CN204385687U - Without aileron layout of sluice form - Google Patents

Abstract

The utility model is an arrangement form of a wingless wall sluice, which includes a sluice chamber, a bank wall, and energy dissipation and anti-scour facilities. The left and right sides of the sluice chamber are arranged with bank walls, and the upstream and downstream of the sluice chamber are respectively arranged with energy dissipation and anti-scour facilities. , the wing walls located at any one or several of the left bank of the upstream of the sluice, the right bank of the upstream of the sluice, the left bank of the downstream of the sluice, and the right bank of the downstream of the sluice are cancelled, and a slope-type revetment is set instead, and the revetment is arranged against the bank wall and spreads outward. The utility model effectively reduces the scour under the gate, saves investment, shortens the construction period and reduces the difficulty of construction.

Description

Layout form of wingless wall sluice

technical field

The utility model relates to an arrangement form of a sluice on a tidal soft soil foundation in a water conservancy project, in particular to an arrangement form of a sluice without a wing wall.

Background technique

According to the sluice code, the upstream and downstream layout of the conventional sluice chamber is generally a stilling basin, apron, sea diffuser, and anti-scouring groove, and vertical wing walls are generally used on the left and right. The projected length of the wing wall along the flow direction of the water should be greater than or equal to the length of the stilling basin, and the elevation of the top of the wall should be higher than the most unfavorable operating water level, so as to prevent the discharged water from overflowing from the top of the wall to the stilling basin, increasing the single-width flow and affecting energy dissipation Effect. If a figure-eight wing wall is used, the plane diffusion angle is generally 8° to 12°.

Since the foundations of coastal sea locks are mostly soft soil foundations or muddy tidal flats, the top of the wing walls should generally be higher than the design water level, and the load is relatively large. The foundation needs to be treated with pile foundations. Deformation due to subsidence; in addition, coastal sluices generally operate at low water heads, which is a problem of low Floyd's number energy dissipation, and the energy dissipation rate is only about 15%. The starting flow velocity of the river bed is generally very low, reaching 0.80m/s or even lower Easily washed out.

Most of the left and right sides of the sluices on coastal tidal soft soil are connected to seawalls or embankments. The traditional design of the upstream and downstream bank walls generally adopts vertical wing walls, with one side facing the water and the other side retaining soil, which is prone to uneven settlement. As a result, deformation is caused. When the deformation is serious, cracks will be generated, resulting in leakage channels. Therefore, in order to reduce uneven settlement, it is necessary to carry out foundation treatment on a certain range of backfill soil behind the wall, resulting in increased investment; Scrubbing will inevitably occur at the junction of the surface and the concrete, especially near the left and right pan heads of the entrance door. This phenomenon will inevitably increase the foundation protection depth near the end of the sea diffuser and the wing wall pan heads. Once scouring occurs, the riprap in the anti-scouring groove is easy to slide down or even collapse by itself, which seriously endangers the stability of the seaman, apron and even the lock chamber. Therefore, in the actual operation of many projects along the coast, it is often necessary to constantly add stones for maintenance every year, and the cost is huge. Therefore, in order to avoid uneven settlement, achieve better energy dissipation and anti-scouring effect, and save investment, it is necessary to seek a new type of sluice layout.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the prior art, and propose a new type of wingless wall sluice layout that can avoid the influence of uneven settlement and scour under the sluice, and can greatly reduce engineering investment and construction difficulty.

The technical scheme adopted by the utility model is: a layout form of a wingless wall sluice, including a sluice chamber, a quay wall, energy dissipation and anti-scour facilities, the quay walls are arranged on the left and right sides of the sluice chamber, and the upstream and downstream of the sluice chamber are respectively arranged There are energy dissipation and anti-scour facilities, which are characterized in that: any one or several of the wing walls located on the left bank of the upstream of the sluice, the right bank of the upstream of the sluice, the left bank of the downstream of the sluice, and the right bank of the downstream of the sluice are cancelled, and a slope type revetment is set instead. The quay wall is arranged and diffused outward, and the slope protection adopts the form of circular arc or broken line or the combination of circular arc and broken line to spread outward. Any one or several of the wing walls located on the left bank of the upstream of the sluice, the right bank of the upstream of the sluice, the left bank of the downstream of the sluice, and the right bank of the downstream of the sluice are cancelled, and the form of slope protection is changed to include: the left bank of the upstream of the sluice, the right bank of the upstream of the sluice, the sluice Any one or any two or any three or four of the wing walls on the downstream left bank and the downstream right bank of the sluice shall be cancelled, and a slope type revetment shall be set instead.

As a preference, the stilling basin in the energy dissipation and anti-scour facility downstream of the sluice chamber is connected with the downstream slope protection using a concrete platform.

As a preference, the boundaries of the stilling pools in the energy dissipation and anti-scour facilities upstream and downstream of the sluice chamber spread outwards at a plane angle of 8° to 12°.

As a preference, the boundaries of the stilling pools in the energy dissipation and anti-scour facilities upstream and downstream of the lock chamber spread outwards at a plane angle of 10°.

The beneficial effects of the utility model are:

1) There is no wing wall, and the soft soil foundation does not need pile foundation treatment, which reduces the amount of civil works, reduces the construction process, reduces the difficulty of construction, shortens the construction period, and saves investment.

2) There is no wing wall, so that the cross-section of the water is enlarged. After the water flows out of the sluice, it is not restricted and can spread immediately. After the energy dissipation and adjustment of the stilling pool, it is similar to the discharge of the original sea estuary, reducing the outlet flow velocity and conical The scouring phenomenon disappears, reducing the scour near the end of the diffuser and the pan head.

3) There are no wing walls on both sides of the bank, and slope-type slope protection is adopted, which is convenient for later maintenance and repair.

4) Since the construction period of the civil structure has been significantly shortened, favorable conditions have been created for the early completion of the project and the early exertion of drainage and flood control.

Description of drawings

Fig. 1 is the plane layout diagram of the utility model embodiment 1;

Fig. 2 is the longitudinal sectional view of the utility model embodiment 1;

Fig. 3 is a schematic diagram of the section A-A of Fig. 1 .

Fig. 4 is the plane layout diagram of the utility model embodiment 2;

In the figure: 1-sluice chamber; 2-quay wall; 3-energy dissipation and anti-scour facilities; 31-stilling basin; 311-first-level stilling basin; 312-second-level stilling basin; Bottom protection; 34-scouring groove; 4-slope protection; 5-concrete platform; 6-wing wall.

Detailed ways

Embodiment 1: As shown in Fig. 1, Fig. 2 and Fig. 3, a layout form of a wingless wall sluice, including a sluice chamber 1, a bank wall 2, energy dissipation and anti-scour facilities 3, slope protection 4, and a concrete platform 5; energy dissipation The anti-scour facility 3 includes stilling pool 31, seaman 32, bottom protection 33, and anti-scouring groove 34; the stilling pool upstream of the lock chamber is provided with a primary stilling pool 311, and the stilling pool downstream of the lock chamber is provided with a primary Force pool 311, secondary stilling pool 312; anti-scouring groove 34, bottom protection 33, and primary stilling pool 311 are arranged in the upstream of lock chamber 1 along the flow direction in sequence, and primary stilling pool 311, Secondary stilling pool 312, sea diffuser 32, and anti-scouring groove 34. The left bank of the upstream of the sluice, the right bank of the upstream of the sluice, the left bank of the downstream of the sluice, and the right bank of the downstream of the sluice are not equipped with a wing wall 6, but a slope protection 4 is arranged, and the slope protection 4 is arranged against the bank wall 2, and the slope protection 4 spreads outward in the form of a circular arc; the first-level stilling pool The boundary of 311 diffuses outwards at a plane angle with a diffusion angle of 10°, and the boundary of the secondary stilling pool 312 moves 5 meters to both sides at the same diffusion angle; one of the energy dissipation and anti-scour facilities 3 downstream of the lock chamber The primary stilling basin 311, the secondary stilling basin 312 and the slope protection 4 located downstream are connected by a concrete platform 5. Cancellation of wing walls enlarges the cross section of the water. After the energy dissipation and adjustment of the stilling pool, the water flow can form a submerged hydraulic jump on the mandrel, the phenomenon of conical washing disappears, and the end of the mandrel and the vicinity of the pan head are basically free from erosion.

Embodiment 2: As shown in Figure 4, a layout form of a sluice without a wing wall includes a lock chamber 1, a quay wall 2, energy dissipation and anti-scour facilities 3, a slope protection 4, a concrete platform 5, and a wing wall 6; The flushing facility 3 includes a stilling pool 31, a seaman 32, a bottom protection 33, and an anti-scouring groove 34; the upstream of the lock chamber 1 is arranged with an anti-scouring groove 34, a bottom protection 33, and a first-level stilling pool 311 in sequence along the flow direction of the water; In the flow direction, there are primary stilling pool 311 , secondary stilling pool 312 , sea diffuser 32 , and anti-scouring groove 34 arranged in sequence. The difference from Example 1 is that wing walls 6 are set on the left and right banks upstream of the sluice, and slope protection 4 is installed on the left and right banks downstream of the sluice without wing walls 6, and slope protection 4 is arranged against the bank wall 2, and slope protection 4 spreads outwards in the form of broken lines .

In addition to the above-mentioned embodiments, there are other arrangements that cancel the arrangement of the wing wall 6 at any of the four locations on the left bank upstream of the sluice, the right bank upstream of the sluice, the left bank downstream of the sluice, and the right bank downstream of the sluice. situation. The above embodiments describe the utility model in conjunction with the accompanying drawings, but it should not be understood as limiting the patent scope of the utility model. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model.

Claims (7)

1. one kind without aileron layout of sluice form, include lock chamber (1), quaywall (2), dissipation and scouring facility (3), lock chamber (1) left and right side is furnished with quaywall (2), lock chamber upstream and downstream are furnished with dissipation and scouring facility (3) respectively, it is characterized in that: be positioned at left bank, sluice upstream, sluice upstream right bank, Downstream of Sluice left bank, Downstream of Sluice right bank arbitrary place everywhere or aileron (6) cancellation at a few place, change into and ramp type bank protection (4) be set, bank protection (4) lean on quaywall (2) arrange and to external diffusion.

2. according to claim 1 without aileron layout of sluice form, it is characterized in that: described bank protection (4) according to arc form to external diffusion.

3. according to claim 1 without aileron layout of sluice form, it is characterized in that: described bank protection (4) according to broken line form to external diffusion.

4. according to claim 1 without aileron layout of sluice form, it is characterized in that: described bank protection (4) according to circular arc in conjunction with broken line form to external diffusion.

5. according to claim 1 without aileron layout of sluice form, it is characterized in that: the absorption basin (31) in the dissipation and scouring facility (3) in described lock chamber (1) downstream and bank protection (4) adopt concrete platform (5) to be connected.

6. according to claim 1 and 2 without aileron layout of sluice form, it is characterized in that: the border of the absorption basin (31) in the dissipation and scouring facility (3) of described lock chamber (1) upstream and downstream adopts the Plane Angle of 8 ° to 12 ° to external diffusion.

7. according to claim 3 without aileron layout of sluice form, it is characterized in that: the border of the absorption basin (31) in the dissipation and scouring facility (3) of described lock chamber (1) upstream and downstream adopts the Plane Angle of 10 ° to external diffusion.