CN109441492A - A kind of large section rectangular top pipe originates portal dynamic water-proof device - Google Patents
A kind of large section rectangular top pipe originates portal dynamic water-proof device Download PDFInfo
- Publication number
- CN109441492A CN109441492A CN201811624360.3A CN201811624360A CN109441492A CN 109441492 A CN109441492 A CN 109441492A CN 201811624360 A CN201811624360 A CN 201811624360A CN 109441492 A CN109441492 A CN 109441492A
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- China
- Prior art keywords
- grouting pipe
- flap
- steel case
- portal
- rubber slab
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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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
Abstract
The invention belongs to underpass construction work technical field, discloses a kind of large section rectangular top pipe and originate portal dynamic water-proof device, the pre-buried steel loop includes twice wire brush and the first Grouting Pipe, is equipped with the hole passed through for the first Grouting Pipe between twice wire brush；The middle part of the extension steel case is equipped with the second Grouting Pipe；The extension steel case is connected to pre-buried steel loop close to the side of portal by the first fixing piece；The first cord rubber slab is equipped between the pre-buried steel loop and extension steel case, the inside of extension steel case is equipped with the first flap, and the first flap are connect by the first fixing piece with extension steel case；The extension steel case is equipped with the second cord rubber slab and the second flap close to the side of portal, and the second cord rubber slab and the second flap are connect by the second fixing piece with extension steel case.The present invention can carry out big cross section abnormity jacking construction in rich water soft stratum, it is possible to prevente effectively from when jacking construction, portal percolating water, it is ensured that construction safety and high construction efficiency.
Description
Technical field
The invention belongs to underpass construction work technical fields more particularly to a kind of large section rectangular top pipe to originate hole
Door dynamic water-proof device.
Background technique
The branch that pipe jacking construction technique develops as pipe gallery, this is rapidly developed for several years in China, and wide
It is general to be applied to underpass engineering.As a kind of not grooving construction method, prime advantage is to use does not slot push bench process
Tunneling mode, above-ground structures or structures are directly affected so as to avoid work surface.Country's push pipe size is general at present
All over 3600mm is less than, mostly round, most area geological hydrology condition is preferable, and construction risk is lower；But as a kind of underground
Excavation method, big cross section abnormity jacking construction belongs to high risk operation, portal in push pipe jack-in process in rich water soft stratum
In lasting Initial condition, portal water burst is influenced by engineering geology, the hydrology, structure size, jacking length etc., gushes sand risk pole
Greatly, easily there is soil erosion and in turn result in surface subsidence, generate undesirable social influence, in addition, also construction in, also usually because
Lead to casualties and property loss, very influence project progress for burst accident.Therefore jacking construction portal in special formation
Protrusion-dispelling, which gushes technical research already, becomes difficult point, emphasis and the hot issue of big cross section abnormity push pipe development.
Therefore, those skilled in the art is badly in need of a kind of water-tight device, originates portal to meet large section rectangular top pipe
Waterproof, to avoid because water burst, gush sand due to cause casualties and property loss.
Summary of the invention
To solve the above-mentioned problems, the invention discloses a kind of large section rectangular top pipes to originate portal dynamic water-proof dress
It sets, big cross section abnormity jacking construction can be carried out in rich water soft stratum, it is possible to prevente effectively from when jacking construction, portal leakage
Water, it is ensured that construction safety and high construction efficiency.The specific technical solution of the present invention is as follows:
A kind of large section rectangular top pipe originates portal dynamic water-proof device, including pre-buried steel loop and extension steel case；It is described
Pre-buried steel loop includes twice wire brush and the first Grouting Pipe, is equipped with the hole passed through for the first Grouting Pipe between twice wire brush；Institute
The middle part for stating extension steel case is equipped with the second Grouting Pipe；The extension steel case is connected to pre-buried steel loop close to hole by the first fixing piece
The side of door；The first cord rubber slab is equipped between the pre-buried steel loop and extension steel case, the inside of extension steel case is equipped with first
Flap, the first flap are connect by the first fixing piece with extension steel case；The extension steel case is equipped with close to the side of portal
Second cord rubber slab and the second flap, the second cord rubber slab and the second flap pass through the second fixing piece and extension steel case
Connection.
The utility model has the advantages that dynamic water-proof device disclosed by the invention provides three waterproof layers；Wherein extension steel case is provided with
First of waterproof layer, two wire brushes and the first Grouting Pipe constitute second waterproof layer；When push-bench push broach passes through the first curtain
After cloth rubber slab, by the second Grouting Pipe to the sky formed between the first cord rubber tube, the second cord rubber slab and push-bench
Chamber injects slurries；After push-bench push broach passes through wire brush, formed by the first Grouting Pipe to twice wire brush and push-bench
Cavity injects slurries；It can so continue to guarantee that portal device is in dynamic sealing state, to reduce portal water burst, gush sand
Engineering risk is prevented from causing surface subsidence because of soil erosion, or even is collapsed.
Preferably, each wire brush is fully welded with pre-buried steel loop, and each wire brush fills the grease for lubrication.
The utility model has the advantages that wire brush and pre-buried steel loop are fully welded, can guarantee the cutterhead of push-bench when passing through wire brush, no
Easily wire brush can be caused to fall off, avoid can not achieve the function of multi layer waterproof of the present invention because wire brush falls off；In steel wire
It paints and fills grease, be to make push-bench by the way that more smoothly, grease can play the role of lubrication, can reduce herein
Push-bench passes through friction when wire brush, also ensures that push-bench will not fall wire brush by band easily；On the other hand, grease can be right
Wire brush plays the role of good maintenance, avoids that wire brush is too fast, premature get rusty and damages.
Preferably, the extension steel case includes that first annular pressing plate, the second annular pressing plate and intermediate sealing steel loop, three are mutual
The connection of phase continuous fillet weld；Second Grouting Pipe passes through the middle part of intermediate sealing steel loop.
The utility model has the advantages that fillet weld refers to along the two straight weld seams handed over or the nearly straight intersection for handing over part is welded, by mutually interconnecting
First annular pressing plate, the second annular pressing plate and the intermediate sealing steel loop of continuous fillet weld connection, can carry various directions power and
Torque；Second Grouting Pipe passes through the middle part of intermediate sealing steel loop, after the cutterhead of push-bench can be made to pass through the first cord rubber slab,
Slurries are easily injected into the cavity formed between the first cord rubber tube, the second cord rubber slab and push-bench, to realize the
The function of one of waterproof.
Preferably, the pre-buried steel loop is equipped with connecting hole closed at one end close to the inside of portal one end, and described first is solid
Determine to be fixedly connected with connecting hole after part sequentially passes through the first flap, first annular pressing plate and the first cord rubber slab.
The utility model has the advantages that connecting hole is reserved in pre-buried steel loop, the present invention can be made during the installation process, it is easy to accomplish
Close and compact assembly meets widget of the invention in assembling, reaches good sealing effect.
Preferably, the third annular pressure for enhancing sealing is equipped between the second cord rubber slab and the second flap
Plate.
The utility model has the advantages that the sealing in order to preferably realize first of waterproof layer, the setting of third annular pressing plate can be improved
Sealing performance of the invention.
Preferably, first flap and the second flap include fixed plate and turnover panel；The fixed plate passes through pin
Axis is connect with turnover panel；The fixed plate is connect with extension steel case, and turnover panel is rotated by rotation center of pin shaft.
The utility model has the advantages that pin shaft is standardized fastener, can static state be fixedly connected, opposite fortune can also be done with connected piece
It is dynamic, it is mainly used for the hinged place of two parts, structure is in the hinge connection；In the present invention, fixed plate is connect by pin shaft with turnover panel；Top
Pipe machine is after entering portal, and turnover panel is by push-bench top to certain angle, the at this time bottom of turnover panel and push-bench contact, the first folding
Cavity is formed between page board, the second flap and push-bench；First cord rubber slab and the second cord rubber slab are because of push-bench
Sinciput, also by push-bench top to certain angle, the contact of the first cord rubber slab and the second cord rubber slab with push-bench
Point, is located at the side of the first flap and the second flap, and the double-deck waterproof for so just foring first of waterproof layer is set
Meter, can preferably realize waterproof effect of the invention.
Preferably, first Grouting Pipe is connected to the second Grouting Pipe by grouting pipe, the grouting pipe and outside
Connection.
The utility model has the advantages that grouting pipe and external connection, the end of grouting pipeline is equipped with pressure pump；Pass through the work of pressure pump
With slurries can be easily transported to the first Grouting Pipe or the second Grouting Pipe, make the cavity between the present invention and push-bench
Even if by injection, to reach waterproof effect of the invention.
Preferably, first Grouting Pipe is equipped with the first valve of control nozzle switch, and second Grouting Pipe is equipped with control
Second valve of tubulation mouth switch；The end of the grouting pipe is equipped with total valve.
The utility model has the advantages that the setting of the first valve, the second valve and total valve, is conducive to the present invention to the process of injection slurries
Control, manages process of waterproof of the invention effectively.
Compared to the prior art, the present invention provides twice waterproof layers, wherein one of waterproof layer positioned at extension steel case has
Standby bilayer water-proof function；After the cutterhead of push-bench passes through the first cord rubber slab, the first cord rubber slab, the second cord rubber
There are cavity between plate and push-bench, the second Grouting Pipe makes the present invention realize waterproof by the injection of the slurries cavity；Meanwhile
There is also cavitys between first turnover panel, the second turnover panel and push-bench, and the cavity is in the first cord rubber slab, the second cord rubber slab
In cavity between push-bench, when the second Grouting Pipe injects slurries, two cavitys can all be filled by slurries, to form the
The double-deck waterproof of one of waterproof layer；After the cutterhead of push-bench passes through twice wire brush, meeting between twice wire brush and push-bench
Cavity is formed, slurries are injected to the cavity by the first Grouting Pipe, the present invention is made to form second waterproof layer；On subsequent push pipe top
During, slurries are constantly injected by the first Grouting Pipe and the second Grouting Pipe, can ensure to originate the portal moment is in
Dynamic sealing state.
Detailed description of the invention
Fig. 1 is the pre-buried steel loop schematic diagram of portal.
Fig. 2 is schematic diagram of the invention.
Fig. 3 is the schematic diagram of the first flap.
Fig. 4 is initiator device figure.
Fig. 5 is the schematic diagram that push-bench passes through hole.
Fig. 6 is the schematic diagram that push-bench passes through hole.
In figure: the pre-buried steel loop of 1-；2- wire brush；The first Grouting Pipe of 3-；The second Grouting Pipe of 4-；The first fixing piece of 5-；6-
One door curtain made of cloth rubber slab；The first flap of 7-；8- second door curtain made of cloth rubber slab；The second flap of 9-；The second fixing piece of 10-；11- first
Annular pressing plate；The second annular pressing plate of 12-；Steel plate for sealing water among 13-；14- connecting hole；15- third annular pressing plate；16- fixed plate；
17- turnover panel；18- pin shaft；19- water-tight device 19；20- cutterhead；
Specific embodiment
The present invention is further elaborated in the following with reference to the drawings and specific embodiments.
As depicted in figs. 1 and 2, a kind of large section rectangular top pipe originates portal dynamic water-proof device, including pre-buried steel loop 1
With extension steel case；The pre-buried steel loop 1 includes twice wire brush 2 and the first Grouting Pipe 3, is equipped between twice wire brush 2 for the
The hole that one Grouting Pipe 3 passes through；The middle part of the extension steel case is equipped with the second Grouting Pipe 4；The extension steel case is fixed by first
Part 5 is connected to pre-buried steel loop 1 close to the side of portal；The first cord rubber is equipped between the pre-buried steel loop 1 and extension steel case
Plate 6, the inside of extension steel case are equipped with the first flap 7, and the first flap 7 are connect by the first fixing piece 5 with extension steel case；Institute
It states extension steel case and is equipped with the second cord rubber slab 8 and the second flap 9, the second cord rubber slab 8 and the close to the side of portal
Two flap 9 are connect by the second fixing piece 10 with extension steel case.
Dynamic water-proof device 19 disclosed by the invention provides three waterproof layers；Wherein extension steel case is provided with first and prevents
Water layer, two wire brushes 2 and the first Grouting Pipe 3 constitute second waterproof layer；When push-bench push broach passes through the first cord rubber
After plate 6, infused by the second Grouting Pipe 4 to the cavity formed between the first cord rubber tube, the second cord rubber slab 8 and push-bench
Enter slurries；After push-bench push broach passes through wire brush 2, the sky that is formed by the first Grouting Pipe 3 to twice wire brush 2 and push-bench
Chamber injects slurries；It can so continue to guarantee that portal device is in dynamic sealing state, to reduce portal water burst, gush husky work
Journey risk is prevented from causing surface subsidence because of soil erosion, or even is collapsed.
As shown in Figure 1, in order to which preferably using the present invention, each wire brush 2 is fully welded with pre-buried steel loop 1, and each steel wire
Brush 2 fills the grease for lubrication.Being fully welded for wire brush 2 and pre-buried steel loop 1, can guarantee that the cutterhead 20 of push-bench is passing through
It when wire brush 2, will not easily cause wire brush 2 to fall off, avoid can not achieve multi layer waterproof of the present invention due to wire brush 2 falls off
Function；Grease is filled on wire brush 2, is to make push-bench by the way that more smoothly, grease can play lubrication herein
Effect, friction when can reduce push-bench by wire brush 2 also ensures that push-bench will not fall wire brush 2 by band easily, real
Existing dynamic water-proof；On the other hand, grease can play the role of good maintenance to wire brush 2, avoid wire brush 2 too fast, too early
Get rusty and damage.
As shown in Figure 1, in order to which preferably using the present invention, the extension steel case includes first annular pressing plate 11, the second ring
Shape pressing plate 12 and intermediate sealing steel loop, the mutual continuous fillet weld connection of three；Second Grouting Pipe 4 passes through intermediate sealing steel loop
Middle part.Fillet weld refers to along the two straight weld seams handed over or the nearly straight intersection for handing over part is welded, and is connected by mutual continuous fillet weld
First annular pressing plate 11, the second annular pressing plate 12 and the intermediate sealing steel loop connect, can carry the power and torque in various directions；The
Two Grouting Pipes 4 pass through the middle part of intermediate sealing steel loop, after the cutterhead 20 of push-bench can be made to pass through the first cord rubber slab 6, side
Just the cavity that will be formed between the first cord rubber tube of slurries injection, the second cord rubber slab 8 and push-bench, to realize first
The function of road waterproof.
As shown in Figure 1, in order to which preferably using the present invention, the pre-buried steel loop 1 is equipped with one close to the inside of portal one end
Closed connecting hole 14 is held, first fixing piece 5 sequentially passes through the first flap 7, first annular pressing plate 11 and the first cord
After rubber slab 6, it is fixedly connected with connecting hole 14.Connecting hole 14 is reserved in pre-buried steel loop 1, and the present invention can be made to install
In the process, close and compact assembly easy to accomplish meets widget of the invention in assembling, reaches good sealing effect
Fruit.
As shown in Figure 1, in order to preferably using the present invention, be set between the second cord rubber slab 8 and the second flap 9
There is the third annular pressing plate 15 for enhancing sealing.In order to preferably realize the sealing of first of waterproof layer, third annular pressing plate
Sealing performance of the invention can be improved in 15 setting.
As shown in figure 3, in order to which preferably using the present invention, first flap 7 and the second flap 9 include fixing
Plate 16 and turnover panel 17；The fixed plate 16 is connect by pin shaft 18 with turnover panel 17；The fixed plate 16 is connect with extension steel case, is turned over
Plate 17 is rotation center rotation with pin shaft 18.Pin shaft 18 is standardized fastener, can static state be fixedly connected, can also with connected
Fitting does relative motion, and is mainly used for the hinged place of two parts, and structure is in the hinge connection；In the present invention, fixed plate 16 passes through pin
Axis 18 is connect with turnover panel 17；Push-bench is after enter portal, and turnover panel 17 is by push-bench top to certain angle, turnover panel 17 at this time
Bottom and push-bench contact, form cavity between the first flap 7, the second flap 9 and push-bench；First cord rubber slab 6
With the second cord rubber slab 8 because of the sinciput of push-bench, also by push-bench top to certain angle, 6 He of the first cord rubber slab
The contact point of second cord rubber slab 8 and push-bench, is located at the side of the first flap 7 and the second flap 9, so just
The double-deck waterproofing design of first of waterproof layer is formd, can preferably realize waterproof effect of the invention.
As shown in Figure 1, in order to which preferably using the present invention, first Grouting Pipe 3 and the second Grouting Pipe 4 pass through Grouting Pipe
Road connection, the grouting pipe and external connection.The end of grouting pipe and external connection, grouting pipeline is equipped with pressure pump；It is logical
The effect of excess pressure pump, slurries can be easily transported to the first Grouting Pipe 3 or the second Grouting Pipe 4, make the present invention and top
Even if the cavity between pipe machine is by injection, to reach waterproof effect of the invention.
In order to preferably using the present invention, first Grouting Pipe 3 is equipped with the first valve of control nozzle switch, and described the
Two Grouting Pipes 4 are equipped with the second valve of control nozzle switch；The end of the grouting pipe is equipped with total valve.First valve,
The setting of two valves and total valve is conducive to process control of the present invention to injection slurries, obtains process of waterproof of the invention
Effectively control.
Before using the present invention, it should first determine the information such as engineering length, thickness of earth covering, the tube coupling number of use is determined with this
Amount and size；In addition, should also distinguish the clay distribution of engineering position before engineering starts, determines and excavate position, maximum limit
Degree ensures soil erosion will not will not occur because water burst gushes sand when engineering carries out, cause surface subsidence or collapse and draw
It plays traffic paralysis and push-bench is buried.
Specific implementation step of the present invention in practice of construction is as follows:
(1) the pre-buried L-type steel ring in advance when 1200mm inwall is constructed, steel loop whole width 7950mm, high 10700mm, steel
Ring thickness 10mm, within the walls steel loop ring width 900mm, face concordant with the side within the walls wide 150mm of steel loop, using 16@250 of three-level of L=50cm
Dowel is connected with inwall, while the zinc-plated Grouting Pipe of pre-buried 24 L-type DN15 in the middle part of steel loop within the walls, and tube head stretches out inwall
5cm；The pre-buried 24@250mm bolt hole of φ in the steel loop of the other side；
(2) first of cord rubber slab, the thickness of the first cord rubber slab 6 are fixed temporarily with M20*135mm stud
20mm, long 550mm；
(3) extension steel case is installed, wherein the first stationary annular pressing plate wide 170mm, thick 20mm, intermediate water-stopping steel ring width
200mm, thick 20mm, the second stationary annular pressing plate wide 150mm, thick 20mm are connected using continuous fillet weld between each other, and weld seam is high
6mm is spent, the zinc-plated Grouting Pipe of DN15 is reserved among intermediate steel plate for sealing water 13 in advance when prefabricated, is circumferentially evenly arranged 16；
(4) the first flap 7,7 turnover panel of the first flap 17 long 285mm, t=20mm are installed；
(5) use M20*135mm stud by pre-buried steel loop 1, the first cord rubber slab 6, extension steel case and the first folding
The fixation of page board 7 is tightened, screw-down torque 376N/m-502N/m；
(6) the second cord rubber slab 8, the second cord rubber slab 8 thickness 20mm, long 550mm are fixed temporarily with stud；
(7) third annular pressing plate 15 and the second flap 9, third annular pressing plate 15 width 170mm, thick 20mm, second are installed
9 turnover panel of flap 17 long 285mm, t=20mm；
(8) extension steel case, the second cord rubber slab 8, third annular pressing plate 15 and the second flap 9 are consolidated with stud
It is fixed, screw-down torque 376N/m-502N/m；
(9) twice wire brush 2 is set inside pre-buried steel loop 1, and 2 width of wire brush is divided into 100mm and two kinds of 200mm, high
Degree is 350mm, thickness 100mm, uses 200mm wide wire brush 2 in straightway, uses 100mm wide wire brush 2 in arc section,
Per pass wire brush 2 is fully welded with steel loop；
(10) grease is uniformly filled twice wire brush 2 is suitable for reading；
(11) Grouting Pipe is respectively adopted in the reserved Grouting Pipe of Grouting Pipe pre-buried among steel loop and intermediate sealing steel loop
Road is in parallel, and valve is arranged in each nozzle, and the first Grouting Pipe 3 is the first valve, and the second Grouting Pipe 4 is the second valve, injecting glue pipeline
Line end be arranged total valve, configure shield pressure pump；
(12) push-bench carry out sky push away, after cutterhead 20 all by the first cord rubber block after, push-bench abutting the first curtain
Cloth rubber block and the second cord rubber block are injected into twice cord rubber block and the cavity of push-bench formation using pressure pump and are starched
Liquid；
(13) push-bench continue sky be pushed into cutterhead 20 all by twice wire brush 2 after, push-bench abutting twice wire brush
2, slurries are injected into twice wire brush 2 and the cavity of push-bench formation using pressure pump；
(14) inert slurry is constantly injected in subsequent push pipe jack-in process, injection rate is controlled according to grouting pressure, it is ensured that
Portal device is in dynamic sealing state.
As shown in figure 4, after the present invention installs, push-bench preparation；As shown in figure 5, when cutterhead 20 starts to excavate
Afterwards, the head of push-bench passes through portal, water-tight device 19 and head contact, at this time the first Grouting Pipe and the second Grouting Pipe to
The wall injection slurries formed between water-tight device 19 and head；As shown in fig. 6, push-bench heads into tube coupling 21 in hole, at this time
First Grouting Pipe and the second Grouting Pipe still continuous grouting, while entering tube coupling 21 in hole, slurries realize dynamic to portal
Sealing.
During the concrete application of the present embodiment, pressure pump is grease pump, and the slurries used are inert slurry.The present invention
Actual ground is deposited within ± 15mm in this project, and starting end head reinforces surface subsidence range within ± 5mm, well
Control is carried out to surface subsidence, it is therefore prevented that the engineering is in actual operation because water burst or gush sand due to cause surface subsidence or collapse
It falls into；In addition, the present invention is on the basis of guaranteeing jacking construction portal ne-leakage, it is ensured that efficient operation, this engineering are only gone through
When 2 months, just complete be open to traffic.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are various under the inspiration of the present invention
The product of form, however, its shape or on make any variation, all skills fallen into the claims in the present invention confining spectrum
Art scheme, is within the scope of the present invention.
Claims (8)
1. a kind of large section rectangular top pipe originates portal dynamic water-proof device, which is characterized in that including pre-buried steel loop (1) and outside
Prolong steel case；The pre-buried steel loop (1) includes twice wire brush (2) and the first Grouting Pipe (3), and twice wire brush is equipped between (2)
The hole passed through for the first Grouting Pipe (3)；The middle part of the extension steel case is equipped with the second Grouting Pipe (4)；The extension steel case passes through
First fixing piece (5) is connected to the side of pre-buried steel loop (1) close to portal；It is set between the pre-buried steel loop (1) and extension steel case
There is the first cord rubber slab (6), the inside of extension steel case is equipped with the first flap (7), and the first flap (7) are fixed by first
Part (5) is connect with extension steel case；The extension steel case is equipped with the second cord rubber slab (8) and the second folding close to the side of portal
Plate (9), the second cord rubber slab (8) and the second flap (9) are connect by the second fixing piece (10) with extension steel case.
2. a kind of large section rectangular top pipe as described in claim 1 originates portal dynamic water-proof device, which is characterized in that every
A wire brush (2) is fully welded with pre-buried steel loop (1), and each wire brush (2) fills the grease for lubrication.
3. a kind of large section rectangular top pipe as described in claim 1 originates portal dynamic water-proof device, which is characterized in that institute
Stating extension steel case includes first annular pressing plate (11), the second annular pressing plate (12) and intermediate sealing steel loop (13), and three is mutually connected
Continuous fillet weld connection；Second Grouting Pipe (4) passes through the middle part of intermediate sealing steel loop (13).
4. a kind of large section rectangular top pipe as claimed in claim 3 originates portal dynamic water-proof device, which is characterized in that institute
It states pre-buried steel loop (1) and is equipped with connecting hole (14) closed at one end close to the inside of portal one end, first fixing piece (5) is successively
After the first flap (7), first annular pressing plate (11) and the first cord rubber slab (6), it is fixedly connected with connecting hole (14).
5. a kind of large section rectangular top pipe as claimed in claim 3 originates portal dynamic water-proof device, which is characterized in that institute
State the third annular pressing plate (15) being equipped between the second cord rubber slab (8) and the second flap (9) for enhancing sealing.
6. a kind of large section rectangular top pipe as described in claim 1 originates portal dynamic water-proof device, which is characterized in that institute
Stating the first flap (7) and the second flap (9) includes fixed plate (16) and turnover panel (17)；The fixed plate (16) passes through pin
Axis (18) is connect with turnover panel (17)；The fixed plate (16) connect with extension steel case, and turnover panel (17) is in rotation with pin shaft (18)
Heart rotation.
7. a kind of large section rectangular top pipe as described in claim 1 originates portal dynamic water-proof device, which is characterized in that institute
It states the first Grouting Pipe (3) and is connected to the second Grouting Pipe (4) by grouting pipe, the grouting pipe and external connection.
8. a kind of large section rectangular top pipe as claimed in claim 7 originates portal dynamic water-proof device, which is characterized in that institute
The first valve that the first Grouting Pipe (3) are equipped with control nozzle switch is stated, second Grouting Pipe (4) is equipped with control nozzle switch
Second valve；The end of the grouting pipe is equipped with total valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811624360.3A CN109441492A (en) | 2018-12-28 | 2018-12-28 | A kind of large section rectangular top pipe originates portal dynamic water-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811624360.3A CN109441492A (en) | 2018-12-28 | 2018-12-28 | A kind of large section rectangular top pipe originates portal dynamic water-proof device |
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| CN109441492A true CN109441492A (en) | 2019-03-08 |
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| CN201811624360.3A Pending CN109441492A (en) | 2018-12-28 | 2018-12-28 | A kind of large section rectangular top pipe originates portal dynamic water-proof device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500122A (en) * | 2019-08-22 | 2019-11-26 | 郑州市市政工程总公司 | Jacking construction hole waterproofing reinforcement structure and jacking construction hole water proofing and reinforcing method |
| CN111795207A (en) * | 2020-07-17 | 2020-10-20 | 中铁十二局集团有限公司 | Construction method for oversized starting well top pipe |
| CN112901221A (en) * | 2021-02-03 | 2021-06-04 | 中铁上海工程局集团有限公司 | Waterproof structure of ultra-large section rectangular pipe-jacking tunnel portal of underpass river |
| CN114192359A (en) * | 2021-12-17 | 2022-03-18 | 中铁隧道局集团有限公司 | Smearing device for hand-smearing type shield tail grease |
-
2018
- 2018-12-28 CN CN201811624360.3A patent/CN109441492A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500122A (en) * | 2019-08-22 | 2019-11-26 | 郑州市市政工程总公司 | Jacking construction hole waterproofing reinforcement structure and jacking construction hole water proofing and reinforcing method |
| CN110500122B (en) * | 2019-08-22 | 2024-04-12 | 郑州市市政工程总公司 | Waterproof reinforcing structure and waterproof reinforcing method for pipe-jacking construction hole |
| CN111795207A (en) * | 2020-07-17 | 2020-10-20 | 中铁十二局集团有限公司 | Construction method for oversized starting well top pipe |
| CN111795207B (en) * | 2020-07-17 | 2022-03-22 | 中铁十二局集团有限公司 | Construction method for oversized starting well top pipe |
| CN112901221A (en) * | 2021-02-03 | 2021-06-04 | 中铁上海工程局集团有限公司 | Waterproof structure of ultra-large section rectangular pipe-jacking tunnel portal of underpass river |
| CN114192359A (en) * | 2021-12-17 | 2022-03-18 | 中铁隧道局集团有限公司 | Smearing device for hand-smearing type shield tail grease |
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