Research Article

The Research on Strength and Deformation Behaviors of Buffer/Backfill Material under High-Temperature and High-Pressure Conditions

Table 5

The parameters’ value under different dry densities and temperatures.

(g/cm3)T (°C)Parameter AParameter BParameter CParameter K1Parameter K2Parameter K3Parameter K4

1.420°C296.5911.49−0.44260.201.7711.580.47
50°C347.0211.79−0.47
80°C402.9911.46−0.50

1.620°C357.1429.97−1.06319.651.9229.761.06
50°C418.0729.18−1.03
80°C472.7330.14−1.09

1.820°C870.21125.40−4.921022.22−7.93126.174.71
50°C612.24127.30−4.76
80°C394.21125.82−4.44