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hdpe膜分析化學特點很穩定

2021-02-03文章來源www.ourbeks.com作者:山東中輝環境工程有限公司830
1. 防滲土工膜是這種高透水率的柔性防水原材料. 2、防滲土工膜具備優良的耐溫性和抗寒性,其工作中工作溫度為高溫110℃,超低溫-70℃. 3.防滲土工膜具備優良的有機化學可靠性. 4. 防滲土工膜具備較高的抗壓強度強度,可滿足高標準工程項目的要求.

1. Anti-seepage geomembrane is a flexible waterproof material with high permeability. 2. Anti-seepage geomembrane has excellent temperature resistance and cold resistance. Its working temperature is 110 C at high temperature and - 70 C at ultra-low temperature. 3. Anti-seepage geomembrane has excellent organic chemical reliability. 4. Anti-seepage geomembrane has high compressive strength, which can meet the requirements of high-standard engineering projects.

5. 防滲土工膜具備極強的耐老化和耐老化特性. 6、總體特性的防滲土工膜,HDPE防滲土工膜具備極強的抗壓強度和拉伸強度,HDPE防滲土工膜可用以各種各樣極端的地質學和氣侯標準.對地質學不勻稱地基沉降適應能力強.

5. Anti-seepage geomembrane has strong anti-aging and anti-aging characteristics. 6. Anti-seepage geomembrane with overall characteristics, HDPE anti-seepage geomembrane has very strong compressive strength and tensile strength. HDPE anti-seepage geomembrane can be used in various extreme geological and climatic standards. It has strong adaptability to the settlement of geologically asymmetric foundation.

聚乙烯地膜生產過程中,質檢人員應按批次對地膜進行隨機檢驗.檢查項目包括以下三個方面:

In the production process of polyethylene film, the quality inspectors should carry out random inspection of the film in batches. The inspection items include the following three aspects:

1. 聚乙烯地膜的外觀和物理性能包括:單位面積質量測定、振幅測定和厚度測定.

1. The appearance and physical properties of polyethylene film include the determination of mass per unit area, amplitude and thickness.

2. 聚乙烯地膜的力學性能包括:寬帶材拉伸試驗、梯形撕裂強度試驗、CBR爆裂強度試驗、降錐試驗等.

2. The mechanical properties of polyethylene film include tensile test of broadband material, trapezoidal tear strength test, CBR burst strength test, cone-drop test, etc.

3.聚乙烯地膜的水力性能試驗包括垂直滲透試驗、靜水試驗等.

3. Hydraulic performance test of polyethylene film includes vertical permeability test and hydrostatic test.

土工膜具有很好的化學穩定性能

Geomembrane has good chemical stability

土工膜施工方法:

Geomembrane construction method:

1. 從底部向高處延伸,不要太緊,局部沉降延伸留有1.5%的余量.結合工程實際情況,坡面由上而下鋪設.

1. It's not too tight to extend from the bottom to the top. The local settlement extension leaves a 1.5% margin. In combination with the actual situation of the project, the slope is laid from top to bottom.

相鄰的兩個縱縫不應在一條水平線上,應錯開對方1米以上.

The two adjacent longitudinal joints should not be in a horizontal line, but should be staggered by more than one meter.

3、縱向接縫應距壩腳1.5米,彎曲腳時,應位于平面內.

3. Longitudinal joints should be 1.5 meters away from the dam foot. When bending the foot, it should be located in the plane.

4、先坡后田底.

4. Slope before field.

5. 鋪坡時,薄膜方向應與最大坡度線基本平行.

5. When laying a slope, the direction of the film should be basically parallel to the maximum gradient line.

土工膜施工的氣候要求:

Climate requirements for Geomembrane construction:

1. 溫度應在5℃以上,低溫土工膜應繃緊,高溫土工膜應放松.

1. Temperature should be above 5 C. Low temperature geomembrane should be tightened and high temperature geomembrane should be relaxed.

2. 風力低于4級.

2. Wind power is below grade 4.

3.溫度過低時,不宜使用4級以上的風、雨、雪.

3. When the temperature is too low, it is not advisable to use wind, rain and snow above grade 4.

4. 在多風天氣,當風影響土工膜施工時,焊接的HDPE土工膜應用沙袋壓緊.

4. In windy weather, when the wind affects the construction of geomembrane, the welded HDPE geomembrane should be compacted with sand bags.

土工膜的特性和功能:

Characteristics and functions of geomembrane:

1、不含化學添加劑,易無熱處理,是環保建材.

1. No chemical additives, easy to heat treatment, environmental protection building materials.

具有良好的機械性能,良好的滲透性,抗老化.

It has good mechanical properties, good permeability and aging resistance.

3、具有較強的埋地電阻、耐腐蝕性能、蓬松結構,具有良好的排水性能.

3. It has strong buried resistance, corrosion resistance, fluffy structure and good drainage performance.

4、具有良好的摩擦系數和抗拉強度,具有巖土加固性能.具有隔離、過濾、排水、保護、穩定、加固等功能.6、能適應地基不平,能抵抗建筑外力破壞,蠕變較小.

4. It has good friction coefficient and tensile strength, and has the properties of geotechnical reinforcement. It has the functions of isolation, filtration, drainage, protection, stability and reinforcement. 6. It can adapt to the uneven foundation, resist the external force damage of buildings, and has less creep.

7. 整體連續性好,重量輕,施工方便.

7. The whole system has good continuity, light weight and convenient construction.

8. 土工膜不透水,具有良好的過濾隔離功能,抗穿刺能力強,防護功能好.

8. Geomembrane is impervious, has good filtering and isolation function, strong puncture resistance and good protection function.

土工膜鋪設要點:

Key points of geomembrane laying:

1. 土工膜鋪設前,應提交相應的土工驗收合格文件.2. 切割土工膜前,應準確測量相關尺寸,然后根據實際尺寸切割土工膜.一般情況下,根據圖中所示的尺寸切割土工膜是不合適的.

1. Before laying the geomembrane, the relevant acceptance documents should be submitted. 2. Before cutting the geomembrane, the relevant dimensions should be measured accurately, and then the geomembrane should be cut according to the actual size. Generally speaking, it is not appropriate to cut the geomembrane according to the size shown in the figure.

3.土工膜鋪設時,應盡量減少焊縫,在保證質量的前提下盡可能節約原材料.保持質量也很容易.

3. When laying geomembrane, the welds should be minimized and the raw materials should be saved as much as possible on the premise of guaranteeing the quality. It is also easy to maintain the quality.

4. 薄膜與薄膜之間的接縫搭接寬度一般不小于10cm,且焊縫對齊方向通常與最大坡度平行,即沿坡度方向.

4. The overlap width between the film and the film is not less than 10 cm, and the alignment direction of the weld is usually parallel to the maximum gradient, i.e. along the gradient direction.

5. 通常在角和變形段,縫長應盡量縮短.除特殊要求外,坡度大于1:6的邊坡,應盡量在距頂坡1.5米以內或應力集中區域內設置焊縫.

5. Usually in the angular and deformed sections, the seam length should be shortened as far as possible. Except for special requirements, for slopes with slope greater than 1:6, the seam should be set within 1.5 meters from the top slope or in the stress concentration area.

6. 鋪設時應避免人工折疊.當溫度較低時,應盡可能地擰緊鋪裝.

6. Artificial folding should be avoided in paving. When the temperature is low, the paving should be tightened as much as possible.

7. 土工膜鋪設完成后,應盡量減少在土工膜表面行走和移動工具等.對不透水膜造成傷害的物品,不應放置在膜上或攜帶在膜上,以免意外損壞膜糠.

7. After the laying of geomembrane is completed, the walking and moving tools on the surface of geomembrane should be minimized. Items harmful to impermeable membrane should not be placed on or carried on the membrane to avoid accidental damage to the membrane chaff.

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