2024
County MSW landfill containment: 1.5mm smooth HDPE on base, 1.5mm double-textured on slopes, 400 g/m² filament geotextile cushions above and below, composite drainage net for leachate collection. Whole-system leak detection passed before operation.
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2023
Concrete-cell rigid landfill lining with two-cloth-one-film composite (1.0mm film), basal leak-detection layer with observation wells, extrusion-welded double patches at all structural joints and boots; each cell independently sealed and accepted.
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2023
Tailings pond remediation: 1.5mm smooth HDPE on the basin, 1.5mm double-textured on dam slopes, 400 g/m² filament geotextile plus sand cushion, crest anchor trenches with berms, and groundwater monitoring wells.
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2022
Phased retrofit around plant operation: 1.0-1.5mm HDPE over 400 g/m² filament geotextile, perimeter intercepting ditches, anchor trenches signed off as concealed works with complete photo records.
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2024
Hazardous fly-ash cells with double composite liner: GCL-OF plus HDPE below, 4-6mm drainage-net detection layer with observation wells, 1.5mm double-textured HDPE primary liner; 100% seam and detail testing with video records.
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2024
Manure anaerobic digestion covers: 1.0-1.5mm virgin black HDPE bottom and top membranes, top cover tensioned into crest trenches with ballast, gas valves and gauges installed, boots double-patched, gas-tightness tested.
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2023
Township sewage oxidation ponds sealed with 1.0mm black HDPE over 200 g/m² cushion; waterline zone uprated and densely anchored; crest trenches compacted and capped.
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2024
Concrete tanks lined with 1.5mm GH-2 HDPE over geotextile cushion; crest pressure strips with anchors and sealant; all boots and corners extrusion-welded with double patches and vacuum-tested; closed-water test passed.
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2023
Basin lined with two-cloth-one-film composite 800 g/m² (0.75mm film), uprated to 900 g/m² on slopes, sand bedding below, sealed crest anchor trenches, staged filling tests.
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2024
Urban river works: geobag vegetated banks above water with 300 g/m² filter, cement-blanket armor at scouring reaches, Φ16 anchors at 1.5m on steep sections, spray seeding and curing.
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2023
Undulating lake bed laid with factory-drawn cut-to-size two-cloth-one-film 600 g/m², ≥300mm soil cover with aquatic planting, single-textured membrane banks with geobag eco-facing.
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2024
Earthen pond conversion with 0.5-0.75mm non-toxic HDPE over 200 g/m² cushion on sandy bases, 50cm crest trenches, staged filling acceptance before stocking.
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2023
Raised shrimp ponds lined with 0.75mm smooth UV-stabilized black membrane; seams kept off pond corners; deepened trenches with dense ballast for typhoons; smooth surface enables pressure-wash cleaning.
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2022
Support dressed and inflows drained, 400 g/m² geotextile cushion hung, 1.5mm EVA board fixed on quincunx discs (arch 0.8m), double-seam welded laps air-tested, defects patched and retested before secondary lining.
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2024
Cut-slope protection: toe strip footing, filament geobags filled to 80% stacked with 3D connectors, Φ16 grouted anchors at 1.5m on steep zones, 300 g/m² filter, hydraulic seeding with curing covers.
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2023
Mountain and narrow canal reaches lined with 10mm cement blanket over 200 g/m² geotextile cushion, 100mm laps along flow pinned and sealed, even watering hydration — no formwork, mixing or pumping.
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2024
Workshop floor containment: compacted subgrade, sand and geotextile bedding, 1.5mm HDPE liner with sub-liner detection layer and collection trenches, geotextile plus lean concrete blinding, then reinforced slab for forklift loads.
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2022
Bund floors lined with 1.5mm fuel-grade HDPE over a drainage-net detection layer draining to sumps and observation wells; slack transition zones around tank rings; hot works under permits with fire watches.
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