Geotechnical tube bag (Geotube) is a kind of made of polypropylene yarn weaving tubular geotextile bags with filter structure.
Geotechnical tube bag dehydration curing method is a process of underwater dredging of macromolecule flocculant dosage must be scaled solution into the mud mud, energetic blend to pack to geotechnical tube bag, by pressure filtration dehydration and consolidation, and thus to reduce the sludge volume.
Geotechnical tube bag dehydration curing method has the following advantages: (1) geotechnical diameter tube bag can change according to the demand (1 ~ 10 m), the length of the biggest can reach 200 m;
(2) the earthwork volume tube bag adjust scale, transporting device is concise, plasticity;
(3) geotechnical strength of tube bag, filtering, and long-term high anti-ultraviolet function (4) geotechnical tube bag containers can be stacked layers, to maximize the use of the land;
(5) processing unit price per cubic meter of sludge was lower than those of other methods of curing;
6 convenient construction, short construction period;
All landowners is fully enclosed construction, is not easy to form secondary pollution;
Today from geotechnical tube bag filter out harmful elements in water than the sludge mixture index decreased by 92% ~ 96%, and filter the water completely reached the corresponding emission standard for the above advantages, geotechnical tube bag dehydration curing method has been widely used in recent years in environmental protection, water conservancy, category of industry, agriculture, etc.
Among the sand lakes sediment dredging and disposal project, there are 400000 m3 adopted geotechnical tube bag sludge dewatering curing method for processing.
Now project has been completed, tested, and the sand lakes water nutrient condition by the differentiation of heavy eutrophic nutrient-rich ease to moderate, and after the curing treatment of silt soil have been used for sand lakes in the construction of the park, completed the silt resource use.
This paper first introduces earthwork tube bag dehydration curing method in wuhan sand lakes sediment dredging and disposal of the successful use in engineering.
Post time: Jan-05-2018