CN2399447Y

CN2399447Y - Drainage plastic dead canal material

Info

Publication number: CN2399447Y
Application number: CN 00227008
Authority: CN
Inventors: 邢来保
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-03
Filing date: 2000-01-03
Publication date: 2000-10-04
Anticipated expiration: 2010-01-03

Abstract

The utility model relates to a drainage plastic blind drain material used for civil engineering drainage, which is composed of a drainage filter element and a geotextile filtration membrane coated outside the drainage filter element, wherein, the drainage filter element is composed of a plurality of thermoplastic plastics filament bundles which are randomly distributed by forming a vegetable sponge net shape, and the drainage filter element can be formed into a square or a cylinder shape. The utility model has the advantages of large draining area, large water displacement, high anti-compression intensity and favorable acid and base resisting performance, and the utility model can be used for places which are requires to carry out drainage processing, such as dams, road beds, tunnels, sports ground, revetments, etc.

Description

Water drainage plastics french drain material

The utility model relates to a kind of civil engineering adrainage material, refers to a kind of water drainage plastics french drain material especially.

At present, need to carry out the occasion that draining is handled in geotechnique's construction, as dykes and dams, highway, railway bed, motion court, tunnel, bank protection or the like, traditional technology that it carries out draining when handling is to bury perforated pipe (as the perforate bamboo trunk etc.) in need carry out soil layer that draining handles underground, carries out draining to handle; Also have and adopt porous copper pipe, plastic pipe, tubular band iron square hole pipe, sand-free concrete tube etc. to carry out that draining handles, but said method is handled and all had the little defective of displacement.The percent opening of perforated pipe is generally 10-15%, the percent opening of porous copper pipe, plastic pipe is generally 40-60%, the percent opening of tubular band iron square hole pipe is generally 35-40%, the percent opening of non-fine concrete is generally 25-30%, this is that therefore, its displacement product is all less owing to be subjected to the restriction of product compressive strength requirement and the restriction of production technology, also cause the obstruction of drainage channel simultaneously easily, the effect of application is undesirable.

The purpose of this utility model is the plastics blind drainage material that a kind of displacement is big, drainage efficiency is high and compressive strength is high that designs at the deficiency of the said goods.

The purpose of this utility model is achieved by the following technical solution.

The utility model is a kind of water drainage plastics french drain material, comprises filter membrane and draining filter core composition, and the draining filter core is to be made of several thermoplastic tow, and is the random distribution of sponge gourd grain shape, and filter membrane wraps in draining filter core outside.

The material of described filter membrane is a geotextiles.

Described draining filter core is to be made of polyolefin plastics, and it can be square or cylindrical shape.

The utility model utilizes above structure can reach following advantage:

(1) the utility model is draining filter membrane that sponge gourd grain shape distributes as the outside because of utilization, and the internal clearance of its distribution is big, and the surface area that it can be permeable is also big, and effectively the water flowing area can reach 90-95%, so good water permeability is arranged;

(2) the speed resistance of the utility model draining is little, and water-flowing amount is big;

(3) because draining filter core of the present utility model adopts thermoplastic to make, random bonding mutually between formation filter core plastics tow, so good anti-pressure ability is arranged, its compressive strength height;

(4) the utlity model has good toughness and flexibility;

(5) the utility model adopts the hot melt polyolefin plastics to make, and has the effect of antiultraviolet, acid, alkali, the performance of energy stable for extended periods of time in soil, long service life;

(6) the utility model is in light weight, and is very convenient in the construction.

Below be description of drawings of the present utility model:

Fig. 1: structural representation of the present utility model;

Fig. 2: the structural representation of draining filter core 2 of the present utility model.

The utility model is described in further detail below in conjunction with embodiment.

From Fig. 1,2 as can be known, the utility model comprises filter membrane 1 and draining filter core 2 compositions, and draining filter core 2 is to be made of several thermoplastic tow, and is the random distribution of sponge gourd grain shape, and filter membrane 1 wraps in draining filter core 2 outsides.

The material of filter membrane 1 is a geotextiles.Draining filter core 2 is to be made of polyolefin plastics, and it can be square or cylindrical shape.This draining filter core 2 is extruded through extruder under heat is melted state, and random polyolefin plastics tow is shaped to an integral body through shaping mould again, and it is that random sponge gourd grain shape distributes that the tow after its moulding distributes.The difference that shaping mould is selected, the agent structure after its moulding are also different, the structure that provides among the figure structure that is square, and when selecting the cylindrical shape shaping mould, its shaped structures is a cylindrical shape.

Said structure of the present utility model, also can produce draining filter core 2 earlier, when constructing at the scene, can wrap geotextiles filter membrane 1 in the scene, during the utility model work, underground water is excluded by the space of geotextiles filter membrane between filter core, can be widely used in multiple need such as all kinds of dykes and dams, motion court, railway, highway subgrade, tunnel, bank protection, roof garden and carry out the place that draining is handled.

Because draining filter core of the present utility model adopts thermoplastic to make, constitute between filter core plastics tow random bonding mutually, so good anti-pressure ability is arranged, its compressive strength height, in use, when producing the resistance to compression load that surpasses design standard, deformation will take place in its filter core, and water passing capacity will be affected, but after tested when its load reaches 12 tons/square metre, its depth of section compresses 34%, still can keep being equivalent to the hard tube cross section of 4.7 centimetres of internal diameters, when it is compressed into the monoblock entity, final water flowing area still can keep 15-20%, and traditional hidden pipe is when overload when being crushed out of shape, and its limbers will be blocked by soil, causes draining to lose efficacy.

Claims

1, a kind of water drainage plastics french drain material, form by filter membrane (1) and draining filter core (2), it is characterized in that: draining filter core (2) is to be made of several thermoplastic tow, and is the random distribution of sponge gourd grain shape, and filter membrane (1) wraps in draining filter core (2) outside.

2, a kind of water drainage plastics french drain material according to claim 1 is characterized in that the material of described filter membrane (1) is a geotextiles.

3, a kind of water drainage plastics french drain material according to claim 1 is characterized in that described draining filter core (2) is to be made of polyolefin plastics, and it can be square or cylindrical shape.