CN220013925U - Drainage structure with temporary grit chamber - Google Patents

Drainage structure with temporary grit chamber Download PDF

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Publication number
CN220013925U
CN220013925U CN202321181697.8U CN202321181697U CN220013925U CN 220013925 U CN220013925 U CN 220013925U CN 202321181697 U CN202321181697 U CN 202321181697U CN 220013925 U CN220013925 U CN 220013925U
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China
Prior art keywords
grit chamber
guide plate
water
side slope
drainage
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CN202321181697.8U
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Inventor
严青
杨晓瑞
何清怀
卓越
陈迪
陈晓琳
文兴
代海波
陈笠
王钢
张体强
曾媛
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Sichuan Electric Power Design and Consulting Co Ltd
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Sichuan Electric Power Design and Consulting Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

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  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

The utility model discloses a drainage structure with a temporary sand setting tank, belongs to the technical field of water and soil conservation of mountain side slopes, and is mainly used for collecting and draining water at the construction site of the mountain side slopes and precipitating sand and sundries in water flow. The utility model aims to provide a drainage structure with a temporary grit chamber, which comprises a drainage intercepting ditch and a grit chamber, wherein the drainage intercepting ditch and the grit chamber are arranged on a side slope; a water inlet of the grit chamber is connected with the tail end of the intercepting drainage ditch, a water outlet of the grit chamber is arranged at the downstream of the side slope, a protection plate is detachably connected to the inner wall of the grit chamber, a guide plate with the length longer than the width of the grit chamber is transversely arranged in the water outlet direction of the grit chamber, and a plurality of drainage holes are formed in the guide plate at intervals along the length direction of the guide plate; the drainage structure is beneficial to collecting ground water and rainfall, slows down the scouring of the rainfall to the inner wall of the grit chamber, avoids the collapse of the soil layer of the inner wall, and forms uniform water distribution at the outlet of the grit chamber, reduces the water and soil loss of the downstream side slope, thereby playing the role of protecting the stability of the side slope.

Description

Drainage structure with temporary grit chamber
Technical Field
The utility model relates to the technical field of water and soil conservation of mountain side slopes, in particular to a drainage structure with a temporary grit chamber.
Background
During construction of side slope engineering, for example: when carrying out transmission line iron tower construction on the mountain area side slope, in order to avoid the geological disasters such as landslide collapse appears in the side slope at the rainfall and influence the construction, set up drainage structure along the side slope in the tower foundation department of iron tower and carry out the drainage to reduce the rain wash and the surface water seepage leads to side slope soil loosening and reduces side slope stability, and then take place the disaster such as landslide, collapse.
The common side slope drainage structure mostly comprises intercepting drainage ditches arranged according to mountain potential so as to intercept and remove surface water and rainfall in the surrounding mountain slope water gathering surface, reduce the conditions of slope stability caused by loose soil texture of the side slope due to rain wash and surface water leakage, and enable the side slope to slide and collapse; meanwhile, when the rainfall is large, the sand, sundries and the like on the ground are easily brought into the intercepting drainage ditch by rain wash, so that the joint of the intercepting drainage ditch and a natural channel is blocked, the drainage rate is reduced, and a sand setting tank is usually arranged at the tail end of the intercepting drainage ditch.
When the engineering construction period on the side slope of the mountain area is shorter, in order to ensure that the natural environment change caused by construction reconstruction can be restored after the construction is finished, a temporary sand setting tank is usually adopted, the existing temporary sand setting Chi Duowei soil simple sand setting tank is manually excavated, the inner wall is usually beaten into use by a spade, and the side slope surface water collection and soil erosion prevention and control are realized, but a certain scouring exists on the inner wall of the soil, so that soil collapse is easy to accelerate; and the outlet of the grit chamber is directly connected with a natural channel or a side slope, uniform water distribution cannot be formed, and the downstream side slope still has a certain water and soil loss risk.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a drainage structure with a temporary sand basin, which is favorable for collecting ground water and rainfall, simultaneously reduces the scouring of the rainfall to the inner wall of the temporary sand basin, avoids the soil layer collapse of the sand basin wall, forms uniform water distribution at the outlet of the sand basin, reduces the water and soil loss of a downstream side slope, and plays a role in protecting the stability of the side slope.
The utility model discloses a drainage structure with a temporary grit chamber, which comprises a drainage intercepting ditch arranged on a side slope and the grit chamber; the grit chamber is equipped with water inlet and delivery port, the water inlet links to each other with the end that cuts the escape canal, the delivery port sets up in the grit chamber and is close to side slope low reaches one side, the grit chamber still is equipped with guard plate and guide plate, the guard plate can be dismantled and set up at the grit chamber inner wall, the length of guide plate is greater than the width of grit chamber and transversely sets up in grit chamber delivery port direction, be provided with a plurality of wash ports along guide plate length direction interval on the guide plate.
Preferably, the protection plate is a steel plate.
Preferably, the deflector is welded to the shield plate.
Preferably, the cross section of the guide plate is arc-shaped, and the concave surface of the guide plate faces the sand setting tank.
As a preferable mode, the bottom end of the guide plate is also provided with a connecting section attached to the side slope.
Preferably, the guide plate is a steel plate with the thickness of 0.1-0.2m.
As a preferable mode, a row of drainage holes are formed in the guide plate at intervals of 0.5m, and the aperture of each drainage hole is 0.2m.
Preferably, the protection plate is arranged on the inner wall of the grit chamber through the anchor nails.
Preferably, the intercepting drainage ditch is spirally arranged on the side slope along the height direction of the side slope.
The beneficial effects of the utility model are as follows: through setting up drainage structures along the side slope for collect surface water and rainfall, effectively reduce the rainfall and wash out to the side slope, reduce the probability that disasters such as landslide, collapse take place, simultaneously, set up interim grit chamber at the end of intercepting escape canal, be convenient for deposit grit, debris in the rivers, and can backfill it and carry out vegetation and resume after iron tower construction is accomplished, reduce the destruction to natural environment. The protection plate is arranged in the inner wall of the temporary grit chamber so as to prevent the collapse of the soil layer of the inner wall of the grit chamber caused by rain wash or surface water increase of the temporary excavated soil grit chamber from influencing the use of the grit chamber; meanwhile, a guide plate is arranged at the downstream outlet of the grit chamber so as to promote water escaping from the grit chamber to form uniform water distribution, reduce scouring of water flow to the downstream side slope, namely reduce water and soil loss of the downstream side slope, reduce occurrence probability of disasters such as landslide and collapse, and simultaneously, the width of the guide plate is larger than that of the grit chamber so that water escaping from the side wall of the grit chamber can also flow through the guide plate to form uniform water distribution; in addition, because the guard plate is detachably connected to the inner wall of the sand setting tank, after construction is completed, the guard plate can be detached when the sand setting tank is not needed, and the sand setting tank is filled with backfill soil and is subjected to vegetation recovery, so that the influence on the natural environment is small.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a schematic view of a baffle structure according to the present utility model;
fig. 4 is a schematic view of a spirally arranged intercepting drain structure according to the present utility model.
Reference numerals: 1-side slope, 2-intercepting drainage ditch, 3-grit chamber and 4-protection plate; 41-downstream guard plate; 5-a deflector; 51-drainage holes; 52-arc segments; 53-horizontal connection section; 6-anchoring nails.
Detailed Description
The utility model is further described below.
The utility model provides a drainage structure with a temporary grit chamber, which is mainly used for collecting and draining water at a mountain side slope construction site and precipitating sand and sundries in water flow, and comprises a water interception and drainage ditch 2 and a grit chamber 3 which are arranged on the side slope; the grit chamber 3 is equipped with water inlet and delivery port, the water inlet links to each other with the end of intercepting escape canal 2, the delivery port sets up in grit chamber 3 is close to side slope low reaches one side, grit chamber 3 still is equipped with guard plate 4 and guide plate 5, guard plate 4 can dismantle the setting at grit chamber 3 inner wall, the length of guide plate 5 is greater than the width of grit chamber 3 and transversely sets up the delivery port direction at grit chamber 3, the length direction interval along guide plate 5 on the guide plate 5 is provided with a plurality of wash ports 51.
Referring to fig. 1 and 2, the drainage structure with temporary grit chamber includes a intercepting drainage ditch 2 arranged along the slope of a side slope 1 and a grit chamber 3 arranged at the tail end of the intercepting drainage ditch 2, the shape of the grit chamber 3 can be constructed according to practical conditions, the shape is not limited to a square structure, the grit chamber 3 is higher near the upstream end of the side slope than near the downstream end of the side slope or is leveled with the downstream end of the side slope, so that water discharged from the intercepting drainage ditch 2 and other substances can enter the grit chamber 3, the other substances are automatically settled to the bottom of the grit chamber 3 due to gravity and can not be discharged from the outlet direction of the grit chamber 3, and the water can be discharged when the accumulated water is higher than the outlet direction of the grit chamber 3; because the excavated grit chamber 3 is a temporary grit chamber, the construction of the iron tower is required to be dismantled after the completion, if concrete layers are laid on the inner wall of the grit chamber 3, the construction cost is high, the time consumption is long and the construction is not easy to be dismantled, so that a detachable protection plate 4 is arranged on the inner wall of the grit chamber 3, and the protection plate 4 is closely attached to the inner wall of the grit chamber 3 in a surrounding manner, so that the collapse of the soil layers on the inner wall of the grit chamber 3 of the temporary excavation caused by rain wash or surface water increase is avoided, and the use of the grit chamber is influenced; specifically, the protection plate 4 can be formed by splicing a plurality of sub-plates, or can be installed by adopting a whole plate structure, so that the sub-plates are often spliced for convenient storage after disassembly; the specific detachable installation mode can be installed by adopting detachable connection modes such as expansion bolts, anchor rods and the like; in addition, as shown in fig. 2, the length b of the deflector 5 is greater than the width a of the grit chamber 3, the deflector 5 is transversely arranged in the water outlet direction of the grit chamber 3, and a plurality of drain holes 51 are formed in the deflector 5 at intervals along the length direction of the deflector 5, so that water escaping from any direction of the grit chamber 3 can flow through the deflector 5, and uniformly distributed water is formed through the drain holes 51 arranged on the deflector 5 at intervals and discharged to the downstream side slope, the scouring of the downstream side slope by the water flow is reduced, namely, the water and soil loss of the downstream side slope is reduced, the occurrence rate of disasters such as landslide, collapse and the like is reduced, the deflector 5 can be arranged on the side slope 1 in the outlet direction of the grit chamber 3 through anchor bolts or anchor nails or can be detachably connected with the protection plate 4 so as to be arranged in the outlet direction of the grit chamber 3, and the detachable connection mode can be specifically adopted by expansion bolts or anchor nails; in addition, because the protection plate 4 is detachably installed, after construction is completed, the protection plate can be detached, backfilling and vegetation recovery are carried out on the grit chamber 3, and damage to the environment is reduced.
The drainage structure with the temporary sand basin provided by the utility model can not only collect surface water and rainfall through intercepting drainage ditches and avoid geological disasters such as landslide and collapse caused by serious side slope soil erosion due to overlarge water flow flushing, but also can prevent sand and sundries in the intercepting drainage ditches from flowing into a natural ditch or downstream side slope along with water flow to pollute the environment while blocking a water flow path, and can not only ensure that the inner wall of the sand basin cannot collapse due to rainwater flushing or surface water increase, thereby influencing the use of the sand basin, but also can remove the protection plate for repeated use after construction is completed, and then perform backfilling and vegetation recovery on the sand basin, thereby reducing the damage to the environment, and the water outlet of the sand basin is further provided with a guide plate to promote water escaping from the sand basin to form uniform water distribution, thereby reducing the water distribution probability of the water flowing into the downstream side slope, namely reducing the water flushing probability of the downstream side slope, and the side slope collapse, and the like, thereby achieving the purposes of protecting the side slope and the like.
The guard plate 4 can adopt plank, waterproof board etc. but because plank wash out, soak down and easily take place the foaming and expanding deformation in rivers, waterproof board is easily atress deformation under the extrusion of grit, debris simultaneously, unable used repeatedly, guard plate 4 is the steel sheet, and the steel sheet is easy to obtain at the job site, and its intensity is high, can not take place to warp, can carry out the reutilization after dismantling, saves construction cost.
In order to avoid that the flow deflector 34 has larger water escape quantity in the grit chamber 3 and is deviated due to water flow impact to influence the use, the flow deflector 5 is welded with the protection plate 4, one end of the protection plate 4 close to the downstream side slope is named as a downstream protection plate 41, and the lower end of the flow deflector 5 is welded with the top end of the downstream protection plate 41 to enhance the connection stability.
The guide plate 5 can adopt a structure of a straight perforated plate or a similar air conditioner guide plate, in order to avoid the damage of the guide plate 5 caused by larger water flow impact force, the cross section of the guide plate 5 is arc-shaped, and the concave surface of the guide plate faces the grit chamber 3; as shown in fig. 3, the drain holes 51 are arranged on the circular arc section 52 at intervals along the length direction; by arranging the guide plate 5 to be the arc section 52 with the arc-shaped cross section, a certain buffer area is provided for water flow, and the instability and damage of the guide plate 5 caused by overlarge impact force are avoided.
In order to facilitate the installation of the guide plate 5 with the circular arc-shaped cross section, the bottom end of the guide plate 5 is also provided with a connecting section 53 attached to the side slope 1; the setting of connecting section 53 is convenient for the setting of guide plate 5 on the one hand, whether with the welding of low reaches guard plate 32 or directly fix it on the low reaches side slope through the anchor nail, and connecting section 52 all provides the installation of the guide plate 5 of comparatively convenient ground mounting point convenience for it, on the other hand, has prolonged the flow path of escaping water from grit chamber 3, reduces its impact force to circular arc section 52.
The guide plate 5 can be made of plastic plates, wood plates and the like, so that the rigidity of the guide plate is improved, the guide plate is prevented from being damaged during use, the guide plate can be reused for a plurality of times, and the guide plate 5 is made of steel plates and has the thickness of 0.1-0.2m; the steel plate is used as the guide plate, if the thickness is too large, welding with the protection plate 4 is not facilitated, meanwhile, the guide plate 5 is not conveniently installed by adopting expansion bolts or anchoring nails, the weight of the guide plate 5 is large, and the installation and the transportation are inconvenient; the thickness is too small, and the welding part with the downstream protection plate 32 is easy to fall off under the impact of water flow, so that potential safety hazards exist.
In order to enhance the flow guiding capability of the flow guiding plate 5 and enable the flow guiding plate to quickly form uniform water distribution, a plurality of rows of drain holes are arranged on the circular arc section 52 at intervals, specifically, a row of drain holes 51 are arranged on the circular arc section 52 at intervals of 0.5m, and the aperture of each drain hole 51 is 0.2m; the water drain holes 53 are formed, so that uniform water distribution is facilitated, and the phenomenon that accumulated water passes through the guide plate 5 and is directly discharged to the downstream of the side slope due to the fact that excessive water accumulated in the circular arc section 52 cannot be timely discharged to the downstream of the side slope can be effectively avoided, and the water and soil loss of the downstream of the side slope is serious due to flushing of the side slope.
When guard plate 4 adopts modes such as stock to install, although firm, its construction cost is higher and dismantle inconvenient, can install on the grit chamber 3 inner wall and convenient to detach in order to guarantee guard plate 4 steadily, guard plate 4 passes through anchor nail 6 to be set up at the grit chamber 3 inner wall.
When frequent rainfall, the guiding drainage of a large amount of rainfall can not be realized only by a single intercepting drainage ditch 2 arranged along the slope of the side slope, as shown in fig. 4, the intercepting drainage ditch 2 is spirally arranged on the side slope 1 along the height direction of the side slope 1, the intercepting drainage ditch 2 is spirally arranged on the side slope 1 around a construction site, the length of the intercepting drainage ditch 2 is prolonged and the arrangement range of the intercepting drainage ditch is enlarged in a manner of spirally arranging the intercepting drainage ditch, the range of the intercepting drainage ditch 2 can be enlarged, the intercepting drainage ditch 2 is drained away by the intercepting drainage ditch, the rain wash side slope is reduced, the water and soil loss of the side slope is caused, meanwhile, the flowing path of water flow is prolonged, the potential energy of the water flow is reduced, when the water flow flows into the sand basin 3 along the intercepting drainage ditch 2, the impact force of the water flow to the sand basin 3 is also reduced, and the flushing of the water flow to the inner wall of the sand basin 3 is reduced.

Claims (9)

1. A drainage structure with a temporary grit chamber comprises a intercepting drainage ditch (2) arranged on a side slope and a grit chamber (3); the method is characterized in that: the sand setting tank (3) is provided with a water inlet and a water outlet, the water inlet is connected with the tail end of the intercepting drainage ditch (2), and the water outlet is arranged on one side, close to the downstream of the side slope, of the sand setting tank (3); the sand setting tank is characterized in that the sand setting tank (3) is further provided with a protection plate (4) and a guide plate (5), the protection plate (4) is detachably arranged on the inner wall of the sand setting tank (3), the length of the guide plate (5) is larger than the width of the sand setting tank (3) and is transversely arranged in the water outlet direction of the sand setting tank (3), and a plurality of drain holes (51) are formed in the guide plate (5) along the length direction of the guide plate (5) at intervals.
2. A drainage structure with temporary grit chamber as in claim 1, wherein: the protection plate (4) is a steel plate.
3. A drainage structure with temporary grit chamber as in claim 1, wherein: the guide plate (5) is welded with the protection plate (4).
4. A drainage structure with temporary grit chamber as in claim 1, wherein: the section of the guide plate (5) is arc-shaped, and the concave surface of the guide plate (5) faces the sand setting tank (3).
5. A drainage structure with temporary grit chamber as in claim 4, wherein: the bottom end of the guide plate (5) is also provided with a connecting section (53) attached to the side slope (1).
6. A drainage structure with temporary grit chamber as in claim 5, wherein: the guide plate (5) is a steel plate with the thickness of 0.1-0.2m.
7. A drainage structure with temporary grit chamber as in claim 4, wherein: a row of drainage holes (51) are formed in the guide plate (5) at intervals of 0.5m, and the aperture of each drainage hole (51) is 0.2m.
8. A drainage structure with temporary grit chamber as in claim 1, wherein: the protection plate (4) is arranged on the inner wall of the grit chamber (3) through the anchor nails (6).
9. A drainage structure with temporary grit chamber as in claim 1, wherein: the intercepting drainage ditch (2) is spirally arranged on the side slope (1) along the height direction of the side slope (1).
CN202321181697.8U 2023-05-16 2023-05-16 Drainage structure with temporary grit chamber Active CN220013925U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321181697.8U CN220013925U (en) 2023-05-16 2023-05-16 Drainage structure with temporary grit chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321181697.8U CN220013925U (en) 2023-05-16 2023-05-16 Drainage structure with temporary grit chamber

Publications (1)

Publication Number Publication Date
CN220013925U true CN220013925U (en) 2023-11-14

Family

ID=88691921

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321181697.8U Active CN220013925U (en) 2023-05-16 2023-05-16 Drainage structure with temporary grit chamber

Country Status (1)

Country Link
CN (1) CN220013925U (en)

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