某二级高边坡健康监测试验研究与分析

李京榜; 朱彦鹏; 叶帅华; 马孝瑞

doi:10.11779/CJGE2018S1021

某二级高边坡健康监测试验研究与分析 English Version

李京榜^{1, 2},
朱彦鹏^{1, 2},
叶帅华^{1, 2},
马孝瑞^{1, 2}

1. 兰州理工大学土木工程学院,甘肃兰州 730050;
2. 西部土木工程防灾减灾教育部工程研究中心,甘肃兰州 730050

基金项目: 国家科技支撑计划项目（2011BAK12B07）; 教育部长江学者创新团队支持计划项目（2013IRT13068）; 国家自然科学基金项目（51508256）; 甘肃省建设科技攻关计划项目（JK2015-5）

详细信息

作者简介:
李京榜(1987- ),男,河南方城人,博士研究生,主要从事支挡结构的研究。E-mail：lst_123143567@163.com。

中图分类号: TU753.8
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出版历程
- 收稿日期: 2017-06-10
- 发布日期: 2018-08-24

Health monitoring tests on a secondary high slope

LI Jing-bang^{1, 2},
ZHU Yan-peng^{1, 2},
YE Shuai-hua^{1, 2},
MA Xiao-rui^{1, 2}

1. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
2. Northwest Center for Disaster Mitigation in Civil Engineering, Ministry of Education, Lanzhou 730050, China

摘要

摘要: 近年来,随着中国建设事业规模的增大,多级高边坡工程安全问题日益突出,对边坡工程进行监测预警尤为必要。依托舟曲灾后重建项目某二级高边坡项目,建立了一套综合立体的自动化监测系统。通过对边坡内力、位移的监测与分析,发现了边坡在施工和运营阶段的一些变化特征和规律：边坡支护初期,应力、位移变化的幅度较大;随着支护结构与边坡内部岩体的相互调整,二者变化趋于平稳。该边坡运营阶段的最大位移变化速度为0.25 mm/d<0.5 mm/d,监测点最大位移累积变化量小于10 mm;格构梁的内力与变形也均处于弹性范围之内。综合各项监测结果可以得出,支护结构对该边坡起到有效的加固效果,该边坡在运营阶段处于稳定状态。该试验对今后同类边坡的加固设计与监测分析具有一定的参考价值。
- 二级高边坡 /
- 锚索格构梁 /
- 变形 /
- 应力 /
- 自动化 /
- 健康监测
Abstract: In recent years, with the increasing scale of construction in China, the safety issues of multistage high slope have become increasingly prominent, and it is necessary to monitor and warn the slope work. A comprehensive three-dimensional automatic slope monitoring system based on a high slope reinforcement work instance of Zhouqu reconstruction project after disaster is established. Through monitoring and analysis of the slope of stress and displacement, it is found that the changes of the slope in the characteristics and laws during the construction and operational phases are: as follows during the initial phrase of slope support, the stress and displacement amplitude is greater. With the mutual adjustment of internal support structure and rock slope, both changes are stable. The maximum displacement speed of this slope is 0.25 mm/d﹤0.5 mm/d, accumulated variation of the maximum displacement is less than 10 mm. The force and deformation lattice beams are also in the elastic range. Based on the monitoring results, it can be drawn that the anchor lattice beam can play an effective reinforcement effect, and during the operational phase this slope is in a stable state. The test has certain reference value for the reinforcement design and monitoring analysis of similar slopes in the future.
- secondary high slope /
- anchor lattice beam /
- deformation /
- stress /
- automation /
- health monitoring

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参考文献(14)

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