雨林乔木直根根土复合体的抗剪强度试验研究

doi:10.13722/j.cnki.jrme.2016.1056

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摘要

为探索不同类型的雨林乔木直根根土复合体的抗剪强度，采用自行设计加工的大型根土复合体直剪仪对不同根径、根数以及根系分布条件下的根土复合体进行直剪试验。通过电动汽车千斤顶，对上剪切盒匀速缓慢施加推力，试验过程中实时记录千斤顶推力的大小、直根相对剪切盒的位移及剪切盒位移等。试验结果显示：土中根系的分布类型、根径大小、根数和剪切深度会影响到根土复合体的抗剪强度及相应的强度指标；植被根系对土体的加筋作用具有积极作用，为后续更加深入地研究乔木根系对小型边坡的治理奠定试验基础。

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	赵记领1
	李光范1
	胡伟1
	文伟2
	谭杰1
	刘顺凯1

关键词 ：生态护坡, 植被, 根系, 小型边坡, 浅层滑坡

Abstract：

In order to explore the shear strength of the different types of rainforest tree straight roots and soil composite，the research group adapted direct shear tests on shear planes with different the number of root，root diameter and root distribution by designed large complex root-soil direct shear apparatus。Through the electric automotive jack，to push against the upper shear box at a constant speed，in the process of the test always keep a record of the date：jack thrust size，the relative displacement of straight root and shear box，displacement of shear box and so on. Experimental results show that the distribution types of root，root diameter，the number of root and shear depth can effect the shear strength and the shear strength index of the root-soil composite；the root of vegetation has a positive effect on the reinforcement of soil，The trail lays a foundation for more in-depth research of subsequent tree roots of small landslide governance.

Key words： ecological slope protection vegetation root system small slope shallow landslide

引用本文:

赵记领1，李光范1，胡伟1，文伟2，谭杰1，刘顺凯1. 雨林乔木直根根土复合体的抗剪强度试验研究[J]. 岩石力学与工程学报, 2017, 36(S1): 3663-3669.
ZHAO Jiling1，LI Guangfan1，HU Wei1，WEN Wei2，TAN Jie1，LIU Shunkai1. Experiment research on rainforest trees tap root resistance slide effect in the shallow landslide. , 2017, 36(S1): 3663-3669.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2016.1056 或 https://rockmech.whrsm.ac.cn/CN/Y2017/V36/IS1/3663

[1] ABERNETHY B，RUTHERFURD I D. The distribution and strength of riparian tree roots in relation to riverbank reinforcement[J]. Hydrological Processes，2001，15(1)：63–79.

[2] WU T H. Investigation of landslides on Prinee of Wales Island，Alaska[R]. Columbus：Department of Civil Engineering，Ohio State University，1976.

[3] ABERNETHY B，RUTHERFURD I D. The effect of riparian tree roots on the mass-stability of riverbanks earth surface processes and landforms[J]. Earth Surface Processes and Landforms，2000，25(9)：921–937.

[4] NILAWEERA N S，NUTALAYA P. Role of tree roots in slope stabilisation[J]. Bulletin of Engineering Geology and the Environment，1999，57(4)：337–342.

[5] OPERSTEIN V，FRYDMAN S. The influence of vegetation on soil strength[J]. Ground Improvement，2000，4(2)：81–89.

[6] GYSSELS G，POESEN J，BOCHET E，et al. Impact of plant roots on the resistance of soils to erosion by water[J]. Progress in Physical Geography，2005，29：189–217.

[7] 李铁. 植物根系对海南红粘土强度影响研究[硕士学位论文][D]. 海口：海南大学，2013.(LI Tie. Study on the effect of plant roots on the intensity of the red clay in Hainan[M. S. Thesis][D]. Haikou：Hainan University，2013.(in Chinese))

[8] 陈昌富，刘怀星，李亚平. 草根加筋土的室内三轴试验研究[J]. 岩土力学，2007，28(10)：2 041–2 045.(CHEN Changfu，LIU Huaixing，LI Yaping. Study on grassroots-reinforced soil by laboratory triaxial test[J]. Rock and Soil Mechanics，2007，28(10)：2 041–2 045.(in Chinese))

[9] 闫海燕. 香根草根土复合体力学性能研究[硕士学位论文][D]. 重庆：重庆交通大学，2013.(YAN Haiyan. Research on mechanical properties of vetiver root-soil composite[M. S. Thesis][D]. Chongqing：Chongqing Jiaotong University，2013.(in Chinese))

[10] 周正军，许文年，夏振尧，等. 植物根系对土质边坡浅层稳定性影响分析[J]. 人民长江，2011，(7)：82–85.(ZHOU Zhengjun，XU Wennian，XIA Zhenyao，et al. Research on influence of vegetation roots on shallow stability of soil slope[J]. Yangtze River，2011，(7)：82–85.(in Chinese))

[11] 魏会林. 植物根系对土体的加筋效应试验研究[J]. 交通世界：工程技术，2015，(12)：55–57.(WEI Huilin. Effect experimental study of plant roots reinforcement on soil[J]. Transport World：Engineering and Technology，2015，(12)：55–57.(in Chinese))

[12] 刘小燕，桂勇，罗嗣海，等. 植物根系固土护坡抗剪强度试验研究[J]. 江西理工大学学报，2013，(3)：32–37.(LIU Xiaoyan，GUI Yong，LUO Sihai，et al. Experimental research on improving shear strength in slope protection by plant root system[J]. Journal of Jiangxi University of Science and Technology，2013，(3)：32–37.(in Chinese))

[13] 吕晶，高甲荣，王颖，等. 不同护坡植物对岸坡土壤性质的影响及效应分析[J]. 水土保持研究，2010，(3)：101–104.(LU Jing，GAO Jiarong，WANG Ying，et al. Effects of different plant revetments on the soil physical feature[J]. Research of Soil and Water Conservasion，2010，(3)：101–104.(in Chinese))

[14] 余芹芹，胡夏嵩，李国荣. 寒旱环境灌木植物根–土复合体强度模型试验研究[J]. 岩石力学与工程学报，2013，22(5)：1 020–1 031. (YU Jinjin，HU Xiasong，LI Guorong. Research on strength model test of shrub root-soil composite system in cold and arid environments[J]. Chinese Journal of Rock Mechanics and Engineering，2013，22(5)： 1 020–1 031.(in Chinese))

[15] 朱海丽，胡夏嵩，毛小青. 青藏高原黄土区护坡灌木植物根系力学特性研究[J]. 岩石力学与工程学报，2008，27(增2)：3 445–3 452. (ZHU Haili，HU Xiasong，MAO Xiaoqing. Study on mechanical characteristics of shrub roots for slope protection in loess area of Tibetan plateau[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.2)：3 445–3 452.(in Chinese))

[16] 李国荣，胡夏嵩，毛小青. 青藏高原东北部黄土区灌木植物根系护坡效应的数值模拟[J]. 岩石力学与工程学报，2010，29(9)：1 877– 1 884.(LI Guorong，HU Xiasong，MAO Xiaoqing. Numerical simulation of shrub roots for slope protection effects on loess area of northeast Qinghai-Tibetan plateau[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(9)：1 877–1 884.(in Chinese))

[17] 李光莹，虎啸天，李希来. 黄河源玛沁地区高寒草地植物固土护坡的力学效应[J]. 山地学报，2014，(5)：550–560.(LI Guangying，HU Xiaotian，LI Xilai. Mechanical effects of alpine grassland plants in slope protection in Maqin county of the source area of the Yellow River[J]. Mountain Research，2014，(5)：550–560.(in Chinese))

[18] 胡夏嵩，李国荣，朱海丽，等. 寒旱环境灌木植物根–土相互作用及其护坡力学效应[J]. 岩石力学与工程学报，2009，28(3)：613–620.(HU Xiasong，LI Guorong，ZHU Haili，et al. Research on interaction between vegetation root and soil for slope protection and its mechanical effect in cold and arid environments[J]. Chinese Journal of Rock Mechanics and Engineering，2009a，28(3)：613–620.(in Chinese))

[19] 胡夏嵩，李国荣，朱海丽. 寒旱环境灌木植物根–土相互作用及其护坡力学效应[J]. 岩石力学与工程学报，2009，28(3)：613.(HU Xiasong，LI Guorong，ZHU Haili. Research on interaction between vegetation root and soil for slope protection and its mechanical effect in cold and arid environments[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(3)：613.(in Chinese))

[20] 周富春，王小彪，刘雪莲. 4种公路工程生态护坡类型的防治效果研究[J]. 水土保持通报，2012，(5)：220–223.(ZHOU Fuchun，WANG Xiaobiao，LIU Xuelian. Control efficiency of four types of ecological slope protection in highway engineering[J]. Bulletin of Soil and Water Conservation，2012，(5)：220–223.(in Chinese))

[21] 田丽洁，蒋美珍. 行道树对交通铅的吸收和积累[J]. 环境工程，1984，(6)：54–56.(TIAN Lijie，JIANG Meizhen. Street trees absorption and accumulation traffic lead[J]. Environmental Engineering，1984，(6)：54–56.(in Chinese))