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Method for reinforcing and solidifying loess by combining polypropylene fiber (BF) and wool fiber (WF) based on soybean urease induced calcium carbonate deposition (EICP)
The invention discloses a method for reinforcing and solidifying loess by combining polypropylene fiber (BF) and wool fiber (WF) based on soybean urease induced calcium carbonate deposition (EICP). The method comprises the following steps: extracting soybean urease and preparing a cementing liquid; the EICP and fiber reinforcement method is combined to achieve the toughening effect through the friction and anchoring effect between fibers and soil particles, loess reinforcement solidification is conducted, the strength of the solidified soil body is improved, and brittle failure of the soil body is prevented; a test on the reinforced soil body through a static triaxial shear strength test shows that the fragility index of the reinforced EICP solidified loess is reduced, the ductility is enhanced, the problem of brittle failure generated after the EICP solidifies the loess is solved, and a new way is provided for researching the loess solidification method.
一种基于大豆脲酶诱导碳酸钙沉积(EICP)的联合聚丙烯纤维(BF)和羊毛纤维(WF)加筋固化黄土方法，通过提取大豆脲酶及配制胶结液；结合EICP与纤维加筋方法通过纤维与土颗粒间的摩擦与锚固作用来达到增韧作用，进行黄土加筋固化，有助于提高固化土体的强度并防止其脆性破坏；通过静三轴抗剪强度试验对加固后土体进行测试，表明，本发明加筋的EICP固化黄土脆性指数降低，延性增强，解决了EICP在固化黄土后产生的脆性破坏问题，为研究黄土固化方法提供了一种新的途径。
Method for reinforcing and solidifying loess by combining polypropylene fiber (BF) and wool fiber (WF) based on soybean urease induced calcium carbonate deposition (EICP)
The invention discloses a method for reinforcing and solidifying loess by combining polypropylene fiber (BF) and wool fiber (WF) based on soybean urease induced calcium carbonate deposition (EICP). The method comprises the following steps: extracting soybean urease and preparing a cementing liquid; the EICP and fiber reinforcement method is combined to achieve the toughening effect through the friction and anchoring effect between fibers and soil particles, loess reinforcement solidification is conducted, the strength of the solidified soil body is improved, and brittle failure of the soil body is prevented; a test on the reinforced soil body through a static triaxial shear strength test shows that the fragility index of the reinforced EICP solidified loess is reduced, the ductility is enhanced, the problem of brittle failure generated after the EICP solidifies the loess is solved, and a new way is provided for researching the loess solidification method.
一种基于大豆脲酶诱导碳酸钙沉积(EICP)的联合聚丙烯纤维(BF)和羊毛纤维(WF)加筋固化黄土方法，通过提取大豆脲酶及配制胶结液；结合EICP与纤维加筋方法通过纤维与土颗粒间的摩擦与锚固作用来达到增韧作用，进行黄土加筋固化，有助于提高固化土体的强度并防止其脆性破坏；通过静三轴抗剪强度试验对加固后土体进行测试，表明，本发明加筋的EICP固化黄土脆性指数降低，延性增强，解决了EICP在固化黄土后产生的脆性破坏问题，为研究黄土固化方法提供了一种新的途径。
Method for reinforcing and solidifying loess by combining polypropylene fiber (BF) and wool fiber (WF) based on soybean urease induced calcium carbonate deposition (EICP)
基于大豆脲酶诱导碳酸钙沉积（EICP）的联合聚丙烯纤维（BF）和羊毛纤维（WF）加筋固化黄土方法
LI GANG (author) / QU JING (author) / LIU QIE (author) / KOU HONGGANG (author) / XI YU (author) / CHEN CHONGKUN (author)
2024-08-13
Patent
Electronic Resource
Chinese
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