CN206233222U - The jet thrust of system is cleaved for vacuum preloading air pressure - Google Patents
The jet thrust of system is cleaved for vacuum preloading air pressure Download PDFInfo
- Publication number
- CN206233222U CN206233222U CN201621275619.4U CN201621275619U CN206233222U CN 206233222 U CN206233222 U CN 206233222U CN 201621275619 U CN201621275619 U CN 201621275619U CN 206233222 U CN206233222 U CN 206233222U
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- CN
- China
- Prior art keywords
- jet thrust
- main body
- air pressure
- vacuum preloading
- cleaved
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
A kind of jet thrust that system is cleaved for vacuum preloading air pressure of the utility model, crossover sub 2 including jet thrust main body 1 and for main body 1 to be connected with air injection pipe 3, the front end of described jet thrust main body 1 is taper, hole 4 is distributed in jet thrust main body 1, described crossover sub 2 is oblate cylindricality, and centre is offered for accommodating the through hole that air injection pipe 3 passes through, and side perimeters are placed with multiple circular holes, circular hole is used for through shank of bolt 5, and the front end of each shank of bolt 5 is fixedly connected with baffler.The utility model has the advantages that efficiency high.
Description
Technical field
The utility model is related to be cleaved for vacuum preloading air pressure the jet thrust of system.
Background technology
The consolidation effect of Vacuum Preloading Method for Consolidation of Soft Soil Foundation, depends primarily on the vacuum and vertical drainage under vacuum diaphragm
The regularity of distribution of the negative pressure in system.Influenceed by well resistance, the negative pore pressure of vertical drainage system has certain decay along depth direction,
Many experts have done substantial amounts of experimental study for reinforcement depth, and Li little He (2002) is proposed in god at for 22m, soft soil foundation
Sedimentation is almost nil, changes without sedimentation in below depth 17m；Wei Bo (2003) uses vacuum-heap to river in Zhejiang Province-Tai-temperature highway
Soil sample before and after load combined precompressed soft soil foundation is analyzed, and consolidation effect is obvious in the range of depth 10m, 18m
It is following without consolidation effect., for vacuum preloading soft soil foundation, reinforcement depth is often only at 0~8 meter for cycle (2008).
In addition, vacuum method consolidation time is long, and settlement after construction is big, often influences the duration of construction, increases engineering
Cost.《Vacuum preloading technical regulation》(JTS 147-2-2009) points out consolidation of soft ground improved by vacuum preloading degree
80% need to be reached.A large amount of engineerings are to meet this requirement, and the pumpdown time is more long.For example, Liu Hanlong (2006) for Hangzhoupro-gold-
Thoroughfare highway carries out vacuum pre-press reinforcing and lasts 8 months.It is pre- that Sun Liqiang et al. (2010) Tianjin Binhai barged-in fill carries out vacuum
Pressure, the pumpdown time is up to 275 days.
Air pressure splitting combined vacuum ground preloading deep layer weak soil is proposed to solve the limitation of vacuum preloading, Liu Songyu et al.
Ground.Mainly by single hole pipe toward gas injection in soil so that the soil body is cleaved, and substantial amounts of crackle, and deep layer are produced in the soil body
The osmotic pressure of the soil body becomes big, accelerates the water of the soil body to be discharged from drainage system.
Although although single hole pipe inflating method can to a certain extent solve the consolidation effect of deep layer weak soil, existing many innings
It is sex-limited, mainly show following two aspects
(1) service behaviour aspect：Single hole pipe insufflation is only locally producing certain effect, it is difficult to be produced in larger scope
Raw influence, in work progress, when single hole pipe insertion depth is larger, often causes that pipe is blocked by weak soil, leads to not note
Gas, consolidation effect is poor, and drain bar silting problem not can solve still.
(2) economic and practical aspect：Single hole pipe gas injection coverage is smaller, it is necessary to substantial amounts of plastic draining board, increases engineering
Budget.
Utility model content
Regarding to the issue above, the purpose of this utility model is to overcome the deficiencies in the prior art, is produced with reference to weak soil crack damage
Life is managed and Technical Characteristics of Mild Clay, there is provided one kind can make with process is simple and true suitable for deep layer soft soil foundation (more than 10 meters)
Empty precompressed air pressure cleaves the jet thrust of system.The utility model can improve deep soft soil foundation permeability, accelerate deep layer weak soil
Ground pore pressure dissipates, and accelerates consolidation rate, shortens consolidation time, effectively controls settlement after construction.Technical side of the present utility model
Case is as follows：
It is a kind of for vacuum preloading air pressure cleave system jet thrust, including jet thrust main body 1 and for by main body 1 with note
The crossover sub 2 that tracheae 3 is connected, it is characterised in that the front end of described jet thrust main body 1 is taper, in jet thrust main body 1
Upper distribution hole 4, described crossover sub 2 is oblate cylindricality, and centre is offered for accommodating the through hole that air injection pipe 3 passes through,
Side perimeters are placed with multiple circular holes, and circular hole is used for through shank of bolt 5, and the front end of each shank of bolt 5 is fixedly connected with baffler.
The utility model can well solve deep layer soft soil foundation vacuum preconsolidation due to using above technical method
Effect is poor, drain bar silting the problems such as, there is advantages below compared with single hole pipe gas injection：
(1) facilitate air injection pipe to insert deep layer soft soil foundation, the mouth of pipe should not be blocked, in work progress, gas injection radiation scope adds
Greatly, consolidation effect substantially, different tube diameters air injection pipe can be conveniently selected by crossover sub, reduce construction costs.
(2) the material selection stainless steel of the shower nozzle, crossover sub at shower nozzle is applied to the air injection pipe in various apertures, can be with
The mouth of pipe with the injecting gas boosting at scene is seamlessly connected, it is not necessary to complicated processing, easy for installation.
Brief description of the drawings
Fig. 1 is the overall structure figure of the jet thrust for vacuum preloading air pressure splitting system of the present utility model.
Fig. 2 is the jet thrust schematic three dimensional views that system is cleaved for vacuum preloading air pressure of the present utility model
Label declaration in figure：1 jet thrust main body；2 crossover subs；3 air injection pipes；4 a diameter of 10mm holes；5 shanks of bolt；6
Nut.
Specific embodiment
The utility model is illustrated with reference to the accompanying drawings and examples.
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of jet thrust that system is cleaved for vacuum preloading air pressure, specifically
Including jet thrust main body 1, crossover sub 2, air injection pipe 3, it is necessary to by jet thrust master during vacuum method treatment deep layer soft soil foundation
Body 1 is connected to form shower nozzle entirety with crossover sub 2, and a diameter of 10mm cavities 4 are provided with shower nozzle 1, is then connected with air injection pipe 3；
The crossover sub 2 of the jet thrust of vacuum preloading air pressure splitting system, is tightened by the shank of bolt 5 of nut 6, and the front portion of shank of bolt 5 is consolidated
Surely baffler (being not drawn into figure) is connected with, the purpose of board clamping air injection pipe 3 is intercepted so as to reach.
Due to the simplicity and the standard universal of all parts of structure, air pressure splitting effect and other mechanics of the device
Effect can be analyzed demonstration conveniently by existing business finite element analysis software, such that it is able to facilitate engineering technology people
According to different actual requirement of engineering, flexibly selection different type stainless steel air pressure splitting shower nozzle optimizes design to member.
Claims (1)
1. it is a kind of for vacuum preloading air pressure cleave system jet thrust, including jet thrust main body (1) and for by main body (1) with
The crossover sub (2) that air injection pipe (3) is connected, it is characterised in that the front end of described jet thrust main body (1) is taper, in spray
Hole (4) is distributed on gas head main body (1), described crossover sub (2) is oblate cylindricality, and centre is offered for accommodating gas injection
The through hole that pipe (3) passes through, side perimeters are placed with multiple circular holes, and circular hole is used for through shank of bolt (5), each shank of bolt (5)
Front end is fixedly connected with baffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621275619.4U CN206233222U (en) | 2016-11-25 | 2016-11-25 | The jet thrust of system is cleaved for vacuum preloading air pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621275619.4U CN206233222U (en) | 2016-11-25 | 2016-11-25 | The jet thrust of system is cleaved for vacuum preloading air pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206233222U true CN206233222U (en) | 2017-06-09 |
Family
ID=58980071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621275619.4U Withdrawn - After Issue CN206233222U (en) | 2016-11-25 | 2016-11-25 | The jet thrust of system is cleaved for vacuum preloading air pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206233222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436685A (en) * | 2016-11-25 | 2017-02-22 | 天津大学 | Gas spraying head for vacuum pre-loading gas pressure splitting system |
| CN107806079A (en) * | 2017-09-28 | 2018-03-16 | 无锡厚发自动化设备有限公司 | A kind of reinforced soft soil ground device |
-
2016
- 2016-11-25 CN CN201621275619.4U patent/CN206233222U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436685A (en) * | 2016-11-25 | 2017-02-22 | 天津大学 | Gas spraying head for vacuum pre-loading gas pressure splitting system |
| CN106436685B (en) * | 2016-11-25 | 2019-02-15 | 天津大学 | Jet thrust for vacuum preloading air pressure splitting system |
| CN107806079A (en) * | 2017-09-28 | 2018-03-16 | 无锡厚发自动化设备有限公司 | A kind of reinforced soft soil ground device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170609 Effective date of abandoning: 20190215 |
|
| AV01 | Patent right actively abandoned |