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/ official website www.sdjtfscol.com Contact person; Mr
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Yang specializes in the production of geosynthetics such as long (short) silk non-woven fabric, geomembrane, composite geomembrane, PE / PVC / EVA / ECB waterproof board, GCL sodium bentonite waterproof blanket, drainage net, drainage board, grille, reinforcement mat, geocell, soft permeable belt, water stop pipe and so on
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The application of 1.0 mm anti-seepage geomembrane in pig farms started in the mid-1980s
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The first is the application of anti-seepage geomembrane in Canal Anti-seepage, and then the emergence of HDPE anti-seepage membrane
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The earlier waterproof and anti-seepage projects include Henan Renmin Shengli canal, Shaanxi Renmin Weihe canal, Beijing Dongbeiwang irrigation area and several irrigation areas in Shanxi Province
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After use, the effect is very good, so it will be extended to reservoirs, sluices and reservoirs
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How long can impervious membrane last? How long can impervious membrane last? It depends on your choice of impervious membrane material
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The impervious membrane in front of the membrane is made of brand new materials
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The price of recycled materials is not the same
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Of course, the quality is not the same
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Do not use it cheaply
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It is made of polymer raw materials after processing
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Due to sudden change during construction or long-time operation, the anti permeability film is aging, which is reflected in appearance discoloration, loss of luster, and decline of mechanical properties
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The decline of mechanical properties has an impact on the project, which makes the tensile strength and damage strain of the data decrease significantly, directly affects the leakage of the channel and the normal operation of the channel
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Another factor in the aging of impervious membrane is that due to the light decay and oxidation decay caused by ultraviolet light, the light from the sun on the ground is continuous, and the ultraviolet light reaching the ground causes the photo oxygen aging of data, plus the thermal oxygen aging caused by temperature
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Because their total energy is obviously greater than the bond energy of some chemical bonds of impervious membrane, it constitutes the aging of impervious membrane
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The adopted method is to maintain the data during construction or long-term operation
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In the process of use, the data show that the oxygen supply is high, the sunlight is strong, and the decay is faster than that in the shade
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Basic requirements: after the data are paved, the soil material shall be covered in time, and the thickness shall not be less than 30cm
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The aging and decay of underwater data will decrease due to the water cover
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Cover of biogas digester top membrane: the cover of biogas digester top membrane adopts 1.5mm thick anti-seepage geomembrane
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According to the actual terrain of the site, cut HDPE anti-seepage geomembrane according to the size, reserve the amount of expansion, weld and lay it in order to cover the whole biogas digester
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After the top membrane covering is laid, the bottom membrane and top membrane welded around are buried in the anchorage ditch for backfilling and fixation
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Under normal circumstances, the bulging height of biogas top membrane is 3-5M
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If it is more than 5m, exhaust treatment must be carried out
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If it is not discharged in time, it is easy to cause the biogas top membrane to pull out from the anchorage ditch, which can seriously cause the top membrane rupture, thus affecting the service life of biogas anti-seepage geomembrane
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Advantages of Dingfeng geomembrane: deposit production, cash on delivery, thickness and size square up to standard, if there is any change, return unconditionally
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Matters needing attention in the construction and installation of geomembrane: 1
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Cutting and transportation: according to the measurement record of laying base level, cut the large bundle of geomembrane number record, and carry it to the laying site according to the number
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Note: do not drag or drag the geomembrane during transportation to avoid sharp objects
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HDPE geomembrane laying construction and installation (2.1) should be extended from the bottom to the high position, do not pull too tight, should leave 1.50% of the margin, in case of local sinking and stretching
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Considering the actual situation of the project, the slope is laid from top to bottom
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2) the longitudinal joints of two adjacent sheets shall not be in a horizontal line, and shall be staggered by more than 1m
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3) the longitudinal joint shall be more than 1.50M away from the dam foot and bending foot, and shall be set on the plane
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4) slope first and then bottom
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5) when laying the slope, the film spreading direction should be basically parallel to the slope line
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Slope laying: before laying the anti-seepage geomembrane on the slope, check and measure the laying area
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According to the measured size, transport the anti-seepage geomembrane matching the size in the warehouse to the anchorage ditch platform of phase I
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during laying, according to the actual conditions of the site, take the convenient way of “pushing” from top to bottom
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In the sector area, it should be cut reasonably to make the upper and lower ends firmly anchored
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Site bottom laying: before laying the anti-seepage geomembrane, check and measure the laying area first, and transport the anti-seepage membrane matched with the size in the warehouse to the corresponding position according to the measured size: when laying, manually push the geomembrane in a certain direction
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Alignment and alignment: the laying of HDPE geomembrane, whether on the side slope or at the bottom of the site, should be smooth and straight to avoid wrinkles and corrugations, so as to align and align the two geomembranes
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According to the design requirements, the lap width is generally about 10cm
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Lamination: press the aligned HDPE geomembrane with sand bags in time to prevent the wind from blowing
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Laying in Anchorage ditch: at the top of the anchorage ditch, a certain amount of impervious membrane shall be reserved according to the design requirements for local sinking and stretching
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Longitudinal joint: the uphill section is on the upper side and the downhill section is on the lower side, and sufficient lap length = 15cm is reserved
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The bentonite pad is laid in the area after passing the acceptance, and the manual “push paving” is carried out in a certain direction
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Shandong Jiantong geotechnical materials Co., Ltd
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sales hotline 15315810311.
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