Discussion
Swelling ground in a tunnel arises where the rock contains
Answer: A
Correct answer: montmorillonite or anhydrite
Both take up water and expand. Montmorillonite is the swelling clay mineral of smectite clays and shales, and anhydrite hydrates to gypsum with a large volume increase. Either can generate pressures capable of destroying a rigid lining, so swelling ground is dealt with either by a yielding support or by keeping water away from it.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development