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Questions and Answers
What is a common use of jet grouting?
What is a common use of jet grouting?
- To stabilize sinkholes or reduce sinkhole potential
- To increase the bearing capacity of liquefiable soils
- To underpin foundations such as quay walls and heavy structures (correct)
- To construct cemented soil columns in rubble fills
What is a desirable property of grout?
What is a desirable property of grout?
- High viscosity for fine grained soils
- Correct setting time (correct)
- Maximum volume with maximum weight
- Low viscosity for coarse and moderately permeable soils
What factor affects the rate of injection of grout?
What factor affects the rate of injection of grout?
- Grain size distribution of soil
- Viscosity of the grout
- Shear strength of soil
- All of the above (correct)
What is the maximum grouting pressure to avoid disturbing soil particles?
What is the maximum grouting pressure to avoid disturbing soil particles?
What is the purpose of knowing the grain size distribution of soil?
What is the purpose of knowing the grain size distribution of soil?
What type of soil is often treated with displacement grouting?
What type of soil is often treated with displacement grouting?
What is the primary purpose of permeation grouting?
What is the primary purpose of permeation grouting?
What is the common use of displacement – soil fracture grouting in tunneling?
What is the common use of displacement – soil fracture grouting in tunneling?
What is the characteristic of the grout used in displacement – compaction grouting?
What is the characteristic of the grout used in displacement – compaction grouting?
What happens when the grout pressure is greater than the tensile strength of soil or rock in displacement grouting?
What happens when the grout pressure is greater than the tensile strength of soil or rock in displacement grouting?
What is the result of permeation grouting in coarse, granular soils?
What is the result of permeation grouting in coarse, granular soils?
What is the primary difference between displacement – soil fracture grouting and displacement – compaction grouting?
What is the primary difference between displacement – soil fracture grouting and displacement – compaction grouting?
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