CN109056698A - The method that blower concrete foundation cavity is repaired using high polymer - Google Patents
The method that blower concrete foundation cavity is repaired using high polymer Download PDFInfo
- Publication number
- CN109056698A CN109056698A CN201811095516.3A CN201811095516A CN109056698A CN 109056698 A CN109056698 A CN 109056698A CN 201811095516 A CN201811095516 A CN 201811095516A CN 109056698 A CN109056698 A CN 109056698A
- Authority
- CN
- China
- Prior art keywords
- high polymer
- injection
- hole
- cavity
- concrete
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a kind of methods for repairing blower concrete foundation cavity using high polymer, include the following steps: step 1 visual analysis and detection；The detection of step 2 closed-circuit television；Step 3 cavity connectivity high pressure gas detection；Step 4 injects pipe cap production；Step 5 installation injection pipe cap；Step 6 high-pressure injection high polymer；Complete using high polymer to blower concrete foundation cavity repairing construction.The present invention in wind-powered electricity generation large volume concrete structural to coming to nothing and the implicit diseases such as foundation ring loosens provide a kind of no-dig technique, the quick maintenance method out of service without blower, construction disturbance is small, high-efficient, technical advantage and remarkable economic and social benefits have a extensive future.
Description
Technical field
This technology belongs to facility basic maintenance and maintenance technique, and in particular to wind electric field blower concrete foundation cavity, wind
The no-dig technique high polymer maintenance technique of machine foundation ring loosening disease.
Background technique
Wind-powered electricity generation be it is a kind of cleaning, green renewable energy, for solve energy crisis, mitigate environmental pollution, adjustment energy
Source structure etc. has great importance.China possesses wind energy resources abundant, is that global wind-power electricity generation increases most fast and advises
The maximum country of mould, Wind Power Generation Industry installation scale the first in the world.
Foundation ring is the infrastructure device built-in fitting of support tower barrel structure, and basic flange ring and bottom end basis platform are a reinforcing bars
Concrete Integral combined structure, due to the poor, ring structure of temperature contracting of concrete shrinkage characteristic, flange ring and concrete unlike material
Etc. factors, slight clearance cavity is also easy to produce in blower process of construction between flange and concrete.Blower top in the process of running
Component drives foundation ring and connecting flange and concrete foundation to repeated relative displacement friction under wind load effect, increases base
Plinth ring and concrete gap cavity, form security risk.The prior art are as follows: pass through drilling or anchor pole cement injection class into gap
Or epoxy resin grouting material material, repair process blower need to be shut down and preserving period is long；Waterproof failure between concrete bearing platform and tower
Afterwards, rainwater infiltration causes concrete perfusion water-cement ratio not up to standard；The cement material being perfused afterwards and original cement concrete base hold
Easily peelable, Dry Shrinkage Performance, cannot be filled reinforcing in fracture cavity well, repairing effect is undesirable in addition.
High-pressure injection high polymer technology is according to 1:1 ratio to injecting component A modified isocyanate and B component group at disease
Close polyethers, two kinds of materials form solid after reacting rapidly, achieve the purpose that Fast Filling come to nothing, ruggedized construction, high polymer
Material is suitble to the loosening of wind-power tower foundation ring to add with the characteristics such as early strong, waterproof, light, durable, environmentally friendly, high-strength, mechanical index
Gu punishment.
Summary of the invention
The present invention is implicit for the buried foundation ring loosening in large volume concrete structural and inside concrete cavity etc.
Disease is filled reinforcing using the characteristics such as the early strong, waterproof of high polymer material, light, durable, environmentally friendly, high-strength, plays non-open
Dig the effect of rapid-maintenance.
It is a kind of using high polymer repair blower concrete foundation cavity method pass through following steps realization:
Step 1 visual analysis and detection: investigation blower concrete bearing platform and tower junction waterproof material tear failure degree are split
Slit width degree seals crack between concrete bearing platform and tower using sealant；And coagulation is measured by corresponding regulation to concrete bearing platform
Native intensity.
The detection of step 2 closed-circuit television: using water drilling method or dry working system, avoids perforation muscle uniformly on concrete bearing platform
Four inspecting holes are vertically bored, pitch-row tower 15-25cm, hole is deep to flange bottom or less 5-10mm, the miniature video camera of wired connection
Equipment is put into inspecting hole, slowly declines and constantly rotation is to bottom hole, the diseases such as observation concrete structure internal fissure cavity are whole
A process is recorded a video and is saved.
Step 3 cavity connectivity high pressure gas detection: after the completion of step 2, an inspecting hole is reserved, other inspecting holes are used
Plug closing, is installed to the tracheae of connection air compressor machine unclosed inspecting hole, is inflated, and then extracts and closes one by one and is stifled
Head checks whether there is compressed air and emerges, and determines whether be connected between hole.
The injection pipe cap production of step 4 high polymer: the metal catheter or pvc pipe of adaptation diameter are installed and are fixedly secured in spy
In the injection cap of system, catheter length is determined according to hole depth, generally less than hole depth 20-30cm；Using sealant tape or Plastic cap
The processing of slurries one-way flow is carried out to catheter end head (tube bottom)；
The injection pipe cap installation of step 5 high polymer: the injection catheter made vertically is put into inspecting hole, injection cap is exposed at spy
Outside hole, and the above gap in injection catheter end in inspecting hole blocked closed, prevents in injection process slurries along between conduit and hole wall
Gap is overflowed.
Step 6 high-pressure injection high polymer: it is injected using integrated form high polymer grouting equipment.
Further, the integrated form high polymer grouting equipment, the continual and steady offer injection pressure 5-7Mpa of energy, and
It is able to achieve uninterrupted injection.
Further, the described closed-circuit television detection using high definition it is portable in peep video recording equipment, automatic light source, tool
The function of standby real-time data transmission.
Further, the empty connectivity high pressure gas detection, which is realized, detects the work being mutually authenticated with closed-circuit television
With.
Further, the inspecting hole realizes that a hole is dual-purpose with injection orifice, avoids repetition drilling.
Further, the diseases such as free from flaw cavity inside miniature video camera equipment Detection of Concrete, inspecting hole is without injection
High polymer is reinforced, and need to only be filled.
Further, the high polymer material generated by raw material component A modified isocyanate and B component combined polyether
Material has the function of early strong, high-strength, lightweight, waterproof etc..
Further, the high polymer material reaction time can from several seconds to a few minutes, and final setting time is adjustable, and preserving period can
Control, comparison conventional cement class grouting efficiency significantly improve.
Further, after the high polymer material final set, unconfined compressive strength is not less than 50Mpa, and intensity can be with
It is adjusted according to design.
Further, pressure maintaining is not necessarily in the high polymer injection process and after injection.
Further, the present invention does not need water using high polymer material and participates in chemical reaction, is not only suitable for water environment,
It is applied widely suitable for water-less environment, and can solve concrete perfusion and original structure with concrete base layer bonding securely
Concrete binding loosely the problem of.
Further, for the high polymer material that the present invention uses for closed-cell materials, seepage-resistant grade is high, the work with waterproof leakproof
With playing to tower and concrete junction crack sealing, prevent rainwater infiltration.
Further, the present invention injects high polymer by inspecting hole and repairs inside concrete cavity, without carrying out to concrete
It cuts and pours again, do not generate construction rubbish, construction disturbance is small, pours again relative to excavating, can save substantial contribution.
Further, in the present invention high polymer that uses without providing construction water and not discharging construction sewage, this as
Environment-friendly materials do not pollute surrounding enviroment.
China is global wind-power electricity generation scale and install largest country, as the service time increases, blower coagulation
The loosening maintenance task of foundation ring caused by earth foundation interior void is heavy, and the present invention is blower concrete foundation cavity and foundation ring
It the implicit disease such as loosens and provides a kind of no-dig technique, the quick maintenance method out of service without blower, technical advantage and economy
Social benefit is significant.
Detailed description of the invention
Fig. 1 high polymer object injects pipe cap；
Fig. 2 inspecting hole arrangement schematic diagram
Fig. 3 high polymer injects diagrammatic cross-section；
Fig. 4 closed-circuit television miniature video camera equipment schematic diagram
Wherein 1: high polymer injection cap；2: conduit；3: foundation ring；4: inspecting hole；5: flange；6: concrete and tower junction；7:
Concrete bearing platform；8: miniature webcam transmission line；9 miniature webcams.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
Step 1 investigation blower concrete bearing platform and 6 waterproof material tear failure degree of tower junction, fracture width, use are close
Sealing seals crack 6 between concrete bearing platform and tower；And concrete strength is measured by corresponding regulation to concrete bearing platform 7.
Step 2 uses water drilling method or dry working system, avoids perforation muscle and uniformly vertically bores four spies on concrete bearing platform
Hole 4, pitch-row tower 15-25cm, hole are deep to flange bottom or less 5-10mm, and the miniature webcam 9 for having transmission line 8 to connect is put into
In inspecting hole, slowly decline and constantly rotation be to bottom hole, the diseases such as observation concrete structure internal fissure cavity, whole process into
Row is recorded a video and is saved.Miniature video camera equipment automatic light source, has the function of real-time data transmission.
Step 3 reserves an inspecting hole 4 after the completion of step 2, other inspecting holes is closed using plug, connection air compressor machine
Tracheae be installed to unclosed inspecting hole, be inflated, then one by one extract and close plug, check whether there is compressed air and emit
Out, it is mutually authenticated with closed-circuit television detection, determines whether be connected between hole.
Step 4 installs the metal catheter or pvc pipe 2 of adaptation diameter and be fixedly secured in special injection cap 1, conduit
Length is determining according to hole depth, generally less than hole depth 20-30cm；Using sealant tape or Plastic cap to catheter end head (tube bottom) into
The processing of row slurries one-way flow；
Step 5 is vertically put into the injection catheter 2 made in inspecting hole, and injection cap 1 is exposed at outside inspecting hole, and note in inspecting hole
It is closed to penetrate the above gap closure of catheter end head, prevents slurries in injection process from overflowing along conduit and hole wall gap.
The step 6 offer injection pressure 5- that component A modified isocyanate and B component combined polyether is continual and steady by energy
7Mpa, and be able to achieve the integrated form high polymer grouting equipment uninterruptedly injected and injected, injection is successively or jump hole carries out.
When high polymer material inspecting hole 4 or is emerged from concrete and tower junction 6 from such as Fig. 2, Fig. 3, illustrate concrete
Connection cavity fills, and can stop injecting, and is not necessarily to pressure maintaining；There is no the inspecting hole of grout, needs independent slip casting.
Inspecting hole realizes that a hole is dual-purpose with injection orifice, avoids repetition drilling, and inspecting hole is no less than four, preferential increase inspecting hole
When, it can be after the completion of four inspecting holes be injected, the uniform inspecting hole that increases is as injection orifice progress the second wheel injection.
After the injection of all inspecting holes is full or the inspecting hole grout of connection, injection cap is taken out using spanner and is recycled, finally
Injected hole is smoothed out using cement, that is, completes blower concrete foundation cavity injection maintenance construction.
When miniature video camera equipment is by the diseases such as free from flaw cavity inside inspecting hole Detection of Concrete, the inspecting hole is without note
High polymer reinforcing is penetrated, need to only be filled
The specific embodiment of invention is described in above-mentioned combination attached drawing, but the limitation not protected to the present invention, it should
The above description pointed out all is exemplary, and technical and scientific terms used herein has the technology with the application fields
The normally understood identical meanings of personnel, those skilled in the art should understand that.On the basis of the present invention, those skilled in the art
Member does not need to make the creative labor the modification made and process adjustment is still within the scope of the present invention.
Claims (8)
1. a kind of method for repairing blower concrete foundation cavity using high polymer, which comprises the following steps:
Step 1 visual analysis and detection: investigation blower concrete bearing platform and tower junction waterproof material tear failure degree are split
Slit width degree seals crack between concrete bearing platform and tower using sealant；And measure the concrete strength of concrete bearing platform；
The detection of step 2 closed-circuit television: using water drilling method or dry working system, and it is equably vertical on concrete bearing platform to avoid perforation muscle
Four inspecting holes are bored, for the inspecting hole away from tower 15-25cm, hole is deep to flange bottom or less 5-10mm, and miniature wired connection is taken the photograph
As equipment is put into inspecting hole, slowly declines and constantly rotation is to inspecting hole bottom, observation concrete structure internal fissure cavity etc.
Disease, whole process are recorded a video and are saved；
Step 3 cavity connectivity high pressure gas detection: after the completion of step 2, reserving an inspecting hole, other inspecting holes are used plug
Closing, is installed to the tracheae of connection air compressor machine unclosed inspecting hole, is inflated, and then extracts and close one by one plug, inspection
Whether have compressed air emerge, determine whether be connected between each inspecting hole if looking into；
The injection pipe cap production of step 4 high polymer: the metal catheter or pvc pipe of adaptation diameter are installed and are fixedly secured special
In injection cap, catheter length is determined according to hole depth, generally less than hole depth 20-30cm；Using sealant tape or Plastic cap to leading
Pipe end carries out the processing of slurries one-way flow；
The injection pipe cap installation of step 5 high polymer: the injection catheter made vertically is put into inspecting hole, injection cap is exposed at spy
Outside hole, and the above gap in injection catheter end in inspecting hole blocked closed, prevents in injection process slurries along between conduit and hole wall
Gap is overflowed；
Step 6 high-pressure injection high polymer: it is injected using integrated form high polymer grouting equipment.
2. as right 1 requires a kind of method for repairing blower concrete foundation cavity using high polymer, which is characterized in that
The integrated form high polymer grouting equipment can be injected uninterruptedly, injection pressure 5-7Mpa.
3. as right 1 requires a kind of method for repairing blower concrete foundation cavity using high polymer, which is characterized in that
The raw material of the high polymer material are made of component A modified isocyanate and B component combined polyether.
4. as right 3 requires a kind of method for repairing blower concrete foundation cavity using high polymer, which is characterized in that
The high polymer material reaction time can be several seconds to a few minutes.
5. as right 3 requires a kind of method for repairing blower concrete foundation cavity using high polymer, which is characterized in that
Material unconfined compressive strength is not less than 50Mpa after the high polymer material final set.
6. as right 1 requires a kind of method for repairing blower concrete foundation cavity using high polymer, which is characterized in that
High polymer slurries are emerged from other inspecting holes and are filled as intercommunicating pore in the injection process, and the inspecting hole of non-grout needs independent slip casting.
7. as right 1 requires a kind of method for repairing blower concrete foundation cavity using high polymer, which is characterized in that
Pressure maintaining is not necessarily in injection process and after injection.
8. as right 1 requires a kind of method for repairing blower concrete foundation cavity using high polymer, which is characterized in that
Free from flaw cavity disease inside the miniature video camera equipment Detection of Concrete, the inspecting hole are reinforced without injecting high polymer,
It need to only fill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811095516.3A CN109056698A (en) | 2018-09-19 | 2018-09-19 | The method that blower concrete foundation cavity is repaired using high polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811095516.3A CN109056698A (en) | 2018-09-19 | 2018-09-19 | The method that blower concrete foundation cavity is repaired using high polymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109056698A true CN109056698A (en) | 2018-12-21 |
Family
ID=64762178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811095516.3A Pending CN109056698A (en) | 2018-09-19 | 2018-09-19 | The method that blower concrete foundation cavity is repaired using high polymer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109056698A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565710A (en) * | 2019-08-09 | 2019-12-13 | 国家电投集团江苏新能源有限公司 | foundation ring loosening and reinforcing treatment scheme |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261264A (en) * | 2007-03-09 | 2008-09-10 | 郑州大学 | Semi-rigid base layer disease detection and high polymer grouting rapid servicing technology |
| CN102767173A (en) * | 2012-07-09 | 2012-11-07 | 河海大学 | High polymer material slurry filled discrete material pile composite foundation and construction method thereof |
| CN104652415A (en) * | 2015-02-09 | 2015-05-27 | 郑州安源工程技术有限公司 | Underground pipeline sedimentation repair high polymer membrane bag grouting method |
| CN106638475A (en) * | 2016-11-18 | 2017-05-10 | 中国电建集团成都勘测设计研究院有限公司 | Earth and rockfill dam body crack repair method |
| CN108487249A (en) * | 2018-03-06 | 2018-09-04 | 中国电建集团华东勘测设计研究院有限公司 | A kind of blower foundation reinforcement means |
-
2018
- 2018-09-19 CN CN201811095516.3A patent/CN109056698A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261264A (en) * | 2007-03-09 | 2008-09-10 | 郑州大学 | Semi-rigid base layer disease detection and high polymer grouting rapid servicing technology |
| CN102767173A (en) * | 2012-07-09 | 2012-11-07 | 河海大学 | High polymer material slurry filled discrete material pile composite foundation and construction method thereof |
| CN104652415A (en) * | 2015-02-09 | 2015-05-27 | 郑州安源工程技术有限公司 | Underground pipeline sedimentation repair high polymer membrane bag grouting method |
| CN106638475A (en) * | 2016-11-18 | 2017-05-10 | 中国电建集团成都勘测设计研究院有限公司 | Earth and rockfill dam body crack repair method |
| CN108487249A (en) * | 2018-03-06 | 2018-09-04 | 中国电建集团华东勘测设计研究院有限公司 | A kind of blower foundation reinforcement means |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565710A (en) * | 2019-08-09 | 2019-12-13 | 国家电投集团江苏新能源有限公司 | foundation ring loosening and reinforcing treatment scheme |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110082218B (en) | Tunnel lining structure model test device and test method | |
| CN104594348B (en) | Enlarged footing bellows anchor pole and construction method thereof | |
| CN103938644B (en) | The reserved precast concrete cushion cap of stake socket bore and the assembling many pile foundations mounting method based on this cushion cap | |
| CN103912007B (en) | The installation method of the precast concrete cushion cap of reserved basic annular distance and stake nest annular distance and the many pile foundations of assembled based on this cushion cap | |
| CN108487249B (en) | Method for reinforcing wind turbine foundation | |
| CN108086347B (en) | Reinforce screwed pipe and reinforces helix tube type suction barrel base and its application method | |
| CN208235555U (en) | Prefabricated assembled open caisson | |
| CN103938645B (en) | The precast concrete cushion cap in reserved basic annular distance and stake nest hole and many pile foundations of the assembled installation method based on this cushion cap | |
| CN110284874A (en) | The weak consolidated formation gradient of deep water strengthens cementing fluid function and effect evaluating apparatus and method | |
| CN102220762A (en) | Method and device for disposing underwater pouring concrete pile breaking accident | |
| CN109944244A (en) | A kind of anti-float anchor rod and its construction method | |
| CN109056698A (en) | The method that blower concrete foundation cavity is repaired using high polymer | |
| CN106284999A (en) | Assembled architecture haydite concrete batten of internal partition mounting process | |
| CN109944236A (en) | Root pile actively follows track delamination pour slurry system and construction method | |
| CN203782733U (en) | Precast concrete bearing platform with reserved foundation ring hole and pile socket holes | |
| CN115949099B (en) | Offshore wind turbine foundation scouring disaster grouting protection model test device and test method | |
| CN104047285A (en) | Technical device and construction method for improving bearing capacity of CFG pressure pouring piles | |
| CN208486388U (en) | Waterproof precast floor slab | |
| CN208251141U (en) | A kind of cold box foundation structure using expanded-sand concrete prefabricated board | |
| CN206220114U (en) | A kind of eight High-Rise Pile Cap Foundations | |
| CN206233232U (en) | A kind of upper and lower part expansion type soil cement is combined pile tube | |
| CN105155573A (en) | Offshore wind turbine barrel-in-barrel foundation | |
| CN203782734U (en) | Precast concrete bearing platform with reserved foundation ring hole and pile socket ring hole | |
| CN108118693A (en) | The constructing device of cast-in-place concrete core cement soil stirring pile | |
| CN106638694A (en) | On-site molded lining inspection well structure and repair method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181221 |