Please wait a minute...
J4  2012, Vol. 46 Issue (2): 243-249    DOI: 10.3785/j.issn.1008-973X.2012.02.010
土木工程     
抗滑桩内力的BOTDR监测分析
刘永莉1,2, 孙红月3, 于洋1, 詹伟1, 尚岳全1
1.  浙江大学 土木工程系,浙江 杭州 310027;2. 中国科学院 武汉岩土力学研究所岩土力学与工程国家重点实验室,
湖北 武汉 430071;3. 浙江大学 海洋科学与工程学系,浙江 杭州 310027
BOTDR monitoring analysis of anti-sliding pile internal force
LIU Yong-li1,2, SUN Hong-yue3, YU Yang1, ZHAN Wei1, SHANG Yue-quan1
1. Department of Civil Engineering ,Zhejiang University, Hangzhou 310027 ,China;2.State Key Laboratory of
Geomechnics Engineering, Institute of Rock and Soil Mechanics,Chinese Academy of Science,Wuhan 430071,
China; 3. Department of Ocean Science and Engineering,Zhejiang University, Hangzhou 310027 ,China
 全文: PDF  HTML
摘要:

为了获取抗滑桩的内力分布数据及客观评价抗滑桩工作状态,通过在抗滑桩上布置光纤传感器,对抗滑桩进行桩身应变监测.研究结果表明:该种测量方法实现从抗滑桩浇注完成至滑坡推力作用整个过程的应变变化过程的监测,成功采集到抗滑桩受力过程中桩身任意深度处的应变;抗滑桩浇注完成后,由于混凝土凝固,首先有一个桩身收缩的过程,达到稳定的时间约4个月;选取桩身收缩应变完成点作为计算初值,再依据钢筋混凝土构件计算理论,对抗滑桩的轴向应力进行计算分析,得出抗滑桩目前的安全状态评价结论.

Abstract:

In order to get the internal force distribution data of anti-sliding piles and evaluate their working state,distributed optic fiber sensing technique was used in landslide engineering monitoring strains of anti-sliding piles. Research results show that the process of strain variation from pile casting to push acting on pile is monitored; The strain in arbitrary depth of anti-sliding pile body is successful collected. Strain variation of anti-sliding pile because of the shrinkage of concrete achieves stable time about 4 months. Selecting the strain of the stable time as an initial value, according to the calculation theory of reinforced concrete, antisliding pile axial stress is computed and the current state of the safety evaluation of anti-sliding pile is obtained.

出版日期: 2012-03-20
:  TU 411  
基金资助:

国家自然科学基金资助项目(40972187).

通讯作者: 孙红月,女,副教授。     E-mail: shy@zju.edu.cn
作者简介: 刘永莉(1984—),女,博士生,从事分布式光纤传感技术在土木工程中的应用研究。E-mail:maryroseli@126com
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  

引用本文:

刘永莉, 孙红月, 于洋, 詹伟, 尚岳全. 抗滑桩内力的BOTDR监测分析[J]. J4, 2012, 46(2): 243-249.

LIU Yong-li, SUN Hong-yue, YU Yang, ZHAN Wei, SHANG Yue-quan. BOTDR monitoring analysis of anti-sliding pile internal force. J4, 2012, 46(2): 243-249.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2012.02.010        http://www.zjujournals.com/eng/CN/Y2012/V46/I2/243

[1] 铁道部第二勘测设计院.抗滑桩设计与计算[M].北京:中国铁道出版社,1983: 2-13.
[2] 郑颖人,陈祖煜,王恭先,等.边坡与滑坡工程治理[M].北京:人民交通出版社,2007: 394-397.
[3] 沈强,陈从新,汪稔,等.边坡抗滑桩加固效果监测分析[J].岩石力学与工程学报,2005,24(6): 934-938.
SHEN Qiang,CHEN Congxin, WANG Ren,et al.Monitoring and analysis of reinforcement effect on slope antislide piles [J].Chinese Journal of Rock Mechanics and Engineering, 2005,24(6): 934-938.
[4] 任伟中,陈浩,唐新建,等.运用钻孔测斜仪监测滑坡抗滑桩变形受力状态研究[J].岩石力学与工程学报,2008,27(增刊2): 3667-3672.
REN Weizhong, CHEN Hao, TANG Xinjian, et al. Study on monitoring of deformation and stree state of landslide antislide piles using borehole inclinometer [J]. Chinese Journal of Rock Mechanics and Engineering, 2008,27(Supp.2): 3667-3672.
[5] 韩艳芬,赵蔚东,杨昌键,等.八尺门滑坡锚索抗滑桩施工与监测 [C]∥中国岩石力学与工程学会第七次学术大会论文集.西安:中国科学技术出版社,2002: 807-809.
HAN Yanfen, ZHAO Weidong,YANG Changjian,et al.Constructing and monitoring of antislide piles with anchor cables on Bachimen landslide [C]∥ In: Chinese Society of Rock Mechanics and Engineering, Academic Conference Proceedings Seventh. Xi’ an: China Science and Technology Press, 2002: 807-809.
[6] 阮波,李亮,刘宝琛,等.浒家洞滑坡治理工程监测分析[J].岩石力学与工程学报,2005,24(8): 1445-1449.
RUAN Bo,LI Liang,LIU Baochen,et al. Analysis on deformation monitoring and tendency of Xujiadong landslide [J]. Chinese Journal of Rock Mechanics and Engineering,2005,24(8): 1445-1449.
[7] 申永江,孙红月,尚岳全,等.基于测斜数据的抗滑桩工作状态的评价[J].岩石力学与工程学报,2009,28(A02)3591-3596.
SHEN Yongjiang, SUN Hongyue, SHANG Yuequan, et al. Evaluation of state of antislide piles based on inclinometer data [J]. Chinese Journal of Rock Mechanics and Engineering,2009,28(A02): 3591-3596.
[8] 申永江,孙红月,尚岳全,等.抗滑桩内力的监测与计算[J].水文地质工程地质,2009,36(5): 18-22.
SHEN Yongjiang, SUN Hongyue, SHANG Yuequan, et al. Monitoring and calculation of antislide piles internal force [J]. Hydrogeology and Engineering Geology, 2009,36(5): 18-22.
[9] 戴自航,沈蒲生,彭振斌.弹性抗滑桩内力计算新模式及其有限差分解法[J].土木工程学报,2003,36 (4) : 99-104.
DAI Zihang,SHEN Pusheng,PENG Zhenbin. A new mode for calculating internal forces of stabilizing pile [J]. China Civil Engineering Journal,2003,36(4): 99-104.
[10] 聂文波,张利洁,胡江运.滑坡治理中抗滑桩设计推力计算探讨[J].岩石力学与工程学报,2004,23 (增刊2): 5050-5052.
NIE Wenbo, ZHANG Lijie, HU Jiangyun.Study on designed thrust of antislide pile [J].Chinese Journal of Rock Mechanics and Engineering,2004,23 (Supp.2): 5050-5052.
[11] 宋从军,周德培,肖世国.岩石高边坡埋入式抗滑桩的内力计算[J].岩石力学与工程学报,2005,24(1): 105-109.
SONG Congjun,ZHOU Depei,XIAO Shiguo.Calculation of internal force of embedded antislide pile in high rock slope [J].Chinese Journal of Rock Mechanics and Engineering,2005,24 (1): 105-109.
[12] 张丹,施斌,徐洪钟,等.BOTDR 用于钢筋混凝土 T 型梁变形监测的试验研究[J].东南大学学报:自然科学版,2004,34(4): 480-484.
ZHANG Dan,SHI Bin,XU Hongzhong,et al. Experimental study on the deformation monitoring of reinforced concrete Tbeam using BOTDR [J]. Journal of Southeast University: Natural Science,2004,34(4): 480-484.
[13] 施斌,张巍,王宝军.预制桩损伤分布式光纤检测方法和系统: 中国, 200610086082.1[P].2007-01-24.
SHI Bin, ZHANG Wei, WANG Baojun. Prefabricated pile test method and systems with distributing optical fiber sensing: China, 200610086082.1[P]. 2007-01-24.
[14] 张俊义,晏鄂川,薛星桥,等.BOTDR技术在三峡库区崩滑灾害监测中的应用分析[J].地球与环境,2005,33(增刊): 355-358.
ZHANG JunYi,YAN EChuan, XUE XingQiao, et al. The application of BOTDR on geological hazards monitoring in three Gorges [J]. Earth and Environment, 2005, 33(supplement): 355-358.
[15] 李世海,魏作安,张俊红,等.光纤光栅传感技术在抗滑桩模型实验中的应用[J].传感器与微系统,2006,25(3): 84-88.
LI Shihai, WEI Zhuoan, ZHANG Junhong, et al. Application of fiber grating sensing technology in model [J]. Transducer and Microsystem Technologies, 2006,25(3): 84-88.
[16] 魏广庆,施斌,余小奎,等.BOTDR分布式检测技术在复杂地层钻孔灌注桩测试中的应用研究[J].工程地质学报,2008,16(6): 826-832.
WEI Guangqing,SHI Bin,YU Xiaokui,et al. Botdr based distributed strain test on bored pile buried in complicated geological ground [J]. Journal of Engineering Geology,2008,16(6): 826-832.
[17] 高俊启,施斌,张巍,等.BOTDR检测钢筋混凝土梁分布式应变的试验研究[J].土木工程学报,2005,38(9): 74-79.
GAO Junqi, Shi Bin, Zhang Wei,et al. An experimental study for measuring the distributed strain of reinforced concrete beam using botdr [J].China Civil Engineering Journal,2005,38(9): 74-79.
[18] 施斌,徐洪钟,张丹,等.BOTDR应变监测技术应用在大型基础工程健康诊断中的可行性研究[J].岩土力学与工程学报,2004,23(3): 493-499.
SHI Bin,Xu Hongzhong,Zhang Dan,et al.Feasibility Study on Application of BOTDR to Health Monitoring for large Infrustructure Engineering [J].Chinese Journal of Rock Mechanics and Engineering,2004,23(3): 493-499.
[19] 隋海波,施斌,张丹,等.边坡工程分布式光纤监测技术研究[J].岩土力学与工程学报,2008,22(增刊2): 3725-3731.
SUI Haibo, SHI bin, ZHANG Dan, et al. Study on distributed optical fiber sensor—based monitoring for slope engineering [J]. Chinese Journal of Rock Mechanics and Engineering,2008,22(supp. 2): 3725-3731.
[20] 葛捷.分布式布里渊光纤传感技术在海堤沉降监测中的应用[J].岩土力学,2009,30(6): 1856-1860.
GE Jie. Application of BOTDR to monitoring sea dyke subsidence [J].Rock and soil Mechanics, 2009,30(6): 1856-1860.
[21] 时旭东,过镇海.钢筋混凝土结构的温度场[J].工程力学, 1996,13(1): 35-43.
HI Xudong, GUO Zhenhai. Analysis of the temperature field of reinforced concrete structure [J]. Journal of Engineering Mechanics, 1996,13(1): 35-43.
[22] 李悦,谈慕华,张雄,等.混凝土的自收缩及其研究进展[J].建筑材料学报,2000,3(3): 252-257.
LI Yue,TAN Muhua,ZHANG Xiong,et al.Autogenous shrinkage of concrete and its research progress [J].Journal of building Materials,2000,3(3): 252-257.
[23] 舒士霖.钢筋混凝土结构[M].杭州:浙江大学出版社,1996: 82-84.

[1] 刘长殿, 孙红月, 康剑伟, 杜丽丽. 土体的充气阻渗试验[J]. J4, 2014, 48(2): 236-241.
[2] 柯瀚,王文芳,魏长春,陈云敏,詹良通. 填埋体饱和渗透系数影响因素室内研究[J]. J4, 2013, 47(7): 1164-1170.
[3] 王林涛,龚国芳,施虎,刘怀印. 基于盾构密封舱压力直接反馈地表变形控制[J]. J4, 2012, 46(7): 1182-1188.
[4] 刘永莉,孙红月,于洋,詹伟,尚岳全. 基于BOTDR监测技术抗滑桩上滑坡推力确定[J]. J4, 2012, 46(5): 798-803.
[5] 徐日庆,张俊,朱剑锋, 王兴陈. 考虑扰动影响的修正Duncan-Chang模型[J]. J4, 2012, 46(1): 1-7.
[6] 周建, 郑鸿镔, 温晓贵, 管林波, 邓以亮. 考虑中主应力系数影响的主应力轴旋转下
原状软黏土变形研究
[J]. J4, 2011, 45(12): 2134-2141.
[7] 陈国红, 谢康和, 程永峰, 徐妍. 考虑涂抹区渗透系数变化的砂井地基固结解[J]. J4, 2011, 45(4): 665-670.
[8] 施虎,龚国芳,杨华勇,汪慧. 盾构掘进机推进力计算模型[J]. J4, 2011, 45(1): 126-131.