Please wait a minute...
浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)  2017, Vol. 51 Issue (7): 1278-1283    DOI: 10.3785/j.issn.1008-973X.2017.07.002
Civil Engineering     
Newly developed multifunction device for consolidation, permeability and gas-injection tests
LV Hua-bin, ZHANG Yi-ping, YI Li-da
College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
Download:   PDF(4522KB) HTML
Export: BibTeX | EndNote (RIS)      

Abstract  

A newly multifunction device was proposed to investigate consolidation and permeability of gassy soils, coupled with test of consolidation, permeability and gas-injection experiment. The device was easily assembled to accomodate a wide variety of the tests without limitation or drawback of water-gas separation and sealing. Test reliability of the device was validated by the test implemented in consolidation and permeability measurement of saturated soils, which indicated that the new device experimental results accorded with the conventional device. For the gas-injection experiments, though with little data available from other experiments regarding the comparison, scientifically sound data with regularity was obtained, proving feasible in application of the device. Technically as a fresh approach to investigate both the consolidation and permeability of gassy soils, the device in this special issue may be applied to the research of bubbles transport process in soils.

Received: 28 October 2016      Published: 08 July 2017
CLC:  TU442  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Cite this article:

LV Hua-bin, ZHANG Yi-ping, YI Li-da. Newly developed multifunction device for consolidation, permeability and gas-injection tests. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(7): 1278-1283.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2017.07.002     OR     http://www.zjujournals.com/eng/Y2017/V51/I7/1278


固结-渗透-注气联合试验装置的研制

为了研究含气土的固结渗透特性，在前人的基础上研制了固结-渗透-注气联合试验装置.该装置克服了水气分离和密封两大难题，具有结构简单、应用范围广等特点.为了检验该试验装置的可行性，利用该装置进行饱和土的固结和渗透试验，表明该装置与传统装置的试验结果具有较好的一致性.利用该装置进行注气试验，虽然目前注气试验尚无其他同类试验资料作对比，但试验的结果规律性较好，由此可以判断所研制的试验装置是合理可行的.研制的试验装置有望在研究含气土的固结渗透特性方面发挥作用，也可以用于研究气泡在土体中的运移特性.

[1] SOBKOWICZ J C, MORGENSTERN N R. The undrained equilibrium behaviour of gassy sediments [J]. Canadian Geotechnical Journal, 1984, 21(3): 439-449.
[2] SILLS G C, WHEELER S J, THOMAS S D, et al. Behaviour of offshore soils containing gas-bubbles [J]. Geotechnique, 1991, 41(2): 227-241.
[3] ANDERSON A L, ABEGG F, HAWKINS J A, et al. Bubble populations and acoustic interaction with the gassy floor of Eckernforde Bay [J]. Continental Shelf Res, 1998, 18(18): 1807-1838.
[4] BOUDREAU B P. The physics of bubbles in surficial, soft, cohesive sediments [J]. Marine and PetroleumGeology, 2012, 38(1): 1-18.
[5] JOYCE J, JEWELL P W. Physical controls on methane ebullition from reservoirs and lakes [J]. Environmental and Engineering Geoscience, 2003, 9(2): 167-178.
[6] LOU Z, BILITEWSKI B, ZHU N, et al. Greenhouse gas emission and its potential mitigation process from the waste sector in a large-scale exhibition [J]. Journal of Environmental Sciences, 2015, 31(5): 44-50.
[8] 马小飞.垃圾填埋场抽气试验及填埋气收集量评估方法[D].杭州: 浙江大学, 2013. MA Xiao-fei. Extraction test and evaluation method of landfill gas for municipal solid waste landfills [D]. Hangzhou: Zhejiang University, 2013.
[9] VISSCHER A D, CLEEMPUT V O. Simulation model for gas diffusion and methane oxidation in landfill cover soils [J]. Waste Management, 2003, 23(7): 581-591.
[10] BARDEN L, PAVLAKIS G. Air and water permeability of compacted unsaturated cohesive soil [J]. Journal of Soil Science, 1971, 22(3): 302-318.
[11] 陈正汉,扈胜霞,孙树国,等.非饱和土固结仪和直剪仪的研制及应用[J].岩土工程学报,2004, 26(3): 161-166. CHEN Zheng-han, HU Sheng-xia, SUN Shu-guo, et al. Development and application of consolidation apparatus and direct shear apparatus for unsaturated soils [J]. Chinese Journal of Geotechnical Engineering, 2004, 26(3): 161-166.
[12] 师旭超,汪稔,胡元育,等.渗透固结试验装置的研制[J].岩石力学与工程学报,2004,23(22): 3891-3895. SHI Xu-chao, WANG Ren, HU Yuan-yu, et al.Development of osmotic oedometer [J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(22): 3891-3895.
[13] 问延煦,施建勇.孔压滞后现象及其对固结系数的影响[J].岩石力学与工程学报, 2005, 24(2): 357-364. WEN Yan-xu, SHI Jian-yong. Delay of pore pressure in oedometer and its effect on determination of coefficient of consolidation [J]. Chinese Journal of RockMechanics and Engineering, 2005, 24(2): 357-364.
[14] 孙丽云,乐金朝,刘忠玉,等.渗透固结试验装置的改进[J].实验力学,2010,25(3): 353-358. SUN Li-yun, LUE Jin-chao, LIU Zhong-yu, et al. The improvement of osmotic oedometer [J]. Journal of Experimental Mechanics, 2010, 25(3): 353-358.
[15] 陈能远,孟庆山,胡小兰.滨海相软土固结—渗透联合测定试验研究[J].工程勘察,2011,39(12): 6-10. CHEN Neng-yuan, MENG Qing-shan, HU Xiao-lan. Experimental study on combined determination of osmosis and consolidation for marine soft soil [J]. Geotechnical Investigation and Surveying, 2011,39(12): 6-10.
[16] 中华人民共和国国家标准.GB/T 50123-1999,土工试验方法标准[S].北京:中国计划出版社, 1999.
[17] FREDLUND D G, RAHARDJO H. Soil mechanics for unsaturated soil [M]. New York: Wiley, 1993: 25.
[18] TAVENAS F, LEBLOND P, JEAN P, et al. The permeability of natural soft clays. Part I: methods of laboratory measurement [J]. Canadian Geotechnical Journal, 1983, 20(20): 629-644.
[19] 谢立权,牛永昌,刘芳,等.真空联合注气降水机理的数值分析[J].地下空间与工程学报,2009,5(2):1590-1593. XIE Li-quan, NIU Yong-chang, LIU Fang, et al. Numerical analysis of vacuum drainage with air injection [J]. Chinese Journal of Underground Space and Engineering, 2009, 5(2): 1590-1593.
No related articles found!