Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


newbie question on earthwork

newbie question on earthwork

newbie question on earthwork

Hi all,
I am new to earthwork & my questions are as follows:-
1) What are the tests & measures required for monitoring earthwork?
These are the steps taken in a job I supervised; before carrying out any work, tests are conducted from extracted samples at the borrow source to determine namely, the particle sizes by means of gradation tests, moisture content to determine if the soil may be compacted or not, bulk & dry & bulk desnity, & organic content tests if necessary.
Field survey is conducted to ensure the spot levels on site tally with the construction plans & to peg out the construction limit.
Site clearance of minimum 300mm is done to remove the top soil, unsuitable & vegetation.
Spot levels are then recorded before earthfilling starts.
A trial lay and compaction is done by laying 9 to 14 inch earth and then compact to 6 inch. Field density test is then carry out to ensure the compaction reaches 95% MDD. Work is then carry out in subdivided areas. Temporary drains are constructed to make sure ther's proper discharge during rain. Field density is carried out after every layer of compaction. Spot survey and insitu CBR tests are conducted when job is completed followed by turfing if the embankment fill is high (6m) or if the area is susceeptible to rain.
The FDTs are done in every 50 square meters.  I took 3 samples from the source for every 500 trips. The site is about 100 acres & the source is about 10 km away.

2) As a rule of thumb, earthfilled embankments have slopes ranging from 1:1.5 to 1:3; how do these values come about? what are the tests and design parameters required for the design of the slope?



Violence is never an option to resolve any conflict; hatred will never heal any wound.  


Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


White Paper - The Criticality of the E/E Architecture
Modern vehicles are highly sophisticated systems incorporating electrical, electronic, software and mechanical components. Mechanical systems are giving way to advanced software and electronic devices, driving automakers to innovate and differentiate their vehicles via the electric and electronic (E/E) architecture. As the pace of change accelerates, automotive companies need to evolve their development processes to deliver and maximize the value of these architectures. Download Now
White Paper - Model Based Engineering for Wire Harness Manufacturing
Modern cars, trucks, and other vehicles feature an ever-increasing number of sophisticated electrical and electronic features, placing a larger burden on the wiring harness that enables these new features. As complexity rises, current harness manufacturing methods are struggling to keep pace due to manual data exchanges and the inability to capture tribal knowledge. A model-based wire harness manufacturing engineering flow automates data exchange and captures tribal knowledge through design rules to help harness manufacturers improve harness quality and boost efficiency. Download Now
White Paper - Modeling and Optimizing Wire Harness Costs for Variation Complexity
This paper will focus on the quantification of the complexity related costs in harness variations in order to model them, allowing automated algorithms to optimize for these costs. A number of real world examples will be provided as well. Since no two businesses are alike, it is the aim of this paper to provide the foundational knowledge and methodology so the reader can assess their own business to model how variation complexity costs affect their business. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close