Construction method for preventing root rot of cooling tower diagonal support

Abstract

The application relates to the field of cooling tower inclined support construction, and provides a construction method for preventing the root rot of a cooling tower inclined support, which comprises the following steps: preparing a combined part of a steel reinforcement cage of the inclined support and a base, the inner side of the steel reinforcement cage being provided with a guide piece, the bottom of the steel reinforcement cage being embedded in the base, the top of the base being provided with a groove, and an annular cavity being formed between the side wall of the groove and the steel reinforcement cage; arranging a formwork on the outer side of the steel reinforcement cage, and inserting the bottom of the formwork into the annular cavity; lowering at least one vibrating rod to the inner side of the steel reinforcement cage, and guiding and positioning at least part of the vibrating rod through the guide piece, so that the vibrating rod reaches a preset position; pouring concrete into the formwork, and controlling the falling height of the concrete to be not more than a preset height, and vibrating the concrete through the vibrating rod during pouring; taking out the vibrating rod after vibrating, and removing the formwork after the concrete in the formwork is shaped; pouring secondary filling concrete into the annular cavity, and completing the construction of the cooling tower inclined support. The application solves the problem that the traditional inclined support is prone to root rot.

Description

Technical Field

[0001] This application relates to the field of construction of inclined support columns for cooling towers, and more particularly to a construction method for preventing root rot of inclined support columns for cooling towers. Background Technology

[0002] Cooling towers, as commonly used equipment in industrial production and refrigeration systems, play a vital role in numerous fields. With the continuous development of industry, the requirements for the performance and stability of cooling towers are becoming increasingly stringent. The inclined supports of a cooling tower are its crucial supporting structure, and their stability directly affects the safe operation of the entire cooling tower. High-quality construction of the inclined supports ensures that the cooling tower can withstand various environmental and operating conditions during long-term use, guaranteeing the normal operation of industrial production.

[0003] In the traditional construction process of inclined support columns for cooling towers, the base is usually prepared first, then the woven steel cage is placed on the base, a template is set on the outside of the steel cage and concrete is poured into the template, then the concrete inside the template is vibrated with a vibrator, and finally the template is removed after the concrete dries, thus obtaining the inclined support column.

[0004] However, the base of inclined supports is prone to honeycombing, pitting, and even root rot (a serious structural defect in cast-in-place concrete walls, columns, inclined supports, and other vertical or inclined components, caused by cement mortar loss or aggregate segregation, resulting in internal looseness, lack of cement paste, aggregate accumulation, holes, exposed reinforcement, and other severe structural defects). The main causes of root rot are: 1. When vibrating concrete by placing a vibrator inside the formwork of the inclined support, gravity causes the vibrator to shift towards the shaded side of the formwork, resulting in poor vibration of the concrete near the sun-facing side. Air bubbles cannot be expelled in time, and these air bubbles tend to move upwards. Therefore, after vibration, the air bubbles on the shaded side will also move towards the sun-facing side, leading to a large accumulation of air bubbles and increasing the probability of root rot on the sun-facing side; 2. Grout leakage is prone to occur at the bottom of the formwork; 3. When pouring concrete into the formwork, the difference in the falling speed of the aggregate and grout can easily cause segregation. This root rot problem seriously affects the load-bearing capacity and service life of the inclined support, reducing the stability and safety of the entire cooling tower. Summary of the Invention

[0005] To address the problem of traditional inclined support columns being prone to root rot, this application provides a construction method for preventing root rot in inclined support columns of cooling towers.

[0006] A construction method for preventing root rot of inclined support columns in cooling towers includes the following steps: An assembly of a steel cage and a base for preparing an inclined support column is provided. The inner side of the steel cage is provided with a guide, the bottom of the steel cage is embedded in the base, the top of the base is provided with a groove, and the sidewall of the groove forms an annular cavity with the steel cage. A template is installed on the outside of the reinforcing cage, and the bottom of the template is inserted into the annular cavity; At least one vibrating rod is lowered into the inside of the steel cage, and at least a portion of the vibrating rod is limited and guided by the guide to reach a preset position. Concrete is poured into the template, and the falling height of the concrete is controlled to not exceed the preset height. The concrete is also vibrated by the vibrator during pouring. After vibration is completed, the vibrator is removed, and the formwork is removed after the concrete inside the formwork has solidified. Secondary filling concrete is poured into the annular cavity to complete the construction of the inclined support column of the cooling tower.

[0007] By adopting the above technical solution, the bottom of the template is inserted into a ring-shaped cavity formed by the groove at the top of the base, effectively solving the problem of grout leakage at the bottom of the template in traditional processes. Simultaneously, by pre-reserving the groove and placing the bottom of the template within it, the bottom of the inclined support is also positioned within the groove. If root rot occurs later, it will appear inside the groove. The pre-reserved groove facilitates secondary repairs at the root of the inclined support, and the traces of these repairs are also concealed within the groove. By installing guide components inside the reinforcing cage to limit and guide the vibrator, the problem of vibrator deviation caused by gravity is overcome, ensuring sufficient vibration of the concrete in the designated area and facilitating the removal of air bubbles. Controlling the drop height prevents concrete segregation. Finally, a secondary filling concrete is poured to completely seal the root gaps. This secondary filling concrete also serves to repair the root of the inclined support and conceal the traces of the secondary repairs. These multiple measures work synergistically to effectively prevent root rot in the inclined support, improving the structural stability and safety of the cooling tower.

[0008] Optionally, the step of preparing the assembly of the reinforcing cage and base of the inclined column includes: The steel reinforcement cage is woven, and an inlaid ring is fitted on the outside of the steel reinforcement cage, and a guide is provided on the inside of the steel reinforcement cage; The steel cage is placed at an angle in a predetermined position and secured with a temporary fixing frame; The base is poured, and the bottom of the reinforcing cage and the inlay ring are poured into the concrete of the base. The inlay ring is embedded in the top of the base and the top of the base forms the annular cavity. While the concrete of the base is in a semi-dry state, the inlay ring embedded in the base is removed, exposing the annular cavity. After the concrete of the base has completely dried, the assembly of the steel cage and the base is obtained.

[0009] By adopting the above technical solution, a precise annular cavity structure is reserved during the pouring of the base concrete using an inlay ring, and the inlay ring is removed in a semi-dry state. This not only ensures the regularity of the annular cavity formation, but also avoids the problems of difficult disassembly or damage to the base structure after the concrete has fully hardened, providing a good structural foundation for the reliable sealing insertion of the bottom of the subsequent template.

[0010] Optionally, the inlay ring comprises two semicircular rings.

[0011] By adopting the above technical solution, the inlay ring is designed as two semi-circular ring structures, which facilitates the assembly and installation on the outside of the pre-formed inclined steel cage. It also greatly facilitates the rapid removal and disassembly of the base in a semi-dry state, thus improving the convenience and efficiency of construction.

[0012] Optionally, the semi-circular ring includes a semi-circular metal skeleton, a semi-circular rigid foam, and plastic tape, wherein the semi-circular rigid foam is wrapped around the outside of the semi-circular metal skeleton, and the plastic tape is wrapped around the outside of the semi-circular rigid foam.

[0013] By adopting the above technical solutions, the metal skeleton ensures the structural strength of the inlay ring is not easily deformed; the rigid foam reduces the overall weight of the inlay ring; the outer plastic tape makes the surface of the inlay ring smooth, prevents it from sticking to the base concrete, facilitates demolding, and ensures the smoothness and flatness of the inner wall of the annular cavity.

[0014] Optionally, an elastic pad is provided on the inner side of the inlay ring.

[0015] By adopting the above technical solution, the elastic pad can achieve a tighter fit between the inlay ring and the reinforcing cage, effectively filling the assembly gap, preventing cement slurry from seeping into the inside of the inlay ring during the base pouring, keeping the joint clean, and making the subsequent demolding operation smoother. At the same time, in order to further help the inlay ring demold, the deformable elastic pad can be removed first, so that a gap appears between the inlay ring and the reinforcing cage. Then, tools can be inserted into the gap and the inlay ring can be demolded by prying or other means.

[0016] Optionally, the distance between the guide and the sun-facing side of the reinforcing cage is less than the distance between the guide and the shaded side of the reinforcing cage.

[0017] By adopting the above technical solution, the construction pain points of the vibrator tending to deviate towards the shaded side due to gravity and the tendency of air bubbles to accumulate towards the sun are addressed by deliberately positioning the guide component towards the sun. This forces the vibrator to fully vibrate in the area near the sun, completely solving the problems of honeycomb, pitted surface, and rotten roots caused by the inability of air bubbles to be discharged in time on the sun side.

[0018] Optionally, the number of vibrating rods is multiple, including at least one first vibrating rod and at least one second vibrating rod; the first vibrating rod is provided with multiple limiting rings; the guide is one-to-one with the first vibrating rod, the guide is a guide wire, and the guide passes through the limiting ring on the corresponding first vibrating rod.

[0019] By adopting the above technical solution, the guide steel wire passes through the limiting ring of the first vibrator, thereby constraining the trajectory of the first vibrator and ensuring that it moves along the sunny side without being affected by gravity; at the same time, in conjunction with the unconstrained second vibrator, the vibration needs of the whole and the local are taken into account, ensuring the overall density of the concrete inside the inclined column.

[0020] Optionally, the step of lowering at least one vibrator into the inner side of the reinforcing cage and guiding at least a portion of the vibrator through the guide to bring the vibrator to a preset position further includes, before: Foam is filled between the bottom of the template and the bottom wall of the annular cavity.

[0021] By adopting the above technical solution, the tiny gaps between the bottom of the template and the bottom wall of the annular cavity of the base are filled with expanding foam to form a flexible and dense secondary sealing layer, which further eliminates the risk of grout leakage at the bottom of the template under the heavy pressure of concrete during the pouring process, and cuts off the grout leakage factors that cause root rot from the source.

[0022] Optionally, the step of pouring concrete into the template, controlling the concrete drop height to not exceed a preset height, and compacting the concrete using the vibrator during pouring includes: The extended pouring pipe is lowered into the inside of the template, with the discharge end of the extended pouring pipe located at the inner bottom of the template; Concrete is poured through the extended pouring pipe. During the pouring process, the extended pouring pipe and the vibrator are gradually raised, and the concrete is vibrated by the vibrator.

[0023] By adopting the above technical solution, the extended pouring pipe reaches the bottom and is raised synchronously with the pouring progress, which fundamentally overcomes the segregation phenomenon caused by the inconsistent falling speed of concrete aggregate and grout due to the high drop, ensuring the uniformity of concrete material from bottom to top of the inclined column, greatly improving the molding quality, and the vibrator can also be raised with the pouring progress to complete the vibration.

[0024] Optionally, the secondary filling concrete is micro-expansion fine aggregate concrete or non-shrink high-strength grout.

[0025] By adopting the above technical solution, using micro-expansion fine stone concrete or non-shrink high-strength grout for secondary filling, and utilizing its micro-expansion or non-shrinkage physical properties, the gap between the annular cavity and the root of the inclined column can be filled more densely and fully, avoiding the micro-cracks caused by the drying shrinkage of ordinary concrete, and greatly enhancing the structural strength and anti-corrosion and anti-seepage capabilities of the root node.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. Comprehensive prevention of grout leakage and segregation: Through the structure of "base annular cavity + template insertion + secondary filling" and foam sealing, combined with the pouring method of "extended guide pipe follow-up lifting", the root leakage and stone grout segregation caused by root rot are eliminated from the source, ensuring the density of the root concrete; 2. The introduction of guide steel wires that are biased towards the sun side to precisely constrain the movement trajectory of the first vibrator has broken through the industry bottleneck of the vibrator shifting towards the shaded side due to gravity in traditional inclined construction. This ensures that the sun side, where air bubbles are easily accumulated, can be fully vibrated and degassed, thus avoiding honeycomb and pitted surfaces on the sun side. 3. Ingenious design of construction auxiliary mold: By designing a combined semi-circular inlay ring with a metal frame, rigid foam and outer tape, the annular cavity can be accurately reserved, and demolding is easy when the concrete is semi-dry, thus balancing molding accuracy and construction efficiency. Attached Figure Description

[0027] Figure 1 This is a flowchart illustrating the construction method for preventing root rot of the inclined support column of the cooling tower provided in this application; Figure 2 This is a construction diagram of the inclined support provided in this application before the formwork is installed; Figure 3 This is a construction diagram of the inclined support provided in this application after the formwork has been installed; Figure 4 This is a sectional view of the inclined support provided in this application after the template has been installed; Figure 5 This is a structural schematic diagram of the guide and vibrator provided in this application.

[0028] Explanation of reference numerals in the attached figures: 1. Reinforcing cage; 2. Base; 21. Annular cavity; 3. Guide component; 4. Inlay ring; 5. Elastic pad; 6. Template; 7. Vibrating rod; 71. Limiting ring; 8. Lengthen the pouring pipe. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1 to 5 This application will be described in further detail.

[0030] like Figure 1 As shown in the figure, this embodiment provides a construction method to prevent the roots of the inclined support column of a cooling tower from rotting. The specific process is as follows: S100, a combination of a steel cage 1 and a base 2 for preparing an inclined support column is provided. A guide 3 is provided on the inner side of the steel cage 1. The bottom of the steel cage 1 is embedded in the base 2. A groove is provided on the top of the base 2. An annular cavity 21 is formed between the side wall of the groove and the steel cage 1.

[0031] like Figures 2 to 4 As shown, in actual construction, the longitudinal main bars and annular stirrups are first tied or welded together to form a reinforcing cage 1. The reinforcing cage 1 serves as the framework for the inclined support. Then, guide members 3 are installed inside the reinforcing cage 1 to guide the vibrating rods 7. Specifically, the guide member 3 can be a guide wire arranged along the axis of the reinforcing cage 1, with both ends connected to the two ends of the reinforcing cage 1. Multiple guide wires can be installed to guide multiple vibrating rods 7.

[0032] Next, an insert ring 4, acting as a temporary mold, is fitted onto the outside of the woven steel cage 1. For ease of installation and subsequent disassembly, the insert ring 4 is designed as a split structure composed of two semicircular rings, which are bound to the steel cage 1. Each semicircular ring, from the inside out, consists of a semicircular metal frame, a semicircular rigid foam, and plastic tape. The metal frame (such as bent steel bars) provides the component with compressive structural strength; the rigid foam (such as polyurethane foam blocks) wraps around the metal frame to reduce overall weight; and the outermost layer of plastic tape (such as smooth PVC tape) provides an extremely smooth outer surface, preventing adhesion to concrete. Furthermore, a compressible elastic pad 5 (such as a rubber gasket) is adhered to the inside of the insert ring 4 to fill the assembly gap between the insert ring 4 and the rough steel cage 1.

[0033] Subsequently, the reinforcing cage 1 is placed at an angle in the predetermined construction position and its position and angle are fixed using a temporary fixing frame. It should be noted that since the inclined support column ultimately needs to be in an inclined posture, its outer surface is naturally divided into a sunny side facing upwards and a shady side facing downwards. Therefore, when the guide component 3 is placed inside the reinforcing cage 1, a positional offset design is required. Furthermore, when placing the reinforcing cage 1, the distance between the guide component 3 and the sunny side of the reinforcing cage 1 must be less than the distance between the guide component 3 and the shady side of the reinforcing cage 1; that is, the guide component 3 is placed near the sunny side to ensure that the subsequent vibrator 7 can effectively vibrate the concrete around the sunny side.

[0034] Concrete for the base 2 is poured into the pre-excavated foundation pit, submerging the bottom of the reinforcing cage 1 and the fitted insert ring 4 in the liquid concrete of the base 2. The insert ring 4 is precisely fitted into the top of the base 2 to occupy space.

[0035] When the concrete of base 2 is in a semi-dry state (usually after initial setting), the operator first removes the elastic pad 5 from the gap, creating a clearance between the inlaid ring 4 and the reinforcing cage 1. Then, using tools such as pry bars, the inlaid ring 4 embedded in base 2 is removed, exposing the regular annular cavity 21. After the concrete of base 2 has completely dried, the required assembly is obtained. By using the inlaid ring 4 to pre-reserve the annular cavity 21 and demolding it in a semi-dry state, the accuracy of the cavity dimensions is ensured, and the problem of the inlaid ring 4 getting stuck and difficult to remove after the concrete has completely hardened is avoided.

[0036] S200, a template 6 is set on the outside of the steel cage 1, and the bottom of the template 6 is inserted into the annular cavity 21.

[0037] A cylindrical prefabricated steel formwork 6 is erected around the reinforcing cage 1. The cylindrical prefabricated steel formwork 6 can be formed by splicing two arc-shaped sub-formworks. During erection, the bottom of the formwork 6 is vertically and precisely inserted into the pre-reserved annular cavity 21 of the base 2. This assembly structure, in which the bottom of the formwork 6 is directly embedded in the groove of the base 2, changes the problem of grout leakage at the joints caused by the traditional formwork 6 being placed directly on the surface of the base 2. Even if there is a very small amount of grout seepage later, it is very convenient to carry out centralized repairs later because the bottom is confined inside the groove.

[0038] S300, at least one vibrating rod 7 is lowered into the inside of the steel cage 1, and at least part of the vibrating rod 7 is limited and guided by the guide member 3 so that the vibrating rod 7 reaches the preset position.

[0039] Before lowering the vibrator 7 in this step, fill the tiny assembly gaps between the bottom of the template 6 and the bottom wall of the annular cavity 21 with expanding foam (such as polyurethane expanded foam). After the expanding foam cures, it forms a sealed, water-resistant layer to prevent grout leakage.

[0040] like Figures 2 to 5 As shown, after sealing is completed, the vibrator 7 is lowered. Because air bubbles inside the concrete tend to move upwards due to buoyancy, they accumulate in large quantities on the inner wall of the formwork 6 on the sunny side of the inclined support. Therefore, multiple vibrators 7 are used, including at least one first vibrator 7 and at least one second vibrator 7 (not shown in the figure). In this embodiment, both the first vibrator 7 and the guide 3 can be three in number, and the guide 3 corresponds one-to-one with the first vibrator 7.

[0041] Multiple annular limiting rings 71 are coaxially welded to the outer shell of the first vibrating rod 7. The guide member 3, which is biased on the sunny side, passes through the multiple limiting rings 71 on the corresponding first vibrating rod 7 in sequence, so that the first vibrating rod 7 can slide along the corresponding guide member 3.

[0042] As the first vibrator 7 descends along the guide wire, its movement is strictly confined to the area near the sun-facing side via a sliding sleeve connection, preventing it from shifting towards the shaded side even under gravitational pull. Once vibration is activated, the first vibrator 7 generates high-frequency excitation force in the sun-facing area, directly disrupting the surface tension of the air bubbles accumulated on the inner wall of the sun-facing side, forcing them to escape. Meanwhile, the second vibrator 7, unconstrained by the guide wire, can hang freely, responsible for vibrating the concrete in the shaded and central areas. This "precisely oriented sun-facing side + global support" approach effectively solves the problems of honeycomb and root rot on the sun-facing side of inclined supports.

[0043] S400, pour concrete into formwork 6, and control the concrete drop height to not exceed the preset height, and vibrate it with vibrator 7 during pouring.

[0044] An extended pouring pipe 8 (such as a metal pump pipe with a flexible joint) is used to deliver concrete directly to the inside of the formwork 6, ensuring that the outlet end of the extended pouring pipe 8 is at the bottom inner part of the formwork 6. Concrete is continuously poured through the extended pouring pipe 8, and the free fall height of the concrete is strictly controlled to not exceed a preset height range, for example, between 1.5 meters and 2.0 meters. Depending on the flow characteristics of the concrete on site, the actual controlled fall height can be 1.5 meters, 2.0 meters, or an intermediate value of 1.8 meters.

[0045] As the concrete level rises, the extended pouring guide pipe 8 and vibrator 7 are gradually and uniformly pulled upwards, ensuring a relatively constant distance between the discharge end and the concrete surface. High-frequency vibration is then achieved through the slowly rising vibrator 7. This combination of "bottom-line pouring, limiting drop, and follow-up lifting" fundamentally eliminates the separation of large aggregate particles from the slurry caused by gravity-induced drop, ensuring uniform material consistency from bottom to top in the inclined support column.

[0046] S500, after vibration is completed, remove the vibrator 7, and remove the formwork 6 after the concrete inside the formwork 6 has solidified.

[0047] After all the air bubbles have been expelled, gently pull up and remove all the vibrators 7. Then let it stand until the liquid concrete inside the formwork 6 has fully cured through the hydration reaction and reached the demolding strength. Then remove the outer surrounding formwork 6. At this point, the main structure of the inclined column is formed.

[0048] S600, pour secondary filling concrete into the annular cavity 21 to complete the construction of the inclined support column of the cooling tower.

[0049] Finally, secondary filling concrete is poured into the annular cavity 21 reserved at the base of the base 2 to completely seal the root joint left after the formwork 6 is removed. According to design requirements, the secondary filling concrete can be either micro-expansion fine aggregate concrete, which utilizes its slight volume expansion during hardening to actively compress and fill all the tiny pores within the annular cavity 21; or a non-shrink high-strength grout, which utilizes its excellent fluidity and non-shrinkage properties to achieve high-strength bonding at the root joint. Both methods avoid micro-cracks caused by the drying shrinkage of ordinary cement mortar, significantly enhancing corrosion and impermeability, completely blocking the risk of root rot from the outside, and completing the final construction of the inclined support column.

[0050] It should be noted that after the main structure of the inclined support is formed, the presence of rotten roots on the sunny side of the inclined support can be observed through the annular cavity 21. If rotten roots are found, they should be repaired promptly, and the repair method is not strictly limited. For example, the aforementioned measure of pouring secondary filling concrete is one such repair method. After pouring the secondary filling concrete, the repair marks completely disappear, resulting in a better aesthetic appearance.

[0051] 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 construction method for preventing root rot of inclined support columns in cooling towers, characterized in that, Includes the following steps: A combination of a steel cage (1) and a base (2) for preparing an inclined support is provided. The inner side of the steel cage (1) is provided with a guide (3). The bottom of the steel cage (1) is embedded in the base (2). The top of the base (2) is provided with a groove. The side wall of the groove and the steel cage (1) form an annular cavity (21). A template (6) is set on the outside of the steel cage (1), and the bottom of the template (6) is inserted into the annular cavity (21); At least one vibrating rod (7) is placed inside the steel cage (1), and at least part of the vibrating rod (7) is limited and guided by the guide (3) so that the vibrating rod (7) reaches the preset position. Concrete is poured into the template (6), and the falling height of the concrete is controlled to not exceed the preset height. During pouring, the concrete is vibrated by the vibrator (7). After vibration is completed, the vibrator (7) is removed, and the formwork (6) is removed after the concrete inside the formwork (6) has been formed. Secondary filling concrete was poured into the annular cavity (21) to complete the construction of the inclined support column of the cooling tower.

2. The construction method for preventing root rot of the inclined support column of the cooling tower according to claim 1, characterized in that: The steps for preparing the assembly of the steel cage (1) and base (2) of the inclined support include: The steel cage (1) is woven, and an inlaid ring (4) is fitted on the outside of the steel cage (1), and a guide (3) is provided on the inside of the steel cage (1). The steel cage (1) is placed at an angle in a preset position and fixed by a temporary fixing frame; The base (2) is poured, and the bottom of the steel cage (1) and the inlay ring (4) are poured into the concrete of the base (2). The inlay ring (4) is embedded in the top of the base (2) and the top of the base (2) forms the annular cavity (21). While the concrete of the base (2) is in a semi-dry state, the inlay ring (4) embedded in the base (2) is removed, so that the annular cavity (21) is exposed. After the concrete of the base (2) has completely dried, the assembly of the steel cage (1) and the base (2) is obtained.

3. The construction method for preventing root rot of the inclined support column of the cooling tower according to claim 2, characterized in that: The inlay ring (4) comprises two semicircular rings.

4. The construction method for preventing root rot of the inclined support column of the cooling tower according to claim 3, characterized in that: The semi-circular ring includes a semi-circular metal skeleton, a semi-circular rigid foam, and plastic tape. The semi-circular rigid foam is wrapped around the outside of the semi-circular metal skeleton, and the plastic tape is wrapped around the outside of the semi-circular rigid foam.

5. The construction method for preventing root rot of the inclined support column of the cooling tower according to claim 2, characterized in that: An elastic pad (5) is provided on the inner side of the inlaid ring (4).

6. The construction method for preventing root rot of the inclined support column of the cooling tower according to claim 1, characterized in that: The distance between the guide (3) and the sun side of the steel cage (1) is less than the distance between the guide (3) and the shaded side of the steel cage (1).

7. The construction method for preventing root rot of the inclined support column of the cooling tower according to claim 6, characterized in that: The number of vibrating rods (7) is multiple, including at least one first vibrating rod (7) and at least one second vibrating rod (7); the first vibrating rod (7) is provided with multiple limiting rings (71); the guide (3) corresponds one-to-one with the first vibrating rod (7), the guide (3) is a guide wire, and the guide (3) passes through the limiting ring (71) on the corresponding first vibrating rod (7).

8. The construction method for preventing root rot of the inclined support column of the cooling tower according to claim 1, characterized in that: The step of lowering at least one vibrating rod (7) into the inner side of the reinforcing cage (1) and guiding at least a portion of the vibrating rod (7) to a preset position via the guide member (3) further includes, prior to: Foam is filled between the bottom of the template (6) and the bottom wall of the annular cavity (21).

9. The construction method for preventing root rot of the inclined support column of the cooling tower according to claim 1, characterized in that: The steps of pouring concrete into the template (6), controlling the concrete drop height to not exceed the preset height, and vibrating the concrete with the vibrator (7) during pouring include: The extended pouring pipe (8) is lowered into the inside of the template (6), with the discharge end of the extended pouring pipe (8) located at the bottom inside of the template (6); Concrete is poured through the extended pouring pipe (8). During the pouring process, the extended pouring pipe (8) and the vibrator (7) are gradually raised, and the concrete is vibrated by the vibrator (7).

10. The construction method for preventing root rot of the inclined support column of the cooling tower according to claim 1, characterized in that: The secondary filling concrete is micro-expansion fine aggregate concrete or non-shrink high-strength grout.

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