重载铁路改良土和A组填料过渡段的动力特性

doi:10.13229/j.cnki.jdxbgxb20200648

吉林大学学报(工学版) ›› 2021, Vol. 51 ›› Issue (6): 2128-2136.doi: 10.13229/j.cnki.jdxbgxb20200648

• 交通运输工程·土木工程 • 上一篇

重载铁路改良土和A组填料过渡段的动力特性

商拥辉^1,²(),徐林荣^1,³(),刘维正¹,蔡雨¹

^1.中南大学土木工程学院，长沙 410075
^2.黄淮学院建筑工程学院，河南驻马店 463000
^3.中南大学高速铁路建造技术国家工程实验室，长沙 410075

收稿日期:2020-08-24 出版日期:2021-11-01 发布日期:2021-11-15
通讯作者: 徐林荣 E-mail:syhsrsci@sina.com;Irxu@csu.edu.com
作者简介:商拥辉（1985-），男，讲师，博士. 研究方向：特殊土路基动力特性. E-mail：syhsrsci@sina.com
基金资助:
国家自然科学基金项目(51778634);中国博士后科学基金项目(2020M682589);河南省科技攻关重点研发项目(202102310264);河南省教育厅重点研发项目(20B58003)

Dynamic features of transition section between improved soil and A⁃filled of heavy⁃haul railway

Yong-hui SHANG^1,²(),Lin-rong XU^1,³(),Wei-zheng LIU¹,Yu CAI¹

^1.School of Civil Engineering，Central South University，Changsha 410075，China
^2.Institute of Architecture and Engineering，Huanghuai University，Zhumadian 463000，China
^3.National Engineering Laboratory for High Speed Railway Construction，Central South University，Changsha 410075，China

Received:2020-08-24 Online:2021-11-01 Published:2021-11-15
Contact: Lin-rong XU E-mail:syhsrsci@sina.com;Irxu@csu.edu.com

摘要/Abstract

摘要：

为分析不同类别填料相邻填筑特殊过渡段的动力特性，依托浩吉（浩勒报吉-吉安）重载铁路工程，采用现场激振试验与数值模拟相结合的方法，揭示了改良膨胀土和A组填料过渡段横、纵向路基的动力特性差异。结果表明：同荷载条件下，A组填料路基横断面动力响应大于改良膨胀土，具体表现为：动应力的增幅达到5%~8%，加速度的增幅达到40%~50%；当速度为120 km/h，轴重为25~30 t的重载列车运行时，过渡段交接处纵向路面动力响应存在0.8%~13%的加剧现象，且一定程度上受行车方向影响。本文研究成果可为重载铁路填料过渡段的精细化建设养修提供理论依据。

关键词: 道路与铁道工程, 填料过渡段, 动力特性, 激振试验, 数值模拟

Abstract:

In order to analyze the dynamic features of the special transition section of different types of filling adjacent to fill, considering the background of Haoji (Haole Baoji-Jian) heavy-haul railway engineering, the method, combining the field excitation test and numerical simulation, was used to reveal the difference of dynamic features between transverse and longitudinal of the transition section subgrade between improved soil and group A filler. The results show that under the same load condition, the dynamic response of the cross section of the A-filled subgrade is greater than that of the modified expansive soil, which is specifically manifested by the increase of dynamic stress by 5~8% and acceleration by 40~50%. When the trains with a speed of 120 km/h and an axle load of 25~30 t, the dynamic response of the longitudinal road surface at the junction of the transition section increases by 0.8~13%, and to certain extent it is affected by the direction of the vehicle. The research results can provide a theoretical basis for the fine construction and maintenance of the filling transition section of heavy-haul railway.

Key words: highway & railway engineering, filling transition section, dynamic features, excitation test, numerical simulation

中图分类号:

U231.1

商拥辉,徐林荣,刘维正,蔡雨. 重载铁路改良土和A组填料过渡段的动力特性[J]. 吉林大学学报(工学版), 2021, 51(6): 2128-2136.

Yong-hui SHANG,Lin-rong XU,Wei-zheng LIU,Yu CAI. Dynamic features of transition section between improved soil and A⁃filled of heavy⁃haul railway[J]. Journal of Jilin University(Engineering and Technology Edition), 2021, 51(6): 2128-2136.

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参考文献 20

1	肖世伟, 雷长顺. 重载铁路路基荷载特征和路基动力响应分析[J]. 铁道工程学报, 2014, 31(4): 51-56.
	Xiao Shi-wei, Lei Chang-shun. Loading characteristics and dynamic response analysis of subgrade for heavy-haul railway[J]. Journal of Railway Engineering Society, 2014, 31(4):51-56.
2	冷伍明, 梅慧浩, 聂如松, 等.重载铁路路基足尺模型试验研究[J]. 振动与冲击, 2018, 37(4):1-6, 18.
	Leng Wu-ming, Mei Hui-hao, Nie Ru-song, et al. Full-scale model test of heavy-haul railway subgrade[J]. Journal of Vibration and Shock, 2018, 37(4):1-6, 18.
3	李鹏. 重载铁路路基动力响应与长期累积变形特性[D].哈尔滨: 哈尔滨工业大学土木工程学院, 2018.
	Li Peng. Dynamic response and long-term cumulative deformation characteristics of heavy haul railway subgrade[D]. Harbin: School of Civil Engineering, Harbin Institute of Technology, 2018.
4	商拥辉, 徐林荣, 蔡雨, 等.重载铁路循环动载下水泥改良膨胀土路基动力特性[J]. 中国铁道科学, 2019, 40(6):19-29.
	Shang Yong-hui, Xu Lin-rong, Cai Yu, et al. Dynamic deformation of cement-stabilized expansive soil subgrade under cyclic dynamic load of heavy haul railway[J]. China Railway Science, 2019, 40(6):19-29.
5	Fryba L. History of winkler foundation[J]. Vehicle System Dynamics,2007, 24:7-12.
6	Kenney J T. Steady-state vibration of beam on elastic foundation for moving load[J]. Journal of Applied Mechanics, 1954, 21(4):359-364.
7	Matsuura A. Simulation for analyzing direct derailment limit of running vehicle on oscillating tracks[J]. Doboku Gakkai Ronbunshu, 1998,1998(591):19-28.
8	翟婉明, 赵春发, 夏禾, 等.高速铁路基础结构动态性能演变及服役安全的基础科学问题[J]. 中国科学:技术科学, 2014, 44(7):645-660.
	Zhai Wan-ming, Zhao Chun-fa, Xia He, et al. Basic scientific issues on dynamic performance evolution of the high-speed railway infrastructure and its service safety[J]. Science China: Technical, 2014, 44(7):645-660.
9	陈云敏, 边学成.高速铁路路基动力学研究进展[J]. 土木工程学报, 2018, 51(6):1-13.
	Chen Yun-min, Bian Xue-cheng. The review of high-speed railway track foundation dynamics[J]. China Civil Engineering Journal, 2018, 51(6):1-13.
10	Qiu Ming-ming, Yang Guo-lin, Shen Quan, et al. Dynamic behavior of new cutting subgrade structure of expensive soil under train loads coupling with service environment[J]. Journal of Central South University, 2017, 24(4):875-890.
11	吕文强, 罗强, 刘钢, 等.重载铁路路基基床结构分析及设计方法[J]. 铁道学报, 2016, 38(4):74-81.
	Lv Wen-qiang, Luo Qiang, Liu Gang, et al. Structural analysis and design method for subgrade bed of heavy-haul railway[J]. Journal of China Railway Society, 2016, 38(4):74-81.
12	韩博文, 冯怀平, 应志超, 等.振动荷载作用下浸水过程对重载铁路基床变形特性影响研究[J]. 振动与冲击, 2019, 38(1):221-228.
	Han Bo-wen, Feng Huai-ping, Ying Zhi-chao, et al. Study on influence of soaking process on deformation characteristics of heavy-haul railway subgrade under vibration load[J]. Journal of Vibration and Shock, 2019, 38(1):221-228.
13	刘晓红, 杨果林, 方薇. 高铁无碴轨道路堑基床换填厚度与动力稳定[J]. 岩石力学与工程学报, 2011, 30():3534-3538.
	Liu Xiao-hong, Yang Guo-lin, Fang Wei. Replacement thickness and dynamic stability of cutting bed under ballstless track of high-speed railway[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(Sup.2):3534-3538.
14	董亮, 赵成刚, 蔡德钩, 等.高速铁路无砟轨道路基动力特性数值模拟和试验研究[J]. 土木工程学报, 2008,41(10):81-86.
	Dong Liang, Zhao Cheng-gang, Cai De-gou, et al. Experiment validation of a numerical model for prediction of the dynamic response of ballastless of subgrade of high-speed railway[J]. China Civil Engineering Journal, 2008,41(10):81-86.
15	徐旸, 高亮, 蔡小培, 等.基于激光扫描法的铁路道砟级配对道床动力特性影响的离散元研究[J]. 振动与冲击, 2017, 36(5):127-133, 156.
	Xu Yang, Gao Liang, Cai Xiao-pei, et al. Influences of ballast gradation on railway bed dynamic characteristics based on laser scanning and discrete element method[J]. Journal of Vibration and Shock, 2017, 36(5):127-133, 156.
16	. 铁路线路设计规范[S].
17	Shang Yong-hui, Xu Lin-rong, Huang Ya-li, et al. Experimental study on the dynamic features of cement-stabilized expansive soil as subgrade filling of Heavy-haul railway[J]. Journal of Engineering Science and Technology Review, 2017, 10(6):136-145.
18	周葆春,孔令伟,郭爱国. 石灰改良膨胀土的应力-应变-强度特征与本构描述[J]. 岩土力学,2012,33(4):999-1005.
	Zhou Bao-chun, Kong Ling-wei, Guo Ai-guo. Stress-strain- strength behaviour and constitutive description of lime-treated expansive soil[J]. Rock and Soil Mechanics, 2012, 33(4):999-1005.
19	汪明武, 秦帅, 李健, 等.合肥石灰改良膨胀土的非饱和强度试验研究[J]. 岩石力学与工程学报, 2014, 33():4233-4238.
	Wang Ming-wu, Qin Shuai, Li Jian, et al. Strength of unsaturated lime-treated expansive clay in Hefei[J]. Chinese Journal of Rock Mechanics and Engineering, 2014, 33(Sup.2):4233-4238.
20	梅慧浩, 冷伍明, 聂如松, 等.粗粒土的动力行为特征及永久变形特性研究[J]. 华中科技大学学报:自然科学版, 2019, 47(9):113-119.
	Mei Hui-hao, Leng Wu-ming, Nie Ru-song, et al. Study on dynamic behavior and permanent deformation characteristics of coarse-grained soil[J]. Journal of Huazhong University of Science and Technology(Nature Science Edition), 2019, 47(9):113-119.

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指标类别	指标参数	天然土样	水泥掺量
指标类别	指标参数	天然土样	3%	4%	5%
胀缩特性	自由膨胀率	66	32	28	23
	有荷膨胀率（25 kPa）	6.8	0.1	0.06	<0
	有荷膨胀率（50 kPa）	6.7	<0	<0	<0
	膨胀力/kPa	129	14	10	1
	收缩系数	0.91	0.73	0.62	0.52
	缩限/%	10.2	10.2	11.9	11.2
强度指标	黏聚力/kPa	45	183	201	291
	内摩擦角Φ	21.4	24.6	33.2	35.5
	7 d饱和无侧限抗压强度/kPa	44	866	1018	1170
水稳系数	压实度0.90	0.18	0.81	0.84	0.83
水稳系数	压实度0.95	0.25	0.85	0.88	0.89

相关指标	天然土样	掺量3%		掺量4%		掺量5%
相关指标	天然土样	石灰	水泥	石灰	水泥	石灰	水泥
自由膨胀率	66	27	30	24	27	21	23
有荷膨胀率（25 kPa）	6.8	<0	0.1	<0	0.06	<0	<0
有荷膨胀率（50 kPa）	6.7	<0	<0	<0	<0	<0	<0
膨胀力/kPa	129	12	14	5	10	1	1

相关指标	天然土样	掺量3%		掺量4%		掺量5%
相关指标	天然土样	石灰	水泥	石灰	水泥	石灰	水泥
饱和无侧限强度/kPa	37	308	335	477	512	786	852
黏聚力C	42	124	139	189	204	231	244
内摩擦角Φ	20.6	24.6	27.6	30.2	31.8	37.5	41.8

填料类别	围压/kPa	临界动应力/kPa
填料类别	围压/kPa	范围区间	平均值
3%水泥改良土	15	151.2~185.7	168.45
	30	157.5~203.5	180.50
	60	182.3~233.1	207.70
5%水泥改良土	15	142.5~208.1	175.30
	30	148.3~233.5	190.90
	60	202.5~249.7	226.10
A组粗粒填料^［20］	15	100~125	112.5
	30	100~125	112.5
	60	125~150	137.5

深度/m	静应力/kPa	轴重为30 t、速度为120 km/h
深度/m	静应力/kPa	动应力/kPa	动静应力比
0	17.7	116.29	6.57
0.6	30.0	72.23	2.41
0.9	35.4	48.56	1.38
2.5	64.2	28.03	0.44
3.5	82.2	17.52	0.21
4.5	100.2	12.89	0.13

重载铁路改良土和A组填料过渡段的动力特性

Dynamic features of transition section between improved soil and A⁃filled of heavy⁃haul railway

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类别	重度/（kN·m^-3）	弹性模量/ MPa	泊松比	黏聚力/kPa	摩擦角/（°）
C₈₀车	78.27	210 000	0.31	-	-
钢轨	78.5	210 000	0.31	-	-
轨枕	27	21 000	0.17	-	-
道床	21.3	300	0.30	-	-
A组填料	19.5	240	0.25	-	-
5%改良土	18.2	210	0.28	244	41.8
3%改良土	18.1	200	0.28	139	27.6
地基土	17.6	38	0.32	42	20.6

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