›› 2009, Vol. 30 ›› Issue (6): 1856-1860.

• Testing Technology • Previous Articles     Next Articles

Application of BOTDR to monitoring sea dyke subsidence

GE Jie   

  1. Shanghai Optoelectronic Sensor Equipment Co., Ltd., Shanghai 200233, China
  • Received:2007-09-21 Online:2009-06-10 Published:2011-03-09

PDF (Chinese)

2757

Abstract:

The importance of long-term on-line monitoring sea dyke subsidence is described. An experimental system, which monitors Shanghai Lingang sea dyke section k3+640 and k3+780 using distributed Brillouin optical fiber sensing technology (BOTDR), is introduced. The monitoring data from optical fiber sensor system and traditional leveling observation are compared; and the position of the largest strain coincides with the position of the load. The subsidence distribution is calculated; and it coincides with on-site load status and the result of leveling observation. The maximum deviation of five in-situ observation points is 94 mm; the average diviation is 39.2 mm.

Key words: BOTDR, distributed monitoring, sea dyke, subsidence monitoring

CLC Number: 

  • TN 29
[1] HOU Gong-yu, XIE Bing-bing, JIANG Yu-sheng, YIN Shu-ya, HAN Yu-chen,. Sawtooth layout technology and principle of fiber used in deformation monitoring of roadway subsidence [J]. , 2017, 38(S1): 96-102.
[2] HOU Gong-yu, XIE Bing-bing, HU Tao, YIN Shu-ya, HAN Yu-chen，. Fiber sheath effect in tunneling monitoring based on BOTDR technology [J]. , 2017, 38(8): 2441-2447.
[3] HOU Gong-yu, XIE Bing-bing, JIANG Yu-sheng, YIN Shu-ya, HAN Yu-chen. Theoretical and experimental study of the relationship between optical fiber strain and settlement of roof based on BOTDR technology [J]. , 2017, 38(5): 1298-1304.
[4] YAN Jun-fan , SHI Bin , CAO Ding-feng , WEI Guang-qing , ZHU Hong-hu，. Experiment study of seepage field monitoring in sandy soil using carbon coated heating optical fiber-based C-DTS [J]. , 2015, 36(2): 430-436.
[5] ZHU You-qun , Zhu Hong-hu , SUN Yi-jie , SHI Bin，. Model experiment study of pipe pile driving into soil using FBG-BOTDA sensing monitoring technology [J]. , 2014, 35(S2): 695-702.
[6] LI Ke，SHI Bin，TANG Chao-sheng，WEI Guang-qing，WANG Bao-jun. Feasibility research on soil deformation monitoring with distributed optical fiber sensing technique [J]. , 2010, 31(6): 1781-1785.
[7] LIU Jie, SHI Bin, ZHANG Dan, SUI Hai-bo, SUO Wen-bin. Experimental study of foundation pit monitoring using BOTDR-based on distributed optical fiber sensor [J]. , 2006, 27(7): 1224-1228.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] MA Qing，ZHAO Jun-hai，WEI Xue-ying. Investigation of rock resistant coefficient in rocks around tunnel based on unified strength theory[J]. , 2009, 30(11): 3393 -3398 .
[2] CUI Kai, CHEN Wen-wu, ZHANG Jing-ke, HAN Wen-feng, LIANG Shou-yun. Relationships between microstructure parameters and wind erosion rate of multivariate layered soil in slope[J]. , 2009, 30(9): 2741 -2746 .
[3] HU Ming-jian, WANG Ren, CHEN Zhong-xue, WANG Zhi-bing. Initiation process simulation of debris deposit based on particle flow code[J]. , 2010, 31(S1): 394 -397 .
[4] ZHANG Jian-xin, LIU Shuang-ju, ZHOU Jia-bin. Analysis of influence of foundation pits excavation unloading by top-down method on engineering structures[J]. , 2010, 31(S2): 218 -223 .
[5] XUE Yun-liang, LI Shu-lin, LIN Feng, XU Hong-bin. Study of damage constitutive model of SFRC considering effect of damage threshold[J]. , 2009, 30(7): 1987 -1992 .
[6] LI Guo-yu，YU Wen-bing，MA Wei，QI Ji-lin，JIN Hui-jun，SHENG Yu. Experimental study of characteristics of frost and salt heaves of saline highway foundation soils in seasonally frozen regions in Gansu Province[J]. , 2009, 30(8): 2276 -2280 .
[7] WANG Liang-qing, P.H.S.W. Kulatilake, TANG Hui-ming, LIANG Ye , WU Qiong ,. Kinematic analyses of sliding and toppling failure of double free face rock mass slopes[J]. , 2011, 32(S1): 72 -77 .
[8] LI Xu, ZHANG Li-min, AO Guo-dong. Variations of pore structure, void ratio, and water content in soil drying process[J]. , 2011, 32(S1): 100 -105 .
[9] JIANG Shi-ping , RUI Xiao-ting , HONG Jun , RONG Bao , LIU Zhi-jun. Dynamic simulation of granular system[J]. , 2011, 32(8): 2529 -2532 .
[10] YAN Zhi-xin , CAO Xiao-hong , ZHANG Liu-ping , ZHANG Hai-dong. Numerical analysis of loess slope dynamic response under earthquake[J]. , 2011, 32(S2): 610 -614 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd