Plastic Water-Permeable Blind Drain Ditch

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Plastic Water-Permeable Blind Drain Ditch

Specifications and Parameters Indicators

Model		Rectangle Cross Section Series				Round Cross Section Series
		MF0730	MF1435	MF1550	MF1235	MY60	MY80	MY100	MY150	MY200
Outer Size Width×Thickness（≥mm）		70*30	140*35	150*50	120*35	φ60	φ80	φ100	φ150	φ200
Hollow Size Width×Thickness（≥mm）		40*10	40*10*2	40*20*2	40*10*2	φ25	φ45	φ55	φ80	φ120
Weight(≥g/m)		350	650	750	600	400	750	1000	1800	2900
Porosity(%)		82	82	85	82	82	82	84	85	85
Compression Strength KPa	Flatness Ratio5%≥	60	80	50	70	80	85	80	40	50
	Flatness Ratio10%≥	110	120	70	110	160	170	140	75	70
	Flatness Ratio15%≥	150	160	125	130	200	220	180	100	90
	Flatness Ratio20%≥	190	190	160	180	250	280	220	125	120

Note:

1. Other cross section patterns, sizes or technical spec. are available. Please contact us to customize.

2. Coating Filter cloth: 90g/m² filament woven geotextiles or 100-300g/m² knitted geotextiles. All geotextiles meet Chinese Industrial Standard.

Other Models of Plastic Water-Permeable Blind Channel

Construction Guidelines

Plastic Water-Permeable blind ditch filter products are available in a variety of synthetic fiber filters. Fiber non-woven filter (70-400g/m2) is the most common. It depends on the soil properties and water inflow of the site.

Generally speaking, for ordinary soil, 150g/m2 filter membrane is more suited, and for the part with large water immersion is advised to fully pave with gravel instead of filter membrane. In case there is no gravel to be backfilled but original soil, please expose them in the sun for 2-3 days(except sticky soil) before backfill.

The judgment of the selected filter is as follows: When there is concern that the water is less, and the water containing the fine particles (inflow through the filter membrane) is accumulated for a long time, the synthetic fiber non-woven thin type filter is recommended, because it can help the water continuously discharged with fine soil.

If gravel is adequately laid in a place where there is a large amount of water in the gravel soil, the filter could be omitted. The filter has two original rolls of 100 meters and two kinds of bag-shaped joining types of sizes 2m-8m.

Roll series feature for fast construction, but difficult to bury it in narrow deep trench. Bag-shaped joint series (wrapped) are suggested for small diameter plastic blind groove materials. When using the roll filter, first put a filter film in the trench and then place the plastic blind groove material, and use the filter film to wrap the plastic blind groove material from the left and right direction. The joint of the plastic blind groove material should be nailed with two special fitting claw-nails and then backfilled. For the cross seam, prepare a non-woven fabric or a suitable vinyl film to entangle the intersection. The final part of the plastic blind ditch should be connected to the rest (plastic or cement outlet pipe), and the joint should be coated with mortar to prevent the culvert water from discharging the sand. If the water contains precipitable substances, it is best to use a nylon mesh with different meshes as a filter to prevent the sediment from gradually clogging in the outer layer of the filter, so that the drainage function is lost.