生物矿化技术在沙漠现场的大规模应用研究  

Research on the Large-scale Application of the Biomineralization Technology in Desert Sites

作　　者：赵旭东 李伟群 尹文华 张易辰 繆林昌 Zhao Xudong;Li Weiqun;Yin Wenhua;Zhang Yichen;Miao Linchang(Ningxia Highway Survey and Design Institute Co.,Ltd.,Yinchuan 750001;Southeast University,Nanjing 211189)

机构地区：[1]宁夏公路勘察设计院有限公司,宁夏银川750001 [2]东南大学,江苏南京211189

出　　处：《中阿科技论坛（中英文）》2022年第2期52-56,共5页China-Arab States Science and Technology Forum

基　　金：宁夏重点研发计划项目资助(2021BEG02017)(2020BFG02014);宁夏交通运输厅科技项目(20200173)。

摘　　要：沙尘暴在世界范围内已被公认为严重的自然灾害。通过对固化后的风积沙的抗风蚀性能进行分析,本文提出了一种可适应不同地形条件和不同风向变化的生物矿化固化方法。实验证明,经过固化后,草方格屏障和低立式防沙带的表面强度更大、固化层更厚、CaCO3含量更大,表面强度随固化层厚度的增加呈指数增长。此外,生物矿化技术提高了固化沙土的抗雨水侵蚀能力,证明生物矿化技术处理对沙尘暴有明显的控制作用,具有良好的防沙治沙潜力。Sandstorms have been recognized as severe natural disasters worldwide.By analyzing the wind erosion resistance of the solidified aeolian sand,a biomineralization solidification method that can adapt to various terrain conditions and different wind directions is proposed.Experiments show that after solidification,the surface strength of the grass checkered barrier and the low vertical sand control belt is greater,the solidified layer is thicker,and the amount of CaCO3 is larger,and the surface strength increases exponentially with the increase of the thickness of the solidified layer.In addition,the biomineralization technology boosts the anti-rain erosion ability of the solidified sand,which proves that the technology has a significant control effect on sandstorms and has great potential for sandstorm prevention and control.

关 键 词：防风沙 生物矿化技术 聚醋酸乙烯 抗风蚀 抗雨水冲刷 

分 类 号：X93[环境科学与工程—安全科学]