Construction conditions of ultra high pressure pump tube
The construction conditions of the ultra-high pressure pump tube, the general engineering adopts the triple-tube high-pressure jet-jet pile, which is used as the water-stop curtain at the joint of the bored pile and the underground continuous wall. Considering that there are communication cables, gas and water pipelines that cannot be removed in the construction area, the bored piles can only be constructed in the gaps of the pipelines. We are provide stationary pump pipe,you can buy it.
There is a large gap between the piles and the piles. The triple-tube high-pressure jet-jet piles are piled up. After the pile diameter is less than 800mm, it is proposed to use the triple-tube high-pressure jet-jet pile as the water-stop curtain to achieve its effect.
Construction technical parameters:
1, the water pressure: 28 ~ 32MPa;
2. Flow rate: 80~120L/min;
3. Number of nozzles: 2;
4, grouting pressure: 0.5 ~ 1.0MPa;
5, air flow pressure: 0.3 ~ 0.5MPa;
6, lifting speed: 60 ~ 150mm / min, generally 120mm / min;
7, rotary spray speed: 10 ~ 15r / min;
8. Cement slurry water-cement ratio: temporarily 1:1, the average cement content of the pile is 450kg/m.
There are many types of pump tubes, including wear-resistant pump tubes, thick-wall pump tubes, thin-wall pump tubes, and wear-resistant pump tubes. Many of them are also in the category of machining. The most used ones are stamping, forging and roller processing.
rolling method, bulging method, stretching method, bending method, and combined processing method. Wear-resistant pump tube processing is an organic combination of machining and metal pressure processing.
The wear-resistant pump pipe is illustrated as follows: Forging method: The end or part of the pipe is punched out by a swaging machine to reduce the outer diameter. The common forging machine has a rotary type, a link type and a roller type. Stamping: The tube ends are expanded to the required size and shape with a tapered core on the press.