CN114382326A - Comprehensive treatment system method for water leakage of hydropower station workshop - Google Patents
Comprehensive treatment system method for water leakage of hydropower station workshop Download PDFInfo
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- CN114382326A CN114382326A CN202210014617.3A CN202210014617A CN114382326A CN 114382326 A CN114382326 A CN 114382326A CN 202210014617 A CN202210014617 A CN 202210014617A CN 114382326 A CN114382326 A CN 114382326A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000007547 defect Effects 0.000 claims abstract description 50
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 22
- 239000004568 cement Substances 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 201000010099 disease Diseases 0.000 claims abstract description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 5
- 101100309719 Arabidopsis thaliana SD31 gene Proteins 0.000 claims abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 64
- 239000000463 material Substances 0.000 claims description 27
- 239000004570 mortar (masonry) Substances 0.000 claims description 27
- 239000010410 layer Substances 0.000 claims description 22
- 239000004814 polyurethane Substances 0.000 claims description 22
- 229920002635 polyurethane Polymers 0.000 claims description 22
- 239000004593 Epoxy Substances 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 101100309712 Arabidopsis thaliana SD11 gene Proteins 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 9
- 241000264877 Hippospongia communis Species 0.000 claims description 6
- 239000011440 grout Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 6
- 239000011414 polymer cement Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 239000004234 Yellow 2G Substances 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000011835 investigation Methods 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000010422 painting Methods 0.000 claims 1
- 238000007790 scraping Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0296—Repairing or restoring facades
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a comprehensive treatment system method for leakage water of a hydropower house, which comprises the steps of shoveling and cleaning an original wall surface decorative layer, investigating and analyzing and drawing wall surface defects, classifying defects, treating the leakage water defects, accurately leveling the ground by SD31 self-leveling cement, and coating a layer of lithium-based sealing curing agent on the self-leveling surface 72 hours after the ground cement-based self-leveling construction, so that the ground is brighter, wear-resistant and stain-resistant. Compared with the prior art, the invention has the advantages that: by the scheme, the hydropower station factory building is subjected to system treatment, the treatment effect is excellent, the operation stability and the user experience of the hydropower station factory building are improved, and service and technical guidance are provided for treating leakage water and diseases of large, medium and small hydropower station engineering factory buildings in future.
Description
Technical Field
The invention relates to the field of water conservancy and hydropower plant building engineering, in particular to a comprehensive treatment system method for water leakage of hydropower plants.
Background
The hydropower station consists of a hydraulic system, a mechanical system, an electric energy generating device and the like, is a hydro-junction project for converting water energy into electric energy, and the sustainability of electric energy production requires that the utilization of the water energy of the hydropower station is uninterrupted. Through the construction of a reservoir system of the hydropower station, the distribution of the hydraulic resources on time and space is artificially adjusted and changed, and the sustainable utilization of the hydraulic resources is realized. In order to efficiently convert the water energy in the reservoir into electric energy, the hydropower station needs to be realized by a hydro-electric system.
Disclosure of Invention
The invention aims to solve the technical problems that the current hydropower station factory building water leakage phenomenon is very common, but the treatment method is single, the treatment is temporary and permanent, the treated water leakage is repeated and irregular, the effect is not good, the frequent repeated treatment is needed, the time, the labor and the cost are wasted, and the normal operation of a power plant is influenced.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a comprehensive treatment system method for water leakage of hydropower stations comprises the following steps:
the method comprises the following steps of firstly, removing and cleaning a decoration layer of an original wall surface, removing a latex paint, putty and cement mortar plastering layer of the original wall surface to the surface of cast-in-place concrete, and flushing the removed originally cast concrete wall surface by using clear water;
step two, investigation analysis and drawing of wall surface defects, namely removing the original base surface of the concrete washed by clear water, and visually reflecting the basic defect state of the concrete;
step three, defect classification, including: 1) water leakage defects of concrete structures; 2) a concrete structure durability defect; 3) the common defects of the concrete of the structure;
step four, the treatment of the water leakage defect comprises the following steps: 1) treating the water leakage of the expansion joint of the structure; 2) treating concrete cracks with water leakage; 3) centralized leakage point or scattered leakage treatment; 4) repairing the defects of wall concrete; 5) smearing an auxiliary impermeable layer on the wall surface; 6) spraying a bright color facing mortar coating on the wall surface; 7) cleaning the waste on the ground, and cleaning;
and fifthly, the ground is accurately leveled by adopting SD31 self-leveling cement, and a layer of lithium-based sealing curing agent is coated on the self-leveling surface 72 hours after the ground cement-based self-leveling construction, so that the ground is brighter, wear-resistant and stain-resistant.
Compared with the prior art, the invention has the advantages that: by the scheme, the hydropower station workshop is subjected to system treatment, the treatment effect is excellent, the operation stability and the user experience of the hydropower station workshop are improved, and service and technical guidance are provided for treating leakage water and diseases of large, medium and small hydropower station engineering workshops.
Further, the defect status in step two includes: 1) water leakage defect: local concrete leakage, concrete cracks, leakage of transverse and vertical construction joints, leakage of structural expansion joints and leakage of peripheral joints of pipelines; 2) concrete surface defects: staggered platforms, honeycombs, pitted surfaces, exposed ribs, gap interlayers, local bag expansion, unfilled corners and edge removal.
Further, the step of treating the leakage water of the expansion joint of the structure in the fourth step comprises the following steps:
1) v-shaped grooves are formed in the structural joint, the V-shaped grooves are mechanically or manually chiseled along the structural joint, the opening width of each V-shaped groove is 6cm, the width of each of two sides of the structural joint is 3cm, and the groove depth is 5 cm;
2) cleaning and washing the notch, clearing impurities and ineffective water stopping materials in the seam, and washing the notch;
3) embedding chemical grouting water-stopping needle heads, drilling holes in the structural joints according to the field condition, and embedding the water-stopping needle heads B14, wherein the distance between the water-stopping needle heads is 15 cm-20 cm;
4) the structural joint is closed, the prepared SD11 polymer modified waterproof mortar or quick-setting plugging agent is carefully scraped along the structural joint in batches, and the closing treatment is carried out;
5) filling clear water into the structural joint, cleaning the joint surface, injecting clear water into the structural joint by using an F512 or similar high-pressure grouting machine, and cleaning impurities and sundries in the joint;
6) chemical grouting for a structural joint, wherein the weight ratio of the grouting is 1: 1, uniformly mixing solutions of a hydrophobic polyurethane plugging grouting material E107 (or other hydrophobic polyurethane plugging grouting materials with equal quality) and a hydrophilic polyurethane plugging material E108 (or other hydrophilic polyurethane plugging grouting materials with equal quality), putting the mixed solutions into a material containing barrel of a grouting machine, starting the grouting machine for structural joint grouting, stopping grouting after grout overflows, and waiting for 24 hours to observe whether water seepage exists; if not, entering the next procedure, if water seepage exists, continuing to replenish the water until no water seepage occurs;
7) cleaning the grout overflow in the notch;
8) coating HG-4F wet type epoxy crack pouring base glue in the groove;
9) placing the prepared half pipe with the diameter 20 in the notch and tightly attaching the half pipe to the innermost side of the notch;
10) high-elasticity polyurethane mortar or polyurethane fine stone concrete is filled in the groove opening, and the surface of the groove opening is flush with the concrete surface.
Further, in the concrete crack water seepage treatment method in the fourth step, on the wall surface concrete water seepage treatment, for wet joints, firstly, polyurethane plugging materials are adopted for chemical grouting water plugging, and then HG-4F moist type epoxy joint grouting base glue is poured for reinforcement; for dry joints, HG-4F wet type epoxy joint grouting base glue is directly poured; after grouting, removing the water-stopping needle head, and repairing the needle hole to be flush with the original concrete surface by using polymer modified waterproof mortar SD 11; for cracks with water leakage and without reinforcement requirements, grouting holes are arranged on two sides of the cracks in a crossed mode, drilling holes penetrate the cracks in an inclined mode, the vertical depth is 1/3-1/2 of the structural thickness h, the horizontal distance between the drilling holes and the cracks is 10 cm-25 cm, the hole distance is 30 cm-50 cm, and the inclined angle of the inclined holes is 45-60 degrees.
And further, in the concentrated leakage point or scattered leakage treatment in the fourth step, water stopping needle heads are arranged around the scattered leakage point or the concentrated leakage point of the wall surface for chemical grouting, the grouting material is made of polyurethane leakage stopping material or HG-4F moist type epoxy crack pouring base glue according to the leakage condition, after grouting is finished, the water stopping needle heads are removed, and SD11 polymer modified waterproof mortar is used for repairing the needle holes to be flush with the original concrete surface.
And further, in the step four, in the step of repairing the defects of the wall surface concrete, performing system repairing treatment on various bubbles, honeycombs, pitted surfaces, small holes, staggered platforms, exposed ribs, gap interlayers, local bag swelling and unfilled corners and edges of the wall surface concrete by using SD11 polymer modified cement waterproof mortar or HG-3D epoxy repair mortar.
Further, after the auxiliary anti-seepage layer of the wall surface is coated in the fourth step, after the complete repair of various water leakage defects, concrete disease defects, durability defects and the like of the wall surface is finished, a layer of SD13 cement-based permeable crystalline waterproof coating with the thickness not less than 0.8mm is coated on the whole wall surface, the coating of the SD13 is carried out in two times, the thickness of each time is about 0.4mm, the interval time between the coatings on the two sides is about 24 hours, after the SD13 is completely dried, the SD12 polymer cement waterproof coating with the thickness of about 1.5mm is coated on the surface of the wall surface, the coating of the SD12 polymer cement waterproof coating is carried out in three times, the thickness of each time is about 0.5mm, and the interval time between each time is about 4 hours.
Further, when the bright color facing mortar paint is sprayed on the wall surface in the fourth step, after the composite impermeable coating of the wall surface is completely cured, a layer of bright color facing mortar paint is sprayed or scraped on the auxiliary impermeable coating, wherein the thickness of the coating is about 1.5mm to 2mm, so that the treated wall surface is refreshed.
Detailed Description
When the invention is implemented specifically, the scheme provides a comprehensive treatment system method for leakage water of hydropower station plants, which comprises the following steps:
the method comprises the following steps of firstly, removing and cleaning a decoration layer of an original wall surface, removing a latex paint, putty and cement mortar plastering layer of the original wall surface to the surface of cast-in-place concrete, and flushing the removed originally cast concrete wall surface by using clear water;
step two, investigation analysis and drawing of wall surface defects, namely removing the original base surface of the concrete washed by clear water, and visually reflecting the basic defect state of the concrete;
step three, defect classification, including: 1) water leakage defects of concrete structures; 2) a concrete structure durability defect; 3) the common defects of the concrete of the structure;
step four, the treatment of the water leakage defect comprises the following steps: 1) treating the water leakage of the expansion joint of the structure; 2) treating concrete cracks with water leakage; 3) centralized leakage point or scattered leakage treatment; 4) repairing the defects of wall concrete; 5) smearing an auxiliary impermeable layer on the wall surface; 6) spraying a bright color facing mortar coating on the wall surface; 7) cleaning the waste on the ground, and cleaning;
and fifthly, the ground is accurately leveled by adopting SD31 self-leveling cement, and a layer of lithium-based sealing curing agent is coated on the self-leveling surface 72 hours after the ground cement-based self-leveling construction, so that the ground is brighter, wear-resistant and stain-resistant.
Further, the defect status in step two includes: 1) water leakage defect: local concrete leakage, concrete cracks, leakage of transverse and vertical construction joints, leakage of structural expansion joints and leakage of peripheral joints of pipelines; 2) concrete surface defects: staggered platforms, honeycombs, pitted surfaces, exposed ribs, gap interlayers, local bag expansion, unfilled corners and edge removal.
The scheme can basically cover the comprehensive treatment and repair contents of the water leakage and various defects of the hydropower station buildings, the systematic innovation thought, the perfect matching of the material process and the long-term durability of both temporary solution and permanent solution, and completely breaks through the traditional single treatment mode and thinking of headache and foot pain treatment.
Further, the step of treating the leakage water of the expansion joint of the structure in the fourth step comprises the following steps:
1) v-shaped grooves are formed in the structural joint, the V-shaped grooves are mechanically or manually chiseled along the structural joint, the opening width of each V-shaped groove is 6cm, the width of each of two sides of the structural joint is 3cm, and the groove depth is 5 cm;
2) cleaning and washing the notch, clearing impurities and ineffective water stopping materials in the seam, and washing the notch;
3) embedding chemical grouting water-stopping needle heads, drilling holes in the structural joints according to the field condition, and embedding the water-stopping needle heads B14, wherein the distance between the water-stopping needle heads is 15 cm-20 cm;
4) the structural joint is closed, the prepared SD11 polymer modified waterproof mortar or quick-setting plugging agent is carefully scraped along the structural joint in batches, and the closing treatment is carried out;
5) filling clear water into the structural joint, cleaning the joint surface, injecting clear water into the structural joint by using an F512 or similar high-pressure grouting machine, and cleaning impurities and sundries in the joint;
6) chemical grouting for a structural joint, wherein the weight ratio of the grouting is 1: 1, uniformly mixing solutions of a hydrophobic polyurethane plugging grouting material E107 (or other hydrophobic polyurethane plugging grouting materials with equal quality) and a hydrophilic polyurethane plugging material E108 (or other hydrophilic polyurethane plugging grouting materials with equal quality), putting the mixed solutions into a material containing barrel of a grouting machine, starting the grouting machine for structural joint grouting, stopping grouting after grout overflows, and waiting for 24 hours to observe whether water seepage exists; if not, entering the next procedure, if water seepage exists, continuing to replenish the water until no water seepage occurs;
7) cleaning the grout overflow in the notch;
8) coating HG-4F wet type epoxy crack pouring base glue in the groove;
9) placing the prepared half pipe with the diameter 20 in the notch and tightly attaching the half pipe to the innermost side of the notch;
10) high-elasticity polyurethane mortar or polyurethane fine stone concrete is filled in the groove opening, and the surface of the groove opening is flush with the concrete surface.
According to the characteristics of the hydropower station factory building, a set of complete system method for treating the concrete leakage water defect of the hydropower station factory building is explored. This set of methods has three key points: 1. the unique concept innovation of system management, 2, high compatibility integration of materials and processes, and 3, long-term durability which can not only treat symptoms but also treat root causes.
Further, in the concrete crack water seepage treatment method in the fourth step, on the wall surface concrete water seepage treatment, for wet joints, firstly, polyurethane plugging materials are adopted for chemical grouting water plugging, and then HG-4F moist type epoxy joint grouting base glue is poured for reinforcement; for dry joints, HG-4F wet type epoxy joint grouting base glue is directly poured; after grouting, removing the water-stopping needle head, and repairing the needle hole to be flush with the original concrete surface by using polymer modified waterproof mortar SD 11; for cracks with water leakage and without reinforcement requirements, grouting holes are arranged on two sides of the cracks in a crossed mode, drilling holes penetrate the cracks in an inclined mode, the vertical depth is 1/3-1/2 of the structural thickness h, the horizontal distance between the drilling holes and the cracks is 10 cm-25 cm, the hole distance is 30 cm-50 cm, and the inclined angle of the inclined holes is 45-60 degrees.
And further, in the concentrated leakage point or scattered leakage treatment in the fourth step, water stopping needle heads are arranged around the scattered leakage point or the concentrated leakage point of the wall surface for chemical grouting, the grouting material is made of polyurethane leakage stopping material or HG-4F moist type epoxy crack pouring base glue according to the leakage condition, after grouting is finished, the water stopping needle heads are removed, and SD11 polymer modified waterproof mortar is used for repairing the needle holes to be flush with the original concrete surface.
And further, in the step four, in the step of repairing the defects of the wall surface concrete, performing system repairing treatment on various bubbles, honeycombs, pitted surfaces, small holes, staggered platforms, exposed ribs, gap interlayers, local bag swelling and unfilled corners and edges of the wall surface concrete by using SD11 polymer modified cement waterproof mortar or HG-3D epoxy repair mortar.
Further, after the auxiliary anti-seepage layer of the wall surface is coated in the fourth step, after the complete repair of various water leakage defects, concrete disease defects, durability defects and the like of the wall surface is finished, a layer of SD13 cement-based permeable crystalline waterproof coating with the thickness not less than 0.8mm is coated on the whole wall surface, the coating of the SD13 is carried out in two times, the thickness of each time is about 0.4mm, the interval time between the coatings on the two sides is about 24 hours, after the SD13 is completely dried, the SD12 polymer cement waterproof coating with the thickness of about 1.5mm is coated on the surface of the wall surface, the coating of the SD12 polymer cement waterproof coating is carried out in three times, the thickness of each time is about 0.5mm, and the interval time between each time is about 4 hours.
Further, when the bright color facing mortar paint is sprayed on the wall surface in the fourth step, after the composite impermeable coating of the wall surface is completely cured, a layer of bright color facing mortar paint is sprayed or scraped on the auxiliary impermeable coating, wherein the thickness of the coating is about 1.5mm to 2mm, so that the treated wall surface is refreshed.
While there have been shown and described the fundamental principles and principal features of the invention and advantages thereof, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are given by way of illustration of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A comprehensive treatment system method for water leakage of hydropower stations is characterized by comprising the following steps:
the method comprises the following steps of firstly, removing and cleaning a decoration layer of an original wall surface, removing a latex paint, putty and cement mortar plastering layer of the original wall surface to the surface of cast-in-place concrete, and flushing the removed originally cast concrete wall surface by using clear water;
step two, investigation analysis and drawing of wall surface defects, namely removing the original base surface of the concrete washed by clear water, and visually reflecting the basic defect state of the concrete;
step three, defect classification, including: 1) water leakage defects of concrete structures; 2) a concrete structure durability defect; 3) the common defects of the concrete of the structure;
step four, the treatment of the water leakage defect comprises the following steps: 1) treating the water leakage of the expansion joint of the structure; 2) treating concrete cracks with water leakage; 3) centralized leakage point or scattered leakage treatment; 4) repairing the defects of wall concrete; 5) smearing an auxiliary impermeable layer on the wall surface; 6) spraying a bright color facing mortar coating on the wall surface; 7) cleaning the waste on the ground, and cleaning;
and fifthly, the ground is accurately leveled by adopting SD31 self-leveling cement, and a layer of lithium-based sealing curing agent is coated on the self-leveling surface 72 hours after the ground cement-based self-leveling construction, so that the ground is brighter, wear-resistant and stain-resistant.
2. The comprehensive treatment system method for the water leakage of the hydropower house according to claim 1, characterized in that: the defect state in the second step comprises: 1) water leakage defect: local concrete leakage, concrete cracks, leakage of transverse and vertical construction joints, leakage of structural expansion joints and leakage of peripheral joints of pipelines; 2) concrete surface defects: staggered platforms, honeycombs, pitted surfaces, exposed ribs, gap interlayers, local bag expansion, unfilled corners and edge removal.
3. The comprehensive treatment system method for the water leakage of the hydropower house according to claim 1, characterized in that: the step four comprises the steps of treating the leakage water of the expansion joint of the structure:
1) v-shaped grooves are formed in the structural joint, the V-shaped grooves are mechanically or manually chiseled along the structural joint, the opening width of each V-shaped groove is 6cm, the width of each of two sides of the structural joint is 3cm, and the groove depth is 5 cm;
2) cleaning and washing the notch, clearing impurities and ineffective water stopping materials in the seam, and washing the notch;
3) embedding chemical grouting water-stopping needle heads, drilling holes in the structural joints according to the field condition, and embedding the water-stopping needle heads B14, wherein the distance between the water-stopping needle heads is 15 cm-20 cm;
4) the structural joint is closed, the prepared SD11 polymer modified waterproof mortar or quick-setting plugging agent is carefully scraped along the structural joint in batches, and the closing treatment is carried out;
5) filling clear water into the structural joint, cleaning the joint surface, injecting clear water into the structural joint by using an F512 or similar high-pressure grouting machine, and cleaning impurities and sundries in the joint;
6) chemical grouting for a structural joint, wherein the weight ratio of the grouting is 1: 1, uniformly mixing solutions of a hydrophobic polyurethane plugging grouting material E107 and a hydrophilic polyurethane plugging material E108, filling the mixture into a material containing barrel of a grouting machine, starting the grouting machine for structural joint grouting, pausing grouting after grout overflows, and waiting for 24 hours to observe whether water seepage exists; if not, entering the next procedure, if water seepage exists, continuing to replenish the water until no water seepage occurs;
7) cleaning the grout overflow in the notch;
8) coating HG-4F wet type epoxy crack pouring base glue in the groove;
9) placing the prepared half pipe with the diameter 20 in the notch and tightly attaching the half pipe to the innermost side of the notch;
10) high-elasticity polyurethane mortar or polyurethane fine stone concrete is filled in the groove opening, and the surface of the groove opening is flush with the concrete surface.
4. The comprehensive treatment system method for the water leakage of the hydropower house according to claim 1, characterized in that: in the concrete crack water seepage treatment method of the fourth step, on the wall surface concrete water seepage treatment, for wet joints, firstly, polyurethane plugging materials are adopted for chemical grouting water plugging, and then HG-4F moist type epoxy crack pouring base glue is poured for reinforcement; for dry joints, HG-4F wet type epoxy joint grouting base glue is directly poured; after grouting, removing the water-stopping needle head, and repairing the needle hole to be flush with the original concrete surface by using polymer modified waterproof mortar SD 11; for cracks with water leakage and without reinforcement requirements, grouting holes are arranged on two sides of the cracks in a crossed mode, drilling holes penetrate the cracks in an inclined mode, the vertical depth is 1/3-1/2 of the structural thickness h, the horizontal distance between the drilling holes and the cracks is 10 cm-25 cm, the hole distance is 30 cm-50 cm, and the inclined angle of the inclined holes is 45-60 degrees.
5. The comprehensive treatment system method for the water leakage of the hydropower house according to claim 1, characterized in that: and in the concentrated leakage point or scattered leakage treatment of the fourth step, water stopping needle heads are arranged around the scattered leakage point or the scattered leakage position of the wall surface, chemical grouting is carried out, the grouting material is made of polyurethane leakage stopping material or HG-4F wet type epoxy crack pouring base glue according to the leakage condition, after grouting is finished, the water stopping needle heads are removed, and SD11 polymer modified waterproof mortar is used for repairing the needle holes to be flush with the original concrete surface.
6. The comprehensive treatment system method for the water leakage of the hydropower house according to claim 1, characterized in that: and in the step four, in the wall surface concrete defect repairing, system repairing treatment is carried out on various bubbles, honeycombs, pitted surfaces, small holes, staggered platforms, exposed ribs, gap interlayers, local bag swelling and unfilled corner edge falling of the wall surface concrete by using SD11 polymer modified cement waterproof mortar or HG-3D epoxy repairing mortar.
7. The comprehensive treatment system method for the water leakage of the hydropower house according to claim 1, characterized in that: and step four, after the wall surface is coated with the auxiliary impermeable layer, a layer of SD13 cement-based capillary crystalline waterproof coating with the thickness not less than 0.8mm is applied to the whole wall surface after the complete repair of various water leakage defects, concrete disease defects, durability defects and the like of the wall surface is finished, the SD13 painting is carried out in two times, the thickness of each time is about 0.4mm, the interval time between the coatings on the two sides is about 24 hours, after the SD13 is completely dried, a layer of SD12 polymer cement waterproof coating with the thickness of about 1.5mm is painted on the surface of the wall surface, the SD12 polymer cement waterproof coating is painted in three times, the thickness of each time is about 0.5mm, and the interval time between each time is about 4 hours.
8. The comprehensive treatment system method for the water leakage of the hydropower house according to claim 1, characterized in that: and when the bright-colored facing mortar paint is sprayed on the wall surface in the fourth step, after the composite impermeable coating of the wall surface is completely cured, spraying or scraping a layer of bright-colored facing mortar paint on the auxiliary impermeable coating, wherein the thickness of the coating is about 1.5mm to 2mm, so that the treated wall surface is refreshed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210014617.3A CN114382326A (en) | 2022-01-07 | 2022-01-07 | Comprehensive treatment system method for water leakage of hydropower station workshop |
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| CN202210014617.3A CN114382326A (en) | 2022-01-07 | 2022-01-07 | Comprehensive treatment system method for water leakage of hydropower station workshop |
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| CN114382326A true CN114382326A (en) | 2022-04-22 |
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| CN202210014617.3A Pending CN114382326A (en) | 2022-01-07 | 2022-01-07 | Comprehensive treatment system method for water leakage of hydropower station workshop |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033206A (en) * | 1988-12-05 | 1989-05-31 | 铁道部山海关桥梁工厂 | Construction technology of preventing and controlling seepage in buildings |
| KR20060039066A (en) * | 2004-11-02 | 2006-05-08 | 주식회사 콘크리트미학 | Method for restoring the original form of the trace repairng the crack of concrete structure |
| US20110189385A1 (en) * | 2010-02-03 | 2011-08-04 | Manuel Darryl F | Products and methods for repairing concrete surfaces |
| CN105780940A (en) * | 2016-04-28 | 2016-07-20 | 中国化学工程第三建设有限公司 | Building expansion joint anti-seeping structure |
| CN110107107A (en) * | 2019-04-19 | 2019-08-09 | 湖北蓝瑞联合建筑科技有限公司 | Elevator leaks comprehensive leak stopping and repairs method |
| CN110185277A (en) * | 2019-04-19 | 2019-08-30 | 上海市建筑装饰工程集团有限公司 | The restorative procedure of existing building external wall seepage point |
| CN213898232U (en) * | 2020-10-14 | 2021-08-06 | 湖南省水运建设投资集团有限公司 | Anti-seepage device for underground powerhouse of hydropower station |
| CN113503056A (en) * | 2021-08-11 | 2021-10-15 | 苏州佳固士新材料科技有限公司 | Building deformation joint leakage maintenance method |
-
2022
- 2022-01-07 CN CN202210014617.3A patent/CN114382326A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033206A (en) * | 1988-12-05 | 1989-05-31 | 铁道部山海关桥梁工厂 | Construction technology of preventing and controlling seepage in buildings |
| KR20060039066A (en) * | 2004-11-02 | 2006-05-08 | 주식회사 콘크리트미학 | Method for restoring the original form of the trace repairng the crack of concrete structure |
| US20110189385A1 (en) * | 2010-02-03 | 2011-08-04 | Manuel Darryl F | Products and methods for repairing concrete surfaces |
| CN105780940A (en) * | 2016-04-28 | 2016-07-20 | 中国化学工程第三建设有限公司 | Building expansion joint anti-seeping structure |
| CN110107107A (en) * | 2019-04-19 | 2019-08-09 | 湖北蓝瑞联合建筑科技有限公司 | Elevator leaks comprehensive leak stopping and repairs method |
| CN110185277A (en) * | 2019-04-19 | 2019-08-30 | 上海市建筑装饰工程集团有限公司 | The restorative procedure of existing building external wall seepage point |
| CN213898232U (en) * | 2020-10-14 | 2021-08-06 | 湖南省水运建设投资集团有限公司 | Anti-seepage device for underground powerhouse of hydropower station |
| CN113503056A (en) * | 2021-08-11 | 2021-10-15 | 苏州佳固士新材料科技有限公司 | Building deformation joint leakage maintenance method |
Non-Patent Citations (1)
| Title |
|---|
| 马建革: "《混凝土缺陷处理技术及应用》", 30 June 2009, 黄河水利出版社, pages: 1 - 35 * |
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