|本期目录/Table of Contents|

[1]安永林,蔡海滨,岳健,等.高铁对邻近矿区主井的动力安全影响分析[J].中国安全生产科学技术,2015,11(4):40-46.[doi:10.11731/j.issn.1673-193X.2015.04.006]
 AN Yong-lin,CAI Hai-bin,YUE Jian,et al.Analysis on influence of high-speed rail on main shaft of neighboring mine[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(4):40-46.[doi:10.11731/j.issn.1673-193X.2015.04.006]
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高铁对邻近矿区主井的动力安全影响分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年4期
页码:
40-46
栏目:
学术论著
出版日期:
2015-04-30

文章信息/Info

Title:
Analysis on influence of high-speed rail on main shaft of neighboring mine
作者:
安永林1蔡海滨2岳健1张彩月2
(1. 湖南科技大学 土木工程学院,湖南 湘潭 411201;2. 安徽理工大学 土木建筑学院,安徽 淮南 232001)
Author(s):
AN Yong-lin 1 CAI Hai-bin 2 YUE Jian1 ZHANG Cai-yue2
(1. School of Civil Engineering, Hunan University of Science and Technology, Xiangtan Hunan 411201, China; 2. School of Civil Engineering and Architecture, Anhui University of Science & Technology, Huainan Anhui 232001, China)
关键词:
隧道工程列车振动竖井竖井回填动力影响
Keywords:
tunnel engineering train vibrating vertical shaft backfilling dynamic influence
分类号:
X936
DOI:
10.11731/j.issn.1673-193X.2015.04.006
文献标志码:
A
摘要:
为了获得高铁对邻近矿区主井的动力影响,并为回填提供依据,根据山体地形及合福高铁与邻近矿区主井的情况,建立了有无回填的两种工况模型,其中阻尼为Rayleigh模式,边界采用粘滞人工边界,列车看作移动荷载,用激振力函数来模拟。进而分析高铁荷载的频谱特性;对比竖井在有无回填下的自振频率和振型特性,研究竖井衬砌在有无回填下的位移、应力响应。结果表明:竖井回填的自振频率较竖井不回填下的大,两者前3阶振型是一样的,而在第4、5、6阶的振型不一样;竖井回填对降低衬砌的水平位移、水平应力和剪应力效果最明显;竖井衬砌受列车动载影响较大是竖井井口下方180m以内的范围。鉴于竖井下方深处存在围岩较好的约束作用,所以建议竖井回填可以不全部回填,只回填上部180m范围。
Abstract:
According to the mountain shape and the conditions of vertical shaft adjacent to the He-fu Passenger line, two simulation models with and without backfilling were built to study the dynamic influence of high-speed rail on the adjacent vertical shaft. The train was considered as a moving load. Rayleigh damp and sticky artificial boundaries were adopted. The spectral characteristics of high-speed rail loading were analyzed by simulation of excitation function. The natural vibration frequency and vibration mode characteristics of the vertical shaft with and without backfilling were compared, and the response of displacement and stress of the vertical shaft lining were also studied. The results showed that the natural vibration frequency of the shaft with backfilling is higher than that without backfilling. The first, second and third mode shapes are the same, but the fourth, fifth and sixth mode are different. The reduction of horizontal displacement, horizontal stress and shear stress are the most obvious with backfilling. The influence of the railway dynamic load on the shaft lining is larger in the range from the mouth to the 180 m depth below the surface. In view of the better restriction effect of the deep surrounding rock on the shaft, it was suggested that the vertical shaft can be backfilled not all, but just the upper 180m range of the shaft.

参考文献/References:

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备注/Memo

备注/Memo:
湖南省自然科学基金资助项目(14JJ4046,10JJ3006);国家自然科学基金资助项目(51408216,41272324,41302226,51308209)
更新日期/Last Update: 2015-04-30