CN209703511U - Grouting system is crept into advance in a kind of end - Google Patents
Grouting system is crept into advance in a kind of end Download PDFInfo
- Publication number
- CN209703511U CN209703511U CN201920213427.8U CN201920213427U CN209703511U CN 209703511 U CN209703511 U CN 209703511U CN 201920213427 U CN201920213427 U CN 201920213427U CN 209703511 U CN209703511 U CN 209703511U
- Authority
- CN
- China
- Prior art keywords
- grouting
- grouting pipe
- pipe
- advance
- crept
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 33
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 239000011435 rock Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 230000002787 reinforcement Effects 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 239000004568 cement Substances 0.000 claims description 9
- 210000002966 serum Anatomy 0.000 claims description 8
- 210000003205 muscle Anatomy 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 19
- 238000007569 slipcasting Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model provides a kind of end and creeps into grouting system in advance, the system comprises pre-grouting pipes, geological drilling rig, high-pressure injection pump, steel reinforcement cage, the pre-grouting pipe binding is on steel reinforcement cage, the drilling rod of the geological drilling rig, which is transferred through the pre-grouting pipe to stake end, to be contacted with rock stratum and creeps into the pre-grouting hole to be formed in the higher rock stratum of intensity, the high-pressure injection pump connects the pre-grouting pipe, pressure sensing alarm is set in the pre-grouting pipe, the pressure sensing alarm is arranged at the lower port of the pre-grouting pipe and the middle of the pre-grouting pipe.It solves the problems, such as that prior art high-pressure slip-casting is existing in the process and largely returns slurry, it is simple, reasonable to constitute；Rock stratum slurry injection technique more mature at present is combined with foundation pile pile end grouting technique, the intrinsic bearing capacity in rock stratum can be given full play to；While improving construction efficiency, control construction cost, basic pile bearing capacity is improved.
Description
Technical field
The utility model relates to a kind of grouting systems, and in particular to creep into grouting system in advance in a kind of end.
Background technique
The case where may require that the rock mass set depth such as weathering, gentle breeze in an end entrance in pile foundation engineering design, stake end is super
Preceding drilling grouting system is a kind of a kind of technology for entering rock difficulty based on solution rock-socketed piles end in foundation pile construction field, is passed through
Using after pile stake end drilling certain depth pre-grouting hole, formed slip casting channel, then by high-pressure injection pump along
Slip casting channel is pressed into cement slurry into stake end rock stratum slight crack, consolidates rock crack, and an end rock stratum is made to form an entirety, improves single
Pile bearing capacity.Advance borehole slip casting is crept into after foundation pile pile, will not generate any influence to the construction of foundation pile, and have
Conducive to continuous productive process is formed in work progress, construction speed is faster.
103882858 A of CN discloses a kind of diameter 300mm miniature pile construction method, it is characterised in that including following step
Rapid: a steel reinforcement cage and Grouting Pipe production, b drill setting-out, positioning, and c drilling machine drill in place, pore-forming, and d borehole cleaning buries steel reinforcement cage and note
Slurry pipe, e fill out filling crushed stone aggregate, the preparation of f cement slurry, g primary cementing slurry, h recementing slurry and i pile.The invention it is straight
Diameter 300mm miniature pile construction method, which has, effectively to be solved the problems, such as that construction site is narrow, not to be available big machinery, guarantees project
Smoothly implement and cheap, the good in economic efficiency advantage of operating expenses.Existing 104631438 A of patent CN discloses a kind of long spiral shell
Drilling & grouting piling concrete uplift pile construction method is revolved, step includes: preparation of construction；Unwrapping wire positioning；Drilling machine is in place；Drilling machine pore-forming；
It mentions brill while pea gravel concreten is perfused；Sealing of hole mud jacking；It is inserted into steel reinforcement cage；Clear up drilling tool and the earthwork.Beneficial effects of the present invention exist
In, by specific mud-jacking technology, by the soil body of concrete indentation bottom and side wall, and it is cementing integral with the soil body, increase
The contact area of pile body and the soil body, compared with traditional uplift pile, the extraction-resistant behavior of stake significantly improves.
During slip casting, it may appear that the phenomenon that cement grout largely returns out from the stake other injected holes, in the prior art,
General using pause slip casting, the mode that interval mends slurry carries out slip casting, until minimum grouting amount, which reaches, estimates grouting amount.But this skill
Art scheme easily causes the significant wastage of resource, and claim for eot etc..
Utility model content
Slurry largely is returned to solve the problems, such as that prior art high-pressure slip-casting is existing in the process, the utility model provides a kind of stake
The advanced drilling grouting system in end, specific technical solution are as follows:
Grouting system is crept at a kind of end in advance, the system comprises pre-grouting pipe, geological drilling rig, high-pressure injection pump,
Steel reinforcement cage, pre-grouting pipe binding on steel reinforcement cage, the drilling rod of the geological drilling rig through the pre-grouting pipe transfer to
Stake end contacts with rock stratum and creeps into the pre-grouting hole to be formed in the higher rock stratum of intensity, and the high-pressure injection pump connection is described advanced
Grouting Pipe, which is characterized in that pressure sensing alarm is set in the pre-grouting pipe, and the pressure sensing alarm is at least set
It sets at the lower port of the pre-grouting pipe and the middle of the pre-grouting pipe.
Specifically, the pressure sensing alarm is additionally arranged at the lower port 2/3 apart from the pre-grouting pipe.
Specifically, the pre-grouting pipe is seamless steel pipe.
Specifically, the internal diameter of the pre-grouting pipe is 110mm-140mm.
Specifically, the depth in the pre-grouting hole is 4-5m.
Specifically, the system also includes cement slurry or mixed serums, and the cement slurry or mixed serum are through high-pressure slip-casting
Pump connects the pre-grouting pipe.
It is as follows that grouting system working procedure is crept at the stake end in advance: (1) foundation pile construction to target formation；(2) tripping in
It is banded with the steel reinforcement cage after-pouring concrete of advanced drilling Grouting Pipe (port flexible sealing)；(3) after pile concrete final set, ground
Matter drilling machine (containing anchoring drilling machine, down-hole hammer drilling machine, knapsack drilling machine etc.) drilling rod is carried out along pre-grouting pipe tripping in foundation pile stake end
Creep into pore-creating in stake end；(4) pre-grouting pipe upper port connects high pressure water, rinses, expansion foundation pile stake end rock crack；(5) it is arranged
The warning value of pressure sensing alarm at different location；(6) pre-grouting pipe upper port connect high pressure water mud or mixed serum into
Row slip casing by pressure；(7) alarm signal of real-time detection pressure sensing alarm adjusts the switch of high-pressure injection pump in time, avoids
Largely return slurry phenomenon；(8) grouting amount of slip casting is crept at stake end in advance or grouting pressure reaches design requirement, terminates slip casting.
The utility model has the following beneficial effects:
One, caused by the setting of pressure sensing alarm is greatly alleviated because largely returning slurry phenomenon during high-pressure slip-casting
The wasting of resources further shortens the construction period；
Two, the grouting system in the utility model constitutes simple, reasonable；By more mature rock stratum slurry injection technique at present with
Foundation pile pile end grouting technique combines, and can give full play to the intrinsic bearing capacity in rock stratum；
Three, Grouting Pipe is bound in steel reinforcement cage in the utility model, eliminates the drilling insertion Grouting Pipe after foundation pile pile
The step of, construction cost is greatly saved, while improving construction efficiency, control construction cost, improves basic pile bearing capacity.
Detailed description of the invention
Fig. 1 is the structure chart that grouting system is crept at a kind of end in advance described in the utility model embodiment 1.
Fig. 2 is the position that pressure sensing alarm described in the utility model embodiment 1 is arranged in the pre-grouting pipe
It sets.
Appended drawing reference: 1- pre-grouting pipe, 2- pressure sensing alarm, 3- main reinforcement, 4- stirrup, 5- pile body sound detecting pipe.
Specific embodiment
Embodiment 1
Grouting system is crept at a kind of end in advance, the system comprises pre-grouting pipe 1, geological drilling rig, high-pressure injection pump,
Steel reinforcement cage, cement slurry or mixed serum, the steel reinforcement cage include main reinforcement 3 and stirrup 4, and the stirrup 4 hangs down mutually with main ribs 3
Directly, on steel reinforcement cage, the drilling rod of the geological drilling rig is transferred through the pre-grouting pipe to stake end for the pre-grouting pipe binding
It is contacted with rock stratum and creeps into the pre-grouting hole to be formed in the higher rock stratum of intensity, the high-pressure injection pump connects the pre-grouting
Pipe, the pre-grouting pipe is interior to be arranged pressure sensing alarm 2, and the pressure sensing alarm 2 is arranged in the pre-grouting
It is described at the lower port of the pipe 1 and middle of the pre-grouting pipe 2 and the lower port 2/3 apart from the pre-grouting pipe 1
Cement slurry or mixed serum connect the pre-grouting pipe 1 through high-pressure injection pump.The pre-grouting pipe 1 is seamless steel pipe, is held
Pressure is big, and intensity is high, suitable for outdoor severe construction environment.The internal diameter of the pre-grouting pipe 1 is 110mm-140mm, with ground
Subject to the matching of matter borer drill rod, internal diameter design science, and engineering pile arrangement of reinforcement can be counted, do not increase cost individually, is constructing at present
It is easy to enter, and facilitates priming petock and slurries.The depth in the pre-grouting hole is 4-5m.
The system also includes pile body sound detecting pipes 5, can find out Construction Condition in time, carry out next step preparation of construction, and
It learns unexpected situation in time, carries out emergency measure.
When creeping into grouting system in advance using the stake end, foundation pile construction to target formation first；Then on basis
Tripping in is banded with the steel reinforcement cage after-pouring concrete of pre-grouting pipe 1 in stake, and the port of the pre-grouting pipe 1 is using flexible close
Envelope；After pile concrete final set, geological drilling rig (containing anchoring drilling machine, down-hole hammer drilling machine, knapsack drilling machine etc.) drilling rod is along advanced
1 tripping in foundation pile stake end of Grouting Pipe carries out stake end and creeps into pore-creating；After hole to be drilled, high pressure is connect in 1 upper port of pre-grouting pipe
Water rinses, expansion foundation pile stake end rock crack；Then at remotely located different location pressure sensing alarm 2 warning value；
High pressure water mud is connect in 1 upper port of pre-grouting pipe later or mixed serum carries out slip casing by pressure；During slip casting, real-time detection
The alarm signal of pressure sensing alarm 2 adjusts the switch of high-pressure injection pump in time, avoids largely returning slurry phenomenon；Until stake end
The grouting amount or grouting pressure of advanced drilling slip casting reach designing points, terminate slip casting.
The preferable specific embodiment of embodiment described above, only the utility model, but the protection model of the utility model
Enclose and be not limited thereto, anyone skilled in the art in the technical scope that the utility model discloses, according to
The technical solution of the utility model and its inventive concept are subject to equivalent substitution or change, should all cover the protection in the utility model
Within the scope of.
Claims (6)
1. grouting system is crept at a kind of end in advance, the system comprises pre-grouting pipe, geological drilling rig, high-pressure injection pump, steel
Muscle cage, on steel reinforcement cage, the drilling rod of the geological drilling rig is transferred through the pre-grouting pipe to stake for the pre-grouting pipe binding
End contacts with rock stratum and creeps into the pre-grouting hole to be formed in the higher rock stratum of intensity, and the high-pressure injection pump connects the advanced note
Slurry pipe, which is characterized in that pressure sensing alarm is set in the pre-grouting pipe, and the pressure sensing alarm is at least arranged
At the lower port of the pre-grouting pipe and the middle of the pre-grouting pipe.
2. grouting system is crept at according to claim 1 end in advance, which is characterized in that the pressure sensing alarm is also
It is arranged at the lower port 2/3 apart from the pre-grouting pipe.
3. grouting system is crept at according to claim 1 end in advance, which is characterized in that the pre-grouting pipe is seamless
Steel pipe.
4. grouting system is crept at according to claim 1 end in advance, which is characterized in that the internal diameter of the pre-grouting pipe
For 110mm-140mm.
5. grouting system is crept at according to claim 1 end in advance, which is characterized in that the depth in the pre-grouting hole
For 4-5m.
6. grouting system is crept at according to claim 1 end in advance, which is characterized in that the system also includes cement slurries
Or mixed serum, the cement slurry or mixed serum connect the pre-grouting pipe through high-pressure injection pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920213427.8U CN209703511U (en) | 2019-02-15 | 2019-02-15 | Grouting system is crept into advance in a kind of end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920213427.8U CN209703511U (en) | 2019-02-15 | 2019-02-15 | Grouting system is crept into advance in a kind of end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209703511U true CN209703511U (en) | 2019-11-29 |
Family
ID=68641868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920213427.8U Expired - Fee Related CN209703511U (en) | 2019-02-15 | 2019-02-15 | Grouting system is crept into advance in a kind of end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209703511U (en) |
-
2019
- 2019-02-15 CN CN201920213427.8U patent/CN209703511U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191129 |