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A platform for research: civil engineering, architecture and urbanism
Method for reinforcing soil body by combination of organic matter and plant urease
The invention provides a method for reinforcing a soil body by a combination of organic matter and plant urease. The method includes the following steps of firstly, extracting the soybean urease; secondly, mixing the organic matter such as glutinous rice flour, brown sugar or skim milk powder into a solution of soybean urease in proportion; and thirdly, sequentially injecting the organic matter and urease mixed liquid and consolidating fluid into the soil body in certain proportion. According to the method, nucleation point locations are provided for calcium carbonate precipitation by introducing the organic matter into a urease induced calcium carbonate precipitation (EICP) technology so that calcium ions can be concentratedly adsorbed to anion groups provided by the organic mater and large-grained calcium carbonate crystals can aggregate at the nucleation point locations; the growth habit of mineral crystals is affected, the morphology structure of minerals is improved, and the strength of soil body is greatly improved and enhanced; and the activity of the urease is protected, and the calcium carbonate precipitation efficiency under a high concentration is slightly improved. Themethod is efficient, economical, simple in process, friendly to the environment, convenient to popularize and suitable for large-scale treatment.
本发明提供了一种有机物联合植物脲酶加固土体的方法，包括以下步骤：一：大豆脲酶的提取；二：将有机物如糯米粉、红糖或脱脂奶粉按比例掺加至大豆脲酶溶液内；三：将有机物脲酶混合液、胶结液按一定比例依次注入土体；该方法将有机物引入EICP(脲酶诱导碳酸钙沉积)技术，为碳酸钙沉积提供成核点位，使钙离子被集中吸附于有机物所提供的阴离子集团上，以成核点位聚集形成大颗粒碳酸钙晶体；影响矿物晶体生长习性，改善矿物形貌结构，大幅提升加固土体强度；保护脲酶活性，少量提升高浓度下的碳酸钙沉积效率。本发明公开的方法高效经济，工艺便捷，环境友好，便于推广，适合大规模处理。
Method for reinforcing soil body by combination of organic matter and plant urease
The invention provides a method for reinforcing a soil body by a combination of organic matter and plant urease. The method includes the following steps of firstly, extracting the soybean urease; secondly, mixing the organic matter such as glutinous rice flour, brown sugar or skim milk powder into a solution of soybean urease in proportion; and thirdly, sequentially injecting the organic matter and urease mixed liquid and consolidating fluid into the soil body in certain proportion. According to the method, nucleation point locations are provided for calcium carbonate precipitation by introducing the organic matter into a urease induced calcium carbonate precipitation (EICP) technology so that calcium ions can be concentratedly adsorbed to anion groups provided by the organic mater and large-grained calcium carbonate crystals can aggregate at the nucleation point locations; the growth habit of mineral crystals is affected, the morphology structure of minerals is improved, and the strength of soil body is greatly improved and enhanced; and the activity of the urease is protected, and the calcium carbonate precipitation efficiency under a high concentration is slightly improved. Themethod is efficient, economical, simple in process, friendly to the environment, convenient to popularize and suitable for large-scale treatment.
本发明提供了一种有机物联合植物脲酶加固土体的方法，包括以下步骤：一：大豆脲酶的提取；二：将有机物如糯米粉、红糖或脱脂奶粉按比例掺加至大豆脲酶溶液内；三：将有机物脲酶混合液、胶结液按一定比例依次注入土体；该方法将有机物引入EICP(脲酶诱导碳酸钙沉积)技术，为碳酸钙沉积提供成核点位，使钙离子被集中吸附于有机物所提供的阴离子集团上，以成核点位聚集形成大颗粒碳酸钙晶体；影响矿物晶体生长习性，改善矿物形貌结构，大幅提升加固土体强度；保护脲酶活性，少量提升高浓度下的碳酸钙沉积效率。本发明公开的方法高效经济，工艺便捷，环境友好，便于推广，适合大规模处理。
Method for reinforcing soil body by combination of organic matter and plant urease
一种有机物联合植物脲酶加固土体的方法
YUAN HUA (author) / REN GUANZHOU (author) / ZHAO ZHILIANG (author) / YUAN PEI (author) / ZHAO HENGLIANG (author) / YUAN YAONAN (author) / ZHU HONGYUN (author) / LIU KANG (author) / ZHANG JIANWEI (author)
2020-10-27
Patent
Electronic Resource
Chinese
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