Pole tower foundation, method of use, pole tower

Abstract

The present application relates to a kind of tower foundation, use method, tower, including tower foot installation base, it is equipped with vertical guide for conducting tower foot shear force and tower foot push-up device for pushing tower foot in the vertical direction, base settlement measuring device includes monitoring hard vertical pipe, reference hard vertical pipe, gas communication hose and liquid communication hose, the two ends of liquid communication hose are respectively connected with the lower end of monitoring hard vertical pipe, the lower end of reference hard vertical pipe pipeline, to form U-shaped tube, U-shaped tube is filled with flowable liquid, the two ends of gas communication hose are respectively connected with the upper end of monitoring hard vertical pipe, the upper end of reference hard vertical pipe pipeline, and the communication port of gas communication hose and monitoring hard vertical pipe, the communication port of gas communication hose and reference hard vertical pipe are all higher than the liquid level of flowable liquid in U-shaped tube, monitoring hard vertical pipe is fixedly connected with tower foot installation base.It can measure the settlement of tower foot, and conveniently correct tower foot height.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tower installation, in particular to a tower foundation, a use method and a tower. BACKGROUND

[0002] Generally, the tower has four tower feet, and the tower feet are fixed on the tower foot installation base during use. The tower gravity is dispersed on the tower foot installation base through the four tower feet, and the transverse shear force of the tower feet is borne by the connecting structure. If the tower foot installation base is a split structure, that is, each tower foot is installed on a tower foot installation base, after the geological environment changes, one or more tower foot installation bases will settle. If the settlement amounts of the four tower foot installation bases are the same, the adverse effect on the tower is relatively small. However, if the settlement amounts of the tower foot installation bases are different, the four tower feet of the tower are unevenly stressed, which may cause the tower to tilt or cause the truss structure of the tower to be unbalanced. Therefore, it is necessary to monitor the settlement of the tower foot installation base and timely correct the height of the tower foot installation base after the settlement of the tower foot installation base, so as to restore the support of the tower foot installation base to the tower feet.

[0003] At present, the way to correct the height of the tower foot installation base is to use a crane to hoist the tower after the line is powered off, and at the same time, the connection between the tower and the tower foot installation base is removed. After the tower is hoisted, the gasket is arranged between the tower foot installation base and the tower foot which has settled, and then the fixed connection between the tower and the tower foot installation base is restored. The height correction of the tower foot installation base is completed, and the line is powered on. This repair method needs to be powered off, which has a great influence on power supply, and needs to use a large crane and prepare a passing route and operation space.

[0004] Chinese patent document CN111854687A published on October 30, 2020 discloses a power transmission tower settlement amount online monitoring system, and specifically discloses a tower settlement monitoring device. The tower leg A is taken as a settlement reference datum. The inclination angle before the settlement of the tower leg B and the inclination angle after the settlement of the tower leg B are measured by using a wireless single-axis inclination sensor. The settlement value of the tower leg B is calculated in combination with the distance L1 between the tower leg A and the tower leg B. When the tower is a truss structure, the force borne by a certain tower leg after the settlement of the tower leg is significantly lower than that borne by other tower legs. Therefore, the measured settlement amount is lower than the actual settlement amount. The correction of the height of the tower leg on this basis cannot effectively offset the settlement amount of the tower leg. SUMMARY

[0005] The purpose of the present application is to provide a tower foundation, a use method and a tower to measure the settlement amount of the tower foot from a new technical route and facilitate the correction of the height of the tower foot.

[0006] The technical solution of the present application is as follows:

[0007] A tower foundation, comprising a tower foot mounting base, a base settlement measuring device and a tower foot pushing device, the tower foot mounting base is fixedly connected with vertical guide rails for conducting tower foot shearing force, the tower foot pushing device is installed on the tower foot mounting base for pushing the tower foot in the vertical direction, the base settlement measuring device comprises a monitoring hard vertical pipe, a reference hard vertical pipe, a gas communication hose and a liquid communication hose, two ends of the liquid communication hose are respectively connected with the lower end of the monitoring hard vertical pipe and the lower end of the reference hard vertical pipe to form a U-shaped pipe, the U-shaped pipe contains a flowable liquid, two ends of the gas communication hose are respectively connected with the upper end of the monitoring hard vertical pipe and the upper end of the reference hard vertical pipe, and the communication ports of the gas communication hose and the reference hard vertical pipe are higher than the liquid level of the flowable liquid in the U-shaped pipe, and the monitoring hard vertical pipe is fixedly connected with the tower foot mounting base.

[0008] Preferably, the gas communication hose and the U-shaped pipe form a double-layer pipe.

[0009] Preferably, the tower foundation further comprises a tower foot cushion block for connecting the tower foot mounting base and the tower foot in the vertical direction.

[0010] Preferably, the tower foot pushing device is used for unidirectionally conducting the action force of the tower foot mounting base to the tower foot.

[0011] Preferably, the tower foot pushing device is a hydraulic jack or a stud jack.

[0012] The use method of the tower foundation, comprising the following steps:

[0013] S1, setting the reference hard vertical pipe at a settlement reference position, recording the liquid level height in all monitoring hard vertical pipes and the liquid level height in all reference hard vertical pipes;

[0014] S2, when the liquid level height in the monitoring hard vertical pipe of the same set of base settlement measuring device is monitored to be increased, the liquid level height in the reference hard vertical pipe is monitored to be decreased, and the liquid level height in at least one reference hard vertical pipe is unchanged, the tower foot mounting base installed with the monitoring hard vertical pipe is set as a settlement base, and the liquid level height in the reference hard vertical pipe matched with the settlement base is recorded. h A20 the liquid level height in the monitoring hard vertical pipe h A21 , the liquid level height in the reference hard vertical pipe in step S1 is set as h A10 the liquid level height in the monitoring hard vertical pipe is set as h A11 ;

[0015] S3, operating the tower leg lifting device to lift the tower leg h A10 - h A20 + h A21 - h A11 .

[0016] Preferably, after step S3, there is further a step S4 of operating the tower leg lifting device to slightly lift to set a tower leg pad on the settlement base, the height of the tower leg pad being h A10 - h A20 + h A21 - h A11 operating the tower leg lifting device to connect the tower leg with the tower leg pad.

[0017] A tower, comprising a tower leg installed on the tower foundation as described above, the tower leg is connected with the vertical guide rail moving pair, the lifting output of the tower leg lifting device is used to lift the tower leg.

[0018] The beneficial effects of the present application are:

[0019] 1. A tower foundation, comprising a tower leg installation base, a vertical guide rail for conducting the shearing force of the tower leg is fixedly connected on the tower leg installation base, a tower leg lifting device is installed on the tower leg installation base, used to lift the tower leg in the vertical direction, so that after the settlement of the tower leg installation base is measured by the base settlement measuring device, the tower leg can be lifted as needed to adjust the height of the tower leg when the tower leg installation base settles, reducing the adverse effects of the settlement of the split tower leg installation base on the tower. In the present application, the base settlement measuring device comprises a monitoring hard vertical pipe, a reference hard vertical pipe, a gas communication hose and a liquid communication hose, the monitoring hard vertical pipe is fixedly connected with the tower leg installation base, the reference hard vertical pipe is arranged at the settlement reference position, so that after the tower leg installation base settles, although the liquid level of the monitoring hard vertical pipe is at the same level as the liquid level in the reference hard vertical pipe, the liquid level of the monitoring hard vertical pipe is raised and the liquid level in the reference hard vertical pipe is lowered, and by combining the liquid level of the monitoring hard vertical pipe before settlement and the liquid level of the reference hard vertical pipe, the actual settlement of the tower leg installation base can be obtained.

[0020] 2. The tower foundation of the present application, the gas communication hose and the U-shaped pipe form a double-layer pipe, so that the base settlement measuring device has simple structure and is convenient for transportation and installation.

[0021] 3. The tower foundation of the present application further comprises a tower foot pad for connecting the tower foot mounting base and the tower foot in the vertical guide rail direction. In this way, the stress area is increased, the pressure is reduced, and the support function of the tower foot lifting device can be removed, so the requirement for the maintenance thrust of the tower foot lifting device is low.

[0022] 4. In the tower foundation of the present application, the tower foot lifting device is used to conduct the force of the tower foot mounting base to the tower foot in one direction. In this way, due to the presence of the vertical guide rail, the vertical settlement of the tower foot mounting base can be ensured, and the true settlement amount of the tower foot mounting base can be obtained.

[0023] 5. In the use method of the tower foundation of the present application, by measuring the liquid level in the reference hard vertical pipe matched with the settlement base before settlement h A10 , monitoring the liquid level in the hard vertical pipe h A11 , and measuring the liquid level in the reference hard vertical pipe matched with the settlement base after settlement h A20 , monitoring the liquid level in the hard vertical pipe h A21 , the settlement amount of the settlement base can be obtained as h A10 - h A20 + h A21 - h A11 , and then in step S3, the tower foot lifting device is operated to make the tower foot lifting device installed on the settlement base lift h A10 - h A20 + h A21 - h A11 , the heightening treatment of the settlement base can be completed, the corresponding tower foot is supported, and the adverse effect of the tower foot mounting base on the tower is reduced.

[0024] 6. In the use method of the tower foundation of the present application, step S4 is added, i.e. the tower foot mounting base and the tower foot are connected in the vertical guide rail direction through the tower foot pad. In this way, the stress area is increased, the pressure is reduced, and the support function of the tower foot lifting device can be removed, so the requirement for the maintenance thrust of the tower foot lifting device is low, even if the tower foot lifting device fails, the adverse effect can be minimized.

[0025] 7. The tower of the present application, after the settlement of one or more tower foot mounting bases installed, has low repair difficulty. It does not need to be powered off, and has small influence on power supply. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a use state reference diagram of a tower footing.

[0027] Figure 2 is Figure 1 an A-A sectional view.

[0028] Figure 3 is a sectional view of a footing settlement measuring device.

[0029] Figure 4 is a schematic view of monitoring hard riser pipe and reference hard riser pipe of a footing settlement measuring device before settlement.

[0030] Figure 5 is a schematic view of monitoring hard riser pipe and reference hard riser pipe of a footing settlement measuring device after settlement.

[0031] Figure 6 is a use state reference diagram of a tower footing.

[0032] Figure 7 is a use state reference diagram of a tower footing.

[0033] BRIEF DESCRIPTION OF DRAWINGS: 1, tower foot mounting footing, 2, vertical guide rail, 3, tower foot pushing device, 4, footing settlement measuring device, 41, reference hard riser pipe, 42, monitoring hard riser pipe, 43, liquid communication hose, 44, gas communication hose, 5, tower foot pad, 6, tower foot. EMBODIMENT

[0034] The present application will be described in the form of examples with reference to the accompanying drawings to assist those skilled in the art in understanding and implementing the present application. Unless otherwise stated, the following examples and technical terms therein should not be interpreted beyond the technical knowledge of the art.

[0035] Example 1: a tower footing, see Figure 1 -2, comprising a tower foot mounting footing 1, a footing settlement measuring device 4 and a tower foot pushing device 3, the tower foot mounting footing 1 is fixedly connected with a vertical guide rail 2 for conducting the shearing force of the tower foot 6, the tower foot pushing device 3 is installed on the tower foot mounting footing 1 for pushing the tower foot 6 in the vertical direction, and the footing settlement measuring device 4 is used to measure the settlement of the tower foot mounting footing 1.

[0036] See Figure 2 , 3In this embodiment, the abutment settlement measuring device 4 includes a monitoring vertical pipe 42, a reference vertical pipe 41, a gas communication hose 44 and a liquid communication hose 43. The two ends of the liquid communication hose 43 are respectively connected with the lower end of the monitoring vertical pipe 42 and the lower end of the reference vertical pipe 41 to form a U-shaped pipe. Since the U-shaped pipe includes a hose section, the relative positions of the monitoring vertical pipe 42 and the reference vertical pipe 41 can be changed within the deformation range of the liquid communication hose 43. The U-shaped pipe is filled with a flowable liquid, and the two ends of the gas communication hose 44 are respectively connected with the upper end of the monitoring vertical pipe 42 and the upper end of the reference vertical pipe 41. Since the gas communication hose 44 can also be deformed, the relative positions of the monitoring vertical pipe 42 and the reference vertical pipe 41 can still be changed. The injection amount of the flowable liquid should ensure that the liquid communication hose 43 is filled with liquid, the lower part of the monitoring vertical pipe 42 is provided with liquid and the upper part is provided with air, the lower part of the reference vertical pipe 41 is provided with liquid and the upper part is provided with air, and the communication openings of the gas communication hose 44 and the monitoring vertical pipe 42 and the communication openings of the gas communication hose 44 and the reference vertical pipe 41 are all higher than the liquid level of the liquid in the U-shaped pipe. Since the liquid is an incompressible fluid and the gas is a compressible fluid, the gas provided in the upper part of the U-shaped pipe and the gas communication hose 44 can form the flow conditions of the liquid. The presence of the gas communication hose 44 can keep the liquid level in the monitoring vertical pipe 42 and the liquid level in the reference vertical pipe 41 on the same plane.

[0037] In use, the monitoring vertical pipe 42 is fixedly connected with the tower foot mounting abutment 1, and the reference vertical pipe 41 is arranged at a position not prone to settlement. Referring to Figure 4 、 5 , it is assumed that the liquid level height in the reference vertical pipe before the settlement of the monitoring vertical pipe 42 is h A10 , the liquid level height in the monitoring vertical pipe is h A11 , and the liquid level height in the reference vertical pipe after the settlement of the monitoring vertical pipe 42 is h A20 , the liquid level height in the monitoring vertical pipe is h A21 . Referring to Figure 5 , when the size of the space in the liquid communication hose 43 is kept unchanged and the density of the liquid is constant during the deformation of the liquid communication hose 43, even if the monitoring vertical pipe 42 and the reference vertical pipe 41 are cross-section changing pipes or the cross-sectional area ratio of the monitoring vertical pipe 42 and the reference vertical pipe 41 is not proportional, the settlement amount of the monitoring vertical pipe 42 is h A10 - h A20 + h A21 - h A11 . Although Figure 5 ,h A10 - h A20 + h A21 - h A11 = h A21 - h A20 But this is only true in a special case, that is, the bottom surface of the monitoring hard vertical pipe 42 is set on the same level as the bottom surface of the reference hard vertical pipe 41 before monitoring the settlement of the hard vertical pipe 42.

[0038] Referring to Figure 3 In this embodiment, the gas communication hose 44 is arranged in the U-shaped pipe and forms a double-layer pipe with the U-shaped pipe. Of course, the gas communication hose 44 can also be arranged outside the U-shaped pipe and form a double-layer pipe with the U-shaped pipe, but in this case, the pipe opening of the gas communication hose 44 is preferably connected with the outer pipe wall of the monitoring hard vertical pipe 42 and the outer pipe wall of the reference hard vertical pipe 41, so as to facilitate the fixation of the monitoring hard vertical pipe 42 and the reference hard vertical pipe 41.

[0039] Although the tower leg pushing-up device can support the tower leg, the height of the tower leg pushing-up device needs to be maintained at all times after the tower leg is separated from the tower leg installation base 1. Therefore, the tower foundation can further include a tower leg pad, which is used to connect the tower leg installation base and the tower leg in the vertical guide rail direction. In this way, after the tower leg is separated from the tower leg installation base 1, a tower leg pad with a suitable height is arranged between the tower leg and the tower leg installation base 1, which can not only increase the stress dispersion area but also remove the support function of the tower leg pushing-up device.

[0040] Referring to Figure 2 In this embodiment, the tower leg pushing-up device 3 is a hydraulic jack. Common hydraulic jacks belong to a one-way force transmission structure. Referring to Figure 6 Due to the guiding effect of the vertical guide rail 2, the tower leg installation base 1 will only settle and will not tilt. Moreover, after the settlement of the tower leg installation base 1, the tower leg at this position is actually in a separated state from the tower foundation, that is, the settlement amount of the right tower leg installation base 1 is real.

[0041] Of course, in other embodiments, the tower leg pushing-up device 3 can also be a stud jack. The stud jack comprises a base, a threaded cylinder, a screw rod and a top platform, the base is fixedly connected with the threaded cylinder, the threaded cylinder is threadedly connected with the screw rod, and the screw rod is connected with the top platform in a rotary pair. In use, the base is connected with the tower leg mounting base 1, and the axis of the screw rod is arranged in the vertical direction. The top platform is fixedly connected with the tower leg. In this way, rotating the screw rod can also achieve the function of the tower leg pushing-up device 3. However, since the stud jack belongs to a bidirectional force transmission structure, after the tower leg mounting base 1 settles, the tower leg 6 is still fixedly connected with the tower leg mounting base 1. However, setting the top platform in contact connection with the tower leg, or setting the base in contact connection with the tower leg pushing-up device 3, can also form a unidirectional force transmission structure.

[0042] Embodiment 2: A tower, comprising a tower leg mounted on the tower leg foundation in embodiment 1, the tower leg is connected with the vertical guide rail in a movable pair, and the pushing-up output part of the tower leg pushing-up device is used to push up the tower leg. Each tower leg corresponds to a tower leg foundation.

[0043] The use method of the tower leg foundation in this embodiment comprises the following steps:

[0044] S1, setting the reference hard vertical pipe 41 at a settlement reference position, fixing a monitoring hard vertical pipe 42 to each tower leg mounting base connected with the same tower, and recording the liquid level height in all monitoring hard vertical pipes 42 and the liquid level height in all reference hard vertical pipes 41;

[0045] S2, when the liquid level height in the monitoring hard vertical pipe 42 of the same set of base settlement measuring device is monitored to rise, the liquid level height in the reference hard vertical pipe 41 is monitored to fall, and the liquid level height in at least one reference hard vertical pipe 41 is unchanged, the tower leg mounting base on which the monitoring hard vertical pipe 42 is mounted is set as a settlement base, and the liquid level height in the reference hard vertical pipe 41 matched with the settlement base is recorded h A20 , the liquid level height in the monitoring hard vertical pipe 42 h A21 , the liquid level height in the reference hard vertical pipe 41 of the same set of base settlement measuring device in step S1 is set as h A10 , and the liquid level height in the monitoring hard vertical pipe 42 is set as h A11 ;

[0046] Referring to Figure 6 , S3, operating the tower leg pushing-up device to make the tower leg pushing-up device mounted on the settlement base push up h A10 - h A20 + h A21 - h A11 .

[0047] It should be understood that in step S2 and step S1, the inner space of the liquid communication hose 43 should be kept constant during the deformation of the liquid communication hose 43, and the liquid density is constant, so if the liquid density in step S2 is different from the liquid density in step S1, the liquid density in step S2 should be adjusted to the liquid density in step S1. h A10 and h A11 The converted height should be the height of the tower foot installation base.

[0048] In the method for using the tower foundation, after step S3, step S4 can be further included, referring to Figure 7 , the tower foot lifting device is operated to be slightly lifted to set the tower foot pad on the settlement base, and the height of the tower foot pad is h A10 - h A20 + h A21 - h A11 The tower foot lifting device is operated to connect the tower foot with the tower foot pad.

[0049] Referring to Figure 1 , 2 Since the probability of settlement of multiple tower foot installation bases connected by the same tower is extremely low, and the reference hard vertical pipe 41 and the monitoring hard vertical pipe 42 are only functionally distinguished, in step S1, the reference hard vertical pipe 41 and the monitoring hard vertical pipe 42 can be fixedly connected with two tower foot installation bases arranged on the diagonal line, respectively. In this way, assuming that the liquid level in the reference hard vertical pipe 41 and the monitoring hard vertical pipe 42 of one set of base settlement measuring device 4 does not change, and the liquid level in the reference hard vertical pipe 41 and the monitoring hard vertical pipe 42 of another set of base settlement measuring device 4 changes, it is considered that the tower foot installation base corresponding to the hard vertical pipe with the rising liquid level in the reference hard vertical pipe 41 and the monitoring hard vertical pipe 42 has settled.

[0050] The above has made a detailed description of the present application in combination with the drawings and examples. It should be understood that all possible embodiments cannot be exhaustively described in practice, and the inventive concept of the present application is illustrated by examples as much as possible. Without departing from the inventive concept of the present application and without creative labor, the skilled in the art can select and combine the technical features in the above examples, change the specific parameters, or use the existing technology in the art to replace the disclosed technical means of the present application to form specific embodiments. All the specific embodiments should belong to the content implicitly disclosed by the present application.

Claims

1. A tower foundation, characterized in that The application relates to a tower foot installation base, which is fixedly connected with vertical guide rails for conducting tower foot shearing force, and further comprises tower foot pads for connecting the tower foot installation base and tower feet in the direction of the vertical guide rails. A tower foot pushing-up device is installed on the tower foot installation base and used for pushing up the tower feet in the direction of the vertical guide rails; and a base subsidence measuring device comprises a monitoring hard vertical pipe, a reference hard vertical pipe, a gas communication hose and a liquid communication hose, two ends of the liquid communication hose are respectively connected with the lower end of the monitoring hard vertical pipe and the lower end of the reference hard vertical pipe, so as to form a U-shaped pipe, the U-shaped pipe is filled with flowable liquid, two ends of the gas communication hose are respectively connected with the upper end of the monitoring hard vertical pipe and the upper end of the reference hard vertical pipe, the communication ports of the gas communication hose and the monitoring hard vertical pipe and the communication ports of the gas communication hose and the reference hard vertical pipe are all higher than the liquid level of the flowable liquid in the U-shaped pipe, and the monitoring hard vertical pipe is fixedly connected with the tower foot installation base. The gas communication hose and the U-shaped pipe form a double-layer pipe, and the space in the liquid communication hose remains unchanged during deformation. The tower foot pushing-up device is used for unidirectionally conducting the action force of the tower foot installation base to the tower feet.

2. The tower foundation of claim 1, wherein The tower foot pushing-up device is a hydraulic jack or a stud.

3. The tower foundation of claim 1, wherein The application further relates to a tower foot installation method, which comprises the following steps:

4. The method of using a tower foundation according to any one of claims 1-3, wherein, S1, the reference hard vertical pipe is arranged at a subsidence reference position, and the liquid level in all monitoring hard vertical pipes and the liquid level in all reference hard vertical pipes are recorded. ​ S2, when the liquid level in the monitoring hard vertical pipe of the same set of foundation settlement measuring device is detected to rise, the liquid level in the reference hard vertical pipe is detected to drop, and the liquid level in at least one reference hard vertical pipe is unchanged, the tower foot installation foundation with the monitoring hard vertical pipe is determined as a settlement foundation, and the liquid level in the reference hard vertical pipe matched with the settlement foundation is recorded h A20 , monitoring the liquid level in the hard vertical pipe h A21 , and the liquid level in the reference hard vertical pipe of the set of foundation settlement measuring device in step S1 is h A10 , the liquid level in the monitoring hard vertical pipe is h A11 ; S3. Operating the tower leg push-up device to push up the tower leg push-up device mounted on the settlement base h A10 - h A20 + h A21 - h A11 .

5. The method of use of claim 4, wherein, After step S3, a step S4 is also included, of operating the tower foot push-up device to lift slightly to set a tower foot pad on the settlement base, the height of the tower foot pad being h A10 - h A20 + h A21 - h A11 operating the tower foot push-up device to connect the tower foot with the tower foot pad.

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