Bottom plate anti-floating device

Abstract

The utility model relates to the technical field of building construction, and discloses a bottom plate anti-floating device which aims at solving the technical problem that a bottom plate floats up before dewatering and drainage can be stopped during construction due to abundant underground water systems or shallow underground water layers in part of projects, and comprises a pressure relief hole penetrating through the side wall of a water collecting well, the galvanized steel pipe is arranged on the side wall of the water collecting well and transversely penetrates through the pressure relief hole, a waterproof layer and a brick blank film are sequentially arranged on the inner side of the side wall of the water collecting well from inside to outside, and a coiled waterproof reinforcing material for sealing is arranged at the joint of the pressure relief hole and the galvanized steel pipe; the galvanized steel pipe is divided into an inner section, a middle section and an outer section, and the middle section is provided with a water stop ring and welded to the galvanized steel pipe. A plurality of water inlet holes are formed in the inner section of the galvanized steel pipe, the water inlet holes are coated with filter screens, and gravels are backfilled on the outer sides of the filter screens; the device further comprises a pressure gauge, a spring safety valve and a gate valve. An anti-floating device is arranged in the water collecting well at the dewatering and drainage point, and the dewatering and drainage measures are implemented on the bottom plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field especially relates to a bottom plate anti -floating device. BACKGROUND

[0002] In the basement construction process of super high-rise building, the height of underground water level plays a crucial role in the construction quality of bottom plate and the stability of overall structure. Especially in the area rich in underground water system or shallow underground water level, due to the influence of water pressure, the bottom plate may be at risk of floating up during construction due to the buoyancy, affecting the construction progress and structural safety of the building. The traditional drainage measures usually cannot completely eliminate this problem, especially in the case of continuous drainage, the anti-floating of the bottom plate becomes a big problem in construction.

[0003] Therefore, in order to solve the problem of floating up of the bottom plate due to high water pressure, a device combining pressure relief, anti-floating and stability function is designed, and the anti-floating device is convenient for construction and suitable for the area with shallow underground water level. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a bottom plate anti-floating device to solve the technical problem that the bottom plate will float up before the construction can stop the drainage in the area rich in underground water system or shallow underground water level.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a bottom plate anti-floating device applied in a catch basin, which comprises a pressure relief hole penetrating the lateral wall of the catch basin, a galvanized steel pipe horizontally penetrating the pressure relief hole and arranged on the lateral wall of the catch basin, a waterproof layer and a brick membrane arranged in the inside of the lateral wall of the catch basin from inside to outside in sequence, and a coiled waterproof reinforcing material arranged at the joint of the pressure relief hole and the galvanized steel pipe for sealing.

[0006] The galvanized steel pipe is divided into three parts, i.e. an inner section, a middle section and an outer section, wherein the middle section located in the middle of the catch basin is provided with a water stop ring welded on the galvanized steel pipe.

[0007] The inner section of the galvanized steel pipe is provided with a plurality of water inlet holes, and the water inlet holes are covered with a filter screen, and the outside of the filter screen is backfilled with gravel.

[0008] The bottom plate anti-floating device further comprises a pressure gauge, a spring safety valve and a gate valve, the pressure gauge and the spring safety valve are installed on the outer section of the galvanized steel pipe and are respectively used for monitoring the water pressure in the catch basin in real time and automatically adjusting the pressure relief when the water pressure is too high; the gate valve is arranged at the end of the outer section of the galvanized steel pipe and is used for adjusting the pressure relief amount.

[0009] Further, the water stop ring is arranged at a distance of 1200mm from the end of the galvanized steel pipe.

[0010] Further, the pressure relief hole is arranged at 500mm below the side wall and the bottom plate cushion of the water collecting well, and the depth of the pressure relief hole is 600mm, the width is 300mm, and the length is 500mm.

[0011] Further, the aperture of the water inlet hole is 10mm, and the interval between adjacent water inlet holes is 40mm.

[0012] Further, the pressure relief hole area is provided with anchor rods for reinforcement.

[0013] The bottom plate anti-floating device provided by the utility model has the following advantages:

[0014] The water collecting well is provided with an anti-floating device, and the water collecting well is provided with a pressure relief hole penetrating through the side wall and a galvanized steel pipe. The device can monitor the water pressure in the water collecting well in real time, automatically release the excess pressure through the spring safety valve when the water pressure is too high, ensure that the basement bottom plate is not affected by the buoyancy and floats up, and manually adjust the pressure relief amount through the gate valve to adapt to different working conditions. The use of the coiled waterproof reinforcing material further enhances the sealing performance of the combination part of the pressure relief hole and the galvanized steel pipe, prevents water from leaking to parts that should not leak, and improves the reliability of the structure. The device has a simple structure, is convenient to construct, is suitable for the construction of the basement of an ultrahigh-rise building in an area with rich underground water systems or shallow underground water level, can significantly improve the bottom plate anti-floating capacity and ensure construction safety. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The bottom plate anti-floating device provided by the utility model is shown in the figure.

[0016] In the figure: 11, pressure gauge; 12, water collecting well side wall; 13, water stop ring; 14, waterproof layer; 15, galvanized steel pipe; 16, coiled waterproof reinforcing; 17, brick membrane; 18, spring safety valve. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and explicit, the utility model is further described in detail below in combination with the drawings and examples.

[0018] Reference Figure 1The utility model provides a kind of bottom plate anti-floating device, and the design of bottom plate anti-floating device involves multiple components of catch basin side wall 12, and is combined by galvanized steel pipe 15, water stop ring 13, pressure gauge 11, spring safety valve 18 and gate valve 19 etc., to realize the control and regulation of water pressure in catch basin.

[0019] According to geological exploration report and actual situation, groundwater level is shallow in part area, to ensure bottom plate construction quality, now need to add pressure relief hole in catch basin side wall 12.The depth of the pressure relief hole is 600mm, the width is 300mm, and the length is 500mm.The pressure relief hole is to facilitate the installation and fixation of galvanized steel pipe 15, and also provides enough space for subsequent equipment installation and waterproof reinforcement.

[0020] The positioning of pressure relief hole is 500mm below catch basin side wall 12 and bottom plate cushion, and the convenience of construction and the needs of later maintenance should be considered in design.

[0021] Catch basin side wall 12 is provided with a transversely penetrating galvanized steel pipe 15, which is provided with waterproof layer 14 and brick membrane 17 on the inner side of catch basin side wall 12, to ensure the waterproofness of catch basin side wall.Galvanized steel pipe 15 penetrates waterproof layer 14 and brick membrane 17, and is sealed by coiled material waterproof reinforcement material 16 between them.The function of coiled material waterproof reinforcement material 16 is to enhance the sealing and waterproof ability of catch basin side wall, effectively prevent moisture penetration and the influence of external environment.

[0022] Coiled material waterproof reinforcement material 16 is specifically overall waterproof by waterproof coating, and the thickness of waterproof coating is not less than 2mm, and non-solidified rubber asphalt waterproof coating is used for strengthening treatment, and gap is filled with non-solidified rubber waterproof coating.

[0023] In catch basin, galvanized steel pipe 15 is divided into three parts.The middle part is located in the core position of catch basin, and the side part is located in the left and right sides of catch basin.In the middle part of catch basin, water stop ring 13 is arranged on galvanized steel pipe 15, and the width of water stop ring is 50mm, and the thickness is 4mm, and it is welded on pipe surface, to ensure that pipe is in sealed state, and water leakage does not occur.

[0024] The galvanized steel pipe 15 is DN100, and the water stop ring 13 is welded at a predetermined position of the galvanized steel pipe 15, and the water stop ring 13 is arranged to ensure that water flow does not leak to a position that should not leak. The galvanized steel pipe 15 is also provided with a plurality of water inlet holes, and the water inlet holes have a hole diameter of 10mm*40mm, so that the water pressure of the water collecting well can be adjusted within a certain range. The section where the water inlet holes are located is wrapped with a filter screen, and the outside is backfilled with gravel with a diameter of 20-40mm, to ensure smooth water flow while preventing large particles from entering the pipeline and blocking the water flow channel. In addition, mortar is used to close all openings to ensure the sealing of the surrounding area of the pipeline.

[0025] In the pressure relief hole area, coiled material is used for waterproof reinforcement, combined with anchor rods for reinforcement. The waterproof reinforcement measures effectively prevent the sidewall of the water collecting well from leaking due to changes in water pressure during construction or use, ensuring the long-term stability of the water collecting well.

[0026] On the right side of the galvanized steel pipe 15, a pressure gauge 11, a spring safety valve 18, and a gate valve 19 are arranged. The pressure gauge 11 is used to monitor the water pressure in the water collecting well in real time, ensuring that the water pressure is within a safe range. The spring safety valve 18 is an automatic adjustment device that automatically opens when the water pressure reaches a set value, releasing excess water pressure to prevent the water pressure in the water collecting well from being too high and causing destructive consequences. The gate valve 19 is used to manually adjust the water flow of the bottom plate anti-floating device to control the release of water pressure, ensuring the stability and safety of the system.

[0027] Specifically, the pressure gauge 11 and the spring safety valve 18 are installed on the galvanized steel pipe 15, and the gate valve 19 is installed at the end of the galvanized steel pipe 15, and the spring safety valve 18 has a size of DN25.

[0028] Through the above optimization, the overall structure of the bottom plate anti-floating device can effectively deal with the water pressure fluctuations and safety hazards that may occur during construction and use of the water collecting well, ensuring the long-term stable operation of the water collecting well.

[0029] The bottom plate anti-floating device provided by the utility model has the following advantages:

[0030] The utility model discloses a bottom plate anti -floating device through setting pressure relief hole in the water collecting well side wall, and accurate design and configuration between the galvanized steel pipe inner section, middle section and outer section, effectively solved the problem of groundwater pressure is too high. First, the water inlet hole and the filter screen design of galvanized steel pipe ensure the smooth of water flow, and through gravel backfill enhances the filtration function of water flow, prevents sundries from entering the pipeline, guarantees the long -term stable operation of system. The setting of the water stop ring is in the middle section part, can effectively prevent water flow leakage, ensure the sealing, and the use of coiled material waterproof reinforcing material further enhances the waterproof performance of water collecting well side wall, avoids moisture penetration, prolongs the service life of system. The pressure gauge installed in the outer section can real -time monitoring water pressure, ensures that water pressure keeps in the safety range, and the spring type safety valve opens the pressure relief automatically when water pressure is too high, avoids the structural damage or security risk caused by water pressure is too big, and the gate valve can be manually adjusted according to need, ensures the flexibility and safety of system. The device can real -time monitoring the water pressure in water collecting well, and when water pressure is too high, through spring type safety valve, the excess pressure is released automatically, ensures that the basement bottom plate is not affected by buoyancy and floats.

[0031] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement etc. in the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A bottom plate anti-floating device applied in a collecting well, characterized in that, The utility model relates to a kind of anti-floating device of bottom plate, including: Pressure relief hole is arranged through the side wall (12) of water collecting well, galvanized steel pipe (15) is arranged on the side wall (12) of water collecting well, waterproof layer (14) and brick membrane (17) are sequentially arranged from inside to outside in the inside of the side wall of water collecting well, coil waterproof reinforcing material (16) is arranged for sealing in the joint of pressure relief hole and galvanized steel pipe (15); The galvanized steel pipe (15) is divided into three parts of inner section, middle section and outer section, wherein the middle section located in the middle of water collecting well is provided with water stop ring (13), welded on galvanized steel pipe (15); The inner section of the galvanized steel pipe (15) is provided with a plurality of water inlet holes, and the water inlet holes are covered with filter screen, and the outside of the filter screen is backfilled with gravel; The bottom plate anti-floating device further comprises a pressure gauge (11), a spring safety valve (18) and a gate valve (19), the pressure gauge (11) and the spring safety valve (18) are installed on the outer section of the galvanized steel pipe (15), respectively for real-time monitoring of water pressure in the water collecting well and automatic adjustment of pressure relief when water pressure is too high, and the gate valve (19) is arranged at the end of the outer section of the galvanized steel pipe (15) for adjusting the amount of pressure relief.

2. The floor anti-floating apparatus according to claim 1, wherein The water stop ring (13) is arranged at a distance of 1200mm from the end of the galvanized steel pipe (15).

3. The floor anti-floating apparatus according to claim 1, wherein The pressure relief hole is arranged 500mm below the side wall (12) of water collecting well and the bottom plate cushion layer, and the depth of the pressure relief hole is 600mm, the width is 300mm, and the length is 500mm.

4. The floor anti-floating apparatus according to claim 1, wherein The aperture of the water inlet hole is 10mm, and the spacing between adjacent water inlet holes is 40mm.

5. The floor anti-floating apparatus according to claim 1, wherein The pressure relief hole area is provided with anchor rods for reinforcement.

6. The floor anti-floating apparatus according to claim 1, wherein The specification of the galvanized steel pipe (15) is DN100.

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