

浏览全部资源
扫码关注微信
1.湖北省输电线路工程技术研究中心(三峡大学),湖北 宜昌 443002
2.三峡大学 电气与新能源学院,湖北 宜昌 443002
3.国网河南省电力公司三门峡供电公司,河南 三门峡 472000
Received:25 January 2025,
Revised:2025-03-31,
Published:28 August 2025
移动端阅览
陈彬,吴家乐,贾燕峰等.持续性强降雨条件下湿陷性黄土地区输电铁塔基础稳定性研究[J].防灾减灾工程学报,2025,45(04):712-725.
CHEN Bin,WU Jiale,JIA Yanfeng,et al.Research on Stability of Transmission Tower Foundations in Collapsible Loess Areas under Continuous Heavy Rainfall Conditions[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(04):712-725.
陈彬,吴家乐,贾燕峰等.持续性强降雨条件下湿陷性黄土地区输电铁塔基础稳定性研究[J].防灾减灾工程学报,2025,45(04):712-725. DOI: 10.13409/j.cnki.jdpme.20250125001.
CHEN Bin,WU Jiale,JIA Yanfeng,et al.Research on Stability of Transmission Tower Foundations in Collapsible Loess Areas under Continuous Heavy Rainfall Conditions[J].Journal of Disaster Prevention and Mitigation Engineering,2025,45(04):712-725. DOI: 10.13409/j.cnki.jdpme.20250125001.
持续性强降雨条件下黄土体水力梯度上升,土体由非饱和状态向饱和状态转变,容易导致黄土地区输电铁塔基础发生失稳问题。为研究降雨对湿陷性黄土地区铁塔基础稳定性的影响,基于非饱和土Mohr‑Coulomb模型,计及土体的黏聚力、内摩擦角、密度、泊松比与饱和度之间的非线性关系,构建考虑降雨入渗和应力场耦合的铁塔基础渗流‑应力耦合模型。通过该模型揭示降雨条件下湿陷性黄土地基的水力特征时空演化规律,分析前峰型、后峰型、中峰型、均匀型降雨模式下的基础‑土体空间应变与应力响应特征。结果表明:在降雨总量和附加应力相同条件下,后两种降雨模式对湿陷性黄土地区塔基的扰动最为显著,基础的早期累积沉降量显著大于前锋型和后峰型降雨模式。降雨入渗过程中,入渗区土体竖向有效应力逐步降低,基础‑土体界面的负侧摩擦阻力绝对值随之增大。对比分析湿陷性黄土地区掏挖式、灌注桩和阶梯型三种常用基础在降雨过程中的抗沉降性能,发现掏挖式基础因扩大头结构能有效延缓负摩阻力的发展,具有优异的抗湿陷性沉降性能。
Under continuous heavy rainfall conditions
the hydraulic gradient of loess increases
and the soil transitions from an unsaturated to a saturated state
which can easily lead to instability of transmission tower foundations in loess areas. To investigate the influence of rainfall on the stability of tower foundations in collapsible loess areas
a seepage-stress coupling model for tower foundations was established based on the Mohr-Coulomb model for unsaturated soil. This model incorporated the nonlinear relationships between soil cohesion
internal friction angle
density
Poisson's ratio
and saturation
considering the coupling between rainfall infiltration and the stress field. Using this model
the spatiotemporal evolution patterns of hydraulic characteristics in collapsible loess foundations under rainfall were revealed
and the spatial strain and stress response characteristics of the foundation–soil system were analyzed under four rainfall patterns: early-peak
late-peak
mid-peak
and uniform patterns. The results showed that under the same total rainfall and additional stress conditions
the latter two rainfall patterns caused the most significant disturbance to the foundations in collapsible loess areas
with the early-stage cumulative settlement of the foundation being significantly greater than that under early-peak and late-peak patterns. During the rainfall infiltration process
the vertical effective stress in the infiltrated soil gradually decreased
and the absolute value of the negative lateral friction resistance at the foundation-soil interface increased accordingly. A comparative analysis of the anti-settlement performance of three common foundation types—excavated
cast-in-place pile
and stepped foundations—in collapsible loess areas during the rainfall process revealed that the excavated foundation can effectively delay the development of negative friction resistance due to its enlarged head structure
demonstrating excellent resistance to collapsible settlement.
何亮 , 李慧丽 , 刘维正 , 等 . 多雨地区路基湿度变化对路面力学响应影响研究 [J/OL]. 防灾减灾工程学报 , 1 ‑ 11 [ 2024-06-20 ]. https:∥doi.org/10.13409/j.cnki.jdpme. 20240201002 https://doi.org/10.13409/j.cnki.jdpme.20240201002 .
He L , Li H L , Liu W Z , et al . Study on the effect of moisture variation in subgrade on the mechanical response of pavement in rainy areas [J/OL]. Journal of Disaster Prevention and Mitigation Engineering , 1 - 11 [ 2024-06-20 ]. https:∥doi.org/10.13409/j.cnki.jdpme. 20240201002. https://doi.org/10.13409/j.cnki.jdpme.20240201002. (in Chinese)
周凤玺 , 周志雄 , 邵生俊 . 非饱和黄土的增湿湿陷变形特性分析 [J]. 岩土工程学报 , 2021 , 43 ( 增1 ): 36 - 40 .
Zhou F X , Zhou Z X , Shao S J . Wetting deformation properties of unsaturated collapsible loess [J]. Chinese Journal of Geotechnical Engineering , 2021 , 43 ( Sup1 ): 36 - 40 . (in Chinese)
陈正汉 , 郭楠 . 非饱和土与特殊土力学及工程应用研究的新进展 [J]. 岩土力学 , 2019 , 40 ( 1 ): 1 - 54 .
Chen Z H , Guo N . New developments of mechanics and application for unsaturated soils and special soils [J]. Rock and Soil Mechanics , 2019 , 40 ( 1 ): 1 - 54 . (in Chinese)
Yao W M , Li C D , Zhan H B , et al . Time-dependent slope stability during intense rainfall with stratified soil water content [J]. Bulletin of Engineering Geology and the Environment , 2019 , 78 ( 1 ): 4805 - 4819 .
樊培培 , 张凌凯 , 丁旭升 . 干湿-冻融循环条件下湿陷性黄土剪切及压缩特性的劣化规律 [J]. 岩土力学 , 2024 , 45 ( 7 ): 2050 - 2060 .
Fan P P , Zhang L K , Ding X S . Deterioration law of shear and compression characteristics of collapsible loess under dry-wet and freeze-thaw cycles [J]. Rock and Soil Mechanics , 2024 , 45 ( 7 ): 2050 - 2060 . (in Chinese)
韦秉旭 , 陈亮胜 , 肖罗明 , 等 . 基于多场耦合的膨胀土边坡非饱和降雨入渗分析 [J]. 长江科学院院报 , 2021 , 38 ( 3 ): 90 - 96 .
Wei B X , Chen L S , Xiao L M , et al . Unsaturated seepage analysis of expansive soil slope under rainfall infiltration based on multi-field coupling [J]. Journal of Yangtze River Scientific Research Institute , 2021 , 38 ( 3 ): 90 - 96 . (in Chinese)
董建军 , 杨嫡 , 郑高阳 , 等 . 降雨条件下特高压输电线路基础安全稳定性研究 [J]. 中国安全科学学报 , 2021 , 31 ( 1 ): 116 - 124 .
Dong J J , Yang D , Zhang G Y , et al . Research on safety and stability of UHV transmission line foundations under rainfall [J]. China Safety Science Journal , 2021 , 31 ( 1 ): 116 - 124 . (in Chinese)
张治国 , 毛敏东 , 朱正国 , 等 . 间歇性强降雨诱发滑坡对抗滑桩非线性力学响应分析 [J]. 岩土力学 , 2023 , 44 ( 7 ): 2073 - 2094 .
Zhang Z G , Mao M D , Zhu Z G , et al . Analysis of nonlinear mechanical response of anti-slide pile induced by landslides with intermittent heavy rainfall [J]. Rock and Soil Mechanics , 2023 , 44 ( 7 ): 2073 - 2094 . (in Chinese)
赵鹏 , 张辉 , 禹聪 , 等 . 杆塔荷载和降雨特征对边坡稳定性的影响分析: 以滇东北山区输电线路为例 [J]. 水利水电技术(中英文) , 2024 , 55 ( 增1 ): 350 - 363 .
Zhao P , Zhang H , Yu C , et al . Impacts analysis of tower load and rainfall characteristics on slope stability:A case study of transmission lines in mountainous areas of northeast Yunnan [J]. Water Resources and Hydropower Engineering , 2024 , 55 ( Sup1 ): 350 - 363 (in Chinese)
毕钊 . 黄土填方地基不均匀沉降及降雨入渗对桩筏基础的影响研究 [D]. 西安 : 长安大学 , 2022 .
Bi Z . Study on the influence of uneven settlement of loess filled foundation and rainfall infiltration on pile raft foundation [D ]. Xian'an : Chang'an University , 2022 (in Chinese)
孙晨东 . 浸水状态下湿陷性黄土地区长短桩基础负摩阻力研究 [D]. 兰州 : 兰州理工大学 , 2023 .
Sun C D . Study on negative friction of long short pile foundation in collapsible loess area under water immersion [D]. Lanzhou : Lanzhou University of Technology , 2023 . (in Chinese)
张延杰 , 王旭 , 梁庆国 , 等 . 浸水条件下湿陷性黄土地基群桩基础承载特性模型试验研究 [J]. 岩土工程学报 , 2021 , 43 ( 增1 ): 219 - 223 .
Zhang Y J , Wang X , Liang Q G , et al . Model tests on bearing behavior of pile groups in collapsible loess ground under water immersion [J]. Chinese Journal of Geotechnical Engineering , 2021 , 43 ( Sup1 ): 219 - 223 . (in Chinese)
刘建磊 , 卫童瑶 , 惠寒斌 , 等 . 大厚度非连续湿陷性黄土浸水变形特征分析 [J]. 地质力学学报 , 2024 , 30 ( 6 ): 921 - 932 .
Liu J L , Wei T Y , Hui H B , et al . Analysis of soaking deformation characteristics of large-thickness discontinuous collapsible loess [J]. Journal of Geomechanics , 2024 , 30 ( 6 ): 921 - 932 . (in Chinese)
王龙 , 陈国兴 , 胡伟 , 等 . 基于拟动力法抗滑桩加固非饱和土边坡稳定性分析 [J]. 防灾减灾工程学报 , 2023 , 43 ( 6 ): 1386 - 1394 .
Wang L , Chen G X , Hu W , et al . Seismic stability of unsaturated soil slopes stabilized by anti-slide piles based on pseudo-dynamic approach [J]. Journal of Disaster Prevention and Mitigation Engineering , 2023 , 43 ( 6 ): 1386 - 1394 . (in Chinese)
张永杰 , 胡涛 , 郭一鹏 , 等 . 降雨作用下堆积层边坡与下穿隧道相互作用模型试验研究 [J]. 岩土力学 , 2024 , 45 ( 12 ): 3613 - 3623 .
Zhang Y J , Hu T , Guo Y P , et al . Model test on interaction between colluvial slope and underpass tunnel under rainfall [J]. Rock and Soil Mechanics , 2024 , 45 ( 12 ): 3613 - 3623 . (in Chinese)
马云峰 , 彭森 , 葛苗苗 , 等 . 黄土高填方地基上部建筑施建控制标准研究 [J]. 防灾减灾工程学报 , 2023 , 43 ( 6 ): 1415 - 1424 .
Ma Y F , Peng S , Ge M M , et al . Study on construction control ctandard of upper buildings on loess high fill foundation [J]. Journal of Disaster Prevention and Mitigation Engineering , 2023 , 43 ( 6 ): 1415 - 1424 . (in Chinese)
高凌霞 , 栾茂田 , 杨庆 . 基于微结构参数主成分的黄土湿陷性评价 [J]. 岩土力学 , 2012 , 33 ( 7 ): 1921 - 1926 .
Gao L X , Luan M T , Yang Q . Evaluation of loess collapsibility based on principal components of microstructural parameters [J]. Rock and Soil Mechanics , 2012 , 33 ( 7 ): 1921 - 1926 . (in Chinese)
Van Genuchten M T . A closed-form equation for predicting the hydraulic conductivity of unsaturated soils [J]. Soil Science Society of America Journal , 1980 , 44 ( 5 ): 892 - 898 .
Fredlund D G , Morgenstern N R , Widger R A . The shear strength of unsaturated soils [J]. Canadian Geotechnical Journal , 1978 , 15 ( 3 ): 313 - 321 .
Gan J K M , Fredlund D G , Rahardjo H . Determination of the shear strength parameters of an unsaturated soil using the direct shear test [J]. Canadian Geotechnical Journal , 1988 , 25 ( 3 ): 500 - 510 .
员康锋 , 张军 , 员盼锋 . 基于饱和度的湿陷性黄土邓肯-张模型参数变化规律研究 [J]. 工程地质学报 , 2015 , 23 ( 5 ): 943 - 947 .
Yuan K F , Zhang J , Yuan P F . Variation regularity of duncan-chang model parameters using saturation of collapsing loess [J]. Journal of Engineering Geology , 2015 , 23 ( 5 ): 943 - 947 . (in Chinese)
马少坤 , 黄茂松 , 范秋雁 . 基于饱和土总应力强度指标的非饱和土强度理论及其应用 [J]. 岩石力学与工程学报 , 2009 , 28 ( 3 ): 635 - 640 .
Ma S K , Huang M S , Fan Q Y . Unsaturated soil strength theory based on total stress strength indexes of saturated soil and its application [J]. Chinese Journal of Rock Mechanics and Engineering , 2009 , 28 ( 3 ): 635 - 640 . (in Chinese)
蔡国庆 , 张策 , 黄哲文 , 等 . 含水率对砂质Q3黄土抗剪强度影响的试验研究 [J]. 岩土工程学报 , 2020 , 42 ( 增2 ): 32 - 36 .
Cai G Q , Zhang C , Huang Z W , et al . Experimental study on influences of moisture content on shear strength of unsaturated loess [J]. Chinese Journal of Geotechnical Engineering , 2020 , 42 ( Sup2 ): 32 - 36 . (in Chinese)
郑宏 , 李春光 , 李焯芬 , 等 . 求解安全系数的有限元法 [J]. 岩土工程学报 , 2002 , 24 ( 5 ): 626 - 628 .
Zheng H , Li C G , Li C F , et al . Finite element method for solving the factor of safety [J]. Chinese Journal of Geotechnical Engineering , 2002 , 24 ( 5 ): 626 - 628 . (in Chinese)
王学滨 . 软化模量对岩样全部变形特征的影响 [J]. 岩土工程学报 , 2006 , 28 ( 5 ): 600 - 605 .
Wang X B . Effect of softening modulus on entire deformational characteristics of rock specimen [J]. Chinese Journal of Geotechnical Engineering , 2006 , 28 ( 5 ): 600 - 605 . (in Chinese)
李嘉瑞 , 景立平 , 董瑞 , 等 . ABAQUS模拟土-结构相互作用时人工边界的选取 [J]. 地震工程与工程振动 , 2020 , 40 ( 3 ): 174 - 182 .
Li J R , Jing L P , Dong R , et al . Artificial boundary selection when calculating soil-structure interaction with abaqus [J]. Earthquake Engineering and Engineering Dynamics , 2020 , 40 ( 3 ): 174 - 182 . (in Chinese)
架空输电线路荷载规范 : DL/T 5551—2018 [S]. 北京 : 中国计划出版社 , 2018 .
Tsai T L , Wang J K . Examination of influences of rainfall patterns on shallow landslides due to dissipation of matric suction [J]. Environmental Earth Sciences , 2011 , 63 ( 1 ): 65 - 75 .
豆红强 , 谢森华 , 王浩 , 等 . 降雨条件下球状风化花岗岩类土质边坡渗流特性与稳定性分析 [J]. 工程地质学报 , 2023 , 31 ( 2 ): 638 - 649 .
Dou H Q , Xie S H , Wang H , et al . Numerical analysis of seepage characteristics and stability for spheroidal weathered granite-like soil slopes under rainfall conditions [J]. Journal of Engineering Geology , 31 ( 2 ): 638 - 649 . (in Chinese)
黄雪峰 , 陈正汉 , 哈双 , 等 . 大厚度自重湿陷性黄土中灌注桩承载性状与负摩阻力的试验研究 [J]. 岩土工程学报 , 2007 , 29 ( 3 ): 338 - 346 .
Huang X F , Chen Z H , Ha S , et al . Research on bearing behaviors and negative friction force for filling piles in the site of collapsible loess with big thickness [J]. Chinese Journal of Geotechnical Engineering , 2007 , 29 ( 3 ): 338 - 346 . (in Chinese)
朱元青 , 陈正汉 . 自重湿陷性黄土的力学特性试验研究 [J]. 后勤工程学院学报 , 2007 ( 4 ): 50 - 55 .
Zhu Y Q , Chen Z H . Experimental study on mechanical properties of self weight collapsible loess [J]. Journal of the School of Logistics Engineering , 2007 ( 4 ): 50 - 55 . (in Chinese)
0
Views
0
下载量
0
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution
苏公网安备32010202012147号