CN104018526A - EPR deformation joint repair water stopping structure and construction method thereof - Google Patents

EPR deformation joint repair water stopping structure and construction method thereof Download PDF

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Publication number
CN104018526A
CN104018526A CN201410226014.5A CN201410226014A CN104018526A CN 104018526 A CN104018526 A CN 104018526A CN 201410226014 A CN201410226014 A CN 201410226014A CN 104018526 A CN104018526 A CN 104018526A
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China
Prior art keywords
deformation joint
epoxy resin
epr
layer
water
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CN201410226014.5A
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CN104018526B (en
Inventor
毛晨阳
朱宏伟
元文新
汪明珠
吴许杰
夏航
余雯
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HANGZHOU HONGXU CONSTRUCTION Co.,Ltd.
NINGBO CITY HIGH-TECH ZONE BAIMAO POLYMER MATERIALS Co.,Ltd.
Ping An Construction Group Co.,Ltd.
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KINGBIRD CONSTRUCTION GROUP
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Abstract

The invention discloses an EPR deformation joint repair water stopping structure and a construction method thereof. A deformation joint is formed between two concrete structural layers. The water stopping structure comprises a water stopping barrier layer which is made of high-early-strength cement, an epoxy resin seepage-proof layer which is arranged between the two concrete structural layers, a sealing layer which is made of high-early-strength cement, and an epoxy resin filling layer which is poured into the deformation joint. The water stopping barrier layer is arranged on the rear wall of the deformation joint, and the sealing layer is arranged on the front wall of the deformation joint. The EPR deformation joint repair water stopping structure is simple in structure, convenient to construct, and lasting and stable in seepage-proof effect.

Description

EPR deformation joint is repaired water-stopping structure and construction method thereof
Technical field
The invention belongs to road construction field, especially relate to a kind of EPR deformation joint and repair water-stopping structure and construction method thereof.
Background technology
Along with the further propelling of urbanization process, Development of Underground Engineering space is more and more extensive, and the thing followed is underground project waterproof problem, has a strong impact on workmanship, and deformation joint is the difficult point of underground construction antiseep especially.Because deformation joint is in continuous motion change, be subject to again waterproofing design theory, waterproofing materials, the impact of construction technology, deformation joint is easy to occur percolating water phenomenon, deformation joint leak stopping is always the problem of having a headache most.
Commonplace in practice of construction, general unit in charge of construction, processing when percolating water, adopts water glass, cement to tamp, also useful leak stopping king, useful polymer cement mortar etc. method also.But said method all belongs to rigidity waterproofing, because tensile strength is low, be not suitable with the needs of malformation, still there is infiltration.Though polyurethane grouting treatment belongs to elastomeric material, viscosity is larger, and concrete castability is restricted, and intensity is lower, does over again many after construction, easily again occurs over time percolating water.
A kind of effectively underground construction deformation joint of research and development is repaired water-stop technology and will be with a wide range of applications.
Summary of the invention
The present invention, in order to overcome the deficiencies in the prior art, provides the EPR deformation joint of a kind of reliable in quality and easy construction to repair water-stopping structure and construction method thereof.
To achieve these goals, the present invention is by the following technical solutions: a kind of EPR deformation joint is repaired water-stopping structure, described deformation joint is formed between two concrete structure layers, and described water-stopping structure comprises that the sealing being made up of high-early (strength) cement keeps off layer, is located at epoxy resin impervious barrier, the sealing layer being made up of high-early (strength) cement between two described concrete structure layers and is poured into the epoxy resin filling layer in described deformation joint; Described sealing gear layer is located at described deformation joint rear wall, and sealing layer is located at described deformation joint antetheca.
Further, described sealing layer is provided with grouting port and exhaust opening.
In described deformation joint, be filled with flax silk layer.
The present invention also provides a kind of EPR deformation joint to repair the construction method of water-stopping structure, comprises the steps:
1) on the deformation joint leaking, boring until drill, to injecting high-early (strength) cement slurry after the wall of deformation joint until block and leak as standard, forms sealing gear layer;
2) the concrete compaction rate of inspection deformation joint both sides, finds the seepage water spot in the layer of concrete of deformation joint both sides, uses epoxy resin reinforcing to form impervious barrier;
3) after deformation joint fluting takes out polyphenyl plate, fill flax silk simultaneously, then adopt high-early (strength) cement to form sealing layer in the front side of deformation joint, and on sealing layer, leave grouting port and the gas outlet for grouting;
4) in the middle of deformation joint, inject epoxide resin material to form epoxy resin filling layer by grouting port, after this epoxide resin material solidifies, form described EPR deformation joint and repair water-stopping structure.
As preferably, described step 2) in the epoxide resin material of epoxy resin filling layer formed by A, two components of B, component A comprises 100 parts of epoxy resin, 10 parts of reactive diluents, 29 parts of flexibilizer, 1 part of coupling agent; B component comprises 22 parts, curing compound, 6.5 parts, toughness curing compound, 2 parts of blowing agents, 0.5 part of defoamer, 4 parts of rheological agents; Described umber is number meter by weight, and the weight ratio of component A and B component is 4:1; The preparation method of this epoxide resin material comprises the steps:
1) each composition of component A is proportionally configured, place at normal temperatures mix and blend 5-8min in same container, to evenly, divide bucket to pack; Each composition of B component is proportionally configured, place at normal temperatures mix and blend 5-8min in same container, to evenly, divide bucket to pack;
2) each composition of filler is proportionally configured to the independent packaging respectively of each composition;
3) the component A being adjusted to, B component are placed in same container at normal temperatures according to the ratio of 4:1, mix and blend 2-3min, to evenly, makes the neo-epoxy resin material of described perfusion use.
As preferably, described reactive diluent is butyl glycidyl ether, and flexibilizer is polypropylene glycol diglycidyl ether, silane coupler is γ-glycidol ether propyl trimethoxy silicane, curing compound is N-aminoethyl piperazine, and toughness curing compound is polyetheramine, and rheological agent is aerosil.
As preferably, described epoxy resin is bisphenol E-type epoxy resin.
The present invention is in the time that the original deformation joint sealing of underground structure lost efficacy, adopt one to there is flexile epoxy resin and replace original water-stopping structure as inserts in the middle of deformation joint, its pliability feature meets the Deformation Demands of deformation joint, and the physical property of its solidfied material meets water-stopping seepage-proof demand simultaneously.Filling before this epoxy resin, starching to form one deck sealing gear layer by inject high-early (strength) cement after the wall of deformation joint, utilizing the plasticity of cement, to improve the soil layer property after wall, thereby reaching the object of reinforcing soil layer and set up again interim sealing barricade; Second step checks the concrete compaction rate of deformation joint both sides, finds deformation joint both sides concrete seepage water spot injection ring epoxy resins to form impervious barrier, utilizes the high osmosis of epoxy resin can carry out anti-seepage reinforcing; The 3rd step need be taken out polyphenyl plate at deformation joint fluting and be filled flax silk simultaneously, then adopts microdilatancy high-early (strength) cement to seal, and grouting port and gas outlet are installed; Last have flexile epoxy resin toward middle injection of deformation joint, and after its epoxide resin material solidifies, forming is exactly that complete EPR deformation joint is repaired water-stopping structure.
The invention is characterized in: (1) this water-stop technology is a kind of repairing technique adopting in the time that original deformation joint sealing lost efficacy; (2) the neo-epoxy resin of institute's cementation of fissures sealing is made up of A, two components of B, can give birth to curing reaction by hybrid concurrency at normal temperatures, and reaction speed can be controlled within a certain period of time; (3) this technology must be invaded to prevent water by injected water mud before implementing after distortion slotted wall, sets up first waterproof barrier; (4) this technology also must be used the high permeable epoxy resin of hydrophily to carry out anti-seepage reinforcing at the concrete of deformation joint both sides before implementing; (5) need take out polyphenyl plate at deformation joint fluting and fill flax silk simultaneously, then with the sealing of microdilatancy high-early (strength) cement, and grouting port and gas outlet are installed.
The present invention also provides a kind of neo-epoxy resin material to be used for filling deformation joint, and its performance meets following table 1:
Table 1:
The feature of pliability neo-epoxy resin and performance requirement
The high-early (strength) cement adopting in the present invention can be purchased on market, and the performance requirement that it need to be satisfied is with reference to following table 2.
Table 2:
High-early (strength) cement index
Fineness <10% 0.080mm square hole screen tails over
Time of setting >5 min
? <40 min
Compressive strength/MPa 4h 3.6
? 8h 12
? 1d 20
Rupture strength/MPa 4h 1.4
? 8h 2.2
? 1d 3.5
In the present invention, can on market, purchase for the high permeable epoxy resin material at concrete seepage water spot place, deformation joint both sides, be prior art, and its performance meets table 3 and requires.
Table 3:
The feature of high permeable epoxy resin and performance requirement
In sum, the present invention has the following advantages: this water-stopping structure is simple, easy construction, and leak preventing effect is lasting, stable.(need to supplement?)
Brief description of the drawings
Fig. 1 is water-stopping structure schematic diagram of the present invention.
Fig. 2 is the partial schematic diagram of water-stopping structure of the present invention.
Detailed description of the invention
In order to make those skilled in the art person better understand the present invention program, below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, should belong to the scope of protection of the invention.
Embodiment 1:
As shown in Figure 1, 2, a kind of EPR deformation joint is repaired water-stopping structure, described deformation joint 11 is formed between two concrete structure layers 12, and described water-stopping structure comprises that the sealing being made up of high-early (strength) cement keeps off layer 21, is located at epoxy resin impervious barrier 22, the sealing layer 24 being made up of high-early (strength) cement between two described concrete structure layers 12 and is poured into the epoxy resin filling layer 25 in described deformation joint; Described sealing gear layer 21 is located at described deformation joint 11 rear walls, sealing layer 24 is located at described deformation joint 11 antethecas, is filled with flax silk layer in deformation joint, wears and penetrated a Grouting Pipe 241 on described sealing layer 24, Grouting Pipe be provided with grouting port and, on sealing layer, be also provided with the exhaust opening for getting rid of gas.
Embodiment 2:
Certain community underground automobile garage deformation joint leaked and is seriously badly in need of repairing because former sealing loses efficacy:
Designing requirement: adopt EPR deformation joint to repair water-stop technology and repair deformation joint, meet the normal use of underground automobile garage deformation joint.
Concrete implementation step:
(1) on the deformation joint leaking, boring until drill, is installed grouting port, injects high-early (strength) cement starch to form sealing gear layer to the rear wall of deformation joint, and injection rate is greater than every meter of 100kg, leaks as standard until block, and sets up first waterproof barrier;
(2) find the concrete seepage water spot in deformation joint both sides, repair with the epoxy resin of the high infiltration of hydrophilic, to form one deck impervious barrier, be able to sealing reinforcement, this epoxy resin is the current material with the high infiltration of hydrophilic;
(3) take out polyphenyl plate at deformation joint fluting and fill flax silk simultaneously, then with the sealing of microdilatancy high-early (strength) cement, form sealing layer, before injecting high-early (strength) cement, a Grouting Pipe is first installed, this Grouting Pipe one end is stretched in deformation joint, the other end passes sealing layer 24, and reserves a gas outlet on sealing layer.
Before construction, first configure described step 2) in the epoxide resin material of epoxy resin filling layer, it is made up of A, two components of B, component A comprises 100 parts of epoxy resin, 10 parts of reactive diluents, 29 parts of flexibilizer, 1 part of coupling agent; B component comprises 22 parts, curing compound, 6.5 parts, toughness curing compound, 2 parts of blowing agents, 0.5 part of defoamer, 4 parts of rheological agents; Described umber is number meter by weight, and the weight ratio of component A and B component is 4:1; Wherein said reactive diluent is butyl glycidyl ether, flexibilizer is polypropylene glycol diglycidyl ether, silane coupler is γ-glycidol ether propyl trimethoxy silicane, curing compound is N-aminoethyl piperazine, toughness curing compound is polyetheramine, rheological agent is aerosil, and described epoxy resin is bisphenol E-type epoxy resin.
Preparation method is as follows:
1) each composition of component A is proportionally configured, place at normal temperatures mix and blend 5-8min in same container, to evenly, divide bucket to pack; Each composition of B component is proportionally configured, place at normal temperatures mix and blend 5-8min in same container, to evenly, divide bucket to pack;
2) each composition of filler is proportionally configured to the independent packaging respectively of each composition;
3) the component A being adjusted to, B component are placed in same container at normal temperatures according to the ratio of 4:1, mix and blend 2-3min, to evenly, makes the neo-epoxy resin material of described perfusion use.
Engineering construction: will prepare neo-epoxy resin material, and adopt low-pressure grouting machine to inject in deformation joint by Grouting Pipe, until fill.The feature of this neo-epoxy resin material and performance should meet the regulation of table 4.
Table 4:
The feature of pliability neo-epoxy resin and performance requirement
Health and time-based maintenance, reach designing requirement through 72 hours epoxy resin intensity, and EPR deformation joint repairing water-stop technology completes like this.But due to sedimentation, concrete expanding with heat and contract with cold, deformation joint in changing, produces minute crack all the time in the middle of causing, finally cause having drainage, therefore wants time-based maintenance.
Embodiment 3:
There is the repairing of Seepage urgent need in metro station deformation joint
Designing requirement: adopt EPR deformation joint to repair water-stop technology and repair deformation joint, meet deformation joint sealing and Deformation Demands.
Concrete enforcement:
(1) on the deformation joint leaking, boring until drill, is installed grouting port and is also injected high-early (strength) cement slurry, and injection rate is greater than every meter of 100kg, leaks as standard to block, and sets up first waterproof barrier.
(2) whether have constructional deficiency, be able to sealing reinforcement with high permeable epoxy resin if finding deformation joint both sides concrete.
(3) take out polyphenyl plate at deformation joint fluting and fill flax silk simultaneously, then with micro-expansion cement sealing, and grouting port and gas outlet are installed.
(4) engineering construction: according to the neo-epoxy resin material of method in embodiment 2 and proportioning preparation toughness, its performance requirement need to meet the regulation of table 5, then adopts high-pressure grout injector to inject this neo-epoxy resin material by Grouting Pipe in deformation joint, until fill.
Table 5:
The feature of pliability neo-epoxy resin and performance requirement
Health and time-based maintenance, reach designing requirement through 72 hours epoxy resin intensity, and EPR deformation joint is repaired water-stop technology and completed deformation joint sealing reinstatement works task like this.But due to sedimentation, concrete expanding with heat and contract with cold, deformation joint in changing, produces minute crack all the time in the middle of causing, finally cause having drainage, therefore wants time-based maintenance.

Claims (7)

1. an EPR deformation joint is repaired water-stopping structure, described deformation joint (11) is formed between two concrete structure layers (12), it is characterized in that: described water-stopping structure comprises that the sealing being made up of high-early (strength) cement keeps off layer (21), is located at epoxy resin impervious barrier (22), the sealing layer (24) being made up of high-early (strength) cement between two described concrete structure layers (12) and is poured into the epoxy resin filling layer (25) in described deformation joint; Described sealing gear layer (21) is located at described deformation joint (11) rear wall, and sealing layer (24) is located at described deformation joint (11) antetheca.
2. EPR deformation joint according to claim 1 is repaired water-stopping structure, it is characterized in that: described sealing layer (24) is provided with grouting port and exhaust opening.
3. EPR deformation joint according to claim 1 is repaired water-stopping structure, it is characterized in that: in described deformation joint, be filled with flax silk layer.
4. the EPR deformation joint as described in any one in claim 1-3 is repaired a construction method for water-stopping structure, it is characterized in that: comprise the steps:
1) on the deformation joint leaking, boring until drill, to injecting high-early (strength) cement slurry after the wall of deformation joint until block and leak as standard, forms sealing gear layer (21);
2) the concrete compaction rate of inspection deformation joint both sides, finds the seepage water spot in the layer of concrete of deformation joint both sides, uses epoxy resin reinforcing to form impervious barrier (22);
3) after deformation joint fluting takes out polyphenyl plate, fill flax silk simultaneously, then adopt high-early (strength) cement to form sealing layer (24) in the front side of deformation joint, and on sealing layer, leave grouting port and the gas outlet for grouting;
4) in the middle of deformation joint, inject epoxide resin material to form epoxy resin filling layer (25) by grouting port, after this epoxide resin material solidifies, form described EPR deformation joint and repair water-stopping structure.
5. EPR deformation joint according to claim 4 is repaired the construction method of water-stopping structure, it is characterized in that: described step 2) in the epoxide resin material of epoxy resin filling layer formed by A, two components of B, component A comprises 100 parts of epoxy resin, 10 parts of reactive diluents, 29 parts of flexibilizer, 1 part of coupling agent; B component comprises 22 parts, curing compound, 6.5 parts, toughness curing compound, 2 parts of blowing agents, 0.5 part of defoamer, 4 parts of rheological agents; Described umber is number meter by weight, and the weight ratio of component A and B component is 4:1.
6. EPR deformation joint according to claim 5 is repaired the construction method of water-stopping structure, it is characterized in that: described reactive diluent is butyl glycidyl ether, flexibilizer is polypropylene glycol diglycidyl ether, silane coupler is γ-glycidol ether propyl trimethoxy silicane, curing compound is N-aminoethyl piperazine, toughness curing compound is polyetheramine, and rheological agent is aerosil.
7. EPR deformation joint according to claim 5 is repaired water-stopping structure, it is characterized in that: described epoxy resin is bisphenol E-type epoxy resin.
CN201410226014.5A 2014-05-26 2014-05-26 EPR deformation joint repairs water-stopping structure and construction method thereof Active CN104018526B (en)

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CN104830030A (en) * 2015-02-05 2015-08-12 朱宏伟 Epoxy resin material for repairing and waterproofing of concrete seam and preparation method thereof
CN104963257A (en) * 2015-06-15 2015-10-07 中国建筑第八工程局有限公司 Gap filling structure and construction method for stone road surface
CN106013259A (en) * 2016-06-30 2016-10-12 陈梦圆 Method for plugging deformation joint of underground engineering concrete structure in vibration disturbing environment
CN106088160A (en) * 2016-06-06 2016-11-09 国网山东省电力公司青岛供电公司 Tunnel deformation seam processing method
CN106436771A (en) * 2016-09-07 2017-02-22 南京正隆顺达高分子材料有限公司 Tunnel and city pipe gallery leakage expansion joint repairing method and expansion joint device
CN111910785A (en) * 2020-08-06 2020-11-10 北京建工集团有限责任公司 Ground anti-seismic deformation joint structure and construction method thereof
CN113235652A (en) * 2021-05-28 2021-08-10 中国二十冶集团有限公司 Leakage plugging method for deformation joint of comprehensive pipe gallery
CN113249071A (en) * 2021-04-23 2021-08-13 中科院广州化灌工程有限公司 High-elasticity epoxy resin grouting material and preparation method and application thereof
CN115232586A (en) * 2022-08-02 2022-10-25 山东省公路桥梁建设集团有限公司 Concrete structure crack repairing process

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CN104480965B (en) * 2014-12-22 2016-08-31 中建六局土木工程有限公司 A kind of clear water reserviors training wall construction method
CN104480965A (en) * 2014-12-22 2015-04-01 中建六局土木工程有限公司 Construction method for guide wall of clean water tank
CN104830030A (en) * 2015-02-05 2015-08-12 朱宏伟 Epoxy resin material for repairing and waterproofing of concrete seam and preparation method thereof
CN104963257A (en) * 2015-06-15 2015-10-07 中国建筑第八工程局有限公司 Gap filling structure and construction method for stone road surface
CN106088160A (en) * 2016-06-06 2016-11-09 国网山东省电力公司青岛供电公司 Tunnel deformation seam processing method
CN106013259B (en) * 2016-06-30 2018-07-10 陈梦圆 Shake the underground engineering concrete structure deformation joint blocking method under bumpy weather
CN106013259A (en) * 2016-06-30 2016-10-12 陈梦圆 Method for plugging deformation joint of underground engineering concrete structure in vibration disturbing environment
CN106436771A (en) * 2016-09-07 2017-02-22 南京正隆顺达高分子材料有限公司 Tunnel and city pipe gallery leakage expansion joint repairing method and expansion joint device
CN106436771B (en) * 2016-09-07 2018-07-10 南京正隆顺达高分子材料有限公司 A kind of tunnel, city piping lane leakage expansion joint method for repairing and mending and expansion gap device
CN111910785A (en) * 2020-08-06 2020-11-10 北京建工集团有限责任公司 Ground anti-seismic deformation joint structure and construction method thereof
CN111910785B (en) * 2020-08-06 2022-04-19 北京建工集团有限责任公司 Ground anti-seismic deformation joint structure and construction method thereof
CN113249071A (en) * 2021-04-23 2021-08-13 中科院广州化灌工程有限公司 High-elasticity epoxy resin grouting material and preparation method and application thereof
CN113235652A (en) * 2021-05-28 2021-08-10 中国二十冶集团有限公司 Leakage plugging method for deformation joint of comprehensive pipe gallery
CN115232586A (en) * 2022-08-02 2022-10-25 山东省公路桥梁建设集团有限公司 Concrete structure crack repairing process
CN115232586B (en) * 2022-08-02 2023-09-15 山东省公路桥梁建设集团有限公司 Concrete structure crack repairing process

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