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积石山6.2级地震供水系统震害调查与分析

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2023 年12 月18 日甘肃省积石山县发生6.2 级地震,造成当地各类工程结构发生不同程度的破坏,导致了重大人员伤亡.基于调查资料,总结了供水系统中的建(构)筑物、设施设备和供水管网的震害特征.研究表明:经过正规抗震设计和施工的建筑物震害较轻,表明我国抗震设计规范发挥了积极作用;低烈度区水厂设施设备因地震破坏而停运,个别设备漏油污染了水质,进而导致了供水能力下降;位于高烈度区的供水管网在老旧钢质管道连接处发生多处破坏,出现了水量不足、水压降低的情况,给居民生活造成了不利影响.最后,从采取设备减隔震技术、管道和设备接口采用柔性连接、选择供水管道材质、全面开展管网漏损排查等四个方面提出了恢复重建的建议.
Seismic damage investigation and analysis of water supply system in Ms6.2 Jishishan earthquake
The Ms6.2 magnitude earthquake that struck Jishishan County,Gansu Province,on December 18,2023,caused varying levels of damage to different engineering structures in the region,resulting in significant casualties.In order to study the impact on the water supply system,based on the investigation data,the seismic damage characteristics of buildings,structures,facilities,equipments,and water supply pipeline networks were summarized.The study revealed that structures designed and constructed to be earthquake-resistant experienced relatively minor damage,highlighting the effectiveness of China's earthquake-resistant design standards.The water plant located in the low-intensity zone was shut down as a result of the earthquake,with oil leakage from certain equipment leading to water contamination and a reduction in water supply capacity.Additionally,the water supply pipeline network in the high-intensity zone sustained multiple damages at the connections of the old steel pipelines,resulting in water shortage and reduced water pressure that adversely impacted residents'lives.Finally,four recommendations for recovery and rebuilding were proposed,including the adoption of seismic isolation techniques for equipments,the use of flexible connections for pipe-equipment interfaces,the selection of water supply pipe materials,and the conduct of a comprehensive leakage survey of the pipe network.

Jishishan earthquakewater supply systemseismic damage investigationfunction failurewater supply pipelineseismic damage rate

闫培雷、郭恩栋、余世舟、孙得璋、于天洋

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中国地震局工程力学研究所 地震工程与工程振动重点实验室,黑龙江 哈尔滨 150080

地震灾害防治应急管理部重点实验室,黑龙江 哈尔滨 150080

广东省地震局,广东 广州 510070

广东省震灾风险防治中心,广东 广州 510070

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积石山地震 供水系统 震害调查 功能失效 供水管道 震害率

中国地震局工程力学研究所基本科研业务费专项中国地震局工程力学研究所基本科研业务费专项黑龙江省自然科学基金联合引导项目

2021B062021C05LH2021E122

2024

10.13197/j.eeed.2024.0322

地震工程与工程振动
中国力学学会 中国地震局工程力学研究所

地震工程与工程振动

CSTPCD北大核心
影响因子：0.658
ISSN：1000-1301
年,卷(期)：2024.44(3)
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