聚苯板在渠道衬砌防冻胀中的应用性能评价
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摘要
聚苯乙烯泡沫塑料是中国北方渠道衬砌防冻胀中应用效果较好的一种保温材料,材料性能会随运行时间的长短而发生改变。为了探讨其变化规律,从已运行了27a的聚苯乙烯泡沫塑料板防冻胀渠道中现场采样,并进行了性能检测,结果表明,其绝大多数性能会随着工程运行而减低,其中关键的导热系数升高了60%以上,但吸水率不会超过标准规定值,能够满足工程防冻胀长期使用的要求。
Rigid Extruded Polystyrene Foam Board is a kind of thermal insulation material with good effects when applied in frost heaving prevention of canal lining in the north China,and its performance change with time.In this paper,the performance test of Rigid Extruded Polystyrene Foam Board which has been used for 27 years in northern Shanxi,was carried out,the results indicate that majority of performance indicators decreased along the time,in which the critical coefficient of heat conductivity rose by over 60%,however the water absorption rate will not exceed the standard specified value,and it can meet the requirements of the long-term use of the project to prevent frost heaving.
Rigid Extruded Polystyrene Foam Board is a kind of thermal insulation material with good effects when applied in frost heaving prevention of canal lining in the north China,and its performance change with time.In this paper,the performance test of Rigid Extruded Polystyrene Foam Board which has been used for 27 years in northern Shanxi,was carried out,the results indicate that majority of performance indicators decreased along the time,in which the critical coefficient of heat conductivity rose by over 60%,however the water absorption rate will not exceed the standard specified value,and it can meet the requirements of the long-term use of the project to prevent frost heaving.
引文
[1]中华人民共和国水利部.中国年水资源公报(2010)[M].北京:中国水利水电出版社,2011.
[2]何武全,刘群昌.我国渠道衬砌与防渗技术发展现状与趋势[J].中国农村水利水电,2009(6):3-6.
[3]钟玲,安西良.渠道流量损失及渠系水利用系数的计算方法[J].中国农村水利水,2004(12):27-28.
[4]刘群昌,白美健,江培福,等.高标准农田水利工程建设探讨[J].水利与建筑工程学报,2013,11(1):22-25.
[5]Muhammad A Kram Kahlown,W D Kemper.Reducing waterloosses from channels using linings:costs and benefits in Pakistan[J].Agricultural Water Management,2005,74:67-56.
[6]何武全,张绍强,吉晔,等.季节性冻土地区渠道防渗防冻胀技术与应用模式[J].节水灌溉,2012(16):67-70.
[7]Muhammad A Kram Kahlown,W D Kemper.Reducing waterloosses from channels using linings:costs and benefits in Pakistan[J].Agricultural Water Management.2005,74:67-56.
[8]银英姿,张栋,冯超,等.内蒙古临河地区渠道衬砌工程保温防冻胀试验研究[J].排灌机械工程学报,2016,34(10):868-871.
[9]李爽,王正中.考虑混凝土衬砌板与冻土接触非线性的渠道冻胀数值模拟[J].水利学报,2014,45(4):497.
[10]中华人民共和国住房和城乡建设部.渠道防渗工程技术规范:GB/T 50600-2010[S].北京:中国计划出版社,2010:12-13.
[11]中华人民共和国国家质量监督检验检疫总局.绝热用模塑聚苯乙烯泡沫塑料GB/T 10801.1-2002[S].北京:中国计划出版社,2002:12-13.
[12]银英姿,贾琦,赵强,等.含水量对渠道保温板保温耐久性的影响及保温板厚度设计[J].水利水电技术,2017,48(2):170-174.
[13]Duskov M.Materials research on EPS20and EPS15under representative conditions in pavement structures[J].Geotextiles&Geomembranes,1997,15(1/3):147-181.
[14]姜忻良,伊丁,宣波,等.复合混凝土-石膏墙板接触面抗剪性能试验研究[J].水利与建筑工程学报,2013,11(6):105-110.
[15]赵波,李敬玮,孟川,等.渠道保温材料保温性能演化规律的试验研究[J].中国水利水电科学研究院学报,2017,15(5):354-357.
[16]汪晓鹏,陈启民,张永显,等.建筑用聚苯乙烯泡沫塑料的绝热保温性能测试和分析[J].塑料科技,2009,37(12):65-67.
[2]何武全,刘群昌.我国渠道衬砌与防渗技术发展现状与趋势[J].中国农村水利水电,2009(6):3-6.
[3]钟玲,安西良.渠道流量损失及渠系水利用系数的计算方法[J].中国农村水利水,2004(12):27-28.
[4]刘群昌,白美健,江培福,等.高标准农田水利工程建设探讨[J].水利与建筑工程学报,2013,11(1):22-25.
[5]Muhammad A Kram Kahlown,W D Kemper.Reducing waterloosses from channels using linings:costs and benefits in Pakistan[J].Agricultural Water Management,2005,74:67-56.
[6]何武全,张绍强,吉晔,等.季节性冻土地区渠道防渗防冻胀技术与应用模式[J].节水灌溉,2012(16):67-70.
[7]Muhammad A Kram Kahlown,W D Kemper.Reducing waterloosses from channels using linings:costs and benefits in Pakistan[J].Agricultural Water Management.2005,74:67-56.
[8]银英姿,张栋,冯超,等.内蒙古临河地区渠道衬砌工程保温防冻胀试验研究[J].排灌机械工程学报,2016,34(10):868-871.
[9]李爽,王正中.考虑混凝土衬砌板与冻土接触非线性的渠道冻胀数值模拟[J].水利学报,2014,45(4):497.
[10]中华人民共和国住房和城乡建设部.渠道防渗工程技术规范:GB/T 50600-2010[S].北京:中国计划出版社,2010:12-13.
[11]中华人民共和国国家质量监督检验检疫总局.绝热用模塑聚苯乙烯泡沫塑料GB/T 10801.1-2002[S].北京:中国计划出版社,2002:12-13.
[12]银英姿,贾琦,赵强,等.含水量对渠道保温板保温耐久性的影响及保温板厚度设计[J].水利水电技术,2017,48(2):170-174.
[13]Duskov M.Materials research on EPS20and EPS15under representative conditions in pavement structures[J].Geotextiles&Geomembranes,1997,15(1/3):147-181.
[14]姜忻良,伊丁,宣波,等.复合混凝土-石膏墙板接触面抗剪性能试验研究[J].水利与建筑工程学报,2013,11(6):105-110.
[15]赵波,李敬玮,孟川,等.渠道保温材料保温性能演化规律的试验研究[J].中国水利水电科学研究院学报,2017,15(5):354-357.
[16]汪晓鹏,陈启民,张永显,等.建筑用聚苯乙烯泡沫塑料的绝热保温性能测试和分析[J].塑料科技,2009,37(12):65-67.