Embankment Fill

Another activity related to Earthworks is Embankment Fill works. Embankment Fill work is filling of suitable material or earth at valley or low ground area up to designated level as per construction drawing.

METHOD OF CONSTRUCTION

1. Materials for filling the embankments shall be suitable materials obtained from approved source or borrow pits.
2. Prior to commencement of filling work, the suitable materials shall be tested for Proctor test, moisture contain test, liquid limit test, plastic limit test, atterberg limits and sieve analysis and the test result should comply to requirement and specification.
3. Trial compaction for embankment fill shall be carried out at designated area of site project to get the rolling compaction pattern.
4. After the rolling compaction pattern accepted by Engineer, the earth filling shall be carried out layer by layer with approximately 300mm thick. The layers shall be compacted by vibro compactor as follow the accepted rolling compaction pattern.
5. All compacted layers shall be tested for Field density test (F.D.T) and the numbers of test point shall be accordance to specification and Engineer's advise.
6. All tests on site or at laboratory will be witnessed by Engineer or client’s representative. They will be notified to witness the test at least a day before. All the test results should be initial by laboratory technician and approved by Engineer.
7. Excavator will be used to loading suitable material on dump trucks at borrow pit area. A few numbers of dump truck will be used to transport the materials to embankment fill area. After the materials were unloaded motor grader will spread it on a layer with approx. 300mm thick and than compacted by vibro roller.
8. To avoid congestion and to ensure smooth flow during transporting the materials, two lanes haul roads shall be constructed.
9. A water bowser shall be provided at site project to control flowing dust. Flowing dust could be happened especially during dry season. Normally dust will spreading and flowing at hauls roads area. To control dust, water bowser could spraying water frequently a day.

Below are the number of machineries to be used during construction;

1. Excavator - For slope trimming, bulk excavation and loading to dump truck.
2. Dump trucks - For transporting the material from the cut area or borrows pits to form the embankment.
3. Bulldozer - Ripping and loosening of rock earth. Frequently the bulldozer is used for pushing and spreading the earth in layer for compaction.
4. Motor Grader - The motor grader can be used for spreading of sub-grades, shoulders, ditches and back slopes, maintenance of haul road.
5. Backhoe - Excavation below existing ground in firm or hard material as in digging pipe trenches.
6. Water bowser - For control dust on working area.
7. Compactor/Vibrating Roller - SAKAI CA 25 Vibrating Roller and DYNAPAC CF 51 - Compacting soil