组合支护结构加固高边坡的地震动响应特性研究

doi:10.13722/j.cnki.jrme.2016.0430

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (718 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要基于原型边坡设计大型振动台模型试验，通过监测不同幅值和类型地震波作用时的桩身土压力、坡体加速度、格构梁位移和锚索预应力，研究组合结构与加固边坡体的动力响应特性，评价加固效果。试验结果表明：锚索与抗滑桩在地震时协同工作，桩身土压力随输入波幅值增加而增大，锚索预应力变化规律与边坡体的稳定程度有关，表现为先减小后增大；地震造成抗滑桩主动土压力的合力作用点上移至l/2处，被动土压力区的2个转点也发生明显变化；输入地震波峰值不大于0.5 g时，格构梁位移响应值较小，坡体中部抗滑桩以下不存在加速度放大效应，边坡整体稳定性好。另外，运用加速度时程的Hilbert边际谱研究了坡体内部的震害损伤特性，损伤识别结果与试验监测数据吻合。该研究成果可为更加合理地考虑地震区锚索格构梁–抗滑桩联合防护边坡的设计提供指导。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	付晓1
	2
	张建经1
	2
	廖蔚茗1
	2
	曹礼聪1
	2
	范刚1
	2

关键词 ：边坡工程, 锚索, 协同工作, 抗滑桩, 振动台试验, 边际谱

Abstract：The seismic behaviors of the slope reinforced with the multi-frame beam，anchor cables and double-row anti-slide piles were investigated with the large-scale shaking table model test. The earth pressure acting on the pile，the axis force in the anchor cable，the acceleration in the slope and the deformation of the frame-beam were measured under the action of El Centro and Wenchuan-Qingping earthquake waves. The anchors and anti-slide piles perform as a collaborative structure under earthquake. The earth pressure increases with the amplitude of input seismic waves. However，The variation of anchor cable prestress is related to the stability of the slope，its value decreases firstly and then increases. The acting point of the resultant force of the active earth pressure moves up to the position of l/2. The pivots of pile embedded bedrock are varied significantly. When the peak ground acceleration of input seismic wave is less than 0.5 g，the displacement response of the frame-beam is small and the acceleration amplification effect does not exist obviously below the pile in the middle part of slope. The damage characteristics of internal slope analyzed using the Hilbert marginal spectrum theory are in agreement with the measured data.

Key words： slope engineering anchor cable cooperative work mechanism anti-slide pile shaking table test marginal spectrum

引用本文:

付晓1，2，张建经1，2，廖蔚茗1，2，曹礼聪1，2，范刚1，2. 组合支护结构加固高边坡的地震动响应特性研究[J]. 岩石力学与工程学报, 2017, 36(4): 831-842.
FU Xiao1，2，ZHANG Jianjing1，2，LIAO Weiming1，2，CAO Licong1，2，FAN Gang1，2. Shaking table test on seismic response of slopes reinforced by pile-cable retaining structure. , 2017, 36(4): 831-842.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2016.0430 或 http://www.rockmech.org/CN/Y2017/V36/I4/831

[8]	何思明，李新坡. 预应力锚杆作用机制研究[J]. 岩石力学与工程学报，2006，25(9)：1 876-1 880.(HE Siming，LI Xinpo. Study of mechanism of prestressed anchor bolt[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(9)：1 876-1 880.(in Chinese))
[2]	周德培，张建经，汤涌. 汶川地震中道路边坡工程震害分析[J]. 岩石力学与工程学报，2010，29(3)：565-576.(ZHOU Depei，ZHANG Jianjing，TANG Yong. Seismic damage analysis of road slopes in Wenchuan earthquake[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(3)：565-576.(in Chinese))
[3]	戴自航. 抗滑桩滑坡推力和桩前滑体抗力分布规律的研究[J]. 岩石力学与工程学报，2002，21(4)：517-521.(DAI Zihang. Study on distribution laws of landslide-thrust and resistance of sliding mass acting on antislide piles[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(4)：517-521.(in Chinese))
[5]	曲宏略，张建经，王富江. 预应力锚索桩板墙地震响应的振动台试验研究[J]. 岩土工程学报，2013，35(2)：313-320.(QU Honglue，ZHANG Jianjing，WANG Fujiang. Seismic response of prestressed anchor sheet pile wall from shaking table tests[J]. Chinese Journal of Geotechnical Engineering，2013，35(2)：313-320.(in Chinese))
[6]	刘昌清，李想，张玉萍. 双排桩支挡结构振动台模型试验与分析[J]. 土木工程学报，2013，46(增2)：190-195.(LIU Changqing，LI Xiang，ZHANG Yuping. Shaking table test and analysis of double row pile retaining structure[J]. China Civil Engineering Journal，2013，46(Supp.2)：190-195.(in Chinese))
[10]	张建经，廖蔚茗，欧阳芳，等. 重复荷载作用下岩锚体系力学特性和黏结性能试验研究[J]. 岩石力学与工程学报，2013，32(4)：829-834.(ZHANG Jianjing，LIAO Weiming，OUYANG Fang，et al. Experimental research on mechanical behavior and bond performance of rock-anchor system[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(4)：829-834.(in Chinese))
[12]	SHUKLA S K，KHANDELWAL S，VERMA V N，et al. Effect of surcharge on the stability of anchor rock slope with water filled tension crack under seismic loading condition[J]. Geotechnical and Geological Engineering，2009，27(4)：529-538.
[13]	史彦文. 锚索框架梁和抗滑桩联合支护在路基高边坡滑坡治理中的应用[J]. 公路，2004，2(2)：89-91.(SHI Yanwen. Application of combining support of frame beams of pre-stressed anchor rope and anti-slide piles to treatment of landslide of high slope[J]. Highway，2004，2(2)：89-91.(in Chinese)) " target="_blank">
[1]	庄卫林，陈乐生，赵河清，等. 汶川地震公路震害调查—路基[M]. 北京：人民交通出版社，2013：20-41.(ZHUANG Weilin，CHEN Lesheng，ZHAO Heqing，et al. Survey on highway seismic hazard of Wenchuan earthquake-subgrade[M]. Beijing：China Communications Press，2013：20-41.(in Chinese))
[4]	曲宏略，张建经. 桩板式抗滑挡墙地震响应的振动台试验研究[J]. 岩土力学，2013，34(3)：743-750.(QU Honglue，ZHANG Jianjing，Research on seismic response of anti-sliding sheet pile wall by shaking table test[J]. Rock and Soil Mechanics，2013，34(3)：743-750.(in Chinese))
[7]	尤春安，战玉宝. 预应力锚索锚固段的应力分布规律及分析[J]. 岩石力学与工程学报，2005，24(6)：925-928.(YOU Chunan，ZHAN Yubao. Distributing characters and analysis of stresses in prestressed cables[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(6)：925-928.(in Chinese))
[9]	MASSARSCH K R，OIKAWA K. Design and practical application of soil anchors[C]// Proceedings of the Ground Anchorages and Anchored Structures. London：Thomas Telford，1997：153-158. " target="_blank">
[11]	叶海林，郑颖人，李安洪，等. 地震作用下边坡预应力锚索振动台试验研究[J]. 岩石力学与工程学报，2012，31(增1)：2 847-2 854. (YE Hailin，ZHENG Yingren，LI Anhong，et al. Shaking table test studies of prestressed anchor cable of slope under earthquake[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.1)：2 847-2 854.(in Chinese))
[14]	向远华. 锚杆框架梁-双排抗滑桩支护膨胀土边坡工作特性分析[J]. 铁道科学与工程学报，2013，10(3)：62-67.(XIANG Yuanhua. Characteristic analysis of frame beam with anchor and double-row anti-slid piles in expan-sive soil slope[J]. Journal of Railway Science and Engineering，2013，10(3)：62-67.(in Chinese))
[17]	HUANG N E，SHEN Z，LONG S R，et al. The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis[C]// Proceedings of the Royal Society A. London：Royal Society Publishing，1998：903-995. " target="_blank">
[19]	中华人民共和国行业标准编写组. TB 10025—2006铁路路基支挡结构设计规范[S]. 北京：中国铁道出版社，2007.(The Professional Standards Compilation Group of People?s Republic of China. TB 10025—2006 Code for design on retaining structures of railway subgrade[S]. Beijing：China Railway Publishing House，2007.(in Chinese)) " target="_blank">
[15]	赖杰，郑颖人，刘云，等. 地震作用下双排抗滑桩支护边坡振动台试验研究[J]. 岩土工程学报，2014，36(4)：680-686.(LAI Jie，ZHENG Yingren，LIU Yun，et al. Shaking table tests on double-row anti-slide piles of slopes under earthquakes[J]. Chinese Journal of Geotechnical Engineering，2014，36(4)：680-686.(in Chinese))
[16]	赖杰，郑颖人，刘云，等. 抗滑桩和锚杆联合支护下边坡抗震性能振动台试验研究[J]. 土木工程学报，2015，48(9)：96-103.(LAI Jie，ZHENG Yingren，LIU Yun，et al. Shaking table text study on anti-slide piles and anchor bars of slope under earthquake[J]. China Civil Engineering Journal，2015，48(9)：96-103.(in Chinese))
[18]	杨智春，张慕宇，丁燕，等. Hilbert边际谱在框架结构损伤检测中的应用[J]. 振动与冲击，2010，29(11)：26-31.(YANG Zhichun，ZHANG Muyu，DING Yan，et al. Application of Hilbert marginal spectrum in damage detection of a frame structure[J]. Journal of Vibration and Shock，2010，29(11)：26-31.(in Chinese))