CN214090012U - Blind ditch connecting device with different height differences between high-low cross-platform sections - Google Patents
Blind ditch connecting device with different height differences between high-low cross-platform sections Download PDFInfo
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- CN214090012U CN214090012U CN202022928000.1U CN202022928000U CN214090012U CN 214090012 U CN214090012 U CN 214090012U CN 202022928000 U CN202022928000 U CN 202022928000U CN 214090012 U CN214090012 U CN 214090012U
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Abstract
本实用新型涉及地下盲沟疏排水的技术领域，公开了高低跨台区间不同高差的盲沟连接装置，包括HDPE管，所述HDPE管设置在上部台地和下部台地之间的台地肥槽内，上部台地设有上部台地盲沟，下部台地设有下部台地盲沟；所述HDPE管的上端与所述上部台地盲沟连接，所述HDPE管的下端与所述下部台地盲沟连接。通过设置在上部台地和下部台地之间台地肥槽内的HDPE管，一端连接上部台地盲沟，另一端连接下部台地盲沟；当上部台地盲沟内水位上升至HDPE管上端管口时，上部台地盲沟内的水可通过HDPE管流到下部台地盲沟，通过下部台地盲沟的排水管或自然溢流排出，可节省在上部台地盲沟设置排水管或对其自然溢流的设计。
The utility model relates to the technical field of underground blind ditch drainage and drainage, and discloses a blind ditch connection device with different height difference between high and low cross-platform intervals, comprising HDPE pipes, the HDPE pipes are arranged in a platform fertilizer trough between an upper platform and a lower platform The upper platform is provided with an upper platform blind ditch, and the lower platform is provided with a lower platform blind ditch; the upper end of the HDPE pipe is connected to the upper platform blind ditch, and the lower end of the HDPE pipe is connected to the lower platform blind ditch. Through the HDPE pipe arranged in the platform fertilizer tank between the upper platform and the lower platform, one end is connected to the upper platform blind ditch, and the other end is connected to the lower platform blind ditch; when the water level in the upper platform blind ditch rises to the upper end of the HDPE pipe, the upper The water in the platform blind ditch can flow to the lower platform blind ditch through the HDPE pipe, and be discharged through the drainage pipe or natural overflow of the lower platform blind ditch, which can save the design of setting the drainage pipe or its natural overflow in the upper platform blind ditch.
Description
Technical Field
The patent of the utility model relates to a technical field of drainage is dredged to secret french drain particularly, relates to the french drain connecting device of the different differences in height between the platform is striden to height.
Background
Many projects built according to mountains are faced with pressure brought by slope stability and underground water buoyancy, as a conventional anti-floating measure, the anti-floating anchor rod is developed to the present, the process is mature, the application is wide, but for foundations with higher water heads and more rocks, the number of required anchor rods is large, the cost is high, and the construction in cities is inconvenient.
In the construction process of the Shenzhen Luo lake 'two-line flower arrangement land' hanghu door region transformation project, as the project is built according to the mountain, the outdoor ground forms a large height difference along with the trend of the mountain, and simultaneously the basements are distributed along with the mountain in a staggered platform manner. In the construction process of the drainage pressure reduction anti-floating design, how to solve the problem of connection of the blind ditches between the high and low cross platforms directly determines the drainage effect of the whole anti-floating design. The drainage connecting device which is safe, reliable and easy to construct is adopted in the high-low platform-spanning interval, and is a necessary means for ensuring construction. In the prior art, no consideration is given to a water drainage connection device between high and low transbay sections.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at providing the height and striding the blind ditch connecting device of the different height differences between the platform interval, aim at solving the problem that the blind ditch of the different height differences between the platform interval lacks the connection among the height and stride in the prior art.
The utility model is realized in such a way that the blind ditch connecting devices with different height differences between the high-low platform-spanning areas comprise HDPE pipes, wherein the HDPE pipes are arranged in a platform soil fertilizer groove between an upper platform land and a lower platform land, the upper platform land is provided with an upper platform land blind ditch, and the lower platform land is provided with a lower platform land blind ditch; the upper end of the HDPE pipe is connected with the upper terrace blind ditch, and the lower end of the HDPE pipe is connected with the lower terrace blind ditch.
Further, the HDPE pipe is an HDPE steel wire mesh skeleton plastic drain pipe.
Furthermore, the upper end of the HDPE pipe extends into the upper terrace blind ditch by at least 0.5m, and the lower end of the HDPE pipe extends into the lower terrace blind ditch by at least 0.5 m.
Furthermore, the HDPE pipe is drilled with holes in the upper terrace blind ditch and the lower terrace blind ditch and wrapped with needle-punched geotextile.
Further, the aperture of the flower hole is 10mm, and the number of layers of the needle-punched geotextile is 2.
Further, the HDPE pipes are arranged side by side in pairs.
Further, the diameter of the HDPE pipe is 300-400 mm.
Furthermore, the pipe orifice of the HDPE pipe in the upper terrace blind ditch and the pipe orifice of the HDPE pipe in the lower terrace blind ditch are both provided with protective nets, and the protective nets are provided with meshes.
Furthermore, the upper end of the HDPE pipe is provided with a switch valve.
Furthermore, the upper end of the HDPE pipe is also provided with a water pressure gauge for detecting the water pressure condition in the HDPE pipe.
Compared with the prior art, the blind ditch connecting device with different height differences between the high-low platform-spanning areas provided by the utility model has the advantages that one end is connected with the upper platform-ground blind ditch and the other end is connected with the lower platform-ground blind ditch through the HDPE pipe arranged in the platform-ground fertilizer groove between the upper platform ground and the lower platform ground; when the water level in the upper terrace blind ditch rises to the pipe orifice at the upper end of the HDPE pipe, water in the upper terrace blind ditch can flow to the lower terrace blind ditch through the HDPE pipe and is discharged through the drain pipe or natural overflow of the lower terrace blind ditch, so that the design that the drain pipe is arranged on the upper terrace blind ditch or the drain pipe is naturally overflowed can be saved.
Drawings
Fig. 1 is a schematic cross-sectional view of a blind ditch connecting device with different heights between high and low platform-spanning areas according to the present invention;
FIG. 2 is a schematic view of the arrangement of drainage pipes between the fertilizer grooves of the terrace with the blind ditch connecting device with different heights between the terrace areas;
fig. 3 is a schematic diagram of the distribution of the drilling holes in the HDPE drainage pipe of the blind ditch connecting device with different heights between the high-low platform-spanning areas.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-3, the preferred embodiment of the present invention is shown.
The blind ditch connecting device with different height differences between high and low platform-spanning areas comprises an HDPE pipe 1, wherein the HDPE pipe 1 is arranged in a platform soil fertilizer groove 4 between an upper platform land and a lower platform land, the upper platform land is provided with an upper platform land blind ditch 2, and the lower platform land is provided with a lower platform land blind ditch 3; the upper end of the HDPE pipe 1 is connected with the upper terrace blind ditch 2, and the lower end of the HDPE pipe 1 is connected with the lower terrace blind ditch 3.
In the blind ditch connecting device with different height differences between the high-low platform-spanning intervals, one end of a HDPE pipe 1 arranged in a platform fertilizer groove 4 between an upper platform and a lower platform is connected with an upper platform blind ditch 2, and the other end of the HDPE pipe is connected with a lower platform blind ditch 3; when the water level in the upper terrace blind ditch 2 rises to the pipe orifice at the upper end of the HDPE pipe 1, the water in the upper terrace blind ditch 2 can flow to the lower terrace blind ditch 3 through the HDPE pipe 1 and is discharged through the drain pipe or natural overflow of the lower terrace blind ditch 3, so that the design of arranging the drain pipe or natural overflow of the upper terrace blind ditch 2 can be saved. When a plurality of platforms are spanned in height, the upper platform-ground blind ditches 2 at the high position are connected step by step through HDPE pipes 1 until reaching the lower platform-ground blind ditches 3 at the lowest end, and the uniform drainage treatment is carried out, so that the additional drainage treatment of the upper platform-ground blind ditches 2 at the high position can be saved.
In the transformation project construction process of the Shenzhen Luo lake 'two-line flower arrangement land' shehu region:
1. drainage blind ditch and connecting section layout
In order to solve the drainage problem under different height differences and different drainage capacities in the high-low cross platform region, construction measurement paying-off is firstly carried out by a measurer according to a drainage design drawing. And (3) respectively determining drainage ditches and excavation sidelines of the connecting sections on the ground, additionally arranging construction planes and elevation control piles, and calculating the grooving width and depth according to the groove design and the soil condition, wherein the blind ditches adopted in construction are arranged as shown in figure 1. The transverse blind ditches shown in fig. 1 are main blind ditches, and the longitudinal blind ditches are connecting section blind ditches. And connecting the main blind ditch into the whole blind ditch system to complete the blind ditch drainage design.
2. Construction of drainage blind ditch
The main blind ditch has a trapezoidal section, the length of the upper bottom surface and the lower bottom surface is 1500mm and 900mm, the height is 1500mm, and the slope of the ditch bottom is 0.3%. The blind ditch construction process flow comprises the following steps: measuring lofting, excavating a foundation trench, manually clearing the trench, checking and accepting the trench, laying geotextile, backfilling a broken stone blind ditch, laying a geotechnical drainage pipe, concealing and accepting, wrapping broken stones with geotextile, checking and accepting quality, laying a water guide grid and a polyethylene protective film.
3. Connecting section arrangement for different height differences and different water displacement between high and low cross-platform sections
The project site has three-stage lands, the height drop between the first land and the second land is 4.5m, and the horizontal width of a fertilizer trough connecting the first land and the second land is 5 m; the height difference between the second platform land and the third platform land is 11.2m, and the horizontal width of the fertilizer groove connecting the second platform land and the third platform land is 2 m. In order to meet the requirements of different height differences and different water discharge amounts, two HDPE steel wire mesh framework plastic drain pipes with the diameter of 300mm are adopted between the first platform and the second platform, the two drain pipes are obliquely arranged in the platform soil fertilizer groove 4 between the upper platform and the lower platform in parallel at an angle of 45 degrees and are buried in the backfill soil; two HDPE steel wire mesh framework plastic drain pipes with the diameter of 400mm are adopted between the second and third platforms, and the two drain pipes are vertically arranged in the platform soil fertilizer groove 4 between the upper platform and the lower platform side by side and buried in the backfill soil. 2 HDPE pipes 1 are arranged side by side in pairs between the upper platform land and the lower platform land, so that water in the upper platform land blind ditch 2 can smoothly flow to the lower platform land blind ditch 3, the condition of large water discharge is adapted, the parallel arrangement is also convenient for construction, the construction cost is saved, if one HDPE pipe 1 is damaged or blocked, the other HDPE pipe 1 is used for ensuring water discharge.
HDPE steel mesh skeleton plastics drain pipe should stretch into 0.5m in the french drain at least, and the purpose is that the tip of letting HDPE pipe 1 fully contacts with the water in the french drain. The part of going deep into the HDPE drain pipe in the french drain bores and is equipped with the flower hole to wrap up the acupuncture geotechnical cloth, the purpose is that the flower hole that lets water accessible HDPE pipe 1 in the french drain can both enter into the pipe from each position, direction, or let water in HDPE pipe 1 flow to the french drain of low level easily, specifically see figure 3 in detail, the flower hole aperture of HDPE drain pipe is 10mm, the space interval 50mm, the part outside package that HDPE stretches into in the french drain is equipped with double-deck 250g/m2The anti-geotechnological cloth of straining of (1) prevents that silt etc. from entering into and arousing the jam in HDPE pipe.
4. Fertilizer trench earthwork backfilling
A platform soil fertilizer tank 4 is arranged between the upper platform soil and the lower platform soil, the fertilizer tank is backfilled below the municipal drainage pipe elevation by adopting clay, 6 percent of cement is doped, and the permeability coefficient is not more than 1 multiplied by 10-7And (3) backfilling the crushed stone 1m below the top of the fertilizer tank above the elevation of the municipal drainage pipe, wherein the crushed stone with the particle size of 10-30 mm has good gradation, the mud content is not more than 5%, the sand content is not more than 4%, and poor materials such as construction waste or sludge are forbidden. Before backfilling, impurities in the foundation pit are removed, and the foundation pit is symmetrically backfilled at two sides or the periphery. The backfill of the fertilizer tank should be layered and backfilled with a layered thickness not greater than 500mm and a compaction coefficient not less than 0.93.
An HDPE pipe is a pipe made of high density polyethylene (hereinafter referred to as "HDPE").
The HDPE steel wire mesh framework plastic drain pipe is a novel improved steel framework plastic composite pipe, and the pipe is also called an srtp pipe. It uses high-strength over-plastic steel wire skeleton and thermoplastic plastic polyethylene as raw materials, uses steel wire winding net as skeleton reinforcement of polyethylene plastic pipe, uses high-density polyethylene as matrix, and adopts high-performance HDPE modified adhesive resin to tightly combine the steel wire skeleton with inner and outer layers of high-density polyethylene, so that it has excellent composite effect, and possesses the advantages of steel pipe and plastic pipe.
For the HDPE pipe 1 connecting the upper platform land and the lower platform land, protective nets can be arranged at the pipe openings of the upper platform land blind ditches 2 and the lower platform land blind ditches 3, meshes are arranged on the protective nets, and the protective nets can be made of hard materials, such as iron wires, plastic grids with certain strength and the like, so that the geotechnical cloth wrapped by the pipe openings is prevented from being impacted continuously by water, and the geotechnical cloth is easy to damage; the protective net provides certain internal support for the geotextile wrapped at the pipe orifice, and drainage is not influenced.
At the in-process for HDPE pipe 1 parcel geotechnological cloth, geotechnological cloth wraps up HDPE pipe 1's mouth of pipe and flower hole is whole, prevents that silt, rubble from getting into HDPE pipe 1 and arousing the jam. The position department of fixing geotechnological cloth at HDPE pipe 1 is equipped with pit or recess, is convenient for firmly fix geotechnological cloth on HDPE pipe 1 with ribbon, strake etc. prevents to drop.
The upper end of the HDPE pipe 1 is provided with a switch valve for switching the HDPE pipe 1 on and off, so that the HDPE pipe 1 is temporarily closed when the HDPE pipe 1 or the lower platform blind ditch 3 needs to be maintained and processed.
Still be equipped with the water pressure gauge in HDPE pipe 1's upper end for detect the water pressure condition in HDPE pipe 1, see the water pressure condition directly perceivedly, so that see abnormal conditions if water pressure exceeds standard, in time do emergency treatment, for example water volume is too big in the 2 upper portion platform ground french drains, can't in time discharge, lead to water pressure to exceed standard, can promptly carry out drainage processing to upper portion platform ground french drain 2 with the water pump, guarantee the safety of building.
The utility model discloses simple process, the construction is easy, has solved the height and has striden the drainage problem under the interval different difference in height and the different displacement. The blind ditches between the upper platform and the lower platform are reasonably connected, so that the normal operation of a high-low cross-platform interval gravel dredging and drainage system can be ensured, and the effectiveness of a natural overflow drainage method is ensured.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The blind ditch connecting device with different height differences between high and low platform-spanning areas is characterized by comprising an HDPE pipe, wherein the HDPE pipe is arranged in a platform soil fertilizer groove between an upper platform land and a lower platform land, the upper platform land is provided with an upper platform land blind ditch, and the lower platform land is provided with a lower platform land blind ditch; the upper end of the HDPE pipe is connected with the upper terrace blind ditch, and the lower end of the HDPE pipe is connected with the lower terrace blind ditch.
2. The blind ditch connecting device for different heights between high and low straddling sections as claimed in claim 1, wherein the HDPE pipe is a HDPE steel wire mesh skeleton plastic drain pipe.
3. The blind ditch connecting device for different heights between high and low trans-platform zones as claimed in claim 2, wherein the upper end of the HDPE pipe extends into the upper terrace blind ditch by at least 0.5m, and the lower end of the HDPE pipe extends into the lower terrace blind ditch by at least 0.5 m.
4. The blind ditch connecting device with different heights between the high-bay and the low-bay areas as claimed in claim 3, wherein the HDPE pipe is provided with holes drilled in the upper terrace blind ditch and the lower terrace blind ditch and wrapped with needle-punched geotextile.
5. The blind ditch connecting device for different heights between high and low straddling areas of claim 4, wherein the hole diameter of the flower hole is 10mm, and the number of the needle-punched geotextile layers is 2.
6. A blind ditch connection device of different heights between high and low straddling sections as claimed in any one of claims 1 to 5, wherein the HDPE pipes are arranged side by side in pairs.
7. The blind trench connection device for different height differences between high and low trans-platform regions as claimed in any one of claims 1 to 5, wherein the HDPE pipe has a diameter of 300 and 400 mm.
8. The blind ditch connecting device for different heights between high and low terraced regions as claimed in any one of claims 1 to 5, wherein the pipe orifice of the HDPE pipe in the upper terraced blind ditch and the pipe orifice of the HDPE pipe in the lower terraced blind ditch are provided with protective nets, and the protective nets are provided with meshes.
9. A blind ditch connecting device of different heights between high and low straddling areas as claimed in any one of claims 1 to 5, wherein the upper end of the HDPE pipe is provided with a switch valve.
10. The blind ditch connecting device for different heights between high and low straddling areas as claimed in any one of claims 1 to 5, wherein the upper end of the HDPE pipe is further provided with a water pressure gauge for detecting the water pressure condition in the HDPE pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022928000.1U CN214090012U (en) | 2020-12-09 | 2020-12-09 | Blind ditch connecting device with different height differences between high-low cross-platform sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022928000.1U CN214090012U (en) | 2020-12-09 | 2020-12-09 | Blind ditch connecting device with different height differences between high-low cross-platform sections |
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| Publication Number | Publication Date |
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| CN214090012U true CN214090012U (en) | 2021-08-31 |
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| CN202022928000.1U Expired - Fee Related CN214090012U (en) | 2020-12-09 | 2020-12-09 | Blind ditch connecting device with different height differences between high-low cross-platform sections |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116084465A (en) * | 2022-12-01 | 2023-05-09 | 中国建筑第七工程局有限公司 | Waterproof step-type drainage integrated structure for basement outer wall and construction method |
-
2020
- 2020-12-09 CN CN202022928000.1U patent/CN214090012U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116084465A (en) * | 2022-12-01 | 2023-05-09 | 中国建筑第七工程局有限公司 | Waterproof step-type drainage integrated structure for basement outer wall and construction method |
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Granted publication date: 20210831 |