[1]鞠兴华,杨晓华,张莎莎.基于尖点突变理论的软岩弃渣路堤局部稳定性分析[J].水文地质工程地质,2019,46(06):112-118.[doi:10.16030/j.cnki.issn.1000-3665.2019.06.15]
 JU Xinghua,YANG Xiaohua,ZHANG Shasha.An analysis of local stability of soft rock cinder embankment based on the cusp catastrophe theory[J].Hydrogeology & Engineering Geology,2019,46(06):112-118.[doi:10.16030/j.cnki.issn.1000-3665.2019.06.15]
点击复制

基于尖点突变理论的软岩弃渣路堤局部稳定性分析()
分享到:

《水文地质工程地质》[ISSN:1000-3665/CN:11-2202/P]

卷:
46卷
期数:
2019年06期
页码:
112-118
栏目:
工 程 地 质
出版日期:
2019-11-15

文章信息/Info

Title:
An analysis of local stability of soft rock cinder embankment based on the cusp catastrophe theory
文章编号:
1000-3665(2019)06-0112-07
作者:
鞠兴华1杨晓华2张莎莎2
1.潍坊学院建筑工程学院,山东 潍坊261041;2.长安大学公路学院,陕西 西安710064
Author(s):
JU Xinghua1 YANG Xiaohua2 ZHANG Shasha2
1.College of Architecture and Engineering, Weifang University, Weifang, Shandong261041, China;2.School of Highway, Chang’an University, Xi’an,Shaanxi710064, China
关键词:
软岩路堤弃渣填筑参数尖点突变理论稳定性评价
Keywords:
soft rock embankment cinder filling parameters cusp catastrophe theory stability evaluation
分类号:
U416.1+2
DOI:
10.16030/j.cnki.issn.1000-3665.2019.06.15
文献标志码:
A
摘要:
为充分利用现场材料资源,达到节约成本的目的,文章基于筛分试验、击实试验、承载比试验(CBR试验),分析了软岩弃渣的工程特性;其次,以路基沉降监测为基础,采用尖点突变理论分析路基填筑后的稳定性;再利用粒子群优化极限学习机模型(PSO-ELM)对路基变形进行预测,以评价路基稳定性的发展趋势。研究结果表明:成武高速的软岩弃渣具有较好的级配,且最优含水率条件下的CBR值符合路堤设计要求,说明软岩弃渣作为路基填料的可行性;在现场监测结果中,Ⅰ号监测断面的最大沉降量为71.3 mm,Ⅱ号监测断面的最大沉降量为61.4 mm;在尖点突变理论的整体稳定性分析中,两监测点的突变特征值均大于零,路基处于稳定状态;同时,在分阶段的稳定性分析中,不同阶段的突变特征值也大于零,并随沉降时间的增加,突变特征值具减小趋势,得出路基在不同沉降阶段也处于稳定状态;通过变形预测,得出两监测点均具有较高的预测精度,验证了PSO-ELM模型在路基变形预测中的适用性,并得出路基稳定性的发展趋势趋于稳定,验证了软岩弃渣在路基填筑中具有适用性。
Abstract:
In order to make full use of insitu material resources and achieve cost savings, this paper analyzes the engineering characteristics of soft rock waste slag based on screening test, compaction test and CBR(Califonia Bearing Ratio Test)test. Based on subgrade settlement monitoring and by using point mutation, the stability of the roadbed after the foundation is theoretically analyzed, and the roadbed deformation is predicted with the PSO-ELM (Particle Swarm Optimization for Limit Extreme Learning Machine) model to evaluate the development trend of the roadbed stability. The results show that the Chengwu high speed soft rock slag has good gradation, and the CBR value under the optimal water content is in line with the requirements of embankment design, indicating the feasibility of soft rock slag as subgrade filler. The field monitoring results show that the maximum settlement of No. I monitoring section is 71.3 mm, the maximum settlement of No. II monitoring section is 61.4 mm. In the holistic stability analysis of cusp catastrophe theory, the mutation characteristic values of the two monitoring points are all greater than zero and the subgrade is in a stable state. At the same time, in the stage of stability analysis, the sudden change characteristic values of different stages are greater than zero, and with the increasing of the settling time, the sudden change characteristic value decreases, and a way out is obtained. The foundation is also in a stable state in different settling stages. Through the deformation prediction, the two monitoring points are of high prediction accuracy. The applicability of the PSO-ELM model in the prediction of subgrade deformation is verified, and the development trend of the stability of the subgrade tends to be stable, and the applicability of the soft rock residue in the subgrade filling is verified.

参考文献/References:

[1]郭建湖. 软岩填筑高速铁路路基的适用性探讨[J]. 铁道工程学报, 2014, 31(6):13-17.
[GUO J H. Applicability exploration on the filling subgrade of high speed railway with soft rock[J].Journal of Railway Engineering Society, 2014, 31(6):13-17.(in Chinese)]
[2]张莎莎, 杨晓华, 杜耀辉,等. 泥质软岩土石弃渣路基填筑工艺及质量检测方法[J]. 长安大学学报(自然科学版), 2016, 36(1):8-13.
[ZHANG S S,YANG X H,DU Y H, et al. Roadbed construction process and quality inspection for argillaceous soft rock earth mixture spoil[J].Journal of Chang’an University(Natural Science Edition), 2016, 36(1):8-13. (in Chinese)]
[3]张静波, 何斌, 吕岩松,等. 强-中风化板溪群板岩填料干湿循环动力特性的试验研究[J]. 公路, 2017,62(11):47-52.
[ZHANG J B,HE B,LV Y S,et al.Test and study of dynamic characteristics of heavy-medium weathered Banxi group slate fillings under dry-wet cycles[J]. Highway, 2017,62(11):47-52. (in Chinese)]
[4]毛雪松, 朱凤杰, 黄喆,等. 改良千枚岩填料的CBR值影响因素分析[J]. 重庆交通大学学报(自然科学版), 2017, 36(2):43-48.
[MAO X S,ZHU F J,HUANG Z,et al. Analysis of the influences on CBR value of improved phyllite as a fill[J].Journal of Chongqing Jiaotong University (Natural Science), 2017, 36(2):43-48. (in Chinese)]
[5]宋杨, 张海峰, 孙文君,等. 含超大粒径块石土石混填路基压实度影响因素研究[J]. 公路交通科技, 2017, 34(4):39-44.
[SONG Y,ZHANG H F,SUN W J,et al. Study on influencing factors of compaction degree of earth-rock mixed filling subgrade containing large stone[J].Journal of Highway and Transportation Research and Development, 2017, 34(4):39-44. (in Chinese)]
[6]毛雪松, 周雷刚, 马骉,等. 强风化千枚岩填筑路基改良技术研究[J]. 中国公路学报, 2012, 25(2):20-26.
[MAO X S,ZHOU L G,MA B,et al.Research on improvement technology of filling subgrade with highly-weathered phyllite[J].China Journal of Highway and Transport, 2012, 25(2):20-26. (in Chinese)]
[7]毛雪松, 樊宇朔, 孟庆猛. 高速公路强风化千枚岩填筑路基施工方案研究[J]. 中外公路, 2014, 34(6):1-4.
[MAO X S,FAN Y S,MENG Q M. Highway subgrade construction scheme of weathered phyllite research[J]. Journal of China Foreign Highway, 2014, 34(6):1-4. (in Chinese)]
[8]赵德新. 山区高速公路的路堤填料蠕变性质以及施工技术研究[J]. 公路工程, 2017, 42(4):355-358.
[ZHAO D X. Study on creep properties and construction technology of embankment filler in mountainous expressway[J]. Highway Engineering, 2017, 42(4):355-358. (in Chinese)]
[9]詹永祥, 龙小波, 姚海林,等. 基于动变形控制法的软岩路基填筑材料回弹模量控制[J]. 上海交通大学学报, 2017, 51(4):450-455.
[ZHAN Y X,LONG X B,YAO H L,et al.The control of resilient modulus of soft rock as filling material for subgrade based on dynamic deformation control method[J].Journal of Shanghai Jiaotong University, 2017, 51(4):450-455. (in Chinese)]
[10]张莎莎, 杨晓华, 王明皎,等. 泥质软岩土石混合料弃渣路用性能研究[J]. 公路交通科技, 2015, 32(2):55-59.
[ZHANG S S,YANG X H,WANG M J,et al.Study on road performance of argillaceous soft rock earth mixture spoil[J]. Journal of Highway and Transportation Research and Development, 2015, 32(2):55-59. (in Chinese)]
[11]赵众爱, 张莎莎, 杨晓华. 成武高速公路泥岩弃渣填筑路基施工方法及其稳定性分析[J]. 公路, 2014,59(9): 48-51.
[ZHAO Z A,ZHANG S S,YANG X H. Analysis on the construction method of mudstone waste slag for subgrade filler and its stability for Chengxian-wudu expressway[J].Highway,2014,59(9):48-51. (in Chinese)]
[12]王明皎. 软岩弃渣路用性能的研究[D]. 西安:长安大学, 2013.
[WANG M J.Study on the road performance of argillaceous soft rock and slag[D].Xi’an: Chang’an University, 2013. (in Chinese)]
[13]徐海清, 陈亮, 王炜,等. 软岩隧道围岩塌方的尖点突变预测分析[J]. 铁道工程学报, 2016, 33(11):97-101.
[XU H Q,CHEN L,WANG W,et al.Prediction analysis of surrounding rock collapse in soft rock tunnel by cusp catastrophe[J].Journal of Railway Engineering Society, 2016, 33(11):97-101. (in Chinese)]
[14]赵延林, 吴启红, 王卫军,等. 基于突变理论的采空区重叠顶板稳定性强度折减法及应用[J]. 岩石力学与工程学报, 2010, 29(7):1424-1434.
[ZHAO Y L,WU Q H,WANG W J,et al.Strength reduction method to study stability of goaf overlapping roof based on catastrophe theory[J].Chinese Journal of Rock Mechanics and Engineering, 2010, 29(7):1424-1434. (in Chinese)]
[15]杨爱武,胡垚,邓轩,等.基于静荷载作用软黏土动力长期变形预测研究[J].水文地质工程地质,2017,44(3): 72-78.
[YANG A W, HU Y, DENG X, et al. Prediction of long-term dynamic deformation of soft clay based on static load[J].Hydrogeology & Engineering Geology, 2017,44(3): 72-78. (in Chinese)]
[16]盛逸凡,李远耀,徐勇,等.基于有效降雨强度和逻辑回归的降雨型滑坡预测模型[J].水文地质工程地质,2019,46(1):156-162.
[SHENG Y F,LI Y Y,XU Y, et al. Prediction of rainfall-type landslides based on effective rainfall intensity and logistic regression[J]. Hydrogeology & Engineering Geology, 2019,46(1):156-162. (in Chinese)]

相似文献/References:

[1]岳健,冷伍明,赵春彦,等.联合超前支护技术在水下浅埋软岩公路隧道中的应用[J].水文地质工程地质,2011,38(5):63.
 YUE Jian,LENG Wu-ming,ZHAO Chun-yan.Application of combined advanced support technology in the shallow,soft rock and underwater highway tunnel[J].Hydrogeology & Engineering Geology,2011,38(06):63.
[2]王小军,姜珂,魏永梁,等.青藏铁路多年冻土区路堤人为上限与融化夹层的数值模拟分析[J].水文地质工程地质,2010,37(5):50.
 WANG Xiao-jun,JIANG Ke,WEI Yong-liang,et al.Numerical simulation analyses of artificial upper table and residual thawed layer for embankment of Qinghai-Tibet Railway in the permafrost region[J].Hydrogeology & Engineering Geology,2010,37(06):50.

备注/Memo

备注/Memo:
收稿日期: 2018-12-07; 修订日期: 2019-03-05
基金项目: 国家自然科学基金资助项目(51209006)
第一作者: 鞠兴华(1982-),女,工学博士,副教授,主要从事特殊地基路基方面的研究。E-mail:juxinghua0927@163.com
更新日期/Last Update: 2019-11-15