A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improvement method of phosphogypsum for expansive soil embankment construction
The invention discloses an improvement method of phosphogypsum for expansive soil embankment construction. The method is characterized in that the method comprises the following steps: (1) preparing an improver from anionic polyacrylamide and potassium chloride; (2) preparing phosphogypsum, coal ash and expansive soil into a mixture; (3) doping the improver and water into the mixture to prepare animproved mixture; (4) paving a geomembrane on the original ground, paving the improved mixture on the geomembrane, paving geogrids once every three layers of improved mixtures, and paving the last layer of geomembrane on the top surface of an embankment after the embankment construction is finished. The method can meet the construction requirements of a high-grade highway expansive soil improvedembankment, can consume the solid waste phosphogypsum, reduces the occupation of cultivated land, reduces the pollution to the environment, and turns waste into wealth.
一种磷石膏用于膨胀土路堤施工的改良方法，其特征是该方法包括：（1）将阴离子聚丙烯酰胺和氯化钾配置成改良剂，（2）将磷石膏、粉煤灰和膨胀土配置成混合料，（3）在混合料中掺入改良剂与水配置成改良混合料，（4）在原地面铺设土工膜，在土工膜上铺设改良混合料，每三层改良混合料铺设一次土工格栅，路堤施工完成后，在路堤顶面铺设最后一层土工膜。该方法可以满足高等级公路膨胀土改良路堤的施工要求，同时可以消耗固体废弃物磷石膏，减少对耕地的占用，降低对环境的污染，变废为宝。
Improvement method of phosphogypsum for expansive soil embankment construction
The invention discloses an improvement method of phosphogypsum for expansive soil embankment construction. The method is characterized in that the method comprises the following steps: (1) preparing an improver from anionic polyacrylamide and potassium chloride; (2) preparing phosphogypsum, coal ash and expansive soil into a mixture; (3) doping the improver and water into the mixture to prepare animproved mixture; (4) paving a geomembrane on the original ground, paving the improved mixture on the geomembrane, paving geogrids once every three layers of improved mixtures, and paving the last layer of geomembrane on the top surface of an embankment after the embankment construction is finished. The method can meet the construction requirements of a high-grade highway expansive soil improvedembankment, can consume the solid waste phosphogypsum, reduces the occupation of cultivated land, reduces the pollution to the environment, and turns waste into wealth.
一种磷石膏用于膨胀土路堤施工的改良方法，其特征是该方法包括：（1）将阴离子聚丙烯酰胺和氯化钾配置成改良剂，（2）将磷石膏、粉煤灰和膨胀土配置成混合料，（3）在混合料中掺入改良剂与水配置成改良混合料，（4）在原地面铺设土工膜，在土工膜上铺设改良混合料，每三层改良混合料铺设一次土工格栅，路堤施工完成后，在路堤顶面铺设最后一层土工膜。该方法可以满足高等级公路膨胀土改良路堤的施工要求，同时可以消耗固体废弃物磷石膏，减少对耕地的占用，降低对环境的污染，变废为宝。
Improvement method of phosphogypsum for expansive soil embankment construction
一种磷石膏用于膨胀土路堤施工的改良方法
LI ZHIQING (author)
2020-07-24
Patent
Electronic Resource
Chinese
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