滑坡涌浪对桩柱冲击压力分布特征及计算方法

doi:10.16265/j.cnki.issn1003-3033.2017.02.021

中国安全科学学报 ›› 2017, Vol. 27 ›› Issue (2): 115-120.doi: 10.16265/j.cnki.issn1003-3033.2017.02.021

滑坡涌浪对桩柱冲击压力分布特征及计算方法

白薇¹, 程永舟^1,2 教授, 黄筱云^1,2

1 长沙理工大学水利工程学院,湖南长沙 410004
2 水沙科学与水灾害防治湖南省重点实验室,湖南长沙 410004

收稿日期:2016-11-09 修回日期:2016-12-26 出版日期:2017-02-28 发布日期:2020-11-22
通讯作者: 程永舟(1974—),男,湖北广水人,博士,教授,主要从事水利工程方面的教学和研究。E-mail: chengyongzhou@163.com。
作者简介:白薇 (1990—),女,湖南岳阳人,硕士研究生,主要研究方向为波浪、水流与建筑物相互作用。E-mail:463259947@qq.com。
基金资助:
国家自然科学基金资助(51679015);湖南省自然科学基金资助(2015JJ2006);湖南省水利科技项目(湘水科计[2015]13-20)。

Distribution characteristics and calculation methods of impact force brought by landslide surge on pile structure

BAI Wei¹, CHENG Yongzhou^1,2, HUANG Xiaoyun^1,2

1 School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha Hunan 410004, China
2 Key Laboratory of Water-Sediment Science and Water Disaster Prevention of Hunan Province, Changsha Hunan 410004, China

Received:2016-11-09 Revised:2016-12-26 Online:2017-02-28 Published:2020-11-22

摘要/Abstract

摘要： 桩柱是广泛用于桥梁、码头等涉水建筑物的一种结构。滑坡产生的涌浪作用在桩柱的冲击力对整个涉水建筑物的稳定性及安全性有重要影响。通过物理模型试验,研究滑坡涌浪作用下,桩柱所受冲击力的特征。结合相关数据,提出滑坡涌浪作用下桩柱处动水压强极值的计算公式。试验结果表明,体积涌浪传播至桩柱时,对桩柱产生最大动水压强的极值沿桩柱轴向等值分布,与孤立波对桩柱作用力分布规律类似;而后冲击涌浪产生第二极值,其分布随水深而递减,规律与规则波类似。

关键词: 滑坡涌浪, 桩柱, 冲击力, 动水压强, 计算公式

Abstract: The pile is a kind of structure widely used in aquatic buildings such as bridge and dock. The impact force on the pile brought by landslide surge is crucial to the stability and safety of the whole aquatic building. On the basis of physical model experiments, characteristics of impact force brought by landslide surge on the pile were studied. Based on relevant data, a formula was worked out for calculating the extreme value of dynamic hydraulic pressure on the pile. The experimental results show that the maximum hydrodynamic pressure emerges when the volume surge spreads to pile, and there is a roughly negative correlation between its extreme value and the depth of the measuring point, which is similar to the solitary wave,and that the impact surge produces the second hydrodynamic pressure, and it decreases with the increase of water depth, which is similar to the regular wave.

Key words: landslide surge, pile, impact force, hydrodynamic pressure, calculating formula

中图分类号:

X959

白薇, 程永舟, 黄筱云. 滑坡涌浪对桩柱冲击压力分布特征及计算方法[J]. 中国安全科学学报, 2017, 27(2): 115-120.

BAI Wei , CHENG Yongzhou , HUANG Xiaoyun. Distribution characteristics and calculation methods of impact force brought by landslide surge on pile structure[J]. China Safety Science Journal, 2017, 27(2): 115-120.

参考文献

[1] 王兰生, 杨立铮, 李天斌, 等. 四川岷江叠溪较场地震滑坡及环境保护[J]. 地质灾害与环境保护, 2000, 11(3): 195-199.
WANG Lansheng, YANG Lizheng, LI Tianbin, et al. Evolution mechanism of Jiaochang earthquake landslide on Minriver and its controlling[J]. Journal of Geological Hazards and Environment Preservation, 2000, 11(3): 195-199.
[2] 钟立勋. 意大利瓦伊昂水库滑坡事件的启示[J]. 中国地质灾害与防治学报, 1993, 5(2): 77-84.
ZHONG Lixun. Enlightenments from the accident of Vaiont landslide in Italy[J]. The Chinese Journal of Geological Hazard and Control, 1993, 5(2): 77-84.
[3] SL165—2010, 滑坡涌浪模拟技术规程[S].
SL165-2010, Technical specification for simulation of landslide surge[S].
[4] FRITZ H M, HAGER W H, MINOR H E. Near field characteristics of landslide generated impulse waves[J]. Journal of Waterway, Port, Coastal, and Ocean Engineering, 2004, 130(6): 287-302.
[5] EDWARD N. Water waves generated by landslides[J]. Journal of the Waterways, Harbors and Coastal Engineering Division, 1970, 96(4): 835-855.
[6] WIECZOREK G F, JAKOB M, MOTYKA R J, et al. Preliminary assessment of landslide wave hazards:tidal inlet[R]. Glacier Bay National Park,2003.
[7] ATAIE A B, NIK K A. Impulsive waves caused by subaerial land-slides[J]. Journal of the Environ Fluid Mechanics, 2008, 8(7): 263-280.
[8] 肖莉丽, 殷坤龙, 王佳佳, 等. 基于物理模拟试验的库岸滑坡冲击涌浪[J]. 中南大学学报:自然科学版, 2014, 45(5): 1 618-1 626.
XIAO Lili, YIN Kunlong, WANG Jiajia, et al. Impulse wave generated by reservoir landslides based on physical model experiments[J]. Journal of Central South University:Science and Technology, 2014, 45(5):1 618-1 626.
[9] 温树杰, 李红卫, 傅鹤林. 地震作用下三维边坡最小势能稳定性分析[J]. 中国安全科学学报, 2016, 26(4): 114-118.
WEN Shujie, LI Hongwei, FU Helin. Analysis of stability for three-dimensional slope during earthquake based on minimum potential energy principle[J]. ChinaSafety Science Journal, 2016, 26(4): 114-118.
[10] 赵兰浩, 侯世超, 毛佳. 库区滑坡涌浪数值模拟方法研究进展[J]. 水利水电科技进展, 2016, 36(2): 79-86.
ZHAO Lanhao, HOU Shichao, MAO Jia. Review of numerical simulation of landslides and surges in reservoir districts[J]. Advences in Science and Technology of Water Resources, 2016, 36(2): 79-86.
[11] 王平义, 韩林峰, 喻涛, 等. 滑坡涌浪对高桩码头船舶撞击力的影响[J]. 哈尔滨工程大学学报, 2016, 37(6): 878-884.
WANG Pingyi, HAN Linfeng, YU Tao, et al. Effects of landslide generated impulse waves on ship impact force for pile wharf[J]. Journal of Harbin Engineering University, 2016, 37(6): 878-884.
[12] 殷坤龙, 杜娟, 汪洋. 清江水布垭库区大堰塘滑坡涌浪分析[J]. 岩土力学, 2008, 29(12):3 266-3 270.
YIN Kunlong, DU Juan, WANG Yang. Analysis of surge triggered by Dayantang landslide in Shuibuya reservoir of Qingjiang river[J].Rock and Soil Mechanics, 2008, 29(12):3 266-3 270.
[13] JTJ213—1998, 海港水文规范[S].
JTJ213-1998, Code for sea port hydrology[S].
[14] 周显初, 李小佩, 赵世俊, 等. 孤立波对铅直坝体的作用力[J]. 水利学报, 1985, 7(3): 58-63.
ZHOU Xianchu, LI Xiaopei, ZHAO Shijun, et al. The force of solitary wave on vertical dam[J]. Journal of Hydraulic Engineering, 1985, 7(3):58-63.
[15] 黄锦林.库岸滑坡涌浪对坝体影响研究[D]. 天津: 天津大学, 2011.
HUANG Jinlin. Study on the surge of reservoir bank landslide and it's effect on dam body[D]. Tianjin: Tianjin University, 2011.

滑坡涌浪对桩柱冲击压力分布特征及计算方法

Distribution characteristics and calculation methods of impact force brought by landslide surge on pile structure

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

本文评价

[1]	李成兵，徐进，邹祥莉. 减速垄几何参数对车及路冲击性的影响[J]. 中国安全科学学报, 2014, 24(1): 119-.
[2]	庞梦雨. 人身伤亡赔偿计算方法及理论依据新探[J]. 中国安全科学学报, 2005, 15(7): 11-.