Unlock instant, AI-driven research and patent intelligence for your innovation.

Construction method of a road roadbed structure

A construction method and roadbed technology, which is applied in the direction of infrastructure engineering, roads, roads, etc., can solve the problems that the technical requirements for road foundation reinforcement cannot be met, and the design scheme is not feasible, so as to increase piling efficiency, prevent road surface subsidence, and improve durability. Improved effect

Active Publication Date: 2018-12-07
惠州大亚湾市政基础设施有限公司
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the deep and weak soil layer in the inland lacustrine sedimentary belt cannot meet the technical requirements for road foundation reinforcement, the previous method is usually to modify the route plan or use bridges to pass through. When the plan is difficult to change or the bridge plan is unconditionally implemented, it will lead to the entire design The impossibility of the plan

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Construction method of a road roadbed structure
  • Construction method of a road roadbed structure
  • Construction method of a road roadbed structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as Figure 1-5 As shown, a road subgrade structure includes: a base layer 1, and a plurality of pipe piles 2 vertically inserted into the base layer at the bottom, the upper part of the pipe piles vertically protrudes from the upper surface of the base layer, and side guards are arranged on both sides of the roadbed Dun 3, the part of the side shield goes deep into the base layer, and part of the cross section deep into the base layer is rectangular, and the cross section of the part above the base layer of the side shield is a right-angled trapezoid, and the inclined section of the right-angle trapezoid faces outward to form the side slope of the subgrade 4, above the base layer The first geotextile layer 5 is laid, on the first geotextile layer is a gravel cushion 6, on the gravel cushion is laid a second geotextile layer 7, on the second geotextile is a solidified fill layer 8, the top of the pipe pile and The upper end of the side cover is flush with the surfac...

Embodiment 2

[0022] A construction method for a road subgrade. The road subgrade includes: a base layer, and a plurality of pipe piles whose lower parts are vertically inserted into the base layer. , the part of the side shield goes deep into the base layer, and the part of the cross-section deep into the base layer is rectangular, and the section above the base layer of the side shield is a right-angled trapezoid, and the inclined section of the right-angle trapezoid faces outward to form the side slope of the subgrade. Above the base layer, lay the first Geotextile layer, the first geotextile layer is a gravel cushion, the second geotextile layer is laid on the gravel cushion layer, the second geotextile layer is a solidified filling layer, the upper end of the pipe pile and the upper end of the side protection Dun are connected to the solidified The surface of the filling layer is flush, and a concrete pavement base is laid on the upper end of the pipe pile and the side protection and th...

Embodiment 3

[0027] A construction method for a road subgrade structure. The road subgrade structure includes: a base layer, and a plurality of pipe piles whose lower parts are vertically inserted into the base layer. The upper parts of the pipe piles vertically protrude from the upper surface of the base layer. Hudun, the part of the side Hudun goes deep into the base layer, and the part of the cross section deep into the base layer is rectangular, and the section above the base layer of the side Hudun is in the shape of a right-angled trapezoid, and the inclined section of the right-angled trapezoid is outwardly formed to form the side slope of the subgrade. Laying above the base layer The first geotextile layer, the gravel cushion is laid on the first geotextile layer, the second geotextile layer is laid on the gravel cushion layer, the solidified filling layer is placed on the second geotextile layer, the upper end of the pipe pile and the upper end of the side protection It is flush wi...

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

PropertyMeasurementUnit
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a construction method of a road roadbed structure, The -steps are as follows: excavating the - pile location pit corresponding to the pipe piles t the foundation bottom and burying the side protection tower a- the required groove at the foundation bottom; lifting the precast pile vertically to the center of the pile location in place by the pile driver, slowly inserting the precast pile into the foundation bottom, and then driving the pile with a drop hammer, the maximum drop distance of the hammer is not more than 0.8 m, and stopping driving the pile when the pile reaches the preset depth; Hoisting- the side guard After the bottom of the groove is compacted, , the base layer is then compacted, As that upper part of the base layer is covered with the first geotextile layer, laying gravel cushion, Interfacial adhesion layer between concrete layer and asphalt to avoid direct contact between concrete layer and asphalt layer due to insufficient adhesion, and can uniformly transmit the stress generated by the traffic load, effectively solve the stress concentration phenomenon generated at the joint, and the interface adhesive of the invention is used to make theadhesive strength reach 0.54-0.58MPa.

Description

technical field [0001] The invention relates to a construction method of a road subgrade structure, belonging to the technical field of road construction. Background technique [0002] The speed, convenience and comfort of roads are one of the important symbols of a country's development. All developed countries in the world have intercity road networks. The road network needs to have the characteristics of high strength, high rigidity, good stability and durability, and the design parameters of the road must be kept within the required standard range during use. Therefore, the road is more reflected in the strict control of the deformation of the embankment. When the deep and weak soil layer in the inland lacustrine sedimentary belt cannot meet the technical requirements for road foundation reinforcement, the previous method is usually to modify the route plan or use bridges to pass through. When the plan is difficult to change or the bridge plan is unconditionally impleme...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E02D3/12
CPCC08K2201/011C08L2205/03C09D123/16C09K17/40C09D7/61E01C3/00E01C3/06E01C7/325E02D3/12E02D5/30E02D5/60E02D5/72E02D27/16E02D2300/0045C08L83/04C08L33/00C08K3/00C08K3/26C08K3/34C08K2003/2296Y02A30/60
Inventor 康颖
Owner 惠州大亚湾市政基础设施有限公司