نوع مقاله : مقاله کامل پژوهشی
نویسندگان
1 دانشجوی ترم نهم دوره دکتری تخصصی ژئوتکنیک دانشگاه یزد
2 دانشیار، دانشکده مهندسی عمران - بخش ژئوتکنیک و راه
3 دانشیار، دانشکده منابع طبیعی و کویرشناسی - گروه مدیریت مناطق خشک و بیابانی
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Recently, due to many environmental problems and increasing pollutants, new methods that are environmentally friendly and renewable have become the necessities of scientific research. The urease enzymes of this bacterium are very active in converting urea to calcium carbonate. In this study, we also try to use biological improvement in micropiles at the same time. Therefore, we investigated the effect of biological micropiles and reinforced soils with biological improvement in comparison with micropiles with cement grout injection or without injection. We also try to check the degree of compliance of the experimental results with the software model. The results show that the use of biological solution instead of chemical grout and cement has an acceptable effect on increasing the bearing capacity of sandy soil. The use of biological micropiles increases the soil bearing capacity by more than 94%. This ratio is 126 and 55% in the case of cement grout injection and in the case without injection, respectively. Regarding the biological improvement of reinforced soil, similar results are obtained for biological micropiles. Finally, the review of modeling and laboratory results also shows an acceptable agreement between the experimental results and numerical modeling modeled in 3D FLAC software.
کلیدواژه‌ها [English]
)