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Granular material pile construction process for treating highway diseases

A kind of construction technology, granular material pile technology, applied in the direction of roads, roads, sheet pile walls, etc., can solve problems affecting road opening to traffic, and achieve the effect of flexible construction equipment

Pending Publication Date: 2020-12-04
河北鸿森公路工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned traditional technology, to provide a kind of granular material pile construction technology for treating road diseases, and to solve the drawbacks that the existing road construction needs to completely close the road, which seriously affects the opening of the road

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: a kind of granular material pile construction technique of treating road disease, comprises the following steps:

[0031] A. Measure and set out; arrange the pile position plane position map according to the design and construction drawing; measure and place the points of the granular piles, and mark the points to determine the depth of the pile bottom relative to the ground;

[0032] B. Drilling: according to the measured pile position, align the drill tip center of the drilling rig with the middle point of the pile position, and adjust the level of the drilling rig and the verticality of the drill pipe through the double-sided indicator hanging on the side of the drill pipe guide frame; During the process, before each pile is constructed, technicians will check the centering and verticality of each pile, and start drilling after meeting the requirements. Observe the double-sided indicators at any time to ensure that the drilling rig does not deviate.

[...

Embodiment 2

[0047] Embodiment 2: a kind of granular material pile construction technique of treating road disease, comprises the following steps:

[0048] A. Measure and stake out; lay out the plane position map of the pile position according to the design and construction drawing; measure and place the point position of the granular material pile, mark the point position, and determine the depth of the pile bottom relative to the ground;

[0049] B. Drilling: according to the measured pile position, align the drill tip center of the drilling rig with the middle point of the pile position, and adjust the level of the drilling rig and the verticality of the drill pipe through the double-sided indicator hanging on the side of the drill pipe guide frame; During the process, before the construction of each pile, the technicians will check the pile position and verticality, and then start drilling after meeting the requirements, and observe the double-sided indicators at any time to ensure that...

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Abstract

The invention belongs to the technical field of highway pavement construction, and provides a granular material pile construction process for treating highway diseases, which comprises the following steps of: A, measuring and setting out; B, drilling holes; C, mixing; sieving the sand material, mixing the cement and the sand-gravel material according to a weight ratio of 1: 4: 1: 0.01, and forminggranules after mixing; D, backfilling; ramming and expanding to form a pile, wherein the hole is backfilled with the mixed aggregate layer by layer in a quantitative mode, and the backfilling thickness is 50-100 cm; tamping the granules layer by layer by using a rammer; F, hole sealing; cement concrete is adopted for hole sealing till the pavement is flush; G, leveling the pavement; paving asphalt concrete on the pavement with a certain sinking length, so that the sinking pavement is leveled with other pavements; and H, detection; after construction is completed, arranging settlement observation points on the cross section of the road surface, observation is conducted once every 24 hours through a level gauge, and the defect that road traffic is seriously influenced due to the fact that an existing road construction needs to completely close a road is overcome.

Description

technical field [0001] The invention relates to the technical field of highway pavement construction, in particular to a construction technique of granular material piles for treating road diseases. Background technique [0002] With the continuous development of the urbanization process, the mileage of the expressway is increasing; however, various diseases also appear with the increase of the opening time, among which the road surface settlement is the most common disease on the roadbed filling section. One, the subsidence is serious or even partially accompanied by severe longitudinal cracks, which seriously affects the driving safety and the safe operation of the road. [0003] In the cement aggregate pile composite subgrade, the cement aggregate pile acts as a vertical reinforcement, and its strength directly determines the bearing capacity of the composite foundation. Cement aggregate piles are mainly used to treat the subsidence section of the roadbed with high water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04E02D5/36C04B28/02C04B111/72
CPCC04B28/02C04B2111/0075C04B2111/72E01C3/04E02D5/36E02D2300/002C04B14/02C04B14/06C04B2103/0068
Inventor 温亮辉白冬晓王树信郝欣
Owner 河北鸿森公路工程技术有限公司
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