Cooling underground seepage water recycling device for ultra-large and ultra-thick concrete foundation
By setting up a recycling device for collecting pits and cooling pipelines under the concrete foundation, the pressure problem of groundwater seepage on concrete is solved, continuous extraction and cooling is achieved, leakage and cracks are prevented, and construction efficiency and concrete quality are improved.
Patent Information
- Application Number
- CN202421129532.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-22
AI Technical Summary
During the construction of an ultra-large and super-thick concrete foundation, groundwater seepage leads to unsolidified concrete pressure, which easily forms 'water joints', which in turn causes foundation leakage. Traditional methods cannot continuously pump groundwater during concrete pouring, especially in clay or weathered rock There are difficulties in soil-like quality.
Design a recycling device including a water collecting puddle, a steel cage, a water inlet pipe, a water outlet pipe, a cooling pipe and a water suction pump. It is connected to the cooling pipe in the concrete foundation through the cooling pipe, and uses the water suction pump to form a negative pressure effect and continuously pump groundwater , and recycle the cooling water back to the inside of the concrete for cooling.
It realizes continuous extraction of groundwater during concrete pouring to prevent the formation of "water joints", reduce the internal temperature of concrete, improve construction efficiency and concrete quality, and save water resources.
Smart Images
Figure CN222314649U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete foundation construction, in particular to a device for cooling and recycling underground seepage water for an ultra-large and ultra-thick concrete foundation. Background Art
[0002] During the construction of extra-large and extra-thick concrete foundations, there is often groundwater or pressurized water under the foundation, which causes groundwater to continuously seep out of the foundation. The traditional method is to pump out groundwater through a sump and a drainage pump before pouring concrete. However, when pouring concrete, the pump usually needs to stop working. At this time, the groundwater seepage will exert pressure on the unsolidified concrete, which may easily lead to the formation of "water cracks" inside the concrete, which may cause foundation leakage in the later stage. For clay or weathered rock foundation soils, the existing method generally adopts the method of placing a pump in the sump. When pouring concrete, the pump stops working and cannot continue to pump water. At this time, the groundwater seepage has a certain pressure, which may easily lead to "water cracks" in the unsolidified concrete, which may easily lead to leakage in the foundation in the later stage; the sump is a closed space when pouring concrete. If the amount of groundwater seepage is not large, continuous outward pumping will be affected by negative pressure and difficult to pump out. Utility Model Content
[0003] In order to solve the above technical problems, the utility model aims to provide a device for cooling and recycling underground seepage water in an extra-large and extra-thick concrete foundation. By arranging cooling pipes and a water collection system in the foundation, the recycling of underground seepage water is realized, which not only meets the demand for continuous pumping and drainage of groundwater during concrete pouring, but also can utilize the pumping and drainage to cool and maintain the concrete.
[0004] The utility model is realized by the following technical solutions:
[0005] An ultra-large and ultra-thick concrete foundation cooling underground seepage water recycling device, comprising:
[0006] Sump pits, which are located below the concrete foundation at the point of the seepage;
[0007] A steel cage fixedly disposed in the sump;
[0008] A water inlet pipe, the water inlet of which is connected to the cooling pipe in the concrete foundation, and the water outlet of the water inlet pipe is arranged inside the steel cage;
[0009] A water outlet pipe, the water inlet of which is arranged inside the steel cage, and the water outlet of the water outlet pipe is connected to the cooling pipe in the concrete foundation;
[0010] A water reservoir, which is connected to the water inlet pipe through a cooling pipe;
[0011] A water suction pump connected to the water outlet pipe through a cooling pipe;
[0012] The water reservoir, the cooling pipe, the water inlet pipe, the steel cage, the water outlet pipe, the cooling pipe, and the water suction pump are connected in sequence to form a connecting waterway.
[0013] Optionally, the steel cage is a pebble cage, and the outer side of the steel cage is wrapped with a permeable geotextile.
[0014] Specifically, a steel plate is provided at the upper opening of the sump, the water outlet pipe and the water inlet pipe both pass through the steel plate, and the water inlet pipe and the water outlet pipe are both welded to the steel plate.
[0015] Specifically, a waterproof layer is provided between the steel plate and the concrete foundation.
[0016] Optionally, the internal net space of the sump is not less than 50 cm×50 cm×50 cm, and the height of the water outlet of the water inlet pipe is higher than the height of the water inlet of the water outlet pipe.
[0017] Specifically, a float valve is arranged in the water reservoir. The water capacity of the water reservoir is not less than the sum of the water capacities of the sump, the water inlet pipe, the water outlet pipe and the cooling pipe.
[0018] Optionally, the diameter of the water inlet pipe and the diameter of the water outlet pipe are both smaller than the diameter of the cooling pipe.
[0019] Optionally, the discharged water from the water outlet of the water suction pump flows back to the water reservoir.
[0020] Optionally, the discharged water from the water outlet of the water suction pump is discharged to the surface of the concrete foundation.
[0021] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0022] The utility model sets a sump at the leakage point below the concrete foundation, and sets a water inlet pipe and a water outlet pipe in the sump through a steel cage, the water inlet pipe is connected to the cooling pipe in the concrete foundation to introduce cooling water into the steel cage; the water outlet pipe discharges the water in the steel cage and circulates it back to the cooling pipe in the concrete foundation, the sump, the cooling pipe, the water inlet pipe, the water outlet pipe and the water reservoir are connected in sequence through a water suction pump to form a circulating water circuit, thereby ensuring continuous drainage during the concrete pouring process, and utilizing the drainage for cooling and maintenance.
[0023] The utility model effectively solves the problem of underground water seepage under the concrete foundation. The seepage water is collected and recycled through the water collection pit, ensuring continuous drainage during the concrete pouring process to prevent the groundwater pressure from causing "water cracks" in the concrete. The negative pressure effect formed by the water suction pump is used to maintain the water level balance in the water collection pit to ensure drainage efficiency. At the same time, the groundwater is introduced into the concrete through the cooling pipe to cool it down, effectively reducing the temperature inside the concrete and preventing cracks caused by excessive temperature differences. The water cooled inside the concrete is used for surface maintenance, saving water resources and further improving construction efficiency and concrete quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, are used to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention, and the accompanying drawings are included in and constitute a part of this specification and do not constitute a limitation on the embodiments of the present invention.
[0025] Figure 1 It is a structural schematic diagram of a super-large and super-thick concrete foundation cooling and underground seepage water recycling device according to the utility model.
[0026] Figure 2 It is a schematic diagram of a sump of an underground seepage water recycling device for cooling an extra-large and extra-thick concrete foundation according to the utility model.
[0027] Figure numerals: 1-concrete foundation, 2-sump, 3-water inlet pipe, 4-water outlet pipe, 5-cooling pipe, 6-water reservoir, 7-water suction pump, 8-steel plate, 9-float valve. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and implementation methods. It is understood that the specific implementation methods described here are only used to explain the relevant content, rather than to limit the utility model.
[0029] It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings.
[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0031] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0032] In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0033] like Figure 1 and Figure 2 As shown, a device for cooling underground seepage water and recycling it with an extra-large and extra-thick concrete foundation 1 includes: a sump 2, a steel cage, a water inlet pipe 3, a water outlet pipe 4, a water reservoir 6 and a water suction pump 7.
[0034] The sump 2 is located at the leakage point below the concrete foundation 1 and is used to collect groundwater seeping from below the foundation; the steel cage is fixedly arranged in the sump 2 and is used to strengthen the structure of the sump 2.
[0035] The water inlet of the water inlet pipe 3 is connected to the cooling pipe 5 in the concrete foundation 1, and the water outlet of the water inlet pipe 3 is arranged inside the steel cage; the water inlet of the water outlet pipe 4 is arranged inside the steel cage, and the water outlet of the water outlet pipe 4 is connected to the cooling pipe 5 in the concrete foundation 1.
[0036] The water reservoir 6 is connected to the water inlet pipe 3 through the cooling pipe 5; the water suction pump 7 is connected to the water outlet pipe 4 through the cooling pipe 5, and the water reservoir 6, cooling pipe 5, water inlet pipe 3, steel cage, water outlet pipe 4, cooling pipe 5, and water suction pump 7 are connected in sequence to form a connecting waterway.
[0037] The sump 2 collects groundwater at the leakage point below the concrete foundation 1. The suction pump 7 pumps the leakage water in the sump 2 through the outlet pipe 4 and enters the cooling pipe 5. The suction pump 7 pumps water continuously, so that the water flows in the cooling pipe 5 in the large volume of concrete, thereby reducing the internal temperature of the concrete.
[0038] Under the action of the suction pump 7, when the sump 2 is pumped, if the underground water seepage amount is less than the water absorption amount, negative pressure will be generated in the sump 2. At this time, the water reservoir 6 is connected through the water inlet pipe 3, and the water in the water reservoir 6 can be automatically replenished into the sump 2 to make up for the shortage of underground water seepage.
[0039] There are two ways to process the discharged water of the suction pump 7. One is that the discharged water from the outlet of the suction pump 7 flows back to the water reservoir 6. The discharged water flows back to the water reservoir 6 and serves the purpose of saving water resources.
[0040] Secondly, the discharged water from the outlet of the water suction pump 7 is discharged to the surface of the concrete foundation 1. The reason is that the heated water can be used for the maintenance of the concrete surface, adjusting the temperature difference between the inside and outside of the concrete, and preventing cracks caused by excessive temperature difference.
[0041] The steel cage is a pebble cage, and the outer side of the steel cage is wrapped with a permeable geotextile. The permeable geotextile wrapped on the outer side of the sump 2 can prevent fine sand and mud from entering the sump 2, thereby ensuring the purity and fluidity of the water.
[0042] A steel plate 8 is provided at the upper opening of the sump 2, through which both the outlet pipe 4 and the inlet pipe 3 pass, and both the inlet pipe 3 and the outlet pipe 4 are welded to the steel plate 8. A waterproof layer is provided between the steel plate 8 and the concrete foundation 1. The steel plate 8 can ensure the fixation of the outlet pipe 4 and the inlet pipe 3, while preventing the concrete foundation 1 from entering the sump 2 during pouring. The waterproof layer prevents water in the sump 2 from penetrating into the concrete foundation 1, and maintains the integrity and waterproofness of the concrete structure.
[0043] The internal net space of the sump 2 is not less than 50cm×50cm×50cm, providing enough space to collect leaking water and prevent the sump 2 from drying up quickly. The height of the water outlet of the water inlet pipe 3 is higher than the height of the water inlet of the water outlet pipe 4. The gravity flow of water is used to make the water inlet smoother, effectively improving the circulation efficiency of the cooling water.
[0044] A float valve 9 is provided in the water reservoir 6. The water capacity of the water reservoir 6 is not less than the sum of the water capacities of the sump 2, the water inlet pipe 3, the water outlet pipe 4 and the cooling pipe. A float valve 9 is provided in the water reservoir 6 for automatically adjusting the water level. The float valve 9 is a device that controls the valve switch by the position of the float. When the water level drops, the float valve 9 opens to allow supplementary water to enter the water reservoir 6; when the water level reaches a predetermined height, the float valve 9 closes to stop the water inlet. This design ensures that the water level in the water reservoir 6 is always at an appropriate level to ensure the normal operation of the system.
[0045] The water capacity of the water reservoir 6 should be designed to be no less than the sum of the water capacities of the sump 2, the water inlet pipe 3, the water outlet pipe 4 and the cooling pipe 5, thereby ensuring that during the operation of the circulation system, the water reservoir 6 can store sufficient water to meet the needs of each component and avoid system interruption or reduced efficiency due to insufficient water.
[0046] The diameter of the water inlet pipe 3 and the diameter of the water outlet pipe 4 are both smaller than the diameter of the cooling pipe 5 (generally DN50). The smaller diameter of the water inlet pipe 3 and the water outlet pipe 4 can increase the water flow speed and enhance the water circulation effect, and the smaller diameter of the pipe helps to increase the water pressure in the pipe, which is conducive to overcoming the resistance in the pipe and ensuring the smoothness and continuity of the water flow. The larger diameter of the cooling pipe 5 can accommodate more water, increase the contact area between water and concrete, and improve the cooling efficiency.
[0047] The construction process of this device is as follows: Provide a specific implementation case: The "commercial, office and supporting facilities, bus centralized stop project" invested and developed by a certain industrial company in Chengdu and constructed by a certain engineering company in Sichuan Province. The 1# building of this project is a super high-rise building with a maximum raft thickness of 2.6m. The bearing layer below the foundation is a hard clay layer and a weathered rock layer. The water level of this project is about 2m below the foundation. Some of the excavations in the water collection wells and elevator shafts are deep and there is weathered fissure water seeping upward. In order to ensure continuous drainage of seepage during the pouring of large-volume raft concrete, a cooling pipe 5 is installed inside to cool the large-volume concrete of the raft. The raft area is large and the surface of the raft needs to be maintained, which consumes a lot of water. The project studies this utility model to meet the above requirements.
[0048] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.
[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0050] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above utility model, and these changes or modifications are still within the scope of the present utility model.
Claims
1. A device for cooling underground seepage water for super-large and super-thick concrete foundation, characterized in that: include: A sump (2) located at the leakage point below the concrete foundation (1); A steel cage fixedly arranged in the sump (2); A water inlet pipe (3), the water inlet of which is connected to a cooling pipe (5) in the concrete foundation (1), and the water outlet of the water inlet pipe (3) is arranged inside the steel cage; A water outlet pipe (4), the water inlet of which is arranged inside the steel cage, and the water outlet of the water outlet pipe (4) is connected to a cooling pipe (5) inside the concrete foundation (1); A water reservoir (6) connected to the water inlet pipe (3) via a cooling pipe (5); A water suction pump (7) connected to the water outlet pipe (4) through the cooling pipe (5); The water reservoir (6), the cooling pipe (5), the water inlet pipe (3), the steel cage, the water outlet pipe (4), the cooling pipe (5), and the water suction pump (7) are sequentially connected to form a connecting water path.
2. The device for cooling underground seepage water for super-large and super-thick concrete foundation according to claim 1 is characterized in that: The steel cage is a pebble cage, and the outer side of the steel cage is wrapped with a permeable geotextile.
3. The device for cooling underground seepage water for super-large and super-thick concrete foundation according to claim 1 is characterized in that: A steel plate (8) is provided at the upper opening of the sump (2), the water outlet pipe (4) and the water inlet pipe (3) both pass through the steel plate (8), and the water inlet pipe (3) and the water outlet pipe (4) are both welded to the steel plate (8).
4. The device for cooling underground seepage water for super-large and super-thick concrete foundation according to claim 3 is characterized in that: A waterproof layer is provided between the steel plate (8) and the concrete foundation (1).
5. The device for cooling underground seepage water for super-large and super-thick concrete foundation according to claim 1 is characterized in that: The internal net space of the sump (2) is not less than 50 cm×50 cm×50 cm, and the height of the water outlet of the water inlet pipe (3) is higher than the height of the water inlet of the water outlet pipe (4).
6. The device for cooling underground seepage water for super-large and super-thick concrete foundation according to claim 1 is characterized in that: A float valve (9) is arranged in the water reservoir (6).
7. The device for cooling underground seepage water for super-large and super-thick concrete foundation according to claim 1 is characterized in that: The water capacity of the water reservoir (6) is not less than the sum of the water capacities of the sump (2), the water inlet pipe (3), the water outlet pipe (4) and the cooling pipe.
8. The device for cooling underground seepage water for super-large and super-thick concrete foundation according to claim 1 is characterized in that: The diameter of the water inlet pipe (3) and the diameter of the water outlet pipe (4) are both smaller than the diameter of the cooling pipe (5).
9. The device for cooling underground seepage water for super-large and super-thick concrete foundation according to claim 1 is characterized in that: The discharged water from the water outlet of the water suction pump (7) flows back to the water reservoir (6).
10. The device for cooling underground seepage water for super-large and super-thick concrete foundation according to claim 1, characterized in that: The discharged water from the water outlet of the water suction pump (7) is discharged to the surface of the concrete foundation (1).