Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Movable feeding and constructing method for dynamic reinforcing surface layer of large area flabbiness foundation

A technology of weak foundation and moving filler, which is applied in infrastructure engineering, soil protection, construction, etc., can solve problems such as pore water cannot be freely discharged, the drainage effect of the filling layer is reduced, and the safety of the upper part of the project is affected, and the construction speed is fast. , the effect is better, the effect of shortening the construction period

Inactive Publication Date: 2008-01-23
HOHAI UNIV
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sand and gravel filler for dynamic compaction construction is a restrictive factor for projects in areas with little (lack of) sand and gravel, which will greatly increase the cost of the project
[0004] 2. Dynamic compaction on loose sand and gravel filler will inevitably leave a large number of rammed pits of different depths. The sand and gravel filler at the ramming point is embedded in a lot of soil layers and forms a dense soil column under the ramming point. The other sand and gravel fillers are less embedded in the soil layer, which makes the soil layer uneven in the plane after dynamic compaction, which affects the safety of the superstructure
[0005] 3. After the sand and gravel filler is embedded in the soft soil layer, the drainage effect of the filler layer is reduced. Under the action of the tamping force, the pore water in the soil cannot be discharged freely
[0006] 4. The traditional method of laying fillers takes a certain period of time

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
  • Movable feeding and constructing method for dynamic reinforcing surface layer of large area flabbiness foundation
  • Movable feeding and constructing method for dynamic reinforcing surface layer of large area flabbiness foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] As shown in Figure 1-5.

[0036] A large-area soft ground dynamic reinforcement surface mobile filler, which is mainly composed of a bottom layer of geotextile or geogrid 1, a geotechnical bag layer 3 and a rubber guard 4, and the geotechnical bag layer 3 can be one layer or two layers Or more than two layers, when the number of geobag layers 3 is two or more layers, the geobags of adjacent layers should be staggered and overlap each other, as shown in Figure 1. The underlying geotextile 1 requires high strength, with a weight ≥ 400g / m 3 , the warp and weft tensile strength ≥ 80kN / m, has good water permeability. It can also be replaced by geogrid or lead wire mesh with sufficient toughness and strength. The geotechnical bag 2 that forms geotechnical bag layer 3 can be designed into two kinds of specifications, and a kind of is large-scale geot...

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

A movable filler for power reinforcing the surface course of a large-area soft and weak foundation and the construction method for the movable filler is provided, which pertains to the technical field of water conservancy, harbor and construction technology. Wherein, the movable filler essentially comprises the following three structural parts: earthworker fabric or earthworker grid fabric at a base course (1), an earthworker bag course (3) and a rubber protective board (4). The method in the invention is to tamp in three times the movable filler at the surface course, which solves the problems associated with the reinforcing of foundation at area without sand and stone such as high investment and long period, etc., solves well the normal power reinforcing of a soft and weak foundation without sand and stone; the construction period is short, and the movable filler at the surface course can be used in repeated way.

Description

technical field [0001] The present invention relates to a dynamic reinforcement packing layer structure for large-area weak foundations and a construction method based on the structure, especially a movable packing that can be used to replace sand and gravel packing and a construction method using the mobile packing layer. Specifically, it relates to a large-area soft foundation dynamic reinforcement surface layer mobile filler and a construction method thereof. Background technique [0002] At present, the combination of drainage consolidation and surface dynamic compaction is often used to deal with high water content and ultra-weak cohesive soil foundations. Drainage consolidation includes vacuum dewatering, vacuum-electroosmosis combined dewatering and other construction methods. Through drainage consolidation, it can achieve the optimal water content required for surface dynamic compaction; low-energy dynamic compaction is the most typical surface dynamic compaction met...

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): E02D3/046
Inventor 刘斯宏张志铁杨静明
Owner HOHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products