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Excavation for RE Wall.

 So, hey guys! How are you? You might have read my previous blogs about panel casting and panel placing. Now it's time to learn about panel erection or what to do after 3-4 months of casting the panels. So the first step is about excavation for RE Wall. Then only you can erect the panels. So let us learn about this excavation part. 

You all know excavation work is done by JCB or Falkland. To excavate the soil and then carry it to the other dumped areas. But before excavation you all know, to marked the center line as well as the outer line also so that the area doesn't excavate much as per the requirement. For excavation just you need to take 500mm more, then that of the given drawing. 



Doing this excavation is easy. But what to do if it's flooded with rain water/ or water coming from other sources. Definitely your answer will be to do dewatering work with a water pump. That's fine. But do this dewatering work with almost by fixing 3-4 water pumps. So that it soaks more water, and complete the dewatering of excavation pit in less time.  



When does this happen ?

This happens mostly in Summer season's or Monsoon season, when rainfall gives heavily/ day-by-day. In that time doing excavation is not of any use. It will lead to muddy like condition or like as damp soil. Generally do this excavation work when the soil is dry or unsaturated. Basically this should be done in spring season or winter season. Because, you all know why? At that time less rainfall occurs, or the soil is partially saturated. 

Now, the main thing is what to do after excavation? Yeah, I am asking you only. What to do after this step? 
Don't panic 😃. There is nothing step to worry about. There is a thing called Geotextile / Geobag (whatever you say). You have to laid it on the excavation pit so that it maintains barrier between silty clay and GSB. Wait I will show you in the photo. 
This is the type of Geotextile, you have to fix it on the excavation pit.


So after fixing this Geotextile on the excavation pit you have to give GSB layer. So that it hardens the surface and gives a nice compaction to maintain proper erection and hardens the ground. And after that the levelling pad work is started. 

Erection of panels mainly depends upon the excavation. Yes, one more thing to tell you, make the Levelling Pad properly. 
Take the level by Auto-level machine and see that there is no up & down 1mm also. Otherwise the whole panel erection will fail to rise. So give the level properly, so that you can make the levelling pad in nice and proper order. 




And after making all these erection of panel starts. And what to do for erection, all these I will explain in another blog. 
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Location: Dibrugarh, Assam, India

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