预应力格构锚固体系格构梁内力分布规律模型试验研究

doi:10.13722/j.cnki.jrme.2014.1251

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (445 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The internal force distribution in lattice beams of prestressed lattice anchorage system under the action of prestress，in the process of landslide and at the limit state of the landslide was investigated through large-scale physical modelling test. The test results were compared with the ones calculated with the reverse beam method. It was found that the strains in lattice beam increased gradually in the process of landslide development with two extreme values，of which the positive maxima occur at the mid-spans and the negative maxima appear at the nodes. The abstract values of the latter were greater than the former. The mid-span of the beam was in lateral tension while the node part was in lateral compression. The strains in horizontal beam were symmetrical while the strains in vertical beam were increased from top to bottom. In the prestressing stage，the forces in each horizontal beam and each vertical beam were the same. But in the limit state，the forces in horizontal beams increased from top to bottom. The internal forces in bottom beam was significantly greater than that in top beam. The forces in horizontal and vertical beam were different. The bending moments at the nodes of horizontal beam were greater than that of vertical beam. The internal forces of the test values and theoretical values with the reverse beam method had basically the same trend，which were relatively close at two ends but were different at the middle part. The method of reversing beam cannot reflect the exact state of forces in the middle of beams.

Key words： slope engineering landslide protection prestressed force lattice anchor system lattice beam internal force

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.1251 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/I8/1619

[1] 殷跃平. 滑坡钢筋砼格构防治“倒梁法”内力计算研究[J]. 水文地质工程地质，2005，(6)：52–56.(YIN Yueping. Internal force analysis on steel concrete lattice by reverse beam method for landslide control[J]. Hydrogeology & Engineering Geology，2005，(6)：52–56.(in Chinese)) [2] 李德芳，张友良，陈从新. 边坡加固中预应力锚索地梁内力计算[J]. 岩土力学，2000，21(2)：170–172.(LI Defang，ZHANG Youliang，CHEN Cong-liang. Design of prestressed-cable sommer for slope- reinforcing engineering[J]. Rock and Soil Mechanics，2000，21(2)：170–172.(in Chinese)) [3] 唐辉明，许英姿，程新生. 滑坡治理工程中钢筋混凝土格构梁设计理论研究[J]. 岩石力学，2004，25(11)：1 683–1 687.(TANG Huiming，XU Yingzi，CHENG Xinsheng. Research on design theory of lattice frame anchor structure in landslide control engineering[J]. Rock and Soil Mechanics，2004，25(11)：1 683–1 687.(in Chinese)) [4] 李群，章广成，唐辉明，等. 十字交叉格构梁内力分析与优化设计[J]. 煤田地质与勘探，2006，34(6)：50–53.(LI Qun，ZHANG Guangcheng，TANG Huiming，et al. Analysis on internal force of lattice beam and optimization design[J]. Coal Geology and Exploration，2006，34(6)：50–53.(in Chinese)) [5] 肖世国，周德培. 岩石高边坡预应力锚索地梁的一种内力计算方法[J]. 岩石力学与工程学报，2003，22(2)：250–253.(XIAO Shiguo，ZHOU Depei. Internal force calculation method of prestressed-cable beam-on- foundation for high rock slope[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(2)：250–253.(in Chinese)) [6] 吴礼舟，黄润秋. 加固膨胀土路堑边坡中框架梁的内力计算[J]，岩土力学，2005，26(7)：1 113–1 117.(WU Lizhou，HUANG Runqiu. Calculation of internal forces of frame beam for strengthening expansive soil roadcut slope[J]. Rock and Soil Mechanics，2005，26(7)：1 113–1 117.(in Chinese)) [7] 李群. 格构梁双参数设计理论与应用研究[硕士学位论文][D]. 武汉：中国地质大学，2007.(LI Qun. Study on tow-parameter design theory of lattice frame and its application[M. S. Thesis][D]. Wu Han：China Universtity of Geosciences，2007.(in Chinese)) [8] 何思明，杨雪莲，周永江. 预应力锚索地梁与地基共同作用分析[J]，岩石力学，2006，27(1)：83–87.(HE Siming，YANG Xuelian，ZHOU Yongjiang. Analysis of interaction of prestressed anchorrope foundation beam and foundation[J]. Rock and Soil Mechanics，2006，27(1)：83–87.(in Chinese)) [9] 田亚护，刘建坤，张玉芳. 预应力锚索框架内力计算的有限差分法[J]. 北京交通大学学报，2007，31(4)：22–25.(TIAN Yahu，LIU Jiankun，ZHANG Yufang. Internal force calculation of prestressed anchor cable frame by finite difference method[J]. Journal of Beijing Jiaotong University，2007，31(4)：22–25.(in Chinese)) [10] 王志俭，宁万辉，赵家成. 锚杆格构系统格构梁内力计算方法分析[J]. 三峡大学学报：自然科学版，2010，32(6)：47–50.(WANG Zhijian，NING Wanhui，ZHAO Jiacheng. Analysis of calculation methods for internal force of lattice beam[J]. J of China Three Gorges Univ：Natural Sciences，2010，32(6)：47–50.(in Chinese)) [11] 宁万辉，王志俭，罗先启，等. 滑坡治理中格构梁内力矩阵分析法研究[J]. 水电能源科学，2010，28(5)：91–93.(NING Wanhui，WANG Zhijian，LUO Xianqi，et al. Lattice beam internal forces matrix analysis research in landslide[J]. Water Resources and Power，2010，28(5)：91–93.(in Chinese)) [12] 朱宝龙，杨明，胡厚田，等. 土质边坡加固中预应力锚索框架内力分布的试验研究[J]，岩石力学与工程学报，2005，24(4)：697–702.(ZHU Baolong，YANG Ming，HU Houtian，et al. Testing study on internal forces for prestressed anchor cable frame in reinforced soil slope[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(4)：697–702.(in Chinese)) [13] 朱大鹏，晏鄂川，宋琨. 格构梁与边坡岩体相互作用机制及现场试验研究[J]. 岩石力学与工程学报，2009，28(增1)：2 947–2 953. (ZHU Dapeng，YAN Echuan，SONG Kun. Research on interaction mechanism between lattice beam and slope rock mass and field test[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.1)：2 947–2 953.(in Chinese)) [14] 杨明，胡厚田，卢才金，等. 路堑土质边坡加固中预应力锚索框架的内力计算[J]. 岩石力学与工程学报，2002，21(9)：1 383–1 386. (YANG Ming，HU Houtian，LU Caijin，et al. Calculation of internal forces for prestressed anchor cable frame used in reinforced roadcut soil slope[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(9)：1 383–1 386.(in Chinese)) [15] 马迎娟. 预应力锚索格构梁复合结构的模型试验研究[硕士学位论文][D]. 成都：成都理工大学，2005.(MA Yingjuan. Study on complex structure model experiment of prestressed anchor-rope and lattice beam[M. S. Thesis][D]. Chengdu：Chengdu University of Technology，2005.(in Chinese)) [16] 刘洪佳，门玉明，李寻昌，等. 采用不同滑面材料的滑坡模型试验研究[J]. 灾害学，2011，26(1)：10–13.(LIU Hongjia，MEN Yuming，LI Xunchang，et al. Study on Slip Material in Landslide Model Tests[J]. Journal of Catastrophology，2011，26(1)：10–13.(in Chinese)) [17] 北京科技大学，东北大学. 工程力学—材料力学(第4版)[M]. 北京：高等教育出版社，2008.(University of science and technology Beijing，northeastern university mechanical engineering mechanics of materials(fourth edition)[M]. Beijing：Higher Education Press，2008.(in Chinese)) [18] 中国地质调查局. DZ/T 0219—2006滑坡防治工程设计与施工技术规范[S]. 北京：中国标准出版社，2006.(Geological survey of china. DZ/T 0219-2006 specification of design and construction for landslide stabilization[S]. Beijing：China Standard Press，2006.(in Chinese))