Therefore, before starting the main pressure station and high pressure station of the rectangular pipe jacking machine, it is necessary to bet the sodium-based bentonite mixture on all the pipes for a long time. The time must often be long enough, because the mixed liquid only flows slowly between the surface layer of the water pipe and the surrounding soil layer under the general flow limit. After a long period of interruption, it is better to use a mixture with a lower flow limit when the rectangular pipe jacking machine is used to top the pipe again. In other words, the composition of sodium bentonite is lower than that of the standard particle size. In order that the mixed liquid can be quickly placed on the injection nozzle without first squeezing the hard blocks in the sodium bentonite pipeline with a high working pressure, it is better to drain the sodium bentonite pipeline before the long-term interruption. Exhausted.

 

　　 It is a very inconvenient task to exhaust the sodium-based bentonite pipeline inside the pipeline. Because of that, it is inevitable that the pipeline will be filled with Perun soil slurry. In order to have the same effect as the draining road without causing the inconvenience of dirtying the pipeline, before shutting down the sodium bentonite pressure delivery system software, pump cold water into the pipeline first, and the water flow should be as accurate as possible. Equal to pipeline capacity.

When the pipe is pushed by the rectangular pipe jacking machine, the function of this support point fades from now on. Since the sodium-based bentonite compression method is also terminated, the main countermeasure is when the pipe jacking equipment is lifted again. Be sure to respond to this support point function.

 

　　 Therefore, before starting the main pressure station and high pressure station of the pipe jacking equipment, it is necessary to bet the sodium-based bentonite mixture on all the pipelines for a sufficient period of time. The time must often be long enough, because the mixed liquid only flows slowly between the surface layer of the water pipe and the surrounding soil layer under the general flow limit. After a long period of interruption, it is better to use a mixture with a lower flow limit when the rectangular pipe jacking machine is used to top the pipe again. In other words, the composition of sodium bentonite is lower than that of the standard particle size.

 

In order that the mixed liquid can be quickly placed on the injection nozzle without first squeezing the hard blocks in the sodium bentonite pipeline with a high working pressure, it is better to drain the sodium bentonite pipeline before the long-term interruption. Exhausted. It is a very inconvenient task to drain the sodium-based bentonite pipeline inside the pipeline. Because of that, it is inevitable that the pipeline will be filled with Pengrun soil slurry. In order to have the same effect as the draining road without causing the inconvenience of dirtying the pipeline, before shutting down the sodium bentonite pressure delivery system software, pump cold water into the pipeline first, and the water flow should be as accurate as possible. Equal to pipeline capacity.