CN105673044B - A kind of construction method and system that secondary grouting quality is improved for shield-tunneling construction - Google Patents
A kind of construction method and system that secondary grouting quality is improved for shield-tunneling construction Download PDFInfo
- Publication number
- CN105673044B CN105673044B CN201510785110.8A CN201510785110A CN105673044B CN 105673044 B CN105673044 B CN 105673044B CN 201510785110 A CN201510785110 A CN 201510785110A CN 105673044 B CN105673044 B CN 105673044B
- Authority
- CN
- China
- Prior art keywords
- slip casting
- grouting
- waterglass
- pipe
- cement
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 50
- 238000007569 slipcasting Methods 0.000 claims abstract description 135
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 116
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 116
- 239000004568 cement Substances 0.000 claims abstract description 105
- 238000003756 stirring Methods 0.000 claims abstract description 93
- 239000002002 slurry Substances 0.000 claims abstract description 75
- 239000011440 grout Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 30
- 210000004911 serous fluid Anatomy 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000002474 experimental method Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 77
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 230000015572 biosynthetic process Effects 0.000 claims description 20
- 238000005086 pumping Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 239000008399 tap water Substances 0.000 claims description 13
- 235000020679 tap water Nutrition 0.000 claims description 13
- 239000011435 rock Substances 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 12
- 230000035699 permeability Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 241000883990 Flabellum Species 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 230000008595 infiltration Effects 0.000 claims description 7
- 238000001764 infiltration Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 5
- 210000000481 breast Anatomy 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 8
- NBGBEUITCPENLJ-UHFFFAOYSA-N Bunazosin hydrochloride Chemical compound Cl.C1CN(C(=O)CCC)CCCN1C1=NC(N)=C(C=C(OC)C(OC)=C2)C2=N1 NBGBEUITCPENLJ-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 241000256135 Chironomus thummi Species 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention provides a kind of construction method and system that secondary grouting quality is improved for shield-tunneling construction, including：The first step, determine construction field geology situation；Second step, determine that grouting serous fluid matches, and carries out size performance experiment；3rd step, determine grouting pressure P and grouting amount Q；4th step, injected hole perforate simultaneously connect semi-automatic slip casting table system；5th step, prepare grouting serous fluid, progress secondary grouting by semi-automatic slip casting table system；6th step, rinse Grouting Pipe and Y-type three way type pipe fitting.The method of the invention relies on the semi-automatic slip casting table system, realize the automatic stirring function of cement grout and waterglass slurries and the semi-automatic addition function of injecting paste material, manpower and the time of secondary grouting are effectively saved, improves accuracy, the uniformity coefficient and slip casting efficiency of grouting serous fluid of grouting serous fluid allotment.
Description
Technical field
The present invention relates to the construction technology in a kind of underground structrue engineering technical field, and in particular, to one kind is used for shield
Structure construction improves the construction method and system of secondary grouting quality.
Background technology
Shield method is common construction method in Tunnel Engineering.Shield method is to utilize the soil in cutter head of shield machine cutting stratum
Body, tunnel is transported by the dregs after cutting, while shield machine pushes ahead the construction method for reaching tunnel excavation purpose.In shield
During machine is pushed ahead, section of jurisdiction progressively disengages shield body at shield tail, and making section of jurisdiction, there are gap with ground interlayer, it is therefore desirable to utilizes
Slurry injection technique blocks gap.Synchronous grouting be synchronously to gap slip casting during being pushed ahead in tunnel, when synchronous grouting over the ground
When layer settlement Control effect is poor, secondary grouting need to be carried out into stratum.Secondary grouting is using the injected hole on section of jurisdiction, by water
Mud and waterglass slurry injection section of jurisdiction surrounding formation carry out the grouting method of secondary plugging, and secondary grouting is to Shield Tunneling
Engineering is of great significance, and can not only effectively block gap around section of jurisdiction, moreover it is possible to which effectively control section of jurisdiction is floated, and ensures construction peace
Entirely.Traditional secondary grouting mode is by being noted in ground transport to tunnel using gantry crane and battery truck by grouting equipment and material
Point is starched, slip casting is completed after artificial mixing-filling material.The time cost of this grouting mode can deeply getting over tunnel excavation
Come higher, the method for artificial mixing-filling material is difficult to ensure that the overall performance index and homogeneity of grouting serous fluid；Traditional secondary
Order is pure really relies on Conventional wisdom to grouting pressure for the method for slip casting, it is difficult to adapts to Different Strata condition.Therefore tradition is improved
Slurry injection technique is beneficial to improve the construction efficiency of Shield Tunneling, reduces stratum settlement, protects ring around construction site
Border.
Find by prior art documents, China Patent No. 201210058955.3, patent publication No. is：
103306684A, patent name are：Shield duct piece back-grouting technique, the patent readme are：" secondary grouting technique：Pass through pipe
Piece secondary grouting hole carries out secondary filling, encryption to section of jurisdiction injection dual slurry behind to section of jurisdiction behind gap " described in the patent
In secondary grouting technique, the definite of grouting pressure relies on Conventional wisdom, it is difficult to adapts to different geological conditions, which only sketches
The parameter of slip casting, does not describe the construction procedure of secondary grouting and proposes Grouting Pipe plugging way to solve the problem.
The content of the invention
For in the prior art the defects of, the object of the present invention is to provide one kind be used for shield-tunneling construction improve secondary grouting matter
The construction method and system of amount, this method and system overcome the definite by warp of secondary grouting pressure existing in the prior art
Test, Grouting Pipe and the shortcomings of tee pipe fitting easily blocks, secondary grouting plugging effect is unstable and deficiency, improve applying for secondary grouting
Working medium amount.
According to an aspect of the present invention, there is provided a kind of construction method that secondary grouting quality is improved for shield-tunneling construction,
The construction method includes the following steps：
The first step, determine construction field geology situation：
Geologic prospect report is consulted, determines soil layer division information, the underground water severe γ of slip casting position surrounding formationw,
Lower water initial water level depth Hw, country rock grade m, slip casting position surrounding formation coefficient of permeability K, tunnel bottom buried depth H and slip casting position
Put buried depth h；
Second step, determine that grouting serous fluid matches, and carries out size performance experiment：
(1) water and cement quality ratio are 1 in cement grout：A, water and waterglass magma volume ratio are B in waterglass slurries：
1, the A and B are determined according to the value range of slip casting position surrounding formation coefficient of permeability K；Cement grout and waterglass slurries structure
Into grouting serous fluid, the volume ratio of cement grout and waterglass slurries is 1 in grouting serous fluid：1；
(2) matched according to grouting serous fluid and prepare cement grout and grouting serous fluid, measure the severe γ of cement groutsWith it is viscous
Coefficient μ；3rd step, determine grouting pressure P and grouting amount Q：
Grouting pressure P meets following formula：
Wherein：β is formation capacity, γwFor underground water severe, h is slip casting position buried depth, HwFor underground water initial water locating depth
Degree, n be the soil body number of plies, and μ is the coefficient of viscosity of cement grout, γsFor the severe of cement grout, H is tunnel bottom buried depth；
Grouting amount Q meets the following formula：
Wherein：α is slip casting loss coefficient, and K is slip casting position surrounding formation infiltration coefficient, and P is grouting pressure, and μ is cement
The coefficient of viscosity of slurries；
4th step, injected hole perforate simultaneously connect semi-automatic slip casting table system：
(1) mounting ball valve switchs at injected hole, keeps ball valve to open completely；
(2) air drill driver drilling rod is stretched into injected hole, opens air drill machine, drill through residual thickness section of jurisdiction after injected hole, close wind
Drilling machine, when having mud outflow in injected hole, withdraws from air drill machine, completely closes ball valve；
(3) ball valve interface mud is rinsed with clear water, connects the main interface and ball valve interface of Y-type three way type pipe fitting, connect Y tri-
Logical two stub interfaces and two slip casting interface tubes；
(4) semi-automatic slip casting table system is connected；
5th step, prepare grouting serous fluid, progress secondary grouting by semi-automatic slip casting table system.
Preferably, in the first step, the soil layer division information, including soil body number of plies n, i-th layer of native effective unit weight γiWith
More than slip casting position each layer soil thickness hi。
Preferably, in (1) of second step, the A and B are according to the value range of slip casting position surrounding formation coefficient of permeability K
Determine, specifically：
As K ＜ 5 × 10-5M/s, A value 0.8, B values 5；
When 5 × 10-5M/s ＜ K ＜ 2 × 10-4M/s, A value 1, B values 4；
As K ＞ 2 × 10-4M/s, A value 1.2, B values 3.
Preferably, in (2) of second step, the severe γ of the cement groutsAdd for cement grout density and local gravity
The product of speed.
Preferably, in (2) of second step, the coefficient of viscosity μ reflection cement grouts of the cement grout flow in Grouting Pipe
The size of suffered viscosity resistance when dynamic, the coefficient of viscosity is bigger, and suffered resistance is bigger；
The coefficient of viscosity μ of the cement grout is measured using Rotary Viscosimeter, unit Pas.
Preferably, in the 3rd step, the formation capacity β is according to strata condition value, specifically：
When stratum is cohesive soil, β values 1.6~1.8；
When stratum is country rock, and country rock grade m is less than or equal to III level, β values 1.2~1.4；
When country rock grade m is more than III level, β values 1~1.2.
Preferably, in the 3rd step, the slip casting loss coefficient α is determined according to slip casting position surrounding formation coefficient of permeability K, tool
Body：
When K ＜ 3.42m/d, α value 1.2；
When 3.42m/d ＜ K ＜ 17.28m/d, α value 1.4；
When K ＞ 17.28m/d, α value 1.8~2.4.
Preferably, in (2) of the 4th step：
The air drill machine is breast drill machine；The air drill driver drilling rod is carbide drill；
Angle is 120 ° between the main interface of the Y-type three way type pipe fitting and two stub interfaces.
Preferably, in (3) of the 4th step, angle is between the main interface of the Y-type three way type pipe fitting and two stub interfaces
120°。
Preferably, in (4) of the 4th step, the semi-automatic slip casting table system is unilateral table system in shield tunnel,
For completing the semi-automatic charging and automatic stirring work of secondary grouting material；
Include slip casting machine, two automatic stirring buckets, slurries delivery pipeline system in the semi-automatic slip casting table system
And control system, wherein：It is former that slurries delivery pipeline system includes cement injection pipe, waterglass Grouting Pipe, running water pipe, waterglass
Slurry pipe, waterglass magma pump, waterglass delivery pipe and cement pipe；Control system includes control circuit panel and running water pipe
Valve.
Preferably, in the 5th step：
(1) electro-motor of two automatic stirring buckets is opened, and keeps the stirring rod in automatic stirring bucket to dally at least
2min；
(2) two running water pipe valves and waterglass magma pump are opened, are noted into the automatic stirring bucket of stirring waterglass
Enter waterglass magma and tap water, tap water is injected into the automatic stirring bucket for the slurry that mixes cement and uniformly pours into cement, is fallen
Cement consumption, water consumption and the waterglass dosage entered is matched according to the grouting serous fluid in (1) of second step and determined；
(3) after slurries stir evenly, the ball valve being connected with injected hole is opened completely, the controlling switch of slip casting machine is opened, opens
Beginning slip casting；
(4) after the sum of cement grout grouting amount and waterglass slurries grouting amount reach grouting amount Q values, closing slip casting machine,
Waterglass magma pumps, and stops pouring into cement into the automatic stirring bucket for the slurry that mixes cement, completely closes what is be connected with injected hole
Ball valve, closes running water pipe valve, Y-type three way type pipe fitting is pulled down from ball valve interface；
(5) ball valve is closed after at least ten minutes, reopens ball valve, if without infiltration phenomenon, is dismantled lower ball valve, is used slip casting
Stopple seals injected hole, completes this secondary grouting process；
If there is infiltration phenomenon, (1)~(5) of above-mentioned 5th step are repeated, re-start secondary grouting, until completing this
Secondary grouting process.
Further, after above-mentioned 5th step, the 6th step is further performed：Rinse Grouting Pipe and Y-type three way type pipe fitting.
Preferably, in the 6th step：After secondary grouting process is completed, running water pipe valve and two automatic stirring buckets are opened
Electro-motor, inject tap water into two automatic stirring buckets, open slip casting machine, noted with 1.5 times of grouting pressure to cement
Slurry pipe, injected clear water in waterglass Grouting Pipe, rinse cement Grouting Pipe, residual cement slurries and water in waterglass Grouting Pipe respectively
Glass pulp, closes slip casting machine after outflow clear water in Y-type three way type pipe fitting, closes running water pipe valve, clean two automatic stirrings
Mix bucket.
According to another aspect of the present invention, there is provided a kind of construction system that secondary grouting quality is improved for shield-tunneling construction,
The system is semi-automatic slip casting table system, including：Trolley traction frame, slip casting trolley frame, slip casting machine, two it is automatic
Agitator, waterglass magma tank, slurries delivery pipeline system and control system；
The slip casting trolley frame is rectangular frame structure, and slip casting trolley frame direction along ng a path is arranged at intervals a circle I-shaped
Steel, one of I-steel is welded with the bottom direction along ng a path central axis of slip casting trolley frame, and at the both ends of I-steel
And three wheels are welded at center, wheel and track occlusal contact condition；In the bottom welding wire rack traveling of slip casting trolley frame
Plate；
The front end of the trolley traction frame welding slip casting trolley frame, and between the frame structure of original shield trolley
It is bolted；The trolley traction frame is rectangular frame structure, in pair of four rectangular surfaces parallel to length direction
Anti- torsion I-steel is welded on diagonal position；
The slip casting machine is parked in slip casting trolley frame front, for grouting serous fluid to be pumped to injected hole；Slip casting machine
Bottom is respectively arranged with cement grout pumping outlet, cement grout pumps outlet and waterglass slurries into pumping hole, waterglass slurries
Into pumping hole；
Two automatic stirring buckets are fixed on slip casting trolley frame mid portion, one of them is used for mix cement slurries, a use
In stirring waterglass slurries；
The waterglass magma tank is positioned over the slip casting trolley frame afterbody；
The slurries delivery pipeline system includes running water pipe, waterglass magma pipe, cement injection pipe, waterglass slip casting
Pipe, waterglass magma pump, waterglass delivery pipe and cement pipe, wherein：Running water pipe connects two automatic stirring buckets respectively,
It is responsible for the water filling into two automatic stirring buckets；Waterglass magma pipe connection waterglass magma tank, waterglass magma pump and for stirring
Mix the automatic stirring bucket of waterglass slurries；Cement mortar Grouting Pipe connects Grouting Pipe and the cement grout pumping of slip casting machine exports；Water
Glass Grouting Pipe connects injected hole and the waterglass slurries pumping of slip casting machine exports；Waterglass delivery pipe is connected to stirring water glass
The automatic stirring bucket of glass slurries and the waterglass slurries of slip casting machine are into pumping hole；Cement pipe is connected to the slurries that mix cement
The cement grout of automatic stirring bucket and slip casting machine is into pumping hole；
Control system includes control circuit panel and running water pipe valve, wherein：Control circuit panel controls two automatically
The switch of the rotating speed of electro-motor, the flow of waterglass pump and slip casting machine on agitator；Running water pipe Valve controlling tap water
Break-make.
Preferably, two automatic stirring buckets are uncovered steel cylinder, wherein：
Stirring rod is installed, the lower end of stirring rod is contacted with bottom of cylinder circle centre position, circle is exposed in upper end at the axle center of cylinder
Cylinder is simultaneously fixed with gear；Stirring rod is made of axle center barred body with flabellum, and flabellum is six vertical triangle steel discs；
Electro-motor is fixed with the top edge of cylinder, the barrel top circular section center of circle is directed toward in electro-motor axle center,
Electro-motor axle center end is provided with the upper end engaged gears of fixed gear, fixed gear and stirring rod；
Two rod-shaped fixing axles of steel up and down are welded with the inner wall of cylinder, and two fixing axles be located at same perpendicular and equal
It is directed toward cylinder center's axis；Fixed the tip of the axis is detachable steel rounding ring, and annulus is around stirring rod；Set in the bottom of cylinder
There are grout outlet, top to be provided with stock inlet.
Semi-automatic slip casting table system operation principle of the present invention is：
During secondary grouting, by the electro-motor on control circuit panel opening automatic stirring bucket, through fixed tooth
Wheel, gear pass to stirring rod, so that stirring rod dallies；Running water pipe valve and waterglass magma pump are opened, realizes water glass
The automatic stirring mixing of glass, to the automatic stirring bucket introversion pouring mud for the slurries that mix cement, realizes the automatic of cement grout
Whipping process；Control cement grout and water glass are realized by running water pipe valve, waterglass magma pump discharge and dump cement amount
The proportioning of glass slurries；Complete cement grout and matching somebody with somebody for waterglass slurries postpones, control circuit panel opening slip casting machine, passes through respectively
Cement grout and waterglass slurries are pumped to injected hole by cement injection pipe, waterglass Grouting Pipe, until completing secondary grouting.
Compared with prior art, the present invention has following beneficial effect：
The present invention specify that secondary grouting pressure and slip casting method for determination of amount, it is proposed that prevent Grouting Pipe and tee pipe fitting
The cleaning method of blocking, by a set of semi-automatic slip casting table system, realizes the automatic stirring of cement grout and waterglass slurries
The semi-automatic addition function of function and injecting paste material, effectively saves manpower and the time of secondary grouting, improves grouting serous fluid
The accuracy of allotment, the uniformity coefficient of grouting serous fluid and slip casting efficiency.
Brief description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is injected hole perforate schematic diagram in one embodiment of the invention, wherein：(a) it is ball valve installation process, (b) is note
Hole Tapping procedures are starched, (c) is Y-type three way type pipe fitting connection procedure；
Fig. 2 is semi-automatic slip casting table system top view in one embodiment of the invention；
Fig. 3 is semi-automatic slip casting table system side view in one embodiment of invention；
In figure：1 is original table system, 2 be trolley draw frame, 3 be connection bolt, 4 be slip casting trolley frame, 5 be
Slip casting machine, 6 be automatic stirring bucket, 7 be waterglass magma tank, 8 be cement, 9 be electro-motor, 10 be running water pipe, 11 be from
Come conduit control valve, 12 be waterglass magma pump, 13 be waterglass magma pipe, 14 be cement injection pipe, 15 be waterglass slip casting
Pipe, 16 be waterglass delivery pipe, 17 be cement pipe, 18 in order to control system panel, 19 be lining segment, 20 be walk andante,
21 it is wheel, 22 be track, 23 be crossties of the track, 24 be injected hole, 25 be ball valve, 26 be air drill machine, 27 is Y-shaped three-way pipe
Part.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiments will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment
In the shield construction Metro Tunnel of Guangzhou, Guangdong Fanyu District, tunnel diameter 6m need to be to tunnel somewhere
Carry out secondary grouting.The present embodiment provides a kind of construction method that secondary grouting quality is improved for shield-tunneling construction, the construction
The Specific construction step of method is as follows：
Step 1: determine construction field geology situation：
Geologic prospect report is consulted, determines that slip casting position surrounding formation is divided into 2 layers altogether, first layer is argillic horizon, effectively
Severe γ1For 20kN/m3, thickness h1For 8m, the second layer is middle weathered granite, and country rock grade is IV grades, is enclosed above slip casting position
Rock thickness h2For 5m, country rock severe γ2For 25kN/m3, underground water initial water level depth HwFor 1m, underground water severe γwFor 10kN/
m3, slip casting position surrounding formation coefficient of permeability K is 8.2m/d, and tunnel bottom buried depth H is 17m, and slip casting position buried depth h is 13m.
Step 2: determine grouting serous fluid proportioning；Specifically include：
(1) secondary grouting proportioning is water and cement quality ratio is 1：1, water and waterglass magma volume ratio in waterglass slurries
For 4：1, the volume ratio of cement grout and waterglass slurries is 1：1；
(2) matched according to grouting serous fluid and prepare 100ml cement grouts and 100ml grouting serous fluids, measure the weight of cement grout
Spend γsFor 15.2kN/m3, the coefficient of viscosity μ using Rotary Viscosimeter measure cement grout is 0.4Pas.
In the present embodiment, the cement is 32.5 grades of Portland cements.
Step 3: determine grouting pressure P and grouting amount Q：
Grouting pressure P meets following formula：
Wherein：β is formation capacity, underground water severe γwFor 10kN/m3, slip casting position buried depth h is 13m, and underground water is initial
Water level depth HwFor 1m, country rock grade m is IV grades, cement grout severe γsFor 15.2kN/m3, tunnel bottom buried depth H is 17m,
Grouting serous fluid coefficient of viscosity μ is 0.4Pas.
Grouting amount Q meets the following formula：
Wherein：α is slip casting loss coefficient, and slip casting position surrounding formation coefficient of permeability K is 8.2m/d, and P is grouting pressure
(MPa), grouting serous fluid coefficient of viscosity μ is 0.4Pas.
In the present embodiment, the formation capacity β values are 1.2；
In the present embodiment, the slip casting loss coefficient α values are 1.4.
In the present embodiment, the grouting pressure P is：
P=1.2 × [20 × 8+25 × 5+10 × (13-1)+5 × 0.4 × 15.2 × (17-1)]=1069kPa=
1.1MPa。
In the present embodiment, the grouting amount Q is：
100 ÷ 0.4=3.97m of Q=1.4 × 4 × 3.14 × 8.2 × 1.1 ÷3。
Step 4: injected hole perforate and connecting the slurries delivery pipeline system of semi-automatic slip casting trolley, specifically include：
(1) mounting ball valve 25 switchs at injected hole 24, keeps ball valve 25 to open completely (in such as Fig. 1 shown in (a))；
(2) 26 drilling rod of air drill machine is stretched into injected hole 24, opens air drill machine 26, drill through residual thickness pipe after injected hole 24
Piece, closes air drill machine 26, when having mud outflow in injected hole 24, withdraws from air drill machine 26, completely close ball valve 25 (in such as Fig. 1
(b) shown in)；
(3) 25 interface mud of ball valve, 27 main interface of connection Y-type three way type pipe fitting and 25 interface of ball valve are rinsed with clear water, even
Connect 27 two stub interfaces of Y-type three way type pipe fitting and two slip casting interface tubes (in such as Fig. 1 shown in (c))；
(4) the slurries delivery pipeline system (as shown in Figure 2 and Figure 3) of semi-automatic slip casting trolley is connected.
In the present embodiment, the interface outside diameter of the ball valve 25 is 40mm, internal diameter 32mm.
In the present embodiment, the air drill machine 26 is breast drill machine, its air consumption 2.9m3/ min, drilling depth are maximum
4m。
In the present embodiment, the drilling rod of the air drill machine 26 is carbide drill, its diameter 15mm, length 420mm.
In the present embodiment, angle is 120 ° between the main interface of the Y-type three way type pipe fitting 27 and two stub interfaces, its
In：Main interface spout diameter 40mm, two stub interface spout diameter 32mm.
As shown in Figure 2 and Figure 3, in a preferred embodiment, the semi-automatic slip casting table system used is single in shield tunnel
Side table system, the semi-automatic charging and automatic stirring that can complete secondary grouting material work, including trolley traction frame 2,
Slip casting trolley frame 4,5, two automatic stirring buckets 6 of slip casting machine, waterglass magma tank 7, slurries delivery pipeline system, running water pipe
Control valve 11 and control system panel 18；
In the present embodiment, trolley traction frame 2 is a set of rectangular frame structure being welded by I-steel, width
It is highly 2m for 80cm, direction along ng a path length is 40cm, parallel in the diagonal positions of four rectangular surfaces of length direction
Weld anti-torsion I-steel；Trolley traction frame 2 is welded with slip casting table frame 4, and is passed through between original table system 1 and be connected
Bolt 3 connects；The trolley traction frame 2 uses No. 14 common I-steel of hot rolling Q235, its height 140mm, the wide 80mm of leg, waist
Thick 5.5mm；
In the present embodiment, the slip casting trolley frame 4 is a set of rectangular frame structure being welded by I-steel, width
It is highly 2m for 80cm, direction along ng a path length is 6m, and direction along ng a path sets a circle I-shaped in cross section periphery every 2m
Steel, one of I-steel is welded with the direction along ng a path central axis of bottom, 3 wheels are welded at the both ends and center of I-steel
21, wheel 21 and 22 occlusal contact condition of track, bottom welding wire rack traveling plate 20；The slip casting trolley frame 4 uses No. 14
The common I-steel of hot rolling Q235, its height 140mm, the wide 80mm of leg, waist thickness 5.5mm；
In the present embodiment, the slip casting machine 5 is double-fluid grouting machine, maximum delivery 8m3/ h, grouting pressure 4MPa, motor
Power 3kw, midge bore 64mm, inner diameter of delivery tube 38mm, vertical transport distance 50m；
In the present embodiment, two automatic stirring buckets 6 are the uncovered steel circle of diameter 50cm, thickness 3mm, height 1m
Cylinder：Stirring rod is installed, the lower end of stirring rod is contacted with bottom of cylinder circle centre position, cylinder 10cm is exposed simultaneously in upper end at cylinder axle center
It is fixed with gear；Cylinder uncovered top edge is fixed with electro-motor 9, and barrel top circular section circle is directed toward in 9 axle center of electro-motor
The heart, 9 axle center end of electro-motor are provided with fixed gear, and with stirring rod upper end engaged gears；Cylinder inner wall welds two bar steels
Rod-shaped fixing axle, lower section inflexible wheel base cylinder bottom 0.2m are made, two fixing axles are located at same perpendicular, and vertical interval 0.6m, is directed toward
Cylinder center's axis, long 24cm, body of rod internal diameter 3cm, fixed shaft end are detachable steel rounding ring, and annulus is around stirring rod axle center
Barred body, annulus interior diameter 3cm, stirring bottom of the barrel are provided with the grout outlet of diameter 3cm, and top is provided with the stock inlet of diameter 3cm,
The bolted splice that bottom is distributed with plate out of shape by 3 product words；Specifically：
Electro-motor 9 voltage 220V, power 10kW；
Stirring rod is made of axle center barred body with flabellum：Axle center barred body diameter 2.8cm；Flabellum is vertical triangle steel disc, long
18cm, the long 6cm of triangle base；Flabellum totally 6, vertical interval 20cm, bottom flabellum is between stirring bottom of the barrel 10cm, blade
Level angle is 120 °；
The waterglass magma tank 7 is positioned over the walking on andante 20 of 4 afterbody of slip casting trolley frame；Cement 8 is also positioned over note
4 afterbody of slurry trolley frame is walked on andante 20；
The slurry delivery system includes running water pipe 10, waterglass magma pump 12, waterglass magma pipe 13, cement injection
Pipe 14, waterglass Grouting Pipe 15, waterglass delivery pipe 16 and cement pipe 17：
Running water pipe 10 connects two automatic stirring buckets 6, is responsible for the water filling into two automatic stirring buckets 6；
Waterglass magma pipe 13 connects waterglass magma tank 7, waterglass magma pump 12 and for stirring waterglass slurries
Automatic stirring bucket 6；
The cement grout pumping of Y-type three way type pipe fitting 27 and slip casting machine 5 that cement mortar Grouting Pipe 14 connects injected hole 24 exports；
Waterglass Grouting Pipe 15 connects the Y-type three way type pipe fitting 27 of injected hole 24 and the waterglass slurries of slip casting machine 5 pump out
Mouthful；
Waterglass delivery pipe 16 is connected to the automatic stirring bucket 6 of stirring waterglass slurries and the waterglass slurry of slip casting machine 5
Liquid is into pumping hole；
Cement pipe 17 is connected to mix cement the automatic stirring bucket 6 of slurries and the cement grout of slip casting machine 5 into pump
Mouthful；
The running water pipe control valve 11 is installed on running water pipe 10, for controlling the break-make of tap water；
The control system panel 18 is installed on slip casting trolley frame 4, for controlling electro-motor on automatic stirring bucket 6
9 rotating speed, the flow of waterglass magma pump 12 and the switch of slip casting machine 5.
In the present embodiment, the 7 long 1.5m of waterglass magma tank, width 1m, high 1m.
In the present embodiment, the running water pipe 10 and waterglass magma pipe 13 are outside diameter 30mm, the PVC plastic of internal diameter 26mm
Expect hose.
In the present embodiment, the running water pipe control valve 11 is butt joint type ball valve, its pipe interface diameter 30mm.
In the present embodiment, waterglass magma pump 12 is centrifugal single suction pump, its output power 300W, H-Max
15m, maximum stream flow 3m3/ h, caliber 30mm.
In the present embodiment, the cement injection pipe 14 and waterglass Grouting Pipe 15 are outside diameter 38mm, the PVC of internal diameter 30mm
Plastic flexible pipe.
In the present embodiment, the waterglass delivery pipe 16 and cement pipe 17 are outside diameter 64mm, the PVC of internal diameter 56mm
Plastic flexible pipe.
Above-mentioned specific size is to be chosen in the present embodiment, in other embodiments or other sizes, this
No substantial effect is realized for the present invention.
Step 5: preparing grouting serous fluid, secondary grouting is carried out；Specifically include：
(1) two 6 electro-motors 9 of automatic stirring bucket are opened, are kept stirring rod idle running 2min；
(2) two running water pipe control valves 11 and waterglass magma pump 12 are opened, to the automatic stirring bucket 6 of stirring waterglass
Middle injection waterglass magma and tap water, tap water is injected into the automatic stirring bucket 6 for the slurry that mixes cement and uniformly pours into cement,
Water consumption in waterglass slurries is 1.2L, and waterglass magma volume is 0.3L, is 15.2kN/ according to the severe of cement grout
m3, convert the density of cement grout is 1.52t/m3, the volume of cement grout is 2m3, be grouting amount Q half, therefore this
Grouting cement dosage is 1.5t, and the dosage of water is 1.5t.；
(3) after slurries stir evenly, the ball valve 25 being connected with injected hole 24 is opened completely, opens 5 controlling switch of slip casting machine,
Start slip casting；
(4) when the sum of cement grout grouting amount and waterglass slurries grouting amount reach grouting amount 3.97m3Afterwards, slip casting is closed
Machine 5, waterglass magma pump 12, stop pouring into cement into cement grout agitator, completely close the ball being connected with injected hole 24
Valve 25, closes running water pipe control valve 11, Y-type three way type pipe fitting 27 is pulled down from 25 interface of ball valve；
(5) ball valve is closed after 250 minutes, reopens ball valve 25, no infiltration phenomenon, dismantles lower ball valve 25, use injected hole
Plug sealing injected hole 24, completes this secondary grouting process.
Step 6: rinse Grouting Pipe and Y-type three way type pipe fitting：
After completing secondary grouting process, the electro-motor on running water pipe control valve 11 and two automatic stirring buckets 6 is opened
9, inject tap water into two automatic stirring buckets 6, open slip casting machine 5, with 1.65MPa into two Grouting Pipes injected clear water,
Residual cement slurries and waterglass slurries in two Grouting Pipes are rinsed respectively, are closed after outflow clear water in Y-type three way type pipe fitting 27
Slip casting machine 5, closes running water pipe control valve 11, cleaning automatic stirring bucket 6.
The present invention specify that secondary grouting pressure and slip casting method for determination of amount, it is proposed that prevent Grouting Pipe and tee pipe fitting
The cleaning method of blocking, by a set of semi-automatic slip casting table system, realizes the automatic stirring of cement grout and waterglass slurries
The semi-automatic addition function of function and injecting paste material, effectively saves manpower and the time of secondary grouting, improves grouting serous fluid
The accuracy of allotment, the uniformity coefficient of grouting serous fluid and slip casting efficiency.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (9)
1. a kind of construction method that secondary grouting quality is improved for shield-tunneling construction, it is characterised in that the construction method includes
Following steps：
The first step, determine construction field geology situation：
Geologic prospect report is consulted, determines soil layer division information, the underground water severe γ of slip casting position surrounding formationw, at the beginning of underground water
Beginning water level depth Hw, country rock grade m, slip casting position surrounding formation coefficient of permeability K, tunnel bottom buried depth H and slip casting position buried depth
h；
The soil layer division information, including soil body number of plies n, i-th layer of native effective unit weight γiIt is thick with more than slip casting position each layer soil
Spend hi；
Second step, determine that grouting serous fluid matches, and carries out size performance experiment：
(1) water and cement quality ratio are 1 in cement grout：A, water and waterglass magma volume ratio are B in waterglass slurries：1, institute
State A and B to be determined according to the value range of slip casting position surrounding formation coefficient of permeability K, cement grout and waterglass in grouting serous fluid
The volume ratio of slurries is 1：1；
(2) matched according to grouting serous fluid and prepare cement grout and grouting serous fluid, measure the severe γ of cement groutsAnd the coefficient of viscosity
μ；
3rd step, determine grouting pressure P and grouting amount Q：
Grouting pressure P meets following formula：
<mrow>
<mi>P</mi>
<mo>=</mo>
<mi>&beta;</mi>
<mo>&lsqb;</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>n</mi>
</munderover>
<msub>
<mi>&gamma;</mi>
<mi>i</mi>
</msub>
<msub>
<mi>h</mi>
<mi>i</mi>
</msub>
<mo>+</mo>
<msub>
<mi>&gamma;</mi>
<mi>w</mi>
</msub>
<mrow>
<mo>(</mo>
<mi>h</mi>
<mo>-</mo>
<msub>
<mi>H</mi>
<mi>w</mi>
</msub>
<mo>)</mo>
</mrow>
<mo>+</mo>
<mn>5</mn>
<msub>
<mi>&mu;&gamma;</mi>
<mi>s</mi>
</msub>
<mrow>
<mo>(</mo>
<mi>H</mi>
<mo>-</mo>
<msub>
<mi>H</mi>
<mi>w</mi>
</msub>
<mo>)</mo>
</mrow>
<mo>&rsqb;</mo>
</mrow>
Wherein：β is formation capacity, γwFor underground water severe, h is slip casting position buried depth, HwFor underground water initial water level depth, μ
For the coefficient of viscosity of cement grout, γsFor the severe of cement grout, H is tunnel bottom buried depth；
Grouting amount Q meets the following formula：
<mrow>
<mi>Q</mi>
<mo>=</mo>
<mi>&alpha;</mi>
<mfrac>
<mrow>
<mn>4</mn>
<mi>&pi;</mi>
<mi>K</mi>
<mi>P</mi>
</mrow>
<mrow>
<mn>100</mn>
<mi>&mu;</mi>
</mrow>
</mfrac>
</mrow>
Wherein：α is slip casting loss coefficient, and K is slip casting position surrounding formation infiltration coefficient, and P is grouting pressure, and μ is cement grout
The coefficient of viscosity；
4th step, injected hole perforate simultaneously connect semi-automatic slip casting table system：
(1) mounting ball valve switchs at injected hole, keeps ball valve to open completely；
(2) air drill driver drilling rod is stretched into injected hole, opens air drill machine, drill through residual thickness section of jurisdiction after injected hole, close air drill machine,
When having mud outflow in injected hole, air drill machine is withdrawn from, completely closes ball valve；
(3) ball valve interface mud is rinsed with clear water, connects the main interface and ball valve interface of Y-type three way type pipe fitting, connect Y-type three way type
Two stub interfaces and two slip casting interface tubes of pipe fitting；
(4) semi-automatic slip casting table system is connected；
5th step, prepare grouting serous fluid, progress secondary grouting by semi-automatic slip casting table system.
2. a kind of construction method that secondary grouting quality is improved for shield-tunneling construction according to claim 1, its feature exist
In in (1) of second step, the A and B are determined according to the value range of slip casting position surrounding formation coefficient of permeability K：When K ＜ 5 ×
10-5M/s, A value 0.8, B values 5；When 5 × 10-5M/s ＜ K ＜ 2 × 10-4M/s, A value 1, B values 4；As K ＞ 2 × 10-4m/
S, A value 1.2, B values 3；
In (2) of second step：The severe γ of the cement groutsFor cement grout density and the product of local gravitational acceleration；Institute
The coefficient of viscosity μ for stating cement grout reflects the size of viscosity resistance suffered when cement grout flows in Grouting Pipe, viscous system
Number is bigger, and suffered resistance is bigger；The μ is measured using Rotary Viscosimeter, unit Pas.
3. a kind of construction method that secondary grouting quality is improved for shield-tunneling construction according to claim 1, its feature exist
In in the 3rd step：
The formation capacity β is according to strata condition value：When stratum is cohesive soil, β values 1.6~1.8；When stratum is to enclose
Rock, when country rock grade m is less than or equal to III level, β values 1.2~1.4；When country rock grade m is more than III level, β values 1~1.2；
The slip casting loss coefficient α is determined according to slip casting position surrounding formation coefficient of permeability K：When K ＜ 3.42m/d, α value 1.2；
When 3.42m/d ＜ K ＜ 17.28m/d, α value 1.4；When K ＞ 17.28m/d, α value 1.8~2.4.
4. a kind of construction method that secondary grouting quality is improved for shield-tunneling construction according to claim 1, its feature exist
In in the 4th step：The air drill machine is breast drill machine；The air drill driver drilling rod is carbide drill；
Angle is 120 ° between the main interface of the Y-type three way type pipe fitting and two stub interfaces.
5. a kind of construction method that secondary grouting quality is improved for shield-tunneling construction according to claim 1, its feature exist
In in (4) of the 4th step, the semi-automatic slip casting table system is unilateral table system in shield tunnel, secondary for completing
The semi-automatic charging of injecting paste material and automatic stirring work；
Include slip casting machine, two automatic stirring buckets, slurries delivery pipeline system and control in the semi-automatic slip casting table system
System processed, wherein：Slurries delivery pipeline system includes cement injection pipe, waterglass Grouting Pipe, running water pipe, waterglass magma
Pipe, waterglass magma pump, waterglass delivery pipe and cement pipe；Control system includes control circuit panel and tap water pipe valve
Door.
6. a kind of construction method that secondary grouting quality is improved for shield-tunneling construction according to claim 5, its feature exist
In the 5th step, is specially：
(1) electro-motor on two automatic stirring buckets is opened, and keeps the stirring rod idle running at least 2min in automatic stirring bucket；
(2) two running water pipe valves and waterglass magma pump are opened, inject water into the automatic stirring bucket of stirring waterglass
Glass magma and tap water, tap water is injected into the automatic stirring bucket for the slurry that mixes cement and uniformly pours into cement, is poured into
Cement consumption, water consumption and waterglass dosage are matched according to the grouting serous fluid in (1) of second step and determined；
(3) after slurries stir evenly, the ball valve being connected with injected hole is opened completely, the controlling switch of slip casting machine is opened, starts to note
Slurry；
(4) after the sum of cement grout grouting amount and waterglass slurries grouting amount reach grouting amount Q values, slip casting machine, water glass are closed
Glass magma pumps, and stops pouring into cement into the automatic stirring bucket for the slurry that mixes cement, completely closes the ball valve being connected with injected hole,
Running water pipe valve is closed, Y-type three way type pipe fitting is pulled down from ball valve interface；
(5) ball valve is closed after at least ten minutes, reopens ball valve, if without infiltration phenomenon, lower ball valve is dismantled, with slip casting stopple
Injected hole is sealed, completes this secondary grouting process；
If there is infiltration phenomenon, (1)~(5) of above-mentioned 5th step are repeated, re-start secondary grouting, until it is secondary to complete this
Slip casting process.
7. according to claim 1-6 any one of them it is a kind of for shield-tunneling construction improve secondary grouting quality construction method,
It is characterized in that, after the 5th step, the 6th step is further performed：Grouting Pipe and Y-type three way type pipe fitting are rinsed, is specially：
After secondary grouting process is completed, the electro-motor of running water pipe valve and two automatic stirring buckets is opened, to two automatic stirrings
Mix and tap water is injected in bucket, open slip casting machine, injected with 1.5 times of grouting pressure into cement injection pipe, waterglass Grouting Pipe
Clear water, rinses cement Grouting Pipe, residual cement slurries and waterglass slurries in waterglass Grouting Pipe, treats Y-type three way type pipe fitting respectively
Slip casting machine is closed after interior outflow clear water, closes running water pipe valve, cleans two automatic stirring buckets.
8. the construction system for being used for shield-tunneling construction and improving secondary grouting quality that a kind of any one of claim 1-7 the method uses
System, it is characterised in that the system is semi-automatic slip casting table system, including：Trolley traction frame, slip casting trolley frame, note
Pulp grinder, two automatic stirring buckets, waterglass magma tank, slurries delivery pipeline system and control system；Wherein：The slip casting trolley
Frame is rectangular frame structure, and slip casting trolley frame direction along ng a path is arranged at intervals a circle I-steel, in slip casting trolley frame
One of I-steel is welded with the direction along ng a path central axis of bottom, and three cars are welded at the both ends of I-steel and center
Wheel, wheel and track occlusal contact condition；In the bottom welding wire rack traveling plate of slip casting trolley frame；
The front end of the trolley traction frame welding slip casting trolley frame, and pass through between the frame structure of original shield trolley
It is bolted；The trolley traction frame is rectangular frame structure, in the diagonal of four rectangular surfaces parallel to length direction
Anti- torsion I-steel is welded on position；
The slip casting machine is parked in slip casting trolley frame front, for grouting serous fluid to be pumped to injected hole；The bottom of slip casting machine
It is respectively arranged with cement grout pumping outlet, cement grout pumps outlet and waterglass slurries into pump into pumping hole, waterglass slurries
Mouthful；
Two automatic stirring buckets are fixed on slip casting trolley frame mid portion, one of them is used to stir for the slurries that mix cement, one
Mix waterglass slurries；
The waterglass magma tank is positioned over the slip casting trolley frame afterbody；
The slurries delivery pipeline system includes running water pipe, waterglass magma pipe, cement injection pipe, waterglass Grouting Pipe, water
Glass magma pump, waterglass delivery pipe and cement pipe, wherein：Running water pipe connects two automatic stirring buckets respectively, is responsible for
The water filling into two automatic stirring buckets；Waterglass magma pipe connection waterglass magma tank, waterglass magma pump and for stirring water
The automatic stirring bucket of glass pulp；Cement mortar Grouting Pipe connects Grouting Pipe and the cement grout pumping of slip casting machine exports；Waterglass
Grouting Pipe connects injected hole and the waterglass slurries pumping of slip casting machine exports；Waterglass delivery pipe is connected to stirring waterglass slurry
The automatic stirring bucket of liquid and the waterglass slurries of slip casting machine are into pumping hole；Cement pipe is connected to the automatic of slurries that mix cement
The cement grout of agitator and slip casting machine is into pumping hole；
Control system includes control circuit panel and running water pipe valve, wherein：Control circuit panel controls two automatic stirrings
The switch of the rotating speed of electro-motor, the flow of waterglass pump and slip casting machine on bucket；The break-make of running water pipe Valve controlling tap water.
9. a kind of construction system that secondary grouting quality is improved for shield-tunneling construction according to claim 8, its feature exist
In, two automatic stirring buckets are uncovered steel cylinder, wherein：
Stirring rod is installed, the lower end of stirring rod is contacted with bottom of cylinder circle centre position, cylinder is exposed simultaneously in upper end at the axle center of cylinder
It is fixed with gear；Stirring rod is made of axle center barred body with flabellum, and flabellum is six vertical triangle steel discs；
Electro-motor is fixed with the top edge of cylinder, the barrel top circular section center of circle is directed toward in electro-motor axle center, electronic
Axle center of motor end is provided with the upper end engaged gears of fixed gear, fixed gear and stirring rod；
Two rod-shaped fixing axles of steel, two fixing axles up and down are welded with the inner wall of cylinder to be located at same perpendicular and be directed to
Cylinder center's axis；Fixed the tip of the axis is detachable steel rounding ring, and annulus is around stirring rod；It is provided with out in the bottom of cylinder
Slurry mouth, top are provided with stock inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785110.8A CN105673044B (en) | 2015-11-16 | 2015-11-16 | A kind of construction method and system that secondary grouting quality is improved for shield-tunneling construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785110.8A CN105673044B (en) | 2015-11-16 | 2015-11-16 | A kind of construction method and system that secondary grouting quality is improved for shield-tunneling construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105673044A CN105673044A (en) | 2016-06-15 |
| CN105673044B true CN105673044B (en) | 2018-05-08 |
Family
ID=56946843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510785110.8A Active CN105673044B (en) | 2015-11-16 | 2015-11-16 | A kind of construction method and system that secondary grouting quality is improved for shield-tunneling construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105673044B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798709A (en) * | 2017-04-27 | 2018-11-13 | 湖南五新隧道智能装备股份有限公司 | Placement layer by layer material distributing machine and lining trolley comprising this material distributing machine |
| CN106948828A (en) * | 2017-05-07 | 2017-07-14 | 中铁十八局集团有限公司 | A kind of device that secondary grouting is carried out using shield synchronization slip casting equipment |
| CN109826652B (en) * | 2019-02-01 | 2023-10-13 | 上海工程技术大学 | Simulation test device and method for slurry loss in shield synchronous grouting |
| CN113431046B (en) * | 2021-07-06 | 2022-03-29 | 广东省水利水电第三工程局有限公司 | Post-grouting construction method for cast-in-place pile |
| CN114017046B (en) * | 2021-10-14 | 2023-12-01 | 上海申通地铁集团有限公司 | Synchronous grouting cleaning device for subway shield in muddy soft soil stratum |
| CN114060047B (en) * | 2021-11-30 | 2022-07-12 | 中交隧道工程局有限公司 | Slurry mixing method for synchronous double-liquid grouting of shield tunnel |
| CN114278317B (en) * | 2021-11-30 | 2022-12-13 | 中交隧道工程局有限公司 | Slurry preparation-injection integrated method for synchronous double-liquid grouting in shield tunnel |
| CN114165244B (en) * | 2021-11-30 | 2022-12-02 | 中交隧道工程局有限公司 | Shield synchronous double-liquid grouting process field verification test method |
| CN114352316B (en) * | 2021-11-30 | 2024-03-19 | 中交隧道工程局有限公司 | Slurry stirring system for synchronous double-liquid grouting of shield tunnel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1882812A1 (en) * | 2006-07-25 | 2008-01-30 | Porr Tunnelbau GmbH | Device and method for applying a settable layer to cladding of building elements |
| CN202001023U (en) * | 2011-04-07 | 2011-10-05 | 中铁十一局集团城市轨道工程有限公司 | Improved shield machine grouting pipeline system |
| CN102767377A (en) * | 2012-08-13 | 2012-11-07 | 中铁一局集团有限公司 | Loess strata subway tunnel earth pressure balance shield construction method |
| CN103306684A (en) * | 2012-03-08 | 2013-09-18 | 中铁隧道集团有限公司 | Process for grouting on back of shield segment |
| CN103510964A (en) * | 2013-07-31 | 2014-01-15 | 中铁隧道集团有限公司 | Method for performing backfill grouting on pea gravel by adoption of shield type TBM in construction process |
-
2015
- 2015-11-16 CN CN201510785110.8A patent/CN105673044B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1882812A1 (en) * | 2006-07-25 | 2008-01-30 | Porr Tunnelbau GmbH | Device and method for applying a settable layer to cladding of building elements |
| CN202001023U (en) * | 2011-04-07 | 2011-10-05 | 中铁十一局集团城市轨道工程有限公司 | Improved shield machine grouting pipeline system |
| CN103306684A (en) * | 2012-03-08 | 2013-09-18 | 中铁隧道集团有限公司 | Process for grouting on back of shield segment |
| CN102767377A (en) * | 2012-08-13 | 2012-11-07 | 中铁一局集团有限公司 | Loess strata subway tunnel earth pressure balance shield construction method |
| CN103510964A (en) * | 2013-07-31 | 2014-01-15 | 中铁隧道集团有限公司 | Method for performing backfill grouting on pea gravel by adoption of shield type TBM in construction process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105673044A (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105673044B (en) | A kind of construction method and system that secondary grouting quality is improved for shield-tunneling construction | |
| CN107762532B (en) | Tunnel vault band mould grouting construction method | |
| CN104405410B (en) | A kind of constructing structure and construction method on reinforcing shield tunnel end stratum | |
| CN102486247B (en) | Water supply and drainage pipeline repair technique adopting size film lining method | |
| CN103790592B (en) | A kind of end soil body hardened system and method | |
| CN109208637A (en) | Increase the construction method of open-cut station newly on the basis of existing tunnel | |
| CN108643948B (en) | Construction method for shield to penetrate anchor cable area | |
| CN107620312A (en) | High hydraulic pressure precipitation well construction and hydrostatic slip casting method for blocking in a kind of Metro station excavation | |
| CN108625866B (en) | Shield machine based on steel bushing device crosses ventilating shaft method | |
| CN110761797B (en) | Construction method for shield air-pushing through mine tunnel | |
| CN110864162B (en) | Construction process of argillaceous sandstone geological pipe jacking | |
| CN103410119A (en) | Method for water interception curtain grouting in leakage concrete | |
| CN205206839U (en) | A semi -automatic slip casting platform truck system that is used for shield to construct slip casting of construction secondary | |
| CN109798128A (en) | A kind of diversion tunnel pole weak surrounding rock section constructing method | |
| CN105257309B (en) | In a kind of layer of sand in balancing earth-pressure shielding machine storehouse slip casting tool changing construction method | |
| CN207983691U (en) | A kind of Rock And Soil slip casting flow-dividing control converting system | |
| CN104314106A (en) | Underground diaphragm wall with joint water stop and filling vacancy structure and construction method thereof | |
| CN114718071B (en) | Plugging method suitable for junction of occluding pile and continuous wall | |
| CN203669876U (en) | Non-end shield reinforcement arrival structure | |
| CN113027483A (en) | Shield tunnel broken zone stratum grouting reinforcement equipment and grouting reinforcement method thereof | |
| CN113756825A (en) | Mechanical method connecting channel construction method utilizing pipe jacking technology | |
| CN202991051U (en) | Reinforcing structure capable of realizing shield reception without using water-stopping cord fabric | |
| CN208918541U (en) | A kind of device for abolishing cutterhead mud cake | |
| CN207620794U (en) | The soil body composite reinforcing structure of the existing subway of weak soil shield crossing | |
| CN206722881U (en) | A kind of underground mine roadway grouting wall for grouting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |