... sandy soil outflow, thus effective interception sandy soil outflow. 2.geotechnological cloth has good leads the water performance, it may ... the network structure has the contingency nature and the mobility. 7.High water permeability --- in under the earth water pressure, ... Area, g/m2100150200250300350400450500600800Mass-area ratio deviation, %-8-8-8-8-7-7-7-7-6-6-6Thickness, mm ≥0.91.31.72.12.42 ...