Deep thick muddy soft soil layer vacuum pipe well precipitation construction structure and construction method thereof

A silt, vacuum tube technology, applied in infrastructure engineering, construction, etc., can solve the problems of high water content, high construction risk, and difficulty in large-scale investment in large-scale equipment, and achieve the effect of reducing water content.

Pending Publication Date: 2017-12-19
POWERCHINA RAILWAY CONSTR +1
View PDF7 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In many coastal or inland cities where subways are built, there are extensive land-sea interactive sedimentary strata, which are specifically manifested in the widespread existence of silty soft soil layers. The silty soil layers have high water content, thixotropy, rheology, high compressibility, Due to the characteristics of low strength, low water permeability

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
  • Deep thick muddy soft soil layer vacuum pipe well precipitation construction structure and construction method thereof
  • Deep thick muddy soft soil layer vacuum pipe well precipitation construction structure and construction method thereof
  • Deep thick muddy soft soil layer vacuum pipe well precipitation construction structure and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention is further described below in conjunction with accompanying drawing and embodiment:

[0041] Such as Figure 1-3 As shown, a vacuum tube well dewatering construction structure in a deep muddy soft soil layer includes a dewatering well, the upper end of the dewatering well is covered with a steel pipe 31, the outer side of the steel pipe 31 is filled with cohesive soil 21, and the lower end of the dewatering well is covered with Steel pipe filter pipe 32, the outer side of steel pipe filter pipe 32 is filled with medium and coarse sand filter material 22, and the outer side of steel pipe filter pipe 32 is wrapped with 80 mesh filter screens.

[0042] Both the steel pipe real pipe 31 and the steel pipe filter pipe 32 are steel pipes with a diameter of 273 mm and a wall thickness ≥ 3.0 mm. In this embodiment, the steel pipe filter pipe 32 has a height of 9m.

[0043] The top of the dewatering well is sealed, and the bottom of the dewatering well is ...

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
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a deep thick muddy soft soil layer vacuum pipe well precipitation construction structure in the field of engineering construction and a construction method thereof. The structure comprises a precipitation well, the upper end of the inner side of the precipitation well is sleeved with a solid steel pipe, the outer side of the solid steel pipe is filled with cohesive soil, the lower end of the precipitation well is sleeved with a steel pipe filter pipe, the outer side of the steel pipe filter pipe is filled with a medium-coarse sand filter material, the top end of the precipitation well is sealed, the bottom end of the precipitation well is filled with aggregate to form a filter layer, a sinking pump is arranged in the precipitation well and is connected with a vacuum pump, and a draining pipe is arranged at the tail end of the vacuum pump. The method comprises the steps of lofting before construction, drilling construction, well pipe machining and putting, precipitation construction, precipitation pipe well closing and the like. The muddy layer water containing rate is effectively reduced, through vacuum precipitation, the muddy water containing rate is reduced to about 20%.

Description

technical field [0001] The invention relates to the field of engineering construction, in particular to a vacuum tube well dewatering construction structure and construction method of a deep and thick muddy soft soil layer open-cut foundation pit vacuum tube well. Background technique [0002] In many coastal or inland cities where subways are built, there are extensive land-sea interactive sedimentary strata, which are specifically manifested in the widespread existence of silty soft soil layers. The silty soil layers have high water content, thixotropy, rheology, high compressibility, Due to the characteristics of low strength, low water permeability and unevenness, the excavation of deep foundation pits in this type of soil layer is often affected by various adverse characteristics of silty soft soil, it is difficult to invest large-scale equipment, and it is difficult to adopt direct excavation. Excavation by means of installation and other methods, the construction effi...

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
IPC IPC(8): E02D19/10
CPCE02D19/10
Inventor 梁兴朴雷振赵南杰陈皓东陈天平夏强李福千刘晨
Owner POWERCHINA RAILWAY CONSTR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap