Goaf pole tower foundation processing device

Abstract

The utility model relates to the technical field of power transmission line engineering, in particular to a goaf pole tower foundation processing device which comprises a foundation assembly, a lower beam frame, an upper beam frame and a limiting sleeve. A first butt joint channel is formed in the top of the cross-shaped base and connected with the lower beam body in an inserted mode, the lower beam body is sleeved with the upper beam body, and the limiting sleeve is fixed to the top of the lower beam body. According to the utility model, the effect of remarkably improving the anti-sedimentation and anti-deformation capability of the goaf pole tower foundation is achieved. Through a multidirectional limiting structure, such as clamping connection of a base limiting baffle and a lower beam support leg, the tower load is converted into multidirectional stress, and stress concentration and transverse displacement are avoided; a three-dimensional drainage network and an integrated pouring process are adopted, accumulated water erosion and frost heaving damage are avoided, and durability is enhanced. The problems that an existing device is poor in structural stability, prone to being affected by geological conditions, prone to damage of connecting parts, unsmooth in drainage and the like are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to in transmission line engineering technical field especially a kind of goaf tower foundation treatment device. BACKGROUND

[0002] Goaf tower foundation treatment device belongs to transmission line engineering technical field, mainly for solving the stability problem of tower foundation under the special geological conditions such as surface subsidence, uneven settlement of foundation caused by underground mining activities.This kind of device must have the characteristics such as anti-settlement, anti-deformation and quick disassembly and maintenance, to ensure the safe operation of high-voltage transmission line.

[0003] Through retrieval, the patent with the announcement number CN216787194U discloses a goaf tower foundation treatment structure, which forms a whole structure through the three-layer rigid connection of the upper beam, the lower beam and the base, and although it can improve the anti-collapse ability through geometric reinforcement, it still has significant defects: in the prior art, single insertion or bolt fixing method is often used between the upper and lower beam frames and the base, resulting in stress concentration at the connection point and lack of multidirectional constraint.For example, in the patent, the upper beam and the lower beam are connected to form a whole, while the base and the lower beam are only positioned by vertical insertion, lacking horizontal limiting structure.This design is prone to structural deformation due to stress concentration at the connection part when subjected to uneven settlement or lateral load for a long time, and even causes the tower to tilt;at the same time, single connection method is difficult to adapt to the changing needs of complex dynamic load in goaf area, and there is a risk of lateral displacement, which seriously affects the overall stability of the foundation.

[0004] The above problems directly restrict the reliability and service life of the existing device in complex geological environment in goaf area.Therefore, there is an urgent need for a tower foundation treatment device that can realize multidirectional limiting, stress dispersion and easy disassembly and maintenance, to fundamentally solve the structural instability risk caused by traditional single connection method. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a goaf tower foundation treatment device, which adopts a modular stacking structure of foundation assembly, lower beam frame, upper beam frame, upper and lower stacking butt joint and limiting sleeve cooperation.The first butt joint channel at the top of the cross-shaped base is inserted and positioned with the lower beam body, the upper beam body is sleeved outside the lower beam body, and the limiting sleeve is detachably fixed on the top of the lower beam body.The structure realizes quick disassembly and layered load transfer, significantly improves the anti-settlement ability of goaf tower foundation, and is especially suitable for quick deployment and maintenance in complex terrain.

[0006] The technical solution for achieving the purpose of the utility model is: a goaf tower foundation treatment device, comprising a foundation assembly, a lower beam frame and an upper beam frame, the foundation assembly, the lower beam frame and the upper beam frame are stacked and butt jointed and installed;

[0007] The foundation assembly comprises a base and a first docking channel formed through the top of the base, the base is in a cross-shaped structure, and the top center of the base is upwardly protruded, the first docking channel is formed at the top of the protrusion, the lower beam frame comprises a lower beam body inserted into the first docking channel, and the upper beam frame comprises an upper beam body sleeved on the lower beam body.

[0008] In some embodiments, the lower beam frame further comprises support feet fixed at the bottom of the four side edges of the lower beam body, the top protruded side edges of the base are provided with two groups of limiting baffle plates on both sides of the bottom of the support feet, and the bottom of the support feet is inserted into the corresponding two groups of limiting baffle plates for limiting.

[0009] In some embodiments, the upper beam body is in a frame-shaped structure, and four groups of side edges of the upper beam body are provided with upper beam support rods corresponding to the support feet in an up-down manner, the bottom of each upper beam support rod is provided with a clamping leg, the top of each support foot is provided with a first docking groove corresponding to the clamping leg in an up-down manner, and the upper beam body is inserted into the first docking groove through the clamping leg at the bottom of the side edge of the upper beam support rod to be docked with the lower beam body in an up-down manner.

[0010] In some embodiments, the limiting sleeve comprises a fixed frame in a frame-shaped structure, a plurality of groups of fixed bolts are transversely threadedly connected to each outer side of the fixed frame, and the top of the lower beam body is provided with a threaded hole corresponding to the fixed bolt on each side, and the fixed bolt is threadedly connected to the corresponding threaded hole.

[0011] In some embodiments, the bottom of the base is longitudinally and transversely provided with a plurality of groups of drainage grooves communicating with the inside of the first docking channel.

[0012] In some embodiments, the base, the first docking channel, the drainage groove and the limiting baffle plate are integrally formed by pouring.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] Firstly, the modular stacking structure is adopted, which comprises a foundation assembly, a lower beam frame, an upper beam frame, a docking and limiting sleeve, wherein the first docking channel at the top of the cross-shaped base is inserted and positioned with the lower beam body, the upper beam body is sleeved on the outside of the lower beam body, and the limiting sleeve is detachably fixed on the top of the lower beam body. The structure realizes quick disassembly and layered load transmission, significantly improves the anti-settlement ability of the tower foundation in the goaf, and is especially suitable for rapid deployment and maintenance in complex terrain. The quick disassembly feature can greatly shorten the construction period in complex terrain, and the layered load transmission can uniformly disperse the huge pressure on the tower, thereby reducing the settlement caused by excessive local pressure. For example, in the soft ground area of the goaf, the long-term stability of the tower can be effectively guaranteed.

[0015] Secondly, through the limiting baffle on the top of the base and the clamping of the bracket foot on the bottom of the lower beam body, a circumferential limiting constraint is formed. This design converts the tower load into multi-directional stress, effectively avoids the stress concentration problem of single insertion structure, and at the same time, inhibits the transverse displacement, fundamentally solves the stability defects caused by single-point connection of the traditional foundation device. When encountering strong wind and other horizontal external forces, this circumferential limiting can well prevent the transverse sliding of the lower beam body relative to the base, ensuring the stability of the whole device, and can greatly improve the ability of the device to resist external force interference in the open and windy goaf.

[0016] Thirdly, the split fixed frame is connected with the threaded hole on the top of the lower beam body through the fixing bolt, so that the adjustable compression limiting is realized. This structure has the functions of preventing foreign matter from entering and ensuring the stability of the top connection, and solves the long-term use loosening risk caused by the lack of top limiting of the traditional device. In the field environment, dust, small stones and other foreign matters can be prevented from entering the device to affect the connection of the components, and in the long-term wind blowing and sun shining and other complex working conditions, the fixed bolt can be adjusted to keep the effective limiting of the top of the lower beam body, so that the loosening of the upper beam body is avoided.

[0017] Fourthly, the radial drainage groove on the bottom of the base and the first docking channel form a three-dimensional drainage network, which is combined with the concrete-steel structure integrally poured forming process to eliminate the weak connection of the traditional connection. The double design effectively avoids the erosion and frost heaving damage of accumulated water, and significantly improves the durability and load transmission efficiency of the device in a humid environment. In the rainy goaf, the drainage network can quickly drain the infiltrated rainwater, prevent the steel structure from rusting and corroding, and the integrally poured forming process reduces the cracks, holes and other weak points that are prone to occur in the traditional connection mode such as welding, and can effectively avoid the frost heaving damage caused by the expansion of accumulated water freezing in the winter cold area, prolonging the service life of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in connection with the drawings and examples:

[0019] Figure 1 is the three-dimensional structure schematic diagram of the utility model in an embodiment;

[0020] Figure 2 is the split bottom schematic diagram of the utility model in an embodiment;

[0021] Figure 3 is the three-dimensional structure schematic diagram of the lower beam body provided by the utility model in an embodiment and installed on the base;

[0022] Figure 4 is the three-dimensional structure schematic diagram of the utility model in an embodiment and installed;

[0023] Figure 5 is the bottom down view of the utility model in an embodiment and installed.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1, base; 101, first docking channel; 102, drainage groove; 103, limiting baffle; 2, lower beam body; 201, threaded hole; 202, bracket foot; 2023, first docking groove; 3, upper beam body; 301, upper beam support rod; 302, clamping leg; 4, fixed frame; 401, fixed bolt. DETAILED DESCRIPTION

[0026] The utility model will be described in detail below, and the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] The utility model discloses a kind of goaf tower foundation treatment devices, and the technical scheme of the utility model is:

[0028] Figures 1-5 It is the best embodiment of the utility model, and the following will be combined with the drawings Figures 1-5 Further illustrate the utility model.

[0029] As Figure 1 - Figure 5 As shown in a kind of goaf tower foundation treatment device, including foundation assembly, lower beam frame, upper beam frame and limiting sleeve.The foundation assembly includes cross-shaped base 1, its top center is provided with the first docking channel 101 being opened and being penetrated upwards protruding.The lower beam body 2 bottom is inserted into the first docking channel 101, and vertical positioning is completed, and the upper beam body 3 is the back-shaped frame of being set in the lower beam body 2 outside.Limiting sleeve is connected in detachable mode in the lower beam body 2 top, and the modular stacking structure is formed.

[0030] As Figure 1 - Figure 2 As shown in an embodiment, the protruding side of base 1 top is evenly distributed with four groups of limiting baffle 103, and the bottom of the four side edges of lower beam body 2 is fixed with the bracket foot 202 extending outward.The bracket foot 202 bottom is inserted into the clamping groove formed by corresponding two groups of limiting baffle 103, to realize the circumferential limiting of lower beam body 2 and base 1.The structure converts tower load into multidirectional stress, avoids stress concentration of single insertion structure, prevents transverse displacement at the same time, enhances the overall stability of foundation.In addition, this limiting mode also improves the overall structural stability and reliability, enhances the firmness of the treatment device to tower foundation support under goaf environment, reduces the security risks such as tower inclination that can be caused by unstable connection.

[0031] As Figure 3 shown, in an embodiment, the four groups of side edges of the upper beam body 3 are all vertically installed with the upper beam support rods 301, and the bottom of each upper beam support rod 301 is provided with a clamping leg 302 corresponding to the upper and lower bracket feet 202. Correspondingly, the top of each bracket foot 202 is provided with a first matching butt joint groove 2023 corresponding to the clamping leg 302 in the upper and lower directions, and the upper beam body 3 is inserted into the first butt joint groove 2023 through the clamping leg 302 at the bottom of the side edge upper beam support rod 301 to be butted with the lower beam body 2 in the upper and lower directions. When installed, the clamping leg 302 is embedded in the groove to form a self-locking structure, and the clamping constraint force in the upper and lower directions ensures that the upper and lower beam frames are connected tightly and effectively resist the pulling-out force and lateral deformation. This connection structure also enhances the structural strength and integrity of the entire device, facilitates the stable support of the tower foundation in the goaf, improves the carrying capacity of the device for the tower, and can better adapt to the complex and variable geological conditions in the goaf.

[0032] As Figure 4 shown, in an embodiment, the limiting sleeve adopts a split type fixing frame 4, and the four lateral fixing bolts 401 are connected with the threaded holes 201 pre-provided on the top of the lower beam body 2. By rotating the fixing bolts 401 to adjust the pressing stroke, the installation requirements under different working conditions can be met, and the disassembly and maintenance are facilitated. The fixing frame 4 covers the top port of the lower beam body 2 to prevent foreign matters from entering the internal passage. Moreover, the limiting effect of the limiting sleeve on the top of the lower beam body 2 prevents the unnecessary movement or shaking of the upper beam body 3 along the lower beam body 2 during use, further improves the stability of the device structure, and ensures the reliability and safety of the goaf tower foundation treatment device during long-term use.

[0033] As Figure 5 shown, in an embodiment, a plurality of drainage grooves 102 are radially provided on the bottom of the base 1, and form a three-dimensional drainage network in communication with the first butt joint passage 101. After the rainwater flows into the passage along the outer wall of the lower beam body 2, it is diffused to the surrounding soil through the drainage grooves 102, avoiding water erosion of the steel structure or causing frost heaving. The inclined design of the drainage grooves 102 accelerates the drainage flow rate and reduces the water retention time. Moreover, this drainage design prevents rainwater from eroding and damaging the internal structure of the device, prolongs the service life of the goaf tower foundation treatment device, and ensures that the device can still maintain good working performance and structural stability in a humid environment.

[0034] In an embodiment, the base 1 is integrally poured with a concrete and steel structure, and the limiting baffle 103 forms an integral structure with the base 1. This design eliminates the weak points caused by traditional welding or bolt connection, improves the durability and load transmission efficiency of the structure, and is particularly suitable for the geological subsidence environment of the goaf. At the same time, this integrally poured forming method improves the strength and rigidity of the overall structure of the base 1, reduces the connection gaps between the parts, reduces the possibility of external factors such as rainwater penetrating from the connection parts, simplifies the production process, improves the production efficiency, ensures the connection tightness and stability between the parts of the base 1, and improves the reliability of the entire goaf tower foundation treatment device.

[0035] The working principle and use process of the utility model are as follows: during installation, first, the base 1 is positioned on the rammed foundation, and the quick positioning of the lower beam body 2 is realized through the clamping of the support foot 202 and the limiting baffle 103. Then, the upper beam body 3 is hoisted to make the clamping leg 302 embedded in the first butt joint groove 2023 to form self-locking. Finally, the fixed frame 4 is installed and the fixed bolt 401 is tightened to complete the rigid connection of the three-level structure. During maintenance, the parts can be disassembled and replaced step by step without damaging the overall structure. The device realizes load layer transmission through modular stacking design, and significantly improves the anti-settlement and anti-deformation ability of the tower foundation in the goaf in combination with the drainage system and the multidirectional limiting structure. And during the entire use process, the structures cooperate with each other to continuously ensure the stable and reliable support of the device on the tower foundation.

[0036] The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above technical means, and also include technical solutions composed of equivalent replacements of the above technical features. The unfinished matters of the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A device for treating the foundation of a tower in a goaf, characterized in that: This includes foundation components, lower beam frame, upper beam frame, and the stacking and docking installation of foundation components, lower beam frame, and upper beam frame; The foundation component includes a base (1) and a first docking channel (101) that is opened through the top of the base (1). The base (1) has a cross-shaped structure and the center of the top of the base (1) protrudes upward. The first docking channel (101) is opened at the top of the protrusion. The lower beam frame includes a lower beam body (2) that is inserted into the first docking channel (101) at the bottom. The upper beam frame includes an upper beam body (3) that is fitted on the lower beam body (2). It also includes: a limiting sleeve, which is detachably fitted onto the top of the lower beam body (2).

2. The device for treating tower foundations in a goaf area according to claim 1, characterized in that: The lower beam frame also includes support feet (202) fixed to the bottom of the four sides of the lower beam body (2). The top protruding side of the base (1) has two sets of limiting baffles (103) located on both sides of the bottom of the support feet (202). The bottom of the support feet (202) is inserted into the corresponding two sets of limiting baffles (103) for limiting.

3. The device for treating tower foundations in goaf areas according to claim 2, characterized in that: The upper beam body (3) is a U-shaped frame, and the four sides of the upper beam body (3) are all equipped with upper beam support rods (301) that correspond to the upper and lower support feet (202). Each upper beam support rod (301) has a snap-fit ​​leg (302) at the bottom, and each support foot (202) has a first mating groove (2023) that corresponds to the snap-fit ​​leg (302) at the top. The upper beam body (3) is inserted into the first mating groove (2023) through the snap-fit ​​leg (302) at the bottom of the side upper beam support rod (301) and mats with the lower beam body (2).

4. The device for treating tower foundations in goaf areas according to claim 1, characterized in that: The limiting sleeve includes a fixed frame (4) in the shape of a back. Each outer side of the fixed frame (4) is connected by a set of fixing bolts (401) in the transverse thread. The top of the lower beam body (2) is provided with threaded holes (201) corresponding to the fixing bolts (401) on each side. The fixing bolts (401) are threadedly connected to the corresponding threaded holes (201).

5. The device for treating tower foundations in a goaf area according to claim 2, characterized in that: The bottom of the base (1) has multiple sets of drainage channels (102) that connect to the inside of the first docking channel (101).

6. The device for treating tower foundations in a goaf area according to claim 5, characterized in that: The base (1), the first docking channel (101), the diversion groove (102) and the limiting baffle (103) are integrally cast.

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