[1]张 鸥,魏匡民.高地震烈度区高沥青混凝土心墙砂砾石坝抗震工程措施有效性研究[J].华南地震,2026,46(01):77-87.[doi:10.13512/j.hndz.2026.01.09]
 ZHANG Ou,WEI Kuangmin.Research on the Effectiveness of Seismic Engineering Measures for High Asphalt Concrete Core Sand-Gravel Dams in High Seismic Intensity Area[J].,2026,46(01):77-87.[doi:10.13512/j.hndz.2026.01.09]
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高地震烈度区高沥青混凝土心墙砂砾石坝抗震工程措施有效性研究()

华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
46
期数:
2026年01期
页码:
77-87
栏目:
土木工程防震减灾
出版日期:
2026-01-31

文章信息/Info

Title:
Research on the Effectiveness of Seismic Engineering Measures for High Asphalt Concrete Core Sand-Gravel Dams in High Seismic Intensity Area
文章编号:
1001-8662(2026)01-0077-11
作者:
张 鸥1魏匡民2
1.陕西农林职业技术大学,陕西 杨凌,712100;2.南京水利科学研究院,南京 210000
Author(s):
ZHANG Ou1WEI Kuangmin2
1.Shaanxi A&F Technology University , Yangling 712100, China;2.Nanjing Hydraulic Research Institute , Nanjing 210000, China
关键词:
高地震烈度沥青混凝土心墙坝有限元抗震工程措施极限抗震能力
Keywords:
High seismic intensityAsphalt concrete core wall damFinite elementSeismic engineering mea?suresUltimate seismic capacity
分类号:
TV312
DOI:
10.13512/j.hndz.2026.01.09
文献标志码:
A
摘要:
主要针对我国西部高地震烈度区某100m级沥青混凝土心墙砂砾石坝,通过三维非线性有限元法探讨其静动力特性。计算结果显示,动力状态下未加固时大坝坝体反应加速度绝对值较大,且校核地震工况上游坝坡存在失稳风险。基于以上结论,拟对坝顶区域采取土工格栅加固措施,并分别考虑坝坡稳定、地震永久变形、沥青心墙安全性等方面评价该工程措施的有效性及加固后大坝的极限抗震能力。研究结果显示,采取土工格栅加固措施后,大坝的抗震安全性得到提高,加固后大坝的极限抗震能力在0.70~0.75g左右,相比校核地震645gal具有一定的安全裕度。
Abstract:
This study focuses on a 100-meter-high asphalt concrete core sand-gravel dam located in a high seismic intensity zone in western China. By employing a three-dimensional nonlinear finite element method,the static and dynamic characteristics of the dam were analyzed. The computational results indicate that the absolute values of the dam’s acceleration response under dynamic conditions without reinforcement are notably large,and the upstream dam slope faces instability risks under the checking seismic condition(645 gal). Based on these findings,geogrid reinforcement measures are proposed for the dam crest area. The effectiveness of these engineering measures and the ultimate seismic capacity of the reinforced dam are evaluated from perspectives including slope stability,seis mic permanent deformation,and safety of the asphalt core. The results demonstrate that the geogrid reinforcement enhances the dam’s seismic safety, with the ultimate seismic capacity reaching 0.70-0.75 g, showing a safety margin compared to the checking seismic intensity of 645 gal.

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备注/Memo

备注/Memo:
收稿日期:2025-05-23
基金项目:国家重点研发计划项目(2024YFC3214900);国家自然科学基金资助项目(U21A20158);陕西农林职业技术大学自然科学研究基金项目(ZKZ23-06)联合资助。
作者简介:张鸥(1986-),女,副教授,主要从事水工结构工程专业方面的教学与研究工作。E-mail:774914781@qq.com
更新日期/Last Update: 2026-02-03