CN210827381U - Composite energy dissipater suitable for long-distance and complex-terrain slope surface drainage - Google Patents

Abstract

The utility model provides a compound energy dissipater suitable for domatic drainage of long distance, complicated topography, includes upper reaches escape canal, rectification pond and low reaches escape canal, upper reaches escape canal and low reaches escape canal all include the vertical escape canal side wall that sets up in escape canal bottom plate and escape canal bottom plate both sides install a plurality of energy dissipation steps on the length direction of escape canal bottom plate, the rectification pond includes the rectification pond side wall of the vertical setting in rectification pond bottom plate and rectification pond bottom plate both sides. The utility model has the advantages of: the utility model discloses a rectification pond has that area is little, arrange in a flexible way, save advantages such as engineering volume, construction are simple, low in cost, when guaranteeing the energy dissipation effect, also can reduce the earthwork side and excavate, optimize escape canal section structure size for the construction progress, reduction of erection time, the economic benefits of whole construction operation is showing and is improving, can reach predetermined expectation effect moreover, makes domatic rivers safe discharge.

Description

Composite energy dissipater suitable for long-distance and complex-terrain slope surface drainage

Technical Field

The utility model belongs to the technical field of the slope is administered and specifically relates to a compound energy dissipater suitable for domatic drainage of long distance, complicated topography.

Background

In the treatment of side slopes of large-scale open pit, valley type refuse dumps, tailing ponds and other projects, slope drainage is an indispensable treatment measure, slope drainage is required to be arranged to prevent upstream slope catchment from entering a protection area, and slope drainage ditches are required to guide water flow to peripheral water systems. In order to make domatic rivers safe excretion, engineering measure commonly used at present has increaseed escape canal section structure size, the ditch bottom sets up the step energy dissipation, adopt the box culvert structure, set up multistage absorption basin etc, the engineering degree of difficulty that nevertheless increases escape canal section structure size is great, the engineering volume is showing and is increasing, take single step energy dissipation can play serious erosion to the energy dissipation structure of escape canal bottom, and along with the crescent of journey speed, rivers easily splash and overflow, the cost of drainage box culvert is higher, easily block up during the operation, overhaul the difficulty, the time limit for a project of multistage absorption basin is lengthy, should not adopt on a large scale, how optimize current escape canal structure, it is the present problem of treating urgently to make domatic rivers safe excretion.

Disclosure of Invention

In order to solve the problems, the utility model aims at providing a compound energy dissipater suitable for long distance, the domatic drainage of complicated topography, its overall structure is simple, and the time limit for a project is shorter relatively, and the construction degree of difficulty is lower, and low in cost just can guarantee that domatic rivers are steady must accomplish the safety and excrete in the flow steady in the escape canal under the prerequisite that the drop is big, the flow is big, the circuit is long.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a composite energy dissipater suitable for long-distance and complex-terrain slope drainage, which comprises an upstream drainage ditch, a rectifying pool and a downstream drainage ditch, wherein the upstream drainage ditch and the downstream drainage ditch respectively comprise drainage ditch bottom plates and drainage ditch side walls vertically arranged on two sides of the drainage ditch bottom plates, a plurality of energy dissipation steps are arranged in the length direction of the drainage ditch bottom plates, the rectifying pool comprises a rectifying pool bottom plate and rectifying pool side walls vertically arranged on two sides of the rectifying pool bottom plate, the rectifying pool is positioned between the upstream drainage ditch and the downstream drainage ditch, the rectifying pool side walls are respectively and tightly butted with the drainage ditch side walls at two ends, a broken line weir is arranged on the rectifying pool bottom plate close to one side of the downstream drainage ditch, the broken line weir comprises a vertical surface, a horizontal surface and an inclined surface, the section of the broken line weir is in a right trapezoid shape, the inclined surface and the upper surface of the drainage ditch bottom plate of the, and a breast wall is arranged between the rectifying pool side walls on the two sides corresponding to the position of the vertical surface on the broken line weir, the upper end of the breast wall is flush with the upper end of the rectifying pool side wall, and a water outlet channel is reserved between the bottom end of the breast wall and the horizontal plane. Furthermore, the energy dissipation steps are poured by adopting steel fiber concrete, first angle steel is fixedly installed at the convex angle of each energy dissipation step, a plurality of first joint bars are installed between each energy dissipation step and the inside of the drainage ditch bottom plate, and the first joint bars are arranged along the width direction of each energy dissipation step. Further, fixed mounting second angle steel on the vertical face of broken line weir and the horizontal plane installs a plurality of second dowel bars between broken line weir and the rectifier tank bottom plate is inside, the second dowel bar sets up along the width direction of broken line weir, installs third angle steel in the bottom position department of breastwork, installs a plurality of third dowel bars between breastwork and the both sides rectifier tank side wall, the vertical direction setting along the breastwork of third dowel bar.

The utility model has the advantages of: the composite energy dissipater suitable for slope drainage of long distance and complex terrains is applied to slope drainage management, not only retains the effect of step energy dissipation, but also eliminates the problems of complex flow state, easy splashing and overflow of water flow and the like caused by continuous long distance and large drop height step energy dissipation, compared with the traditional energy dissipation measures of enlarging the section size of a drainage ditch, adopting box culverts, arranging multistage stilling pools and the like, the rectifying pool has the advantages of small occupied area, flexible arrangement, saving of engineering quantity, simple construction, low cost and the like, the composite energy dissipater can be popularized and applied in slope drainage of mountainous areas of long distance and complex terrains, the energy dissipation effect can be ensured, the excavation of earth and stones can be reduced, the section structure size of the drainage ditch can be optimized, the construction progress is accelerated, the construction period is shortened, the economic benefit of the whole construction operation is obviously improved, and the preset expected effect can be achieved, so that the slope water flow is safely discharged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the connection structure of the energy dissipation step and the drainage ditch bottom plate;

FIG. 4 is a schematic structural view of the connection between the breast wall and the rectifying pool side wall of the present invention;

FIG. 5 is a schematic view of the connection structure of the broken-line weir and the bottom plate of the rectifying pool;

fig. 6 is a schematic structural view of the included angle existing between the axes of the upstream and downstream drainage ditches.

In the figure, 1, an upstream drainage ditch 2, a rectifying pool 3, a downstream drainage ditch 4, a drainage ditch bottom plate 5, a drainage ditch side wall 6, an energy dissipation step 7, a rectifying pool bottom plate 8, a rectifying pool side wall 9, a broken line weir 10, a vertical surface 11, a horizontal surface 12, a breast wall 14, a water outlet channel 15, a first angle steel 16, a first steel dowel 17, a second angle steel 18, a second steel dowel 19, a third angle steel 20 and a third steel dowel.

Detailed Description

A compound energy dissipater suitable for domatic drainage of long distance, complicated topography, as shown in fig. 1, including upper reaches escape canal 1, rectification pond 2 and downstream escape canal 3, upper reaches escape canal 1 and downstream escape canal 3 all include escape canal bottom plate 4 and the vertical escape canal boundary wall 5 that sets up in escape canal bottom plate 4 both sides install a plurality of energy dissipation steps 6 on the length direction of escape canal bottom plate 4, above-mentioned upper reaches escape canal 1 and downstream escape canal 3 and the energy dissipation step 6 on them can make the rivers of process roll along the journey, energy dissipation step 6 can make rivers produce the water leap, mix the gas, form vortex flow, mix the air current to reach the effect of rivers energy dissipation, and then effectively reduce the velocity of flow.

Rectifying pool 2 includes rectifying pool bottom plate 7 and the rectifying pool side wall 8 of the vertical setting in 7 both sides of rectifying pool, and wherein rectifying pool 2 is located between upper reaches escape canal 1 and the low reaches escape canal 3, and rectifying pool side wall 8 closely docks with the escape canal side wall 5 at both ends mutually respectively. Be equipped with broken line weir 9 on the rectifier tank bottom plate 7 that is close to 3 one sides in low reaches escape canal, broken line weir 9 includes vertical face 10, horizontal plane 11 and inclined plane 12, and its cross-section is right trapezoid, inclined plane 12 is in same straight line position department with 4 upper surfaces in the escape canal bottom plate in low reaches escape canal 3. And a breast wall 13 is arranged between the rectifying pool side walls 8 on the two sides at the position corresponding to the vertical surface 10 on the broken line weir 9, the upper end of the breast wall 13 is level with the upper end of the rectifying pool side wall 8, and a water outlet channel 14 is reserved between the bottom end of the breast wall 13 and the horizontal plane 11. The rectifying pool 2 has the function of collecting and integrating water flows of complex flow states such as vortex flow, air entrainment flow and the like formed by energy dissipation of the energy dissipation steps 6 in the upstream drainage ditch 1 and then entering the downstream drainage ditch 3 through the water outlet channel 14.

As the node connecting the upstream drainage ditch 1 and the downstream drainage ditch 3, the water inlet between the upstream drainage ditch 1 and the rectifying pool 2 is open, the water outlet channel 14 between the rectifying pool 2 and the downstream drainage ditch 3 is hole-opening type, the water outlet channel 14 is lower than the water surface in the pool, the water outlet flow state can be ensured to be the outflow of a pressure hole opening, when water flow enters the rectifying pool 2 from the upstream drainage ditch 1, the vertical surface 10 of the broken-line weir 9 and the breast wall 13 are firstly impacted to reduce the speed and dissipate the energy, the breast wall 13 is arranged to effectively prevent the water in the rectifying pool 2 from splashing out, and the water flow after the energy dissipation enters the downstream drainage ditch 3 through the water outlet channel 14 to play the role of further reducing the speed and dissipating the energy.

When the axes of the upstream drainage ditch 1 and the downstream drainage ditch 3 are in the same straight line position, as shown in fig. 2, the upstream drainage ditch 1, the rectifying pool 2 and the downstream drainage ditch 3 are all in the same straight line position, and when the axes of the upstream drainage ditch 1 and the downstream drainage ditch 3 have an included angle due to terrain reasons, as shown in fig. 6, the rectifying pool 2 is preferentially arranged at a turning position, so that the water inlet is consistent with the axis of the upstream drainage ditch 1, the axis of the water outlet channel 14 is consistent with the axis of the downstream drainage ditch 3, wherein the height position and the width of the water outlet channel 14 can be determined by hydraulic calculation such as drainage flow, and the height of the rectifying pool side wall 8 is determined by adding safe superelevation in the pool. The rectifying pool 2 at the turning position can effectively prevent splashing overflow generated by the change of the direction of water flow in the ditch.

Further, in order to ensure effective connection between the drainage ditch bottom plate 4 and the energy dissipation step 6 and improve the anti-scouring and wear-resisting performance of the energy dissipation step 6, as shown in fig. 3, the energy dissipation step 6 is formed by pouring steel fiber concrete, a first angle steel 15 is fixedly installed at a convex angle of the energy dissipation step 6, a plurality of first inserted bars 16 are installed between the energy dissipation step 6 and the interior of the drainage ditch bottom plate 4, and the first inserted bars 16 are arranged along the width direction of the energy dissipation step 6. Above-mentioned first angle steel 15 can adopt the bolt fastening on energy dissipation step 6, so that subsequent maintenance is changed, first dowel steel 16 can be pre-buried in escape canal bottom plate 4 before energy dissipation step 6 is pour, the joint strength between energy dissipation step 6 and the escape canal bottom plate 4 can be strengthened in setting up of first dowel steel 16, improve the rivers scouring force that energy dissipation step 6 bore, first angle steel 15 set up and can effectively prevent rivers from eroding its erodeing, energy dissipation step 6's life has been improved to a certain extent.

Further, in order to improve the energy dissipation and speed reduction effects of the rectifying pool 2, as shown in fig. 4 and 5, second angle steels 17 are fixedly installed on the vertical surface 10 and the horizontal surface 11 of the polygonal weir 9, a plurality of second dowels 18 are installed between the polygonal weir 9 and the interior of the rectifying pool bottom plate 7, the second dowels 18 are arranged along the width direction of the polygonal weir 9, third angle steels 19 are installed at the bottom end position of the breast wall 13, a plurality of third dowels 20 are installed between the breast wall 13 and the rectifying pool side walls 8 on the two sides, and the third dowels 20 are arranged along the vertical direction of the breast wall 13. Above-mentioned second dowel bar 18 has improved the joint strength between broken line weir 9 and the rectifier tank bottom plate 7, and third dowel bar 20 has improved breastwork 13 and the joint strength of both sides rectifier tank side wall 8, has guaranteed the shock resistance of broken line weir 9 and breastwork 13 to rivers, and the setting of second angle steel 17 and third angle steel 19 has improved the resistant erosion and corrosion performance of broken line weir 9 and breastwork 13 respectively, has guaranteed the life of whole rectifier tank 2.

A compound energy dissipater suitable for domatic drainage of long distance, complicated topography can take the following scheme to implement: 1, performing hydraulic calculation according to the drainage flow and slope terrain conditions to determine a slope drainage ditch path and a start point; 2, performing hydraulic calculation and structural calculation according to the drainage flow and the slope of each slope along the drainage ditch to determine the section size of the drainage ditch and the height of the energy dissipation step 6; 3, arranging a rectifying pool 2 at the position where the flow velocity is close to 10m/s or the drainage line turns according to the flow velocity increasing rule and the topographic condition in the drainage ditch, and determining the distribution of the rectifying pool 2 along the way; 4, performing hydraulic calculation and structural calculation according to conditions such as drainage flow, inlet flow velocity and the like to determine the structural size of the rectifying pool 2; 5, according to the drainage line and the structure size determined in the steps, the rectifying tanks 2 are distributed, and drainage ditch foundation excavation, reinforcement binding, angle steel welding, joint water stopping and embedding and concrete pouring are carried out.

Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.

Claims (3)

1. The utility model provides a compound energy dissipater suitable for domatic drainage of long distance, complicated topography, includes upstream drainage ditch (1), rectification pond (2) and low reaches drainage ditch (3), its characterized in that: the upper drainage ditch (1) and the lower drainage ditch (3) both comprise drainage ditch bottom plates (4) and drainage ditch side walls (5) vertically arranged on two sides of the drainage ditch bottom plates (4), a plurality of energy dissipation steps (6) are installed in the length direction of the drainage ditch bottom plates (4), the rectifying pool (2) comprises rectifying pool bottom plates (7) and rectifying pool side walls (8) vertically arranged on two sides of the rectifying pool bottom plates (7), wherein the rectifying pool (2) is positioned between the upper drainage ditch (1) and the lower drainage ditch (3), the rectifying pool side walls (8) are respectively and tightly butted with the drainage ditch side walls (5) at two ends, a broken line weir (9) is arranged on the rectifying pool bottom plate (7) close to one side of the lower drainage ditch (3), the broken line weir (9) comprises a vertical surface (10), a horizontal surface (11) and an inclined surface (12), and the cross section of the broken line weir is in a right trapezoid shape, inclined plane (12) and the ditch bottom plate of low reaches escape canal (3) (4) upper surface are in same straight line position department, are corresponding to position department of vertical face (10) on broken line weir (9), install breastwall (13) between rectifier cell side wall (8) of both sides, and the upper end of breastwall (13) is parallel and level with the upper end of rectifier cell side wall (8), leaves out water passageway (14) between the bottom of breastwall (13) and horizontal plane (11).

2. The composite energy dissipater suitable for long-distance and complex-terrain slope drainage according to claim 1, wherein: the energy dissipation step (6) is cast by adopting steel fiber concrete, a first angle steel (15) is fixedly installed at a convex angle of the energy dissipation step (6), a plurality of first inserting bars (16) are installed between the energy dissipation step (6) and the inside of the drainage ditch bottom plate (4), and the first inserting bars (16) are arranged along the width direction of the energy dissipation step (6).

3. The composite energy dissipater suitable for long-distance and complex-terrain slope drainage according to claim 1, wherein: fixed mounting second angle steel (17) are gone up in vertical face (10) and horizontal plane (11) of broken line weir (9), install a plurality of second dowel bars (18) between broken line weir (9) and rectifier cell bottom plate (7) inside, second dowel bar (18) are along the width direction setting of broken line weir (9), locate to install third angle steel (19) in the bottom position of breastwork (13), install a plurality of third dowel bars (20) between breastwork (13) and both sides rectifier cell side wall (8), third dowel bar (20) are along the vertical direction setting of breastwork (13).

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