What matters should be paid attention to in post-grouting construction of bored piles?

In the process of post-grouting construction, the technological parameters of post-grouting should be checked frequently, and treatment measures should be taken immediately if any abnormality is found.

During grouting operation, safety measures such as explosion prevention, pipe throwing and leakage prevention should be taken.

When grouting is interrupted, you should try to avoid being forced to interrupt grouting. After the interruption, find out the reason immediately, take effective measures to eliminate the fault, and resume grouting as soon as possible. When grouting is resumed, we should start with mud.

Pressure gauges in grouting pump should be checked regularly.

For mud leakage treatment, quick-setting mud or additives can be used according to actual needs.

During the construction period, measures should be taken to prevent dust from polluting the environment.

During composite grouting, the pile side should be followed by the pile bottom; When multi-section piles are laterally grouted, they should be up first and then down, and the interval should not be less than 3 hours.

Note items in pure handwritten memory, forget to adopt them.