073 - tm2500 foundation
TRANSCRIPT
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7/23/2019 073 - TM2500 Foundation
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PT. MUBA DAYA PRATAMAPlasa PP, 5 th Floor
Jl. TB Simatupang 57Jakarta ( 13760 )
Phone : + 62 21 8403883 Ext 1501, 1638Fax : + 62 21 8403987, + 62 21 8409392Email : [email protected]
No. : 73/EXT/MDP/PLTG-TD/VI/2011 Jakarta, 22 nd June 2011
To.PT. SNC-Lavalin
Subject : TM2500 Foundation
Dear All,We have received the drawing No. TM2500 Pile Layout Plan - Mini Pile Alternative
Drawings today, 22nd June 2011 (Transmittal no. C-0042). Previously, we have received un-
official drawing of Pile Layout Plan on 13th June 2011. We are surprised with the number of
minipiles in those new drawing.
The drawing shown the number of minipiles in Auxiliary, Inlet and exhaust are 15 points
in each block (Total 45 points).
Refer to the TM2500 data from GE, the weight of equipment are:Main Trailer 210 lbs = 95.25 ton
Auxiliary : 46 lbs = 20.86 ton
Inlet : 46 lbs = 20.86 ton
Exhaust : 46 lbs = 18.14 ton
(complete data attached)
Self weight of pile cap concrete = 40 ton
Refer to the Capwap result Summaries of PDA test data in LM2500 :
Average bearing capacity : 79.9 ton Average Friction Capacity : 56.2 ton
Average end bearing capacity : 23.7 ton
(complete data attached)
Refer to the Pile Producer (PT. Tripalindo) brochure, the bearing capacity of 1 pile is 40 ton. If we
use 15 piles, it will support 15 x 40 ton = 600 ton
Ppowerplant development
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7/23/2019 073 - TM2500 Foundation
2/2
PT. MUBA DAYA PRATAMAPlasa PP, 5 th Floor
Jl. TB Simatupang 57Jakarta ( 13760 )
Phone : + 62 21 8403883 Ext 1501, 1638Fax : + 62 21 8403987, + 62 21 8409392Email : [email protected]
If we calculate in very roughly, the total bearing capacity in one block from 15 point of
minipiles is about 15 x 79.9 = 1,198 ton.
Those bearing capacity is very strong to support the equipment which has only 20.86
tons (exclude concrete weight 40 ton). Please consider this roughly logical analysis to get
economical construction for our project.
In our opinion, we consider that the composition of piles drawing that we received on 13th
June 2011 is enough. We will provide the engineering calculation to support it.
Thank you for your consideration and cooperation. Your kind cooperation and good
attention would be highly appreciated.
Thanking you,
Hasanin AP
Project Manager
CC:- PLN KIT SBS (Direksi Pekerjaan)- PLN JMK- PT. PP (Persero) Tbk.- PT. BER- PT. Navigat Energy
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Ppowerplant development