桩芯混凝土浇注计划(国外英文资料).docVIP

桩芯混凝土浇注方案(国外英文资料) Pile core concrete construction plan 1, the general situation of The base of the main building of A and D is made of artificial excavated piles, and the design of the pile diameter is 1600, 1700, 1800, 1900, 2000, and 2100, and the basic conditions are as follows. The serial number The pile type Diameter (D) (A) pile diameter The number of pavilions pile The number of total one ZJ1 1600 1700 4 8 2 ZJ2 1700 1800 14 28 3 ZJ3 2000 2100 4 8 4 ZJ4 1800 1900 15 30 The concrete strength of pile core is C35 and the engineering quantity is about 4000m3. Material selection Medium sand, 20-40 gravel, 42.5 R regular Portland cement Site construction condition In A construction site, A building foundation pit side of A mixing plant, building A station is equipped with 1 JS750 concrete mixer, two batching machine and A pump, A mixing plant are now equipped with 1 D JS750L concrete mixer, 1 batching machine. Between the holes in the foundation pit, there are 80 thick and 2500-3000 wide C10 concrete padded pavement. Construction preparation According to the design requirement, bind the steel cage, and carry out the hidden acceptance, after the inspection and acceptance, the pile core concrete should be poured as soon as possible. Before pouring the pile core concrete, the residue of the protective wall and the water on the bottom of the hole should be cleaned up. Before construction, adequate labor should be arranged according to the quantity of engineering and construction equipment, and the continuity of concrete pouring shall be guaranteed. Before construction, the work of safety and technology should be made. Construction of pile core concrete 1) the mixing of concrete According to the quality inspection station through experiment provides the concrete mix proportion, all materials are strictly to the scale, and by the specialist is responsible for the supervision, with the rate of large JS750 concrete mixer mixing concrete at the scene, according to the qual