CN206625843U - A kind of repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete - Google Patents
A kind of repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete Download PDFInfo
- Publication number
- CN206625843U CN206625843U CN201720398086.7U CN201720398086U CN206625843U CN 206625843 U CN206625843 U CN 206625843U CN 201720398086 U CN201720398086 U CN 201720398086U CN 206625843 U CN206625843 U CN 206625843U
- Authority
- CN
- China
- Prior art keywords
- concrete
- bonding layer
- coating
- storage station
- layer
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
It the utility model is related to a kind of repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete, the bonding layer engaged including the crack with concrete surface, construction joint or denudation plane and the face coat above bonding layer, wherein, the bottom land of the bonding layer connects with crack, construction joint or denudation plane, the groove top of the bonding layer connects with face coat, the area for the one side that the face coat connects with bonding layer is more than the area of the groove top of bonding layer, so that the groove top of the bonding layer is completely covered in the face coat.The repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete provided by the utility model, can effectively improve the durability of tunnel concrete, and reduce natural pond clam（Fresh water mussel）Attachment.
Description
Technical field
It the utility model is related to Construction for Hydroelectric Project technical field, and in particular to a kind of hydroenergy storage station water delivery tunnel
The repairing safeguard structure of hole concrete.
Background technology
Hydroenergy storage station concrete water transfer tunnel is the overall important component in power station, the maintenance relation of tunnel state
The efficiency and safety run to power station.Because China is vast in territory, application conditions are complicated, and diversion tunnel concrete lining faces respectively
Kind corrode and the threat of disease, such as carbonization, the erosion of various water quality, silt suspended load rush mill, the jelly of north cold area
Melt, cause degrading for concrete surface；Additionally, due to temperature change, drying shrinkage, steel bar corrosion, overload, uneven settlement of foundation
Etc. factor, concrete produces crack.These infringements have had a strong impact on the durability of concrete.
Natural pond clam in recent years（Fresh water mussel）Invasion also as one of harm of water-conveyance tunnel, natural pond clam is that filter-feeding bottom is dwelt life
Thing, like being attached in coarse concrete surface and hole.A large amount of fresh water mussels of apposition growth reduce in diversion tunnel
The area of passage of pipeline, the roughness for increasing pipeline, emptying effectiveness is reduced, and water quality deterioration, concrete tube wall can be caused
The problems such as degrading, the normal production run in power station is have impact on, substantially increase the maintenance cost of power station concrete water transfer pipeline.
The report for the prevention and controls of fresh water mussel is mainly Agro-chemicals control at present, using chlorine, sodium hypochlorite,
Potassium permanganate, chlorine dioxide, copper sulphate, hydrogen peroxide etc. are killed to fresh water mussel in raw water pipeline.This kind of method is both needed to hold
It is continuous to launch and keep certain concentration, preferable killing effect can be reached.For hydroenergy storage station water-conveyance tunnel fresh water shell
The preventing and treating of dish, this kind of method do not apply to simultaneously.On the one hand, water-conveyance tunnel area is big, wants to reach preferable killing effect, uses change
It is too high to learn medicament expense, deficiency in economic performance；On the other hand, these poisonous chemical agents for having peculiar smell may be aquatic fishes and shrimps etc.
Thing kills, and influences downstream water domain ecology；Secondly, these chemical substances can cause to degrade to water-conveyance tunnel lining concrete, influence
The durability of water conveyance structure.
Chinese patent application 201510261307.1 discloses a kind of preventing and treating hydroenergy storage station reservoir fresh water mussel disaster
Method, this method mainly by hydroenergy storage station it is reservoir watershed carry out Ecological Investigation, build when be exposed to the sun riverbed and setting
The brushing polyurethane such as filtering ponds, gate, trash rack, prevented and treated after construction the methods of dispensing black carp.This method is not suitable for built
The repairing protection and the preventing and treating of fresh water mussel of engineering concrete.
To sum up, it is badly in need of a kind of structure protected the concrete-lined surface crack of existing diversion tunnel.
Utility model content
To solve the deficiencies in the prior art, the utility model provides a kind of hydroenergy storage station water-conveyance tunnel concrete
Repair safeguard structure, including the bonding layer that is engaged with the crack of concrete surface, construction joint or denudation plane and located at engagement
The face coat of layer top, wherein, the bottom land of the bonding layer connects with crack, construction joint or denudation plane, the bonding layer
Groove top connect with face coat, the area of the one side that the face coat connects with bonding layer is more than the face of the groove top of bonding layer
Product, so that the groove top of the bonding layer is completely covered in the face coat.
Wherein, when the surface of the concrete has crack, the face coat is epoxy coating, and the bonding layer is
V-shaped groove, the width of the groove top of the V-shaped groove is between 2-5 centimetres, and the inclination angle of the V-shaped groove is between 30-60 degree.
Wherein, epoxy putty or epoxy resin mortar are filled with the V-shaped groove.
Wherein, when the surface of the concrete has construction joint, the bonding layer is dovetail groove or square groove, and described
Face coat includes separation layer, first surface coating, fiberglass layer and second surface coating, first table successively from the bottom to top
The width of finishing coat is more than the width of separation layer, and the width of the second surface coating is more than the width of fiberglass layer.
Wherein, the dovetail groove or square groove include the plastic sealed layer of bottom and the screed-coat at top, the plasticity
Sealing rod is filled with sealant, epoxy putty or epoxy resin mortar are filled with the screed-coat.
Wherein, the separation layer is elastic polyurethane coating, resilient polyurea type coating or adhesive tape；The first surface
Coating is high tenacity epoxy coating；The material of the fiberglass layer is glass fibre；The second surface coating is high tenacity epoxy
Coating.
Wherein, the upper bottom width of the bonding layer is between 3-8cm, and bottom width is between 2-6cm, and depth is between 3-8cm.
Wherein, when the surface of the concrete, which exists, degrades, the bonding layer is what is contacted with the denudation plane of concrete
Screed-coat, the material of the screed-coat is epoxy putty or epoxy resin mortar, and the face coat is epoxy coating.
In the utility model, so-called " high tenacity epoxy coating ", refer to that tensile strength is more than 15MPa, elongation at break
Epoxy coating more than 5%.
The repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete provided by the utility model, can effectively improve tunnel
The durability of hole concrete, and reduce natural pond clam（Fresh water mussel）Attachment.
Brief description of the drawings
Fig. 1：The structural representation of the utility model first embodiment；
Fig. 2：The structural representation of the utility model second embodiment；
Fig. 3：The structural representation of the utility model 3rd embodiment.
Description of reference numerals
11 V-shaped grooves
12 dovetail grooves
121 plastic sealed layers
122 screed-coats
13 screed-coats
20 face coats/epoxy coating
21 separation layers
22 first surface coatings
23 fiberglass layers
24 second surface coatings
30 cracks
40 construction joints
50 surface deteriorations.
Embodiment
In order to have further understanding to the technical solution of the utility model and beneficial effect, coordinate accompanying drawing detailed below
Illustrate the technical solution of the utility model and its caused beneficial effect.
In the utility model, " width " described in full text, for the width with reference to each left and right directions shown in the drawings, full text institute
" front and rear " stated, in face of the fore-and-aft direction described in each accompanying drawing.
" depth " described in full text, it is the length value extended with reference to each fore-and-aft direction shown in the drawings in the utility model.
The repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete provided by the utility model, including with concrete
The crack on surface, the bonding layer of construction joint or denudation plane engagement and the face coat above bonding layer, specific implementation
When, for crack, construction joint and surface deterioration existing for concrete surface lining cutting, the utility model provides three kinds and repaiied accordingly
Protect safeguard structure.
Fig. 1 is the structural representation of the utility model first embodiment, as shown in figure 1, being deposited for water-conveyance tunnel concrete
In the situation of Lining Crack, the utility model provides a kind of repairing protection knot of hydroenergy storage station water-conveyance tunnel concrete
Structure, including the V-shaped groove 11 engaged with the crack 30 of concrete surface and the epoxy coating 20 above bonding layer, the V
The bottom land of shape groove 11 connects with crack 30, and the groove top of the V-shaped groove 11 connects with epoxy coating 20, the epoxy coating 20 and V
The area for the one side that shape groove 11 connects is more than the area of the groove top of V-shaped groove 11, so that the V is completely covered in the epoxy coating 20
The groove top of shape groove 11.
In the specific implementation, fore-and-aft direction of the V-shaped groove 11 along crack 30 is set the utility model, and the V-shaped groove
The width of 11 groove top is between 2-5 centimetres, and inclination angle is optimal between 30-60 degree, and inclination angle is 45 degree, and is filled out in the V-shaped groove 11
Filled with epoxy putty or epoxy resin mortar, the epoxy coating 20 can be set to the YEC epoxy coatings of high tenacity, the drawing of the epoxy coating
Stretch intensity and be more than 15MPa, elongation at break is more than 5%, can strengthen repairing protection effect of the present utility model.
To ensure that the repairing safeguard structure fracture 30 of hydroenergy storage station water-conveyance tunnel concrete plays preferable maintenance
Effect, it is necessary to which fracture 30 is checked and counted, with 0.2mm before using repairing safeguard structure provided by the utility model
And 0.5mm is boundary's distinctive mark, numbering, and handled according to the dry and wet situation differentiation in crack 30.When the width in crack 30<0.20mm
When, it if crack 30 is dry joint, can not process, if crack 30 is wet seam, need to be closed using polyurathamc class only wet；
When the width in crack 30 is more than or equal to 0.20mm and is less than or equal to 0.5mm, if crack 30 is dry joint, carried out using epoxy grouting
Closing and consolidation process, if crack 30 is wet seam, closed using polyurathamc class only wet, indivedual seepage points can be adopted
Drawn with diversion mode；During width >=the 0.5mm in crack 30, grouting treatment is carried out first, then is closed and reinforced/stopped wet place
Reason, the principle of grouting treatment are identical with the principle for closing and reinforcing/stop wet process：Dry joint selects epoxy grouting, and wet seam is using hair
Steep polyurethanes.
Fig. 2 is the structural representation of the utility model second embodiment, as shown in Fig. 2 being deposited for water-conveyance tunnel concrete
In the situation of construction joint, the utility model combination construction joint stitches to be living, and can produce under load or temperature variations small
Opening and closing campaign the characteristics of, there is provided a kind of repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete, including with it is mixed
Coagulate dovetail groove or square groove that the construction joint 40 on native surface engages（In the utility model, dovetail groove 12 is set to）And located at trapezoidal
The face coat 20 of the top of groove 12, the area for the one side that the face coat 20 connects with dovetail groove 12 are more than the groove of dovetail groove 12
The area on top, so that the groove top of the dovetail groove 12 is completely covered in the face coat 20.
The dovetail groove 12 is a groove being opened up along the cracking direction of construction joint 40, its upper bottom width between 3-8cm,
Width go to the bottom between 2-6cm, depth is between 3-8cm, and its bottom land mat thickness is between 2-4cm plastics seal material, preferably GB
Sealing rod, to form plastic sealed layer 121, top filling epoxy putty or epoxy resin mortar are to flush, to form screed-coat
122。
The face coat 20 includes successively from the bottom to top：
Separation layer 21, is painted on the top of screed-coat 122, and separation layer 21 can be elastic polyurethane coating, resilient polyurea class
Coating or adhesive tape, to provide space for the deformation in crack；Preferably elastic polyurethane coating or resilient polyurea type coating, make
For the coating of elastic material, buffer action on the one hand can be played, on the other hand may also function as the effect of antiseepage；The width of separation layer 21
Degree is generally between 2-10cm.
First surface coating 22, it is painted on the YEC epoxy coatings of the top of separation layer 21, preferably high tenacity, the epoxy
The tensile strength of coating is more than 15MPa, and elongation at break is more than 5%, can strengthen repairing protection effect of the present utility model, described
The width of first surface coating 22 is more than the width of separation layer 21.
Fiberglass layer 23, it is layed in the top of first surface coating 22, preferably glass fiber tape.
Second surface coating 24, it is painted on the YEC epoxy coatings of the top of fiberglass layer 23, preferably high tenacity, the epoxy
The tensile strength of coating is more than 15MPa, and elongation at break is more than 5%, can strengthen repairing protection effect of the present utility model, described
The width of second surface coating 24 is more than the width of fiberglass layer 23.
Fig. 3 is the structural representation of the utility model 3rd embodiment, as shown in figure 3, being deposited for water-conveyance tunnel concrete
In the situation of surface deterioration, the utility model provides a kind of repairing protection knot of hydroenergy storage station water-conveyance tunnel concrete
Structure, including the screed-coat 13 engaged with the surface deterioration 50 of concrete and the epoxy coating 20 above screed-coat 13, institute
The material for stating screed-coat 13 is epoxy putty or epoxy resin mortar.
The repairing safeguard structure of surface deterioration 50 provided by the utility model for concrete, when it is implemented, passing through
Following construction methods are realized：
1st, removing surface
Preferred giant cleaning machine cleans to basal plane, removes laitance, slag inclusion, liver moss, the fresh water of concrete surface
The aquatic organisms such as mussel and loosening position, until the exposed fresh, dense aggregate of concrete surface；The jetting machine work of use
Pressure should select suitable shower nozzle between 20-50MPa, ensure the attachment for removing concrete surface, while do not destroy coagulation
Soil structure.Manner of cleaning up of the manual angle grinder polishing mode as individual sites can be used, as at indivedual protrusions.
2nd, it is levelling
It is more than 5mm concrete surface defect for depth, selects epoxy putty or epoxy resin mortar material to carry out levelling place
Reason.It is required that the surface smoothness after levelling is good, depression and raised requirement are no more than 1mm, and with the adhesion strength of base material concrete
More than 3MPa.For the second best in quality lining cutting surface, this step can be omitted.
3rd, protective materials is coated
Because diversion tunnel is in moist underwater environment, the protective coating of epoxies should be selected, preferentially selects to have concurrently and repaiies
Mend protection and have anti-natural pond clam（Fresh water mussel）The YEC epoxy barrier materials of attached function.Its tensile strength is more than 15MPa,
Elongation at break is more than 5%.Coating material crosses water roughness 0.01, is more than 3MPa with Concrete Bond Strength, anti-permeability performance is more than
2.5MPa.The coating brushing thickness is 1.0mm ~ 2.0mm.
The repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete provided by the utility model, is being embodied
In, inventor further demonstrates its advantage by following two application examples：
Application example 1：The anti-shellfish LP blades processing of certain hydroenergy storage station diversion tunnel
Certain hydroenergy storage station diversion tunnel, hole footpath about 9m, a large amount of fresh water mussels of lining cutting surface attachment are found in maintenance, and
And have it is different degrees of degrade phenomenon, anti-shellfish LP blades processing need to be carried out.
Realize that the embodiment of above-mentioned diversion tunnel concrete surface repairing protection and anti-shellfish etching resist is main
Including following steps：
1st, concrete lining basal plane is handled：The jetting machine operating pressure of use removes coagulation between 20~50MPa
The attachment on native surface.
2nd, lining concrete basal plane is levelling, and concrete surface defect is more, and leveling is carried out using epoxy putty, levelling
Surface smoothness afterwards is good, and depression and raised requirement are no more than 1mm.
3rd, tunneling boring coating YEC epoxy barrier materials, using a doctor blade process, thickness 1.5mm.
The engineering coated area more than 30,000 is flat, and construction period and quality reach client satisfaction.The underwater machine after running 1 year
Device people checks that protective facing is in good condition, has not seen that obvious fresh water mussel adheres to, effect is satisfactory.
Application example 2：Some hydropower station diversion tunnel antiseepage protective treatment
Some hydropower station diversion tunnel is that circle has pressure hole, hole footpath about 6m, finds that tunnel has Seepage, needs to carry out in operation
Anti-seeping technology.
Realize that the embodiment of above-mentioned diversion tunnel concrete surface repairing protection and anti-shellfish etching resist is main
Including following steps：
1st, concrete lining basal plane is handled：The jetting machine operating pressure of use removes coagulation between 20~50MPa
The attachment on native surface.
2nd, tunnel lining fracture unit：Flaw detection and statistics are carried out, using 0.2mm as boundary's distinctive mark, numbering.Dry joint
Seal treatment is carried out using epoxy grouting, wet seam carries out Seal treatment using polyurethane grouting material.
3rd, tunneling boring coating YEC epoxy barrier materials, using doctor blade process, thickness 2.0mm.
Design carries out tunneling boring reverse osmosis, protective treatment to part tunnel using the coating material of embodiment 2, and coating is formed
1.5mm watertight facings, using a doctor blade process；Due to tunnel concrete liner surfacing, leveling is not carried out.The work
Journey coated area more than 10,000 is flat, and construction period and quality reach client satisfaction.Cut off the water inspection after operation in 4 years, protective facing is not
See any defect.
To sum up, compared with prior art, it is provided by the utility model to degrade, split for diversion tunnel concrete lining sake
The repairing protective construction of seam and construction joint.By the processing of these patterns, the durability of concrete can be not only improved, can also be had
Effect reduces the attachment of shellfish biology.By the field test of 9 months, by the concrete test block of protective treatment, compared with blank coagulation
Native test block, the adhesion amount of fresh water mussel reduce 85%, and the carbonation depth of concrete reduces 92.2%, surface roughness 0.010,
Roughness compared with normal concrete reduces by 40%.
To sum up, the repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete provided by the utility model, can be effective
The durability of tunnel concrete is improved, and reduces natural pond clam（Fresh water mussel）Attachment.
Although the utility model is illustrated using above-mentioned preferred embodiment, so it is not limited to the utility model
Protection domain, any those skilled in the art are not being departed within spirit and scope of the present utility model, relatively above-mentioned implementation
Example carries out various variations and still belongs to the scope that the utility model is protected with modification, therefore the scope of protection of the utility model is with right
What claim was defined is defined.
Claims (8)
- A kind of 1. repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete, it is characterised in that：Including with concrete table The crack in face, the bonding layer of construction joint or denudation plane engagement and the face coat above bonding layer, wherein, it is described to connect The bottom land for closing layer connects with crack, construction joint or denudation plane, and the groove top of the bonding layer connects with face coat, the surface The area for the one side that coating connects with bonding layer is more than the area of the groove top of bonding layer, so that institute is completely covered in the face coat State the groove top of bonding layer.
- 2. the repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete as claimed in claim 1, it is characterised in that：When When the surface of the concrete has crack, the face coat is epoxy coating, and the bonding layer is V-shaped groove, the V-shaped groove Groove top width between 2-5 centimetres, the inclination angle of the V-shaped groove is between 30-60 degree.
- 3. the repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete as claimed in claim 2, it is characterised in that：Institute State in V-shaped groove and be filled with epoxy putty or epoxy resin mortar.
- 4. the repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete as claimed in claim 1, it is characterised in that：When When the surface of the concrete has construction joint, the bonding layer is dovetail groove or square groove, and the face coat by it is lower extremely On include separation layer, first surface coating, fiberglass layer and second surface coating successively, the width of the first surface coating is big In the width of separation layer, the width of the second surface coating is more than the width of fiberglass layer.
- 5. the repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete as claimed in claim 4, it is characterised in that：Institute Stating dovetail groove or square groove includes the plastic sealed layer of bottom and the screed-coat at top, is filled with only in the plastic sealed layer Water bar, the screed-coat is interior to be filled with epoxy putty or epoxy resin mortar.
- 6. the repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete as claimed in claim 4, it is characterised in that：Institute It is elastic polyurethane coating, resilient polyurea type coating or adhesive tape to state separation layer；The first surface coating is high tenacity ring Oxygen coating；The material of the fiberglass layer is glass fibre；The second surface coating is high tenacity epoxy coating.
- 7. the repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete as claimed in claim 4, it is characterised in that：Institute The upper bottom width of bonding layer is stated between 3-8cm, bottom width is between 2-6cm, and depth is between 3-8cm.
- 8. the repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete as claimed in claim 1, it is characterised in that：When In the presence of when degrading, the bonding layer is the screed-coat contacted with the denudation plane of concrete, described levelling on the surface of the concrete The material of layer is epoxy putty or epoxy resin mortar, and the face coat is epoxy coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398086.7U CN206625843U (en) | 2017-04-14 | 2017-04-14 | A kind of repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720398086.7U CN206625843U (en) | 2017-04-14 | 2017-04-14 | A kind of repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206625843U true CN206625843U (en) | 2017-11-10 |
Family
ID=60205694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720398086.7U Active CN206625843U (en) | 2017-04-14 | 2017-04-14 | A kind of repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206625843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104846A (en) * | 2018-01-31 | 2018-06-01 | 湖南省交通科学研究院有限公司 | The supercharging reverse osmosis mechanism of cavern and supercharging reverse osmosis method are reserved for square tunnel |
| CN108104846B (en) * | 2018-01-31 | 2024-06-07 | 湖南省交通科学研究院有限公司 | Pressurizing reverse osmosis device and pressurizing reverse osmosis method for reserved cavity of square tunnel |
-
2017
- 2017-04-14 CN CN201720398086.7U patent/CN206625843U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104846A (en) * | 2018-01-31 | 2018-06-01 | 湖南省交通科学研究院有限公司 | The supercharging reverse osmosis mechanism of cavern and supercharging reverse osmosis method are reserved for square tunnel |
| CN108104846B (en) * | 2018-01-31 | 2024-06-07 | 湖南省交通科学研究院有限公司 | Pressurizing reverse osmosis device and pressurizing reverse osmosis method for reserved cavity of square tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103553538B (en) | Architecture indoor percdation solidifies not damaged waterproofing agent | |
| CN207878393U (en) | Hydraulic structure composite anti-penetrating system | |
| CN106884535A (en) | A kind of construction technology of imitative stone material Self-leveling waterproof mortar | |
| CN108166517A (en) | For the shut-in well method and well-sealing device of superelevation floor height hydraulic pressure dewatering well of deep well | |
| CN205857593U (en) | A kind of stone material wet combining structure of anti-stone material pathological changes | |
| CN207904991U (en) | A kind of underground engineering repairing concrete crack construction | |
| CN106760597A (en) | A kind of external wall seepage repair novel construction skill | |
| KR101233593B1 (en) | structure for water proof against of A water treatment construction | |
| CN104373138B (en) | The construction method that waterproof layer is reinvented when a kind of tunnel lining structure is repaired | |
| CN206625843U (en) | A kind of repairing safeguard structure of hydroenergy storage station water-conveyance tunnel concrete | |
| CN105350491B (en) | A kind of high altitude localities dam upstream face impermeable coating and its construction method | |
| CN206956680U (en) | The punching of outlet structure escape works bed load galls bad combined type and repairs structure | |
| JP2007297900A (en) | Repairing method for concrete water-passage wall and structure of the same | |
| CN101560838B (en) | Method for preventing and controlling water leakage in building wall bodies | |
| CN108221876A (en) | A kind of hydraulic engineering flood discharge antiseepage dam | |
| CN204254073U (en) | A kind of pre-stress steel cylinder RPC tubing | |
| CN108894531A (en) | Repairing building cracks method | |
| CN103206093B (en) | Leakage repairing and preventing method for roof settlement joint | |
| CN105040628B (en) | Method for preventing and treating reservoir fresh water mussel disaster of pumped storage power station | |
| CN107083149A (en) | A kind of water-conveyance tunnel concrete surface protection and anti-shellfish coating | |
| CN205637360U (en) | Waterproof roof is planted to underground garage | |
| CN105863665B (en) | A kind of processing method of stone matter tunnel inverted arch scum silica frost | |
| CN204530626U (en) | Using ceramic wafer as the Hydro-concrete Structures of overcoat | |
| CN213142935U (en) | Wading structure | |
| CN104745144B (en) | Nano leak-sealing waterproofing agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |