How to lay the special geotextile film for constructing lotus root ponds and lotus root ponds?

　　1、 Attention steps for the installation of lotus root pond anti-seepage membrane: cushion acceptance - lotus root anti-seepage membrane installation - bottom geotextile stitching - lotus root anti-seepage membrane welding - lotus root anti-seepage membrane welding seam inspection - upper geotextile stitching - lotus root anti-seepage membrane acceptance - covering protective cushion material - protective layer material acceptance - mortar masonry stone - mortar masonry stone acceptance.

　　2、 The installation of lotus root anti-seepage film should be manually transported to the working surface for installation as much as possible. The upstream surface of the dam body is paved from top to bottom (the lotus root anti-seepage membrane is long and parallel to the dam axis), and horizontally from the foot of the slope to the outer end; When paving, two layers of lotus root anti-seepage film should be placed with pedestrian wooden boards, and attention should be paid to moderate relaxation. It is required that the joint surface between the lotus root anti-seepage film and the cushion layer must fit smoothly to avoid damage to construction machinery caused by human factors.

　　3、 The installation of lotus root anti-seepage film should be coordinated with the installation of the protective layer, ensuring that it is pressed as it is laid. For the location of the anti-seepage blanket area in the reservoir area, pedestrian wooden boards are installed in the seepage spring eye, and a raised wooden board is installed between the forward and reverse paving membrane materials, so that the welding of the lotus root anti-seepage membrane is in dry ground construction. After the welding inspection is qualified, the reverse geotextile membrane is turned counterclockwise 180 °, and the repeated engineering construction of composite lotus root anti-seepage membrane paving, welding, and testing begins.