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1、Foundation raft the plank and the foundation beam item engineering start construction project1, General situation and main engineering measure:This engineering foundation design has a beam type the raft plank the foundation for reinforcing bar Mao.The raft plank flat surface presents a L form, raft
2、plank thick 550 mms, the width 22.16 ms, thing to the length 44.36 ms, the south is northern toward the length 82.78 ms.The foundation beam cuts the noodles size as 400 s 600 mms.The Mao marks the number as C25, the total square measures for the 1310 ms 3, the reinforcing bar used measures 150 Ts.At
3、 16-18 stalk closes to 18 and stays and has a 1 m the breadth of run-through after sprinkle and take, after sprinkle and take Mao and need corpus completion of work empress then sprinkle and build.2, Start construction deployment and main construction project:Template engineering the workload is sma
4、ll, start construction simple, so take no account of dividing the line a construction segment, whole is a construction segment;Reinforcing bar and Mao sprinkle to build engineering, hereafter sprinkle to take to is divided into two construction segments for boundary, organize a simple flowing water
5、construction.The reinforcing bar engineering starts construction first 1-16 stalks(I segment), sprinkle to build Mao after check, concealed examination accepted qualified.At sprinkle to build a Mao to continue at the same time colligation 18-58 stalks(II segment) reinforcing bar, sprinkle to build a
6、 Mao in a row after check, concealed examination accepted qualified.(The I segment Mao measures about is a 660 ms 3, II segment Mao about is a 650 ms 3).Main construction method is as follows:1.Template engineering (1)Template adoption already set combination steel template, the U type wreath links.
7、Mat level after cleaning off, first the cent segment puts together to pack, the template puts together to brush a good insulation first before packing.(The insulation mainly uses an engine oil).The main specification of outer circle side template is 1500 s 300 mmses, 1200 s 300 mmses, 900 s 300 mmse
8、s and 600 ses 300 mms.The template props up on the Mao mat layer of lower part, the level props up to pay with the short pillar, and wood Xie.etc. of steel pipe and circle wood at on all sides the radicle pit side wall up.The foundation beam upper part compares the 50 mm side mold of raft plank nood
9、les high to put together to pack with the 100 mm breadth combination steel template and use wire Ning tight, in the center prop up with mat piece or reinforcing bar head to promise the piece of beam noodles size.The template side fluently keeps pulling wires a little bit just, stalk line, cut noodle
10、s size according to mat layer up of play a line check more positive.The template after reinforcing the examination completion uses a level instrument to settle an elevation and flick Mao open on the template noodles top surface even line.Be control the basis of Mao elevation.(2)In order to dismantle
11、 the propping up of template tube, and wood Xie.etc. first the sequence of mold, loose conjunction piece, then dismantle template, clean up, the classification returns a heap.Dismantle before the mold Mao to want to attain certain strength, promise dont damage sharp angle while dismantling a mold.2.
12、Reinforcing bar engineering (1)Reinforcing bars pressing the model number, specification classification to add a mat wood is piled and overaly plastics to organize a defence rain snow.(2)The dish I class reinforcing bar adopts a cold method for pulling to adjust to keep, cold pull a rate control at
13、4% in.(3)For be subjected to dint reinforcing bar, the I class reinforcing bar bitter end(include to used to the I class reinforcing bar of distributing the reinforcing bar) does 180 degrees curved hook, curved the diameter inside the Hu be no smaller than a 2.5 ds, the straight and even segment len
14、gth of curved empress is no smaller than 3 ds.The II class reinforcing bar is design to request that when doing 90 degrees or 135 degrees is curved to hook bend the diameter inside the Hu be no smaller than 5 ds.For dont weld to close Jin bitter end to make 135 degrees curved hook, bend diameter ins
15、ide the Hu in addition to being no smaller than a 2.5 ds still dont should be smaller than to be subjected to the dint Zong Jin diameter inside the hoop path, the straight and even segment length of curved empress is no smaller than 10 ds.(4)Before reinforcing bar colligation starts construction, es
16、tablish in the radicle pit cami Gao about the simple warm Peng with 4 ms with cover rain snow and keep radicle pit air temperature, avoid a mat layer Mao suffering jelly to harm in the reinforcing bar colligation period.Sign pillar to use 50 steel pipes, is apart from for the 3.0 ms, the coping maneuvers toward the even pole is respectively? 50 steel pipes, the tube mesh size constituting is 1.5 s 1.5 mses, its top spreads wooden board, square ste
