Today there is a phone call from a customer asking about the demolition of shop houses, if it’s possible to demolish just one unit of the shop house.
While doing demolition, would it effect the building of our neighbors??
After the demolition is done, do they need to contact the electricity authority to remove electric wires?
To every question, Joe the demolitor, by Piyamitr Group Co.,Ltd, have the answers for you.
After agreed on the payment with the owner, collect all documents-copy of deed, id card and other document to apply for demolition permit with the district office. Disconnect the water and electricity supply inside the building to avoid short circuit and electric shock to the staff during the demolition work (the electricity is needed, we have to make the new wiring)
The demolition process of one unit of 4-storey terraced building , which is adjoined with other 9 units building on Praram III road. The building is Steel reinforced concrete, which is Cast-in-Place Concrete Slab (not Precast Concrete Slabs, for the Precast Concrete Slabs, it will require the different way of demolition method.) (please see the photo to help with your understanding)
1. Survey internal and external structure of the building and the nearby buildings before start the demolition. Ask the nearby houses for the photo taking to survey the damage and any fractures before starting any demolition work. Introduce yourself and be friends with houses in the neighborhood.
2.Arrange the protection mesh sheet, cover the front with metal sheet with pop-up beam overhang, install the demolition area sign with contact number.
3. Smash the floor into the 1.5x1.5 meter hole from the forth, third and second floor to drop the debris from the upper floor to the lower floor
4. Smash the wall on the fourth floor outside the building and carry the debris onto the lower floor.
5. Extract the floor with the concrete extraction machine- the handsaw- to separate the steel rod inside the concrete from the building structure on the nearby buildings, starting from the top floor, in this case, it is the fourth floor, and measure the the appropriate extraction distance at around 15 to 20 cm.
6. Extract the floor on the fourth floor, left only the steel structure, poles and beams (like spider web) to let the demolition crews walk pass to attach other parts of the structure.
7. After finishing the floor extraction and smashing, cut the steel rod, until there is only the beam left. Use electric extraction to extract the beam and poles.
8. Get the wreckage from the demolition work from the fourth floor to third floor and carry those debris pile up on the lower floor and take it outside to prevent the building from sustaining overweight materials ( it’s very dangerous, this must need to be concerned)
9. After finishing removing the floor, beam, pillars on the fourth floor, build the scaffolding for brickwork,do the measurement for brickwork and paint the top of the beam for rust protection on the steel rods.
10. Repeat the process 4 to 9 on the third and the second floor.
11. Contact the electricity authority to remove the electric wires under the awning.
12. Take the small backhoe drill and extract the floor and ground beam on the ground floor, and move debris outside the area. (left with only the footing or ground column of the nearby house.)
13. Clean up the area and hand over the work.
From what I mention, it’s not an easy task. If demolition contractors lack attention and caution or do not have enough experience,there may be cause invaluable damage. Finally it would leads to inevitable argument with people in the neighborhood.
If you would like to demolish any building, you can call us for the consulting, free of charge.
By Joe Demolition guy 0817551229 Building demolition by Piyamitr group, read and know everything in one place.
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