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

A replacement method for railway subgrade filler

A technology of railway subgrade and subgrade filling, which is applied in the direction of road, soil protection, infrastructure engineering, etc., and can solve problems such as poor effectiveness and limited time for high-speed railway maintenance operations

Active Publication Date: 2021-07-13
北京华铁时代建设发展有限公司 +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although these remediation methods can achieve certain effects, their effectiveness is poor, and the maintenance time of high-speed railways is limited, and they have not fundamentally solved the problem of freezing damage on railway subgrades.

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
  • A replacement method for railway subgrade filler
  • A replacement method for railway subgrade filler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention is introduced below by accompanying drawing.

[0026] According to the invention, a filling replacement method for railway subgrade is provided. The railway subgrade filler replacement method adopts the method of horizontal subgrade filler replacement, and replaces the subgrade filler in a specific area where freezing damage occurs, and the replacement material is a material that does not cause freezing damage, thereby effectively enhancing the frost damage prevention effect of the railway subgrade. This railway subgrade filler replacement method has the advantages of strong pertinence and high effectiveness.

[0027] According to the replacement method for railway subgrade filler of the present invention, it comprises the following steps.

[0028] First of all, pre-construction preparations are carried out. figure 1 A longitudinal view showing a railway roadbed 120 in which the roadbed filler is replaced by the replacement method for railway roa...

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 provides a replacement method for railway subgrade filler, comprising the following steps: step 1: prepare before construction, and determine the location of the construction hole; step 2: build a construction platform at the location of the construction hole, and The digging equipment for digging the subgrade filler is placed at the construction platform, and the digging equipment includes casings for unearthed; Step 3: start the digging equipment to drill into the construction hole, drill out and replace hole; step 4: replace the subgrade filler, and backfill in layers; step 5: set the seepage blind pipe, and restore the construction site, wherein, in step 3, the casing is gradually jacked, and the drilling of the excavation equipment The output of construction and excavated filling gravel is carried out simultaneously.

Description

technical field [0001] The invention relates to the technical field of railway roadbed maintenance engineering, in particular to a replacement method for railway roadbed fillers. Background technique [0002] In recent years, with the rapid development of high-speed railways, my country has built large-scale high-speed railways, which has brought great convenience to people's travel. However, during the operation of high-speed railways, there will be some disease problems in the high-speed railway subgrade. In particular, there will be a series of frost heave problems in the culvert subgrade of railway routes, and the subgrade in seasonal frozen soil areas will also suffer from frost damage. For example, there are problems such as low temperature, water seepage in the subgrade bed, high moisture content of the subgrade, poor soil quality, etc., resulting in unstable subgrade structure, seriously affecting railway traffic, and bringing safety hazards to the operation of high...

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 Patents(China)
IPC IPC(8): E01B2/00E02D3/00E02D3/10
CPCE01B2/00E02D3/00E02D3/10
Inventor 谢良生王立伟叶阳生蔡德钩姚建平陈锋闫宏业
Owner 北京华铁时代建设发展有限公司