Raft foundation mass concrete skip construction temperature regulation device

Abstract

The application relates to the technical field of concrete construction, and particularly discloses a temperature regulation device for raft foundation mass concrete skip construction, which comprises a positioning plate, a heat preservation piece and a temperature control piece, the positioning plate is fixedly connected to the side wall of the concrete to be maintained, the top end of the positioning plate exceeds the top end of the concrete to be maintained, the top end of the positioning plate is slidably connected to the heat preservation piece, the heat preservation piece is covered on the concrete to be maintained and forms a temperature control gap between the heat preservation piece and the concrete to be maintained, the heat preservation piece can delay the loss of concrete heat, the temperature control piece is connected to the heat preservation piece, and the temperature control piece can sense and increase the temperature in the temperature control gap. The application has the effect of reducing the probability of concrete cracking caused by too fast temperature change in the concrete maintenance process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete construction, and in particular to a temperature regulating device for raft foundation mass concrete skip bay construction. BACKGROUND

[0002] In concrete construction, the skip bay method is to use the "anti and release" characteristics of concrete before it is completely solidified, which is to divide the building foundation or large area concrete plane into several regions, and to construct according to the principle of "block planning, block construction, layer pouring, and whole forming", pouring one section after another.

[0003] The skip bay method has a significant effect on reducing cracks in super-long, super-thick, and super-thin mass concrete. The length of the bottom plate should not be greater than 40m, and the length of the side wall and the top plate should not be greater than 16m. The time interval between skip bays should not be less than 7 days, and the joint between skip bays should be set and treated according to the requirements of the construction joint.

[0004] In concrete construction, surface leveling of concrete requires maintenance of the concrete to ensure that the strength of the concrete reaches the required strength. If the temperature changes too much during the concrete maintenance process, it will cause the concrete to crack, thereby affecting the safe use of the building. SUMMARY

[0005] In order to reduce the probability of concrete cracking caused by rapid temperature changes during concrete maintenance, the present application provides a temperature regulating device for raft foundation mass concrete skip bay construction.

[0006] The temperature regulating device for raft foundation mass concrete skip bay construction provided by the present application adopts the following technical solution:

[0007] A temperature regulating device for raft foundation mass concrete skip bay construction, comprising:

[0008] A positioning plate fixedly connected to the side wall of the concrete to be maintained, the top end of the positioning plate exceeding the top end of the concrete to be maintained;

[0009] A heat preservation member slidingly connected to the top end of the positioning plate, the heat preservation member covering the concrete to be maintained and forming a temperature control gap between the heat preservation member and the concrete to be maintained, the heat preservation member being capable of delaying the loss of heat from the concrete;

[0010] A temperature control member connected to the heat preservation member, the temperature control member being capable of sensing and controlling the temperature in the temperature control gap.

[0011] By adopting the technical scheme, after the concrete construction is completed, the positioning plate is placed on the side wall of the concrete to be condensed and fixed on the ground, then the heat preservation piece is placed on the opposite two positioning plates, the heat preservation piece is slidably connected with the top end of the positioning plate, the heat preservation piece covers the surface of the concrete to be maintained, thereby reducing the air circulation of the surface of the concrete to be maintained, and the heat loss speed of the surface of the concrete to be maintained is slowed down through the heat preservation piece, the temperature in the temperature control gap is sensed and regulated by the temperature control piece arranged in the temperature control gap, thereby controlling the temperature drop speed of the concrete to be maintained, and the cooling speed of the concrete is cooled at a reasonable cooling speed, and the probability of concrete cracking caused by too fast temperature change in the concrete maintenance process is reduced.

[0012] Optionally, the heat preservation piece comprises a heat preservation film and a plurality of support rods, the plurality of support rods are slidably connected with the top end of the positioning plate on the side of the concrete to be maintained, and the heat preservation film is arranged on the side of the support rods away from the concrete to be maintained.

[0013] By adopting the technical scheme, the support rod is slidably connected with the positioning plate, and the heat preservation film is supported, so that the heat preservation film can be covered above the concrete to be maintained when the support rod is slid from one end of the positioning plate to the other end.

[0014] Optionally, one end of the heat preservation film is fixedly connected with the support rod, and the other end of the heat preservation film is connected with a winding device.

[0015] By adopting the technical scheme, one end of the heat preservation film is connected with the winding device, so that when the support rod is not slid from one end of the positioning plate to the other end, the heat preservation film connected with the support rod will not fall on the concrete to be maintained, thereby reducing the probability that the surface shape of the concrete is changed or the heat preservation film is damaged by the concrete when the heat preservation film abuts against the concrete to be maintained.

[0016] Optionally, the winding device comprises a winding rod and a winding motor, the heat preservation film is fixedly connected with the winding rod, the winding motor is provided with two and located at two ends of the winding rod, and the two ends of the winding rod are coaxially connected with output shafts of the winding motor.

[0017] By adopting the technical scheme, one end of the heat preservation film is fixedly connected with the winding rod, so that the winding motor can realize the effect of winding or unwinding the heat preservation film by rotating the winding rod.

[0018] Optionally, the temperature control component includes a temperature sensor and a pressure valve. The temperature sensor is fixedly connected to the support rod, and a water passage hole is provided inside the support rod. The pressure valve is disposed on the support rod and connected to the water passage hole. The side of the pressure valve away from the support rod faces the temperature control gap. An atomizing cover is connected to the end of the pressure valve away from the support rod. The temperature sensor can control the opening and closing of the pressure valve.

[0019] By adopting the above technical solution, water is introduced into the support rod to affect the temperature within the temperature control gap. The temperature sensor detects the temperature within the temperature control gap. When the temperature within the temperature control gap is too high, the pressure valve is opened to allow the water in the support rod to be atomized and sprayed out from the atomizing cover. This rapidly absorbs the heat within the temperature control gap, reducing the temperature within the gap, and thus lowering the temperature of the concrete to be cured through the heat transfer effect.

[0020] Optionally, a heater is provided at a distance from one end of the support rod. The heater is used to raise the temperature of the water flowing into the support rod, and the temperature sensor can control the start and stop of the heater.

[0021] By adopting the above technical solution, when the temperature sensor detects that the temperature in the temperature control gap is about to drop too quickly, the temperature sensor controls the heater to heat up, causing the water temperature in the support rod to rise. When the water in the support rod flows through the temperature control gap, the water in the support rod can transfer heat to the temperature control gap, increasing the temperature in the temperature control gap, thereby slowing down the cooling rate of the concrete and reducing the probability of the concrete cracking due to a rapid drop in temperature.

[0022] Optionally, one end of the support rod is connected to a first water pipe, and the other end of the support rod is connected to a second water pipe. The ends of the first and second water pipes opposite to the support rod are interconnected. The heater is connected to the outer wall of the first and / or second water pipes. A circulation pump is installed inside the first and / or second water pipes to promote the flow of water inside the support rod.

[0023] By adopting the above technical solution, the first water pipe and the second water pipe are connected, and a circulating pump is used to promote the circulation of water in the support rod. This reduces the difference in water temperature in different parts of the support rod, which affects the different cooling rates of different parts of the concrete and reduces the probability of concrete cracking.

[0024] Optionally, the first water pipe and / or the second water pipe are connected to a water inlet pipe, and the side wall of the positioning plate is provided with several drainage holes.

[0025] By adopting the above technical solution, water can be supplied to the first or second water pipe in a timely manner to replenish the water circulating inside the support rod, thereby reducing the probability of water loss from the support rod and thus failing to regulate the temperature within the temperature control gap. The drainage hole can reduce the probability of the concrete surface to be covered by water, affecting the concrete curing process.

[0026] Optionally, the top of the positioning plate is provided with a sliding groove, and a protective shell is provided over the sliding groove. The protective shell is detachably connected to the positioning plate.

[0027] By adopting the above technical solution, a protective shell is installed on the outside of the chute to prevent external debris from entering the chute before the insulation is installed, thus preventing it from affecting the fit between the chute and the insulation. The protective shell is removed when the insulation is installed on the positioning plate, thereby enabling the installation of the insulation.

[0028] Optionally, the material of the heat-insulating film is an opaque soft film.

[0029] By adopting the above technical solution, the insulation film is opaque, which reduces the impact of sunlight on the concrete to be cured during the curing process. The soft film makes it easy to roll up the insulation film, thereby facilitating the storage and transportation of the temperature control device.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. When curing concrete, a positioning plate is placed on the side wall of the concrete to be cured, and an insulation component is slidably connected to the top of the positioning plate. The insulation component covers the concrete to be cured, and the temperature within the temperature control gap is controlled by the temperature control component, thereby controlling the temperature of the concrete. This achieves the control of the concrete temperature drop rate and reduces the probability of concrete cracking caused by excessive temperature changes during the curing process.

[0032] 2. The insulation components are set up as insulation film and support rod. The insulation film is controlled by a retractor so that it can unfold with the sliding of the support rod, thereby reducing the probability of the insulation film coming into contact with the concrete to be cured, and reducing the probability of the insulation film being torn by the concrete or affecting the concrete setting during the process of covering the concrete to be cured.

[0033] 3. The temperature sensor monitors the temperature within the temperature control gap. When the temperature drops too quickly, the sensor activates the heater, raising the temperature of the water in the support rod and thus increasing the overall temperature within the gap. Conversely, when the temperature rises too quickly, the sensor opens the pressure valve, causing water to spray from the atomizing cover and lower the temperature within the gap. This ultimately controls the rate of temperature change in the concrete. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0035] Figure 2 This is a schematic diagram of the internal structure of an embodiment of this application.

[0036] Figure 3 This is a schematic diagram of the positioning plate structure according to an embodiment of this application.

[0037] Figure 4 This is a cross-sectional view of the internal structure of the retractor according to an embodiment of this application.

[0038] Figure 5 This is a schematic diagram of the internal structure installation of an embodiment of this application.

[0039] In the diagram: 1. Positioning plate; 11. Drain hole; 12. Slide groove; 2. Insulation component; 21. Insulation film; 22. Support rod; 221. Water passage hole; 3. Temperature control gap; 4. Temperature control component; 41. Temperature sensor; 42. Pressure valve; 43. Atomizing cover; 5. Retractor; 51. Retractor rod; 52. Retractor motor; 6. Heater; 7. First water pipe; 8. Second water pipe; 9. Circulation pump; 10. Water inlet pipe; 101. Protective shell. Detailed Implementation

[0040] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0041] This application discloses a temperature control device for the skip-concrete construction of large-volume concrete slabs for raft foundations. (Refer to...) Figure 1 and Figure 2 The temperature control device for the construction of large-volume concrete slab foundation includes a positioning plate 1, an insulation component 2, and a temperature control component 4. The positioning plate 1 is fixedly connected to the side wall of the concrete to be cured, with its bottom end located on the ground and its top end located above the concrete to be cured. The top end of the positioning plate 1 is slidably connected to the insulation component 2, which covers the concrete to be cured. A temperature control gap 3 is formed between the bottom end of the insulation component 2 and the top end of the concrete to be cured. The insulation component 2 is used to slow down the rate of heat loss from the concrete. The temperature control component 4 is located within the temperature control gap 3 and is fixedly connected to the insulation component 2. The temperature control component 4 can sense and control the temperature within the temperature control gap 3.

[0042] When curing concrete after pouring, the insulation component 2 is connected to the positioning plate 1, allowing the insulation component 2 to slide and cover the concrete to be cured, thus forming a temperature control gap 3 above the concrete. While slowing down the heat dissipation rate of the concrete to be cured, the temperature control component 4 is placed inside the temperature control gap 3. The temperature control component 4 senses the temperature inside the temperature control gap 3. When the temperature inside the temperature control gap 3 is the temperature of the concrete to be cured, the temperature of the concrete to be cured can be controlled by the temperature control component 4 through the heat transfer effect. This enables the control of the cooling rate of the concrete to be cured, reducing the probability of concrete cracking due to excessively rapid temperature changes during the curing process.

[0043] Reference Figure 2 and Figure 3 The top of the positioning plate 1 is provided with a sliding groove 12, which is located above the concrete to be cured. The sliding groove 12 is covered with a protective shell 101, which is detachably connected to the positioning plate 1.

[0044] When the positioning plate 1 is fixed on both sides of the concrete to be cured, the protective cover is fitted over the top of the positioning plate 1 to protect the groove 12 at the top of the positioning plate 1, reducing the probability that cement or sand and other debris will adhere to the groove 12 and affect its function. After the positioning plate 1 is installed, when the insulation component 2 is to be installed, the protective cover is removed from the top of the positioning plate 1, and then the insulation component 2 is slidably connected to the groove 12 of the positioning plate 1, so that the insulation component 2 slides along the positioning plate 1, thereby covering the concrete to be cured.

[0045] Reference Figure 1 and Figure 2 The insulation component 2 includes an insulation film 21 and several support rods 22. The support rods 22 are arranged at intervals. The side of the support rod 22 facing the concrete to be cured is slidably connected to the groove 12 at the top of the positioning plate 1. The support rod 22 at the frontmost point in the sliding direction of the support rod 22 is fixedly connected to the insulation film 21. The insulation film 21 covers the side of the support rod 22 away from the concrete to be cured. The insulation film 21 is made of an opaque soft film. The opacity of the insulation film 21 can reduce the interference of sunlight on the concrete to be cured during the curing process. Making the insulation film 21 a soft film can facilitate the storage and transportation of the insulation film 21 and reduce the probability of the insulation film 21 being damaged during storage and transportation.

[0046] When the insulation component 2 is placed on the concrete to be cured, the support rod 22 connecting the insulation film 21 first slides into the groove 12 at the top of the positioning plate 1. The support rod 22 drives the insulation film 21 to slide on the surface of the concrete to be cured, so that the insulation film 21 covers the concrete to be cured under the action of the support rod 22. When the support rod 22 slides from one end of the positioning plate 1 to the other end of the positioning plate 1, the insulation film 21 can completely cover the concrete to be cured, thus completing the installation of the insulation component 2.

[0047] Reference Figure 2 and Figure 4 The end of the insulation film 21 facing away from the sliding direction of the support rod 22 is connected to a retractor 5. The retractor 5 includes a retractor 51 and a retractor motor 52. The end of the insulation film 21 facing away from the sliding direction of the support rod 22 is fixedly connected to the retractor 51. Two retractor motors 52 are coaxially connected to both ends of the retractor 51. The retractor motors 52 at both ends of the retractor 51 rotate simultaneously in the same direction.

[0048] When the insulation component 2 is stored, the winding motor 52 drives the winding rod 51 to rotate, thereby winding the insulation film 21 together through the winding rod, thus storing the insulation film 21. This reduces the probability that the insulation film 21 will fall onto the concrete to be cured and come into contact with the concrete when the support rod 22 is retracted, thereby reducing the probability of wear on the insulation film 21.

[0049] Reference Figure 2 and Figure 5 The support rod 22 has a water passage hole 221 along its length. One end of the support rod 22 is connected to a first water passage pipe 7 that communicates with the water passage hole 221, and the other end of the support rod 22 is connected to a second water passage pipe 8 that communicates with the water passage hole 221. The ends of the first water passage pipe 7 and the second water passage pipe 8 that are away from the support rod 22 are connected to each other. The first water passage pipe 7 is connected to a water inlet pipe 10, and the water inlet pipe 10 can also be directly connected to the second water passage pipe 8. The water inlet pipe 10 is used to replenish water to the first water passage pipe 7 and the second water passage pipe 8. The first water passage pipe 7 is equipped with a circulation pump 9, and the circulation pump 9 can also be installed on the second water passage pipe 8. The circulation pump 9 is used to promote the flow of water in the support rod 22.

[0050] By opening a water passage hole 221 inside the support rod 22, the temperature of the support rod 22 can be controlled by adjusting the water temperature inside the water passage hole 221. The support rod 22 is located within the temperature control gap 3. Due to the heat transfer effect, the heat of the support rod 22 can be dissipated into the temperature control gap 3, thus affecting the temperature within the temperature control gap 3 and ultimately the temperature of the concrete to be cured. By connecting the two ends of the support rod 22 to the first water pipe 7 and the second water pipe 8, and using a circulation pump 9 to circulate the water inside the support rod 22, the probability of the water inside the support rod 22 failing to regulate the temperature due to stagnation is reduced.

[0051] Reference Figure 2 and Figure 5The temperature control component 4 includes a temperature sensor 41 and a pressure valve 42. The temperature sensor 41 is located within the temperature control gap 3 and is fixedly connected to the outer wall of the support rod 22. The pressure valve 42 is connected to the support rod 22 and communicates with the water passage 221. The side of the pressure valve 42 facing away from the support rod 22 is located within the temperature control gap 3. An atomizing cover 43 is connected to the end of the pressure valve 42 facing away from the support rod 22. The atomizing cover 43 can atomize and spray water from the support rod 22 into the temperature control gap 3. The temperature sensor 41 can control the opening and closing of the pressure valve 42.

[0052] When the temperature sensor 41 detects that the temperature change in the temperature control gap 3 is too rapid, the temperature detector controls the pressure valve 42 to open, so that the water in the support rod 22 is sprayed into the temperature control gap 3, thereby regulating the temperature in the temperature control gap 3 and slowing down the rate of temperature change in the temperature control gap 3. Through the heat transfer effect, the rate of temperature change of the concrete to be cured is slowed down, thereby achieving the regulation of the temperature change of the concrete.

[0053] Reference Figure 1 and Figure 2 The side wall of the positioning plate 1 is provided with several drainage holes 11. The atomizing cover 43 can be sprayed out through the drainage holes 11, thereby draining the water that has accumulated on the surface of the concrete to be cured and reducing the impact on the concrete to be cured.

[0054] Reference Figure 2 and Figure 5 The first water pipe 7 is connected to a heater 6, which contains a resistance wire electrically connected to a temperature sensor 41. The temperature sensor 41 controls whether the resistance wire is energized. When the temperature sensor 41 detects that the temperature in the temperature control gap 3 is dropping too quickly, it controls the resistance wire to be energized. The resistance wire generates heat, thereby increasing the water temperature in the support rod 22. The temperature sensor 41 then controls the pressure valve 42 to open, spraying the heated water into the temperature control gap 3, thus increasing the temperature in the temperature control gap 3 and slowing down the rate of temperature drop in the concrete to be cured.

[0055] The implementation principle of the temperature control device for the skip-pour construction of large-volume concrete in the raft foundation of this application embodiment is as follows: During cooling after concrete construction, the positioning plate 1 is fixed to the side wall of the concrete to be cured, and the protective cover at the top of the positioning plate 1 is removed. This allows the support rod 22 to slide along the layout direction of the positioning plate 1, thereby covering the concrete to be cured with the insulation film 21. This creates a temperature-controlled gap 3 between the insulation film 21 and the concrete to be cured, delaying temperature changes in the concrete. The temperature control element 4 senses and controls the temperature within the temperature-controlled gap 3, thus regulating the temperature within the gap 3. Through the heat transfer effect, the temperature of the concrete to be cured is ultimately controlled, reducing the probability of concrete cracking due to rapid temperature changes during the curing process.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A temperature control device for large-volume concrete skip-layout construction of raft foundations, characterized in that: include: Positioning plate (1) is fixedly connected to the side wall of the concrete to be cured, and the top of the positioning plate (1) extends beyond the top of the concrete to be cured. The insulation component (2) is slidably connected to the top of the positioning plate (1). The insulation component (2) covers the concrete to be cured and forms a temperature control gap (3) between the insulation component (2) and the concrete to be cured. The insulation component (2) can delay the loss of heat from the concrete. Temperature control component (4) is connected to the insulation component (2), and the temperature control component (4) can sense and control the temperature within the temperature control gap (3); The insulation component (2) includes an insulation film (21) and a number of support rods (22). The support rods (22) are slidably connected to the top of the positioning plate (1) on the side of the concrete to be cured. The insulation film (21) covers the side of the support rods (22) away from the concrete to be cured. The temperature control component (4) includes a temperature sensor (41) and a pressure valve (42). The temperature sensor (41) is fixedly connected to the support rod (22). A water passage hole (221) is provided in the support rod (22). The pressure valve (42) is located on the support rod (22) and connected to the water passage hole (221). The side of the pressure valve (42) facing away from the support rod (22) is directly opposite the temperature control gap (3). The end of the pressure valve (42) facing away from the support rod (22) is connected to an atomizing cover (43). The temperature sensor (41) can control the opening and closing of the pressure valve (42). A heater (6) is provided at a distance from one end of the support rod (22). The heater (6) is used to raise the temperature of the water flowing into the support rod (22). The temperature sensor (41) can control the start and stop of the heater (6).

2. The temperature control device for large-volume concrete skip-layout construction of a raft foundation according to claim 1, characterized in that: One end of the insulation film (21) is fixedly connected to the support rod (22), and the other end of the insulation film (21) is connected to a retractor (5).

3. The temperature control device for large-volume concrete skip-layout construction of a raft foundation according to claim 2, characterized in that: The retractor (5) includes a retractor (51) and a retractor motor (52). The heat insulation film (21) is fixedly connected to the retractor (51). There are two retractor motors (52) located at both ends of the retractor (51). Both ends of the retractor (51) are coaxially connected to the output shaft of the retractor motor (52).

4. The temperature control device for large-volume concrete skip-layout construction of a raft foundation according to claim 1, characterized in that: One end of the support rod (22) is connected to a first water pipe (7), and the other end of the support rod (22) is connected to a second water pipe (8). The first water pipe (7) and the second water pipe (8) are connected to each other at the ends away from the support rod (22). The heater (6) is connected to the outer wall of the first water pipe (7) and / or the second water pipe (8). The first water pipe (7) and / or the second water pipe (8) are connected to a circulation pump (9). The circulation pump (9) is used to promote the flow of water in the support rod (22).

5. A temperature control device for skip-concrete construction of a raft foundation with large-volume concrete as described in claim 4, characterized in that: The first water pipe (7) and / or the second water pipe (8) are connected to a water inlet pipe (10), and the side wall of the positioning plate (1) is provided with several drainage holes (11).

6. The temperature control device for large-volume concrete skip-layout construction of a raft foundation according to claim 1, characterized in that: The top of the positioning plate (1) is provided with a sliding groove (12), and a protective shell (101) is provided on the sliding groove (12). The protective shell (101) is detachably connected to the positioning plate (1).

7. The temperature control device for large-volume concrete skip-layout construction of a raft foundation according to claim 1, characterized in that: The material of the heat-insulating film (21) is an opaque soft film.

Images