Injection Performance of Rock Grouting Materials under High-Temperature Conditions

• • Investigation of grout material and injection behavior under high-temperature conditions is essential for deep geological repository construction. 

  • Injection characteristics of grouting materials at varying temperatures were verified.

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• • Thermal-Hydraulic-Mechanical performance evaluation of bentonite-sand backfill considering material and disposal environment 

  • Potential issues during long-term operation of deep geological disposal systems have been investigated

  • Potential compromise of long-term integrity of deep disposal systems due to kaolinite infiltration