Study on seismic safety of high arch dam under new seismic design code

Dam & Safety ›› 2021, Vol. 0 ›› Issue (3): 1-.

Study on seismic safety of high arch dam under new seismic design code

WANG Jianxin, LIU Xijun, HE Mingjie and ZHANG Weidi#br#

PowerChina Huadong Engineering Co., Ltd.

Received:2021-03-15 Revised:2021-05-08 Online:2021-06-08 Published:2021-11-25

新抗震规范要求下高拱坝抗震安全研究

王建新，刘西军，何明杰，张伟狄

中国电建集团华东勘测设计研究院有限公司，浙江杭州，311122

作者简介:王建新（1982— ），男，山西大同人，高级工程师，主要从事水工结构设计工作。

Abstract

Abstract: The seismic condition at Baihetan site is complicated. According to the verified ground motion parameters in 2016, the peak ground acceleration with the return period of 4 950 years, i.e. 2% probability of exceedance in 100 years is 451 gal. According to NB 35047-2015 Code for Seismic Design of Hydraulic Structures in Hydropower Project and GB 18306-2015 Seismic Ground Motion Parameters Zonation Map of China, the seismic safety of Baihetan high arch dam is studied based on the results of the modified seismic safety assessment, which mainly includes seismic safety analysis of project site, dynamic characteristics and response of dam, sliding stability of key wedges of dam abutment and dynamic response of arch dam bearing overload seismic load.

Key words: new seismic code, high arch dam, seismic safety, Baihetan hydropower station

摘要： 白鹤滩水电站区域构造稳定性较差，2016年的设计地震动参数复核结果表明，场址100年超越概率2%相应基岩水平地震动峰值加速度为451 gal。根据NB 35047-2015《水电工程水工建筑物抗震设计规范》、GB18306-2015《中国地震动参数区划图》以及地震安全评价结果，基于复核后的地震动参数，对高289 m的白鹤滩拱坝抗震安全进行研究，主要内容包括工程场地地震安全性分析、拱坝动力特性和地震反应、坝肩关键块体的整体抗滑稳定性、超载地震作用下拱坝动力反应等。

关键词: 新规范, 高拱坝, 抗震安全, 白鹤滩水电站

CLC Number:

TV642.4

WANG Jianxin, LIU Xijun, HE Mingjie and ZHANG Weidi. Study on seismic safety of high arch dam under new seismic design code[J]. Dam & Safety, 2021, 0(3): 1-.

王建新, 刘西军, 何明杰, 张伟狄. 新抗震规范要求下高拱坝抗震安全研究[J]. 大坝与安全, 2021, 0(3): 1-.

[1]	JIANG Ming, ZHANG Weidi and WANG Jianxin. Research and application of consolidation grouting to dam foundation of Baihetan hydropower station#br# [J]. Dam & Safety, 2021, 0(3): 6-.
[2]	WANG Yi, PENG Yu and WANG Jianxin. Structural design and 3D finite element analysis of surface orifices of Baihetan arch dam [J]. Dam & Safety, 2021, 0(3): 16-.
[3]	SONG Gangyun, CHEN Hao and DU Qingpin. Overview of transportation of major parts for Baihetan hydropower station [J]. Dam & Safety, 2021, 0(3): 26-.
[4]	HUANG Lei, WANG Yongming, ZHANG Hua and WU Zhi. Analysis on bearing capacity of pile foundation in left bank cable crane foundation of Baihetan hydropower station [J]. Dam & Safety, 2020, 0(5): 31-.
[5]	GAO Junfeng. Discussion on application of low-heat cement concrete in Baihetan hydropower station [J]. Dam & Safety, 2020, 0(4): 54-.
[6]	SONG Gangyun, LI Shengbing, QIAN Zhenglin, FANG Jie and SHI Shoujin. Installation of 1 300 t bridge crane of Baihetan hydropower station [J]. Dam & Safety, 2020, 0(1): 58-.
[7]	ZHU Liang, SU Jin-peng and XU Xu-min. Analysis of temperature control cost for arch dam of Baihetan hydropower station under construction [J]. Dam & Safety, 2018, 0(4): 18-21.
[8]	ZHANG Guang- fei and SHI Wei- da. Calculation and analysis on construction ventilation cost of underground caverns in Baihetan hydropower station [J]. Dam & Safety, 2018, 0(4): 22-24.
[9]	FU Chun-jiang, ZHANG Xiu-li, SHEN Hai-yao, LI Zhong-yuan, YANG Ge, LIU Xiang and FENG Yong-xiang. Research and application of online safety evaluation for super high arch dam [J]. Dam & Safety, 2018, 0(2): 1-.
[10]	GU Jia-jun, XIA Shi-fa, LI Xiu-lin and LI Rong. Research on key technologies for thermal stress calculation and temperature control for a high arch dam in Xinjiang [J]. Dam & Safety, 2018, 0(1): 52-.
[11]	HU Lei, LI Bo and TIAN Ya-ling. Analysis on seepage monitoring data of Xiluodu hydropower dam during initial impoundment and operation [J]. dam, 2017, 0(4): 30-.
[12]	TIAN Qing-rui, FANG De-xiang and REN Cai. Analysis on vertical water temperature and its influencing factors in front of Zhushou reservoir dam in Baihetan basin [J]. dam, 2016, 0(6): 40-.
[13]	ZHANG Hua, WU Zhi and WANG Yong-ming. Structural design of cable cranes foundations for Baihetan hydropower station [J]. dam, 2016, 0(4): 16-.
[14]	DUAN Shao-hui, ZHANG Chen and HU Shu-hong. Research and application of temperature monitoring and control system for concrete construction of arch dam [J]. dam, 2015, 0(5): 8-.
[15]	CHEN Chen, CHEN Ping-long and WANG Wen-fen. Application of limit equilibrium method in slope stability analysis of Jinping Ⅰhigh arch dam based on 3-D multi-grid method [J]. dam, 2015, 0(4): 47-.