HDPE土工膜 HDPE Geomembrane

土工膜的知识与用途

Knowledge and Applications of Geomembranes

HDPE土工膜是土工合成材料其中的一种，土工合成材料的应用起源于二十世纪五十年代，国内的土工膜是的八五计划之一，HDPE土工膜是以(中)高密度聚乙烯树脂为原料生产的一种防水阻隔型材料。

HDPE geomembrane is one of the geosynthetics, and its application originated in the 1950s. Domestic geomembrane is one of the 8th Five Year Plan, and HDPE geomembrane is a waterproof and barrier profile material produced from (medium) high-density polyethylene resin.

性能特点：

Performance characteristics:

1、不含化学添加剂，也不经热处理，是型的建筑材料。

1. It is a type of building material that does not contain chemical additives or undergo heat treatment.

2、具有良好的力学性能，透水性好，并能抗腐蚀，抗老化。

2. It has good mechanical properties, good water permeability, corrosion resistance and aging resistance.

3、具有很强的抗埋、耐腐性能结构蓬松，具有很好的排水性能。

3. It has strong resistance to burial and corrosion, with a fluffy structure and excellent drainage performance.

4、有很好的摩擦系数与抗拉强度，具有土工加筋性能。

4. It has good friction coefficient and tensile strength, and has geotechnical reinforcement performance.

5、具有隔离、反滤、排水、保护、稳固、加强等功能。

5. It has functions such as isolation, filtration, drainage, protection, stability, and reinforcement.

6、能适应凹凸不平的基层，能抵抗施工外力破坏，蠕变小。

6. Capable of adapting to uneven base layers, resistant to external construction forces and low creep.

7、整体连续性好、重量轻、施工方便。

7. Good overall continuity, light weight, and convenient construction.

8、为透水材料，所以具有很好的反滤隔离功能，抗穿刺能力强，所以具有很好的保护性能。

8. As a permeable material, it has excellent filtration and isolation function, strong puncture resistance, and thus has good protective performance.

作用用途：

Purpose:

主要应用于垃圾填埋、污水废液处理、水利、农业、交通、高铁、隧道、机场、机场、建筑物、景观等防渗漏衬垫工程。

Mainly used in landfill, sewage and waste liquid treatment, water conservancy, agriculture, transportation, high-speed rail, tunnel, airport, airport, building, landscape and other anti leakage lining projects.

施工方案规范：

Construction plan specifications:

土工膜在运输过程中不要拖拉、硬拽，避免尖锐物刺伤。

Do not drag or forcefully pull the geomembrane during transportation to avoid sharp objects stabbing it.

1、应从底部向高位延伸，不要拉得太紧，应留有1.50%的余幅，以备局部下沉拉伸。考虑到本工程的实际情况，边坡采取从上到下的铺设顺序；

1. Extend from the bottom to the high position, do not pull too tightly, and leave a margin of 1.50% for local sinking and stretching. Considering the actual situation of this project, the slope is laid in a top-down sequence;

2、相邻两幅的纵向接头不应在一条水平线上，应相互错开1m以上；

2. The longitudinal joints of two adjacent frames should not be on the same horizontal line and should be staggered by more than 1m from each other;

3、纵向接头应距离坝脚、弯脚处1.50m以上，应设在平面上；

3. The longitudinal joint should be located at a distance of more than 1.50m from the dam foot and bend foot, and should be located on a plane;

4、先边坡后场底；

4. First slope, then site bottom;

5、边坡铺设时，展膜方向应基本平行于大坡度线。

5. When laying the slope, the direction of film spreading should be basically parallel to the large slope line.

产品规格：

Product specifications:

0.3mm~3mm，宽度1m~8m，长度按客户要求

0.3mm~3mm, width 1m~8m, length according to customer requirements