CN104213562B - The blocking device in a kind of slip casting aperture and using method thereof - Google Patents
The blocking device in a kind of slip casting aperture and using method thereof Download PDFInfo
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- CN104213562B CN104213562B CN201410395178.0A CN201410395178A CN104213562B CN 104213562 B CN104213562 B CN 104213562B CN 201410395178 A CN201410395178 A CN 201410395178A CN 104213562 B CN104213562 B CN 104213562B
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- slip casting
- mould bag
- resistance device
- pressure
- grouting pipe
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Abstract
The invention discloses the blocking device in a kind of slip casting aperture, it can solve the problem that the problem that the gap seals between grouting pipe and slip casting hole wall is the tightest, the injecting paste material waste preventing injection slurry from leaking out to earth's surface from the space between grouting pipe and slip casting hole wall and to cause, avoid grouting pressure suddenly to drop, treat strengthening stratum lack of fill, it is ensured that construction quality and construction speed.The blocking device in this slip casting aperture, grouting pipe insertion slip casting hole wall is interior and has therebetween space, this device includes swollen resistance device mould bag, the first tightening member, the second tightening member, swollen resistance device mould bag is enclosed within grouting pipe, and the front and back ends of swollen resistance device mould bag is fixed on grouting pipe by first, second tightening member respectively, filler inject swollen resistance device mould bag, filler after being full of swollen resistance device mould bag cementing with slip casting hole wall and engage with rock mass formed Seed harvest.Additionally provide the using method of this device.
Description
Technical field
The invention belongs to field of engineering technology, more particularly to the blocking device in a kind of slip casting aperture, and this dress
The using method put, is mainly used in Hydraulic and Hydro-Power Engineering, basement process or the slip casting of tunnel impervious leakage-stopping
In technology.
Background technology
At present, during dykes and dams, underground grottoes seepage proof curtain slip casting, foundation stabilization, impervious leakage-stopping slip casting,
Method is closed in common rubber stopper, improvement type rubber ring aperture, is closing between grouting pipe and slip casting hole wall
Annular space time poorly sealed.The operation principle of these devices is dependent on elastomeric material and fills in slip casting aperture
In, elastomeric material produces elastic deformation, and then acts on the pressure on slip casting hole wall to produce frictional force,
Grouting pressure is resisted by this frictional force.By experimental studies have found that, when grouting pressure is the highest, rubber blocks
The frictional force of device cannot resist grouting pressure, thus causes rubber blocking device to lose efficacy, and in turn results in note
Slurries leak out to earth's surface from the space between grouting pipe and slip casting hole wall, and injecting paste material is wasted, and slip casting
Pressure suddenly drops, treats strengthening stratum lack of fill, affects construction quality and construction speed.
Summary of the invention
The technology of the present invention solves problem: overcome the deficiencies in the prior art, it is provided that a kind of slip casting aperture
Blocking device, it can solve the problem that the problem that the gap seals between grouting pipe and slip casting hole wall is the tightest, anti-
The injecting paste material wave stopping injection slurry to leak out to earth's surface from the space between grouting pipe and slip casting hole wall and to cause
Take, it is to avoid grouting pressure suddenly drops, treats strengthening stratum lack of fill, it is ensured that construction quality and construction speed.
The technical solution of the present invention is: the blocking device in this slip casting aperture, and grouting pipe inserts note
Slurry hole wall in and there is therebetween space, this device include swollen resistance device mould bag, the first tightening member,
Second tightening member, swollen resistance device mould bag is enclosed within grouting pipe, and the front and back ends of swollen resistance device mould bag divides
Not being fixed on grouting pipe by first, second tightening member, filler injects swollen resistance device mould bag, fills out
Fill cementing with slip casting hole wall after thing is full of swollen resistance device mould bag and engage formation Seed harvest with rock mass.
Owing to present invention employs the swollen resistance device mould bag being enclosed within grouting pipe, filler is full of swollen resistance device mould
After Dai cementing with slip casting hole wall and engage with rock mass formation Seed harvest, so the present invention is by this Seed harvest
The effect of shearing strength opposing grouting pressure, and in general the shearing strength of Seed harvest is higher, allows for
The blocking device in this slip casting aperture can resist the highest grouting pressure, and then can solve the problem that grouting pipe
And the problem that gap seals between slip casting hole wall is the tightest, prevent injection slurry from grouting pipe and slip casting hole wall
Between space leak out to earth's surface and cause injecting paste material waste, it is to avoid grouting pressure suddenly drops, waits to reinforce
Stratum lack of fill, it is ensured that construction quality and construction speed.
Additionally provide the using method of the blocking device in this slip casting aperture, comprise the following steps:
(1) measure external water pressure, it is thus achieved that expection grouting pressure, and determine the length of swollen resistance device mould bag；
(2) according to on-the-spot physical condition, the blocking device in the slip casting aperture of the present invention is selected, after assembling
Put in slip casting hole wall；
(3) open filler injection pump, obtain injection pressure curve by flow rate of grouting manograph
And flow；When injection pressure continues to increase, swollen resistance device mould bag starts drainage, need to control pressure and increase
Width is unsuitable excessive；When after injection pressure persistently increases, pressure curve is close to horizontal linear, swollen resistance device
Mould bag drainage is complete, starts to extrude hole wall, increases pressure after need to keeping injection pressure certain time again,
Until reaching expection grouting pressure；After injection pressure reaches expection grouting pressure, this pressure need to be maintained
Power 3-5 minute；Finally, close filler injection pump, complete the filling of swollen resistance device mould bag；
(4) slip casting is carried out by grouting pipe.
Accompanying drawing explanation
Fig. 1 shows the stress schematic diagram of the blocking device in the slip casting aperture according to the present invention；
Fig. 2 shows the structural representation of the first embodiment of the blocking device in the slip casting aperture according to the present invention
Figure；
Fig. 3 shows that filler injects the schematic diagram of the blocking device in the slip casting aperture of Fig. 2；
Fig. 4 shows that filler is full of the blocking device in slip casting aperture the showing of extrusion pour slurry hole wall of Fig. 2
It is intended to；
Fig. 5 shows that the blocking device in the slip casting aperture of Fig. 2 completes to block the schematic diagram of grouting behind shaft or drift lining；
Fig. 6 shows the structural representation of the second embodiment of the blocking device in the slip casting aperture according to the present invention
Figure；
Fig. 7 shows that filler injects the schematic diagram of the blocking device in the slip casting aperture of Fig. 6；
Fig. 8 shows that filler is full of the blocking device in slip casting aperture the showing of extrusion pour slurry hole wall of Fig. 6
It is intended to；
Fig. 9 shows that the blocking device in the slip casting aperture of Fig. 6 completes to block the schematic diagram of grouting behind shaft or drift lining.
Detailed description of the invention
As shown in figs. 2-9, the blocking device in this slip casting aperture, grouting pipe 2 inserts slip casting hole wall 1
In and there is therebetween space, this device include swollen resistance device mould bag the 3, first tightening member, second
Tightening member, swollen resistance device mould bag 3 is enclosed within grouting pipe 2, and the front and back ends of swollen resistance device mould bag 3
Being fixed on grouting pipe 2 by first, second tightening member respectively, filler injects swollen resistance device mould bag,
Filler after being full of swollen resistance device mould bag cementing with slip casting hole wall and engage with rock mass formation Seed harvest.
Owing to present invention employs the swollen resistance device mould bag being enclosed within grouting pipe, filler is full of swollen resistance device mould
After Dai cementing with slip casting hole wall and engage with rock mass formation Seed harvest, so the present invention is by this Seed harvest
The effect of shearing strength opposing grouting pressure, and in general the shearing strength of Seed harvest is higher, allows for
The blocking device in this slip casting aperture can resist the highest grouting pressure, and then can solve the problem that grouting pipe
And the problem that gap seals between slip casting hole wall is the tightest, prevent injection slurry from grouting pipe and slip casting hole wall
Between space leak out to earth's surface and cause injecting paste material waste, it is to avoid grouting pressure suddenly drops, waits to reinforce
Stratum lack of fill, it is ensured that construction quality and construction speed.
It addition, as shown in Figure 2-5, on the tube wall of the grouting pipe between first, second tightening member
Having some grouting pipe surfaces slurry outlet 4, the first tightening member is conventional fasteners 5, the second fastening unit
Part is hole pressure decided at the higher level but not officially announced pipe sealing device 6, and filler passes through grouting pipe surface slurry outlet after grouting pipe
Inject swollen resistance device mould bag 3.
Fig. 3 shows that filler injects the schematic diagram of the blocking device in the slip casting aperture of Fig. 2；Fig. 4 illustrates
Filler is full of blocking device the schematic diagram of extrusion pour slurry hole wall in the slip casting aperture of Fig. 2；Fig. 5 shows
The blocking device in the slip casting aperture having gone out Fig. 2 completes to block the schematic diagram of grouting behind shaft or drift lining.Arrow in figure represents
The flow direction of filler.After filler enters grouting pipe, by the obstruct of hole pressure decided at the higher level but not officially announced pipe sealing device 6,
Swollen resistance device mould bag 3 will be exited into from grouting pipe surface slurry outlet 4, along with injection rate increases, swollen resistance
Device mould bag 3 is persistently filled, as shown in Figure 3.Along with swollen resistance device mould bag 3 is persistently filled, swollen resistance device mould
Bag filtration also retains the cement granules (when the slurries that filler is cement slurries) in cement grout.
When being filled complete by cement granules in swollen resistance device mould bag, swollen resistance device mould bag extrusion pour slurry hole wall, injected hole
Wall pressurized is deformed, and the most swollen resistance device mould bag becomes high intensity calculus with the slip casting hole wall engaging after deformation
Body, as shown in Figure 4.When injection pressure persistently increases, the pressure-bearing exceeding hole pressure decided at the higher level but not officially announced pipe sealing device 6 is faced
After dividing value, hole pressure decided at the higher level but not officially announced pipe sealing device 6 lost efficacy, and injection slurry enters deeper formation by grouting pipe, as
Shown in Fig. 5.
It addition, as Figure 6-9, this device also includes filling pipe 7, fills pipe 7 through the first fastening
Element and insert swollen resistance device mould bag, first, second tightening member is all conventional fasteners 5, filler warp
Cross filling pipe and inject swollen resistance device mould bag 3.
Fig. 7 shows that filler injects the schematic diagram of the blocking device in the slip casting aperture of Fig. 6；Fig. 8 illustrates
Filler is full of blocking device the schematic diagram of extrusion pour slurry hole wall in the slip casting aperture of Fig. 6；Fig. 9 shows
The blocking device in the slip casting aperture having gone out Fig. 6 completes to block the schematic diagram of grouting behind shaft or drift lining.Arrow in figure represents
The flow direction of filler.Filler enters after filling pipe 7, is directly entered swollen resistance device mould bag 3, along with injection
Amount increases, and swollen resistance device mould bag 3 is persistently filled, as shown in Figure 7.Along with swollen resistance device mould bag 3 is persistently filled out
Filling, swollen resistance device mould bag filtration also retains the cement granules in cement grout (when filler is cement slurries
Slurries time).When being filled complete by cement granules in swollen resistance device mould bag, swollen resistance device mould bag 3 extruded hole
Wall, hole wall pressurized is deformed, and the most swollen resistance device mould bag 3 becomes high with the slip casting hole wall engaging after deformation
Intensity Seed harvest, as shown in Figure 8.After swollen resistance device mould bag 3 injection pressure reaches expection grouting pressure,
By grouting pipe, deeper formation can be carried out slip casting, as shown in Figure 9.
It addition, the first tightening member distance slip casting aperture 30-50cm backward.Such distance is for blocking
Effectiveness comparison is good, and it is more convenient to construct.
It addition, swollen resistance device mould bag 3 is geotextiles.The transmitance of this material filler is higher, and
With low cost.
It addition, described filler is the slurries containing 90%-100% cement grout.Experiment proves to use this water
The filler blockage effect of slurry liquid ratio and construction cost are relatively good.
Additionally provide the using method of the blocking device in this slip casting aperture, comprise the following steps:
(1) measure external water pressure, it is thus achieved that expection grouting pressure, and determine the length of swollen resistance device mould bag；
(2) according to on-the-spot physical condition, one preferred embodiment of the present invention is selected (directly to pass through Grouting Pipe
Road injects filler) or the injected hole of another kind of preferred embodiment (injecting filler by filling pipe)
The blocking device of mouth, puts into after assembling in slip casting hole wall；
(3) open filler injection pump, obtain injection pressure curve by flow rate of grouting manograph
And flow；When injection pressure continues to increase, swollen resistance device mould bag starts drainage, need to control pressure and increase
Width is unsuitable excessive；When after injection pressure persistently increases, pressure curve is close to horizontal linear, swollen resistance device
Mould bag drainage is complete, starts to extrude hole wall, increases pressure after need to keeping injection pressure certain time again,
Until reaching expection grouting pressure；After injection pressure reaches expection grouting pressure, this pressure need to be maintained
Power 3-5 minute；Finally, close filler injection pump, complete the filling of swollen resistance device mould bag；
(4) slip casting (can carry out stratum slip casting without waiting to coagulate) is carried out by grouting pipe.
Wherein step (1) obtains the length of action of swollen resistance device mould bag and slip casting hole wall by formula (1):
As it is shown in figure 1, Seed harvest shearing strength is στ, P1 is grouting pressure, and D is that slip casting hole wall is straight
Footpath, d is grouting pipe diameter, and L is the length of action of swollen resistance device mould bag and slip casting hole wall.
After obtaining the length of action of swollen resistance device mould bag and slip casting hole wall, add an appropriate value (such as L)
Just obtain the length of swollen resistance device mould bag.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma limit
System, any simple modification, equivalent that above example is made by the technical spirit of every foundation present invention become
Change and modify, the most still belonging to the protection domain of technical solution of the present invention.
Claims (5)
1. the blocking device in slip casting aperture, in grouting pipe (2) inserts slip casting hole wall (1) and
Therebetween there is space, it is characterised in that: this device include swollen resistance device mould bag (3), first
Tightening member, the second tightening member, swollen resistance device mould bag (3) is enclosed within grouting pipe (2),
And the front and back ends of swollen resistance device mould bag (3) is fixed to by first, second tightening member respectively
On grouting pipe (2), filler injects swollen resistance device mould bag, after filler is full of swollen resistance device mould bag
Cementing with slip casting hole wall and engage with rock mass formation Seed harvest；
Some grouting pipe tables are had on the tube wall of the grouting pipe between first, second tightening member
Face slurry outlet (4), the first tightening member is conventional fasteners (5), and the second tightening member is
Hole pressure decided at the higher level but not officially announced pipe sealing device (6), filler is gone out by grouting pipe surface after grouting pipe
Swollen resistance device mould bag (3) is injected in slurry hole.
The blocking device in slip casting aperture the most according to claim 1, it is characterised in that:
First tightening member distance slip casting aperture 30-50cm backward.
The blocking device in slip casting aperture the most according to claim 1, it is characterised in that:
Swollen resistance device mould bag (3) is geotextiles.
The blocking device in slip casting aperture the most according to claim 1, it is characterised in that:
Described filler is the slurries containing 90%-100% cement grout.
5. a using method for the blocking device in slip casting aperture according to claim 1, its feature
It is: comprise the following steps:
(1) measure external water pressure, it is thus achieved that expection grouting pressure, and determine the length of swollen resistance device mould bag；
(2) according to on-the-spot physical condition, the blocking device in the slip casting aperture of claim 2 or 3 is selected,
Put into after assembling in slip casting hole wall；
(3) open filler injection pump, obtain injection pressure curve by flow rate of grouting manograph
And flow；When injection pressure continues to increase, swollen resistance device mould bag starts drainage, need to control pressure and increase
Width is unsuitable excessive；When after injection pressure persistently increases, pressure curve is close to horizontal linear, swollen resistance device
Mould bag drainage is complete, starts to extrude hole wall, increases pressure after need to keeping injection pressure certain time again,
Until reaching expection grouting pressure；After injection pressure reaches expection grouting pressure, this pressure need to be maintained
Power 3-5 minute；Finally, close filler injection pump, complete the filling of swollen resistance device mould bag；
(4) slip casting is carried out by grouting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395178.0A CN104213562B (en) | 2014-08-12 | 2014-08-12 | The blocking device in a kind of slip casting aperture and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395178.0A CN104213562B (en) | 2014-08-12 | 2014-08-12 | The blocking device in a kind of slip casting aperture and using method thereof |
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| Publication Number | Publication Date |
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| CN104213562A CN104213562A (en) | 2014-12-17 |
| CN104213562B true CN104213562B (en) | 2016-08-24 |
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| CN201410395178.0A Active CN104213562B (en) | 2014-08-12 | 2014-08-12 | The blocking device in a kind of slip casting aperture and using method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812117A (en) * | 2017-03-16 | 2017-06-09 | 中国水电建设集团十五工程局有限公司 | Dam reverse drainage plugging device and method |
| CN109442130A (en) * | 2018-12-24 | 2019-03-08 | 北京市市政工程研究院 | Drainage pipeline pocket shape water blocking device and construction mounting structure and water blockoff tear blocking method open |
| CN110566209A (en) * | 2019-08-08 | 2019-12-13 | 中铁第四勘察设计院集团有限公司 | Non-return device of grouting pipe, grouting pipe and non-return method |
| CN111188350A (en) * | 2020-01-21 | 2020-05-22 | 上海勘察设计研究院(集团)有限公司 | Confined water dewatering well structure and dewatering method |
| CN112647380B (en) * | 2020-12-23 | 2022-04-26 | 江苏精享裕建工有限公司 | Roadbed concrete repairing grouting reinforcement method and reinforcement sealing device thereof |
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| CN1085981A (en) * | 1993-10-26 | 1994-04-27 | 涂正武 | Capsule sealing grouting and sealing device thereof |
| CN201627206U (en) * | 2010-04-08 | 2010-11-10 | 中国葛洲坝集团股份有限公司 | Grouting device for grouting anchor rod |
| CN102787602A (en) * | 2012-08-31 | 2012-11-21 | 中国水利水电第七工程局成都水电建设工程有限公司 | Curtain grouting technique |
| CN203007953U (en) * | 2013-01-16 | 2013-06-19 | 中铁十七局集团第三工程有限公司 | Inflatable grouting type slurry-stopping plug for hollow grouting anchor rod |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000144737A (en) * | 1998-11-16 | 2000-05-26 | Ohbayashi Corp | Compaction device of underwater charging material |
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2014
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|---|---|---|---|---|
| CN1085981A (en) * | 1993-10-26 | 1994-04-27 | 涂正武 | Capsule sealing grouting and sealing device thereof |
| CN201627206U (en) * | 2010-04-08 | 2010-11-10 | 中国葛洲坝集团股份有限公司 | Grouting device for grouting anchor rod |
| CN102787602A (en) * | 2012-08-31 | 2012-11-21 | 中国水利水电第七工程局成都水电建设工程有限公司 | Curtain grouting technique |
| CN203007953U (en) * | 2013-01-16 | 2013-06-19 | 中铁十七局集团第三工程有限公司 | Inflatable grouting type slurry-stopping plug for hollow grouting anchor rod |
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| 模袋法施工技术在海子水库南副坝截渗工程中的应用;陈焊华;《水利科技与经济》;20120331;第18卷(第3期);第96-97页 * |
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| CN104213562A (en) | 2014-12-17 |
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