Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Geomembrane covering double-track hot melting technology process for refuse landfill
The invention relates to a geomembrane covering double-track hot melting technology process for a refuse landfill, which is characterized in that two pieces of high-density polyethylene (HDPE) membranes to be welded are melted in an extremely short time by utilizing a high temperature of 400-600 DEG C provided by double tracks of a double-track hot melting welding machine, so that the two pieces of HDPE membranes are tightly connected together. The double rails complete a group of double welds at a time, a cavity is formed between the double welds, and the welding quality of the welds can be detected by inflating the cavity for leakage detection. According to the invention, the quality is stable, the qualification rate is greatly improved, the tensile test qualification rate is more than 99%, and the vacuum test qualification rate is more than 99%; the construction efficiency is greatly improved, and the welding speed reaches 4 m/min or above; the construction efficiency and the construction quality are improved, and the construction cost is reduced by more than 20%. A group of double welding seams is completed at a time, a cavity capable of being inflated for leakage detection is formed, the formed cavity is used for inflation leakage detection, the construction method is stable in quality, and the percent of pass is greatly increased. The construction method is suitable for large-area splicing, the weld length is reduced, and the construction cost is reduced.
本发明涉及到一种垃圾填埋场土工膜覆盖双轨热熔技术工艺，利用双轨热熔焊机双轨提供的400℃～600℃的高温，在极短的时间内将待焊的两片高密度聚乙烯膜熔融，从而使两片HDPE膜紧密的连接在一起。双轨一次完成一组双焊缝，双焊缝之间形成一个空腔，可通过对空腔进行充气检漏，以检测焊缝的焊接质量。本发明质量稳定，合格率大幅提升，拉力测试合格率99%以上，真空测试合格率99%以上；施工效率大幅提升，焊接速度达到4m/min以上；施工效率和施工质量的提升，降低施工成本20%以上。一次完成一组双焊缝，并形成一个可充气检漏的空腔，利用形成空腔进行充气法检漏，该工法质量稳定，合格率大幅提升。此工法适用于大面积拼接，减少焊缝长度，降低施工成本。
Geomembrane covering double-track hot melting technology process for refuse landfill
The invention relates to a geomembrane covering double-track hot melting technology process for a refuse landfill, which is characterized in that two pieces of high-density polyethylene (HDPE) membranes to be welded are melted in an extremely short time by utilizing a high temperature of 400-600 DEG C provided by double tracks of a double-track hot melting welding machine, so that the two pieces of HDPE membranes are tightly connected together. The double rails complete a group of double welds at a time, a cavity is formed between the double welds, and the welding quality of the welds can be detected by inflating the cavity for leakage detection. According to the invention, the quality is stable, the qualification rate is greatly improved, the tensile test qualification rate is more than 99%, and the vacuum test qualification rate is more than 99%; the construction efficiency is greatly improved, and the welding speed reaches 4 m/min or above; the construction efficiency and the construction quality are improved, and the construction cost is reduced by more than 20%. A group of double welding seams is completed at a time, a cavity capable of being inflated for leakage detection is formed, the formed cavity is used for inflation leakage detection, the construction method is stable in quality, and the percent of pass is greatly increased. The construction method is suitable for large-area splicing, the weld length is reduced, and the construction cost is reduced.
本发明涉及到一种垃圾填埋场土工膜覆盖双轨热熔技术工艺，利用双轨热熔焊机双轨提供的400℃～600℃的高温，在极短的时间内将待焊的两片高密度聚乙烯膜熔融，从而使两片HDPE膜紧密的连接在一起。双轨一次完成一组双焊缝，双焊缝之间形成一个空腔，可通过对空腔进行充气检漏，以检测焊缝的焊接质量。本发明质量稳定，合格率大幅提升，拉力测试合格率99%以上，真空测试合格率99%以上；施工效率大幅提升，焊接速度达到4m/min以上；施工效率和施工质量的提升，降低施工成本20%以上。一次完成一组双焊缝，并形成一个可充气检漏的空腔，利用形成空腔进行充气法检漏，该工法质量稳定，合格率大幅提升。此工法适用于大面积拼接，减少焊缝长度，降低施工成本。
Geomembrane covering double-track hot melting technology process for refuse landfill
一种垃圾填埋场土工膜覆盖双轨热熔技术工艺
WU ZHIYONG (Autor:in) / ZHANG XIAOYU (Autor:in) / WANG SHUAICHAO (Autor:in)
22.03.2022
Patent
Elektronische Ressource
Chinesisch
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