The Impact of Temperature on the Triaxial Compression Characteristics of Cemented Paste Backfill

Authors

  • Pengyung Zhu
  • Zhihong Zhang

DOI:

https://doi.org/10.54097/p928t749

Keywords:

Cemented paste backfill; triaxial compression; temperature ; failure mode.

Abstract

In deep well mining, due to the influence of the surrounding environmental temperature, the mechanical properties of the cemented paste backfill (CPB) will change. Therefore, studying the effect of temperature on the mechanical characteristics of CPB is of great research significance for the safety and stability of the mining stope. This article conducted triaxial compression tests on CPB at different temperatures, studied the effect of temperature on the shear strength characteristics of CPB specimens, and investigated the failure mechanisms and characteristics of CPB. The results show that: (1) The cohesion and internal friction angle of CPB specimens increase with increasing temperature. (2) As the temperature increases, the failure mode of CPB specimens changes from single oblique section shear failure to Y-type failure.

Downloads

Download data is not yet available.

References

Fall M, Benzaazoua M, Ouellet S. Experimental characterization of the influence of tailings fineness and density on the quality of cemented paste backfill[J]. Minerals Engineering, 2005, 18(1): 41-44.

Xu Wenbin, Song Weidong, Dong Xu, et al. Analysis of triaxial compression deformation, failure and energy dissipation characteristics of cemented filling bodies [J]. Rock and Soil Mechanics, 2014, 35(12): 3421-3429.

Deng Xuejie, Liu Hao, Wang Jiachen, et al. Strength requirement of cemented filling body oriented by coal mine goaf compaction rate control [J]. Journal of Coal Science and Engineering, 2022, 47(12): 4250-4264.

Qiao Dengpan, Cheng Weihua, Xie Jincheng, et al. Analysis of the influence of gradation on the strengthof a cemented filling body and the cementation strength model[J]. Integrated Ferroelectrics,2019,199(1):12-21.

Sari Muhammet, Yilmaz Erol, Kasap Tugrul, et al. Strength and microstructure evolution in cementedmine backfill with low and high pH pyritic tailings: Effect of mineral admixtures[J]. Construction and BuildingMaterials,2022,328.

Nie Yalin, Wang Xiaojun, Huang Guangli, et al. Analysis of strength and damage model of pure tailings cemented filling body with different water contents [J]. Journal of the Chinese Ceramic Society, 2018, 37(6): 2008-2013.

Men Ruiying, Zhao Runkang. Simulation and experimental analysis of thermal-mechanical-damage behavior of cemented filling body [J]. Mining Research and Development, 2019, 39(1): 22-27.

Zhihong Z ,Jiacheng L .Experimental Investigation on Strength and Failure Characteristics of Cemented Paste Backfill [J].Frontiers in Materials,2021,8.

Schutter G D, Taerwe L. General hydration model for portland cement and blast furnace slag cement[J]. Cement & Concrete Research, 1995, 25(3): 593-604.

Schutter G D. Hydration and temperature development of concrete made with blast-furnace slag cement[J]. Cement & Concrete Research, 1999, 29(1): 143-149.

Li Kaibing. Study on the mechanical and acoustic emission characteristics of tailings cemented filling body under uniaxial compression affected by temperature (Master's Thesis, Wuhan University of Science and Technology, China, 2019). p.1-94.

Nasir O ,Fall M .Coupling binder hydration, temperature and compressive strength development of underground cemented paste backfill at early ages[J].Tunnelling and Underground Space Technology incorporating Trenchless Technology Research,2009,25(1):9-20.

Xiong Rui. Influence of high temperature on the strength and deformation characteristics of cemented filling body [J]. Mining Technology, 2015, 15(6): 18-21.

Fall M ,Samb S .Effect of high temperature on strength and microstructural properties of cemented paste backfill[J].Fire Safety Journal,2008,44(4):642-651.

Downloads

Published

21-05-2024

Issue

Section

Articles

How to Cite

Zhu, P., & Zhang, Z. (2024). The Impact of Temperature on the Triaxial Compression Characteristics of Cemented Paste Backfill. Academic Journal of Science and Technology, 11(1), 48-52. https://doi.org/10.54097/p928t749