CN107217691A - For city underground leak stopping and the method for strengthening construction - Google Patents
For city underground leak stopping and the method for strengthening construction Download PDFInfo
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- CN107217691A CN107217691A CN201710622054.5A CN201710622054A CN107217691A CN 107217691 A CN107217691 A CN 107217691A CN 201710622054 A CN201710622054 A CN 201710622054A CN 107217691 A CN107217691 A CN 107217691A
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000010276 construction Methods 0.000 title claims abstract description 45
- 238000005728 strengthening Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004593 Epoxy Substances 0.000 claims abstract description 24
- 230000010412 perfusion Effects 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 7
- 230000001680 brushing effect Effects 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 230000035699 permeability Effects 0.000 claims abstract description 4
- 238000005553 drilling Methods 0.000 claims description 26
- 230000000903 blocking effect Effects 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 18
- 239000004568 cement Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 13
- 210000005056 cell body Anatomy 0.000 claims description 12
- 239000011440 grout Substances 0.000 claims description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 11
- 210000002445 nipple Anatomy 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 10
- 239000000565 sealant Substances 0.000 claims description 10
- 230000008595 infiltration Effects 0.000 claims description 9
- 238000001764 infiltration Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000004078 waterproofing Methods 0.000 abstract description 3
- 239000004927 clay Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000009746 freeze damage Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000004588 polyurethane sealant Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 238000007569 slipcasting Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
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- 239000007921 spray Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a kind of method for city underground leak stopping and strengthening construction, it is related to the technical field that seepage is repaired in construction, the method comprising the steps of one, the epoxy grouting material for leak stopping is irrigated the concrete structure of city underground using boring method；Step 2, after the completion of perfusion, as gap≤0.01mm of seepage place；To gap brushing cementitious capillary waterproofing material, the crystalline solid for making permeability strong, which is filled up, oozes the tiny penetrating passage in damp position.Epoxy grouting material for leak stopping is irrigated concrete structure by boring method, reinforcing while leak stopping recovers the compactness and concrete structure globality intensity of lining concrete.Solve in underground engineering present in prior art, tunnel and subway, concrete structure leakiness, the technical problem of voids and pits percolating water under use environment are disturbed in anti-vibration so that underground engineering operation is safer.
Description
Technical field
The present invention relates to seepage recovery technique field in construction, more particularly, to one kind be used for city underground leak stopping and
The method of strengthening construction.
Background technology
Either at home or external, all there is different degrees of disease in most of underground engineerings such as tunnel, subway
Evil, underground engineering disease mainly has water damage, freeze injury, lining cracking and the lining cutting to corrode, and most common of which disease form is water
Evil, is embodied in underground engineering and different degrees of Seepage occurs, so-called " ten tunnels nine leak " is just reflected in underground engineering
Tunnel, subway water damage it is frequent.Underground engineering occurs after seepage, and the safe operation of tunnel, subway is influenceed to increase, or even crisis
And tunnel structure safety.
Subway is the operation that subway train is adapted to using non-fragment orbit solid concrete roabed technology, and subway group is logical by underground
During road, there are vibrations to disturb to solid concrete roabed, underpass.Subway group can equally give car when by interval subway station
The concrete structure stood brings very big vibrations disturbance, and subway station top if having vapour on municipal road surface, road surface
Car by when can also there are certain vibrations to disturb to the concrete structure of subway station, subway station is in above and below the ground
In the operating environment of dual vibrations disturbance.After high ferro, railway, highway, town road operation, underground pedestrian passageway (garage's culvert,
People's row culvert), subterranean commercial area equally can by train and automobile by when the vibrations that produce disturb.
The concrete defect of structural plane is mainly：Being vibrated when pouring, leakiness, the heat of hydration be too high, concrete moisture content is high
The factors such as isolation are caused, cause not lose and voids and pits, when extraneous hydraulic pressure is more than agent on crack resistance of concrete consolidation pressure herein, are occurred as soon as
Percolating water phenomenon, is mainly shown as a seepage and face seepage.In addition, the tube head of equipment installed part, steel bar end, lacing hole etc. are pre-buried
Waterproof sealing processing is bad at part, seepage also often occurs.
It is in the prior art, typically all preferential to use inorganic grouting material when carrying out underpass, subway station leak stopping,
Such as superfine cement grouting and cement-silicate grouting；Sometimes organic grouting material is also used, such as acrylates, third coagulate, and
Soluble polyurethane and oil soluble polyurethane grouting material carry out leak stopping；Some are then with reference to doing using concrete surface fluting draining
Method.
But, with the underpass of blocking method of the prior art processing, subway station, occurred in that again after operation
Seepage, is then absorbed in the result for continuing leak stopping, continuing seepage；So can not ensure in the prior art vibrations disturbance operation,
The use environment Treatment Measures to Leakage of operation.
The content of the invention
It is an object of the invention to provide the method for city underground blocking construction, solve present in prior art
In underground engineering, tunnel and subway, concrete structure leakiness, voids and pits percolating water under anti-vibration disturbance use environment
Technical problem.
A kind of method for city underground blocking construction that the present invention is provided, comprises the following steps：
Step one, the epoxy grouting material for leak stopping is irrigated the concrete structure of city underground using boring method；
Step 2, after the completion of perfusion, as gap≤0.01mm of seepage place；To gap brushing cement-base infiltration crystallization type
Waterproof material, the crystalline solid for making permeability strong, which is filled up, oozes the tiny penetrating passage in damp position.
Further, step one comprises the following steps：
Step 100, blossom type pin hole grouting method is used for pitted skin infiltration, irrigates the epoxy grouting material for leak stopping.
Further, blossom type pin hole includes multiple pin holes, and the diameter range of each pin hole is 28mm~30mm；It is adjacent
The spacing range of two pin holes is 49mm~51mm；Along the vertical direction of two pin hole center lines, another pin hole is set；Pin hole is successively
Set；The bottom of pin hole is 10mm~11mm with the distance range of lining cutting bottom.
Further, step one comprises the following steps：
Step 200, city underground concrete structure is irrigated using drilling sidetracking method；When percolating water is larger, priming petock
Mud class grouting material carries out back fill course to concrete structure behind sealing to the water cavity of concrete structure behind, for
Lining cutting supplement perfusion epoxy grouting material.
Further, step 200 is further comprising the steps of：
Step 201, cleaning：Lining cutting surface is cleared up, the situation in crack is checked, analyzes, it is determined that position, spacing and the depth of drilling
Degree；
Step 202, grooving：Counterincision seam surface grooving, forms cell body, and carry out in the cell body temporary plugging；
Step 203, drilling：Intersected using boring bar tool along crack both sides and drilled, the drilling includes the first drilling
With the second drilling；
Step 204, bury mouth：Grout nipple is installed in the first drilling, tightened, dead-end fracture surface；
Step 205, grouting：The repeated multiple times perfusion epoxy grouting material into grout nipple；
Step 206, tear mouth open：Grouting is finished, and is confirmed that grouting material is fully cured, is removed exposed grout nipple；
Step 207, slot processing：The temporary plugging thing in the cell body is removed, keeps drying after cleaning totally, clogs close
Sealing.
Further, epoxy grouting material is set to the water-fast moisture resistance wet type modified epoxy grouting material of low-viscosity.
A kind of method for city underground strengthening construction that the present invention is provided, including for city underground blocking construction
Method；
Also include Step 3: by for strengthen the cement base class of the impervious effect of concrete structure rigidly impervious mortar spraying or
Scratch to concrete structural surface.
Further, rigidly impervious mortar material includes polymer mortar, cement-based penetrant agent and cement base to cement base class
Shrinking-free grouting material.
Further, a kind of method for city underground strengthening construction that the present invention is provided also includes
Step 4: after the completion of for the first-class built-in fitting root leak stopping of pipe fitting, reinforcing bar in underground engineering, then slot and fill out embedding sealing
Glue；
The sealing steel plate deformed upon for horizontal direction is fixedly connected with above fluid sealant.
Further, a kind of method for city underground strengthening construction for providing of the present invention is also including Step 5: by ground
The concrete structure of the serious position of lower engineering leak drills through pressure release draining, new draining blind pipe is formed, by water ejectment to underground
In the sump of drainage.
A kind of repetition friendship for being used for the method for city underground leak stopping and strengthening construction, passing through method and step that the present invention is provided
Fork is used, and the epoxy grouting material for leak stopping is irrigated concrete structure by boring method, and reinforcing while leak stopping recovers
The compactness and concrete structure globality intensity of lining concrete.After the completion of grouting, then seepage place≤0.01mm's
Gap；To gap brushing cementitious capillary waterproofing material, the crystalline solid for making permeability strong fills up that to ooze damp position tiny
Penetrating passage.Solve in underground engineering present in prior art, tunnel and subway, disturbed in anti-vibration mixed under use environment
The technical problem of Xtah Crude Clay structure leakiness, voids and pits percolating water so that underground engineering operation is safer.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the method provided in an embodiment of the present invention for being used for city underground leak stopping and strengthening construction；
Fig. 2 shows for the structure provided in an embodiment of the present invention for city underground leak stopping and the grooving of the method for strengthening construction
It is intended to；
The structural representation for adding temporary plugging that Fig. 3 provides for Fig. 2；
The structural representation for adding sealing material that Fig. 4 provides for Fig. 2；
Fig. 5 is the blossom type pin hole provided in an embodiment of the present invention for city underground leak stopping and the method for strengthening construction
Plan；
Fig. 6 for Fig. 5 blossom type pin holes provided profile.
Icon：11- cell bodies；12- first drills；13- second drills；14- grout nipples；15- special type clay；16- fluid sealants；
17- blossom type pin holes.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The flow chart for the method for being used for city underground leak stopping and strengthening construction that Fig. 1 provides for the present embodiment；Fig. 2 is this reality
The structural representation of the grooving of the method for being used for city underground leak stopping and strengthening construction of example offer is provided；Fig. 3 is adding that Fig. 2 is provided
Plus the structural representation of temporary plugging；The structural representation for adding sealing material that Fig. 4 provides for Fig. 2；Fig. 5 provides for the present embodiment
The method for being used for city underground leak stopping and strengthening construction blossom type pin hole plan；The blossom type pin that Fig. 6 provides for Fig. 5
The profile in hole.As shown in figs. 1 to 6, a kind of method for city underground blocking construction that the present embodiment is provided, including it is following
Step：Step one, the epoxy grouting material for leak stopping is irrigated the concrete structure of city underground using boring method；Step 2,
After the completion of perfusion, as gap≤0.01mm of seepage place；To gap brushing cementitious capillary waterproofing material, infiltration is allowed
The strong crystalline solid of property, which is filled up, oozes the tiny penetrating passage in damp position.
Wherein, epoxy grouting material is set to the water-fast moisture resistance wet type modified epoxy grouting material of low-viscosity；It is moisture resistance that low-viscosity is water-fast
Wet type modified epoxy grouting material has viscosity low, with certain elongation percentage, can reach 5%~8%, and with necessarily tough
Property, can directly it irrigate in the presence of water.
The method for city underground blocking construction that the present embodiment is provided, passes through step one and the repeated overlapping of step 2
Use, the epoxy grouting material for leak stopping is irrigated concrete structure by boring method, reinforcing while leak stopping recovers lining
The compactness and concrete structure globality intensity of building concrete；Solve underground engineering, tunnel and ground present in prior art
In iron, concrete structure leakiness, the technical problem of voids and pits percolating water under use environment are disturbed in anti-vibration so that ground
Lower engineering operation is safer.
On the basis of above-described embodiment, further, the side for city underground blocking construction that the present embodiment is provided
Method, step one comprises the following steps：Step 100, blossom type pin hole grouting method is used for pitted skin infiltration, irrigated for leak stopping
Epoxy grouting material.
In addition, blossom type pin hole 17 includes multiple pin holes, and the diameter range of each pin hole is 28mm~30mm；Adjacent two
The spacing range of individual pin hole is 49mm~51mm；Along the vertical direction of two pin hole center lines, another pin hole is set；Pin hole is set successively
Put；The bottom of pin hole is 10mm~11mm with the distance range of lining cutting bottom.
When being seeped water for pitted skin, first choice determines the leakiness area of infiltration part, so that in leakiness area interior diameter scope
Interior expansion treatment region, the diameter for the treatment of region is more than the diameter in leakiness area, so as to drill through blossom type pin hole 17 in treatment region.
Wherein, when drilling through blossom type pin hole 17, it is first determined first row pin hole, the spacing range per two adjacent pin holes
For 49mm~51mm, it is preferred that the spacing per two adjacent pin holes is 50mm；After the pin hole of first row has been drilled through, it is determined that
The pin hole spacing of second row pin hole, second row pin hole and first row is 50mm, in addition, the pin hole of second row is respectively provided with and first row
Near the center line of two neighboring pin hole, the pin hole of the 3rd row and the pin hole spacing of second row are 50mm, the pin hole of same 3rd row
Near the center line for setting two pin holes adjacent with second row, it is repeated in drilling through, until completing whole pin holes, forms blossom type
Pin hole 17；And the water-fast moisture resistance wet type modified epoxy grouting material of low-viscosity is irrigated in each pin hole, each pin hole interaction is complete
Into after grouting, each pin hole is blocked.
The diameter range of each pin hole is 28mm~30mm；It is preferred that a diameter of 30mm of pin hole.
The bottom of pin hole is 10mm~11mm with the distance range of lining cutting bottom, it is preferred that the bottom of pin hole and lining cutting bottom
The distance in portion is 10mm；That is the depth of pin hole is set to lining thickness and subtracts 10mm.
The method for city underground blocking construction that the present embodiment is provided, by determining leakiness in pitted skin infiltration part
Area, so that it is determined that treatment region, and in treatment region blossom type pin hole 17 has been drilled through, so that perfusion is low glutinous in blossom type pin hole 17
Water-fast moisture resistance wet type modified epoxy grouting material is spent, due to using blossom type pin hole 17, so that each pin hole can interact, can
To solve the whole leak stopping in pitted skin leakiness area infiltration gap in underground engineering present in prior art, tunnel and subway,
Concrete structure leakiness, the technical problem of voids and pits percolating water under use environment are disturbed in anti-vibration so that honeycomb fiber crops
All sealings inside face, the subway circulation safety more ensured.
In addition, the method and step one for city underground blocking construction that the present embodiment is provided comprises the following steps：Step
200, city underground concrete structure is irrigated using drilling sidetracking method；When percolating water is larger, cement injection class grouting material
To concrete structure behind sealing, back fill course is carried out to the water cavity of concrete structure behind, supplements and irrigates for lining cutting
Epoxy grouting material.
In addition, the method and step 200 for city underground blocking construction that the present embodiment is provided is further comprising the steps of：Step
Rapid 201, clear up：Lining cutting surface is cleared up, the situation in crack is checked, analyzes, it is determined that position, spacing and the depth of drilling；Step
202nd, grooving：Counterincision seam surface grooving, forms cell body 11, and the progress temporary plugging in cell body 11；Step 203, drilling：Use
Boring bar tool intersects along crack both sides to be drilled, and the drilling includes the first drilling 12 and the second drilling 13；Step 204, bury
Mouth：Grout nipple 14 is installed in the first drilling 12, tightened, dead-end fracture surface；Step 205, grouting：Into grout nipple 14 repeatedly
Repeatedly irrigate epoxy grouting material；Step 206, tear mouth open：Grouting is finished, and is confirmed that grouting material is fully cured, is removed exposed grout nipple
14；Step 207, slot processing：The temporary plugging thing in the cell body 11 is removed, keeps drying clean, fill plug seal after cleaning
Glue 16.
Wherein, fluid sealant 16 can be with a variety of, for example, in polyurethane sealant, rubber-like fluid sealant or polysulfide sealant
One kind.
Step 201 carries out preliminary removing surface using wire brush, recycles air compressor machine to pass through high wind after preliminary cleaning
Surface is blown clean；The cross sectional shape of the cell body 11 of step 202 is " V " type；The width of cell body 11 is 20mm, and depth is 20mm；
The material that step 202 carries out temporary plugging is the extraordinary material of clay 15, when being in the milk, close due to the extraordinary material of clay 15
Envelope is acted on, and grouting material can be caused persistently to infiltrate into crack depths, the effect of grouting is more ensure that；Step 203 is along crack
Both sides intersect punching, the depth of the first drilling 12 and the second drilling 13 is about at 1/3~1/2；Step 205 utilizes high pressure
Grouter irrigates grouting material into grout nipple 14, is kept for the time of pressure be generally 10~30 seconds, then by repeatedly filling repeatedly
Slurry, with the pressure change for reaching grouting it is shallower after, stop grouting.
Pass through controlled grouting so that grouting plumpness is good, and then repair drilling to the destruction of the waterproof layer of lining cutting and original
The waterproof layer effect of destroyed lining cutting, the material after grouting solidification is equivalent to the coagulation for the waterproof layer of lining cutting being cast in grouting
In native, inside grout blanket of nuzzling, the problem of channeling water just is not present, the problem of just having repaired the waterproof layer breakage of lining cutting.
The method for city underground blocking construction that this example is provided, it is oblique using pin hole by the method with micro- damage
Side boring method perfusion grouting material.By grooving sealing function, and by intersecting slip casting so that the depths in the crack of slurries injection,
The lining concrete allowed at crack recovers to form an entirety, can prevent because vibrations disturbance deformation breakage reappears seepage again
And cracking, and recover the compactness and structural integrity intensity of lining concrete.
A kind of method for city underground strengthening construction that the present embodiment is provided, including for city underground blocking construction
Method；Also include Step 3: by for strengthen the cement base class of the impervious effect of concrete structure rigidly impervious mortar spraying or
Scratch to concrete structural surface.
Wherein, rigidly impervious mortar material includes polymer mortar, cement-based penetrant agent and cement base without receipts to cement base class
Contracting grouting material.
The method for city underground strengthening construction that the present embodiment is provided, by the way that rigidly impervious mortar sprays by cement base class
Apply or scratch to concrete structural surface, the impervious effect of entirety of liner structure can be strengthened, set equivalent in lining cutting outer surface
One layer of barrier film is put, waterproof, the double action reinforced is served.
On the basis of above-described embodiment, further, the side for city underground strengthening construction that the present embodiment is provided
Method also includes Step 4: after the completion of for the first-class built-in fitting root leak stopping of pipe fitting, reinforcing bar in underground engineering, then slots and fill out embedding sealing
Glue 16；The top of fluid sealant 16 is fixedly connected with the sealing steel plate deformed upon for horizontal direction.
Because the first-class built-in fitting root of pipe fitting, reinforcing bar and concrete junction have gap presence in underground engineering, in addition,
Also it is easy to due to extraneous cracking produce gap herein, therefore after the completion of pipe fitting, the first-class built-in fitting root leak stopping of reinforcing bar, then
A circular trough is opened up along root position, by filling out embedding fluid sealant 16 in circular trough, so as to seals completely pipe, steel bar end
Deng built-in fitting root, then the sealing steel plate deformed upon for horizontal direction is fixedly connected with the top of fluid sealant 16 so that pre-
Embedded part root is more consolidated, it is therefore prevented that deform upon to produce crack herein so that steam can enter lined internal.
In addition, the method for city underground strengthening construction that the present embodiment is provided is also including Step 5: by underground engineering
The concrete structure of the serious position of leak drills through pressure release draining, new draining blind pipe is formed, by water ejectment to mole drain
Sump in.
When the leak especially severe in underground engineering, the concrete structure of the serious position of leak can be drilled through first
Pressure release draining, first by the water ejectment of flowing into the sump of mole drain, then by being used for city in above-described embodiment
The method of subway leak stopping and strengthening construction is completed.
The method for city underground strengthening construction that the present embodiment is provided passes through the lining cutting surface spraying in grouting completion
Cement base class rigidly impervious mortar, one layer of reinforced membrane of formation, and circular trough is opened up in pipe fitting, the first-class built-in fitting root of reinforcing bar, and
Embedding fluid sealant 16 is filled out in circular trough；, can also be by by the concrete knot of the serious position of leak in addition, when percolating water is larger
Structure drills through pressure release draining by the water ejectment of flowing into the sump of mole drain, then by being used for city in above-described embodiment
The method of city's subway leak stopping and strengthening construction is completed.Solve in underground engineering present in prior art, tunnel and subway, anti-
Concrete structure leakiness, the technical problem of voids and pits percolating water under vibrations disturbance use environment so that underground engineering is transported
Row is safer.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of method for city underground blocking construction, it is characterised in that comprise the following steps：
Step one, the epoxy grouting material for leak stopping is irrigated the concrete structure of city underground using boring method；
Step 2, after the completion of perfusion, as gap≤0.01mm of seepage place；To gap brushing cement-base infiltration crystallization type water-proof
Material, the crystalline solid for making permeability strong, which is filled up, oozes the tiny penetrating passage in damp position.
2. the method according to claim 1 for city underground blocking construction, it is characterised in that step one includes following
Step：
Step 100, blossom type pin hole (17) grouting method is used for pitted skin infiltration, irrigates the epoxy grouting material for leak stopping.
3. the method according to claim 2 for city underground blocking construction, it is characterised in that the blossom type pin hole
(17) multiple pin holes are included, and the diameter range of each pin hole is 28mm~30mm；The spacing range of two neighboring pin hole
For 49mm~51mm；Along the vertical direction of two pin hole center lines, another pin hole is set；The pin hole is set gradually；The pin hole
The distance range of bottom and lining cutting bottom is 10mm~11mm.
4. the method according to claim 1 for city underground blocking construction, it is characterised in that step one includes following
Step：
Step 200, city underground concrete structure is irrigated using drilling sidetracking method；When percolating water is larger, cement injection class
Grouting material carries out back fill course, for lining cutting to concrete structure behind sealing to the water cavity of concrete structure behind
Supplement perfusion epoxy grouting material.
5. the method according to claim 4 for city underground blocking construction, it is characterised in that step 200 also includes
Following steps：
Step 201, cleaning：Lining cutting surface is cleared up, the situation in crack is checked, analyzes, it is determined that position, spacing and the depth of drilling；
Step 202, grooving：Counterincision seam surface grooving, forms cell body (11), and the progress temporary plugging in the cell body (11)；
Step 203, drilling：Intersected using boring bar tool along crack both sides and drilled, the drilling includes the first drilling (12)
With the second drilling (13)；
Step 204, bury mouth：Grout nipple (14) is installed in the first drilling (12), tightened, dead-end fracture surface；
Step 205, grouting：The repeated multiple times perfusion epoxy grouting material into grout nipple (14)；
Step 206, tear mouth open：Grouting is finished, and is confirmed that grouting material is fully cured, is removed exposed grout nipple (14)；
Step 207, slot processing：The temporary plugging thing in the cell body is removed, keeps drying clean, fill plug seal glue after cleaning
(16)。
6. the method for city underground blocking construction according to claim any one of 1-5, it is characterised in that the ring
Oxygen grouting material is set to the water-fast moisture resistance wet type modified epoxy grouting material of low-viscosity.
7. a kind of method for city underground strengthening construction, it is characterised in that including as described in claim any one of 1-6
Method for city underground blocking construction；
Also include Step 3: by for strengthening the cement base class of the impervious effect of concrete structure rigidly impervious mortar spraying or blade coating
To concrete structural surface.
8. the method according to claim 7 for city underground strengthening construction, it is characterised in that the cement base class is firm
Property impervious mortar material include polymer mortar, cement-based penetrant agent and cement base shrinking-free grouting material.
9. the method according to claim 7 for city underground strengthening construction, it is characterised in that also include
Step 4: after the completion of for the first-class built-in fitting root leak stopping of pipe fitting, reinforcing bar in underground engineering, then slot and fill out embedding fluid sealant
(16)；
The sealing steel plate deformed upon for horizontal direction is fixedly connected with above the fluid sealant (16).
10. the method according to claim 7 for city underground strengthening construction, it is characterised in that also including Step 5:
The concrete structure of the serious position of underground engineering leak is drilled through into pressure release draining, new draining blind pipe is formed, water ejectment is arrived
In the sump of mole drain.
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| CN201710622054.5A CN107217691A (en) | 2017-07-27 | 2017-07-27 | For city underground leak stopping and the method for strengthening construction |
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| CN201710622054.5A CN107217691A (en) | 2017-07-27 | 2017-07-27 | For city underground leak stopping and the method for strengthening construction |
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| CN111485581B (en) * | 2020-04-22 | 2021-06-11 | 中交第三航务工程局有限公司 | Method for treating water leakage of underwater cable-stayed suspension tunnel |
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| CN111502325A (en) * | 2020-04-29 | 2020-08-07 | 湖南先锋防水科技有限公司 | Repairing process for leakage of coating heat-insulation outer wall |
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| CN112921842A (en) * | 2021-01-27 | 2021-06-08 | 天津市管道工程集团有限公司 | Water-stopping and leaking-stopping construction method for concrete culvert pipe |
| CN113719304A (en) * | 2021-08-19 | 2021-11-30 | 苏交科集团股份有限公司 | Method for treating water leakage disease of tunnel by using rigid sleeve valve pipe |
| CN113719304B (en) * | 2021-08-19 | 2024-06-21 | 苏交科集团股份有限公司 | Method for treating leakage water disease of tunnel by using rigid sleeve valve pipe |
| CN113653517A (en) * | 2021-08-30 | 2021-11-16 | 南京康泰建筑灌浆科技有限公司 | Anti-seismic disturbance-resistant underground tunnel leakage blocking method |
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Application publication date: 20170929 |