Study on Relationship Between Pore Structure and Strength Weakening of Rare Earth Ore Under Seepage
Received date: 2017-01-06
Revised date: 2017-06-22
Online published: 2018-02-12
To obtain the rule of micro-pore structure and strength of remolded rare earth samples during the pure water infiltration process，the experiments of indoor simulated leaching，nuclear magnetic resonance and triaxial compression were carried out.The results showed that the microscopic pores in the sample change from medium pore size to large pore size，and the main strength indexes（cohesion and internal friction angle） decreased sharply with leaching time increased.Comprehensive analysis indicated that the seepage action changes the pore structure of orebody to induce the weakening the strength of orebody，and the change of pore structure is the main inducement of weakening the strength of orebody.
ZHUO Yulong , WANG Xiaojun , CAO Shirong , DENG Shuqiang , LI Yongxin , HAN Jianwen . Study on Relationship Between Pore Structure and Strength Weakening of Rare Earth Ore Under Seepage[J]. Gold Science and Technology, 2017 , 25(5) : 101 -106 . DOI: 10.11872/j.issn.1005-2518.2017.05.101
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