Raft dewatering and pressure reducing method
By setting up a pressure relief device on the raft, the problem of water retention during water seepage of the raft is solved, and the pressure discharge of water accumulated below the raft is achieved, which reduces the impact on the raft, and is convenient to construct and low cost.
Patent Information
- Application Number
- CN202411837094.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-02-11
AI Technical Summary
The existing technology is difficult to effectively solve the problem of water retention during raft seepage, which makes it difficult to block. The existing drainage ditches can only be temporarily solved and require regular maintenance, which affects the overall appearance.
By installing a pressure relief device on the raft, including drilling holes on the raft, filling pebbles, and installing a pressure relief pipe and filtering assembly, the reduced pressure discharge of the accumulated water under the raft is achieved.
It effectively reduces water level and pressure, reduces the impact on the raft slab, and avoids damage to the raft slab. At the same time, the materials are universal, the cost is low, the construction is convenient, and the operation is simple.
Smart Images
Figure CN119411618A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of building construction, and in particular to a raft dewatering and pressure reducing method. Background Art
[0002] As global climate conditions change, seasonal rainfall increases, and urban groundwater levels tend to rise. This has an impact on some buildings that are older. When these buildings were built, the groundwater level was low, but during use, the groundwater level rises year by year, the water pressure gradually increases, and the impact force on the foundation raft also increases, causing leakage in the foundation raft.
[0003] When the existing raft slab leaks, the water will be retained between the raft slab and the ground, and it is difficult to find the water seepage point, so it is difficult to block it by grouting. Although the method of cutting drainage ditches in the surface layer can temporarily solve the problem, it cannot cure the garage leakage, and the drainage ditch needs regular maintenance. Once blocked, water will accumulate again. In addition, cutting the drainage ditch will also damage the surface layer, affecting the overall appearance of the garage. To this end, the present invention proposes a raft slab precipitation and pressure reduction method. Summary of the invention
[0004] The purpose of the present invention is to address the problem that when there is water seepage on the raft in the background technology, water will be retained between the raft and the ground, and it is difficult to find the water seepage point, so it is difficult to seal it by grouting. Although the method of cutting drainage ditches in the surface layer can temporarily solve the problem, it cannot cure the leakage of the garage, and the drainage ditch needs regular maintenance. Once blocked, water will accumulate again. At the same time, cutting the drainage ditch will also damage the surface layer, affecting the overall appearance of the garage. A raft dewatering and pressure reduction method is proposed.
[0005] On the one hand, the technical solution of the present invention is a raft precipitation and decompression method, comprising:
[0006] S1. Through observation and evaluation on the raft, first find the location of the raft with higher groundwater level and lower terrain, and select the deeper water collection pit in the area;
[0007] S2, using a water drill to drill holes in the selected sump of the raft to form through holes, which penetrate the raft;
[0008] S3, after the through hole is completed, the inside of the through hole is cleaned and filled with pebbles, and the pebble filling height is consistent with the through hole height;
[0009] S4. Install the pressure relief device at the upper port of the through hole opened on the upper surface of the raft plate through the fixing bolt to reduce the pressure and discharge the accumulated water under the raft plate.
[0010] On the other hand, a raft dewatering and pressure reducing method proposed in the present invention comprises the pressure relief device in S4, wherein the pressure relief device comprises a pressure relief pipe, the lower end of the pressure relief pipe is fixedly connected with a first flange, the upper end of the pressure relief pipe is fixedly connected with a pressure relief elbow, one end of the pressure relief elbow is connected with a second flange, a sealing disk is provided on one side of the second flange, and a filter assembly for filtering accumulated water is slidably provided inside the pressure relief pipe.
[0011] Optionally, the filter assembly includes a filter plate, a fixed plate is fixedly provided on one side of the filter plate, a group of slide grooves are opened on the fixed plate, a slider is slidably provided inside the slide groove, a clamping plate is fixedly provided at one end of the slider, and linkage plates are fixedly provided on the outer walls of the clamping plate, a fixed plate is fixedly provided on the outer side of the fixed plate, a rotating cap is rotatably provided on the fixed plate, a threaded rod is fixedly provided through the rotating cap, and the threaded rod is threadedly sleeved with the linkage plate.
[0012] Optionally, an outer wall of the pressure relief pipe is provided with a mounting groove, and upper and lower inner walls of the mounting groove are provided with clamping grooves.
[0013] Optionally, a slot is provided on the inner wall of the pressure relief pipe, and an insert block is fixedly provided on one side of the filter plate.
[0014] Optionally, a sealing ring is provided at the connection between the installation groove and the through hole.
[0015] Optionally, limit blocks are fixedly provided at both ends of the threaded rod.
[0016] Optionally, a sealing rubber ring is provided at the joint between the fixing plate and the pressure relief device.
[0017] Compared with the prior art, the present invention has the following beneficial technical effects:
[0018] The invention provides a pressure relief device above the raft and reduces the pressure of water below the raft through pebbles and a filter assembly, which has a good pressure relief effect, reduces the water level and pressure, reduces the impact on the raft, and avoids the raft from being damaged. The technology also uses common materials, has low manufacturing costs, is easy to construct, and is simple to operate.
[0019] Furthermore, the present invention rotates the rotating cap to drive the threaded rod to rotate, and the threaded rod drives the clamping plate to move through the linkage plate, so that the filter plate can be quickly disassembled and assembled, thereby facilitating the cleaning of blocked impurities, ensuring the drainage efficiency, and improving the drainage stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A structural schematic diagram of a raft dewatering and decompression method of the present invention is provided;
[0021] Figure 2for Figure 1 A schematic cross-sectional structure diagram of ;
[0022] Figure 3 for Figure 1 Structural schematic diagram of the medium pressure relief device;
[0023] Figure 4 for Figure 3 Schematic diagram of part of the structure of the pressure relief device;
[0024] Figure 5 for Figure 3 Schematic diagram of the structure of the filtering component.
[0025] Reference numerals:
[0026] 1. raft; 2. through hole; 3. pebbles; 4. fixing bolts;
[0027] 5. Pressure relief device; 51. Pressure relief pipe; 52. First flange; 53. Pressure relief elbow; 54. Second flange; 55. Sealing disc;
[0028] 56, filter assembly; 561, filter plate; 562, fixed plate; 563, slideway; 564, slider; 565, card plate; 566, linkage plate; 567, fixed plate; 568, rotating cap; 569, threaded rod;
[0029] 6. Installation slot; 7. Card slot; 8. Slot; 9. Insert block; 10. Sealing ring; 11. Limit block; 12. Sealing rubber ring. DETAILED DESCRIPTION
[0030] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments.
[0031] The components of the embodiments of the present disclosure generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the present disclosure claimed, but merely represents selected embodiments of the present disclosure.
[0032] Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present disclosure.
[0033] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0034] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0035] Embodiment 1
[0036] like Figure 1 and Figure 2 As shown, a raft dewatering and decompression method proposed by the present invention comprises:
[0037] Step S1, through observation and evaluation on the raft 1, first find the location of the raft 1 where the groundwater level is higher and the terrain is lower, and select a deeper sump in the area;
[0038] Step S2, using a water drill to drill a hole in the selected sump of the raft 1 to form a through hole 2, wherein the through hole 2 penetrates the raft 1;
[0039] Step S3, after the through hole 2 is completed, the inside of the through hole 2 is cleaned, and the through hole 2 is filled with pebbles 3, and the filling height of the pebbles 3 is consistent with the height of the through hole 2;
[0040] Step S4, the pressure relief device 5 is installed at the upper end of the through hole 2 opened on the upper surface of the raft 1 through the fixing bolt 4, so as to reduce the pressure and discharge the accumulated water under the raft 1.
[0041] Embodiment 2
[0042] like Figures 1 to 4As shown, based on the first embodiment, the pressure relief device 5 in step S4 includes a pressure relief pipe 51, the lower end of the pressure relief pipe 51 is fixedly connected with a first flange 52, and the pressure relief pipe 51 and the first flange 52 are welded, so as to be fixedly connected with the raft 1 through the fixing bolt 4, the upper end of the pressure relief pipe 51 is fixedly connected with a pressure relief elbow 53, and the pressure relief pipe 51 and the pressure relief elbow 53 are sealed and welded, one end of the pressure relief elbow 53 is connected with a second flange 54, and a sealing disk 55 is provided on one side of the second flange 54 for closing one end of the second flange 54, and a filter assembly 56 for filtering accumulated water is slidably provided inside the pressure relief pipe 51, so as to discharge groundwater.
[0043] like Figure 5 As shown, the filter assembly 56 includes a filter plate 561, a fixed plate 562 is fixedly arranged on one side of the filter plate 561, and the filter plate 561 and the fixed plate 562 are integrally formed, a group of slide grooves 563 are opened on the fixed plate 562, and a slider 564 is slidably arranged inside the slide groove 563, and the slide groove 563 and the slider 564 are arranged in a "T" shape structure, which can ensure that the slide between the slide groove 563 and the slider 564 is more stable, and a clamping plate 565 is fixedly arranged at one end of the slider 564, and the clamping plate 565 is fixedly arranged at one end of the slider 564. 65 is an arc-shaped structure. The outer wall of the card plate 565 is fixedly provided with a linkage plate 566 to facilitate the movement of the card plate 565. A fixed plate 567 is fixedly provided on the outer side of the fixed plate 562. A rotating cap 568 is rotatably provided on the fixed plate 567. The outer wall of the rotating cap 568 is provided with an anti-skid groove to increase friction and facilitate rotation. A threaded rod 569 is fixedly provided through the rotating cap 568. The threaded rod 569 is threadedly sleeved with the linkage plate 566 to facilitate the movement of the card plate 565.
[0044] like Figure 4 As shown, the outer wall of the pressure relief pipe 51 is provided with a mounting groove 6, and the upper and lower inner walls of the mounting groove 6 are provided with a clamping groove 7, and the clamping groove 7 is arranged in an arc structure, which facilitates the clamping plate 565 to be stably clamped with the clamping groove 7, thereby limiting the filter plate 561.
[0045] Furthermore, a slot 8 is provided on the inner wall of the pressure relief pipe 51 , and an insert block 9 is fixedly provided on one side of the filter plate 561 to facilitate mutual snap-fitting, limit the filter plate 561 , and ensure the stability of the filter plate 561 .
[0046] Secondly, a sealing ring 10 is provided at the connection between the installation groove 6 and the through hole 2 to increase the sealing performance of the connection between the installation groove 6 and the through hole 2 and prevent the internal groundwater from leaking out.
[0047] Furthermore, limit blocks 11 are fixedly provided at both ends of the threaded rod 569 to limit the linkage plate 566 .
[0048] In addition, a sealing rubber ring 12 is provided at the connection between the fixing plate 562 and the installation groove 6, which can increase the sealing performance of the connection between the fixing plate 562 and the installation groove 6 and prevent groundwater from leaking.
[0049] The working principle of the present invention is as follows: during installation, through observation and evaluation on the raft 1, first find the position of the raft 1 with a higher groundwater level and a lower terrain, and select a deeper sump in the area; use a water drill to drill a hole in the sump selected on the raft 1 to form a through hole 2, and the through hole 2 penetrates the raft 1; after the through hole 2 is completed, clean the inside of the through hole 2, and fill the through hole 2 with pebbles 3, and the filling height of the pebbles 3 is consistent with the height of the through hole 2; install the pressure relief device 5 at the upper end of the through hole 2 opened on the upper surface of the raft 1 through the fixing bolt 4, and install the sealing ring 10 at the contact surface position of the through hole 2 and the pressure relief device 5 before fixing. After the pressure relief device 5 is installed, when the water level is high, open the sealing disk 55 on the second flange 54 to relieve the pressure of the groundwater, and the groundwater is connected to one end of the second flange 54 through a water pump to extract and discharge the groundwater. In the dry season, close the sealing disk 55 on the second flange 54, which can effectively relieve the pressure of the groundwater level.
[0050] After being discharged from the pressure relief device 5 , the groundwater is filtered through the pebbles 3 and the filter plate 561 in the pressure relief device 5 , so that the impurities in the groundwater are located at the bottom of the filter plate 561 and block the filter holes on the filter plate 561 .
[0051] During processing, the rotating cap 568 is manually rotated to rotate on the fixed plate 567, and the rotating cap 568 drives the linkage plate 566 to move vertically relatively through the threaded rod 569, and the linkage plate 566 drives the clamping plate 565 to move out of the clamping slot 7. Subsequently, the filter plate 561 is pulled horizontally toward the outside of the installation slot 6, the filter plate 561 is taken out, and the impurities blocked on the bottom surface are cleaned.
[0052] After cleaning, the filter plate 561 is pushed back into the pressure relief pipe 51 through the installation slot 6, and the filter plate 561 drives the plug block 9 to be clamped into the slot 8. Then, the rotating cap 568 is rotated in the opposite direction, and the rotating cap 568 drives the linkage plate 566 to move vertically in the opposite direction through the threaded rod 569, and the linkage plate 566 drives the clamping plate 565 to move vertically in the opposite direction and insert into the clamping slot 7, thereby sealing the filter plate 561, thereby facilitating the cleaning of blocked impurities, ensuring the drainage efficiency, and improving the drainage stability.
[0053] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A raft dewatering and decompression method, characterized in that: include: S1. Through observation and evaluation on the raft (1), first find the location of the raft (1) where the groundwater level is higher and the terrain is lower, and select a deeper sump in the area; S2, using a water drill to drill a hole in the selected sump of the raft (1) to form a through hole (2), and the through hole (2) penetrates the raft (1); S3, after the through hole (2) is completed, the inside of the through hole (2) is cleaned, and pebbles (3) are used to fill the through hole (2), and the filling height of the pebbles (3) is consistent with the height of the through hole (2); S4. The pressure relief device (5) is installed at the upper end of the through hole (2) opened on the upper surface of the raft plate (1) through the fixing bolt (4), so as to reduce the pressure and discharge the accumulated water under the raft plate (1).
2. A raft dewatering and decompression method according to claim 1, characterized in that: The pressure relief device (5) in S4 comprises a pressure relief pipe (51), the lower end of the pressure relief pipe (51) is fixedly connected to a first flange (52), the upper end of the pressure relief pipe (51) is fixedly connected to a pressure relief elbow (53), one end of the pressure relief elbow (53) is connected to a second flange (54), a sealing disk (55) is provided on one side of the second flange (54), and a filter assembly (56) for filtering accumulated water is slidably provided inside the pressure relief pipe (51).
3. A raft dewatering and decompression method according to claim 2, characterized in that: The filter assembly (56) comprises a filter plate (561), a fixed plate (562) is fixedly provided on one side of the filter plate (561), a group of slide grooves (563) are opened on the fixed plate (562), a slider (564) is slidably provided inside the slide groove (563), a clamping plate (565) is fixedly provided at one end of the slider (564), and a linkage plate (566) is fixedly provided on the outer wall of the clamping plate (565), a fixed plate (567) is fixedly provided on the outer side of the fixed plate (562), a rotating cap (568) is rotatably provided on the fixed plate (567), a threaded rod (569) is fixedly provided on the rotating cap (568), and the threaded rod (569) is threadedly sleeved with the linkage plate (566).
4. A raft dewatering and decompression method according to claim 2, characterized in that: The outer wall of the pressure relief pipe (51) is provided with a mounting groove (6), and the upper and lower inner walls of the mounting groove (6) are provided with clamping grooves (7).
5. A raft dewatering and decompression method according to claim 3, characterized in that: The inner wall of the pressure relief pipe (51) is provided with a slot (8), and an insert block (9) is fixedly provided on one side of the filter plate (561).
6. A raft dewatering and decompression method according to claim 4, characterized in that: A sealing ring (10) is provided at the connection between the installation groove (6) and the through hole (2).
7. A raft dewatering and decompression method according to claim 3, characterized in that: Limiting blocks (11) are fixedly disposed at both ends of the threaded rod (569).
8. A raft dewatering and decompression method according to claim 3, characterized in that: A sealing rubber ring (12) is provided at the clamping point between the fixing plate (562) and the mounting groove (6).