Question:
In the freezing method of shaft sinking, the cooling liquid used for circulation is
In the freezing method of shaft sinking, the cooling liquid used for circulation is
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Ground freezing commonly uses
\[
\boxed{\text{Calcium chloride (CaCl}_2\text{) brine}}
\]
as the cooling medium because of its low freezing point.
Updated On: Jul 14, 2026
- HCl
- HNO\(_3\)
- CaCl\(_2\)
- NaCl
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Recall the shaft freezing method.
In the artificial ground-freezing method, a refrigerant is circulated through freeze pipes to freeze the surrounding water-bearing ground.
Step 2: Identify the commonly used coolant. A chilled calcium chloride (\(\mathrm{CaCl_2}\)) brine is commonly used as the circulating cooling liquid. Hence, \[ \boxed{\mathrm{CaCl_2}} \] is the correct answer. Therefore, \[ \boxed{(C)} \] is the correct answer.
Step 2: Identify the commonly used coolant. A chilled calcium chloride (\(\mathrm{CaCl_2}\)) brine is commonly used as the circulating cooling liquid. Hence, \[ \boxed{\mathrm{CaCl_2}} \] is the correct answer. Therefore, \[ \boxed{(C)} \] is the correct answer.
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