SINOMUD drilling fluid used together with the first rectangular pipe jacking machine in the work.
Rectangular pipe jacking machine sent the first pipe soil, which marked the first rectangular pipe jacking machine in the world was used in sand and gravel stratum. SINOMUD
The soil also include silty clay, fine sand, pebble. Soil formation is complicated, it is easy to met bit bailing, sticking and swelling problem. So they use SINOMUD drilling fluid. Bentonite, liquid polymer, suspension agent. To make sure the project goes smoothly.
