CN109356259B - Composite slope rapid trough structure and construction method - Google Patents
Composite slope rapid trough structure and construction method Download PDFInfo
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- CN109356259B CN109356259B CN201811393067.0A CN201811393067A CN109356259B CN 109356259 B CN109356259 B CN 109356259B CN 201811393067 A CN201811393067 A CN 201811393067A CN 109356259 B CN109356259 B CN 109356259B
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 56
- 238000009412 basement excavation Methods 0.000 claims abstract description 16
- 238000005266 casting Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 6
- 239000008397 galvanized steel Substances 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 37
- 238000000034 method Methods 0.000 abstract description 9
- 238000009991 scouring Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/12—Geometrical or physical properties corrugated
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to the technical field of road and bridge, water conservancy and hydropower and geotechnical engineering slope protection, in particular to a novel composite slope rapid trough structure. The device comprises an external support body and an internal energy dissipation body, wherein the external support body is provided with a groove, and concave-convex waves are arranged in the groove; the internal energy dissipation body is a corrugated pipe with the cross section identical to the cross section of the groove of the external support body, the internal energy dissipation body is fixedly arranged in the groove of the external support body, and the corrugations of the internal energy dissipation body and the corrugations on the external support body can be buckled with each other in a concave-convex manner. The rapid trough has the advantages of simple and practical structure, high efficiency and economy, difficult scouring damage to the concrete of the bottom plate of the trough, long service life, short construction period, simple construction process and stable integral structure, and is mainly suitable for geotechnical engineering slope drainage engineering with excavation gradient of more than 45 degrees in rainy areas.
Description
Technical Field
The invention relates to the technical field of road and bridge, water conservancy and hydropower and geotechnical engineering slope protection, in particular to a novel composite slope rapid trough structure and a construction method.
Background
Earth and stone excavation engineering is commonly used in the fields of civil engineering, water conservancy and mines, and along with the construction of earth and stone engineering in each field, earth and stone excavation technology is widely applied. When the topography of the earth-rock engineering is steeper, in order to avoid the formation of hundred-meter-level slope by excavation, a steep excavation (the excavation gradient is greater than 45 degrees) mode is generally adopted in the actual construction process, and the excavation height of the slope is controlled below 50m (the slope level is not greater than 5 levels and the slope height of each level is 10 m). Engineering practice shows that: for the multistage steep side slope, particularly for a rainy region, how to effectively drain and guide slope catchment, the method for preventing rainfall from scouring and damaging the side slope is important to ensuring local and overall stability of the side slope.
The slope drainage engineering mainly adopts a combined mode of a catwalk drainage ditch and a rapid trough to drain the slope catchment. The rapid trough adopts three structural devices of a concrete rectangular ditch without steps, a concrete rectangular ditch with steps and a semicircular galvanized steel pipe with waves, and the three structural devices are mainly used for steep slope drainage in a rainy area, and mainly have the following problems:
(1) For the structural device of the concrete rectangular ditch without steps, as the slope of the excavation slope is larger than 45 degrees, the flow speed of water flow in the rapid trough can reach 20m/s, the structural device belongs to high-speed water flow, the water flow can seriously scour the concrete of the bottom plate of the rectangular ditch, and especially when the sand content of catchment is larger than 2kg/m 3, the scour is more serious. The thickness of the concrete lining of the rectangular ditch bottom plate gradually thins along with water flow scouring, and for a rainy region, the rapid trough is in a water passing state for a long time, so that the thinning speed of the concrete bottom plate lining is higher. Actual engineering shows that along with the thickness thinning of the bottom plate concrete, under the action of high water flow power, water flow in a ditch has the possibility of water seepage along the weak surface of the concrete to the inner side of the slope, and even the water flow is broken by high-speed water flow, so that the slope drainage system is finally disabled. In summary, the service life of the rapid trough structure device of the concrete rectangular trough without steps is very limited, and the concrete bottom plate can be flushed for a long time due to high-speed water flow, so that water seepage in the trough or the trough body is flushed, the slope drainage system is invalid, and the local or whole instability of the side slope is further caused.
(2) A structural device of a concrete rectangular ditch with steps. The step energy dissipation test shows that the step energy dissipation rate can reach 80%, the flow speed of water flow in the ditch can be reduced by 10m/s, the scouring of the water flow to the concrete of the bottom plate in the ditch is effectively reduced, and the service life of the rapid trough is ensured. However, the construction process of the structural device is complex, and the construction period is long. The main expression is as follows: ①: on average, 50 step frame vertical templates are needed to be added for each grade of side slope to work; ② In order to ensure that the bottom plate is effectively connected with the steps, the steps are prevented from sliding along the 'bottom plate and the cold joint of step construction', and the two are connected through binding dowel bars. Engineering practice shows that the rapid trough adopting the structural device of the concrete rectangular ditch with the steps is 3 times longer than that of the structural device of the concrete rectangular ditch without the steps, and the construction period of each level of side slope is 3 times longer. For the multi-stage steep slope surface drainage engineering in a rainy region, the slope surface drainage system is required to be completed in a short time after the excavation of the bare slope is completed in order to reduce the flushing time of the bare slope by heavy rain as much as possible. It is obvious that the "concrete rectangular ditch with steps" rapid trough structure device hardly meets the actual engineering requirements.
(3) A semicircular galvanized steel pipe structure device with corrugation. The corrugated structure has the same steps, has a good energy dissipation effect, and can ensure the service life of the rapid trough. However, the structural device is easy to permeate water to the slope, so that the integral instability of the structure is caused. In actual engineering, the anchor rod passes through the reserved hole of the corrugated pipe to fix the corrugated pipe in the slope groove. Engineering practice shows that: once the sealing measures of the reserved holes of the corrugated pipe fail, water flow directly permeates into the slope along the gaps of the reserved holes, and the undisturbed grooves of the slope are flushed, so that the corrugated pipe foundation is hollowed out, the whole rapid launder is unstable, the slope drainage system fails, and local or whole instability of the slope is caused.
Technical proposal
The technical problem that this patent will solve is: the multi-stage steep slope rapid trough structure applied to the rainy region at present has the following problems: the concrete of the groove bottom plate is easy to be scoured and damaged, the service life is limited, the construction period is long, the construction process is complex, and the whole structure is easy to be unstable, so that the local and the whole stability of the slope are directly affected.
To the problem that exists among the above-mentioned prior art, this patent provides a simple and practical, high-efficient economical combined type side slope rapid trough structure, is mainly applicable to the rainy district, excavates the slope of geotechnical engineering slope drainage engineering that the slope is greater than 45.
The specific technical scheme of the patent is as follows:
The novel composite slope rapid trough structure comprises an external support body and an internal energy dissipation body, wherein a groove is formed in the external support body, and continuous concave-convex waves are longitudinally formed in the groove; the inner energy dissipation body is a corrugated pipe with the cross section being the same as the cross section of the groove of the outer support body, and continuous concave-convex corrugations are longitudinally arranged on the inner energy dissipation body; the inner energy dissipation body is fixedly arranged in the groove of the outer support body, and the corrugation of the inner energy dissipation body and the corrugation on the outer support body can be buckled with each other in a concave-convex manner. The external support body has the functions of: the whole device is guaranteed to be located on an undisturbed foundation, and the whole structure is guaranteed to be stable; the function of the internal energy dissipater is: the flow velocity of water in the rapid trough is reduced, high-speed water flow in the trough is prevented, and the service life of the rapid trough is prolonged through the energy dissipation effect of the energy dissipation body.
Preferably, the external support body and the internal energy dissipation body are glued together through concrete, so that the fixing effect is good, and the structure is more stable.
Preferably, the external support body is of a concrete structure, so that water can be prevented from flowing to the excavation slope surface to infiltrate, and the whole structure is stable.
Preferably, the bottom of the external support body is provided with a concrete base, the thickness of the concrete base is 10cm, and water can be prevented from flowing into the excavation slope surface to infiltrate.
Preferably, the internal energy dissipation bodies are longitudinally arranged along the grooves of the external support body, two adjacent internal energy dissipation bodies are fixedly connected through bolts, connecting holes are reserved at the left end and the right end of each internal energy dissipation body, connecting bolts penetrate through the connecting holes, and the connecting between the internal energy dissipation bodies is realized through corrugated connection with nuts. The length adjustment of the internal energy dissipater along the water flow direction under the condition of different slope changing lengths can be satisfied.
Preferably, the cross section of the groove on the outer support body is semicircular.
Preferably, the internal energy dissipater is a semicircular galvanized steel pipe provided with corrugations.
Preferably, the longitudinal section of the internal energy absorber is wavy, the wave height is 5cm, the half-period wave length is 6cm, and the wall thickness is 3mm.
Preferably, the outer support groove is gradually inclined downward in the length direction.
The invention also discloses a construction method of the novel composite slope rapid trough structure, which comprises the following steps:
(1) Digging a rapid trough: determining the position of a lofting rapid trough according to the requirements of a construction drawing, and digging a trough on a side slope, wherein the size of the trough digging is the same as that of an external support body of the rapid trough;
(2) And (3) manufacturing an internal energy dissipation body: determining the number of internal energy dissipaters according to the actual excavation length of each grade of side slope, drilling holes at two ends of the internal energy dissipaters, manufacturing reserved connecting holes, penetrating connecting bolts through the reserved connecting holes, and connecting and manufacturing the internal energy dissipaters by corrugated connection with nuts;
(3) And (3) concrete pouring of the outer support base: taking the groove of which the slope is excavated in the step 1 as a concrete external support base template, and casting concrete on site, wherein the casting thickness is 10cm;
(4) And (3) pouring concrete on the upper structure of the support body: and (3) placing the internal energy dissipation body manufactured in the step (2) above the external support body base manufactured in the step (3) to serve as an inner side template of the upper structure of the external support body, and casting the upper structure of the external support body on site.
Advantageous effects
The utility model discloses a novel combined type side slope rapid trough structure, better solution be applied to the multistage abrupt side slope rapid trough structure in many rain areas at present, there are slot bottom plate concrete easily by erodeing to destroy, life is limited, construction period is long, construction technology is complicated, the whole easy unstability problem of structure, and then influence a series of problems such as slope part and whole stability. With traditional rapid trough structure device, this patent rapid trough device has following outstanding advantage:
(1) Compared with the traditional concrete rectangular ditch rapid trough device without steps:
The traditional device has the problem that high-speed water flow damages the concrete scouring of the bottom plate of the rapid trough, thereby shortening the service life of the rapid trough. The device disclosed by the invention adopts the corrugation to dissipate energy of water flow in the rapid trough, has a good energy dissipation effect, can reduce the water flow in the rapid trough from 20m/s to 10m/s, and greatly reduces the possibility of scouring and damaging the concrete of the bottom plate in the trough by high-speed water flow, thereby ensuring the service life of the rapid trough.
(2) Compared with the traditional concrete rectangular ditch rapid trough device with steps:
Because the traditional device needs to be added with the construction process of erecting the step templates and binding the steel bars at the bottom of the ditch, the construction process is complex, the construction period is long, and the engineering requirements are difficult to meet. The device has simple construction process and short construction period, does not need to increase the construction process of erecting the step templates and binding the steel bars at the bottom of the ditch, can realize connection by cementing the corrugated concrete of the grooves of the external support body and the internal energy dissipation body, is convenient and quick to construct, and can meet the requirements of actual engineering on the construction period of the rapid trough.
(3) Compared with the traditional semicircular galvanized steel pipe rapid trough device with corrugation:
The traditional device is easy to cause water flow direction slope infiltration, and the problem of structural integral instability is caused. The internal energy dissipation body of the device is located to the original groove foundation through the external support body, and is not directly located to the original groove foundation, so that the problem that water flows to the excavation slope surface to infiltrate is avoided, and the whole structure is stable.
Drawings
FIG. 1 is a schematic perspective view of a rapid trough according to embodiment 1 of the present disclosure;
FIG. 2 is a schematic perspective view of the internal energy absorber according to example 1 of the present patent;
FIG. 3 is a schematic perspective view of the rapid trough according to embodiment 2 of the present disclosure;
Fig. 4 is a schematic perspective view of the external support body according to embodiment 2 of the present disclosure;
FIG. 5 is a schematic view of a longitudinal section A-A of the rapid trough according to example 2 of this patent;
FIG. 6 is a schematic view of a B-B cross-sectional structure of the rapid trough according to example 2 of this patent;
FIG. 7 is a schematic view of the cross-sectional structure of the rapid trough according to example 2 of this patent;
FIG. 8 is a schematic structural view of the connection between two adjacent internal energy dissipaters according to embodiment 2 of the present patent application;
in the figure, 1: an outer support; 2: an internal energy dissipater; 3: a groove; 4: concave-convex corrugation; 5: a concrete base; 6: and (5) a bolt.
Detailed Description
The invention will be further described with reference to specific embodiments, and advantages and features of the invention will become apparent from the description. The embodiments are merely exemplary and do not limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes and substitutions of details and forms of the technical solution of the present invention may be made without departing from the spirit and scope of the present invention, but these changes and substitutions fall within the scope of the present invention.
Example 1
As shown in fig. 1, the novel composite slope rapid trough structure comprises an outer support body 1 and an inner energy dissipation body 2, wherein a groove 3 is formed in the outer support body 1, and concave-convex corrugations 4 are formed in the groove 3; as shown in fig. 2, the internal energy dissipation body 2 is a corrugated pipe with the cross section identical to the cross section of the groove of the external support body, and the internal energy dissipation body is provided with concave-convex corrugations 4; the inner energy dissipation body is fixedly arranged in the groove of the outer support body, and the corrugation of the inner energy dissipation body and the corrugation on the outer support body can be buckled with each other in a concave-convex manner.
The external support body has the functions of: the whole device is guaranteed to be located on an undisturbed foundation, and the whole structure is guaranteed to be stable; the function of the internal energy dissipater is: the flow velocity of water in the rapid trough is reduced, high-speed water flow in the trough is prevented, and the service life of the rapid trough is prolonged through the energy dissipation effect of the energy dissipation body.
Example 2
As shown in fig. 1, the novel composite slope rapid trough structure comprises an outer support body 1 and an inner energy dissipation body 2, wherein a groove 3 is formed in the outer support body 1, and concave-convex corrugations 4 are formed in the groove 3; the internal energy dissipation body 2 is a corrugated pipe with the cross section identical to the cross section of the groove of the external support body, and the internal energy dissipation body is provided with concave-convex corrugations 4; the inner energy dissipation body is fixedly arranged in the groove of the outer support body, and the corrugation of the inner energy dissipation body and the corrugation on the outer support body can be buckled with each other in a concave-convex manner. The bottom of the external support body 1 is provided with a concrete base 5, the thickness of the concrete base 5 is 10cm, and water can be prevented from flowing into the excavated slope surface to infiltrate. The outer support body groove gradually slopes downward in the length direction.
The external support body has the functions of: the whole device is guaranteed to be located on an undisturbed foundation, and the whole structure is guaranteed to be stable; the function of the internal energy dissipater is: the flow velocity of water in the rapid trough is reduced, high-speed water flow in the trough is prevented, and the service life of the rapid trough is prolonged through the energy dissipation effect of the energy dissipation body.
The external support body 1 and the internal energy dissipation body 2 are glued together through concrete, so that the fixing effect is good, and the structure is more stable. The external support body 1 is of a concrete structure, can prevent water from flowing to the excavation slope surface to infiltrate, and is stable in overall structure.
The inside energy dissipation body is provided with a plurality of along the recess of outside supporter vertically, connects fixedly through bolt 6 between two adjacent inside energy dissipation bodies, and the connecting hole is reserved at inside energy dissipation body left and right sides both ends, and connecting bolt passes the connecting hole, through the ripple connection with the nut, realizes the connection between the inside energy dissipation body. The length adjustment of the internal energy dissipater along the water flow direction under the condition of different slope changing lengths can be satisfied. The diameter of the reserved connecting holes is 1cm, and 4 connecting holes are arranged at each end part, and the total number of the reserved connecting holes is 8. The diameter of the connecting bolt is 1.2cm, the length is 4cm, and the specification of the nut is matched with the connecting bolt.
The cross section of the groove on the external support body is semicircular. The internal energy dissipater is a semicircular galvanized steel pipe provided with corrugations. The longitudinal section of the internal energy dissipation body is wavy, the wave height is 5cm, the half period wave length is 6cm, and the wall thickness is 3mm.
The external support body is manufactured by adopting a concrete cast-in-situ mode, the cross section of the external profile is rectangular, the structural size is 100cm multiplied by 50cm (width multiplied by height), the cross section of the groove is a semicircular cross section, the diameter is 60cm, and the longitudinal section of the internal profile is wavy;
Example 3
A construction method of a novel composite slope rapid trough structure comprises the following steps:
(1) Digging a rapid trough: determining the position of a lofting rapid trough according to the requirements of a construction drawing, and digging a trough on a side slope, wherein the size of the trough digging is the same as that of an external support body of the rapid trough;
(2) And (3) manufacturing an internal energy dissipation body: determining the number of internal energy dissipaters according to the actual excavation length of each grade of side slope, drilling holes at two ends of the internal energy dissipaters, manufacturing reserved connecting holes, penetrating connecting bolts through the reserved connecting holes, and connecting and manufacturing the internal energy dissipaters by corrugated connection with nuts;
(3) And (3) concrete pouring of the outer support base: taking the groove of which the slope is excavated in the step 1 as a concrete external support base template, and casting concrete on site, wherein the casting thickness is 10cm;
(4) And (3) pouring concrete on the upper structure of the support body: and (3) placing the internal energy dissipation body manufactured in the step (2) above the external support body base manufactured in the step (3) to serve as an inner side template of the upper structure of the external support body, and casting the upper structure of the external support body on site.
Claims (5)
1. The composite slope rapid trough structure is characterized by comprising an outer support body and an inner energy dissipation body, wherein a groove is formed in the outer support body, and concave-convex waves are formed in the groove; the internal energy dissipation body is a corrugated pipe with the cross section identical to the cross section of the external support body groove, and concave-convex corrugations are arranged on the internal energy dissipation body; the inner energy dissipation body is fixedly arranged in the groove of the outer support body, and the corrugation of the inner energy dissipation body and the corrugation on the outer support body can be buckled with each other; the external support body and the internal energy dissipation body are glued together through concrete; the cross section of the external support body groove is semicircular; the internal energy dissipation body is a semicircular galvanized steel pipe provided with corrugations; the external support body is of a concrete structure, a concrete base is arranged at the bottom of the external support body, and the construction method of the composite slope rapid trough structure comprises the following steps:
(1) Digging a rapid trough: determining the position of a lofting rapid trough according to the requirements of a construction drawing, and digging a trough on a side slope, wherein the size of the trough digging is the same as that of an external support body of the rapid trough;
(2) And (3) manufacturing an internal energy dissipation body: determining the number of internal energy dissipaters according to the actual excavation length of each grade of side slope, drilling holes at two ends of the internal energy dissipaters, manufacturing reserved connecting holes, penetrating connecting bolts through the reserved connecting holes, and connecting and manufacturing the internal energy dissipaters by corrugated connection with nuts;
(3) And (3) concrete pouring of the outer support base: taking the groove of which the slope is excavated in the step 1 as a concrete external support base template, and casting concrete on site, wherein the casting thickness is 10cm;
(4) And (3) pouring concrete on the upper structure of the external support body: and (3) placing the internal energy dissipation body manufactured in the step (2) above the external support body base manufactured in the step (3), taking the internal energy dissipation body as an inner side template of the upper structure of the external support body, and casting the upper structure of the external support body on site.
2. The composite slope chute structure according to claim 1, wherein the concrete base has a thickness of 10cm.
3. The composite slope rapid trough structure according to claim 1, wherein the inner energy dissipaters are provided in a plurality along the length direction of the grooves of the outer support body, two adjacent inner energy dissipaters are fixedly connected through bolts, connecting holes are reserved at the left end and the right end of each inner energy dissipater, connecting bolts penetrate through the connecting holes, and connection between the inner energy dissipaters is achieved through corrugated connection with nuts.
4. The composite slope chute structure according to claim 1, wherein the longitudinal section of the internal energy dissipater is wave-like, 5cm wave height, 6cm half-cycle wave length, and 3mm wall thickness.
5. The composite slope and chute structure according to claim 1, wherein the outer support body groove tapers downwardly in the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811393067.0A CN109356259B (en) | 2018-11-21 | 2018-11-21 | Composite slope rapid trough structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811393067.0A CN109356259B (en) | 2018-11-21 | 2018-11-21 | Composite slope rapid trough structure and construction method |
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| CN109356259A CN109356259A (en) | 2019-02-19 |
| CN109356259B true CN109356259B (en) | 2024-05-07 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110359470B (en) * | 2019-07-23 | 2021-01-08 | 福建磊鑫(集团)有限公司 | Corrugated pipe intercepting ditch construction process |
| CN110565775A (en) * | 2019-08-22 | 2019-12-13 | 中国二十冶集团有限公司 | drainage method of corrugated pipe drainage ditch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200361078Y1 (en) * | 2004-05-21 | 2004-09-06 | (주)경동기술공사 | Current reduction water canal structure of slope for road |
| CN103620120A (en) * | 2011-06-30 | 2014-03-05 | 李礼顺 | Prefabricated drain structure |
| KR20160075179A (en) * | 2014-12-19 | 2016-06-29 | 서기문 | Road gutter with a corrugated steel pipe |
| CN107401207A (en) * | 2017-09-11 | 2017-11-28 | 温州东怡园林建设有限公司 | The construction method of drainage pipeline |
| CN209429235U (en) * | 2018-11-21 | 2019-09-24 | 中铁十四局集团有限公司 | A kind of novel combined side slope torrent slot structure |
-
2018
- 2018-11-21 CN CN201811393067.0A patent/CN109356259B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200361078Y1 (en) * | 2004-05-21 | 2004-09-06 | (주)경동기술공사 | Current reduction water canal structure of slope for road |
| CN103620120A (en) * | 2011-06-30 | 2014-03-05 | 李礼顺 | Prefabricated drain structure |
| KR20160075179A (en) * | 2014-12-19 | 2016-06-29 | 서기문 | Road gutter with a corrugated steel pipe |
| CN107401207A (en) * | 2017-09-11 | 2017-11-28 | 温州东怡园林建设有限公司 | The construction method of drainage pipeline |
| CN209429235U (en) * | 2018-11-21 | 2019-09-24 | 中铁十四局集团有限公司 | A kind of novel combined side slope torrent slot structure |
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| CN109356259A (en) | 2019-02-19 |
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