CN215519101U - Blind drain drainage structure - Google Patents

Abstract

The utility model relates to a french drain drainage structure belongs to the technical field of french drain drainage, and it includes the french drain, lead to long in the french drain and be provided with geogrid, geogrid is followed french drain lateral wall and bottom surface set up, geogrid parcel has the geotechnological cloth that permeates water, the geogrid top is provided with the drainage floral tube, the french drain is filled with the level and is joined in marriage the grit, geogrid includes a plurality of grid units, two terminal surface top surfaces of grid unit have set firmly the thread gluing respectively, and two the thread gluing sets up on the contrary. This application has the advantage that improves french drain drainage effect.

Description

Blind drain drainage structure

Technical Field

The application relates to the field of blind ditch drainage, in particular to a blind ditch drainage structure.

Background

The blind ditch is a drainage and intercepting blind ditch which is arranged in a roadbed or a foundation and filled with coarse-grained materials such as crushed stones and gravels and laid with an inverted filter layer (in which water-permeable pipes are embedded).

At present, only graded sandstone is adopted for backfilling in the blind ditch, the permeability coefficient is low, and in the using process, the water drainage is not smooth due to the deposition and the siltation of fine particles such as soil and the like which are more rich in surface water.

In view of the above-mentioned related art, the inventor believes that there is a defect that the blind ditch is easy to be silted up, resulting in poor drainage.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that the blind ditch is easy to be silted up and causes unsmooth drainage, the application provides a blind ditch drainage structure.

The application provides a french drain drainage structures adopts following technical scheme:

the utility model provides a french drain drainage structure, includes the french drain, the length leads to in the french drain is provided with geogrid, geogrid follows french drain lateral wall and bottom surface set up, geogrid parcel has the geotechnological cloth that permeates water, geogrid top is provided with the drainage floral tube, the french drain is filled with the level and is joined in marriage the grit.

Through adopting above-mentioned technical scheme, through setting up the geogrid in the french drain to wrap up the geotechnological cloth that permeates water on the geogrid, form the filter layer, reduce the drainage channel that fine particle infiltration drainage floral tube and geogrid formed such as earth, reduce the seepage flow of fine particle such as earth and discharge, avoid fine particle deposition such as earth to silt up, cause the drainage unsmooth, improve the drainage effect of french drain.

Optionally, the geogrid includes a plurality of grid units, the thread gluing has been set firmly respectively on two terminal surface top surfaces of grid unit, and two the thread gluing sets up in opposite.

Through adopting above-mentioned technical scheme, through setting up geogrid into a plurality of grid units, splice each other between a plurality of grid units and form holistic geogrid, the ann of the geogrid of being convenient for tears open, finishes the back at the construction, convenient to detach to treat follow-up use, practice thrift construction cost.

Optionally, the length of the grid unit is 0.5-1.5 m.

Through adopting above-mentioned technical scheme, grid unit length is moderate, the operating personnel of being convenient for transport, also is convenient for install and tear open.

Optionally, the geogrid is a three-way geogrid.

Through adopting above-mentioned technical scheme, the three-dimensional geogrid has hollow spatial grid structure, can with form the drainage smooth drainage channel, the drainage of being convenient for more to three-dimensional geogrid overall structure intensity is higher, and is not fragile, more durable.

Optionally, the geogrid is 25mm thick.

By adopting the technical scheme, the geogrid is provided with a certain thickness, so that the geogrid can form a drainage channel together with the drainage perforated pipe.

Optionally, the top surface of the geogrid is covered with trapezoidal beads.

Through adopting above-mentioned technical scheme, trapezoidal ribbing plays the design effect to geogrid to can play the guard action to geogrid, prevent that geogrid from destroying.

Optionally, the drainage perforated pipe is bound and fixed in the trapezoidal pressing rib.

Through adopting above-mentioned technical scheme, with drainage floral tube ligature fixed, make drainage floral tube installation more firm.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the geogrid is arranged in the blind ditch, and the permeable geotextile is wrapped on the geogrid to form the filter layer, so that fine particles such as soil and the like are reduced from permeating into a drainage channel formed by the drainage floral tube and the geogrid, seepage and discharge of the fine particles such as soil and the like are reduced, the fine particles such as soil and the like are prevented from being deposited and silted up to cause unsmooth drainage, and the drainage effect of the blind ditch is improved;

2. the geogrid is arranged into a plurality of grid units, and the grid units are spliced with one another to form the integral geogrid, so that the geogrid is convenient to install and detach, and is convenient to detach after construction is finished so as to be used subsequently, and the construction cost is saved;

3. the geogrid is provided with a certain thickness, so that the geogrid and the drainage perforated pipe can form a drainage channel together.

Drawings

Fig. 1 is a schematic cross-sectional view of an embodiment of the present application.

Fig. 2 is a simple schematic diagram of a grid unit and a hook and loop fastener according to an embodiment of the present application.

Description of reference numerals: 1. blind ditches; 2. a grill unit; 21. geotextile; 22. sticking a thread; 3. a water discharge perforated pipe; 4. trapezoidal rib pressing; 5. grading sand and stone.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses french drain drainage structures. Referring to fig. 1, a blind ditch drainage structure includes a blind ditch 1, a geogrid, a drainage pipe 3, and graded sand 5.

Referring to fig. 1, a blind ditch 1 is an inverted trapezoidal groove arranged in a foundation, the geogrid is arranged in the blind ditch 1 in a full length mode, and the geogrid adopts a three-way geogrid, and the thickness of the geogrid is 25 mm; the three-way geogrid has a hollow grid structure and can drain water, so that the geogrid can form a drainage channel together with the drainage perforated pipe 3, the drainage in the blind ditch 1 is more smooth, the geogrid is laid on the bottom surface of the blind ditch 1, and two sides of the geogrid extend to the side wall of the blind ditch 1. The geogrid is wrapped with the geotextile 21, the geotextile 21 positioned on the inner side of the geogrid is set to be permeable geotextile, so that water in the blind ditch 1 can conveniently permeate into the geogrid and can be discharged conveniently, drainage is smoother, and the permeable geotextile can filter fine particles such as soil and the like, so that the problem of unsmooth drainage caused by soil deposition and silting is prevented; the geotextile 21 located outside the geogrid is provided as a waterproof geotextile, which can prevent groundwater from infiltrating into the geogrid.

Referring to fig. 1 and 2, the geogrid includes a plurality of grid units 2, the length of each grid unit 2 is set to be 0.5-1.5m, thread gluing 22 are fixedly arranged on the top surfaces of two ends of each grid unit 2 respectively, the two thread gluing 22 are arranged oppositely, the thread gluing 22 close to each other on the adjacent grid units 2 are mutually overlapped and adhered, so that the adjacent grid units 2 are connected, the two adjacent grid units 2 are connected through the thread gluing 22, the connection is simple and convenient, the disassembly is convenient, and the later recovery is convenient.

Referring to fig. 1, still install trapezoidal ribbing 4 on geogrid, trapezoidal ribbing 4 adopts phi 6's reinforcing bar to make, and trapezoidal ribbing 4 evenly sets up along geogrid's length direction interval, and adjacent trapezoidal ribbing 4 interval 500mm places trapezoidal ribbing 4 in geogrid top, and trapezoidal ribbing 4 can play the design effect to geogrid to can strengthen geogrid's structural strength.

The drainage perforated pipe 3 is arranged on the trapezoidal press rib 4, the drainage perforated pipe 3 is positioned in the middle of the bottom surface of the trapezoidal press rib 4, and the drainage perforated pipe 3 and the trapezoidal press rib 4 are bound and fixed by binding wires; the plurality of the drainage floral tubes 3 are also provided, and the adjacent drainage floral tubes 3 are connected through a pipe hoop (not shown in the figure).

The graded gravel 5 is filled into the blind ditch 1, the top surface of the graded gravel 5 is filled to the top surface level of the blind ditch 1, and the graded gravel 5 can play a role in filtering, so that soil is prevented from permeating into a drainage channel formed by the drainage floral tube 3 and the geogrid, and drainage in the blind ditch 1 is smoother.

The implementation principle of a blind ditch drainage structure in the embodiment of the application is as follows: through set up geogrid in french drain 1, and parcel geotechnological cloth 21 on the geogrid, make the geogrid play the effect of filter layer, reduce fine particle seepage flow emission such as earth, it is not smooth to avoid fine particle deposition such as earth to cause the drainage, and through setting up the geogrid into the assembled geogrid that the concatenation of a plurality of grid units 2 formed, and set up drainage floral tube 3 into the multistage, thereby be convenient for ann tears open, after the construction finishes, be convenient for retrieve, in order to treat used repeatedly, construction cost has been practiced thrift.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (7)

1. A blind ditch drainage structures which characterized in that: including french drain (1), lead to long being provided with geogrid in french drain (1), geogrid is followed french drain (1) lateral wall and bottom surface set up, geogrid parcel has geotechnological cloth (21) that permeates water, the geogrid top is provided with drainage floral tube (3), french drain (1) is filled with level and is joined in marriage grit (5).

2. A blind ditch drainage structure according to claim 1, wherein: the geogrid comprises a plurality of grid units (2), thread gluing (22) are fixedly arranged on the top surfaces of two end faces of the grid units (2) respectively, and the thread gluing (22) are arranged oppositely.

3. A blind ditch drainage structure according to claim 2, wherein: the length of the grid unit (2) is 0.5-1.5 m.

4. A blind ditch drainage structure according to claim 1, wherein: the geogrid is a three-way geogrid.

5. A blind ditch drainage structure according to claim 1, wherein: the thickness of the geogrid is 25 mm.

6. A blind ditch drainage structure according to claim 1, wherein: the top surface of the geogrid is covered with a trapezoidal pressing rib (4).

7. A blind ditch drainage construction according to claim 6, wherein: and the trapezoidal pressing rib (4) is bound and fixed with the geogrid.

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