|本期目录/Table of Contents|

[1]李 杰,陈龙龙,王志丰.路堑边坡扩建开挖过程中的变形分析[J].建筑科学与工程学报,2019,36(05):89-96.
　LI Jie,CHEN Long-long,WANG Zhi-feng.Deformation Analysis of Cutting Slope During Expansion Excavation[J].Journal of Architecture and Civil Engineering,2019,36(05):89-96.
点击复制

路堑边坡扩建开挖过程中的变形分析(PDF)
分享到：

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
36卷
期数:
2019年05期
页码:
89-96
栏目:
出版日期:
2019-09-23

文章信息/Info

Title:
Deformation Analysis of Cutting Slope During Expansion Excavation
文章编号:
1673-2049(2019)05-0089-08
作者:
李 杰1,陈龙龙2,王志丰2
(1. 陕西交通技术咨询有限公司,陕西 西安 710068; 2. 长安大学 公路学院,陕西 西安 710064)
Author(s):
LI Jie1, CHEN Long-long2, WANG Zhi-feng2
(1. Shaanxi Communication Technology Consulting Co., Ltd., Xi'an 710068, Shaanxi, China; 2. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China)
关键词:
边坡工程;  变形稳定性;  现场监测;  软弱结构面;  深层水平位移
Keywords:
slope engineering;  deformation stability;  field monitoring;  weak structural plane;  deep horizontal displacement
分类号:
TU433
DOI:
-
文献标志码:
A
摘要:
为研究路堑边坡开挖过程中岩体边坡和变形稳定性,确保路堑边坡施工及运营期的安全,以路堑边坡扩建工程为依托,采用地表变形及岩体内部位移监测数据分析边坡开挖过程中的变形规律。边坡表面变形通过布设监测点进行监测,边坡深部位移通过钻孔安装多点变位计和测斜管进行监测,得到边坡开挖和变形关系。分析结果表明:在开挖前边坡整体较稳定,随着边坡开挖量的逐渐增多,边坡岩体位移量逐渐增大,边坡深层位移先增加后收敛,最后趋于稳定; 边坡发育的断层、拉裂缝、开挖临空面等对边坡在施工期的稳定性产生较大影响; 开挖结束后边坡各方向的位移均趋于收敛,地表监测点中水平最大累计位移量为12.30 mm,其方向平行道路走向,而垂直最大累计位移量为10.60 mm,发生在第三级台阶; 边坡内部岩层最大水平位移为11.02 mm,主要发生在岩层分界处的断层软弱结构面位置; 在边坡的软弱岩层开挖期间,边坡岩体易出现相对较大的位移变形,开挖结束后短期内边坡地表位移趋于收敛,深层岩体的位移基本稳定; 在边坡开挖过程中,边坡地表位移及深层水平位移在第二级边坡开挖时均变化较大,第二级台阶岩体的合理开挖是控制整个边坡稳定的关键。
Abstract:
In order to study the deformation stability of rock slope during the excavation of cutting slope, and ensure the safety of cutting slope construction and operation period, based on the development of cutting slope, the deformation law of slope excavation was analyzed by surface deformation and internal displacement monitoring data of rock mass. The surface deformation of the slope was monitored by setting observation points, and the deep displacement of the slope was monitored by installing multi-point deflection gauges and inclinometer tubes. Therefore, the relationship between slope excavation and deformation was obtained. The analysis results show that the slope is stable before excavation, and the displacement along the slope is gradually increased with the increase of the slope excavation. After the excavation, the displacement of each slope tends to converge, and the maximum cumulative displacement in the surface monitoring point is 12.30 mm, which is along the parallel road direction, and the vertical maximum cumulative displacement is 10.60 mm, which occurs in the third step. The maximum horizontal displacement of the rock in the slope is 11.02 mm, which mainly occurs in the weak structural plane of the rock boundary. During the excavation of the weak rock slope, the slope rock mass is prone to relatively large displacement deformation. After the excavation, the slope surface displacement tends to converge in a short time, and the displacement of the deep rock mass is basically stable. In the process of slope excavation, the surface displacement and deep horizontal displacement of the slope vary greatly during the excavation of the second stage slope. The reasonable excavation of the rock mass of the second stage slope is the key to control the stability of the whole slope.

参考文献/References:

[1] 杜广印,吴春伟,张国柱,等.深厚海相软土临河公路扩建地基处理方法探讨[J].工程地质学报,2018,26(6):1681-1689.
DU Guang-yin,WU Chun-wei,ZHANG Guo-zhu,et al.Discussion on Deep Marine Clay Foundation Treatment Method of Riverbank Highway Extension[J].Journal of Engineering Geology,2018,26(6):1681-1689.
[2]徐云涛,古海东,叶建龙,等.高速公路改扩建路堑高边坡支护方案优化设计[J].公路交通技术,2016,32(4):1-5.
XU Yun-tao,GU Hai-dong,YE Jian-long,et al.Optimized Design for High Slope Supporting/Protection During Highway Cutting Expanding[J].Technology of Highway and Transport,2016,32(4):1-5.
[3]范光华.钢筋混凝土锚杆框架梁在紫坪铺公路改建工程高边坡中的应用[J].西北水电,2006(3):23-26.
FAN Guang-hua.The Frame Girder of Reinforced Concrete Anchor Bar in the High Slope of Access Road in the Application of[J].Northwest Hydropower,2006(3):23-26.
[4]朱彦鹏,蒋怀军,杨校辉,等.不同配比下机场高填方边坡重塑土变形特性研究[J].建筑科学与工程学报,2017,34(4):19-25.
ZHU Yan-peng,JIANG Huai-jun,YANG Xiao-hui,et al.Study of Deformation Characteristics of Remoulded Soil at Airport High Fill Slope Under Different Proportions[J].Journal of Architecture and Civil Engineering,2017,34(4):19-25.
[5]费鸿禄,苑俊华.基于爆破累积损伤的边坡稳定性变化研究[J].岩石力学与工程学报,2016,35(增2):3868-3877.
FEI Hong-lu,YUAN Jun-hua.Study of Slope Stability Based on Blasting Cumulative Damage[J].Chinese Journal of Rock Mechanics and Engineering,2016,35(S2):3868-3877.
[6]王志丰,王亚琼,谢永利.水泥搅拌桩施工引起深层土体水平位移分析[J].建筑科学与工程学报,2016,33(4):90-96.
WANG Zhi-feng,WANG Ya-qiong,XIE Yong-li.Investigation into Lateral Displacement of Subsoils Induce by Installing Soil-cement Columns[J].Journal of Architecture and Civil Engineering,2016,33(4):90-96.
[7]陈 明,郭天阳,卢文波,等.爆破开挖对边坡岩体裂纹扩展的扰动机制[J].岩石力学与工程学报,2015,34(7):1307-1314.
CHEN Ming,GUO Tian-yang,LU Wen-bo,et al.Disturbance of Blasting Excavation on Crack Growth in Rock Slope[J].Journal of Rock Mechanics and Engineering,2015,34(7):1307-1314.
[8]CODEGLIA D,DIXON N,FOWMES G J,et al.Analysis of Acoustic Emission Patterns for Monitoring of Rock Slope Deformation Mechanisms[J].Engineering Geology,2017,219:21-31.
[9]WANG Z F,CHENG W C,WANG Y Q.Investigation into Geohazards During Urbanization Process of Xi'an,China[J].Natural Hazards,2018,92(3):1937-1953.
[10]UCHIMURA T,WANG L,YAMAGUCHI H,et al.Multi-point Monitoring of Unstable Slope with Low Cost Sensor Network[J].Japanese Geotechnical Society Special Publication,2015,1(7):29-33.
[11]SALMI E F,HOSSEINZADEH S.Slope Stability Assessment Using Both Empirical and Numerical Methods:A Case Study[J].Bulletin of Engineering Geology and the Environment,2015,74(1):13-25.
[12]王亚琼,王开运,赖金星,等.隧道洞口滑坡综合治理与监测分析[J].铁道工程学报,2015,32(10):103-108.
WANG Ya-qiong,WANG Kai-yun,LAI Jin-xing,et al.Analysis of Comprehensive Treatment and Monitoring of Landslide at Tunnel Face[J].Journal of Railway Engineering Society,2015,32(10):103-108.
[13]陈 强,韩 军,艾 凯.某高速公路山体边坡变形监测与分析[J].岩石力学与工程学报,2004,23(2):299-302.
CHEN Qiang,HAN Jun,AI Kai.Monitoring and Analysis of Slope Deformation Along a Speedway[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(2):299-302.
[14]宋修广,张思峰,李英勇.路堑高边坡动态监测与分析[J].岩土力学,2005,26(7):1153-1156.
SONG Xiu-guang,ZHANG Si-feng,LI Ying-yong.In-situ Dynamic Monitoring and Analysis of High Slope Stability[J].Rock and Soil Mechanics,2005,26(7):1153-1156.
[15]张金龙,徐卫亚,金海元,等.大型复杂岩质高边坡安全监测与分析[J].岩石力学与工程学报,2009,28(9):1819-1827.
ZHANG Jin-long,XU Wei-ya,JIN Hai-yuan,et al.Safety Monitoring and Stability Analysis of Large-scale and Complicated Rock Slope[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(9):1819-1827.
[16]王大伟,沈 鹏.高速公路改扩建工程路堑高边坡支护机理与效果[J].长安大学学报:自然科学版,2017,37(3):39-46.
WANG Da-wei,SHEN Peng.Support Mechanism and Effect of Cutting High Slope in Expressway Reconstruction and Expansion Projects[J].Journal of Chang'an University:Natural Science Edition,2017,37(3):39-46.
[17]蔡唐涛.降雨条件下路堑高边坡的渗流应力响应分析[J].筑路机械与施工机械化,2018,35(4):54-58.
CAI Tang-tao.Seepage Stress Response of High Cutting Slope Under Rainfall Condition[J].Road Machinery & Construction Mechanization,2018,35(4):54-58.
[18]宋胜武,向柏宇,杨静熙,等.锦屏一级水电站复杂地质条件下坝肩高陡边坡稳定性分析及其加固设计[J].岩石力学与工程学报,2010,29(3):442-458.
SONG Sheng-wu,XIANG Bai-yu,YANG Jing-xi,et al.Stability Analysis and Reinforcement Design of High and Steep Slopes with Complex Geology in Abutment of Jinping Ⅰ Hydropower Station[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(3):442-458.

相似文献/References:

[1]冯忠居,孟莹莹,霍建维,等.改扩建公路岩质高边坡爆破开挖稳定性分析[J].建筑科学与工程学报,2023,40(01):112.[doi:10.19815/j.jace.2021.07118]
　FENG Zhongju,MENG Yingying,HUO Jianwei,et al.Stability analysis of blasting excavation on high rock slope of reconstruction and extension highway[J].Journal of Architecture and Civil Engineering,2023,40(05):112.[doi:10.19815/j.jace.2021.07118]

备注/Memo

备注/Memo:
收稿日期:2019-03-11 基金项目:国家自然科学基金项目(41702287) 作者简介:李 杰(1977-),男,山东济南人,高级工程师,工学博士,E-mail:22436440@qq.com。
更新日期/Last Update: 2019-09-29