Construction method for processing saline soil roadbed by separation layer

A construction method and technology of partitioning layers, applied in the direction of roads, roads, buildings, etc., can solve problems such as unevenness, swelling, cracking, cracking and damage on the road surface, and affecting the normal operation of vehicles, so as to improve stability and service life, The effect of reducing project cost and easy control of construction quality
CN102140771AInactive Publication Date: 2011-08-03河南省新开元路桥工程咨询有限公司
3 Cites 22 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
河南省新开元路桥工程咨询有限公司
Publication Date
2011-08-03
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to a construction method for processing a saline soil roadbed by a separation layer, comprising the following steps: the separation layer is arranged in a mode that compound geomembranes cover a gravel soil separation layer; the compound geomembranes are laid according to the width of the cross section of the roadbed; firstly, an inner compound geomembrane is laid; then an outer compound geomembrane is laid; the compound geomembranes are flatly laid and tightly adhered to the surface of the roadbed; the gravel soil separation layer is laid on the compound geomembranes and is filled and laminated by layers; the compound geomembranes cover the gravel soil separation layer; gravel soil is filled between the separation layer and the original roadbed surface layer; and the degree of compaction of the top layer is above 97%. According to the construction method disclosed by the invention, the saline soil can be effectively prevented from carrying out salt expansion, corroding and the like on the roadbed, a road surface structure layer can be prevented from damaging, the construction is convenient, the cost of engineering construction can be lowered, the curing cost is reduced, and the stability and the service life of the roadbed can be improved. The practice proves that the scheme brings a better technical effect in the saline soil roadbed construction.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a roadbed construction method, in particular to a construction method for treating saline soil roadbed with a partition layer. Background technique

[0002] Saline soil is the product of salt water migrating with groundwater in the process of soil salinization, which can damage roadbeds and structures. In highway engineering, it mainly refers to the saline soil layer with a soluble salt content of more than 0.3% within 1 meter of the surface soil layer. Due to the existence of soluble salt in the soil, the difference in the type and content of the salt will change the basic engineering properties of the soil. There are two main hazards of saline soil: salt swelling and salt erosion. Among them, the road salt swelling disease is more serious, which causes the road surface to be damaged to varying degrees every year with the seasons, causing great economic losses.

[0003] The main hazards of saline soil to the subgrade includ...

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