[1]ZHOU Ming-tao,YANG Ping,HU Huan,et al.Experimental Study on Freezing and Thawing Actions of Vegetation-growing Concrete Ecological Base Material[J].Research of Soil and Water Conservation,2013,20(02):282-287.
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Experimental Study on Freezing and Thawing Actions of Vegetation-growing Concrete Ecological Base Material
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 02
Page number:
282-287
Column:
Public date:
2013-04-28
- Title:
- Experimental Study on Freezing and Thawing Actions of Vegetation-growing Concrete Ecological Base Material
- Keywords:
- water content; freezing end temperature; thawing temperature; plant generate; vegetation-growing concrete
- CLC:
- TU443
- DOI:
- -
- Abstract:
- As the experimental research object, the vegetation-growing concrete ecological base material was taken to study its freezing and thawing actions caused by freezing end temperature, water content, soil type and thawing temperature. The results showed that the sequence of influence factors on the vegetation-growing concrete freezing and thawing actions from strong to weak level was soil type, water content, freezing end temperature and thawing temperature. The frost heave ratio and thawing settlement coefficient of the vegetation-growing concrete increased significantly with the rise of freezing end temperature or water content. Under the same conditions, the freezing and thawing actions of the vegetation-growing concrete composed with clay is more sensitive than that composed with sand. The impact of thawing temperature on the vegetation-growing concrete thawing settlement coefficient was very weak, and it was no rules to be observed. There were little changes in volume after a complete process of frost heave and thawing settlement, while the durability of the vegetation-growing concrete was mainly revealed through the internal microstructure. The comprehensive prediction models set up with freezing end temperature and water content had good fitting degree, which may effectively predict distortions when the vegetation-growing concrete was exposed to the condition of frost heave and thawing settlement.
- References:
-
[1] Everett D H. The thermodynamics of frost damage to porous solids[J]. Trans. Faraday Soc.,1961,57:1541-1551.
[2] 齐吉琳.张建明.朱元林.冻融作用对土结构性影响的土力学意义[J].岩石力学与工程学报,2003,22(增2):2690-2694.
[3] 谭丽华.水泥改良土冻胀融沉特性研究[D].上海:同济大学,2008.
[4] 张以晨,李欣,张喜发,等.季冻区公路路基粗粒土的冻胀敏感性及分类研究[J].岩土工程学报,2007,29(10):1522-1526.
[5] 苏群,杨扬.PAMCATS固化土强度及抗冻性能研究[J].黑龙江工程学院学报:自然科学版,2008,22(4):1-3.
[6] 穆彦虎,马巍,李国玉,等.冻融作用对压实黄土结构影响的微观定量研究[J].岩土工程学报,2011,33(12):1919-1925.
[7] 王效宾,杨平,王海波,等.冻融作用对黏土力学性能影响的试验研究[J].岩土工程学报,2009,31(11):1768-1772.
[8] 徐华.高寒高海拔地区生态护坡基材及其在岩质边坡中的应用研究[D].成都:成都理工大学,2006.
[9] 许文年,夏振尧,周明涛,等.植被混凝土生态防护技术理论与实践[M].北京:中国水利水电出版,2012.
[10] 张婷.人工冻土冻胀、融沉特性试验研究[D].南京:南京林业大学,2004.
[11] 中华人民共和国国家标准.建筑地基基础设计规范(GB50007-2011)[S].北京:中国建筑工业出版社,2012.
[12] 中华人民共和国国家标准.土工试验方法标准(GB/T50123-1999)[S].北京:中国水利水电出版社,1999.
[13] 王家澄,徐学祖,张立新,等.温度和压力条件对正冻土中成冰过程和冷生组构的影响[J].冰川冻土,1995,17(3):250-257.
[14] 李洪升,张斌,刘增利,等.一维冻结土体冻胀量的水热力耦合计算[J].大连理工大学学报,1999,39(5):621-624.
[15] Eigenbrod D. Pore-water pressures in freezing and thawing fine-grained soils[J]. Journal of Cold Regions Engineering,1996,10(2):77-92.
[16] Webster R. Statistics to support soil research and their presentation[J]. European Journal of Soil Science,2001,52(2):331-340.
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