坡顶超载下加筋三维网–锚杆防护边坡的模型试验

doi:10.13722/j.cnki.jrme.2019.0556

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Abstract In order to explore the mechanical characteristic of slope under flexible protection，the soil slope model under reinforced three-dimensional mat -anchor protection was designed and made. The earth pressure cells，axial force sensors，dial indicators and other components were set inside and outside the model. Various stages of uniform loads were applied to the top of slope to test the development of stress，deformation and anchor axial force. Finally，the mechanism for flexible protected slope was discussed. The results show that the deformation and bearing capacity of slope under overloading condition have experienced three stages，which is elastic compression，bearing capacity development and yield failure. The lateral displacement mode of the slope surface was firstly “concave in the middle-upper part，convex in the lower part”，and then changed to “integral convexity” with the increase of load. The lateral deformation of the inner slope was mainly distributed near the middle-upper part of the slope surface，and the deformation contour was in circular-arc shape. The vertical deformation of the slope surface mainly occurred in the upper middle part of the slope. The vertical deformation of the inner slope mainly distributed directly below the loading zone. Under overloading on slope top，the upper anchor worked first，and its force was also greater than that of the middle and lower anchors. The strength design of the anchor should be in a progressive way.

Key words： slope engineering flexible protection reinforced three-dimensional mat anchor；model test

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	Articles by authors
	HE Fan1
	LIU Ze1
	CHEN Li1
	LOU Huafeng2

Cite this article:

HE Fan1,LIU Ze1,CHEN Li1, et al. Model test on reinforced three dimensional mat-anchor protected slope under overloading on slope top[J]. , 2020, 39(S1): 2665-2673.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2019.0556 OR https://rockmech.whrsm.ac.cn/EN/Y2020/V39/IS1/2665

[1]	周德培，张俊云. 植被护坡工程技术[M]. 北京：人民交通出版社，2003：62–78.(ZHOU Depei，ZHANG Junyun. Bio-geotechnical technology of vegetation[M]. Beiing：China Communications Press，2003：62–78.(in Chinese))
[2]	刘黎明，邱卫民，许文年. 传统护坡与生态护坡比较与分析[J]. 三峡大学学报：自然科学版，2007，29(6)：528–532.(LIU Liming，QIU Weimin，XU Wennian. Discussion on traditional slope protection and ecological slope protection technology.[J]. Journal of China Three Gorges University：Natural Sciences，2007，29(6)：528–532.(in Chinese))
[3]	PATRA C R，BASUDHAR P K. Optimum design of nailed soil slopes[J]. Geotechnical and Geological Engineering，2005，23(3)：273–296.
[4]	阳友奎. 边坡柔性加固系统设计计算原理与方法[J]. 岩石力学与工程学报，2006，25(2)：217–225.(YANG Youkui. Concepts and method of slope flexible stabilization system[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(2)：217–225.(in Chinese))
[5]	汪敏，石少卿，阳友奎. 柔性防护系统中钢丝绳锚杆性能试验研究[J]. 岩石力学与工程学报，2013，32(增1)：2 593–2 599. (WANG Min，SHI Shaoqing，YANG Youkui. Experimental study of cable anchors for flexible protection[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(Supp.1)：2 593–2 599.(in Chinese))
[6]	HANG L，BAOCHENG C，XIANG F，et al. Effect of bolt with long-short layout on slope stability[J]. Journal of Central South University：Science and Technology，2015，46(2)：625–630.
[7]	罗阳明，雷承弟，周德. SNS 主动防护条件下边坡绿化及稳定性探讨[J]. 岩石力学与工程学报，2006，25(2)：235–240.(LUO Yangming，LEI Chengdi，ZHOU De. Discussion on vegetation methods and stability of slopes reinforced by sns active protection system[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(2)：235–240.(in Chinese))
[8]	梁迪，宋鹏，韩晓雷. 柔性面层土钉墙室内模型试验研究[J]. 工业建筑，2018，48(1)：97–102.(LIANG Di，SONG Peng，HAN Xiaolei. Laboratory model test of soil nailing walls[J]. Industrial Construction，2018，48(1)：97–102.(in Chinese))
[9]	肖成志，孙建诚，李雨润，等. 三维土工网垫植草护坡防坡面径流冲刷的机制分析[J]. 岩土力学，2011，32(2)：453–458.(XIAO Chengzhi，SUN Jiancheng，LI Yurun，et al. Mechanism analysis of ecological slope protection against runoff erosion by grass jetting on 3D geomat[J]. Rock and Soil Mechanics，2011，32(2)：453–458.(in Chinese))
[10]	刘晓路，高强，肖衡林，等. 基于三维土工网垫的植草护坡技术研究[J]. 长江科学院院报，2008，25(3)：58–61.(LIU Xiaolu，GAO Qiang，XIAO Henglin，et al. Slope protection technology of grass seeding based on 3D geomat[J]. Journal of Yangtze River Scientific Research Institute，2008，25(3)：58–61.(in Chinese))
[11]	肖成志，孙建诚，刘熙媛，等. 三维土工网垫植草护坡性能试验[J]. 重庆大学学报，2010，33(8)：453–458.(XIAO Chengzhi，SUN Jiancheng，LIU Xiyuan，et al. Experimental study of properties of slope protection through grass jetting on 3D geomat[J]. Journal of Chongqing University，2010，33(8)：453–458.(in Chinese))
[12]	李连胜，黄玉忠. 三维土工网垫喷播植草护坡技术应用分析[J]. 中国水土保持，2004，(8)：39–40.(LI Liansheng，HUANG Yuzhong. Application analysis of 3D geonet mat spraying and planting grass slope protection technology[J]. Soil and Water Conservation in China，2004，(8)：39–40.(in Chinese))
[13]	魏金祥. 三维土工网垫防护边坡稳定性研究[硕士学位论文][D]. 济南：山东大学，2013.(WEI Jinxiang. Research on the stability of 3D-geomat protection of slope[M. S. Thesis][D]. Jinan：Shandong University，2013.(in Chinese))
[14]	钟春欣，王玮，王树仁. 三维植被网加筋草皮坡面土壤侵蚀试验研究[J]. 河海大学学报：自然科学版，2007，35(3)：258–261.(ZHONG Chunxin，WANG Wei，WANG Shuren. Experimental research on soil erosion of turf slope reinforced by 3D vegetation net[J]. Journal of Hohai University：Natural Sciences，2007，35(3)：258–261.(in Chinese))
[15]	沈小明，李轩，周国光. 高速公路岩石边坡生态防护技术综述[J]. 公路工程，2007，32(5)：29–32.(SHEN Xiaoming，LI Xuan，ZHOU Guoguang. Summarization of ecological protection technology for rock side slope of expressway[J]. Highway Engineering，2007，32(5)：29–32.(in Chinese))
[16]	陈江，夏雄. 金温铁路危石治理中柔性防护技术应用研究[J]. 岩石力学与工程学报，2006，25(2)：312–317.(CHEN Jiang，XIA Xiong. Research on application of flexible protection technique to Jinhua—Wenzhou railway rock fall treatment[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(2)：312–317.(in Chinese))
[17]	贺咏梅，彭伟，阳友奎. 边坡柔性防护系统的典型工程应用[J]. 岩石力学与工程学报，2006，25(2)：323–328.(HE Yongmei，PENG Wei，YANG Youkui. Typical cases of slope flexible protection system[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(2)：323–328.(in Chinese))
[18]	冯丛林，周凯，杨再常，等. 加筋麦克垫在护滩工程中的应用及施工质量控制[J]. 水运工程，2014，(3)：183–187.(FENG Conglin，ZHOU Kai，YANG Zaichang，et al. Application and construction quality control of Macmat-R in beach protection project[J]. Port and Waterway Engineering，2014(3)：183–187.(in Chinese))
[19]	程庆臣，张文海，程强. 加筋麦克垫抗冲刷试验研究及其在工程中的应用[J]. 海河水利，2016，(1)：51–53.(CHENG Qingchen，ZHANG Wenhai，CHENG Qiang. Study on the anti Scouring test of Macmat R and the application in engineering[J]. Haihe Water Resources，2016，(1)：51–53.(in Chinese))
[20]	郭锐剑. 锚杆框架格梁固坡机理及工程应用研究[硕士学位论文][D]. 兰州：兰州大学，2012.(GUO Ruijian. Study on reinforcement mechanism and its engineering application of anchor and frame lattice beams[M. S. Thesis][D]. Lanzhou：Lanzhou University，2012.(in Chinese))
[21]	马洪生. 锚索框架梁加固边坡的静动模型试验及抗震设计方法[博士学位论文][D]. 成都：西南交通大学，2016.(MA Hongsheng. Static and dynamic model tests and seismic design methods of anchored-cable frame-beam structures[Ph. D. Thesis][D]. Chengdu：South West Jiaotong University，2016.(in Chinese))