Why should the drainage pipe under the bottom of rubber dam be wrapped with geomembrane
A lot of geotextile wrapped outside the drainpipe.The upper part of the drainage pipe is wrapped with geotextile, and the lower half part is coated with the geomembrane.Outside the drainage pipes have not been wrapped geomembrane.Because the pipe wall can not be used without water pipe is more reasonable and convenient.
Geomembrane, generally refers to impermeable material.
Why should the drainage pipe under the bottom of the rubber dam be wrapped with geomembrane?
