Quality assurance measures<br>Sealing ditches are mechanically supplemented by manual trenching, which is made to ensure the size of the section and cut off the permeable layer. Clean up all the sand and powder in the membrane trench area and transport it to the reinforcement area for storage.<br>In order to ensure the sealing effect of the mud sealing wall, the following measures are taken: <br>1, sealed mud using low permeability clay production;<br>2, appropriately mixed into a certain amount of bentonite;<br>3, construction in strict accordance with the operating procedures of the construction, to ensure that the depth, spacing, do not miss.<br>4, vacuum pre-pressure is completed, sealing the trench for excavation, re-basking, and filling.
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