Trenchless pipe jacking

Pipe jacking engineering is a trenchless underground pipeline construction technology, which is mainly used to lay or replace underground pipelines without damaging the ground structure. The so-called pipe jacking is to use the jacking force generated by the jacking equipment (such as the main top cylinder, trunk, etc.) in the working pit to overcome the friction between the pipeline and the surrounding soil, and push the pipeline into the soil according to the design slope. The front end of the pipe is usually equipped with a tool pipe or a boring machine to break up the soil in front of it, and the pipe is then gradually advanced until the pipe is buried between the two pits. The role of mud in pipe jacking In jacking construction, mixing mud (generally containing bentonite, carboxymethy