏聚
力/kPa内摩擦
角/（°）①碎石土 17 60 0.25 15 45 ②强风化石英砂岩 24.6 1200 0.3 120 24 ③中等风化页岩 24.8 1000 0.35 70 20 ④中等风化灰岩夹页岩 24.8 3000 0.32 550 35 
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[1] 郭全元, 陈春强, 杨 代, 等. 桩锚支护锚固体段预加固在软土地层应用研究[J]. 地下空间与工程学报, 2023, 19(S1): 278-286. (GUO Q Y, CHEN C Q, YANG D, et al. Research on the application of pre-reinforcement of anchor section in pile-anchor support in soft soil[J]. Chinese Journal of Underground Space and Engineering, 2023, 19(S1): 278-286. (in Chinese)GUO Q Y, CHEN C Q, YANG D, et al. Research on the application of pre-reinforcement of anchor section in pile-anchor support in soft soil[J]. Chinese Journal of Underground Space and Engineering, 2023, 19（S1）: 278-286. (in Chinese) [2] 邓 鹏. 预应力锚索+抗滑桩支护技术在滑坡治理中的应用[J]. 中外建筑, 2010(6): 170-172. (DENG P. Application of prestressed cable + piles Supporting technology in slope control[J]. Chinese & Overseas Architecture, 2010(6): 170-172. (in Chinese) doi: 10.3969/j.issn.1008-0422.2010.06.060DENG P. Application of prestressed cable + piles Supporting technology in slope control[J]. Chinese & Overseas Architecture, 2010（6）: 170-172. (in Chinese) doi: 10.3969/j.issn.1008-0422.2010.06.060 [3] 吴乃文, 李 如. 桩锚支护技术在滑坡体加固中的应用[J]. 云南水力发电, 2019, 35(1): 113-116. (WU N W, LI R. Application of pile-anchor support technology in landslide reinforcement[J]. Yunnan Water Power, 2019, 35(1): 113-116. (in Chinese) doi: 10.3969/j.issn.1006-3951.2019.01.029WU N W, LI R. Application of pile-anchor support technology in landslide reinforcement[J]. Yunnan Water Power, 2019, 35（1）: 113-116. (in Chinese) doi: 10.3969/j.issn.1006-3951.2019.01.029 [4] 罗应芬. 滑坡体加固中桩锚支护技术的应用[J]. 交通世界, 2023(16): 25-27. (LUO Y F. Application of pile-anchor supporting technology in landslide reinforcement[J]. Transpoworld, 2023(16): 25-27. (in Chinese)LUO Y F. Application of pile-anchor supporting technology in landslide reinforcement[J]. Transpoworld, 2023(16): 25-27. (in Chinese) [5] 李晓翠, 甘 磊, 甘 胜, 等. 滑坡体预应力锚索抗滑桩参数优化设计研究[J]. 水利水电科技进展, 2023, 43(4): 98-104. (LI X C, GAN L, GAN S, et al. Study on parameter optimization design of anti-slide piles with pre-stressed anchor cable for landslide mass[J]. Advances in Science and Technology of Water Resources, 2023, 43(4): 98-104. (in Chinese) doi: 10.3880/j.issn.1006-7647.2023.04.015LI X C, GAN L, GAN S, et al. Study on parameter optimization design of anti-slide piles with pre-stressed anchor cable for landslide mass[J]. Advances in Science and Technology of Water Resources, 2023, 43（4）: 98-104. (in Chinese) doi: 10.3880/j.issn.1006-7647.2023.04.015 [6] 金 波, 程方方, 陈宁宁. 偏心预应力锚索抗滑桩模拟试验研究[J]. 岩土工程技术, 2008, 22(3): 131-135,138. (JIN B, CHENG F F, CHEN N N. Model test research for eccentric prestressed anchor rope anti-slide pile[J]. Geotechnical Engineering Technique, 2008, 22(3): 131-135,138. (in Chinese) doi: 10.3969/j.issn.1007-2993.2008.03.006JIN B, CHENG F F, CHEN N N. Model test research for eccentric prestressed anchor rope anti-slide pile[J]. Geotechnical Engineering Technique, 2008, 22（3）: 131-135,138. (in Chinese) doi: 10.3969/j.issn.1007-2993.2008.03.006 [7] 张金保, 彭 瑜, 王鹏炜, 等. 竖向预应力锚索抗滑桩力学计算方法研究[J]. 水利水电技术, 2020, 51(6): 138-146. (ZHANG J B, PENG Y, WANG P W, et al. Study on mechanical calculation method of anti-slide pile with vertical prestressed anchor cable[J]. Water Resources and Hydropower Engineering, 2020, 51(6): 138-146. (in Chinese)ZHANG J B, PENG Y, WANG P W, et al. Study on mechanical calculation method of anti-slide pile with vertical prestressed anchor cable[J]. Water Resources and Hydropower Engineering, 2020, 51（6）: 138-146. (in Chinese) [8] 王 杰, 韩 磊, 徐云峰. 双排桩支护结构计算模型改进与分析[J]. 岩土工程技术, 2019, 33(1): 55-58. (WANG J, HAN L, XU Y F. Analysis on the model of double-row piles for deep excavation[J]. Geotechnical Engineering Technique, 2019, 33(1): 55-58. (in Chinese) doi: 10.3969/j.issn.1007-2993.2019.01.013WANG J, HAN L, XU Y F. Analysis on the model of double-row piles for deep excavation[J]. Geotechnical Engineering Technique, 2019, 33（1）: 55-58. (in Chinese) doi: 10.3969/j.issn.1007-2993.2019.01.013 [9] 欧明喜. h型抗滑桩力学机理及其工程应用研究[D]. 重庆: 重庆大学, 2012. (OU M X. The study on mechanical mechanism of h-type anti-slide piles and its engineering applications[D]. Chongqing: Chongqing University, 2012. (in Chinese)OU M X. The study on mechanical mechanism of h-type anti-slide piles and its engineering applications[D]. Chongqing: Chongqing University, 2012. (in Chinese) [10] 王 羽. h型抗滑桩设计计算方法研究[D]. 成都: 成都理工大学, 2011. (WANG Y. Calculation theory and design method research on h type of anti-sliding piles[D]. Chengdu: Chengdu University of Technology, 2011. (in Chinese)WANG Y. Calculation theory and design method research on h type of anti-sliding piles[D]. Chengdu: Chengdu University of Technology, 2011. (in Chinese) [11] 邓友生, 杨 彪, 姚志刚, 等. h型抗滑桩受力性能模型试验研究[J]. 大连交通大学学报, 2024, 45(1): 73-77. (DENG Y S, YANG B, YAO Z G, et al. Model tests on mechanical behavior of h-type anti-slide pile[J]. Journal of Dalian Jiaotong University, 2024, 45(1): 73-77. (in Chinese)DENG Y S, YANG B, YAO Z G, et al. Model tests on mechanical behavior of h-type anti-slide pile[J]. Journal of Dalian Jiaotong University, 2024, 45（1）: 73-77. (in Chinese) [12] 李永辉, 张 信, 张鼎浩, 等. 曲面滑坡条件下h型抗滑桩受力性状模型试验研究[J]. 工程力学, 2024, 41(7): 134-146. (LI Y H, ZHANG X, ZHANG D H, et al. Model test on mechanical behavior of h-type anti-slide pile under curved landslide[J]. Engineering Mechanics, 2024, 41(7): 134-146. (in Chinese) doi: 10.6052/j.issn.1000-4750.2022.05.0498LI Y H, ZHANG X, ZHANG D H, et al. Model test on mechanical behavior of h-type anti-slide pile under curved landslide[J]. Engineering Mechanics, 2024, 41（7）: 134-146. (in Chinese) doi: 10.6052/j.issn.1000-4750.2022.05.0498 [13] 刘新荣, 欧明喜, 郑颖人, 等. h型抗滑桩抗滑机制模型试验研究[J]. 土木建筑与环境工程, 2013, 35(2): 33-37, 91. (LIU X R, OU M X, ZHENG Y R, et al. Model investigation of sliding resistence mechanism for h-type anti-slide pile[J]. Journal of Civil, Architectural & Environment Engineering, 2013, 35(2): 33-37, 91. (in Chinese)LIU X R, OU M X, ZHENG Y R, et al. Model investigation of sliding resistence mechanism for h-type anti-slide pile[J]. Journal of Civil, Architectural & Environment Engineering, 2013, 35(2): 33-37, 91. (in Chinese) [14] 刘 雄, 李立锋, 周 侨, 等. h形抗滑桩室内模型试验研究[J]. 公路与汽运, 2023(1): 64-68,74. (LIU X, LI L F, ZHOU Q, et al. Laboratory model test of H-shaped anti-slide piles[J]. Highways & Automotive Applications, 2023(1): 64-68,74. (in Chinese)LIU X, LI L F, ZHOU Q, et al. Laboratory model test of H-shaped anti-slide piles[J]. Highways & Automotive Applications, 2023（1）: 64-68,74. [15] 冯 震, 王博怡, 柳浩然, 等. 基于坡面形态的h型抗滑桩加固效果分析[J]. 科学技术与工程, 2022, 22(30): 13467-13476. (FENG Z, WANG B Y, LIU H R, et al. Reinforcement effect analysis of h-type anti-slide pile based on slope morphology[J]. Science Technology and Engineering, 2022, 22(30): 13467-13476. (in Chinese) doi: 10.3969/j.issn.1671-1815.2022.30.040FENG Z, WANG B Y, LIU H R, et al. Reinforcement effect analysis of h-type anti-slide pile based on slope morphology[J]. Science Technology and Engineering, 2022, 22（30）: 13467-13476. (in Chinese) doi: 10.3969/j.issn.1671-1815.2022.30.040 [16] 姚伟悬. 复合地层下h型抗滑桩的受力特性及桩间距影响研究[J]. 水利技术监督, 2023(11): 230-232,251. (YAO W X. Study on mechanical characteristics and influence of pile spacing of h-type anti-slip piles in composite strata[J]. Technical Supervision in Water Resources, 2023(11): 230-232,251. (in Chinese) doi: 10.3969/j.issn.1008-1305.2023.11.060YAO W X. Study on mechanical characteristics and influence of pile spacing of h-type anti-slip piles in composite strata[J]. Technical Supervision in Water Resources, 2023（11）: 230-232,251. (in Chinese) doi: 10.3969/j.issn.1008-1305.2023.11.060 [17] 张 虹. 不同桩排间净距的h形抗滑桩的数值模拟研究[J]. 水利科技与经济, 2023, 29(9): 92-95,105. (ZHANG H. Numerical simulation of H-shaped anti-slide piles with different row spacing[J]. Water Conservancy Science and Technology and Economy, 2023, 29(9): 92-95,105. (in Chinese)ZHANG H. Numerical simulation of H-shaped anti-slide piles with different row spacing[J]. Water Conservancy Science and Technology and Economy, 2023, 29（9）: 92-95,105. [18] 陆兆成. 带斜撑h形抗滑桩结构的研究与分析[D]. 广州: 华南理工大学, 2011. (LU Z C. Research and analysis on h type slide-resistant piles structure with diagonal bracing[D]. Guangzhou: South China University of Technology, 2011. (in Chinese)LU Z C. Research and analysis on h type slide-resistant piles structure with diagonal bracing[D]. Guangzhou: South China University of Technology, 2011. (in Chinese) -
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