CN105887903B - Integral type well point plastic strip vacuum system manifold - Google Patents
Integral type well point plastic strip vacuum system manifold Download PDFInfo
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- CN105887903B CN105887903B CN201610379659.1A CN201610379659A CN105887903B CN 105887903 B CN105887903 B CN 105887903B CN 201610379659 A CN201610379659 A CN 201610379659A CN 105887903 B CN105887903 B CN 105887903B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 71
- 238000001556 precipitation Methods 0.000 description 39
- 239000002689 soil Substances 0.000 description 38
- 238000012545 processing Methods 0.000 description 35
- 238000011068 loading method Methods 0.000 description 30
- 239000003673 groundwater Substances 0.000 description 26
- 238000004062 sedimentation Methods 0.000 description 24
- 230000003014 reinforcing effect Effects 0.000 description 18
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Soil Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
A kind of integral type well point plastic strip vacuum system manifold of the present invention, it is characterized in that it includes transverse tube and longitudinal tubule (L tubule), the transverse tube is segmented by multiple transverse tubes and more logical linkage section is formed by connecting, it is attached between two neighboring transverse tube segmentation by more logical linkage section, transverse tube segmentation includes a necking section and straight pipe, the distance of the distance of the necking section that same transverse tube is segmented to longitudinal tubule (L tubule) than straight pipe to longitudinal tubule (L tubule).The present invention has the advantages that easy to operate, of low cost, construction effect is good.
Description
Technical field
The present invention relates to a kind of Treatment Methods of Soft Ground, more particularly to a kind of integral type well point plastic strip vacuum system are total
Pipe.
Background technology
According to《Code for design of building》（GB5007-2011）7.1.1 provide, soft foundation is meant mainly by becoming silted up
The ground that mud, muck soil, rinse fill, miscellaneous fill or other high-compressibility soil layers are formed.Building is carried out on soft foundation to apply
, it is necessary to first carry out consolidation process to soft foundation, conventional consolidation processing methods have following several before work：
First, conventional vacuum ground preloading, conventional vacuum ground preloading " land and river sea lakes and marhshes domain is underwater " soft soil foundation are equal
Need to be laid with diaphragm seal, sand bedding course, but have the following disadvantages：
1st, large area diaphragm seal difficulty of construction is big, and land vacuum preloading needs a large amount of manually plastic film mulch mechanization degrees low, especially
It is that underwater vacuum precompression diaphragm seal is more difficult to construct；
2nd, pvc seals the low easily damaged gas leakage of film-strength, two layers of diaphragm seal, one layer of geotextiles cost height, searches air leakage point
Difficulty, sealing effect are bad；
3rd, substantial amounts of pvc diaphragm seals are not environmentally；
4th, earth's surface is maximum up to negative pressure 80kPa under film, and negative pressure is fast toward soil layer deep slippages, general every toward deep transmission
Rice loss negative pressure 10kPa or so, the following soft soil vacuum preloading effect of 8 to 10 meters or so of earth's surface is poor, and effective reinforcement depth is shallow；
5th, the in situ table of loading surface or backfill earth's surface, even if top layer diaphragm seal is air tight, the stabilization zone surrounding shallow-layer soil body
Slow gas leakage can not still be ignored, and in the case of especially 90 days or so long time loadings, decline in level of ground water and add to a certain extent
Gu area's surrounding shallow soil body drain gas degree more causes anxiety.
2nd, follow-on vacuum pre-press reinforcing has the following disadvantages：
1st, go sand bedding course to be changed to the direct-connected plastic strip plate mode of hand-type connector, change indirect transfer negative pressure directly to transmit negative pressure mould
Formula, but it stills need diaphragm seal, and peak suction loading surface is still in earth's surface；
2nd, serous fluid of dredger fill forms sealant or the direct-connected plastic strip of vacuum manifold and buries 1.5 meters or so or 3 meters of vacuum chimney filter underground
Left and right sides plastic uptake arranges replacement seal film, and vacuum preloading right-left seal at 10 days initial stages is preferable, but as serous fluid of dredger fill dehydration consolidation is opened
Split, level of ground water rapid decrease, sealing effect is had a greatly reduced quality；
3rd, reclaim fields from the sea ultra-soft soil can not mechanical execution, first do artificial plate shallow-layer plastic strip vacuum preloading, treat that its ground is strong
Degree is adapted to mechanical execution, then does deep vacuum precompressed, reclaim fields from the sea ultra-soft soil vacuum preloading and conventional vacuum precompressed principle technique
Almost consistent, the simply manually simple difference with machinery, process is more complicated, and cost is high, efficiency is low；
90 days underground water level decreasings of vacuum preloading are typically only 1 ~ 3 meter, and practical application generally handles deep soft soil foundation, shallow
Layer is ineffective, reinforces groundwork bearing capacity in theory and is generally 80kPa or so, and practical application superficial layer foundation bearing capacity is past
Toward too low or even only 30 ~ 50kPa.
3rd, vacuum-dewatering joint dynamic consolidation construction has the following disadvantages：
1st, Application of light well point precipitation+strong rammer
Traditional manifold and branch pipe, general 6 meters of branch pipe depth, well point spacing is generally 4*4m, using vacuum-dewatering, only drops
Water or precipitating, pre-pressing function, vacuum preloading negative pressure consolidation cannot be had concurrently at the same time since the depth as shallow spacing big time is short；
2nd, tube well dewatering or deep-well precipitation+strong rammer
Traditional manifold and branch pipe, pipe well use immersible pump gravity precipitation, and deep-well precipitation is using immersible pump gravity precipitation and very
The mode that airborne water combines, well-point arrangement spacing bigger, general 15*15m, thick and thin processing mode, lays particular emphasis on precipitation, due to
The spacing excessive time is short cannot to have vacuum preloading negative pressure consolidation concurrently at the same time；
Dewatering dynamic compaction Ground Treatment because precipitation is thick and layouting of dredging with short term（30 days or so）Processing mode, is suitable only for shallow-layer
Processing；
The presence of all methods can improve and optimize part above.
The content of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of easy to operate, of low cost, construction effect it is good one
Body formula well point plastic strip vacuum system.
The object of the present invention is achieved like this：
A kind of integral type well point plastic strip vacuum system manifold, it is characterised in that it includes transverse tube and longitudinal tubule (L tubule), the transverse tube by
Multiple transverse tube segmentations and more logical linkage section are formed by connecting, and are connected between two neighboring transverse tube segmentation by more logical linkage section
Connect, transverse tube segmentation includes a necking section and straight pipe.
The necking section of same transverse tube segmentation to longitudinal tubule (L tubule) distance than straight pipe to longitudinal tubule (L tubule) distance.
More logical linkage section includes linkage section main body, the left and right two of linkage section main body using eight logical linkage sections, eight logical linkage sections
End is respectively arranged with transverse tube segmentation interface, three connection interface tubes is forwardly and rearwardly respectively arranged with linkage section main body, even
The adjacent connecting tube of adapter interface is attached, the adjacent transverse tube segmentation connection of transverse tube segmentation interface.
The longitudinal tubule (L tubule) is segmented by multiple longitudinal tubule (L tubule)s and three-way connection is formed by connecting, and two neighboring longitudinal tubule (L tubule) segmentation is connected by three
Head connection, the 3rd interface of three-way connection connect the transverse tube closed on, check valve are additionally provided with longitudinal tubule (L tubule) segmentation.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, sealing system improves one：
Cancel sand bedding course, by the way that the shallow-layer soil body at the well-point pipe of integral type well point plastic strip vacuum system is used as under overlay film
First of critical seal layer；Sealing effect is good, and construction is simple is reliable, saves material；
2nd, sealing system improves two：
Setting identical with conventional vacuum precompressed sealing system, diaphragm seal containing geotextiles and mud sealing curtain；
3rd, sealing system improves three：
Region surface to be reinforced in cofferdam covers water-stop, forms the three seals layer under overlay film；
4th, sealing system improves four
Diaphragm seal indentation sealing postsulcal part point is backfilling and compacted, and sealing ditch, which is poured water, to be ensured to seal ditch leakproofness, forms the 4th
Sealing；
5th, Vacuum Loading System improves one：
Conventional vacuum precompressed, the loading of 80KPa negative pressure of vacuum is each provided at earth's surface, and after improvement, 80KPa negative pressure maximum is positioned at ground
The following shallow-layer soil body of table and deep soil junction, are improved necessarily by improving vacuum preloading effective reinforcement depth theoretically
Depth（The depth of first of sealant i.e. the shallow-layer soil body）, while reduce and treat reinforcing area surrounding shallow-layer sealing effect not
The good negative effect brought；
6th, Vacuum Loading System improves two：
Conventional vacuum precompressed using etc. carry compression system, except early period in order to check leaking source and slow down plastic strip earth pillar and formed
Turn on pump rate 60% ~ 80%, later stage maintain the negative pressure saving energy also to maintain turn on pump rate to be not less than 80%, and other situations were both unchanged, improved
Afterwards, using hierarchical loading, until settling stabilization under this grade of negative pressure load, level-one load level is then improved again and continues to add
Pressure, until stablizing, is circulated successively, steps up zone negative pressure to be reinforced to maximum, similar to static load test hierarchical loading,
Also the work progress of construction multistage loadings is simulated, consolidation pattern is loaded for allergic effect power path, in practice it has proved that, conventional vacuum
Although precompressed realizes earth's surface negative pressure 80kPa load levels, it is full that the following different depth soil body of earth's surface reaches far away more than 80kPa
Load state, this is a larger mistaken ideas, in theory can be by infinitely increasing vacuum pump quantity by hierarchical loading after improvement
Realize that the fully loaded negative pressure that the different depth soil body reaches more than theoretical limit 80kPa reinforces state.This improvement greatly improves
Vacuum preloading limit consolidation effect, and conventional vacuum precompressed is difficult to infinitely to improve vacuum pump quantity and realizes hierarchical loading, its
The reason is that：First, the more difficult arbitrarily increase vacuum pump quantity of sealing system membrane system complex, can only once be laid by default quantity
Complete, vacuum pump quantity can not be adjusted according to monitoring data and realize dynamic load, secondly, be continuously increased with vacuum pump quantity,
Level of ground water decline is too fast, and the level of ground water above surrounding soil body forms larger leaking source, conventional to use wax wall cement
Native envelope wall etc. seems helpless less effective that process materials limit at present in face of the huge leaking source of semi-infinite body ground
The slow gas leakage that earth's surface sealing system shows under ever-increasing vacuum level, causes to form the circulation of a limiting equilibrium,
Therefore conventional vacuum is pressed with the vacuum pump quantity of a balance, the every vacuum pump processing area 800 ~ 1500 also often said in specification in advance
Square.This is also vacuum preloading 90 days, the theoretical source of 800 ~ 1500 squares of fixed pattern conclusions of every vacuum pump processing area, improves
Afterwards, the groundwater recharge of suction forms reinforcing area body of groundwater seepage flow self-loopa to ground top layer or recharge to ground surrounding
System, preferably realizes the vacuum preloading of hierarchical loading；
7th, vaccum pump unit improves
Conventional vacuum precompressed carries out vacuum preloading using open type from the jet pump that overflows, and is improved to conventional light well point and is used
Sealed vacuum jet pump, easy to maintaining, extend service life of equipment, while be easy to implement vacuum preloading and precipitation is strong
The perfect linking of construction is rammed, " vacuum is completed using the same integral type well point plastic strip vacuum systems of the same manifold of same equipment
The foundation stabilization task that more than 3 kinds of precompressed, precipitating, pre-pressing, dynamic consolidation ".
8th, the improvement of manifold：
Conventional vacuum precompressed manifold is equal diameter pvc chimney filters etc., improves transverse tube and uses with self-control venturi jet stream effect
The transverse tube segmentation of necking section improve vacuumizing effect, in addition substituting traditional threeways using more logical linkage sections improves tubing utilization rates
And efficiency of assembling；
Often several kms are to several myriametres etc. for conventional vacuum precompressed construction unit manifold quantity, and negative pressure is by pipeline toward deep
Transmit, since path is longer, the larger along path loss of negative pressure can be caused, and this loss tends not to ignore, therefore,
Improve manifold and use jet stream effect connector, equivalent to tens even hundreds of minipumps are added, reduce negative pressure edge
While line loss, negative pressure is improved by several micro jets, effect is more preferable.
9th, drain bar improves：
Conventional Degradable plastic water drainage plate is core plate degraded, and actual degradation effect is bad, improves drain bar and uses filter membrane
Degradable biological material, does not stay drainage channel to reduce settlement after construction after environmental protection and work, core plate reduces cost at the same time without degraded
Core plate is as reinforcement material reinforcing soft soil；
10th, the remaining plastic draining board of conventional vacuum precompressed often causes certain residual settlement after work, especially constructs
Period fails the soft soil foundation fully consolidated, the slow consolidation settlement under load long term after work, forms disease, after improvement,
The superstructure of integral type well point plastic strip pipe（Connect box, well-point pipe and connecting tube）It can pull out, it is light in vacuum preloading, precipitation
After the completion of rammer, the superstructure of integral type well point plastic strip pipe, the superstructure of integral type well point plastic strip pipe are pulled out using pipe extractor
It can reuse, while the drain bar under earth's surface in shallow soil body under noresidue drainage channel, the shallow-layer soil body realizes entirety
Drainage channel is not stayed after work, reduces residual settlement after work；
11st, conventional precipitation gently rams well point mechanical hole building and does not often take out water formation dried-up well, general to recommend to use artificial water
Rush method pore-forming, the general 200 ~ 300mm in aperture, general 1 meter or so of filter, pore-forming it is bad often can not water outlet, spacing of layouting due to
Look after and ram walking and be also impossible to too close, it is height-limited that light well point vacuum-dewatering principle limits water lift, at present document finding
Most deep light well point considers precipitation funnel, therefore level of ground water reduces limit depth only 4 ~ 5 meters of left sides also just at 7 meters or so
The right side, being required to backfill medium coarse sand ensures water recharging, and water yield is smaller, causes vacuum jet pump negative pressure to reduce very fast influence vacuum
Dewatering effect, but this causes gas leakage negative pressure in well point not high and the unfavorable factors such as sand drain continuation drainage subsidence is left after work at the same time, therefore
Follow-on Dewatering dynamic compaction is popular now uses deep-well precipitation or tube well dewatering, but in view of two kinds of dewatering modes layout can not possibly be too
It is close, precipitation can only be played the role of, it is difficult to play the role of vacuum preloading, integral type well point plastic strip vacuum system, filter depth can be with
It is deeper than vacuum-dewatering well point, gravity precipitation and vacuum-dewatering are taken into account, cheap suitable large area is laid, and not only improves precipitation,
Be conducive to vacuum preloading again, realize mechanized construction pore-forming efficiency height, since filter is using the higher overlength plastic row of water-flowing amount
Water plate, dried-up well rate is almost nil, and either precipitation depth is also or precipitation efficiency perfect can substitute above-mentioned various drops completely
Water gently rams mode；
12nd, conventional vacuum precompressed plastic draining board top is located at ground surface, and light ram can cause place large area water outlet, table soil
Layer water content is excessive, then influences light rammer construction and quality；After improvement, tamping point position branch pipe is extracted, and area peripheral edge is rammed close to light
Connection manifold, which continues to draw water, keeps level of ground water, therefore is gently rammed even in the point, and underground flood peak, which is also impossible to break through the shallow-layer soil body, to be oozed
It flow to earth surface effects gently to ram, it is ensured that light rammer construction drying is anhydrous；
13rd, use early period and cover Water Spreading vacuum pre-press reinforcing deep foundation base, but the unlikely decline of palpus controlling groundwater level is too fast
Vacuum preloading effect is influenced, level of ground water, which declines, under normal circumstances should control within 2 ~ 3 meters of underground.Treat that vacuum preloading sedimentation is steady
It is fixed, open the water that cofferdam aerial drainage stores（Conventional depth of water 50cm or so）, diaphragm seal is removed, continues quick lowering of watertable and plays
While taking into account the vacuum preloading of precipitating, pre-pressing effect, the first pass dewatering construction of Dewatering dynamic compaction is completed, can be quick after improvement
Lowering of watertable is to 5 ~ 8 meters, so that strong rammer dynamic consolidation increases energy level and influence depth and ensures to occur without rubber at the same time
Soil, conventional Dewatering dynamic compaction level of ground water generally only decline 2 ~ 3 meters or so, less effective.
14th, conventional vacuum precompressed dewatering effect is not good enough, and conventional Dewatering dynamic compaction does not have vacuum preloading effect, integral type well point
Plastic strip vacuum system lays substantial amounts of drain bar and replaces shorter filter, you can, can also to realize quick lowering of watertable
Efficiently realize vacuum seepage precompressed, a kind of 2 kinds of effects of material, realize the purpose of a material multipurpose efficiency energy saving；
15th, conventional vacuum precompressed superficial layer Effect of Ground Treatment be not good enough, and conventional Dewatering dynamic compaction processing depth is not good enough, is improved to vacuum
Precompressed, precipitating, pre-pressing, precipitation gently ram the multiple effect basement process being combined, and deep shallow layer foundation is reinforced at the same time, is utilizing vacuum
On the premise of precompressed deep soil preferably consolidation, 6 meters or so are formed at the shallow-layer soil body using precipitating, pre-pressing and Dewatering dynamic compaction
Crust layer, multiple effect adds the densification effect of the soil body, reduces settlement after construction, and the improvement is not increasing larger cost
Under the premise of, multiple reinforcing task is completed, is particularly suitable for the work China Democratic National Construction Association workshop storage ground and machine stringenter to settlement request
Field runway, town road and railway bed etc.；
16th, lakes and marhshes domain underwater vacuum precompression in river sea is improved to no film without sand only integrated construction formula well point by above-mentioned analysis
Plastic strip vacuum system, underwater to connect manifold, the seepage flow flow of water pressure difference formed by jet pump forms underground water reciprocation cycle
Seepage field, realizes that vacuum seepage consolidates；To prevent that Free water body forms invalid seepage flow to seepage field on the ground, can suitably increase one
The well point length of tube of body formula precipitation well point system, at least should be greater than 6 meters of depth of land setting, will according to soil properties and reinforcing
Ask and adjust accordingly.
17th, the method is more suitable for ultra-soft foundation reinforcing of reclaiming fields from the sea, its implementation is to pass through simple manually insertion one
Body formula well point plastic strip pipe is manually laid with the shallow-layer precipitation vacuum preloading that diaphragm seal realizes four resealings.
Therefore the present invention has the advantages that easy to operate, of low cost, construction effect is good.
Brief description of the drawings
Fig. 1 is the elevational schematic view of the integral type well point plastic strip vacuum system of the present invention.
Fig. 2 is the schematic top plan view of the integral type well point plastic strip vacuum system of the present invention.
Fig. 3 is the structure diagram of the integral type well point plastic strip pipe of the present invention.
Fig. 4 is the sectional view of the drain bar of the present invention.
Fig. 5 is the structure diagram of the connection box of the present invention.
Fig. 6 is enlarged drawing at the A in Fig. 2.
Fig. 7 is the schematic diagram of the transverse tube in Fig. 6.
Fig. 8 is enlarged drawing at the B in Fig. 2.
Fig. 9 is the construction method schematic diagram of the embodiment of the present invention one.
Wherein：
Drain bar 1, core plate 1.1, main gusset 1.11, secondary gusset 1.12, filter membrane 1.2, drainage channel 1.3
Connect box 2, housing 2.1, lower interface 2.2, upper interface 2.3, screw hole 2.4
Well-point pipe 3
Connecting tube 4
Transverse tube 5, transverse tube segmentation 5.1, straight pipe 5.11, the first Taper Pipe section 5.12, the second Taper Pipe section 5.13, more logical linkage section
5.2nd, linkage section main body 5.21, transverse tube segmentation interface 5.22, connection interface tube 5.23
Longitudinal tubule (L tubule) 6, longitudinal tubule (L tubule) segmentation 6.1, three-way connection 6.2, check valve 6.3
Vacuum pump 7
Water-stop curtain 8
Deep soil 100
The shallow-layer soil body 200.
Embodiment
Referring to Fig. 1 ~ Fig. 9, a kind of well point plastic strip overlay film vacuum pre-pressed joint precipitating, pre-pressing dynamic consolidation of the present invention
Method, it comprises the following steps：
Step 1: levelling of the land, treats that reinforcing area surrounding excavates draining ditch water discharge；
Step 2: according to soil condition selection without or carry out the pre- rammer before precipitation, energy level fixes tentatively 600 ~
1000kN.m, square tamping point spacing 4*4 ~ 7*7m can adjust, be bulldozed after rammer, and construction water-stop curtain 8, sealing curtain are selected by operating mode
Curtain 8 is cement mixing pile lateral seal barricade or mud lateral seal barricade；
Step 3: integral type well point plastic strip vacuum system is arranged
3.1st, plastic strip pipe in integral type well point, which carries out plugging construction, forms integral type well point plastic strip pipe network lattice；
1 ~ 4m of grid spacing of integral type well point plastic strip pipe network lattice is adjustable；
Integral type well point plastic strip pipe（Namely improved branch pipe）Including drain bar 1, connection box 2, well-point pipe 3 and connect
Adapter 4, the drain bar 1 are vertically arranged in deep soil 100, and the length of drain bar 1 is 20m or so, and the well-point pipe 3 is perpendicular
To being arranged in the shallow-layer soil body 200, the length of well-point pipe 3 is 6 ~ 9m, and the upper end of drain bar 1 is by connecting box 2 and well-point pipe 3
Lower end connects, and the upper end of well-point pipe 3 is exposed outside the shallow-layer soil body 200, and the upper end of well-point pipe 3 is connected with one end of connecting tube 4, connection
The length of pipe 4 is 1 ~ 2m.A diameter of 10 ~ 20mm of well-point pipe 3 and connecting tube 4.
Drain bar 1 includes internal core plate 1.1 and the filter membrane 1.2 of the periphery of core plate 1.1, the core plate 1.1 and filter membrane 1.2
Between form drainage channel 1.3, the core plate 1.1 is made of non-degradable material or difficult degradation material, and the filter membrane 1.2 is
Degradation material is made.
As a preferred embodiment, core plate 1.1 is made of plastic material, filter membrane 1.2 is made of flax material.
As a preferred embodiment, core plate 1.1 includes the main gusset 1.11 and more longitudinally spaced arrangements of a lateral arrangement
Secondary gusset 1.12 before and after main gusset 1.11, the sky formed between main ribs plate 1.11, secondary gusset 1.12 and filter membrane 1.2
Gap is drainage channel 1.3.
After drain bar 1 is inserted into ground, as time goes by, since filter membrane 1.2 uses degradation material to be made, filter membrane
1.2 realize fast degradation, filter membrane 1.2 degrade after in ground only remaining core plate 1.1, the soil in ground can fill former filter membrane
1.2 and the space of former drainage channel 1.3 so that soil is fitted closely with core plate 1.1, therefore core plate 1.1 in ground not only
There is no gap so that ground continues to settle, and the effect of reinforcement is also acted, improve difference floor heights above and below in ground
Integraty.
The lower end of the drain bar 1 is provided with bottom discharge plate end socket, and bottom discharge plate end socket uses plastic adhesive tape paper bag
Wrap up in be formed.
The connection box 2 includes housing 2.1, and the lower end of the housing 2.1 is provided with one and is kissed with 1 upper end shape of drain bar
The lower interface 2.2 of conjunction, the upper end of the connection box 2 are provided with a upper interface 2.3 coincideing with 3 lower end shape of well-point pipe, institute
State and three screw holes 2.4 are provided with housing 2.1, the rectangular in cross-section structure of the lower interface 2.2, drain bar 1 during installation
At upper end insertion lower interface 2.2, then drain bar 1 and connection box 2 are connected in one by drivescrew in screw hole 2.4, so
Afterwards plastic adhesive tape is dressed outside in lower interface 2.2.The upper interface 2.3 is circular tube structure, and the lower end of well-point pipe 3 is sheathed on during installation
Outside upper interface 2.3, the lower end of upper interface 2.3 and well-point pipe 3 is then dressed outside into plastic adhesive tape.
The connecting tube 4 is wired hose, and connecting tube 4 includes hose and the spiral wire of Lining Hose.
The well-point pipe 3 is the plastic tubes such as PPR, and well-point pipe 3 is wrapped up with 4 junction of connecting tube by diaphragm seal or steel wire
Winding, is produced negative-pressure dense sealer after being wrapped up using diaphragm seal, when plastic strip pipe vacuumizes in integral type well point and the more is inhaled the more tight.Well point
Pipe 3 can also use same wired hose with connecting tube 4 so that well-point pipe 3 forms integrative-structure with connecting tube 4.
3.2nd, integral type well point plastic strip pipe Mesh connection manifold and vacuum pump form integral type well point plastic strip vacuum system.
The manifold includes longitudinal tubule (L tubule) 6 and more transverse tubes 5 being connected on longitudinal tubule (L tubule) 6.
The transverse tube 5 is formed by connecting by multiple transverse tubes segmentation 5.1 and more logical linkage section 5.2, two neighboring transverse tube segmentation
It is attached between 5.1 by more logical linkage section 5.2, for more logical linkage section 5.2 as a kind of preferably using eight logical linkage sections, eight is logical
Linkage section includes linkage section main body 5.21, and the left and right ends of linkage section main body are respectively arranged with transverse tube segmentation interface 5.22, even
Connect and three connection interface tubes 5.23 are forwardly and rearwardly respectively arranged with section main body 5.21, connection interface tube 5.23 is adjacent
Connecting tube 4 is attached, and adjacent 5.1 connection of transverse tube segmentation of transverse tube segmentation interface 5.22, the transverse tube segmentation 5.1 includes
One necking section, necking section are set close to more logical linkage section 5.2, and the transverse tube segmentation 5.1 further includes straight pipe 5.11, the neck
Contracting section includes the first Taper Pipe section 5.12 and the second Taper Pipe section 5.13, the small head end of the first Taper Pipe section 5.12 and the second Taper Pipe section
5.13 small head end docking, the transverse tube segmentation interface of stub end more logical linkage sections 5.2 adjacent thereto of the first Taper Pipe section 5.12
5.22 docking, the stub end of the second Taper Pipe section 5.13 docks with one end of straight pipe 5.11, the other end of straight pipe 5.11 and its
The transverse tube segmentation interface 5.22 of adjacent how logical linkage section 5.2 docks.The taper of first Taper Pipe section 5.12 is more than the second Taper Pipe section
5.13 taper, necking section form venturi jet stream effect.
The longitudinal tubule (L tubule) 6 is vertically connected at one end of all transverse tubes 5, and the one end of transverse tube 5 away from longitudinal tubule (L tubule) 6 is provided with transverse tube envelope
Head, away from longitudinal tubule (L tubule) 6, the straight pipe 5.11 of the transverse tube segmentation 5.1 on transverse tube 5 is close for the necking section of the transverse tube segmentation 5.1 on transverse tube 5
Longitudinal tubule (L tubule) 6.A piece longitudinal tubule (L tubule) 6 connects more transverse tubes 5, the longitudinal tubule (L tubule) 6 connected by multiple longitudinal tubule (L tubule)s segmentation 6.1 and three-way connection 6.2 and
Into two neighboring longitudinal tubule (L tubule) segmentation 6.1 is connected by three-way connection 6.2, and the 3rd interface of three-way connection 6.2 connects the horizontal stroke closed on
Pipe 5, longitudinal tubule (L tubule) are segmented on 6.1 and are additionally provided with check valve 6.3, and the end set of longitudinal tubule (L tubule) 6 has longitudinal tubule (L tubule) end socket.
3.3rd, one layer of geotextiles, two layers of diaphragm seal is covered in total pipe surface of integral type well point plastic strip vacuum system.
Step 4: vacuum preloading
Treat the cofferdam fill of reinforcing area surrounding, cofferdam fill height 0.6 ~ 1.5m height, takes out reinforcing area outside in advance
Source water is to treating in reinforcing area cofferdam so that the high 0.2 ~ 0.6m of water, and then integral type well point plastic strip vacuum system starts vacuum
Precompressed, suction underground water whole recharge to region surface to be reinforced, region surface to be reinforced all is annihilated by water during vacuum preloading
To certain altitude, realize water covering prepressing, cover water-stop；
Its intermediate pump 7 is preferably sealed vacuum jet pump, and vacuum pump is vacuumized to be vacuumized using hierarchical loading：Vacuum
The pump hierarchical loading first order takes every 1800 ~ 2000 squares of vacuum pump processing area adjustable, and manifold first sections negative pressure is full table
100kPa, total pipe end are not less than 90kPa, treat that sedimentation meets that sedimentation for three days on end is not more than 3 millimeters, vacuum pump hierarchical loading the
Two level takes every 1300 ~ 1500 squares of vacuum pump processing area adjustable, treats that sedimentation meets that sedimentation is not more than 3 millimeters for three days on end, very
The sky pump hierarchical loading third level takes every 800 ~ 1000 squares or less adjustable of vacuum pump processing area, and so on, wait to settle
Meet that sedimentation in continuous 5 days is not more than 2 millimeters, reach vacuum preloading processing requirement；
Step 5: being carried out in the fill of cofferdam in interior water to the gutter stored of opening aerial drainage cofferdam fill, geotextiles are removed
Diaphragm seal, starts first pass vacuum dewatering preloading, 5 ~ 10 days adjustable, for the purpose of lowering of watertable, treats that level of ground water reaches
It is required that（Level of ground water reaches 4 ~ 6m of below ground）, progressively remove manifold preparations first pass at tamping point and gently ram；
Step 6: first pass gently rams, energy level fixes tentatively 1500 ~ 2000kN.m, and square tamping point spacing 4*4 ~ 7*7m can adjust,
Side is removed total tube edge and is gently rammed, progressively forward impelling, and light rammer front region, which need to continue precipitation, ensures that level of ground water is not gone up, and rams pusher
It is flat；
Step 7: integral type well point plastic strip pipe Mesh connection residue manifold and vacuum pump, it is pre- to start second time vacuum-dewatering
Pressure, 5 ~ 10 days adjustable, progressively water conservation and removes at tamping point part manifold after the completion of second time vacuum dewatering preloading precipitation and prepares
It is second time light to ram；
Step 8: second time light ram, energy level fixes tentatively 2000 ~ 2800 kN.m or more, square tamping point spacing 4*4 ~ 7*7m
It is adjustable；Side is removed total tube edge and is gently rammed, progressively forward impelling, and light rammer front region, which need to continue precipitation, ensures that level of ground water is not returned
Rise, be bulldozed after rammer；
Step 9: integral type well point plastic strip pipe Mesh connection residue manifold and vacuum pump, it is pre- to start the 3rd time vacuum-dewatering
Pressure, 5 ~ 10 days adjustable, progressively water conservation and removes at tamping point part manifold after the completion of the 3rd time vacuum dewatering preloading precipitation and prepares
It is full to ram；
Step 10: remaining manifold is pulled out, when the well-point pipe 3 and connecting tube 4 that use are split structure, by well-point pipe 3
All pulled out with connecting tube 4, when the wired hose that the well-point pipe 3 and connecting tube 4 that use are an integral structure, excision ground
Connecting tube 4 more than table, is then in the milk in the well-point pipe 3 under earth's surface.It is full to ram, at least stop 7 after second time light ram
It is carried out, 600 ~ 1000kN.m of energy level, is bulldozed after rammer；
Step 11: the absolute altitude of vibroroller cmpacting measurement in the whole field is handed over.
Note：Integral type well point plastic strip vacuum system can be pre- according to place and soil property situation adjustment spacing and length, vacuum
Pressure, precipitation and it is light ram can according to place and soil property situation set-up procedure and pass and duration, ordinary circumstance descending water 3 ~ 4 times,
It is light to ram 3 ~ 5 times.Construction period construction monitoring must be carried out synchronously, it is necessary to which the monitoring project of progress has：Pore water pressure,
Level of ground water, ground settlement, delaminating deposition, vacuum, realize information-aided construction.
Three groups of embodiments are supplemented below：
Embodiment one,
Essential information before basement process：
The ground third layer silt clay layer water content 55%, compression modulus 2.3MPa, thickness is 15 meters average, and layer top is buried
Deep 5m, 20 meters of layer bottom buried depth.
Implementation steps：
Step 1: levelling of the land, treats that reinforcing area surrounding excavates draining ditch water discharge；
Step 2: pre- ram, energy level 800kN.m, square tamping point spacing 4m*4m, cement mixing pile of constructing after rammer is laterally close
Block wall or mud lateral seal barricade；
Step 3: integral type well point plastic strip vacuum system is arranged
3.1st, plastic strip pipe in integral type well point, which carries out plugging construction, forms integral type well point plastic strip pipe network lattice；
The grid spacing 1.2m of integral type well point plastic strip pipe network lattice, integral type well-point pipe plug depth 20m
The length of drain bar 1 is 14m, and the length of well-point pipe 3 is 6m, and the length of connecting tube 4 is 10cm.Well-point pipe 3 and
The diameter 16mm of connecting tube 4.
3.2nd, integral type well point plastic strip pipe Mesh connection manifold and vacuum pump form integral type well point plastic strip vacuum system,
3.3rd, one layer of geotextiles, two layers of diaphragm seal is covered in total pipe surface of integral type well point plastic strip vacuum system.
Step 4: vacuum preloading
Treat the cofferdam fill of reinforcing area surrounding, cofferdam fill height 1.5m height, takes out overseas surrounding source water and extremely add in advance
0.3 m in Gu Qu cofferdam, then starts vacuum preloading seepage consolidation, suction underground water whole recharge to region surface to be reinforced,
Reinforcing area surface is all annihilated by water to 1.0m height, is realized water covering prepressing, is covered water-stop, covers water seepage flow；
Its intermediate pump 7 is preferably sealed vacuum jet pump, and vacuum pump is vacuumized to be vacuumized using hierarchical loading：Vacuum
The pump hierarchical loading first order takes every 1800 squares of vacuum pump processing area, and manifold first sections negative pressure is full table 100kPa, Zong Guanmo
End is not less than 90kPa, and processing treats that sedimentation meets that sedimentation is not more than 3 millimeters for three days on end after 13 days, the vacuum pump hierarchical loading second level
Every 1300 squares of vacuum pump processing area is taken, processing treats that sedimentation meets that sedimentation is not more than 3 millimeters for three days on end after 8 days, vacuum pump
The hierarchical loading third level takes every 800 squares of vacuum pump processing area, and processing treats that sedimentation meets that sedimentation is little for three days on end after 8 days
In 3 millimeters, the vacuum pump hierarchical loading fourth stage takes every 600 squares of vacuum pump processing area, and processing settles after 15 days to be met to connect
Sedimentation in continuous 5 days is not more than 2 millimeters, reaches vacuum preloading processing requirement；
Step 5: being carried out in the fill of cofferdam in interior water to the gutter stored of opening aerial drainage cofferdam fill, geotextiles are removed
Diaphragm seal, starts first pass vacuum dewatering preloading, 6 days, for the purpose of lowering of watertable, treats that level of ground water reaches 4m, progressively
Manifold preparations first pass at tamping point is removed gently to ram；
Step 6: first pass gently rams, energy level fixes tentatively 1500kN.m, square tamping point spacing 4m*4m, is bulldozed after rammer；
Step 7: connection residue manifold and vacuum pump, second time vacuum dewatering preloading of beginning, 5 days, second time vacuum-dewatering
Progressively water conservation and remove at tamping point part manifold after the completion of precompressed precipitation and prepare second time light ram；
Step 8: second time light ram, energy level fixes tentatively 2000kN.m, square tamping point spacing 4m*4m；It is light that total tube edge is removed on side
Ram, progressively forward impelling, light rammer front region, which need to continue precipitation, ensures that level of ground water is not gone up, and is bulldozed after rammer；
Step 9: connection residue manifold and vacuum pump, the vacuum dewatering preloading 5 days of beginning the 3rd time, the 3rd time vacuum-dewatering
Progressively water conservation and remove at tamping point part manifold after the completion of precompressed precipitation and prepare full ram；
Step 10: remaining manifold is pulled out, and it is full to ram, stop 7 days after second time light ram and carry out, energy level 800kN.m, rams pusher
It is flat；
Step 11: vibroroller cmpacting is handed in the whole field.
Construction monitoring during the Foundation Treatment, negative pressure 80kPa at 6 meters of pore water pressure, negative pressure is averaged at 20 meters
30kPa, it is 8 meters that level of ground water, which declines maximum, fifty-fifty descends 6 meters or so of water level decreasing, earth's surface average settlement amount is 80cm, is pushed away
Calculate the degree of consolidation and be not less than 80%,
Foundation detection, foundation bearing capacity are not less than 120kPa, and effective reinforcement depth is not less than 20 meters, is formed in 5 meters of shallow-layer
Crust layer static sounding calculates 5 ~ 8MPa of compression modulus, and third layer silt clay mechanics index of physics is obviously improved.
Embodiment two,
Essential information before basement process
The 4th layer of very soft sill clay layer water content 38% of the ground, compression modulus 3.8MPa, thickness is 13 meters average, and layer top is buried
Deep 3m, 16 meters of layer bottom buried depth.
Step 1: levelling of the land, treats that reinforcing area surrounding excavates draining ditch water discharge；
Step 2: without the pre- rammer before precipitation, construct cement mixing pile lateral seal barricade or mud lateral seal gear
Wall；
Step 3: integral type well point plastic strip vacuum system is arranged
3.1st, plastic strip pipe in integral type well point, which carries out plugging construction, forms integral type well point plastic strip pipe network lattice；
The grid spacing 1.5m of integral type well point plastic strip pipe network lattice, integral type well-point pipe plug depth 16m
The length of drain bar 1 is 10m, and the length of well-point pipe 3 is 6m, and the length of connecting tube 4 is 10cm.Well-point pipe 3 and
The diameter 20mm of connecting tube 4.
3.2nd, integral type well point plastic strip pipe Mesh connection manifold and vacuum pump form integral type well point plastic strip vacuum system,
3.3rd, one layer of geotextiles, two layers of diaphragm seal is covered in total pipe surface of integral type well point plastic strip vacuum system.
Step 4: vacuum preloading
Treat the cofferdam fill of reinforcing area surrounding, cofferdam fill height 1.0m height, takes out overseas surrounding source water and extremely add in advance
0.3m in Gu Qu cofferdam, then starts vacuum preloading seepage consolidation, and suction underground water whole recharge adds to region surface to be reinforced
Gu region surface is all annihilated by water to 0.8m height, realizes water covering prepressing, cover water-stop, cover water seepage flow；
Its intermediate pump 7 is preferably sealed vacuum jet pump, and vacuum pump is vacuumized to be vacuumized using hierarchical loading：Vacuum
The pump hierarchical loading first order takes every 2000 squares of vacuum pump processing area, and manifold first sections negative pressure is full table 100kPa, Zong Guanmo
End is not less than 90kPa, and processing treats that sedimentation meets that sedimentation is not more than 3 millimeters for three days on end after 10 days, the vacuum pump hierarchical loading second level
Every 1500 squares of vacuum pump processing area is taken, processing treats that sedimentation meets that sedimentation is not more than 3 millimeters for three days on end after 7 days, vacuum pump
The hierarchical loading third level takes every 800 squares of vacuum pump processing area, and processing settles after 15 days meets that sedimentation in continuous 5 days is not more than
2 millimeters, reach vacuum preloading processing requirement；
Step 5: being carried out in the fill of cofferdam in interior water to the gutter stored of opening aerial drainage cofferdam fill, geotextiles are removed
Diaphragm seal, starts first pass vacuum dewatering preloading, 7 days, for the purpose of lowering of watertable, treats that level of ground water reaches 5m, progressively
Manifold preparations first pass at tamping point is removed gently to ram；
Step 6: first pass gently rams, energy level fixes tentatively 1800kN.m, square tamping point spacing 4m*4m, is bulldozed after rammer；
Step 7: connection residue manifold and vacuum pump, second time vacuum dewatering preloading of beginning, 7 days, second time vacuum-dewatering
Progressively water conservation and remove at tamping point part manifold after the completion of precompressed precipitation and prepare second time light ram；
Step 8: second time light ram, energy level fixes tentatively 2500kN.m, square tamping point spacing 4m*4m；It is light that total tube edge is removed on side
Ram, progressively forward impelling, light rammer front region, which need to continue precipitation, ensures that level of ground water is not gone up, and is bulldozed after rammer；
Step 9: connection residue manifold and vacuum pump, the vacuum dewatering preloading 7 days of beginning the 3rd time, the 3rd time vacuum-dewatering
Progressively water conservation and remove at tamping point part manifold after the completion of precompressed precipitation and prepare full ram；
Step 10: pulling out remaining manifold, full rammer, stops 7 days after second time light ram and carries out, energy level 1000kN.m, after rammer
It is bulldozed；
Step 11: vibroroller cmpacting is handed in the whole field.
Construction monitoring during the Foundation Treatment, negative pressure 86kPa at 6 meters of pore water pressure, negative pressure is averaged at 16 meters
45kPa, it is 8 meters that level of ground water, which declines maximum, fifty-fifty descends 6 meters or so of water level decreasing, earth's surface average settlement amount is 58cm, is pushed away
Calculate the degree of consolidation and be not less than 80%,
Foundation detection, foundation bearing capacity are not less than 120kPa, and effective reinforcement depth is not less than 16 meters, is formed in 6 meters of shallow-layer
Crust layer static sounding calculates 8 ~ 13MPa of compression modulus, and the 4th layer of very soft sill clay mechanics index of physics is obviously improved.
Embodiment three,
Essential information before basement process
The 2nd layer of silt clay water content 78% of the ground, compression modulus 2.1MPa, thickness is 20 meters, layer top buried depth 4m average,
24 meters of layer bottom buried depth.
Step 1: levelling of the land, stabilization zone surrounding excavates draining ditch water discharge；
Step 2: the pre- rammer before precipitation, energy level 600kN.m, square tamping point spacing 4m*7m, cement mixing of constructing after rammer
Stake lateral seal barricade or mud lateral seal barricade；
Step 3: integral type well point plastic strip vacuum system is arranged
3.1st, plastic strip pipe in integral type well point, which carries out plugging construction, forms integral type well point plastic strip pipe network lattice；
The grid spacing 1.0m of integral type well point plastic strip pipe network lattice, integral type well-point pipe plug depth 24m
The length of drain bar 1 is 18.5m, and the length of well-point pipe 3 is 5.5m, and the length of connecting tube 4 is 10cm.Well-point pipe 3
And the diameter 16mm of connecting tube 4.
3.2nd, integral type well point plastic strip pipe Mesh connection manifold and vacuum pump form integral type well point plastic strip vacuum system,
3.3rd, one layer of geotextiles, two layers of diaphragm seal is covered in total pipe surface of integral type well point plastic strip vacuum system.
Step 4: vacuum preloading
Treat the cofferdam fill of reinforcing area surrounding, cofferdam fill height 1.5m height, takes out overseas surrounding source water and extremely add in advance
0.3m in Gu Qu cofferdam, then starts vacuum preloading seepage consolidation, and suction underground water whole recharge adds to region surface to be reinforced
Gu region surface is all annihilated by water to 1.2m height, realizes water covering prepressing, cover water-stop, cover water seepage flow；
Its intermediate pump 7 is preferably sealed vacuum jet pump, and vacuum pump is vacuumized to be vacuumized using hierarchical loading：Vacuum
The pump hierarchical loading first order takes every 1800 squares of vacuum pump processing area, and manifold first sections negative pressure is full table 100kPa, Zong Guanmo
End is not less than 90kPa, and processing treats that sedimentation meets that sedimentation is not more than 3 millimeters for three days on end after 25 days, the vacuum pump hierarchical loading second level
Every 1300 squares of vacuum pump processing area is taken, processing treats that sedimentation meets that sedimentation is not more than 3 millimeters for three days on end after 12 days, vacuum
The pump hierarchical loading third level takes every 800 squares of vacuum pump processing area, and processing treats that sedimentation meets to settle for three days on end not after 12 days
More than 3 millimeters, the vacuum pump hierarchical loading fourth stage takes every 600 squares of vacuum pump processing area, and processing settles after 26 days to be met
Sedimentation in continuous 5 days is not more than 2 millimeters, reaches vacuum preloading processing requirement；
Step 5: being carried out in the fill of cofferdam in interior water to the gutter stored of opening aerial drainage cofferdam fill, geotextiles are removed
Diaphragm seal, starts first pass vacuum dewatering preloading, 10 days, for the purpose of lowering of watertable, treats that level of ground water reaches 4.5m, by
Step is removed manifold preparations first pass at tamping point and is gently rammed；
Step 6: first pass gently rams, energy level fixes tentatively 1800kN.m, square tamping point spacing 4m*7m, is bulldozed after rammer；
Step 7: connection residue manifold and vacuum pump, second time vacuum dewatering preloading of beginning, 5 days, second time vacuum-dewatering
Progressively water conservation and remove at tamping point part manifold after the completion of precompressed precipitation and prepare second time light ram；
Step 8: second time light ram, energy level fixes tentatively 2300kN.m, square tamping point spacing 4m*7m；It is light that total tube edge is removed on side
Ram, progressively forward impelling, light rammer front region, which need to continue precipitation, ensures that level of ground water is not gone up, and is bulldozed after rammer；
Step 9: connection residue manifold and vacuum pump, the vacuum dewatering preloading 10 days of beginning the 3rd time, the 3rd time vacuum-dewatering
Progressively water conservation and remove part manifold at tamping point after the completion of precompressed precipitation and prepare the 3rd time light ram；
Step 10: the 3rd time light ram, energy level 2800kN.m, square tamping point spacing 4m*7m；Side is removed total tube edge and is gently rammed,
Progressively forward impelling, light rammer front region, which need to continue precipitation, ensures that level of ground water is not gone up, and is bulldozed after rammer；
Step 11: connection residue manifold and vacuum pump, the vacuum dewatering preloading 10 days of beginning the 4th time, the 4th time vacuum drop
Progressively water conservation and remove at tamping point part manifold after the completion of water for prepressing precipitation and prepare full ram；
Step 12: remaining manifold is pulled out, and it is full to ram, stop 7 days after the 3rd time light ram and carry out, energy level 1000kN.m, is rammed
After be bulldozed；
Step 13: vibroroller cmpacting is handed in the whole field.
Construction monitoring during the Foundation Treatment, negative pressure 83kPa at 6 meters of pore water pressure, negative pressure is averaged at 15 meters
40kPa, negative pressure 20kPa at 24 meters, it is 6.5 meters that level of ground water, which declines maximum, fifty-fifty descends 5 meters or so of water level decreasing, earth's surface
Average settlement amount is 118cm, calculates that the degree of consolidation is not less than 80%,
Foundation detection, foundation bearing capacity are not less than 120kPa, and effective reinforcement depth is not less than 24 meters, shape in 5.5 meters of shallow-layer
5.5 ~ 9MPa of compression modulus is calculated into crust layer static sounding, and the 2nd layer of silt clay mechanics index of physics is obviously improved.
Claims (1)
1. a kind of integral type well point plastic strip vacuum system manifold, it is characterised in that it includes transverse tube and longitudinal tubule (L tubule), and the transverse tube is by more
A transverse tube segmentation and more logical linkage section are formed by connecting, and are attached between two neighboring transverse tube segmentation by more logical linkage section,
Transverse tube segmentation includes a necking section and straight pipe；
The necking section of same transverse tube segmentation to longitudinal tubule (L tubule) distance than straight pipe to longitudinal tubule (L tubule) distance；
More logical linkage section includes linkage section main body, the left and right ends point of linkage section main body using eight logical linkage sections, eight logical linkage sections
Transverse tube segmentation interface is not provided with, and three connection interface tubes, connecting tube are forwardly and rearwardly respectively arranged with linkage section main body
The adjacent connecting tube of interface is attached, the adjacent transverse tube segmentation connection of transverse tube segmentation interface；
The longitudinal tubule (L tubule) is segmented by multiple longitudinal tubule (L tubule)s and three-way connection is formed by connecting, and two neighboring longitudinal tubule (L tubule) segmentation is connected by three-way connection
Connect, the 3rd interface of three-way connection connects the transverse tube closed on, and check valve is additionally provided with longitudinal tubule (L tubule) segmentation.
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| CN2225490Y (en) * | 1994-10-25 | 1996-04-24 | 王绍志 | Abreast jet well point machine group |
| CN201386282Y (en) * | 2009-04-09 | 2010-01-20 | 秦洪德 | Jet supercharging system for light well-point dewatering system |
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