The difference between geomembrane (here specifically composite geomembrane) and geotextile: geomembrane is made of high-density polyethylene and is mainly used to prevent seepage. Geotextiles are divided into woven geotextiles and non-woven geotextiles. Geotextile, as the name suggests, is made of non-woven fabric. 1. Composite geomembrane protection 1 Composite geomembrane should be transported by car. Loading and unloading, handling should not be dragged or pulled hard, and no tools that may damage the composite geomembrane should be used to avoid sharp object stabbing. 2 Composite geomembrane laying personnel should wear soft-soled shoes, and it is strictly forbidden to wear hard-soled shoes or studded shoes to work. 3 The laid composite geomembrane is supervised by a special person. It is strictly forbidden to carry out any construction work on the composite geomembrane that may cause damage to the composite geomembrane. 4 In order to facilitate construction workers to work and walk, and to avoid damaging the geomembrane, a walking ladder should be made and placed on the slope of the canal and moved according to the actual construction needs. 5 The geomembrane reserved for the top of the embankment should be installed in time for curb sealing, and the geomembrane at the foot of the slope should be wrapped and protected to prevent damage and aging. When lining concrete is poured, the support and fixation of the formwork must not cause damage to the composite geomembrane. The formwork can be supported and fixed by pressing heavy objects and setting supports on the auxiliary device of the formwork. 6 During the laying process, sand bags or soft heavy objects are used to prevent damage to the laid geomembrane by high winds. 7 Fire is strictly prohibited at the construction site, and electrical welding work should be kept away from composite geomembrane.