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A platform for research: civil engineering, architecture and urbanism
Construction method for reinforcing loess embankment by combining microbial mineralization and ardealite
A construction method for reinforcing a loess embankment through combination of microbial mineralization and ardealite is disclosed. The method is characterized by comprising the steps (1) adding Sporosarcina pasteurii into a culture medium to prepare a microbial solution, and mixing urea, calcium chloride and water to prepare cementing liquid; (2) uniformly mixing and stirring a material mixture,the microbial solution and water, adding the cementing liquid, and mixing with water to prepare an improved material mixture; and (3) leveling and compacting the original ground, paving a geomembrane, the improved material mixture and a geogrid, paving the last layer of geomembrane on the top surface of the embankment after the embankment is paved, and then paving an embankment roadbed. The method can meet the construction requirements of loess improved embankments of high-grade highways, can consume ardealite, and reduce the occupation of cultivated land. The ardealite improved by microorganisms can solidify harmful elements, so that the environmental pollution is reduced.
一种微生物矿化与磷石膏联合加固黄土路堤的施工方法，其特征是该方法包括：（1）将巴氏芽孢杆菌放入培养基中配制成微生物溶液，将尿素、氯化钙与水混合配制成胶结液；（2）将混合料、微生物溶液和水混合搅拌均匀，再加入胶结液与水混合配制成改良混合料；（3）对原地面进行整平压实，铺设土工膜，改良混合料和土工格栅，在路堤铺设完成后，在路堤顶面铺设最后一层土工膜，然后再铺设路床。该方法可以满足高等级公路黄土改良路堤施工要求，并可消耗磷石膏，减少对耕地的占用。经微生物改良后的磷石膏，可以对有害元素进行固化，降低对环境的污染。
Construction method for reinforcing loess embankment by combining microbial mineralization and ardealite
A construction method for reinforcing a loess embankment through combination of microbial mineralization and ardealite is disclosed. The method is characterized by comprising the steps (1) adding Sporosarcina pasteurii into a culture medium to prepare a microbial solution, and mixing urea, calcium chloride and water to prepare cementing liquid; (2) uniformly mixing and stirring a material mixture,the microbial solution and water, adding the cementing liquid, and mixing with water to prepare an improved material mixture; and (3) leveling and compacting the original ground, paving a geomembrane, the improved material mixture and a geogrid, paving the last layer of geomembrane on the top surface of the embankment after the embankment is paved, and then paving an embankment roadbed. The method can meet the construction requirements of loess improved embankments of high-grade highways, can consume ardealite, and reduce the occupation of cultivated land. The ardealite improved by microorganisms can solidify harmful elements, so that the environmental pollution is reduced.
一种微生物矿化与磷石膏联合加固黄土路堤的施工方法，其特征是该方法包括：（1）将巴氏芽孢杆菌放入培养基中配制成微生物溶液，将尿素、氯化钙与水混合配制成胶结液；（2）将混合料、微生物溶液和水混合搅拌均匀，再加入胶结液与水混合配制成改良混合料；（3）对原地面进行整平压实，铺设土工膜，改良混合料和土工格栅，在路堤铺设完成后，在路堤顶面铺设最后一层土工膜，然后再铺设路床。该方法可以满足高等级公路黄土改良路堤施工要求，并可消耗磷石膏，减少对耕地的占用。经微生物改良后的磷石膏，可以对有害元素进行固化，降低对环境的污染。
Construction method for reinforcing loess embankment by combining microbial mineralization and ardealite
一种微生物矿化与磷石膏联合加固黄土路堤的施工方法
LI ZHIQING (author) / QI SHENGWEN (author)
2020-07-17
Patent
Electronic Resource
Chinese
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