期刊论文

Experimental Study on Improving Unconfined Compressive Strength of Red Sandstone Rockfill by Microorganism Induced Calcium Carbonate Precipitation

中文

南华大学学报(自然科学版)

1673-0062

2023

37

01

40-46

10.19431/j.cnki.1673-0062.2023.01.006

51708273:国家自然科学基金 YK319008:水利部土石坝破坏机理与防控技术重点实验室开放基金 20C1608:湖南省教育厅项目

本校为第一机构

为改善红砂岩堆石料的力学性能,采用巴氏芽孢杆菌诱导碳酸钙沉淀矿化技术加固红砂岩堆石料。对不同含石量的红砂岩堆石料进行无侧限抗压强度试验,并测定土体的抗压强度指标与碳酸钙产量来表征微生物改良堆石料效果,结合扫描电镜分析微生...展开更多 为改善红砂岩堆石料的力学性能,采用巴氏芽孢杆菌诱导碳酸钙沉淀矿化技术加固红砂岩堆石料。对不同含石量的红砂岩堆石料进行无侧限抗压强度试验,并测定土体的抗压强度指标与碳酸钙产量来表征微生物改良堆石料效果,结合扫描电镜分析微生物改良堆石料的微观结构特征。结果表明:巴氏芽孢杆菌诱导碳酸钙沉淀改善红砂岩堆石料的抗压性能效果明显,经过恒...

In order to improve the mechanical properties of red sandstone rockfill,Bacillus pasteurella induced calcium carbonate precipitation mineralization was used to reinforce the red sandstone rockfill.The unconfined compressive strength test was carried out on the red sands...MORE In order to improve the mechanical properties of red sandstone rockfill,Bacillus pasteurella induced calcium carbonate precipitation mineralization was used to reinforce the red sandstone rockfill.The unconfined compressive strength test was carried out on the red sandstone rockfill materials with different rock contents...