|Table of Contents|

Analysis on compaction property of loess by vibrating roller(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年05期
Page:
27-30
Research Field:
Publishing date:
2010-10-20

Info

Title:
Analysis on compaction property of loess by vibrating roller
Author(s):
ZHANG Qing-zhe1;  YANG Ren-feng1;  DAI Jing-liang2
1. Key Laboratory for Highway Construction Technology and Equipment of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
road engineering;  vibrating compaction;  loess;  time domain signal;  frequency domain signal
PACS:
U416.212
DOI:
-
Abstract:
To discover the vibrating compaction mechanism and optimize the working parameters during the vibrating compaction on the loess, the compressive stress signals are studied in the time domain and frequency spectrum. The distribution and transfer law of the compressive stress and the absorption of compaction energy in the loess are analyzed. The results show that the compressive stress of every layers in the loess increases with the increasing of the rolling times, and decreases with the increasing of the depth. At 30 Hz vibratory frequency, the compaction energy working at the loess is more adequate than that of other frequencies. And the compaction effect is the best. The vibratory energy absorbed by every layer decreases with the increasing of the soil density. The top layer can get more energy than the middle and bottom layers, and arrives at the density state firstly. 3 tabs, 7 figs, 8 refs.

References:

[1] 刘祖典.黄土力学与工程[M].西安:陕西科学技术出版社,1997.
[2]沙爱民,陈开圣,马 峰.黄土室内振动压实特性试验[J].长安大学学报:自然科学版,2008,28(1):1-5. SHA Ai-min,CHEN Kai-sheng,MA Feng.Indoor test on physical-mechanical properties of loess under vibration compaction[J].Journal of Chang'an University:Natural Science Edition,2008,28(1):1-5.
[3]陈开圣,沙爱民.黄土压实影响因素分析[J].公路交通科技,2009,26(7):54-58. CHEN Kai-sheng,SHA Ai-min.Study of influencing factors of loess compaction[J].Journal of Highway and Transportation Research and Development,2009,26(7):54-58.
[4]景宏君,张 斌.黄土路基强度规律[J].交通运输工程学报,2004,4(2):14-18. JING Hong-jun,ZHANG Bin.Loess subgrade strength law[J].Journal of Traffic and Transportation Engineering,2004,4(2):14-18.
[5]刘小伟,谌文武,梁收运,等.黄土压实的影响因素研究[J].中国沙漠,2004,24(5):657-661. LIU Xiao-wei,CHEN Wen-wu,LIANG Shou-yun,et al.Influencing factors of loess compacting[J].Journal of Desert Research,2004,24(5):657-661.
[6]JTG E40—2007,公路土工试验规程[S].
[7]GB 4478—1995,振动压路机性能试验方法[S].
[8]蔡同俊.黄土路基压实特性研究[D].西安:长安大学,2005.

Memo

Memo:
-
Last Update: 2010-10-20