CN221235997U - Vertical seepage-proof throttle gate for river channel in plain soft soil area - Google Patents
Vertical seepage-proof throttle gate for river channel in plain soft soil area Download PDFInfo
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- CN221235997U CN221235997U CN202322939846.9U CN202322939846U CN221235997U CN 221235997 U CN221235997 U CN 221235997U CN 202322939846 U CN202322939846 U CN 202322939846U CN 221235997 U CN221235997 U CN 221235997U
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- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 1
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Abstract
The utility model discloses a vertical impermeable check gate for a river channel in a plain soft soil area, which comprises a gate pier and a bottom plate arranged at the bottom of the gate pier, wherein a gate and a breast wall are arranged in the gate pier, the bottom of the bottom plate is a vertical impermeable wall, the vertical impermeable wall is of a double-wall structure and is respectively arranged at the upstream end and the downstream end of the check gate and simultaneously serves as a foundation of the check gate.
Description
Technical Field
The utility model relates to the technical field of throttle gates, in particular to a vertical seepage-proofing throttle gate for a river channel in a plain soft soil area.
Background
Plain soft soil region: most coastal areas in eastern China are alluvial, coastal areas are plain, upper soil layers are usually a first sea-phase sediment layer of a fourth system and a second land-phase alluvial layer of the fourth system, and most of the soil layers are silt clay layers, and the soil layers are generally high in natural water content, large in natural pore ratio, small in permeability coefficient, low in shear strength and the like, and are poor in soil conditions and low in foundation bearing capacity.
Vertical impermeable load-bearing foundation: the vertical impervious walls at the upper and lower sides are used as the foundation of the upper sluice, so that the impervious capacity of the sluice foundation is improved, and the sluice foundation treatment workload is reduced.
And (3) a throttle valve: sluice for cutting off river channel or ditch, raising upstream water level, increasing upstream water storage and controlling down leakage
Most coastal areas in eastern China are alluvial, sea areas are plain, upper soil layers are normally a first sea-phase sediment layer of a fourth system and a second land-phase alluvial layer of the fourth system, most of the coastal areas are silt clay layers, soil conditions are poor, and foundation bearing capacity is low. The river-blocking throttle is built on a soft foundation, the pile foundation or a filling method is generally adopted for treating the gate foundation, the throttle is impermeable by adopting horizontal impermeable, the length of a gate chamber section is longer, the investment is large, and the construction period is long.
Disclosure of utility model
The utility model aims at solving the technical defects existing in the prior art and provides a river channel vertical seepage-proofing throttle gate in a plain soft soil area.
The technical scheme adopted for realizing the purpose of the utility model is as follows:
the utility model provides a plain soft soil area river course prevention of seepage control floodgate perpendicularly, includes the gate mound and arranges in the bottom plate of gate mound bottom, gate and breast wall have been arranged in the gate mound, the bottom of bottom plate is perpendicular barrier wall, perpendicular barrier wall is double-channel wall structure, arranges respectively at the upper and lower extreme of throttle floodgate, simultaneously doubles as the basis of throttle floodgate, as the bearing stake wall of upper portion throttle floodgate lock chamber section to make upper portion throttle floodgate chamber section shorten, lower part floodgate base prevention of seepage performance reinforcing.
Wherein, perpendicular cut-off wall adopts prestressed concrete flat pile, U type sheet pile and one of wave stake.
The connection parts of pile plates of the vertical impervious wall are connected through stirring piles or jet grouting piles.
The vertical impervious wall is constructed by adopting a pile planting method, and is driven into a preset position by adopting pile driving.
And the pile tops of the vertical impervious walls are paved with cushion concrete layers, and the pile tops of the vertical impervious walls are welded with anchor bars.
The bottom plate is formed by pouring concrete above a cushion layer concrete layer of the pile top of the vertical impervious wall.
The utility model comprises a gate pier and a bottom plate arranged at the bottom of the gate pier, wherein a gate and a breast wall are arranged in the gate pier, the bottom of the bottom plate is a vertical impervious wall, the vertical impervious wall is of a double-channel wall structure and is respectively arranged at the upstream end and the downstream end of a throttle gate, and meanwhile, the vertical impervious wall is also used as a foundation of the throttle gate and is used as a bearing pile wall of an upper throttle gate chamber section, so that the upper throttle gate chamber section is shortened, and the seepage resistance of a lower gate base is enhanced.
Drawings
FIG. 1 is a schematic cross-sectional view of a river vertical impermeable check brake in plain soft soil areas according to the present utility model.
FIG. 2 is a schematic top view of the vertical cut-off wall arrangement of the river vertical cut-off gate in plain soft soil areas according to the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Along with the development of science and technology and manufacturing industry, novel precast piles such as steel sheet piles, FRP sheet piles, precast concrete sheet piles and the like for the diaphragm wall and advanced construction process layers are endless, so that the applicant researches to adopt two precast piles to form a vertical diaphragm wall as a water gate vertical seepage-proofing structure so as to reduce the length of a gate chamber section and also as a gate chamber section supporting structure, and simultaneously reduce the length of the gate chamber section and the foundation treatment workload so as to achieve the purposes of convenient construction, strong engineering reliability and investment saving.
As shown in fig. 1 to 2, the river vertical impermeable check gate in plain soft soil areas comprises a gate pier 4 and a bottom plate 3 arranged at the bottom of the gate pier, wherein a gate 6 and a breast wall 5 are arranged in the gate pier, the bottom of the bottom plate 3 is a vertical impermeable wall 1, the vertical impermeable wall is of a double-channel wall structure, is respectively arranged at the upstream end and the downstream end of the check gate, and simultaneously serves as a foundation of the check gate and serves as a bearing pile wall of an upper check gate chamber section, so that the upper check gate chamber section is shortened, and the impermeable performance of a lower gate base is enhanced.
According to the embodiment of the application, the vertical impervious walls are respectively arranged at the upstream end and the downstream end of the check gate base and serve as the basis of the check gate, so that the length of the upper check gate chamber section is shortened, and the impervious performance of the lower gate base is enhanced.
In the embodiment of the utility model, the vertical impervious wall can adopt bearing piles such as prestressed concrete flat piles, U-shaped sheet piles, wave piles and the like, and can also play the role of a lock chamber section bearing pile wall.
In the embodiment of the utility model, the gate base seepage prevention principle of the double-channel vertical seepage prevention wall is basically the same as that of a common vertical seepage prevention sluice, but the effect of the two vertical seepage prevention walls is better, and the downstream side seepage prevention wall is more beneficial to the stability of a sluice chamber section under the condition of reverse water blocking. During construction, the construction can be carried out according to the conditions: when the water retaining head of the throttle valve is higher, the construction can be carried out by adopting a method of drilling, stirring and jet grouting at the joint of the pile positions of the impervious wall to form piles and then implanting sheet piles into the piles; the construction can be performed by adopting a driving method under the condition of lower water blocking head of the throttle valve.
In the embodiment of the utility model, the two seepage-proofing pile walls can prevent the treatment of the gate foundation and have stronger adaptability to the foundation under the gate, so the technical scheme is not limited by site conditions, is convenient and fast to construct, saves investment and has little influence on surrounding environment, can be widely applied to various projects of water conservancy industry and municipal drainage engineering, and has stronger social popularization and economic value.
According to the river channel vertical seepage-proofing check gate in the plain soft soil area, disclosed by the embodiment of the utility model, the design is carried out according to geological conditions of the check gate, seepage proofing and stability calculation are carried out on the upstream and downstream seepage-proofing walls, the seepage-proofing walls penetrate through the shallower permeable layer under the gate, and the bottom of the pile wall is arranged on the firmer relative impermeable soil layer.
The pile plate connecting part of the vertical impervious wall is connected through a stirring pile or a jet grouting pile 7, the vertical impervious wall 1 is constructed by adopting a pile planting method, and is driven into a preset position for construction by adopting pile driving.
Wherein, the bottom plate 3 is formed by pouring concrete over the cushion layer concrete layer 2 of the pile top of the vertical impervious wall 1.
The specific implementation steps are as follows:
(1) And paying off according to the position of the vertical impervious wall of the check gate, excavating earthwork to the elevation (building base surface) of the pile top, constructing precast piles of the vertical impervious wall by adopting a pile planting method, constructing stirring piles or jet grouting piles at the joint positions of the piles of the vertical impervious wall, and connecting the piles of the vertical impervious wall.
(2) And driving precast piles of the vertical impervious wall by pile driving equipment. It should be noted that the driving of the precast pile of the vertical impervious wall is completed within 4 hours after the construction of the stirring pile or the jet grouting pile is completed, and the pile sinking of the precast pile of the vertical impervious wall is required to be continuously carried out without stopping until the construction of one vertical impervious wall is completed. If a stop occurs in the middle, the seam is sealed by adopting rotary spraying or swing spraying at the upstream of the seam position.
(3) And cleaning the precast pile head of the vertical impervious wall, paving cushion concrete 2 at the upper end of the precast pile head, and welding anchoring ribs 8 on the precast pile end plate of the vertical impervious wall.
(4) And constructing a bottom plate of the throttle valve. The precast pile top end plate of the vertical impervious wall is welded with the bottom plate bottom layer steel bar 9 of the throttle gate through an anchor bar 8, and then bottom plate concrete is poured to form the bottom plate of the throttle gate of a reinforced concrete structure.
(5) And constructing upper structures such as a gate pier 4 and a breast wall 5 of the throttle gate, and constructing bank walls on two sides of the throttle gate and upstream and downstream anti-impact and energy dissipation facilities to finish the construction of upper-layer gate equipment.
(6) Finally, the gate 6 is installed, and the whole construction process is finished.
Compared with the traditional throttle gate, the vertical anti-seepage throttle gate provided by the embodiment of the utility model has the following advantages:
1) By adopting two vertical impervious walls, the anti-seepage effect is good, the anti-impact capacity of the lock chamber section is strong, and the upstream and downstream energy dissipation measures can be simplified.
According to the technical scheme, the driven precast pile vertical impervious wall is adopted at the bottom of the sluice gate, the sluice gate foundation soil body can be compacted when the sluice gate is driven, the permeability coefficient of soil body is reduced, meanwhile, the vertical impervious wall stretches into the relatively impermeable layer, seepage of the relatively permeable layer below the sluice gate foundation can be blocked, seepage damage is prevented, the seepage quantity of the sluice gate foundation is reduced, and compared with a horizontal seepage prevention sluice gate, the seepage prevention effect is outstanding. In addition, compared with a vertical impermeable sluice, the seepage diameter is increased more, and the impermeable effect is relatively good.
The two impervious walls are arranged at the positions of the upstream end and the downstream end of the sluice bottom plate, both the two impervious walls adopt precast pile structures, the sluice foundation has strong impact resistance, and sluice with smaller upstream and downstream water level difference is designed, so that the design of upstream and downstream impact resistance and energy dissipation can be simplified, and the investment is saved.
2) The two-way water retaining device can be used for retaining water in two directions, has the same reverse water retaining effect as the forward water retaining effect, and is more suitable for the operating conditions of the throttle brake in plain areas.
The sluice in the plain area is provided with a bidirectional water retaining working condition, the sluice gate is arranged on the downstream side during the design of the horizontal anti-seepage throttle valve, the stability of the sluice chamber is kept by the water weight in the sluice chamber, and when the reverse water retaining height is large, the stability of the sluice chamber section is ensured by increasing the length of the sluice chamber section. And only the upstream side vertical seepage-proof check gate is arranged, so that the gate base lifting pressure is increased during reverse water blocking, and the stability of the gate chamber is not facilitated. According to the technical scheme, the anti-seepage wall is respectively arranged at the upstream and downstream of the gate base, the reverse water retaining effect is the same as the forward water retaining effect, the gate chamber is stably ensured by the anti-seepage wall structure, the investment is not required to be increased, and the anti-seepage wall structure can adapt to the forward and reverse water retaining operation conditions of the throttle gate in the plain area.
3) The impervious wall is also used as a lock chamber foundation, so that the engineering quantity of the lock chamber and the basic treatment engineering quantity are reduced, and the manufacturing cost is reduced by more than 20 percent compared with that of a conventional throttle valve.
The vertical impervious walls are arranged at the two ends of the upstream side and the downstream side of the lock chamber, the lock chamber section can be regarded as a prefabricated pile wall foundation, the length of the lock chamber section is shortened, foundation treatment is avoided, investment is saved by more than 30% compared with a pile foundation sluice, and investment is saved by more than 20% compared with a horizontal impervious throttle of a general replacement-filling treatment foundation.
4) The precast pile is adopted as an anti-seepage body and a foundation, so that the earth excavation and the construction water-drainage amount are reduced, the construction progress is accelerated, the influence on the surrounding environment is small, and the water and soil conservation is facilitated.
The anti-seepage body adopts precast piles, and can be combined with bearing piles such as wave piles, sheet piles and wall piles. The prefabricated pile diaphragm wall can be constructed after the river channel drains clear water, the prefabricated pile is fast in construction speed, small in construction working face, free of well point dewatering, small in earthwork excavation amount, capable of reducing influences of construction period on surrounding environment and underground water to the greatest extent and reducing water and soil loss.
5) The brake base has strong adaptability, high reliability of integrity, convenient construction and strong social popularization and economic value.
In summary, it can be seen that the vertical anti-seepage throttle provided by the scheme of the utility model uses the anti-seepage body as a bearing foundation, the gate foundation does not need to be additionally treated, the whole of the gate chamber section is strong, the reliability is high, the construction of the vertical anti-seepage bearing foundation is convenient, the influence on the surrounding environment is small during construction, the vertical anti-seepage throttle is more suitable for the operating condition of the throttle in plain areas, the investment is saved, the vertical anti-seepage throttle is suitable for irrigation ditches and various river channel throttle projects in plain areas, and the vertical anti-seepage throttle has stronger social popularization and economic value.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof;
The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. The utility model provides a plain soft soil area river course prevention of seepage control festival, includes the gate pier and arranges in the bottom plate of gate pier bottom, gate and breast wall have been arranged in the gate pier, its characterized in that, the bottom of bottom plate is perpendicular diaphragm wall, perpendicular diaphragm wall is double-channel wall structure, arranges respectively at the upper and lower extreme of festival floodgate, simultaneously doubles as the basis of festival floodgate, as the bearing stake wall of upper portion festival floodgate lock chamber section to make upper portion festival floodgate lock chamber section shorten, lower part floodgate base prevention of seepage performance reinforcing.
2. The vertical seepage control joint brake for river courses in plain soft soil areas according to claim 1, wherein the vertical seepage control wall is one of prestressed concrete flat piles, U-shaped sheet piles and wave piles.
3. The river channel vertical seepage control joint brake of plain soft soil areas according to claim 1, wherein the connection parts of pile plates of the vertical seepage control walls are connected through stirring piles or jet grouting piles.
4. The vertical seepage control joint brake for river courses in plain soft soil areas according to claim 1, wherein the vertical seepage control wall is constructed by pile planting method and driven into a preset position by pile driving.
5. The plain soft soil area river channel vertical impermeable check brake of claim 1, wherein a cushion concrete layer is laid on the pile top of the vertical impermeable wall, and anchoring ribs are welded on the pile top of the vertical impermeable wall.
6. The river vertical seepage-proofing throttle of plain soft soil area according to claim 1, wherein the bottom plate is formed by casting concrete above a cushion concrete layer of a pile top of the vertical seepage-proofing wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322939846.9U CN221235997U (en) | 2023-10-31 | 2023-10-31 | Vertical seepage-proof throttle gate for river channel in plain soft soil area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322939846.9U CN221235997U (en) | 2023-10-31 | 2023-10-31 | Vertical seepage-proof throttle gate for river channel in plain soft soil area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221235997U true CN221235997U (en) | 2024-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322939846.9U Active CN221235997U (en) | 2023-10-31 | 2023-10-31 | Vertical seepage-proof throttle gate for river channel in plain soft soil area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221235997U (en) |
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2023
- 2023-10-31 CN CN202322939846.9U patent/CN221235997U/en active Active
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