New and old lock chamber water stop structure suitable for temporary flood season

Abstract

The new and old lock chamber water stop structure suitable for the temporary flood season comprises a new lock chamber arranged adjacent to the rear side of an old lock chamber, and a working groove is formed in the end of a bottom plate of the old lock chamber; a water stop piece is arranged at the parting position of the new lock chamber and the old lock chamber, one end of the water stop piece is embedded in concrete of the new lock chamber, and the other end of the water stop piece is suspended in the working groove; a drainage ditch is formed in the bottom of the working groove, a supporting piece connected to the outer side of the water stop piece in a covering mode is arranged above the drainage ditch, secondary pouring concrete filled in the working groove is arranged on the outer side of the supporting piece, and an anchor rod is arranged in the secondary pouring concrete. The flood control waterstop structure is simple in structure, convenient to construct and low in maintenance cost, the new lock chamber is poured before the first flood season, the old lock chamber is not detached before the first flood season, the flood control waterstop structure arranged between the new lock chamber and the old lock chamber can solve the waterstop connection problem of the new lock chamber and the old lock chamber, normal overflowing of the new lock chamber and the old lock chamber in the first flood season can be guaranteed, and the service life of the new lock chamber and the old lock chamber is prolonged. And the flood discharge requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to water conservancy engineering technical field especially is related to a new and old lock chamber water stop structure suitable for temporary flood season. BACKGROUND

[0002] In the reinforcement of the flood discharge lock, considering the construction progress, flood safety and other factors, the design scheme of using the old lock chamber as a cofferdam and building a new lock chamber behind the old lock chamber can be adopted. Because the new lock chamber and the stilling basin have too large engineering quantity, they cannot be completed in a non-flood season, so the reservoir faces the risk of passing the flood season in the flood season. Specifically, the old lock chamber is used as a water retaining building in the first non-flood season, and a cofferdam is arranged in front of the old lock chamber after the first non-flood season to remove the bottom plate of the old lock chamber and then pour the bottom plate concrete, so there is a problem of water stop connection between the new and old concrete bottom plates. When the conventional water stop is arranged at the joint of the new and old concrete, a part of the old concrete structure is chiseled, and after the water stop is installed, secondary pouring is carried out to restore the original bottom plate structure. However, for the pouring of the new and old lock chamber bottom plate concrete, the effective connection of the water stop needs to be ensured to ensure the normal flow in the first flood season. SUMMARY

[0003] In order to solve the above problems, the utility model provides a new and old lock chamber water stop structure suitable for temporary flood season, and the following technical scheme can be specifically adopted:

[0004] The new and old lock chamber water stop structure suitable for temporary flood season, comprising a new lock chamber arranged adjacent to the rear side of the old lock chamber, and a working groove is formed in the end of the bottom plate of the old lock chamber; a water stop element is arranged at the joint of the new lock chamber and the old lock chamber, one end of the water stop element is embedded in the concrete of the new lock chamber, and the other end is suspended in the working groove; a drainage ditch is formed in the bottom of the working groove, a support element is arranged above the drainage ditch and connected to the outer side of the water stop element, secondary pouring concrete is filled in the working groove on the outer side of the support element, and an anchor rod is arranged in the secondary pouring concrete.

[0005] The water stop element is arranged in the middle of the working groove and comprises a first water stop and a second water stop arranged below the first water stop.

[0006] The first water stop is made of red copper, and the second water stop is made of rubber.

[0007] The central axis of the drainage ditch and the extension direction of the water stop element are arranged in the same direction, and the drainage ditch is located on the outer side of the projection of the water stop element.

[0008] The support element is a U-shaped structural element sequentially connected by a cover plate, a vertical plate and a support plate, the cover plate is arranged above the drainage ditch and is provided with a water leakage hole, and the free end of the support plate is embedded in the concrete of the new lock chamber.

[0009] The anchor bolts include a first anchor bolt and a second anchor bolt. The first anchor bolt has an L-shaped structure, with one end welded to the vertical plate and the other end extending into the old gate chamber concrete. The second anchor bolt is set above the support plate, with its ends extending into the old gate chamber concrete and the new gate chamber concrete, respectively, and welded together in the middle.

[0010] The outer side of the waterstop is wrapped with geomembrane and geotextile.

[0011] The water-stopping structure for new and old gate chambers provided by this utility model is simple in structure, convenient in construction, and low in maintenance cost. The new gate chamber is poured before the first flood season, and the old gate chamber is not demolished before the first flood season. The water-stopping structure set between the two can solve the water-stopping connection problem between the new and old gate chambers and ensure that the new and old gate chambers can pass normally during the first flood season, thus meeting the flood control requirements. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 yes Figure 1 A schematic diagram of the bottom cover plate of the middle support component. Detailed Implementation

[0014] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific construction processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0015] like Figure 1 , 2As shown, the water-stopping structure for temporary flood season in the new and old gate chambers described in this utility model includes a new gate chamber 2 adjacent to the rear of the old gate chamber 1, with the bottom plate surfaces of both chambers having the same height. The bottom plate of the old gate chamber 1 has a 1×1.5m (width×height) working groove at its end, which is used to install the water-stopping structure. Specifically, a first water-stopping element 3 and a second water-stopping element 4 are installed at the joint between the new gate chamber 2 and the old gate chamber 1. The first water-stopping element 3 is made of copper and is located 0.7m from the top surface of the working groove; the second water-stopping element 4 is made of rubber and is located 0.3m from the bottom surface of the working groove. One end of both the first water-stopping element 3 and the second water-stopping element 4 is embedded in the concrete of the new gate chamber 2, while the other end is suspended in the working groove. A drainage ditch 5 is also provided at the bottom center of the working trench. This drainage ditch 5 is located outside the projection of the water-stopping element, with a cross-sectional dimension of 0.1 × 0.1 m (width × height). Its central axis is aligned with the extension direction of the water-stopping element, and it is used for drainage of the gate chamber. Above the drainage ditch 5 is a support member 6, which covers the outside of the first water-stopping element 3 and the second water-stopping element 4. This support member 6 is a U-shaped structure made of bent steel plate, serving both as support and as a template. Specifically, the support member 6 includes a cover plate, a vertical plate, and a support plate connected in sequence. The cover plate is below, and the support plate is above. The cover plate is 0.3 m wide and covers the drainage ditch 5, with multiple drainage holes 7 evenly spaced 1 m apart. The support plate is parallel to the cover plate, with its free end extending horizontally to the right and embedded in the concrete of the new gate chamber 2 for at least 0.3 m. The working trench outside the support member 6 is filled with secondary poured concrete 8. To enhance structural stability, the first anchor rod 9 is L-shaped, with one end welded to the vertical plate of the support member 6 and the other end extending into the concrete of the old gate chamber 1. The second anchor rod 10 is positioned above the support plate of the support member 6, and is divided into two sections. The left end of the left section extends into the concrete of the old gate chamber 1, and the right end of the right section extends into the concrete of the new gate chamber 2. The right ends of the left section and the left ends of the right section are welded together. Both the first anchor rod 9 and the second anchor rod 10 are horizontally positioned, with multiple rods arranged from top to bottom, and the length embedded in the concrete of the old and new gate chambers is at least 0.5m. The secondary poured concrete 8 is connected to the bottom slab of the new gate chamber 2, leaving only a construction joint and no expansion joint. For the first waterstop 3 and the second waterstop 4, a protective layer of geomembrane and a layer of 400g / ㎡ geotextile are required.

[0016] During construction, the new gate chamber is first poured before the first flood season. During the pouring, the old gate chamber is not demolished, and the water-stopping flood control structure described in this utility model is completed at the same time. After the first flood season has passed safely, the secondary poured concrete 8 and the remaining bottom slab of the old gate chamber 1 are removed. The support member 6 and the second anchor rod 10 are cut off from the upstream face of the new gate chamber 2. After the reinforcement of the bottom slab of the old gate chamber 1 is tied, a closed-cell foam board is installed on the top of the first water-stopping member 3, and the top surface is sealed with sealant.

[0017] It should be noted that in the description of this utility model, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", and "outer" indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A water-stopping structure for new and old gate chambers suitable for temporary flood control, characterized in that: The system includes a new gate chamber located adjacent to the rear of the old gate chamber. A working groove is provided at the end of the bottom plate of the old gate chamber. A water-stopping element is provided at the joint between the new and old gate chambers. One end of the water-stopping element is embedded in the concrete of the new gate chamber, and the other end is suspended in the working groove. A drainage ditch is provided at the bottom of the working groove. A support member is provided above the drainage ditch and covers the outside of the water-stopping element. Secondary concrete is filled in the working groove on the outside of the support member. Anchor rods are installed in the secondary concrete.

2. The new and old gate chamber water-stopping structure suitable for temporary flood season as described in claim 1, characterized in that: The water-stopping element is located in the middle of the working groove, and includes a first water-stopping element and a second water-stopping element spaced below it.

3. The new and old gate chamber water-stopping structure suitable for temporary flood season as described in claim 2, characterized in that: The first water stop is made of copper, and the second water stop is made of rubber.

4. The new and old gate chamber water-stopping structure suitable for temporary flood season as described in claim 1, characterized in that: The central axis of the drainage ditch is aligned with the extension direction of the water-stopping element, and the drainage ditch is located outside the projection of the water-stopping element.

5. The new and old gate chamber water-stopping structure suitable for temporary flood season as described in claim 4, characterized in that: The support member is a U-shaped structure consisting of a cover plate, a vertical plate, and a support plate connected in sequence. The cover plate is located above the drainage ditch and has a water leakage hole. The free end of the support plate extends and is embedded in the concrete of the new gate chamber.

6. The new and old gate chamber water-stopping structure suitable for temporary flood season as described in claim 5, characterized in that: The anchor bolts include a first anchor bolt and a second anchor bolt. The first anchor bolt has an L-shaped structure, with one end welded to the vertical plate and the other end extending into the old gate chamber concrete. The second anchor bolt is set above the support plate, with its ends extending into the old gate chamber concrete and the new gate chamber concrete, respectively, and welded together in the middle.

7. The new and old gate chamber water-stopping structure suitable for temporary flood season as described in claim 1, characterized in that: The outer side of the waterstop is wrapped with geomembrane and geotextile.

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