吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (03): 672-0675.

• paper • Previous Articles     Next Articles

Dynamic property of polypropylene fiber improved fly ash soil

LIU Han-bing1, HE Yan1, WEI Hai-bin1, LIU Hao2   

  1. 1.College of Transportation, Jilin University, Changchun 130022,China;2.College of Civial Engineering,Beijing Transportation University,Beijing 100044,China
  • Received:2008-12-12 Online:2010-05-01 Published:2010-05-01

PDF (PC)

641

Abstract:

The dynamic properties of the fly ash soil improved by randomly distributed polypropylene fiber were studied by the dynamic triaxial tests. The test results demonstrated that the dynamic shear strength of the improved fly ash soil is higher than that of the raw fly ash soil, both of them decline with the increase of the load cycle number and increase along with the surrounding pressure. When the surrounding pressure increases, the strength enhancing rate of the improved soil is higher than that of the raw soil. Under higher surrounding pressure, the improving fiber shows larger effect on the strength of the specimen. The effect of dynamic strain εd on the improved soil is lower than that on the raw soil, indicating more stable property of the improved soil. The dynamic modulus Ed declines with the increase of εd. At the same εd, the Ed of the improved soil appears about 20% higher than that of the raw soil. The damping ratio of the improved soil is a little higher than that of the raw soil.

Key words: road engineering, fly ash soil, polypropylene fiber, dynamic property, dynamic tri-axial test

CLC Number: 

  • U414.1
[1] LI Yi,LIU Li-ping,SUN Li-jun. Prediction model on rutting equivalent temperature for asphalt pavement at different depth [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1703-1711.
[2] ZANG Guo-shuai, SUN Li-jun. Method based on inertial point for setting depth to rigid layer [J]. 吉林大学学报(工学版), 2018, 48(4): 1037-1044.
[3] NIAN Teng-fei, LI Ping, LIN Mei. Micro-morphology and gray entropy analysis of asphalt characteristics functional groups and rheological parameters under freeze-thaw cycles [J]. 吉林大学学报(工学版), 2018, 48(4): 1045-1054.
[4] GONG Ya-feng, SHEN Yang-fan, TAN Guo-jin, HAN Chun-peng, HE Yu-long. Unconfined compressive strength of fiber soil with different porosity [J]. 吉林大学学报(工学版), 2018, 48(3): 712-719.
[5] CHENG Yong-chun, BI Hai-peng, MA Gui-rong, GONG Ya-feng, TIAN Zhen-hong, LYU Ze-hua, XU Zhi-shu. Pavement performance of nano materials-basalt fiber compound modified asphalt binder [J]. 吉林大学学报(工学版), 2018, 48(2): 460-465.
[6] ZHANG Yang-peng, WEI Hai-bin, JIA Jiang-kun, CHEN Zhao. Numerical evaluation on application of roadbed with composite cold resistance layer inseasonal frozen area [J]. 吉林大学学报(工学版), 2018, 48(1): 121-126.
[7] JI Wen-yu, LI Wang-wang, GUO Min-long, WANG Jue. Experimentation and calculation methods of prestressed RPC-NC composite beam deflection [J]. 吉林大学学报(工学版), 2018, 48(1): 129-136.
[8] MA Ye, NI Ying-sheng, XU Dong, DIAO Bo. External prestressed strengthening based on analysis of spatial grid model [J]. 吉林大学学报(工学版), 2018, 48(1): 137-147.
[9] LUO Rong, ZENG Zhe, ZHANG De-run, FENG Guang-le, DONG Hua-jun. Moisture stability evaluation of asphalt mixture based on film pressure model of Wilhelmy plate method [J]. 吉林大学学报(工学版), 2017, 47(6): 1753-1759.
[10] NI Ying-sheng, MA Ye, XU Dong, LI Jin-kai. Space mesh analysis method for shear lag effect of cable-stayed bridge with corrugated steel webs [J]. 吉林大学学报(工学版), 2017, 47(5): 1453-1464.
[11] ZHENG Chuan-feng, MA Zhuang, GUO Xue-dong, ZHANG Ting, LYU Dan, Qin Yong. Coupling effect of the macro and micro characteristics of mineral powder on the low-temperature performance of asphalt mortar [J]. 吉林大学学报(工学版), 2017, 47(5): 1465-1471.
[12] YU Tian-lai, ZHENG Bin-shuang, LI Hai-sheng, TANG Ze-rui, ZHAO Yun-peng. Analyses of defects and causes of steel-plastic compound reinforced retaining wall [J]. 吉林大学学报(工学版), 2017, 47(4): 1082-1093.
[13] CAI Yang, FU Wei, TAO Ze-feng, CHEN Kang-wei. Influence analysis of geotextile on reducing traffic induced reflective cracking using extended finite element model [J]. 吉林大学学报(工学版), 2017, 47(3): 765-770.
[14] LIU Han-bing, ZHANG Hu-zhu, WANG Jing. Effect of dehydration on shear strength properties of compacted clayey soil [J]. 吉林大学学报(工学版), 2017, 47(2): 446-451.
[15] CUI Ya-nan, HAN Ji-wei, FENG Lei, LI Jia-di, WANG Le. Microstructure of asphalt under salt freezing cycles [J]. 吉林大学学报(工学版), 2017, 47(2): 452-458.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd