Stabilizer for excavated surface

摘要

This invention relates to an improved stabilizer for excavated surface, and more particularly to a stabilizer for excavated surface which comprises adding at least one of natural cellulose fibers, particularly pulp, defibrated waste paper stock or their mixture to an ordinary stabilizer for excavated surface containing bentonite, etc. as the main component to be used for excavating the ground according to a fluid circulation system. The stabilizer according to the present invention has a good membrane formation ability and good strengthening and reinforcement of the soil structure around the excavated surface and also has a high capacity of suspension and dispersion of the excavated muds and gravels.