垃圾填埋场HDPE膜防渗施工方案（Construction plan of HDPE membrane seepage prevention for landfill）.doc

垃圾填埋场HDPE膜防渗施工方案（Construction plan of HDPE membrane seepage prevention for landfill） Construction plan of HDPE membrane seepage prevention for landfill The first chapter, the base surface requirements 1., before laying HDPE geomembrane, should be in conjunction with the civil engineering, establishment, design, owners of the laying of a comprehensive inspection of the base, in line with the design requirements, to meet the construction conditions, and handover inspection records before construction. 2. surface quality should meet the design requirements: the pit bottom, slope and slope ratio, slope, slope anchorage groove and righteousness surface junction, silo wall concrete structure surface should strictly meet the design requirements. 3., the base surface should be dry, compacted, smooth, no cracks, no obvious tip, no mud, no sag, vertical depth of 25mm, there should be roots, debris, stones, steel head, glass chip. The smoothness should be changed gently within the allowable range. The slope is uniform and the slope is uniform. 4., the base of the Yin and Yang corner of the smooth transition, the root of the column should be made arc shaped. 5. the base surface is dry and the moisture content should be below 15%. The 6. substrate should be dense and homogeneous, soil basal stem density of not less than 1.4t/ square meters. 7. in the civil construction, supervision, design units, owners, general contractor acceptance, signature and approval, they can carry out geomembrane construction. The second chapter, construction climate requirements 1., the temperature should generally be more than five degrees Celsius, low temperature, geomembrane should be more tense, high temperature geomembrane should be relaxed. 2. the wind is below four. 3., when the temperature is too low, more than 4 winds and rain and snow generally should not be built. 4. in the wind weather, wind affect the construction of geomembrane, HDPE geotechnical membrane bag application to be welded firm