Method for manufacturing low-disturbance melt-resistant frozen soil foundation of transmission tower

A technology for a power pole and tower and a manufacturing method, which is applied in the direction of infrastructure engineering, construction, etc., can solve the problems of less disclosure, increased construction period and investment, and no suitable feasible solution, and achieves good perfusion quality, reduced construction cost, and reliable construction quality. Effect

Inactive Publication Date: 2012-10-17
XINJIANG ELECTRIC POWER DESIGN INST
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the influence of frost heave and thaw settlement on the foundation on the foundation must be considered when making the foundation in the cold and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] The present invention will be further described below in combination with specific embodiments.

[0007] Use low-disturbance excavation at the pile site to form a hole, expand the hole at the bottom of the pile hole, then place a reinforcement cage, and pour concrete to build the foundation.

[0008] Avoid the disturbance of the permafrost caused by the excavation of large-scale construction machinery. Low-disturbance excavation into holes can be manually dug into piles with the assistance of necessary tools and equipment.

[0009] Auxiliary equipment that can be controlled and selected includes: wind picks, shovels, iron picks, electric hoists, hand wheels, soil lifting cylinders, corrugated steel formwork, blowers, air supply pipes, plugging tools, submersible pumps, etc.

[0010] The technological process of using cast-in-place concrete segmental retaining wall forming hole piles:

[0011] Set-out positioning, earthwork excavation, measurement control, straight set...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method for manufacturing a low-disturbance melt-resistant frozen soil foundation of a transmission tower. The method comprises the following steps of: drilling a pile position by utilizing low disturbance, reaming the bottom end of the pile hole, placing a steel reinforcement cage and filling concrete to construct a foundation. The method provided by the invention is mature and is easy to operate by utilizing the low disturbance for drilling the pile hole, reaming and filling the concrete to form a pile; an emptying machine tool is simple; the steps of the method can be simultaneously carried out according to the requirements of a construction schedule in groups; a plurality of pile holes are synchronously constructed so that the construction period is shorted, the foundation is convenient to clean, soft soil at the bottom of the pile holes can be clearly cleaned, the construction quality is reliable, and the walls and the bottoms of the pile holes are convenient to check; a quality situation of soil at the bottoms of the pile holes can be checked, the diameter and the depth of the pile can change along with a bearing force situation, and the pile end can be enlarged manually so that the large bearing force can be obtained, the requirement on one pile with one column is met, the length of a construction line is shortened, and the construction cost and the construction period are remarkably reduced; and in addition, when each section of concrete is filled in the pile body, the concrete can be immediately tamped and the filling quality of the concrete is good.

Description

technical field [0001] The invention relates to a fabrication and construction method in the technical field of permafrost foundations in part E02D of the International Patent Classification, in particular to a fabrication method for low-disturbance and anti-thaw foundations on permafrost for power poles and towers. Background technique [0002] At present, power lines often need to cross the permafrost zone, and permafrost refers to the rock and soil that freezes below zero degrees Celsius and contains ice. With existing technologies, such as digging holes with mechanical equipment, installing prefabricated pile foundations, and then backfilling them, etc. process, the foundation of overhead transmission lines in permafrost areas is often affected by the frost heaving and thawing of the foundation soil to varying degrees. Some line foundations have just been completed, but the upper tower structure has not yet been assembled due to frost heaving and thawing. The foundation h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E02D27/35E02D27/42
Inventor 朱江郭永胜徐博邹宗宪满国民薛英王永华董天元陈刚
Owner XINJIANG ELECTRIC POWER DESIGN INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap