CN211113593U - Be applied to collection drainage blind pipe of slope prevention of seepage - Google Patents
Be applied to collection drainage blind pipe of slope prevention of seepage Download PDFInfo
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- CN211113593U CN211113593U CN201921261183.7U CN201921261183U CN211113593U CN 211113593 U CN211113593 U CN 211113593U CN 201921261183 U CN201921261183 U CN 201921261183U CN 211113593 U CN211113593 U CN 211113593U
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- blind pipe
- hollow cylinder
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
A drainage collecting blind pipe applied to slope seepage prevention is provided with a compression-resistant supporting structure, a messy pipe wall, a PVC semi-circular pipe and a spinning geotechnical filter membrane from the center of the blind pipe to the outside in sequence; the compression-resistant supporting structure is an integrated structure consisting of a piston shaft, a rubber piston, a hollow cylinder, supporting inclined plates and arc sheets, wherein the upper part and the bottom of the piston are fixedly connected with the piston shaft and the hollow cylinder respectively, the top part of the piston shaft and the bottom part of the hollow cylinder are connected with two supporting inclined plates respectively, the end head of each supporting inclined plate is fixedly connected with the arc sheet tangent to the inner wall of the wire-tangling type pipe wall, and the arc sheet is provided with water permeable holes; the PVC semicircular pipe is externally attached to the outer wall of the silk-disturbing type pipe wall; the spinning geomembrane is wrapped on the outer surface of the messy yarn type pipe wall. The utility model discloses compressive strength is strong, especially is difficult to warp under the vertical load effect at the exogenic action to improved the drainage effect, and collected the moisture in the blind pipe and can not continue to ooze down, thereby reach good water-collecting effect.
Description
Technical Field
The utility model belongs to the technical field of the underground drainage that collects among the landslide improvement engineering, in particular to be applied to collection drainage blind pipe of slope prevention of seepage.
Background
China is a country with serious landslide disasters, the landslide disasters directly influence the life and property safety of people, particularly, deep and thick soft soil layers are generally and widely distributed in coastal areas, the soil layers have the characteristics of large pore ratio, high natural water content, low strength, poor shear strength and the like, even if the slope rate of the side slope is relatively slow, the whole instability of a potential sliding surface in the side slope can be generated due to surface water infiltration in the rainfall process, and further serious landslide accidents are caused, so the side slope seepage prevention is particularly important.
The drainage blind pipe for preventing seepage of side slope is made up by using synthetic fibre, plastics and synthetic rubber as raw material and adopting different processes, and its main structure is formed from floss-type pipe wall and external-covering finished geotextile, and its main defect lies in that ① is very low in compression strength, and is very easy to deform under the action of external force, specially under the action of vertical load, so that its drainage effect is reduced, ② surface water is easy to continuously seep into the blind pipe, so that it can not obtain good water-collecting action, and its drainage effect is poor, and ③ is not tight in combination with pipe wall, and its pipe wall is easy to sink, so that it can reduce drainage effect.
The Chinese patent 'composite water collecting and draining blind pipe' (patent number Z L200410013820.0) discloses a composite water collecting and draining blind pipe which utilizes the tension of a spring to tightly contact a spring lining with a wire-disorderly pipe wall so as to enhance the compressive strength of the blind pipe.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be applied to collection drainage blind pipe of slope prevention of seepage, this drainage blind pipe compressive strength is strong, especially is difficult to warp under the vertical load effect at the exogenic action to improved the drainage effect, and collected the moisture in the blind pipe and can not continue to ooze down, thereby reach good water-collecting effect.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be applied to collection drainage blind pipe of slope prevention of seepage which characterized in that: the compression-resistant supporting structure, the messy pipe wall, the PVC semi-circular pipe and the spinning geotechnical filter membrane are arranged from the center of the blind pipe to the outside in sequence; the compression-resistant supporting structure is an integrated structure consisting of a piston shaft, a rubber piston, a hollow cylinder, supporting inclined plates and arc sheets, wherein the upper part and the bottom of the piston are fixedly connected with the piston shaft and the hollow cylinder respectively, the top part of the piston shaft and the bottom part of the hollow cylinder are connected with two supporting inclined plates respectively, the end head of each supporting inclined plate is fixedly connected with the arc sheet tangent to the inner wall of the wire-tangling type pipe wall, and the arc sheet is provided with water permeable holes; the PVC semicircular pipe is externally attached to the outer wall of the silk-disturbing type pipe wall; the spinning geomembrane comprises a geotextile layer and a synthetic fiber layer, wherein the geotextile layer is wrapped on the outer surface of the messy fiber type pipe wall, and the synthetic fiber layer is compounded on the geotextile layer.
The messy pipe wall is made of plastic wires extruded by an extruding machine and is disturbed when the plastic wires are formed, the porosity of the plastic wires is 70-90%, and the diameter of the plastic wires is 1-3 mm.
The supporting sloping plate, the piston shaft, the hollow cylinder and the arc sheet are of an integral structure, and small rectangular sloping sections with the same size as the cross section of the supporting sloping plate are cut on the connecting surfaces of the supporting sloping plate, the piston shaft, the hollow cylinder and the arc sheet.
The supporting inclined plates form an included angle of 45 degrees with the horizontal direction.
The thickness of the arc sheet is 2mm, and a plurality of water permeable holes with the diameter of 3mm are uniformly arranged on the arc sheet.
The contact surface area of each arc thin sheet and the inner wall of the random-filament type pipe is 12cm2。
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses owing to increased resistance to compression bearing structure and made its compressive strength improve greatly, the drainage space has obtained the assurance again simultaneously, has improved the effect and the reliability of collection drainage greatly.
2. By the utility model discloses in having increased the PVC semicircle pipe, can prevent that surface water from infiltrating into and oozing into behind the blind pipe because of continuing to infiltrate down and can't be well through the condition of blind pipe exhaust, especially the rainfall infiltrates into the side slope, can effectual collection side slope perpendicular infiltrates surface water and with its water conservancy diversion drainage through the PVC semicircle pipe, reach and collect the drainage effect well, prevent the appearance of landslide.
3. The utility model discloses because the surface spouts a tub of geomembrane and combines closely and not have the seam with indiscriminate silk formula pipe wall, solved because of traditional outsourcing geotechnological cloth and the pipe wall between the combination not closely in the drawback that becomes the pipe wall invagination influence collection drainage effect, the short fiber acupuncture geotechnological cloth that adopts has ageing resistance, acid and alkali-resistance moreover, stand wear and tear, toughness good, the simple and convenient characteristics of construction, effectively improved the life of blind pipe.
Drawings
Fig. 1 is a schematic axial section of the present invention;
fig. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a front view of the compressive support structure of the present invention;
FIG. 4 is a schematic view of a circular arc sheet of the present invention;
fig. 5 is a top view of the compression resistant support structure of the present invention;
FIG. 6 is a cross-sectional view of a blind arrangement;
fig. 7 is a top view of a blind arrangement.
In the figure: 1 is a compression resistant support structure; 2 is a floss type pipe wall; 3 is PVC semi-circular pipe; 4 is a spinning geomembrane; 5 is a piston shaft; 6, a piston; 7 is a cylinder; 8 is a supporting inclined plate; 9 is a circular arc sheet; 10 is a water permeable hole; 11 is a small rectangular cross-section; 12 is a ramp.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the examples of the present invention.
Referring to fig. 1-4, in the embodiment of the present invention, a drainage collecting blind pipe structure for slope seepage prevention is provided, which comprises a pressure-resistant support structure 1, a floss pipe wall 2, a PVC semi-circular pipe 3 and a spinning geomembrane 4 arranged in sequence from the center of the blind pipe to the outside.
The messy pipe wall 2 is made of plastic wires extruded by an extruding machine and is disturbed when the plastic wires are formed, the porosity of the plastic wires is 70-90%, and the diameter of the plastic wires is 1mm-3 mm.
And secondly, the compression-resistant supporting structure 1 is a closed injector type integrated structure consisting of a piston shaft 5, a rubber piston 6, a hollow cylinder 7, a supporting inclined plate 8 and an arc sheet 9. Wherein the top of the piston shaft 5 and the bottom of the hollow cylinder 7 are respectively connected with two supporting inclined plates 8, the ends of the supporting inclined plates 8 are fixedly connected with arc sheets 9 which are closely tangent to the inner wall of the messy wire type pipe wall 2, and the arc sheets 9 are uniformly provided with a plurality of water permeable holes 10 with the diameter of 3mm, so that the water seepage effect of the messy wire type pipe wall 2 can be effectively prevented from being influenced by the contact surface. The arc sheet 9 and the inner wall of the tangential messy silk wall 2 are tightly stuck together by strong waterproof glue (KEYDAK glue).
The support swash plate 8 is integrative with piston shaft 5, blank cylinder 7 and circular arc thin slice 9, and all cut on the connection face of three and support swash plate 8 with the little rectangle bias cross-section 11 that supports the equal size in 8 cross-sections of swash plate so that better fixed connection, play better supporting effect, improve the lodging resistance ability of blind pipe. And the inclined supporting plates 8 form an included angle of 45 degrees with the horizontal direction, so that the space in the supporting pipe is as large as possible, and a better water collecting and draining effect is achieved.
The thickness of the arc sheet 9 is about 2mm, and the area of the contact surface of the arc sheet and the messy wire type pipe wall 2 is 12cm2。
All components of the pressure-resistant support structure 1, except for the rubber piston 6, are made of high-strength, tough, corrosion-resistant PC plastic.
And thirdly, the PVC semi-circular pipe 3 is tightly attached to the outer wall of the random wire type pipe wall 2, and the PVC semi-circular pipe and the random wire type pipe wall are tightly adhered together by waterproof super glue (KEYDAK glue).
And fourthly, the spinning geomembrane 4 is prepared by tightly wrapping a geotextile layer on the outer surface of the random fiber type pipe wall 2 and then spraying a synthetic fiber layer.
The utility model discloses a theory of operation is: the water in the soil around the blind pipe arranged on the side slope shallow soil layer is quickly collected by the blind pipe through the capillary action, the gravity action and the seepage action and is guided out of the slope through the blind pipe middle channel, particularly, the water infiltrated into the earth surface of the side slope can be quickly collected by the blind pipe and is discharged out of the slope during rainfall, and the water collecting and discharging process is completed.
The compression-resistant supporting structure 1 mainly plays a role in supporting the floss-mixing type pipe wall 2, the PVC semi-circular pipe 3 and the spinning geotechnical filter membrane 4, the piston 6 in the compression-resistant supporting structure 1 can move along with the movement of the piston shaft 5 under the action of pressure, and because the air in the hollow cylinder 7 at the lower part of the piston 6 is closed, the elastic supporting effect of the compression-resistant supporting structure can be realized by utilizing the compressibility of gas, and the compression strength of the blind pipe is effectively improved. The supporting inclined plate 8, the piston shaft 5, the hollow cylinder 7 and the arc sheet 9 are integrated, and small rectangular inclined sections 11 with the same size as the cross section of the supporting inclined plate 8 are cut on the connection surfaces of the three and the supporting inclined plate 8 so as to be fixedly connected better, so that a better supporting effect is achieved, and the anti-lodging capability of the blind pipe is improved. The inclined supporting plates 8 form an included angle of 45 degrees with the horizontal direction, so that the space in the supporting pipe is as large as possible, and a better water collecting and draining effect is achieved. The circular arc sheet 9 is provided with water permeable holes 10 for effectively preventing the water seepage effect of the wire-disordering type pipe wall 2 from being influenced because the contact surface is impermeable.
The messy pipe wall 2 mainly plays a role of supporting the spinning geotechnical filter membrane 4, and meanwhile, the messy pipe wall 2 has larger gaps for allowing surface infiltration water and underground water to freely enter.
The spinning geomembrane 4 mainly plays a role in filtering water and prevents soil particles and other impurities from entering the blind pipe.
The utility model discloses a work progress is: the compression-resistant support structures 1 are arranged in the blind pipes at intervals of 30-45cm, the spacing is selected according to the actual soil mass condition, if the self weight of the soil mass above the blind pipes 11 is large or the load of the upper structure of the side slope 12 is large, the compression-resistant support structures 1 are arranged in the blind pipes at intervals of about 30cm, and otherwise, the compression-resistant support structures are arranged at intervals of about 45 cm. The blind pipes 11 are arranged along the slope 12 in a through manner, the distance between the blind pipes 11 and the slope 12 is 30-50cm, and if construction needs, the slope 12 can be cut and processed properly in advance. The distance between the blind pipes 11 and the blind pipes 11 is about 60cm, and the blind pipes can be properly adjusted according to the actual environment. In addition, the blind pipe is convenient to construct, the quality of the blind pipe can be periodically detected, and the blind pipe can be replaced when necessary.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. The utility model provides a be applied to collection drainage blind pipe of slope prevention of seepage which characterized in that: the compression-resistant supporting structure, the messy pipe wall, the PVC semi-circular pipe and the spinning geotechnical filter membrane are arranged from the center of the blind pipe to the outside in sequence; the compression-resistant supporting structure is an integrated structure consisting of a piston shaft, a rubber piston, a hollow cylinder, supporting inclined plates and arc sheets, wherein the upper part and the bottom of the piston are fixedly connected with the piston shaft and the hollow cylinder respectively, the top part of the piston shaft and the bottom part of the hollow cylinder are connected with two supporting inclined plates respectively, the end head of each supporting inclined plate is fixedly connected with the arc sheet tangent to the inner wall of the wire-tangling type pipe wall, and the arc sheet is provided with water permeable holes; the PVC semicircular pipe is externally attached to the outer wall of the silk-disturbing type pipe wall; the spinning geomembrane comprises a geotextile layer and a synthetic fiber layer, wherein the geotextile layer is wrapped on the outer surface of the messy fiber type pipe wall, and the synthetic fiber layer is compounded on the geotextile layer.
2. The water collecting and draining blind pipe applied to slope seepage control according to claim 1, is characterized in that: the messy pipe wall is made of plastic wires extruded by an extruding machine and is disturbed when the plastic wires are formed, the porosity of the plastic wires is 70-90%, and the diameter of the plastic wires is 1-3 mm.
3. The water collecting and draining blind pipe applied to slope seepage control according to claim 1, is characterized in that: the supporting sloping plate, the piston shaft, the hollow cylinder and the arc sheet are of an integral structure, and small rectangular sloping sections with the same size as the cross section of the supporting sloping plate are cut on the connecting surfaces of the supporting sloping plate, the piston shaft, the hollow cylinder and the arc sheet.
4. The water collecting and draining blind pipe applied to slope seepage control according to claim 1, is characterized in that: the supporting inclined plates form an included angle of 45 degrees with the horizontal direction.
5. The water collecting and draining blind pipe applied to slope seepage control according to claim 1, is characterized in that: the thickness of the arc sheet is 2mm, and a plurality of water permeable holes with the diameter of 3mm are uniformly arranged on the arc sheet.
6. The water collecting and draining blind pipe applied to slope seepage control according to claim 1, is characterized in that: the contact surface area of each arc thin sheet and the inner wall of the random-filament type pipe is 12cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921261183.7U CN211113593U (en) | 2019-08-06 | 2019-08-06 | Be applied to collection drainage blind pipe of slope prevention of seepage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921261183.7U CN211113593U (en) | 2019-08-06 | 2019-08-06 | Be applied to collection drainage blind pipe of slope prevention of seepage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211113593U true CN211113593U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921261183.7U Expired - Fee Related CN211113593U (en) | 2019-08-06 | 2019-08-06 | Be applied to collection drainage blind pipe of slope prevention of seepage |
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| Country | Link |
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| CN (1) | CN211113593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565621A (en) * | 2019-08-06 | 2019-12-13 | 天津城建大学 | Be applied to collection drainage blind pipe of slope prevention of seepage |
-
2019
- 2019-08-06 CN CN201921261183.7U patent/CN211113593U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565621A (en) * | 2019-08-06 | 2019-12-13 | 天津城建大学 | Be applied to collection drainage blind pipe of slope prevention of seepage |
| CN110565621B (en) * | 2019-08-06 | 2024-08-30 | 天津城建大学 | Water collecting and draining blind pipe applied to side slope seepage prevention |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20210806 |
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| CF01 | Termination of patent right due to non-payment of annual fee |