CN201924334U

CN201924334U - Recharge well with geotextile filter layer

Info

Publication number: CN201924334U
Application number: CN2010205493892U
Authority: CN
Inventors: 李旺林; 卢雪梅; 张宙云; 李桂国; 王卫山
Original assignee: University of Jinan
Current assignee: University of Jinan
Priority date: 2010-09-30
Filing date: 2010-09-30
Publication date: 2011-08-10
Anticipated expiration: 2020-09-30

Abstract

The utility model provides a recharge well with a geotextile filter layer, belonging to a pressure-free recharge well for recharging surface water to underground, wherein the recharge well with a filter layer has a function for filtering particles impurities from water and a certain of desilting and impact resistant capability; simultaneously, sand building materials are saved, and the influence of well cover to the quantity of water recharge is removed. The recharge well with a geotextile filter layer is composed of an inverted filter tank and a common recharge well. The inverted filter tank comprises a geotextile filter layer, a tank wall and a plastic permeable body, wherein the tank wall is constructed by reinforced concrete, concrete or masonry; the inverted filter tank is an inverted circular truncated cone or inverted square table in shape; the tank is filled with the plastic permeable body; and the inverted filter tank is used for filtering particles impurities from water by using the geotextile which is fixed on the top of the inverted filter tank.

Description

The anti-recharge well of filtering of geotextile

Technical field

The utility model relates to a kind of underground water does not have the pressure recharge well, and the anti-recharge well of filtering of particularly a kind of geotextile himself has the function of filtering granule foreign in the recharge water and has the ability of certain opposing current scour.

Background technology

In order to make full use of rain flood resource, the Shandong Province usually arranges a kind of recharge well that self has particulate contamination function in the filtered water in the ephemeral stream that does not have pollution or light contamination, and the promptly anti-recharge well of filtering also claims the machine seepage well.At present the anti-filter recharge well that adopts wherein recharges the pond and is the shape of falling Sifangtai heatable adobe sleeping platform by recharging the pond and common recharge well is formed, about dark 1m, cheats interior backfill sand, rubble two-stage filter material; Recharge well is positioned in the middle of the pond, and its well head is added a cover a concrete well cover that has an eyelet.The problem that this anti-filter recharge well exists is: (1) anti-recharge well of filtering places at the bottom of river bed or the canal, and very easily silting influences the amount of recharging and application life; (2) recharge the pond for the heatable adobe sleeping platform that the hand excavation forms, very easily wash out, influence application life.(3) pond is recharged in one of construction needs backfill 10m ³About sand, rubble, consume a large amount of constructional materialss; (4) the well lid influence amount of recharging.

Summary of the invention

In order to overcome the defective of existing anti-filter recharge well, the purpose of this utility model provides a kind of self have anti-filter function and certain anti-silt impact resistance, does not use sandstone material again and has the anti-recharge well of filtering of geotextile of the amount of recharging more greatly simultaneously.

The technical scheme that its technical problem that solves the utility model adopts is: the anti-recharge well of filtering of this kind geotextile, this recharge well is made up of two parts, top is the anti-filter tank with granule foreign function in the filtered water, the bottom is common recharge well, anti-filter tank is made up of the permeable body of loaded filter, pool wall and plastics, it is characterized in that: loaded filter is positioned on the pool wall in anti-filter tank, and the permeable body filling of plastics is in inside, anti-filter tank, in the middle of recharge well is positioned at the bottom of the pond, anti-filter tank;

Described loaded filter is made up of the geotextile with anti-filter function: described geotextile is for spinning geotextile or nonweaven geotextile; Geotextile is tiled in above the anti-filter tank, and it is suitable for reading to be fixed in the pool wall in anti-filter tank; Described pool wall is by steel bar concrete or concrete or masonry material construction, the cornice size is not less than down the cornice size on the pool wall, the pool wall horizontal profile is shaped as circular or square, and the pool wall sectional elevation is shaped as straight line or curve, and cornice should be higher than anti-filter recharge well on every side more than the ground elevation 10cm on the pool wall.

The beneficial effects of the utility model are, have proposed the anti-recharge well of filtering of geotextile, and this well self has function and certain anti-silt impact resistance of granule foreign in the filtered water, save the sandstone constructional materials simultaneously again, have also eliminated the influence of well lid to the amount of recharging.

Mainly show:

Raise pond, anti-filter tank crest level by (1), make it exceed 10～30cm at the bottom of river bed or the canal; (2) recharge the geotextile that Chi Chiding shop one deck is easy to change, prolonging the application life of anti-filter recharge well.

For solving the technical scheme that is adopted in the anti-filter tank of water impact be: increase anti-filter tank safeguard structure---the pool wall with certain intensity and shock-absorbing capacity, the pool wall material is built by steel bar concrete, concrete, masonry material; It is circular or square etc. that the pool wall horizontal profile is done; The pool wall sectional elevation is done and is in line or curve.

For solving the big technical scheme that adopts of constructional materials consumption be: remove sand, rubble filter material, use that geotextile is counter to be filtered instead; Geotextile has easily been selected for use and has been spun geotextile, also can select nonweaven geotextile for use; It is suitable for reading that geotextile is fixed in anti-filter tank pool wall, and can prevent current scour.

For solving the well lid influence technical scheme that the amount of recharging adopted be: remove well lid, and in anti-filter tank the permeable body of filling plastics, utilize the permeable body of plastics can support the geotextile loaded filter, can cover well head again, prevent that object from falling in the well; The permeable body of plastics is to be primary raw material with the thermoplastic synthetic resin, through modification, under the hot melt state, squeeze out thin plastic strip by nozzle, again by shaped device with plastics silk welding on node of extruding, and a kind of 3 D stereo net structure that forms; The permeable body section void content of plastics is not less than 80%, and the compressive strength of flat ratio 10% is not less than 50kpa; The permeable body profile of plastics is similar to anti-filter tank, and volume should be less than anti-filter tank volume.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the anti-vertical cross section figure that filters recharge well of geotextile;

Fig. 2 is the vertical cross section A-A section in anti-filter tank;

Fig. 3 is mouthful flat cross section B-B of horizontal saliva cross section (representing circular anti-filter tank), top, anti-filter tank;

Fig. 4 is mouthful horizontal saliva flat cross section B-B cross section (representing square anti-filter tank), top, anti-filter tank.

Annotate: Fig. 3, Fig. 4 represent the anti-filter tank of circle, square two kinds of profiles in fact.

The specific embodiment

In Fig. 1, the first step is beaten recharge well according to a conventional method, settles the concrete filter pipe, places filter material, and carries out technology such as well-flushing, finishes the construction of recharge well (4); Second step was dug hole, anti-filter tank by Fig. 1 and Fig. 2 requirement; The 3rd step was adopted cast-in-place or prefabricated method, built anti-filter tank pool wall (2); The 4th step placed the permeable body of plastics (3) in the anti-filter tank; The 5th step was tiled in top, anti-filter tank with geotextile loaded filter (1), and geotextile loaded filter (1) was fixed in the last cornice of anti-filter tank pool wall (2) with rope or clamp etc.

Referring to Fig. 1, Fig. 2, the anti-recharge well of filtering of geotextile is made up of two parts, and top is the anti-filter tank with granule foreign function in the filtered water, and the bottom is common recharge well (4), and anti-filter tank is made up of loaded filter (1), pool wall (2) and the permeable body of plastics (3).Loaded filter (1) is positioned on the pool wall (2) in anti-filter tank, and the permeable body of plastics (3) filling is in inside, anti-filter tank, in the middle of recharge well (4) is positioned at the bottom of the pond, anti-filter tank.

Loaded filter (1) is made up of the geotextile with anti-filter function; Described geotextile is for spinning geotextile or nonweaven geotextile; Geotextile is tiled in above the anti-filter tank, and it is suitable for reading to be fixed in the pool wall in anti-filter tank.

Pool wall (2) is by steel bar concrete or concrete or masonry material construction, the cornice size is not less than down the cornice size on the pool wall, pool wall (2) horizontal profile is shaped as circle (as Fig. 3) or square (as Fig. 4), the pool wall sectional elevation is shaped as straight line or curve, and cornice should be higher than anti-filter recharge well on every side more than the elevation 10cm of ground (5) on the pool wall.

Claims

1. anti-recharge well of filtering of geotextile, this recharge well is made up of two parts, top is the anti-filter tank with granule foreign function in the filtered water, the bottom is common recharge well, anti-filter tank is made up of loaded filter (1), pool wall (2) and the permeable body of plastics (3), it is characterized in that: loaded filter (1) is positioned on the pool wall (2) in anti-filter tank, and the permeable body of plastics (3) filling is in inside, anti-filter tank, in the middle of recharge well is positioned at the bottom of the pond, anti-filter tank;

Described loaded filter (1) is made up of the geotextile with anti-filter function; Described geotextile is for spinning geotextile or nonweaven geotextile; Geotextile is tiled in above the anti-filter tank, and it is suitable for reading to be fixed in the pool wall (2) in anti-filter tank;

Described pool wall (2) is by steel bar concrete or concrete or masonry material construction, pool wall (2) is gone up the cornice size and is not less than down the cornice size, pool wall (2) horizontal profile is shaped as circular or square, pool wall (2) sectional elevation is shaped as straight line or curve, and pool wall (2) is gone up cornice should be higher than anti-filter recharge well on every side more than the ground elevation 10cm.