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A transmission tower pile foundation with adjustable anti-pulling and anti-extrusion properties

A transmission tower and anti-pulling technology, applied in infrastructure engineering, construction, protection devices, etc., can solve the problem of increasing the inclination of the transmission tower pile foundation to the inside of the turn, reducing the reliability of the transmission tower pile foundation, and making it difficult to ensure the safety of power grid operation. and other problems, to achieve the effect of saving maintenance costs, saving construction period and shortening construction period

Active Publication Date: 2022-08-02
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing transmission tower pile foundations cannot adjust their own pullout and extrusion resistance properties according to different geological conditions, so as to adapt to the pullout and extrusion resistance of transmission tower pile foundations under different geological conditions. The performance requirements reduce the reliability of the pile foundation of the transmission tower, which in turn increases the probability of the pile foundation of the transmission tower tilting to the inside of the turn, which in turn increases the probability of an electric accident caused by the pulling and breaking of the transmission cable, which is difficult to guarantee Grid operation security

Method used

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  • A transmission tower pile foundation with adjustable anti-pulling and anti-extrusion properties
  • A transmission tower pile foundation with adjustable anti-pulling and anti-extrusion properties
  • A transmission tower pile foundation with adjustable anti-pulling and anti-extrusion properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like Figure 1-4 As shown, a transmission tower pile foundation with adjustable anti-pulling and anti-extrusion performance includes a support cylinder 1, a concrete pier 2, a fastener 3, a sealing layer, a connecting pipe 5, an air pressure adjusting device, and a blocking member.

[0046] The upper end surface of the support cylinder 1 is open.

[0047] Fasteners 3 are embedded in the concrete pier 2. The fasteners are anchor bolts that are convenient for the staff to obtain materials. The upper part of the anchor bolts exposes the upper end face of the concrete pier 2. The anchor bolts are used to fix the lower end of the transmission tower. On the upper end face of concrete pier 2.

[0048] The concrete pier 2 is installed in the support cylinder 1 , and the concrete pier 2 is provided with a ventilation hole 201 . For the convenience of description, the cavity in the support cylinder 1 located between the concrete pier 2 and the cylinder bottom of the support cyl...

Embodiment 2

[0059] The present embodiment 2 makes the following improvements on the basis of embodiment 1:

[0060] like Figure 5-9 As shown, the second embodiment no longer uses the rubber plug 7 as the blocking member, but uses the one-way valve 8 as the blocking member. The check valve 8 is installed in the vent hole 201 . The one-way valve 8 is a common valve body 801 in the market, which is convenient to obtain. The one-way valve 8 includes a valve body 801 and a valve core 802 installed in the valve body 801. When there is no external force acting on the valve core 802, the valve core 802 is pushed up by the elastic member 803 installed in the one-way valve 8 to close the valve body At the inlet 8011 of 801, the elastic member 803 adopts a spring with convenient material. When the valve core 802 is squeezed by an external force, the valve core 802 overcomes the elastic force of the elastic member 803 to open the inlet 8011, and the fluid can flow through the inlet 8011 of the val...

Embodiment 3

[0067] The present embodiment 3 makes the following improvements on the basis of embodiment 2:

[0068] like Figure 10 As shown, the vent hole 201 is provided with a mounting pipe 10, and the mounting pipe 10 is fixed in the inner wall of the vent hole 201 by screws. The one-way valve 8 is arranged in the installation pipe 10 , and the valve body 801 of the one-way valve 8 is welded and fixed to the inner wall of the installation pipe 10 . The inner wall of the installation pipe 10 is provided with internal threads, and the outer pipe wall of the end of the connecting pipe 5 close to the concrete pier 2 is provided with external threads.

[0069] When connecting the connecting pipe 5 and the cavity between the concrete pier 2 and the bottom of the supporting cylinder 1, the staff can directly screw the end of the connecting pipe 5 with the connecting plate 9 into the installation pipe 10 until it is at the connecting point. It is sufficient that the pressing protrusion 902 ...

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Abstract

The invention discloses a transmission iron tower pile foundation with adjustable anti-pulling and anti-extrusion properties, comprising a support cylinder with an open upper end face and a concrete pier installed in the support cylinder. The upper part of the firmware is exposed on the upper end face of the concrete pier. The concrete pier is provided with a sealing layer on the side wall close to the support cylinder. The concrete pier is connected with the air pressure regulating device through the connecting pipe, and the connecting pipe is connected with the support cylinder through the ventilation hole provided in the concrete pier. The inner cavity between the concrete pier and the cylinder bottom of the supporting cylinder is communicated, and the concrete pier is provided with a blocking member for matching with the ventilation hole. The invention can adjust the pull-out resistance and pressure resistance of the pile foundation of the power transmission tower.

Description

technical field [0001] The invention relates to the technical field of transmission tower installation, in particular to a transmission tower pile foundation with adjustable anti-pulling and anti-extrusion properties. Background technique [0002] The transmission tower pile foundation is an important part of the transmission line, and its function is to smoothly and smoothly transmit the force of the transmission tower on the transmission tower pile foundation to the foundation. The foundation of the transmission tower pile is a concrete pile with pre-embedded fasteners (usually using anchor bolts as fasteners). to realize the installation of each outrigger and the pile foundation of the transmission tower. [0003] Along the entire transmission line, there are often turning positions. For the transmission tower located at the turning position, the pile foundation of the transmission tower located on the inside of the turn will be subject to the downward pressure from the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/42E02D27/12E02D31/00
CPCE02D27/42E02D27/12E02D31/00
Inventor 陈相家何春晖姜利军张彩红孙启刚杨夯孙永鑫谭晓哲刘振国王龙何树生马力李倩
Owner RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
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