CN202380480U - One-way water drain pipe of retaining walls - Google Patents

Abstract

The utility model relates to a one-way water drain pipe of retaining walls and relates to the field of construction projects, in particular to water drain pipes of retaining walls for flood prevention and storm drainage and water conservancy projects. The one-way water drain pipe of retaining walls comprises a one-way valve (1), a water inlet pipe (6) and a water outlet pipe (7); the one-way valve (1) is arranged between the water inlet pipe (6) and the water outlet pipe(7). When the water level of a channel raises to submerge the water drain pipe, channel water does not flow backwards into soil body of the wall back due to non-return action of the one-way valve (1); after the water level declines and the water drain pipe is exposed, water of the soil body of the wall back can be effectively discharged to avoid collapse of the wall body caused by the saturated condition of water content of the soil body. The one-way water drain pipe of the utility model is characterized by being convenient in construction, low in cost, good in effects and the like and is applicable to municipal drainage, flood prevention and storm drainage and water conservancy projects.

Description

The unidirectional tapping pipe of retaining wall

Technical field

The utility model relates to the unidirectional tapping pipe of a kind of retaining wall, relates to the construction project field, particularly controls flood and drains flooded fields, the retaining wall tapping pipe of hydraulic engineering.

Background technology

Urban sewerage and drainage, control flood and drain flooded fields and hydraulic engineering much all is to adopt the revetment open channel, revetment adopts the retaining wall form.The retaining wall structure is the pressure that is used for resisting the outside soil body, also is the sliding force of the soil body, and sliding force is the horizontal component of soil body gravity.In unit weight, cohesion, the angle of internal friction of carrying out all can relating to when retaining wall calculates soil; These parameters are all relevant with soil body water content or pore water pressure; Water content increases the unit weight that can strengthen soil, and cohesion between the soil body particle and angle of internal friction all can reduce, and the sliding force of the soil body increases.Therefore, when the design retaining wall, all tapping pipe will be set in body of wall, to avoid causing that in rainy or other reason retaining wall back of the body soil body water content is excessive, soil pressure increases and causes retaining wall to cave in.

Urban sewerage and drainage, control flood and drain flooded fields and hydraulic engineering waited the retaining wall in water channel road,, can get rid of the moisture of the soil body under the normal conditions such as light rain though on body of wall, be provided with tapping pipe; But the water level when running into heavy rain in the channel escalates; Flooded tapping pipe, the water of the wall back of the body soil body not only can not be got rid of, and the water of channel can pour in down a chimney the into wall back of the body soil body through tapping pipe; Make the water content of the soil body state that reaches capacity; This moment, the channel water position was higher, and retaining wall is also had a pressure, and the internal and external pressure balance retaining wall is in a safe condition.Because heavy rain comes to such an extent that go soon characteristic suddenly, the channel downstream drainage is unimpeded if heavy rain stops the back, and the water level in the channel descends rapidly; And the moisture in the wall back of the body soil body can not be discharged timely and effectively; The unit weight of the soil body increases, and the cohesion of the soil body, angle of internal friction reduce, and soil body sliding force increases; Pressure to retaining wall also just increases, and the possibility that causes retaining wall to cave in is arranged.

Summary of the invention

The purpose of the utility model is: provide a kind of retaining wall unidirectional tapping pipe; Function with single slope drainage; Beneficial effect is arranged in the discharge conduit revetment retaining wall, can get rid of wall back of the body soil body moisture effectively, and prevent that the water of channel from pouring in down a chimney to the wall back of the body soil body; Avoid the soil body water content state that reaches capacity, cause body of wall to cave in.The utlity model has characteristics such as easy construction, cost be low, effective, can be used for urban sewerage and drainage, control flood and drain flooded fields and hydraulic engineering.

The utility model is realized through following technology:

The unidirectional tapping pipe of retaining wall comprises one way valve 1, water inlet pipe 6, outlet pipe 7.One way valve 1 is arranged between water inlet pipe 6 and the outlet pipe 7, and one way valve 1 is made up of loam cake 2, valve body 3, base 4, ball float 5, and valve body 3 is for to be up-small and down-big reducing pipe, and ball float 5 is the cellular plastic spheres of outer wrap rubber.Ball float 5 is positioned at up-small and down-big valve body 3, falls by deadweight, between ball float 5 and the valve body 3 bigger gap is arranged, and water can be discharged from outlet pipe 7 through the gap, sees Fig. 1.The channel water level rises when flooding tapping pipe, and ball float 5 floats and rises to the less end of valve body 3 diameters, and very close to each other between the rubber layer of ball float 5 outer walls and the valve body 3, water just can not pour in down a chimney to water inlet pipe 6 through outlet pipe 7, sees Fig. 2.The unidirectional tapping pipe of retaining wall is provided with sketch map and sees Fig. 3, and unidirectional tapping pipe is set in retaining wall 8, and water inlet pipe 6 is connected through one way valve 1 with outlet pipe 7; When the water surface 9 is higher than tapping pipe; Do not make it to reach capacity because the non-return effect of one way valve 1, water in a canal can not be poured in down a chimney to the wall back of the body soil body 11, tapping pipe exposed after the water surface 9 descended; Ball float 5 falls, and the moisture of the wall back of the body soil body 11 is discharged.

Description of drawings

Fig. 1 is the one way valve opening;

Fig. 2 is the closed check valve state;

Fig. 3 is provided with sketch map for the unidirectional tapping pipe of retaining wall.

Among the figure: at the bottom of 1-one way valve, 2-loam cake, 3-valve body, 4-base, 5-ball float, 6-water inlet pipe, 7-outlet pipe, 8-retaining wall, the 9-water surface, the 10-canal, the 11-wall back of the body soil body.

The specific embodiment

One way valve 1 structure is seen Fig. 1, Fig. 2, and loam cake 2, valve body 3, the base 4 of forming one way valve 1 adopt the PVC material, and ball float 5 inside are that polyethylene foams is processed, outer wrap one deck rubber.Earlier ball float 5 is put into base 4 during assembling, smears PVC glue in the loam cake 2 and the joint portion of valve body 3, valve body 3 and base 4, bonding each other firmly and solidify and got final product in 24 hours.The entrance point of one way valve 1 and the port of export are arranged to the bellmouth of bell socket, and unidirectional tapping pipe can be made into 50 millimeters of diameters, 80 millimeters, 100 millimeters specification, require to use in order to different bleeder quantities.

The retaining wall tapping pipe is installed and to be seen that Fig. 3, following row's tapping pipe should be higher than 10 certain altitudes at the bottom of the canal, is positioned on the ordinary water level, and the level interval of tapping pipe and vertical interval are definite according to DESIGN OF RETAINING WALLS figure.Water inlet pipe 6 adopts pvc pipe with outlet pipe 7, and length is according to actual intercepting, and water inlet pipe 6 is smeared PVC glue with outlet pipe 7 and one way valve 1 junction, inserts the bellmouth of one way valve 1, gets final product after the curing.Should notice when building retaining wall 8 by laying bricks or stones that one way valve 1 will vertically place, carry out the wall back of the body soil body 11 when filling, require loaded filter is set according to DESIGN OF RETAINING WALLS at the tapping pipe place.

Claims (4)

1. the unidirectional tapping pipe of retaining wall comprises one way valve (1), water inlet pipe (6), outlet pipe (7), it is characterized in that: one way valve (1) is arranged between water inlet pipe (6) and the outlet pipe (7).

2. the unidirectional tapping pipe of retaining wall according to claim 1 is characterized in that: described one way valve (1) is made up of loam cake (2), valve body (3), base (4), ball float (5).

3. the unidirectional tapping pipe of retaining wall according to claim 2 is characterized in that: described valve body (3) is for being up-small and down-big reducing pipe.

4. the unidirectional tapping pipe of retaining wall according to claim 2 is characterized in that: described ball float (5) is the cellular plastic spheres of outer wrap rubber.

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