Research on new grouting equipment and method for the treatment of gushing water in porosity sandstone
- WU Nong, ZHANG Xiao, LI Mengtian
JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE). 2015, 45(4):
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In order to solve the problem of lacking effective targeted grouting equipment and methods to water disaster of the porosity sandstone, a new kind of grouting equipment for the water disaster governance in porosity sandstone was developed, which could output stable low pressure and controlled flow rate through continuous extrusion mode in the injection process. Moreover, a new method for the grouting treatment in porosity sandstone was proposed and supplemented by new grouting equipment, which could improve the injecting property of the sandstone medium, and guarantee the grouting effects effectively. The new grouting equipment and method were applied to the grouting experiment about porosity sandstone medium successfully, and compared with the piston grouting pump. The result about diffusion radius, diffusion experiments shape and grouting pressure showed that piston injection pump was not suitable for the water disaster governance in porosity sandstone, the equipment and method was further validated scientific and feasible, and a new way of thinking for the treatment of gushing water in porosity sandstone of underground projects was provided.