Table 1 Mine water composition.

From: Study on the strength deterioration characteristic and damage model of coal pillar dams with repeated water immersion in underground reservoirs

Test indicators

K+, Na+ (mg L−1)

Ca2+ (mg L−1)

Mg2+ (mg L−1)

Cl− (mg L−1)

SO42− (mg L−1)

HCO3− (mg L−1)

pH (dimensionless)

Test results

20.01–425.96

34.47–55.31

2.43–23.81

4.0–555.0

14.0–100.0

165.97–268.47

7.40–11.66

Back to article page