CN109779668A - A kind of tunnel jet blower pre-embedded steel slab reinforcement means - Google Patents
A kind of tunnel jet blower pre-embedded steel slab reinforcement means Download PDFInfo
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- CN109779668A CN109779668A CN201910041731.3A CN201910041731A CN109779668A CN 109779668 A CN109779668 A CN 109779668A CN 201910041731 A CN201910041731 A CN 201910041731A CN 109779668 A CN109779668 A CN 109779668A
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- steel slab
- embedded steel
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Abstract
The present invention relates to a kind of tunnel jet blower pre-embedded steel slab reinforcement means, belong to technical field of tunnel construction, has the advantages that reinforce the pre-embedded steel slab for not meeting pulling capacity intensity requirement.This method comprises the following steps: S1: clearing up pre-embedded steel slab surface；S2: in the position of the upper determining drilling of pre-embedded steel slab；S3: being drilled on pre-embedded steel slab to concrete wall surface with electric drill, is drilled vertical with pre-embedded steel slab；S4: the bottom hole polishing of drilling is in the arc-shaped；S5: dust in cleaning drilling；S6: drilling, anchor adhesive and medicament pipe are heated；S7: part anchor adhesive is injected to foot of hole；S8: the round end direction of medicament pipe is put into and drills and is pushed into bottom hole；S9: using electric hammer or electric drill and dedicated installs fixture, screw rod is rotatably inserted into until bottom hole is stopped rotating at once when being threaded to mark position on bottom hole or screw rod；S10: after medicament is fully hardened, plus washer with the fixed pre-embedded steel slab of nut on the screw rod of pre-embedded steel slab.
Description
Technical field
The present invention relates to technical field of tunnel construction more particularly to a kind of tunnel jet blower pre-embedded steel slab reinforcement means.
Background technique
Jet blower pre-embedded steel slab is with the connector that jet blower is mounted on to tunnel roof.
In constructing tunnel, generally use the steel structure connection in pre-embedded steel slab and tunnel, then again casting concrete at tunnel
Concrete inner wall pre-embedded steel slab weight transfer to foundation engineering, since the weight of jet blower is larger, and in use
Vibration can be generated, therefore higher to the force request of pre-embedded steel slab.
Pre-embedded steel slab is to be placed in above arrangement of reinforcement, before concrete casting in the casting of concrete under normal conditions
During vibration, part pre-embedded steel slab may be made to be subjected to displacement, before jet blower is installed, pre-embedded steel slab is drawn
When pulling out test, the requirement of pulling capacity required for pre-embedded steel slab may be not achieved, this requires that being reinforced to pre-embedded steel slab.
Summary of the invention
The purpose of the present invention is to provide a kind of tunnel jet blower pre-embedded steel slab reinforcement means, have to not meeting drawing
The advantages of pre-embedded steel slab of power intensity requirement is reinforced.
Above-mentioned purpose of the invention has the technical scheme that
A kind of tunnel jet blower pre-embedded steel slab reinforcement means, described method includes following steps: S1: to pre-embedded steel slab surface into
Row cleaning；S2: in the position of the upper determining drilling of pre-embedded steel slab；S3: it is drilled on pre-embedded steel slab to concrete wall surface with electric drill
It is interior, it drills vertical with pre-embedded steel slab；S4: the bottom hole polishing of drilling is in the arc-shaped；S5: dust in cleaning drilling；S6: to brill
Hole, anchor adhesive and medicament pipe are heated；S7: part anchor adhesive is injected to foot of hole, anchor adhesive is made to be covered in foot of hole
There is certain thickness；S8: the round end direction of medicament pipe is put into and drills and is pushed into bottom hole；S9: electric hammer or electric drill and dedicated peace are used
Screw rod is rotatably inserted into until bottom hole is stopped rotating at once when being threaded to mark position on bottom hole or screw rod by clamps；S10: to
After medicament is fully hardened, plus washer with the fixed pre-embedded steel slab of nut on the screw rod of pre-embedded steel slab.
Further, the diameter of the drilling is 4~6mm bigger than the diameter of screw rod.
Further, cleaning drill in dust method are as follows: with dust in the method cleaning eye of high-pressure pump, or use hairbrush
Add inflator, the diameter wanted and drilled using the diameter of hairbrush is essentially identical, and being pushed and pulled back and forth in hole with hairbrush several times will be in hole
Dust is blown 2~3 times with inflator again after cleaning up, repeatedly that the dust thorough cleaning in hole is clean.
Further, the method for drilling is heated are as follows: the heating rod insertion drilling that diameter is slightly less than drilling is heated to bottom hole
The temperature of stick is controlled at 60~80 DEG C.
Further, the method for anchor adhesive and medicament pipe is heated are as follows: with 60~80 DEG C of cladding medicament pipes and load anchor adhesive
Container.
Further, the bottom hole of drilling is polished method in the arc-shaped are as follows: the drill bit for replacing electric drill is changed on electric drill
The hemispherical drill bit in dedicated end.
In conclusion the invention has the following advantages:
(1) before being pushed into Reagent Tube into drilling, anchor adhesive is injected into drilling hole bottom, makes Reagent Tube in the mistake of push-in drilling
The air in drilling is discharged in journey, so as to reduce the bubble generated after glue and reagent solidification, reduces bubble to chemical anchors
Solid influence；
(2) heating drilling, anchor adhesive and medicament pipe, can increase the mobility of medicament in anchor adhesive and medicament pipe, reduce due to stream
Air caused by temperature low viscosity is big is not easy the probability being discharged, the bubble after reducing anchor adhesive and medicament solidification.
Detailed description of the invention
Fig. 1 is the method flow block diagram one of the embodiment of the present invention；
Fig. 2 is the method flow block diagram two of the embodiment of the present invention；
Fig. 3 is the schematic diagram that the present invention drills；
Fig. 4 is the structural schematic diagram after the rounding of drilling hole bottom of the present invention；
Fig. 5 is the structural schematic diagram after present invention drilling injection anchor adhesive；
Fig. 6 is the structural schematic diagram after Reagent Tube insertion turn hole of the present invention；
Fig. 7 is the structural schematic diagram after screw rod insertion drilling of the present invention；
Fig. 8 is the structural schematic diagram after screw rod installation nut of the present invention.
Appended drawing reference: 1, it drills；2, pre-embedded steel slab；3, anchor adhesive；4, Reagent Tube；5, screw rod；6, washer；7, nut；8,
Sleeve.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the embodiment of the present invention is described.
The invention discloses a kind of tunnel jet blower pre-embedded steel slab reinforcement means, as depicted in figs. 1 and 2, including it is as follows
Step:
S1: pre-embedded steel slab surface is cleared up；
Specifically.It is performed corresponding processing according to the actual conditions in each building site, is cleaned to original structure layer or stress layer.
S2: in the position of the upper determining drilling of pre-embedded steel slab；
Specifically, in pre-buried steel lining out, the hole point of drilling is drawn.
S3: being drilled on pre-embedded steel slab to concrete wall surface with electric drill, is drilled vertical with pre-embedded steel slab；
Specifically, as shown in figure 3, can be for the processing mode vertical with pre-embedded steel slab of guaranteeing to drill is prepared in advance and electric drill brill
For head diameter to mating sleeve, sleeve is integrally in annulus cylindricality, using the hole point drawn on pre-embedded steel slab is axle center by pre-buried by sleeve
On steel plate, drill then the drill bit of electric drill to be passed through to the inner hole of sleeve after.
S4: the bottom hole polishing of drilling is in the arc-shaped；
Specifically, as shown in figure 4, the drill bit of replacement electric drill, changes the hemispherical drill bit in dedicated end, device to hole on electric drill
It polishes at bottom.By bottom hole polishing be arc-shaped after, due to drilling be it is directed downwardly, after entering anchor adhesive to drilling hole rising pouring, anchoring
Glue can flow downward, and arc-shaped bottom hole and hole inner sidewall seamlessly transit, and can avoid anchor adhesive in bottom hole and hole side wall transition
Bubble is generated on angle, as there are bubbles after anchor adhesive solidification, it would be possible to reduce the breakout capacity of screw rod.
S5: dust in cleaning drilling；
Specifically, with dust in the method cleaning eye of high-pressure pump, or with hairbrush add inflator, want and bore using the diameter of hairbrush
The diameter in hole is essentially identical, is pushed and pulled in hole back and forth with hairbrush and blows 2~3 with inflator again after several times cleaning up dust in hole
It is secondary, it is repeatedly that the dust thorough cleaning in hole is clean.
S6: drilling, anchor adhesive and medicament pipe are heated；
Specifically, the method for drilling is heated are as follows: the heating rod insertion that diameter is slightly less than drilling drills to bottom hole, the temperature of heating rod
Degree control is at 60~80 DEG C.The method for heating anchor adhesive and medicament pipe are as follows: with 60~80 DEG C of cladding medicament pipes and load anchor adhesive
Container.Heating drilling, anchor adhesive and medicament pipe, can increase the mobility of medicament in anchor adhesive and medicament pipe, reduce due to stream
Air caused by temperature low viscosity is big is not easy the probability being discharged, the bubble after reducing anchor adhesive and medicament solidification.
S7: part anchor adhesive is injected to foot of hole, so that anchor adhesive is covered in foot of hole certain thickness；
Specifically, as shown in figure 5, anchor adhesive is first added, medicament pipe on the one hand can be tentatively clung, avoids medicament pipe sliding from drilling
Out,；On the other hand, anchor adhesive can reduce the gap between medicament pipe and drilling, be discharged between medicament pipe outer wall and drill hole inner wall
Air reduces the bubble generated after medicament solidification.
S8: the round end direction of medicament pipe is put into and drills and is pushed into bottom hole；
Specifically, as shown in fig. 6, anchor adhesive is gradually squeezed out during Reagent Tube push-in drilling, while the sky in boring is discharged
Gas.
S9: using electric hammer or electric drill and dedicated installs fixture, screw rod is rotatably inserted into until bottom hole, is threaded to bottom hole or screw rod
When upper mark position, stop rotating at once；
Specifically, electric hammer or electric drill should be adjusted to shelves at a slow speed, and should not use impact mode.When being threaded to flag bit on bottom hole or bolt
It when setting, stops rotating at once, removes installs fixture, avoid disturbing to before being fully cured after gel.Time-out rotation will lead to glue
It is lost, influences anchor force.As shown in Figure 7.
S10: after medicament is fully hardened, plus washer with the fixed pre-embedded steel slab of nut on the screw rod of pre-embedded steel slab.Such as
Shown in Fig. 8.
Claims (6)
1. a kind of tunnel jet blower pre-embedded steel slab reinforcement means, which is characterized in that described method includes following steps:
S1: pre-embedded steel slab surface is cleared up；
S2: in the position of the upper determining drilling of pre-embedded steel slab；
S3: being drilled on pre-embedded steel slab to concrete wall surface with electric drill, is drilled vertical with pre-embedded steel slab；
S4: the bottom hole polishing of drilling is in the arc-shaped；
S5: dust in cleaning drilling；
S6: drilling, anchor adhesive and medicament pipe are heated；
S7: part anchor adhesive is injected to foot of hole, so that anchor adhesive is covered in foot of hole certain thickness；
S8: the round end direction of medicament pipe is put into and drills and is pushed into bottom hole；
S9: using electric hammer or electric drill and dedicated installs fixture, screw rod is rotatably inserted into until bottom hole, is threaded to bottom hole or screw rod subscript
When will position, stop rotating at once；
S10: after medicament is fully hardened, plus washer with the fixed pre-embedded steel slab of nut on the screw rod of pre-embedded steel slab.
2. a kind of tunnel jet blower pre-embedded steel slab reinforcement means according to claim 1, which is characterized in that the drilling
Diameter it is 4~6mm bigger than the diameter of screw rod.
3. a kind of tunnel jet blower pre-embedded steel slab reinforcement means according to claim 1, which is characterized in that cleaning drilling
The method of interior dust are as follows: add inflator with dust in the method cleaning eye of high-pressure pump, or with hairbrush, wanted using the diameter of hairbrush
It is essentially identical with the diameter of drilling, it is pushed and pulled in hole with hairbrush and is blown again with inflator after several times cleaning up dust in hole back and forth
It is 2~3 times, repeatedly that the dust thorough cleaning in hole is clean.
4. a kind of tunnel jet blower pre-embedded steel slab reinforcement means according to claim 1, which is characterized in that heating drilling
Method are as follows: diameter is slightly less than the heating rod insertion drilling of drilling to bottom hole, the temperature of heating rod is controlled at 60~80 DEG C.
5. a kind of tunnel jet blower pre-embedded steel slab reinforcement means according to claim 1, which is characterized in that heating anchoring
The method of glue and medicament pipe are as follows: coat medicament pipe with 60~80 DEG C and load the container of anchor adhesive.
6. a kind of tunnel jet blower pre-embedded steel slab reinforcement means according to claim 1, which is characterized in that by drilling
Bottom hole is polished method in the arc-shaped are as follows: the drill bit for replacing electric drill changes the hemispherical drill bit in dedicated end on electric drill.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041731.3A CN109779668B (en) | 2019-01-16 | 2019-01-16 | Tunnel jet fan embedded steel plate reinforcing method |
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|---|---|---|---|
| CN201910041731.3A CN109779668B (en) | 2019-01-16 | 2019-01-16 | Tunnel jet fan embedded steel plate reinforcing method |
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| CN109779668A true CN109779668A (en) | 2019-05-21 |
| CN109779668B CN109779668B (en) | 2020-12-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424446A (en) * | 2019-07-15 | 2019-11-08 | 中建一局集团安装工程有限公司 | Fixing construction method for chemical anchor bolts of distribution cabinet |
| CN114396174A (en) * | 2022-01-11 | 2022-04-26 | 中冶南方城市建设工程技术有限公司 | Reinforcing method capable of improving bearing capacity of embedded steel plate |
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| SU1201517A1 (en) * | 1984-04-02 | 1985-12-30 | Карагандинское Ордена Октябрьской Революции Производственное Объединение По Добыче Угля | Main airing fan unit |
| WO2007081216A1 (en) * | 2006-01-10 | 2007-07-19 | Protan A/S | Method and system for venting tunnels; mine galleries or the like |
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| CN201513193U (en) * | 2009-10-15 | 2010-06-23 | 中国水电顾问集团华东勘测设计研究院 | Structure for mounting jet rod in tunnel through adopting prestressed anchor rod |
| CN203769826U (en) * | 2014-03-31 | 2014-08-13 | 中铁第一勘察设计院集团有限公司 | Lateral type tunnel fan erecting device |
| CN105714697A (en) * | 2016-03-14 | 2016-06-29 | 岩土科技股份有限公司 | Concrete bridge plate reinforcing method based on pre-stressed steel plate |
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2019
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| SU1201517A1 (en) * | 1984-04-02 | 1985-12-30 | Карагандинское Ордена Октябрьской Революции Производственное Объединение По Добыче Угля | Main airing fan unit |
| CN101107450A (en) * | 2004-11-26 | 2008-01-16 | 专利应用技术公司 | Affixing an anchor in a drilled hole |
| WO2007081216A1 (en) * | 2006-01-10 | 2007-07-19 | Protan A/S | Method and system for venting tunnels; mine galleries or the like |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424446A (en) * | 2019-07-15 | 2019-11-08 | 中建一局集团安装工程有限公司 | Fixing construction method for chemical anchor bolts of distribution cabinet |
| CN114396174A (en) * | 2022-01-11 | 2022-04-26 | 中冶南方城市建设工程技术有限公司 | Reinforcing method capable of improving bearing capacity of embedded steel plate |
| CN114396174B (en) * | 2022-01-11 | 2023-12-12 | 中冶南方城市建设工程技术有限公司 | Reinforcing method capable of improving bearing capacity of embedded steel plate |
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| CN109779668B (en) | 2020-12-25 |
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