1.After the pile hole is formed, the hole must be carefully cleaned.It is to use flushing fluid to punch hole commonly, punching time should be decided according to the situation of sediment inside the hole.After punching, concrete should be poured in time to avoid sediment at the bottom of the hole.

2.The pore diameter is measured carefully before pouring concrete, and the concrete demand of full hole and first pouring hole section is calculated accurately.Pay special attention to pore expansion in bedrock to avoid insufficient first perfusion.

3.The first concrete pouring quantity should meet the requirement of burying the lower end of the catheter for more than 0.8 meters.

4.For the first time, cement mortar shall be used for the initial part or the 1st -- 2nd bucket feeding, and one-time filling into the hole shall be done as far as possible.

5.The lower diameter of perfusion catheter should be controlled above 200 mm.The lower end of the catheter should be as smooth as possible.Its joint to add "O" sealing ring, to prevent the immersion of washing liquid.The catheter should be cleaned to remove dirt and residue before use.The lower end of the catheter should be 0.5 meters from the bottom of the hole.Rubber plate should be added to cement waterproof plug in the catheter to enhance the waterproof effect.

6.In areas with large groundwater activity, casing or cement should be used for water stopping treatment in advance, and concrete can be poured after water stopping.

7.The method of "back to the top" was used for perfusion.

8.According to the rising height of concrete inside and outside the catheter, the removal length of the catheter should be reasonably controlled. Under normal circumstances, the lower end of the catheter should be buried for 2-3 meters, and too much lifting should be avoided.

9.In the process of pouring concrete, the depth of concrete inside and outside the conduit should be measured regularly, and a curve should be drawn to monitor whether the broken pile occurs.Under normal circumstances, the distance between the concrete interface inside and outside the conduit is large at first, then gradually shrinks and finally coincides.If it is found that the distance of concrete pouring curve inside and outside the pipe widens, and the concrete curve outside the pipe flattens, while the concrete curve inside the pipe steepens, it is a sign of pile breaking. The reason should be ascertained and dealt with as soon as possible.

TRUSEEN,Loyally provide you with the best products and services.

Tel:0086-371-86238892 | +86 15617732826

Email:admin@truseen-machinery.com