兰州交通大学土木工程学院,甘肃 兰州 730070
黄安琪(1995—),女,硕士研究生。主要从事寒区工程防震减灾研究。E‑mail:616424696@qq.com
张熙胤(1989—),男,教授,博士。主要从事寒区工程防灾减灾研究。E‑mail: zhangxiyin@mail.lzjtu.cn
收稿:2022-07-04,
修回:2022-08-19,
纸质出版:2024-02-15
移动端阅览
黄安琪,张熙胤,管嘉达等.西北季节性冻土场地地震反应特性研究[J].防灾减灾工程学报,2024,44(01):156-164.
HUANG Anqi,ZHANG Xiyin,GUAN Jiada,et al.Seismic Response Characteristics of Seasonally Frozen Soil Sites in Northwest China[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(01):156-164.
黄安琪,张熙胤,管嘉达等.西北季节性冻土场地地震反应特性研究[J].防灾减灾工程学报,2024,44(01):156-164. DOI: 10.13409/j.cnki.jdpme.20220704001.
HUANG Anqi,ZHANG Xiyin,GUAN Jiada,et al.Seismic Response Characteristics of Seasonally Frozen Soil Sites in Northwest China[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(01):156-164. DOI: 10.13409/j.cnki.jdpme.20220704001.
我国西北地区被季节冻土全覆盖,且近年来该区域地震频发。为研究我国西北地区季节性冻土场地的地震反应特性,开展了季节性冻土场地振动台试验,并建立了不同冻结深度的三维实体有限差分模型,对比分析了不同地震激励作用下的季节性冻土场地的地震反应特征和土体的动剪应力—动剪应变规律。结果表明:在地震激励下,冻土层的存在虽然有效抑制了地震动能量,但冻结期场地的水平位移与非冻结期相比明显较大,且竖向位移呈显著的层状震陷特征;冻土场地的峰值放大系数呈先增大后减小然后再增大的规律,并且冻土层深度越大其峰值放大系数越小。此外,通过土体的动剪应力—动剪应变关系可以发现,冻土场地地震反应具有明显的非线性特征,且冻土层的存在对地震能量具有一定的削弱作用。
Seasonally frozen soil covers the whole area of Northwestern China where earthquakes have happened frequently in recent years. In order to study the seismic response characteristics of seasonally frozen soil sites in Northwestern China, shaking table tests of seasonally frozen soil sites were carried out, and three-dimensional solid finite difference models with different freezing depths were established. Seismic responses and soil dynamic shear stress-strain relationship under different seismic excitations were analyzed. Results showed that the existence of the frozen soil layer effectively restrained the ground motion energy, while the horizontal displacement of the site in frozen status was larger than that in unfrozen status. Besides, the vertical displacement showed a significant layered seismic settlement. The peak amplification coefficient of the seasonally frozen soil first increased, then decreased and finally increased again. It was found that the thicker the frozen layer, the smaller the peak amplification coefficient. In addition, the dynamic shear stress-strain relationship of soil exhibited obvious nonlinearity, and the frozen soil layer can dissipate the seismic energy during earthquakes.
杨小利 , 王劲松 . 西北地区季节性最大冻土深度的分布和变化特征 [J]. 土壤通报 , 2008 , 39 ( 2 ): 238 ‑ 243 .
Yang X L , Wang J S . The change characteristics of maximum frozen soil depth of seasonal frozen soil in northwest China [J]. Chinese Journal of Soil Science , 2008 , 39 ( 2 ): 238 ‑ 243 . (in Chinese)
Finn W D L , Yong R N . Seismic response of frozen ground [J]. Journal of the Geotechnical Engineering Division ,ASCE, 1978 , 104 ( 10 ): 1225 ‑ 1241 .
Cox B R , Wood C M , Hazirbaba K . Frozen and unfrozen shear wave velocity seismic site classification of Fairbanks, Alaska [J]. Journal of Cold Regions Engineering , 2012 , 26 ( 3 ): 118 ‑ 145 .
盛书中 , 万永革 , 王未来 , 等 . 2010年玉树 M s 7.1地震发震断层面参数的确定 [J]. 地球物理学进展 , 2014 , 29 ( 4 ): 1555 ‑ 1562 .
Sheng S Z , Wan Y G , Wang W L , et al . The fault plane parameter determination of the 2010 Yushu M s 7.1 earthquake [J]. Progress in Geophysics , 2014 , 29 ( 4 ): 1555 ‑ 1562 . (in Chinese)
Wang W M , He J K , Wang X , et al . Rupture process models of the Yangbi and Maduo earthquakes that struck the eastern Tibetan Plateau in May 2021 [J]. Science Bulletin , 2022 , 67 ( 5 ): 466 .
潘家伟 , 李海兵 , 刘栋梁 , 等 . 2022年青海门源 M s 6.9地震地表破裂带及发震构造研究 [J]. 地质学报 , 2022 , 96 ( 1 ): 215 ‑ 231 .
Pan J W , Li H B , Liu D L , et al . Coseismic surface rupture and seismogenic structure of the 2022 M s 6.9 Menyuan earthquake, Qinghai Province, China [J]. Acta Geologica Sinica , 2022 , 96 ( 1 ): 215 ‑ 231 . (in Chinese)
彭强 . 青藏铁路9度地震区桥梁抗震设计浅析 [J]. 桥梁建设 , 2005 ( 5 ): 68 ‑ 69,77 .
Peng Q . Simple analysis of aseismatic design of bridges at 9° seismic zone of Qinghai‑Tibet railway [J]. Bridge Construction , 2005 ( 5 ): 68 ‑ 69,77 . (in Chinese)
青藏铁路 : 编写委员会 . 青藏铁路.科学技术卷 [M]∥ 多年冻土篇 . 北京 : 中国铁道出版社 , 2010 .
Qinghai‑Tibet Railway: writing committee. Qinghai-Tibet Railway. Science and technology volume [M]∥ Permafrost . Beijing : China Railway Publishing House , 2010 . (in Chinese)
张熙胤 , 陈兴冲 , 高建强 . 多年冻土区桥梁抗震研究进展 [J]. 兰州理工大学学报 , 2020 , 46 ( 2 ): 116 ‑ 120 .
Zhang X Y , Chen X C , Gao J Q . Research advance on seismic performance of bridges in permafrost regions [J]. Journal of Lanzhou University of Technology , 2020 , 46 ( 2 ): 116 ‑ 120 . (in Chinese)
于生生 , 张熙胤 , 陈兴冲 , 等 . 场地地震反应分析研究现状及展望 [J]. 防灾减灾工程学报 , 2021 , 41 ( 1 ): 181 - 192 .
Yu S S , Zhang X Y , Chen X C , et al . Present research situation and prospect on analysis of site seismic response [J]. Journal of Disaster Prevention and Mitigation Engineering , 2021 , 41 ( 1 ): 181 - 192 . (in Chinese)
Wang L , Wu Z , Sun J , et al . Characteristics of ground motion at permafrost sites along the Qinghai‑Tibet railway [J]. Soil Dynamics and Earthquake Engineering , 2009 , 29 ( 6 ): 974 ‑ 981 .
Yang Z , Dutta U , Xu G , et al . Numerical analysis of permafrost effects on the seismic site response [J]. Soil Dynamics and Earthquake Engineering , 2011 , 31 ( 3 ): 282 ‑ 290 .
孙益哲 . 季节性冻土场地地震动力反应特性研究 [D]. 长春 : 吉林建筑大学 , 2020 .
Sun Y Z . Study on seismic dynamic response characteristics of seasonal frozen soil site [D]. Changchun : Jilin Jianzhu University . 2020 . (in Chinese)
徐学燕 , 徐春华 , 李晓稚 . 冻土场地地震加速度反应谱研究 [J]. 岩土工程学报 , 2003 , 25 ( 6 ): 680 ‑ 683 .
Xu X Y , Xu C H , Li X Z . Research on earthquake acceleration response spectrum of frozen soil ground [J]. Chinese Journal of Geotechnical Engineering , 2003 , 25 ( 6 ): 680 ‑ 683 . (in Chinese)
陈卓识 . 季冻区场地地震响应规律初探 [D]. 哈尔滨 : 中国地震局工程力学研究所 , 2012 .
Chen Z S . A preliminary study on the law of earthquake ground response in the seasonal frozen regions [D]. Harbin : Institute of Engineering Mechanic, China Earthquake Administration , 2012 . (in Chinese)
师黎静 , 陈盛扬 , 黎明 . 哈尔滨季节性冻土场地特征参数研究 [J]. 岩石力学与工程学报 , 2019 , 38 ( 5 ): 1053 ‑ 1063 .
Shi L J , Chen S Y , Li M . Research on the characteristic parameters of Harbin seasonal frozen soils [J]. Chinese Journal of Rock Mechanics and Engineering , 2019 , 38 ( 5 ): 1053 ‑ 1063 . (in Chinese)
Miao Y , Shi Y , Zhuang H Y , et al . Influence of seasonal frozen soil on near‑surface shear wave velocity in Eastern Hokkaido, Japan [J]. Geophysical Research Letters , 2019 , 46 ( 16 ): 9497 ‑ 9508 .
Xu G , Yang Z , Dutta U , et al . Seasonally frozen soil effects on the seismic site response [J]. Journal of Cold Regions Engineering , 2011 , 25 ( 2 ): 53 ‑ 70 .
齐吉琳 , 马巍 , 孙崇绍 , 等 . 张掖地区季节冻土场地上的地震动效应 [J]. 岩石力学与工程学报 , 2005 , 24 ( 12 ): 2082 ‑ 2088 .
Qi J L , Ma W , Sun C S , et al . Seismic response analysis of seasonally frozen ground of Zhangye area [J]. Chinese Journal of Rock Mechanics and Engineering , 2005 , 24 ( 12 ): 2082 ‑ 2088 . (in Chinese)
Varghese R M , Latha G M . Shaking table tests to investigate the influence of various factors on the liquefaction resistance of sands [J]. Natural Hazards , 2014 , 73 ( 3 ): 1337 ‑ 1351 .
Toyota H , Towhata I , Imamura S , et al . Shaking table tests on flow dynamics in liquefied slope [J]. Soils and Foundations , 2004 , 44 ( 5 ): 67 ‑ 84 .
吕西林 , 任红梅 , 李培振 , 等 . 液化场地自由场体系的数值分析及振动台试验验证 [J]. 岩石力学与工程学报 , 2009 , 28 ( 增2 ): 4046 ‑ 4053 .
Lyu X L , Ren H M , Li P Z , et al . Numerical analysis of free field system in liquefiable site and validation of shaking table tests [J]. Chinese Journal of Rock Mechanics and Engineering , 2009 , 28 ( Sup2 ): 4046 ‑ 4053 . (in Chinese)
徐学燕 , 仲丛利 , 陈亚明 , 等 . 冻土的动力特性研究及其参数确定 [J]. 岩土工程学报 , 1998 , 20 ( 5 ): 77 ‑ 81 .
Xu X Y , Zhong C L , Chen Y M , et al . Research on dynamic characters of frozen soil and determination of its parameters [J]. Chinese Journal of Geotechnical Engineering , 1998 , 20 ( 5 ): 77 ‑ 81 . (in Chinese)
范增磊 . 非平稳地震动演变功率谱的估计与建模研究 [D]. 秦皇岛 : 燕山大学 , 2017 .
Fan Z L . Study on evolution of non‑stationary seismic ground motion estimation and modeling of power spectrum [D]. Qinhuangdao : Yanshan University , 2017 . (in Chinese)
阮志环 . 砂卵石土场地地震反应特征研究 [D]. 南宁 : 广西大学 , 2021 .
Ruan Z H . Study on seismic response characteristics of sand gravel soil site [D]. Nanning : Guangxi University , 2021 . (in Chinese)
Zeghal M , Elgamal A W , Tang H T , et al . Lotung downhole arrayⅡ: evaluation of soil nonlinear properties [J]. Journal of Geotechnical Engineering , 1995 , 121 ( 4 ): 363 ‑ 378 .
0
浏览量
0
下载量
1
CSCD
关联资源
相关文章
相关作者
相关机构
苏公网安备32010202012147号
