CN208220785U - A kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device - Google Patents
A kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device Download PDFInfo
- Publication number
- CN208220785U CN208220785U CN201820710349.8U CN201820710349U CN208220785U CN 208220785 U CN208220785 U CN 208220785U CN 201820710349 U CN201820710349 U CN 201820710349U CN 208220785 U CN208220785 U CN 208220785U
- Authority
- CN
- China
- Prior art keywords
- grouting
- pipe
- slip casting
- grouting pipe
- shield
- Prior art date
- 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.)
- Active
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model provides a kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device, including cutter head of shield machine, grouting system, sealing device, monitoring system and shield machine computer；Grouting system includes boring note two-purpose tube, slip casting hose, dual-tube driller and grouting pump.Brill that the utility model is taken note one and bentonitic technical measures are infused simultaneously, effectively prevent stratum silt blocking injected hole and reduce ground disturbance, without first bore operation slip casting operation again, to increase substantially construction efficiency and reduce to ambient enviroment destruction；After shield machine reads soil pressure force value and water level value, grouting pressure and grouting pressure value are provided, and the technical solution working principle for providing timely emergency plan when water level abnormality value is clear, intelligence is high, high reliablity.The utility model uses stub boring pipe and intellectualized technology, largely solves the problems, such as the narrow space in tunnel and the concealment of underground engineering, ensure that the high efficiency and safety of shield-tunneling construction.
Description
Technical field
The utility model relates to the constructing devices in a kind of underground structrue engineering technical field, and in particular, to Yi Zhongzhi
It can early warning type earth pressure balanced shield, EPBS pre-grouting device.
Background technique
Shield method has the characteristics that working security is high, traffic above-ground is interfered less, surrounding environment influence is small, is Tunnel Engineering
Main form of construction work.When carrying out shield construction in the soft stratums such as silt soil strata, since soil strength is low, mobility
By force, the reasons such as thixotropy is big, can have an adverse effect to work progress such as the axial line controls of shield driving, easily cause stratum and become
Shape, destruction ambient enviroment etc..For above-mentioned adverse effect, conventional method generally uses surface grout injection reinforcement technique.But works as and encounter
When edpth of tunnel is complex compared with deep, underground construction condition or ground do not have execution conditions, grouting need to be used
Reinforcement technique.Therefore, effective underground reinforcing is carried out to the soft stratum in front of shield and is to ensure that the important of shield safe construction
One of work.
It finds by prior art documents, China Patent No. 201520021521.5, patent publication No. are as follows:
CN204492746U, patent name are as follows: a kind of multifunctional information grouting device, a kind of patent readme are as follows: " multifunctional information
Change grouting device, including at least two Grouting Pipes and a feed pipe in parallel with each Grouting Pipe, by controlling each Grouting Pipe
With the on-off of feed pipe and the feed material of feed pipe, single fluid grouting, two fluid grouting, pressure injection aggregate, single liquid-aggregate mixing are realized
Slip casting or biliquid-aggregate mixing slip casting ".The single fluid grouting application method of the patent readme is " using two single fluid grouting pumps, note
Connected by Grouting Pipe with ball check valve between stock pump and four-way pipe, and do not add aggregate in charging basket ", two fluid grouting user
Method is that " using a Double-liquid mud-injection pump or two single fluid grouting pumps, the Grouting Pipe of the different slurries of two migrations passes through spherical cut-off
Valve is connected on four-way pipe, and aggregate is not added in charging basket ", single liquid-aggregate mixing slip casting application method is " to pass through feed pipe
Fine aggregate or coarse aggregate are added into charging basket with charging ball valve, two Grouting Pipes are separately connected a grouting pump, or tear open and remove one
Grouting Pipe and its corresponding ball check valve are as spare relief valve ", biliquid-aggregate mixing slip casting application method is " to pass through
Feed pipe and charging ball valve add fine aggregate or coarse aggregate into charging basket, and grouting pump selects a biliquid pump or two single liquid pumps,
The Grouting Pipe of two different slurries of migration is connected on four-way pipe by ball check valve ", " moment, record was infused during slip casting
Pressure and unit grouting amount are starched, judges slip casting effect in conjunction with work slip casting method evaluation criterion ".Although grouting device described in the patent
Realize a variety of slurries mixing grouting process, but can not automatic conversion grouting process according to field condition；And described in the patent
Grouting device must can just carry out slip casting operation after the completion of bore operation, and construction efficiency is relatively low.The dress of slip casting described in the patent
Empirically determined grouting pressure is set, therefore grouting device described in the patent needs to be set in advance grouting mode and grouting pressure, note
Construction experience is starched, reliability is lower, there are hidden danger, and operation is cumbersome.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of intelligent early-warning formula earth pressure balanced shield, EPBSs
Pre-grouting device, the device change the traditional work mode that previous slip casting operation must carry out after bore operation, use
Novel drill infuses two-purpose tube and realizes bored grouting synchronization job, and by the way that check valve is arranged in pipe, it is ensured that stratum grouting pressure is full
Situations such as requiring enough, and preventing slurry reflux.
In order to achieve the above object, the utility model provides a kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device,
It include: cutter head of shield machine, grouting system, sealing device, monitoring system and shield machine computer；
The grouting system includes boring note two-purpose tube, slip casting hose, dual-tube driller and grouting pump, in which:
The brill note two-purpose tube is erected on cutter head of shield machine, including drill bit, the first Grouting Pipe, the first check valve, second
Grouting Pipe and second one-way valve, wherein the top of the first Grouting Pipe is arranged in drill bit, and the second Grouting Pipe is set in the first Grouting Pipe
It is interior, and the first check valve is arranged in the first Grouting Pipe, second one-way valve is arranged in the second Grouting Pipe；First Grouting Pipe
It is made of the drilling pipe of more head and the tail connections, first Grouting Pipe is used for the first slurries of formation injection；Second Grouting Pipe
Also it is made of the drilling pipe of more head and the tail connections, second Grouting Pipe is used for the second slurries of formation injection；
The dual-tube driller is connect with the tail end for boring note two-purpose tube；
The grouting pump is connect by the slip casting hose with the dual-tube driller, for pumping first slurries and
Two slurries；
The sealing device is set to brill the note two-purpose tube, the cutter head of shield machine junction, for sealing the brill
Infuse gap of the two-purpose tube on the cutter head of shield machine；
The monitoring system input is used to monitor water level, pressure and the flow at each position of grouting device, output end connection
To the shield machine computer.
Preferably, first Grouting Pipe is the first Grouting Pipe front end close to one end of the drill bit, close to described two-tube
One end of drilling machine is the first slip casting pipe end, is uniformly disposed with the first note on first drilling pipe of first Grouting Pipe front end
Hole is starched, arranges multiple grooves on second drilling pipe midpoint of first Grouting Pipe front end, multiple grooves are located at described the
One Grouting Pipe is same radially；
Second Grouting Pipe is the second Grouting Pipe front end close to one end of the drill bit, close to the dual-tube driller
One end is the second slip casting pipe end, has been evenly arranged the second injected hole, institute on first drilling pipe of second Grouting Pipe front end
The axis for stating the second injected hole is parallel to the axis of first Grouting Pipe；
There are gaps with first Grouting Pipe front end for second Grouting Pipe front end.
It is highly preferred that the first injected hole is a round hole, a diameter of first slip casting pipe outside diameter 1/8~1/5 is in plum
Flower-shape is uniformly distributed in the drilling pipe of first Grouting Pipe front end first.
It is highly preferred that the end of second Grouting Pipe front end, first drilling pipe is closed, and second injected hole
For a cylindrical hole, outer diameter is the second slip casting bore 1/8~1/5,2~3mm of wall thickness, 3~6mm of height, in quincunx
It is uniformly distributed in the drilling pipe of second Grouting Pipe front end first, axis is parallel to the axis of first injected hole.
Preferably, the monitoring system includes water-level gauge, earth pressure gauge, first pressure gauge, first-class scale, second pressure
Table, second scale, in which:
The water-level gauge is used to measure the hydraulic pressure of the first injected hole surrounding formation, positioned at the one of first Grouting Pipe
In a groove, while being connect by conducting wire with the shield computer；
The earth pressure gauge is used to measure the soil pressure of the first injected hole surrounding formation, positioned at first Grouting Pipe
In another groove, while being connect by conducting wire with the shield computer；
The first pressure gauge is used to measure the first slurry pressure of the grouting pump pumping, is connected to first slip casting
On hose, while being connect by conducting wire with the shield computer；
The first-class scale is used to measure the first slurry flow of the grouting pump pumping, is connected to first slip casting
On hose, while being connect by conducting wire with the shield computer；
The second pressure gauge is used to measure the second slurry pressure of the grouting pump pumping, is connected to second slip casting
On hose, while being connect by conducting wire with the shield computer；
The second scale is used to measure the second slurry flow of the grouting pump pumping, is connected to second slip casting
On hose, while being connect by conducting wire with the shield computer.
Preferably, the drill bit is a circular cone carbide drill, is used for bore operation, and base portion is welded in described first
On the drilling pipe port of Grouting Pipe front end first, base diameter is 5~8mm bigger than the first slip casting pipe outside diameter, and base portion axis is parallel
In the axis of first Grouting Pipe.
Preferably, the drilling pipe of first Grouting Pipe front end is welded in the base portion of the drill bit, after first Grouting Pipe
The drilling pipe at end is fixedly connected with the dual-tube driller, and every drill pipe length of first Grouting Pipe is 1~1.5m, wall thickness 2
~3mm.
Preferably, the drilling pipe of second Grouting Pipe rear end is fixedly connected with the dual-tube driller；Second Grouting Pipe
Front end and 0.1~0.2m of the first Grouting Pipe front interval, the drilling pipe and the dual-tube driller of second Grouting Pipe rear end
It is fixedly connected, every drill pipe length of second Grouting Pipe is 1~1.5m, and wall thickness is 2~3mm.
Preferably, the slip casting hose includes the first slip casting hose and the second slip casting hose, the first slip casting hose one
End connects the end drilling pipe of first Grouting Pipe, and the other end is connected to the grouting pump；Described second slip casting hose one end connects
The end drilling pipe of second Grouting Pipe is connect, the other end is connected to the grouting pump.
Preferably, the dual-tube driller moves back pipe operation for drilling and slip casting, is fixedly connected with first Grouting Pipe and institute
State the end drilling pipe of the second Grouting Pipe.
The working principle of the utility model are as follows: firstly, bore operation is carried out using brill note two-purpose tube, described second
It is injected under the bentonite slurry of certain pressure and the supporting of first Grouting Pipe in Grouting Pipe, silt in stratum is avoided to enter institute
State in the first Grouting Pipe and second Grouting Pipe and then block first injected hole and second injected hole；Secondly, institute
Shield computer is stated according to the measured value for the earth pressure gauge for being mounted on first Grouting Pipe, assigns grouting process and slip casting
Pressure instruction, while when the measured value exception of the water-level gauge, the shield computer assigns instruction to the slip casting immediately
Pump carries out two fluid grouting operation, timely sealing；Finally, due to the slurries list of first check valve and the second one-way valve
To flow behavior, when ensure that pipe operation simultaneously is moved back on marginal not slurry side, stratum slurry pressure is constant and slurries will not flow back.
Compared with prior art, the utility model have it is following the utility model has the advantages that
Brill that the utility model is taken note one and bentonitic technical measures are infused simultaneously, effectively prevent the blocking of stratum silt
Injected hole and reduction ground disturbance, without first bore operation slip casting operation again, to increase substantially construction efficiency and reduction pair
Ambient enviroment destroys.
Utility model device setting grouting pressure, the conversion processes such as slip casting can use intelligence control system (such as
Shield machine computer) realize automatic operation, grouting and reinforcing operation safety is effectively ensured and efficiently carries out.
The check valve that the utility model uses when guaranteeing slip casting operation, retreats the novel intelligent and bores note two-purpose tube operation
It can carry out simultaneously, and then reduce operation difficulty and accelerate construction progress.The utility model uses stub boring pipe and intellectualized technology,
It largely solves the problems, such as the narrow space in tunnel and the concealment of underground engineering, ensure that the high efficiency of shield-tunneling construction
And safety.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is that note two-purpose tube sectional view is bored in one preferred embodiment of the utility model；
Fig. 2 is the C-C sectional view shown in FIG. 1 for boring note two-purpose tube；
Fig. 3 is the D-D sectional view shown in FIG. 1 for boring note two-purpose tube；
Fig. 4 is overall structure diagram in one preferred embodiment of the utility model；
In figure:
1 it is drill bit, 2 be the first Grouting Pipe, 201 be the first injected hole, 202 be the first check valve, 203 is first pressure
Table, 204 be first-class scale, 205 be the first slip casting hose, 3 be the second Grouting Pipe, 301 be the second injected hole, 302 be second
Check valve, 303 be second pressure gauge, 304 be second scale, 305 be the second slip casting hose, 4 be water-level gauge, 5 be soil pressure
Meter, 6 be cutter head of shield machine, 7 be sealing device, 701 be sealing flange, 702 be bolt, 703 be normally close valve, 704 be fixed
Casing, 8 be dual-tube driller, 9 be grouting pump, 10 be shield computer.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These are all within the protection scope of the present invention.
As shown in Figures 1 to 4, show for a kind of preferred embodiment of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device
It is intended to.
Referring to shown in Fig. 4, a kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device, comprising: cutter head of shield machine 6,
Grouting system, sealing device 7, monitoring system and shield machine computer；
The grouting system includes boring note two-purpose tube, slip casting hose, dual-tube driller 8 and grouting pump 9, in which:
Note two-purpose tube is bored, is erected on cutter head of shield machine 6, including drill bit 1, the first Grouting Pipe 2, the first check valve 202, the
Two Grouting Pipes 3, second one-way valve 302, wherein the top of the first Grouting Pipe 2 is arranged in drill bit 1, and the second Grouting Pipe 3 is set in
In one Grouting Pipe 2, and the first check valve 202 is arranged in the first Grouting Pipe 2, and second one-way valve 302 is arranged in the second Grouting Pipe 3
Interior, first Grouting Pipe 2 is made of the drilling pipe of more head and the tail connections, and first Grouting Pipe 2 is used for formation injection first
Slurries；Second Grouting Pipe 3 is also made of the drilling pipe of more head and the tail connections, and second Grouting Pipe 3 is used for formation injection
Second slurries；Referring in particular to shown in Fig. 1-3；
Dual-tube driller 8 is connect with the tail end for boring note two-purpose tube；
Grouting pump 9 is connect by the slip casting hose with the dual-tube driller 8, for pumping first slurries and
Two slurries；
The sealing device 7 is set to brill the note two-purpose tube, 6 junction of the cutter head of shield machine, described for sealing
Bore gap of the note two-purpose tube 7 on the cutter head of shield machine 6；
The monitoring system input is used to monitor water level, pressure and the flow at each position of grouting device, output end connection
To the shield machine computer.
The drill bit 1 is used for bore operation, described in the preferred embodiment of the utility model part referring to Fig.1 shown in -4
1 base portion of drill bit is welded on the drilling pipe port of front end first of first Grouting Pipe 2, and drill bit 1 is a circular cone carbide drill
Head, base diameter are 5~8mm bigger than 2 outer diameter of the first Grouting Pipe, and axis is parallel to the axis of first Grouting Pipe 2.
In one embodiment, the drill bit 1 is a circular cone carbide drill, base diameter 55mm, crown height
200mm。
Referring to Fig.1 shown in -4, in the preferred embodiment of the utility model part, first Grouting Pipe 2 is used for stratum
The first slurries are injected, is made of the drilling pipe of more head and the tail connections, is disposed with the first note on the drilling pipe of the first Grouting Pipe 2 front end first
Hole 201 is starched, arranges that 2 grooves, 2 grooves are located at first note on the drilling pipe midpoint of the first Grouting Pipe 2 front end second
It is same radially to starch pipe 2.The drilling pipe of first Grouting Pipe, 2 front end is welded in the base portion of the drill bit 1, first Grouting Pipe
The drilling pipe of 2 rear ends is fixedly connected with the dual-tube driller 8, and every drill pipe length of first Grouting Pipe 2 is 1~1.5m, wall
Thickness is 2~3mm.In one embodiment, first Grouting Pipe 2 be more root timber matter be use Q235 steel, outer diameter 50mm,
The straight steel pipe composition that wall thickness is 2.5mm, length is 1m；
Referring to Fig.1 shown in -4, in the preferred embodiment of the utility model part, first injected hole 201 is uniformly distributed
On the drilling pipe of the front end of first Grouting Pipe 2 first；First injected hole 201 is a round hole, a diameter of described
First Grouting Pipe, 2 outer diameter 1/8~1/5, in quincunx first drilling pipe in the front end for being uniformly distributed in first Grouting Pipe 2.?
In one specific embodiment, first injected hole 201 is the round hole that a diameter is 6mm.
Referring to Fig.1 shown in -4, in the preferred embodiment of the utility model part, first check valve 202 refers to slurries
It can only flow into along import, be flowed out from outlet, it can not be from outlet return.First check valve 202 is a straight check valve,
Inside nominal diameter is identical with 2 internal diameter of the first Grouting Pipe, connect first Grouting Pipe 2 the drilling pipe of front end first and second
Between drilling pipe.In one embodiment, the through type that first check valve 202 is threaded connection, nominal diameter is 50mm
Check valve, maximum working pressure (MWP) 30MPa.
Second Grouting Pipe 3 is used to penetrate slurries to stratum note second, is made of the drilling pipe of more head and the tail connections, front end
The second injected hole 301 is disposed on first drilling pipe.Second Grouting Pipe 3 is located inside first Grouting Pipe 2, axis
It is parallel to the axis of first Grouting Pipe 2,2 front interval 0.1 of 3 front end of the second Grouting Pipe and first Grouting Pipe~
The drilling pipe of 0.2m, 3 rear end of the second Grouting Pipe are fixedly connected with the dual-tube driller 8, every brill of second Grouting Pipe 3
Length of tube is 1~1.5m, and wall thickness is 2~3mm.In one embodiment, it is use that second Grouting Pipe 3, which is multistage material,
The straight steel pipe composition that Q235 steel, outer diameter 34mm, wall thickness 2.5mm, length are 1m.
Referring to Fig.1 shown in -4, in the preferred embodiment of the utility model part, second injected hole 301 is uniformly distributed
On the drilling pipe of the front end of second Grouting Pipe 3 first；The end of first drilling pipe in front end of second Grouting Pipe 3 is closing
, the second injected hole 301 is a cylindrical hole, and outer diameter is 3 internal diameter 1/8~1/5 of the second Grouting Pipe, and 2~3mm of wall thickness is high
3~6mm is spent, in quincunx first drilling pipe in the front end for being uniformly distributed in second Grouting Pipe 3, axis is parallel to described the
The axis of one injected hole 201.In one embodiment, the second injected hole 301 be an internal diameter be 5mm, wall thickness 2.5mm, height
The cylindrical hole of 4mm.
Referring to Fig.1 shown in -4, in the preferred embodiment of the utility model part, the second one-way valve 302 refers to slurries
It can only flow into along import, be flowed out from outlet, it can not be from outlet return.The second one-way valve 302 is a straight check valve,
Inside nominal diameter is identical with 3 internal diameter of the second Grouting Pipe, connect second Grouting Pipe 3 the drilling pipe of front end first and second
Between drilling pipe.In one embodiment, the through type that second one-way valve 302 is threaded connection, nominal diameter is 50mm is unidirectional
Valve, maximum working pressure (MWP) 30MPa
Referring to Fig.1 shown in -4, in the preferred embodiment of the utility model part, slip casting hose includes the first slip casting hose
205 and the second slip casting hose 305, the first slip casting hose 205 connect first slip casting for conveying the first slurries, one end
The end drilling pipe of pipe 2, the other end are connected to the grouting pump 9；The second slip casting hose 305 for convey the second slurries, one
End connects the end drilling pipe of second Grouting Pipe 3, and the other end is connected to the grouting pump 9.The first slip casting hose 205 is long
Degree is 5~10m, and internal diameter is identical with 2 outer diameter of the first Grouting Pipe；Second slip casting hose, 305 length is 5~10m,
Internal diameter is identical with 3 outer diameter of the second Grouting Pipe.In one embodiment, 205 material of the first slip casting hose is rubber hose,
Length is 5m, internal diameter 50mm.Second slip casting hose, 305 material is rubber hose, length 5m, internal diameter 40mm.
Referring to Fig.1 shown in -4, in the preferred embodiment of the utility model part, dual-tube driller 8 is moved back for drilling and slip casting
Pipe operation is fixedly connected with the end drilling pipe of first Grouting Pipe 2 and second Grouting Pipe 3.The dual-tube driller is two-tube
Single action drilling machine, most wammel depth 50m.It is specific: the 8 model XPL-35 of dual-tube driller；
Referring to Fig.1 shown in -4, in the preferred embodiment of the utility model part, grouting pump 9 for pump the first slurries or
Second slurries are connect by the slip casting hose with the dual-tube driller 8, and in one embodiment, grouting pump 9 is stepless-adjustment
Save the hydraulic reciprocating grouting pump of plasma discharge amount and plasma discharge pressure, maximum grouting pressure 6MPa, 9 model GHYZ140/6- of grouting pump
7.5, rated operating pressure 6MPa.
The sealing device is used to seal the gap for boring note two-purpose tube on cutterhead.Referring to shown in Fig. 4, in the utility model
In the preferred embodiment of part, the sealing device 7 includes sealing flange 701, bolt 702, normally close valve 703 and fixed sleeving
704 compositions.
The sealing flange 701 is used to connect cutterhead, seals the soil body and slurries before shield machine, by gasket and method
Blue disk composition, gasket is polytetrafluoroethylene (PTFE) cylinder-packing rubber pad, and size and the ring flange match；Ring flange is screw thread method
Orchid, inside nominal diameter are 5~12mm bigger than 2 outer diameter of the first Grouting Pipe, the reserved slip casting of screw thread pore size and the cutterhead
Hole inside nominal diameter is identical, and maximum gauge is 18~26mm.In one embodiment: 701 nominal of sealing flange is logical
Diameter is 60mm.
The sealing flange is fixed on 6 outer surface of cutterhead of shield machine by bolt 702, bolt specification and the cutterhead
Reserved injected hole inside nominal diameter is identical to match, and length is 2 times of the ring flange maximum gauge.In a specific embodiment
In: the bolt uses the coarse thread spiral shell that low-carbon alloy steel, nominal diameter 12mm, screw pitch 1.75mm, spiro rod length are 80mm
Bolt.
Normally close valve 703 is used to close the gap of the fixed sleeving and first Grouting Pipe, is connected to the fixing sleeve
The rear end of pipe.The normally close valve is a solenoid valve, is closed state under normal operating conditions.In one embodiment: normally closed
Valve 703 is an electromagnetism normally close valve.
Fixed first Grouting Pipe 2 of fixed sleeving 704, the front end sealing flange of the fixed sleeving 704
701 and the bolt 702 be fixed on 6 outer surface of the cutterhead of shield machine.The fixed sleeving 704 is a straight steel pipe,
Internal diameter is 5~8mm bigger than 2 outer diameter of the first Grouting Pipe, and length is 0.8m~1m, 2~3mm of wall thickness.In one embodiment:
The fixed sleeving 704 uses the straight steel pipe that Q235 steel, outer diameter 65mm, wall thickness 2.5mm, length are 0.8m for one.
The monitoring system is used to monitor water level, pressure and the flow at each position of grouting device, referring to Fig.1 shown in -4,
In the preferred embodiment of the utility model part, including water-level gauge 4, earth pressure gauge 5, first pressure gauge 203, first-class scale 204,
Second pressure gauge 303, second scale 304, in which:
Water-level gauge 4 is a pressure type water gauge for making sensor with solid-state piezo-resistance device, for measuring first slip casting
The hydraulic pressure of 201 surrounding formation of hole in a groove of first Grouting Pipe 2, while passing through conducting wire and the shield meter
Calculation machine 10 connects.In one embodiment, the 4 model DATA-5101 of water-level gauge, highest head 50m.
Earth pressure gauge 5 is a type vibration wire earth pressure gauge, for measuring the soil pressure of 201 surrounding formation of the first injected hole,
It is connect in another groove of first Grouting Pipe 2, while through conducting wire with the shield computer 10.In a tool
In body embodiment, 5 model VWE-1 of earth pressure gauge, range is 0~1MPa.
First pressure gauge 203 is a pressure gauge with digital display, the first slurries pressure pumped for measuring the grouting pump 9
Power is connected on the first slip casting hose 205, while being connect by conducting wire with the shield computer 10.It is specific real one
It applies in example, first pressure gauge 203 is the precision pressure gauge of Pu Site, and range is 0~2MPa.
First-class scale 204 is a pressure gauge with digital display, the first slurry stream pumped for measuring the grouting pump 9
Amount, is connected on the first slip casting hose 205, while being connect by conducting wire with the shield computer 10.It is specific real one
It applies in example, first-class scale 204 is the electromagnetic flowmeter of Pu Site, maximum range 400m3/min。
Second pressure gauge 303 is a pressure gauge with digital display, the second slurries pressure pumped for measuring the grouting pump 9
Power is connected on the second slip casting hose 305, while being connect by conducting wire with the shield computer 10.It is specific real one
It applies in example, second pressure gauge 303 is the precision pressure gauge of Pu Site, and range is 0~2MPa.
Second scale 304 is a pressure gauge with digital display, the second slurry stream pumped for measuring the grouting pump 9
Amount, is connected on the second slip casting hose 305, while being connect by conducting wire with the shield computer 10.It is specific real one
It applies in example, second scale 304 is the electromagnetic flowmeter of Pu Site, maximum range 400m3/min。
The shield machine computer 10 is used to collect hydraulic pressure, soil pressure and the slurries of 201 surrounding formation of the first injected hole
The information such as pressure, flow, after information analysis and judgment, determine grouting pressure, grouting amount and grouting process and assign instruction to
The grouting pump 9.Shield computer 10 is the PLC that balancing earth-pressure shielding machine carries.In one embodiment, shield computer
The 10 S7-PLC automatic control systems included for extra large Rake balancing earth-pressure shielding machine.
The utility model above-described embodiment effectively prevent stratum silt blocking injected hole and reduces ground disturbance, is not necessarily to subdrilling
Operation slip casting operation again in hole destroys ambient enviroment to increase substantially construction efficiency and reduce；The shield meter taken
When after calculation machine 10 reads soil pressure force value and water level value, assigning grouting process and grouting pressure instruction, and providing water level abnormality value and
When emergency plan technical solution working principle is clear, intelligent high, high reliablity.
The check valve that the utility model above-described embodiment uses guarantees that stratum slurry pressure is constant when slip casting, replaces described
Novel drill note two-purpose tube operation can carry out simultaneously, and then reduce operation difficulty and accelerate construction progress.
To sum up, pre-grouting device in intelligent early-warning formula EPB shield tunneling Tunnel provided by the utility model, work are former
Clear, easy to operate, high reliablity, construction intelligence science are cleared, slip casting job step, science provide again without first bore operation
Grouting pressure and flow rate of grouting value intelligently avoid high pressure water dangerous, and pipe operation is moved back on marginal not slurry side, largely solve tunnel
Narrow space and underground engineering concealment problem, to increase substantially construction efficiency and working security.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the utility model.
Claims (10)
1. a kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device, which is characterized in that including cutter head of shield machine, slip casting system
System, sealing device, monitoring system and shield machine computer；
The grouting system includes boring note two-purpose tube, slip casting hose, dual-tube driller and grouting pump, in which:
The brill note two-purpose tube is erected on cutter head of shield machine, including drill bit, the first Grouting Pipe, the first check valve, the second slip casting
Pipe and second one-way valve, wherein the top of the first Grouting Pipe is arranged in drill bit, and the second Grouting Pipe is set in the first Grouting Pipe, and
First check valve is arranged in the first Grouting Pipe, and second one-way valve is arranged in the second Grouting Pipe；First Grouting Pipe is by more
The drilling pipe composition of root head and the tail connection, first Grouting Pipe are used for the first slurries of formation injection；Second Grouting Pipe also by
The drilling pipe composition of more head and the tail connections, second Grouting Pipe are used for the second slurries of formation injection；
The dual-tube driller is connect with the tail end for boring note two-purpose tube；
The grouting pump is connect by the slip casting hose with the dual-tube driller, for pumping first slurries and the second slurry
Liquid；
The sealing device is set to brill the note two-purpose tube, the cutter head of shield machine junction, double for sealing the brill note
With gap of the pipe on the cutter head of shield machine；
The monitoring system input is used to monitor water level, pressure and the flow at each position of grouting device, and output end is connected to institute
State shield machine computer.
2. intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device according to claim 1, which is characterized in that described
One Grouting Pipe is the first Grouting Pipe front end close to one end of the drill bit, is the first slip casting close to one end of the dual-tube driller
Pipe end is uniformly disposed with the first injected hole, first Grouting Pipe on first drilling pipe of first Grouting Pipe front end
Multiple grooves are arranged on second drilling pipe midpoint of front end, it is same radially that multiple grooves are located at first Grouting Pipe；
Second Grouting Pipe is the second Grouting Pipe front end close to one end of the drill bit, close to one end of the dual-tube driller
For the second slip casting pipe end, it is evenly arranged the second injected hole on first drilling pipe of second Grouting Pipe front end, described
The axis of two injected holes is parallel to the axis of first Grouting Pipe；
There are gaps with first Grouting Pipe front end for second Grouting Pipe front end.
3. intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device according to claim 2, which is characterized in that described
One injected hole be a round hole, the 1/8~1/5 of a diameter of first slip casting pipe outside diameter, be uniformly distributed in institute in quincunx
It states on first drilling pipe of the first Grouting Pipe front end.
4. intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device according to claim 2, which is characterized in that described
The end of two first drilling pipe in Grouting Pipe front end is closed, and second injected hole is a cylindrical hole, and outer diameter is described
The 1/8~1/5 of second slip casting bore is uniformly distributed in the drilling pipe of second Grouting Pipe front end first, axis in quincunx
Line is parallel to the axis of first injected hole.
5. intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device according to claim 2, which is characterized in that the prison
Examining system includes water-level gauge, earth pressure gauge, first pressure gauge, first-class scale, second pressure gauge, second scale, in which:
The water-level gauge is used to measure the hydraulic pressure of the first injected hole surrounding formation, and one positioned at first Grouting Pipe is recessed
In slot, while being connect by conducting wire with the shield computer；
The earth pressure gauge is used to measure the soil pressure of the first injected hole surrounding formation, in addition positioned at first Grouting Pipe
In one groove, while being connect by conducting wire with the shield computer；
The first pressure gauge is used to measure the first slurry pressure of the grouting pump pumping, is connected to the first slip casting hose
On, while being connect by conducting wire with the shield computer；
The first-class scale is used to measure the first slurry flow of the grouting pump pumping, is connected to the first slip casting hose
On, while being connect by conducting wire with the shield computer；
The second pressure gauge is used to measure the second slurry pressure of the grouting pump pumping, is connected to the second slip casting hose
On, while being connect by conducting wire with the shield computer；
The second scale is used to measure the second slurry flow of the grouting pump pumping, is connected to the second slip casting hose
On, while being connect by conducting wire with the shield computer.
6. intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device according to claim 2, which is characterized in that the brill
Head is a circular cone carbide drill, and base portion is welded on the drilling pipe port of first Grouting Pipe front end first, and base portion is straight
Diameter is bigger than the first slip casting pipe outside diameter, and base portion axis is parallel to the axis of first Grouting Pipe.
7. according to the described in any item intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting devices of claim 2-6, feature exists
In first drilling pipe of first Grouting Pipe front end is welded in the base portion of the drill bit, and first Grouting Pipe rear end is most
Latter drilling pipe is fixedly connected with the dual-tube driller.
8. according to the described in any item intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting devices of claim 2-6, feature exists
In last root drilling pipe of second Grouting Pipe rear end is fixedly connected with the dual-tube driller.
9. intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device according to claim 1-6, feature exist
In, the slip casting hose include the first slip casting hose and the second slip casting hose, the first slip casting hose one end connection described the
The end drilling pipe of one Grouting Pipe, the other end are connected to the grouting pump；Described second slip casting hose one end connects second note
The end drilling pipe of pipe is starched, the other end is connected to the grouting pump.
10. intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device according to claim 1-6, feature exist
In the dual-tube driller moves back pipe operation for drilling and slip casting, is fixedly connected with first Grouting Pipe and second Grouting Pipe
End drilling pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820710349.8U CN208220785U (en) | 2018-05-13 | 2018-05-13 | A kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820710349.8U CN208220785U (en) | 2018-05-13 | 2018-05-13 | A kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208220785U true CN208220785U (en) | 2018-12-11 |
Family
ID=64511507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820710349.8U Active CN208220785U (en) | 2018-05-13 | 2018-05-13 | A kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208220785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116558696A (en) * | 2023-07-11 | 2023-08-08 | 中铁十四局集团大盾构工程有限公司 | Water and soil pressure monitoring system and method for shield construction process |
-
2018
- 2018-05-13 CN CN201820710349.8U patent/CN208220785U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116558696A (en) * | 2023-07-11 | 2023-08-08 | 中铁十四局集团大盾构工程有限公司 | Water and soil pressure monitoring system and method for shield construction process |
| CN116558696B (en) * | 2023-07-11 | 2023-09-26 | 中铁十四局集团大盾构工程有限公司 | Water and soil pressure monitoring system and method for shield construction process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106761835B (en) | A kind of Karst Tunnel leak segmenting slip casting construction method | |
| CN109723404A (en) | Coal measure gas prospect pit naked eye device for plugging and method | |
| CN109653707B (en) | Method for dewatering and increasing oil by filling packing body particles in oil and gas well of fractured oil and gas reservoir | |
| CN101021162A (en) | Overlying strata separation layer grouting filling device and grouting filling system | |
| CN102628352B (en) | Multi-section fixed point hydraulic fracturing method | |
| CN101975041B (en) | Well cementing method for avoiding coal bed and device thereof | |
| CN108756910A (en) | A kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device and construction method | |
| CN105507940A (en) | Slotting, plugging and fracturing integrated type intensified marsh gas extraction device and method | |
| CN113250670B (en) | Single-hole multi-section synchronous control fracturing coal body permeability increasing system and method | |
| CN106437612A (en) | Horizontal gas extraction drilling and hole-sealing method and hole-sealing structure thereof | |
| CN108868825A (en) | The big water yield drilling rapid plugging method of high pressure | |
| CN110344784A (en) | A kind of gushing water controlling device of the nearly horizontal orientation drilling of mine | |
| CN107313744A (en) | A kind of small guide hole grouting and reinforcing coal bed gas well passes through the construction method in goaf | |
| CN107217987A (en) | Colliery flood administers well boring method | |
| CN204677155U (en) | A kind of down-hole coal bed high strength rapid drilling hole sealing device | |
| CN208220785U (en) | A kind of intelligent early-warning formula earth pressure balanced shield, EPBS pre-grouting device | |
| CN108756883A (en) | A kind of coal mine tight roof slip casting fracturing process and system | |
| CN101319604B (en) | Inverse squeezing tie-back sealing plug | |
| CN106351603B (en) | A kind of crack or solution cavity severe leakage blocking method and plugging material are sent into pipe string | |
| CN209556980U (en) | Coal measure gas prospect pit naked eye device for plugging | |
| CN207406342U (en) | A kind of filling system for the post processing of caisson wall wall | |
| CN201196059Y (en) | Oil well cementing system | |
| CN108843371B (en) | It is a kind of based on the coal seam subregion Dynamic Water Injection process for adopting release | |
| CN201245826Y (en) | Grouting apparatus for casing tube grouting method | |
| CN205477511U (en) | Prevent releasing hydraulic fracturing hole sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |