1. how to select suitable soil as the subgrade material 2.describe the different types of islands used...

60.1K

Verified Solution

Question

Civil Engineering

1. how to select suitable soil as the subgradematerial
2.describe the different types of islands used inchannelizing at grade intersections indicating the principalfunction of each type

Answer & Explanation Solved by verified expert

4.2 Ratings (720 Votes)

1 The selection of suitable soil as the subgrade material can be done by The properties of sub grade material must have Stability Incompressibility Permanency of strength Minimum changes in volume Stability under adverse conditions of weather and ground water Good drainage Ease of compaction Sub grade material is an integral part of the road pavement structure because it provides the support to the pavement from beneath The sub grade material and its properties are very important in the design of pavement structure The function of the sub grade material is to provide adequate support to the pavement and for this the sub grade must possess sufficient stability under adverse climatic and loading conditions It is very important to conduct tests for selection of soil as subgrade material These test includes iShear tests iiBearing tests iiiPenetration tests iShear tests It is usually carried out on relatively small soil samples in the laboratory To find out the strength of soil a number of representative samples from different locations are tested Some of the common known shear tests for soil are direct shear test triaxial compression See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member