不同颗粒级配透明黏土的固结与渗透特性

doi:10.12068/j.issn.1005-3026.2020.06.020

东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (6): 875-880.DOI: 10.12068/j.issn.1005-3026.2020.06.020

不同颗粒级配透明黏土的固结与渗透特性

武亚军¹，李俊鹏¹，姜海波¹，孔纲强²

(1.上海大学土木工程系，上海200444； 2.河海大学岩土力学与堤坝工程教育部重点实验室，江苏南京210098)

收稿日期:2019-09-19 修回日期:2019-09-19 出版日期:2020-06-15 发布日期:2020-06-12
通讯作者: 武亚军
作者简介:武亚军(1973-)，男，山西太谷人，上海大学教授，博士生导师；孔纲强(1982-)，男，浙江磐安人，河海大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目 (41772303)；上海市自然科学基金资助项目 (17ZR1410100).

Consolidation and Permeability Characteristics of Transparent Clay with Different Grain Composition

WU Ya-jun¹， LI Jun-peng¹， JIANG Hai-bo¹， KONG Gang-qiang²

1.Department of Civil Engineering， Shanghai University， Shanghai 200444， China； 2.Key Laboratory of Geomechanics and Embankment Engineering

Received:2019-09-19 Revised:2019-09-19 Online:2020-06-15 Published:2020-06-12
Contact: WU Ya-jun
About author:-
Supported by:
-

摘要/Abstract

摘要： 为可视化研究黏土固结过程中的内部变形，需要制配与黏性土固结特性变化规律相似的透明黏土.选用无定形硅粉与白矿物油和正十二烷混合液制配出能够模拟黏性土固结的透明黏土，并对不同颗粒级配下的透明黏土进行了渗透试验和压缩固结试验.研究结果表明:透明黏土的e-lgk，C_v-p，E_s-p曲线变化规律与天然黏土相似；并且土体的黏粒含量越高，渗透系数越小，固结系数越小，压缩性越高.透明黏土在固结与渗透变化规律方面与天然黏土的这种相似性，说明了透明黏土用于定性模拟天然黏土固结变形的可行性.

关键词: 透明黏土, 颗粒级配, 固结特性, 渗透特性, 定性模拟

Abstract: In order to visualize the internal deformation of clay during consolidation， transparent clay with similar consolidation characteristics needs to be prepared. A transparent clay which can simulate the consolidation of clay soil was prepared by using amorphous silica powder， the mixture of white mineral oil and n-dodecane. Permeability test and compression consolidation test on transparent clay with different grain composition were carried out. The experimental results show that the e-lgk， C_v-p and E_s-p curves of transparent clay are similar to those of natural clay. The higher the clay content is， the smaller the permeability coefficient is， and the smaller the consolidation coefficient is， the higher the compressibility is. The similarity between transparent clay and natural clay in consolidation and permeability shows the feasibility of using transparent clay to qualitatively simulate the consolidation deformation of natural clay.

Key words: transparent clay, grain composition, consolidation characteristic, permeability characteristic, qualitative simulation

中图分类号:

TU41

武亚军，李俊鹏，姜海波，孔纲强. 不同颗粒级配透明黏土的固结与渗透特性[J]. 东北大学学报:自然科学版, 2020, 41(6): 875-880.

WU Ya-jun， LI Jun-peng， JIANG Hai-bo， KONG Gang-qiang. Consolidation and Permeability Characteristics of Transparent Clay with Different Grain Composition[J]. Journal of Northeastern University Natural Science, 2020, 41(6): 875-880.

参考文献

[1]Iskander M，Bathurst R J，Omidvar M.Past，present，and future of transparent soils［J］.Geotechnical Testing Journal，2015，38(5):557-573.
[2]Sun J，Liu J.Visualization of tunnelling-induced ground movement in transparent sand［J］.Tunnelling and Underground Space Technology，2014，40:236-240.
[3]Yuan B，Sun M，Wang Y，et al.Full 3D displacement measuring system for 3D displacement field of soil around a laterally loaded pile in transparent soil［J］.International Journal of Geomechanics，2019，19(5):04019028.
[4]Wang J，Liu X，Liu S，et al.Physical model test of transparent soil on coupling effect of cut-off wall and pumping wells during foundation pit dewatering［J］.Acta Geotechnica，2019，14(1):141-162.
[5]Zhao H，Yu S，Sang Y，et al.The loading test on the singe pile with pile cap in transparent soil model［J］.Geotechnical Testing Journal，2018，42(2):385-406.
[6]Sui W，Zheng G.An experimental investigation on slope stability under drawdown conditions using transparent soils［J］.Bulletin of Engineering Geology and the Environment，2018，77(3):977-985.
[7]Iskander M G，Lai J，Oswald C J，et al.Development of a transparent material to model the geotechnical properties of soils［J］.Geotechnical Testing Journal，1994，17(4):425-433.
[8]Liu J.Visualization of 3D deformations using transparent “soil” models［D］.New York:Polytechnic University，2003.
[9]宫全美，周俊宏，周顺华，等.透明土强度特性及模拟黏性土的可行性试验［J］.同济大学学报(自然科学版)，2016，44(6):853-860.(Gong Quan-mei，Zhou Jun-hong，Zhou Shun-hua，et al.Strength property and feasibility test of transparent soil to model clayey soil［J］.Journal of Tongji University(Natural Science)，2016，44(6):853-860.)
[10]姜海波，武亚军，孔纲强，等.超软土真空预压透明土模型试验及土桩形成机理［J］.哈尔滨工业大学学报，2020，52(2):33-40.(Jiang Hai-bo，Wu Ya-jun，Kong Gang-qiang，et al.Transparent soil model test of vacuum preloading method on ultra-soft soil and formation mechanism of “soil pile”［J］.Journal of Harbin Institute of Technology，2020，52(2):33-40.)
[11]Salarashayeri A F，Siosemarde M. Prediction of soil hydraulic conductivity from particle-size distribution［J］.World Academic Science Engineering Technology，2012，61:454-458.
[12]中华人民共和国水利部.土工试验规程(SL237—1999)［S］.北京:中国水利水电出版社，1999.(Ministry of Water Resources of the People’s Republic of China.Geotechnical test code (SL237—1999)［S］.Beijing:China Water Conservancy and Hydropower Press，1999.)
[13]Tavenas F，Jean P，Leblond P，et al.The permeability of natural soft clays.Part II:Permeability characteristics［J］.Canadian Geotechnical Journal，1983，20(4):645-660.
[14]Zeng L L，Hong Z S，Cai Y Q，et al.Change of hydraulic conductivity during compression of undisturbedand remolded clays［J］.Applied Clay Science，2011，51(1/2):86-93.
[15]Terzaghi K，Peck R B，Mesri G.Soil mechanics in engineering practice［M］.New York:John Wiley & Sons，1996.
[16]中华人民共和国住房和城乡建设部.建筑地基基础设计规范(GB 50007—2011)［S］.北京:中国建材工业出版社，2011.(Ministry of Housing and Urban Rural Development of the People’s Republic of China.Code for design of building foundation (GB 50007—2011)［S］.Beijing:China Building Materials Industry Press，2011.)
[17]陈婷婷.土的结构性特征对上海黏性土压缩特性的影响［D］.上海:同济大学，2009.(Chen Ting-ting.Effects of soil structural characteristics on compressive properties of Shanghai clay［D］.Shanghai:Tongji University，2009.)
[18]Yin J H.Properties and behaviour of Hong Kong marine deposits with different clay contents［J］.Canadian Geotechnical Journal，1999，36(6):1085-1095.
[19]Kanny K，Jawahar P，Moodley V K.Mechanical and tribological behavior of clay-polypropylene nanocomposites［J］.Journal of Materials Science，2008，43(22):7230-7238.
[20]Olson R E.Settlement of embankment on soft clays［J］.Journal of Geotechnical and Geoenvironmental Engineering，ASCE，1998，124 (4):278-288.
[15]关守平，房少纯.一种新型的区间-粒子群优化算法［J］.东北大学学报(自然科学版)，2012，33(10):1381-1384.(Guan Shou-ping，Fang Shao-chun.A new interval particle swarm optimization algorithm［J］.Journal of Northeastern University(Natural Science)，2012，33(10):1381-1384.)

不同颗粒级配透明黏土的固结与渗透特性

Consolidation and Permeability Characteristics of Transparent Clay with Different Grain Composition

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

本文评价

[1]	刘志彬，刘锋，张书建，白梅. 冻融循环对GCL渗透特性的影响[J]. 东北大学学报:自然科学版, 2020, 41(7): 1027-1032.
[2]	刘旭旺;汪定伟;. 基于定性模拟的分组多属性逆向拍卖评标行为分析[J]. 东北大学学报(自然科学版), 2012, 33(3): 314-317+322.