[1]徐建元,蒋 素,李 平,等.汶川地震北川老县城地震动研究[J].华南地震,2026,46(04):55-63.[doi:10.13512/j.hndz.2026.04.25]
　XU Jianyuan,JIANG Su,LI Ping,et al.Study on Ground Motion in the Old Beichuan County Town During the Wenchuan Earthquake[J].,2026,46(04):55-63.[doi:10.13512/j.hndz.2026.04.25]
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汶川地震北川老县城地震动研究()

华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
46
期数:
2026年04期
页码:
55-63
栏目:
土木工程防震减灾
出版日期:
2026-07-09

文章信息/Info

Title:
Study on Ground Motion in the Old Beichuan County Town During the Wenchuan Earthquake
文章编号:
1001-8662（2026）04-0055-09
作者:
徐建元1; 蒋 素2; 李 平3; 田 宇4; 韦梓春1; 戚天广5
1.江苏省规划设计集团有限公司市政规划与工程设计院，南京 210019;2.扬子江药业集团南京海陵药业有限公司，南京 210049;3.防灾科技学院，河北 三河 065201;4.黑龙江省地震局，哈尔滨 150090;5.徐州市公安局贾汪公安分局茱萸山派出所，江苏 徐州 221000
Author(s):
XU Jianyuan1; JIANG Su2; LI Ping3; TIAN Yu4; WEI Zichun1; QI Tianguang5
1.Municipal Planning and Engineering Design Institute ， Jiangsu Provincial Planning and Design Group Co. ， Ltd.，Nanjing 210019，China;2.Nanjing Hailing Pharmaceutical Co.，Ltd.，Yangzijiang Pharmaceutical Group Co.， Ltd.， Nanjing 210049， China;3.Institute of Disaster Prevention ， Sanhe 065201， China;4.Heilongjiang Earthquake Agency ， Harbin 150090， China;5.Zhuyushan Police Station ， Xuzhou Municipal Public Security Bureau ， Jiawang Subbureau ， Xuzhou 221000， China
关键词:
汶川地震; 北川老县城; 随机有限断层法; 土层地震反应分析
Keywords:
Wenchuan earthquake; Old Beichuan County Town; Finite fault method; Seismic response analysis of soils
分类号:
P315
DOI:
10.13512/j.hndz.2026.04.25
文献标志码:
A
摘要:
研究采用随机有限断层法模拟汶川地震主震基岩地震动场，依据北川老县城岩土勘察报告，构建典型土层地震反应分析模型，并运用土层地震反应分析程序计算其地表地震动，通过加速度反应谱标定的方法对比当时北川老县城的抗震设防标准。研究结果表明：模拟地震动场的能量分布与烈度图具有较好的一致性，茂县地办和郫县走石山两个基岩台站的模拟记录与实测记录吻合较好；北川老县城基岩地震动大致在900~950gal之间，其地表地震动范围在1000~1500gal之间；将规准得到的标定谱与北川老县城抗震设防水准进行对比分析，验证了地震动的基本合理性。研究结论可为北川老县城地区的震害研究和抗震设防提供参考依据。
Abstract:
In this paper， the random finite fault method was used to simulate the bedrock ground motion field of the main shock of Wenchuan earthquake. Based on the geotechnical investigation report of Old Beichuan County Town， the seismic response analysis model of typical soil layer was constructed， and the surface ground motion was calculated by using the soil seismic response analysis program. The seismic fortification standard of Old Beichuan County Town was compared by the method of acceleration response spectrum calibration. The results show that the energy distribution of the simulated ground motion field has good consistency with the intensity map，and the simulated records of the two bedrock stations in Maoxian County and Zoushi Mountain in Pixian County match well with the measured records. The bedrock ground motion of Old Beichuan County Town is roughly in the range of 900-950 gal， and its surface ground motion range is in the range of 1000-1500 gal. The calibration spectrum obtained by the standard is compared with the seismic fortification level of Old Beichuan County Town， verifying the basic rationality of the ground motion simulation. The research conclusions can provide reference for seismic hazard research and seismic fortification in Old Beichuan County Town.

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备注/Memo

备注/Memo:
收稿日期：2025-09-02
基金项目：河北省高等学校科学技术研究计划项目（ZD2022166）；地震科技星火计划项目（XH20084）联合资助。
作者简介：徐建元(1997-)，男，助理工程师，主要从事防灾减灾、韧性城市等工作。E-mail：18846916327@163.com
更新日期/Last Update: 2026-07-20