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A Method of Elevation Control in Road Construction

A technology for elevation control and road construction, applied in the engineering field, can solve problems such as low work efficiency and mechanical stagnation, and achieve the effect of less error-prone, fast speed and obvious effect.

Active Publication Date: 2018-01-30
CHINA CONSTR SENVENTH ENG BUREAU INSTALLATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the work efficiency is low in the current road construction process, and there is a phenomenon of mechanical idleness waiting for work, so as to provide a method for controlling elevation in road construction that is easy to operate, fast in speed, and less prone to errors

Method used

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  • A Method of Elevation Control in Road Construction
  • A Method of Elevation Control in Road Construction
  • A Method of Elevation Control in Road Construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The present invention comprises the following steps: 1. determine the embankment width 10m that needs to be filled, and prepare a long rope 2 with a length of (10+0.5) m; , 10.25m respectively mark R0~R4, ②Set two elevation control side piles 3 on both sides of the subgrade, the two elevation control side piles are arranged symmetrically with the center axis of the subgrade as a group; ③according to the double slope value of 2% designed for each layer of subgrade and the subgrade width of 10m, the virtual paving elevation of the subgrade center M of this layer is calculated to be 0.1m; ④Fix the two ends of the long rope to the two elevation control sides On the pile, the long rope is perpendicular to the subgrade profile 6, the height of the long rope 2 from the horizon 1 is (0.1+0.2) m, and the distance between point R on the long rope and the middle point N of the long rope is b, then the distance at point R is The design height of the subgrade surface is c=(b*i%+h); ...

Embodiment 2

[0042]The present invention comprises the following steps: 1. determine the embankment width 16m that needs to be filled, and prepare a long rope 2 with a length of (16+0.4) m; , 8.2m, 10.2m, 12.2m, 14.2m, and 16.2m respectively R0~R8, ②Set two elevation control side piles 3 on both sides of the subgrade, and the two elevation control side piles are centered on the central axis of the subgrade The center line is symmetrically set, and each symmetrically set two elevation control side piles is a group; ③ According to the designed double slope value of each layer of roadbed 2% and the roadbed width of 16m, the virtual paving elevation of the center M of the roadbed of this layer is calculated as 0.32m ; ④ Fix the two ends of the long rope on two elevation control side piles respectively, the long rope is perpendicular to the subgrade profile 6, the height of the long rope 2 from the horizon 1 is (0.32+0.3) m, and the distance between point R on the long rope is set The distance ...

Embodiment 3

[0047] The present invention comprises the following steps: 1. determine the subgrade width 12m that needs to be filled, and prepare a long rope 2 with a length of (12+0.6) m; , 12.3m respectively mark R0~R4, ② Set up two elevation control side piles 3 on both sides of the subgrade, the two elevation control side piles are arranged symmetrically with the central axis of the subgrade as the center line, and each symmetrically arranged two elevation control side piles ③According to the double slope value of 2% designed for each layer of subgrade and the width of the subgrade of 12m, the virtual pavement elevation of the subgrade center M of this layer is calculated as 0.24m; ④Fix the two ends of the long rope to the two elevation control sides On the pile, the long rope is perpendicular to the subgrade profile 6, the height of the long rope 2 from the horizon 1 is (0.24+0.1) m, and the distance between point R on the long rope and the middle point N of the long rope is b, then th...

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Abstract

The invention discloses an elevation control method in road construction in order to solve the technical problems that in an existing road construction process, work efficiency is low and the phenomena of idling and waiting of machinery exist. The method includes the following steps that firstly, the roadbed width L is determined, and a long rope is prepared; secondly, two elevation control side piles are arranged on the two sides of a roadbed; thirdly, according to the double-slope value i% and the roadbed width L of the design of each layer of the roadbed, the virtual paving elevation H of the roadbed center M of the layer is worked out; fourthly, the two ends of the long rope are fixed to the two elevation control side piles, the distance between a point R on the long rope and the midpoint N of the long rope is b, and the design height from the point R to the surface of the roadbed is c; and fifthly, the difference between the actual height x from the point R to the surface of the roadbed and the design height c is y, and the concrete numerical value of y is worked out and serves as the lifting amount or the excavating amount. After the technical scheme is adopted for the elevation control method in road construction, the speed is high, errors are unlikely to occur, investment of survey crews, workers and measurement instruments is reduced, and operation is easy.

Description

technical field [0001] The invention relates to the field of engineering technology, in particular to a method for controlling elevation during road construction with simple operation. Background technique [0002] Road surface roughness is an important index to evaluate the performance of the road surface, which directly affects the driving quality of the vehicle on the road surface and the full play of the basic functions of the road. Therefore, the improvement and improvement of road surface roughness has been regarded as a key technology in road construction and has been paid attention to and valued by road construction. The smoothness directly reflects the driving comfort of the vehicle and the safety and service life of the road surface. If the road roughness is not up to standard, it will increase the fuel consumption, lubricating oil consumption, tire consumption and wear of the vehicle's parts, thus greatly Increased operating costs of the vehicle. Therefore, it i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/01
CPCE01C23/01
Inventor 张军刘波黄海杨维英王颖蒋佳佳
Owner CHINA CONSTR SENVENTH ENG BUREAU INSTALLATION ENG