文献类型：期刊文献

英文题名：Shearing Performance of Lime-Reinforced Iron Tailing Powder Based on Energy Dissipation

作者：Jiang, Ping[1];Qiu, Lingqi[1];Li, Na[1];Wang, Wei[1];Zhou, Aizhao[2];Xiao, Jingping[3]

机构：[1]Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Zhejiang, Peoples R China;[2]Jiangsu Univ Sci & Technol, Dept Civil & Architecture Engn, Zhenjiang 212003, Jiangsu, Peoples R China;[3]Huahui Engn Design Grp Co Ltd, Shaoxing 312000, Zhejiang, Peoples R China

年份：2018

卷号：2018

外文期刊名：ADVANCES IN CIVIL ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000449162400001)、、Scopus(收录号：2-s2.0-85056118824)、WOS

基金：This work was supported by the National Natural Science Foundation of China (41772311 and 51579199), Zhejiang Provincial Natural Science Foundation of China (LY17E080016), and the Research Fund of Zhejiang Provincial Department of Housing and Urban-Rural Development (2017K179, 2016K130).

语种：英文

外文摘要：The resource utilization of iron tailing powder is an effective measure to reduce the risk of tailing stacking. Based on the research findings on lime soil, a method for using lime to strengthen iron tailing powder was proposed. F-s curves and c and phi values of iron tailing powder with 0%, 2%, 4%, 8%, and 10% lime were obtained through direct shear tests. The back propagation (BP) neural network algorithm was used to fit the F-s curve, and the fitting equation that met the accuracy requirement was obtained. Based on the energy dissipation theory, the shear failure energy dissipation of iron tailing powder with different lime doses was achieved in the form of definite integrals under different normal stresses of 100 kPa, 200 kPa, 300 kPa, and 400 kPa, respectively. It was concluded that the addition of lime could increase the shear energy dissipation of iron tailing powder. The shear energy dissipation of iron tailing powder first increased and then decreased with the increase in lime dose. The maximum value was reached with 4% lime, and the energy dissipation increased linearly with increasing normal stress. In this study, the shear performance of lime-reinforced iron tailing powder was studied through the direct shear test combined with the energy dissipation theory, providing a theoretical basis for the resource utilization of iron tailing powder.