CN108868187B - Construction method of elevator shaft leakage water repairing system - Google Patents
Construction method of elevator shaft leakage water repairing system Download PDFInfo
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- CN108868187B CN108868187B CN201810719274.4A CN201810719274A CN108868187B CN 108868187 B CN108868187 B CN 108868187B CN 201810719274 A CN201810719274 A CN 201810719274A CN 108868187 B CN108868187 B CN 108868187B
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- 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
Abstract
The invention provides a construction method of an elevator shaft leakage water repairing system, and relates to the technical field of building engineering. The construction method of the repair system comprises the following steps: forming a V-shaped groove at the internal corner of the construction area, and coating an interface waterproof agent; plugging the V-shaped groove by using waterproof sealant; brushing repair mortar integrally; integrally brushing polymer cement-based flexible waterproof paint; polyester cloth is additionally arranged at the internal corner part; then the polymer cement-based flexible waterproof coating is integrally coated; integrally brushing polyurethane waterproof paint; pasting a waterproof coiled material, and integrally pouring impervious broken stone concrete on the ground; and painting waterproof mortar on the wall surface. By adopting a multilayer waterproof structure stacked layer by layer, various materials and various processes are combined together, and the problem of water leakage of the elevator shaft is solved systematically.
Description
Technical Field
The invention relates to the technical field of building engineering, in particular to a construction method of an elevator shaft leakage water repairing system.
Background
The elevator shaft is an indispensable facility in modern buildings, is used for placing elevators, construction joints at the root parts of the wall bodies of the elevator shaft are special parts which are easy to leak, and the water leakage is mainly caused by ⑴ overlarge deformation of the building, exceeding an allowable deformation range, mainly expansion with heat and contraction with cold and uneven settlement of a foundation, ⑵ water leakage caused by damage to a waterproof structure of the elevator in the construction process, ⑶ water failure caused by quick displacement in the construction process, ⑷ loose, dog-hole, honeycomb and other phenomena caused by the fact that concrete is not poured to a compact degree, and a water leakage channel is formed.
Disclosure of Invention
The invention aims to provide a construction method of a repairing system of the leakage water of an elevator shaft so as to meet the waterproof requirement of the elevator shaft.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
The invention provides a construction method of a repair system of elevator shaft leakage water, which comprises the following steps:
s1, removing accumulated water in the foundation pit;
s2, removing the material layers of the foundation pit bottom plate and the wall body to the concrete structure layer to form a construction area;
s3, removing rust of the steel members pre-buried in the foundation pit;
s4, brushing an anti-rust primer on the surface of the steel member;
s5, forming a V-shaped groove at the internal corner of the construction area;
s6, coating interface waterproofing agent on the surface of the construction area including the V-shaped groove;
s7, plugging the V-shaped groove by using waterproof sealant;
s8, brushing repair mortar on the whole construction area;
s9, integrally brushing a polymer cement-based rigid waterproof coating;
s10, brushing polymer cement-based flexible waterproof paint on the whole;
s11, polyester cloth is additionally arranged at the internal corner part of the construction area and the embedded part for fixing the elevator;
s12, integrally brushing polymer cement-based flexible waterproof paint;
s13, brushing the polyurethane waterproof paint on the whole;
s14, pasting a waterproof roll on the polyurethane waterproof paint in the step S13;
s15, integrally pouring impervious gravel concrete on the construction part on the ground;
and S16, painting waterproof mortar on the construction part of the wall surface.
The repairing system provided by the embodiment of the invention carries out a plurality of waterproof treatments on the root of the wall body of the elevator shaft, adopts an interface waterproof agent to enhance the bonding force between an interface and a waterproof material, lays a plurality of waterproof layers such as repair mortar, a plurality of waterproof coatings and waterproof mortar, and carries out structural reinforcement by paving waterproof coiled materials, polyester cloth and the like. The scheme combines various materials and processes, and the system solves the problem of water leakage of the elevator shaft.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a repairing system for leakage water of an elevator shaft according to embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of the structure of the waterproofing membrane of FIG. 1;
fig. 4 is a schematic structural view of a repairing system for leakage water of an elevator shaft according to embodiment 2 of the present invention;
FIG. 5 is a schematic diagram of the firmware of FIG. 4;
fig. 6 is a schematic structural view of an aluminum polyurethane foam sheet according to example 3 of the present invention.
Icon: 10-concrete structural layer; 40-a reinforcement; 41-clamping head; 42-clamping feet; 421-opening holes; 43-elastic protrusions; 50-polyurethane foam aluminum plate; 51-bowl shaped boss; 52-a through hole; 53-slotting; 54-a limit groove; 1-a V-shaped groove; 2-interface waterproofing agent; 3-waterproof sealant; 4-repairing mortar; 5-polymer cement-based rigid waterproof coating; 6-polymer cement-based flexible waterproof coating; 7-polyester cloth; 8-polyurethane waterproof paint; 9-waterproof coiled material; 91-a first modified asphalt self-adhesive waterproof roll layer; 92-a basalt fiber reinforced layer; 93-a second modified asphalt self-adhesive waterproof roll layer; 11-impervious gravel concrete; 12-waterproof mortar.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The following is a detailed description of the system for repairing leakage water in an elevator shaft according to an embodiment of the present invention.
Referring to fig. 1 and 2, an embodiment of the present invention provides a method for constructing a system for repairing leakage water in an elevator shaft, where the method for constructing the system comprises the following steps:
and S1, removing the accumulated water in the foundation pit, for example, removing the accumulated water in the foundation pit by using a pumping device, and ensuring that no open water exists in the foundation pit.
And S2, removing the material layers of the foundation pit bottom plate and the wall body to the concrete structure layer 10 to form a construction area. Specifically, the material layer of the wall body above the surface layer of the ground by about 100mm is cut off.
And S3, removing rust of the steel members pre-buried in the foundation pit. A steel member for fixing the elevator is generally buried in the pit of the elevator shaft. For example, rust removal by grinding is performed by using a rust removal tool such as a grinder.
And S4, brushing the surface of the steel member with an anti-rust primer. The rust-proof primer can better protect the steel member, resist rust, corrosion and oxidation of the steel member, and can also be used as a base layer for treatment to use the adhesion force of a reinforcing material, so that the material is not easy to delaminate and hollows. Preferably, 2 coats of the anti-corrosive primer, each coat having a thickness of 1 mm. But not limited to this, the coating amount and thickness of the primer may be adjusted according to the actual situation. In this embodiment, two layers of anti-corrosive primer are applied, and the second layer of primer is applied after the surface of the first layer of primer is dried.
Preferably, the anti-rust primer comprises the following components in parts by weight: 120 portions of water and 150 portions of water; 1-2 parts of a pH regulator; 2-3 parts of a wetting agent; 3-5 parts of a dispersing agent; 3-5 parts of a defoaming agent; 1-3 parts of a preservative; 4-6 parts of flash rust inhibitor; 7-12 parts of a film-forming assistant; 15-22 parts of a propylene glycol antifreeze agent; 45-55 parts of titanium dioxide; 380 portions of coarse whiting; 380 portions of hydrogen-containing silicone oil emulsion and 460 portions of hydrogen-containing silicone oil emulsion; 4-8 parts of a leveling agent; 8-12 parts of a thickening agent. The above-mentioned raw materials are commercially available. For example, as the flash rust inhibitor, FA179 from Haimines corporation is used; the wetting agent adopts X-405 of the Dow chemical industry; the leveling agent is an UV leveling agent SC-333; (ii) a The hydrogen-containing silicone oil emulsion adopts hydrogen-containing silicone oil emulsion CX-360; as the film-forming assistant, Texanol available from Zilu Ishmann company was used.
And S5, drilling the V-shaped groove 1 at the internal corner of the construction area by using an electric angle grinder or impact. Preferably, the V-shaped grooves are 2cm wide and 3cm deep. The proper V-shaped groove with a certain depth is formed, and the specific waterproof treatment is applied to the internal corner, so that the waterproof effect at the internal corner can be enhanced. The V-shaped groove is too large, which affects the stability of the building structure, and the V-shaped groove is too small, which is not beneficial to waterproof treatment.
S6, coating the interface waterproofing agent 2 on the surface of the construction area including the V-shaped groove. The coating interface waterproof agent has the functions of: the waterproof sealant has the advantages of waterproof function, bonding function between the concrete base layer and the waterproof sealant, and no delaminating.
Preferably, the interface waterproofing agent 2 comprises liquid materials and powder materials in a mass ratio of 1: 3-4, and the liquid materials comprise the following components in parts by weight: 380 portions of waterproof emulsion and 420 portions of waterproof emulsion; 2-5 parts of a preservative; 2-5 parts of a defoaming agent; 590 portion of water and 610 portions of water. The powder material comprises: cement 320-380 parts; 420 and 460 parts of sand; 150 portions of coarse whiting and 180 portions of coarse whiting; 3-6 parts of porous silicon carbide; 12-16 parts of zeolite molecular sieve; 160 portions of gypsum and 180 portions of gypsum; 1-3 parts of cellulose ether. The above-mentioned raw materials are commercially available. For example, the waterproof emulsion is Basf PS608 waterproof emulsion, the sand is 70-140 grade sand, the coarse whiting is 700CC of Guangfu Jian material company, and the defoaming agent is W086 of Hamming company. By utilizing the gelling effect of the gypsum and the drainage effect of the porous silicon carbide and the zeolite molecular sieve, the waterproof effect can be further improved, and the hardness is enhanced. More preferably, the liquid material and the powder material are added according to the proportion of 1:3, so that the interface waterproof agent with the compressive strength of more than 0.8MPa can be obtained.
And S7, plugging the V-shaped groove by using waterproof sealant 3. Preferably, the waterproof sealant 3 comprises the following components in parts by weight: 120-140 parts of liquid polysulfide rubber; 0.5-1 part of silane coupling agent; 16-20 parts of manganese dioxide; 8-10 parts of carbon black; 3-5 parts of acrylic resin; 20-30 parts of diethanolamine; 4-8 parts of sorbitol; 3-5 parts of a dispersing agent; and 4-8 parts of a leveling agent. The above raw material components are commercially available. The polysulfide waterproof sealant and the base layer interface agent have good compatibility, and can generate good bonding effect between the two. The mechanical property of the sealant is improved by the carbon black, and the addition of the diethanol amine destroys hydrogen bonds among macromolecules of the polysulfide rubber, increases the distance among the molecules and endows the sealant with good coating workability.
And S8, painting the repair mortar 4 on the whole construction area. Further, the repair mortar forms a 45-degree arc-shaped drainage slope at the internal corner.
Preferably, the repair mortar 4 comprises, in parts by weight: 200 portions and 300 portions of sulphoaluminate cement; 200 portions and 300 portions of Portland cement; 500 portions and 600 portions of quartz sand; 1-2 parts of a defoaming agent; 2-4 parts of cellulose ether; 1-2 parts of a water reducing agent; 16-20 parts of fly ash; 1-2 parts of an early strength agent. The above raw material components are commercially available. For example, the anti-foaming agent is tributyl phosphate. The portland cement is one of PO42.5 portland cement or PO52.5 portland cement. The water reducing agent is a polycarboxylic acid water reducing agent, and the early strength agent is one of anhydrous calcium chloride, anhydrous sodium sulfate, lithium carbonate or sodium carbonate. The addition of the fly ash can reduce the alkalinity and the hydration heat of the system, so that the microcracks of the hardened body of the composite gelling system are reduced, the durability of the system can be improved, the fly ash can further improve the strength and the compactness of the repair mortar, improve the wear resistance and reduce the drying shrinkage through the hydration reaction.
And S9, brushing the polymer cement-based rigid waterproof paint 5 on the whole. Preferably, the thickness is 1.2 mm.
Preferably, the polymer cement-based rigid waterproof coating comprises the following components in parts by weight: 420 parts of waterproof emulsion 360; 40-60 parts of polydimethylsiloxane, 1-3 parts of a defoaming agent; 1-3 parts of a preservative; 400 portions of water and 450 portions of water; 400 portions of Portland cement and 500 portions of Portland cement; sand 580 and 620 portions; 1-3 parts of cellulose ether; 1-3 parts of a water reducing agent. The above raw material components are commercially available. For example, the waterproof emulsion is Basff PS608 waterproof emulsion, and the water reducing agent is polycarboxylic acid water reducing agent. According to the polymer cement-based rigid waterproof coating, the hydrophobic property of the coating is improved by adding polydimethylsiloxane, and the coating is matched with waterproof emulsion, so that the coating and a substrate are integrated to form a layer of waterproof layer with compact crystallization, water is prevented from passing through, and the aim of waterproofing integrally is fulfilled. And the cement-based rigid component can ensure that the cement-based rigid component has excellent binding power with a base material and good vertical creep resistance, and can keep good stability under high water pressure.
S10, the polymer cement-based flexible waterproof paint 6 is integrally coated, and the thickness is preferably 1.5 mm.
Preferably, the polymer cement-based flexible waterproof coating comprises 850 parts of waterproof emulsion, 2 parts of defoaming agent, 2 parts of preservative, 146 parts of water, 450 parts of ordinary portland cement, 300 parts of 70-140 graded sand and 250 parts of heavy calcium carbonate in parts by weight. The waterproof coating has excellent flexibility and strong bonding force, and can realize high-efficiency bonding.
And S11, adding polyester cloth at the internal corner part of the construction area and the embedded part for fixing the elevator. Preferably, the polyester cloth 7 added at the internal corner part is about 300mm wide, and the polyester cloth added at the embedded part is preferably used for completely covering the embedded part.
Preferably, the polyester cloth is previously impregnated with the polymer cement-based flexible waterproof coating. The polyester cloth has stronger extension force, and can increase the tensile strength and the extension force of the waterproof structure. And the polyester cloth soaked with the polymer cement-based flexible waterproof coating can form more slurry bonding layers and has stronger adhesive force.
S12, the polymer cement-based flexible waterproof paint 6 is painted integrally. Preferably, the thickness is 1.5 mm.
And S13, brushing the polyurethane waterproof paint 8 on the whole. Preferably, the thickness of the polyurethane waterproofing paint 8 is 2.0 mm.
The polyurethane waterproof paint is a single-component polyurethane waterproof paint prepared by mixing a prepolymer containing isocyanate groups, which is prepared by addition polymerization of isocyanate, polyether and the like, with a catalyst, an anhydrous auxiliary agent, an anhydrous filler, a solvent and the like. The high-strength high-elongation waterproof paint has the characteristics of high strength, high elongation, high water resistance and the like, and has strong adaptability to deformation of a base layer.
S14, the waterproofing membrane 9 is stuck on the polyurethane waterproofing paint of step S13. For example, the SBS modified asphalt waterproof coiled material has high elongation and stronger puncture resistance and tearing resistance.
Further preferably, referring to fig. 3, in this embodiment, the waterproof roll 9 includes a first modified asphalt self-adhesive waterproof roll layer 91, a basalt fiber reinforced layer 92, and a second modified asphalt self-adhesive waterproof roll layer 93, which are sequentially disposed.
The preparation method of the waterproof roll 9 comprises the following steps:
(1) mixing 8-10 parts by weight of cyanoethyl cellulose, 2-3 parts by weight of polydimethylsiloxane, 90 parts by weight of bisphenol A type unsaturated polyester and 0.5-1 part by weight of isocyanate curing agent to obtain a mixed solution;
(2) and spraying the mixed liquid on a layer of modified asphalt self-adhesive waterproof coiled material, then laying a basalt fiber chopped strand mat, curing for 30-40 min, then spraying the mixed liquid on the basalt fiber chopped strand mat to form a basalt fiber reinforced layer, then adhering a layer of modified asphalt self-adhesive waterproof coiled material on the basalt fiber reinforced layer, and curing for 10-12 min to obtain the waterproof coiled material.
The basalt fiber has good tensile strength and elastic modulus, and is excellent in acid resistance, alkali resistance and water resistance, and the basalt fiber reinforced layer is clamped in the modified asphalt self-adhesive waterproof coiled material, so that the tear resistance of the waterproof coiled material can be effectively enhanced, and particularly, the damage to a waterproof structure caused by displacement generated in the construction process can be effectively avoided.
In the preparation process, the mixed liquid taking the unsaturated polyester as the main component can provide a protective layer for the basalt fiber reinforced layer so as to improve the weather resistance, corrosion resistance, wear resistance and the like of the waterproof roll. And the basalt fiber reinforced layer and the modified asphalt self-adhesive waterproof coiled material layer are tightly combined under the action of the unsaturated polyester and the curing agent, so that the occurrence of layering is avoided.
And S15, integrally pouring impervious gravel concrete 11 on the construction part on the ground.
S16, painting the waterproof mortar 12 on the construction part of the wall surface.
Preferably, the waterproof mortar 12 comprises, in parts by weight: 380 and 420 parts of Portland cement; 560 and 620 parts of sand; 1-3 parts of a dispersant; 1-3 parts of a water reducing agent; 0.5-1 part of a water repellent; 5-8 parts of cyanoethyl cellulose; 10-20 parts of polymer rubber powder. The above raw material components are commercially available. For example, the polymer glue powder is ethylene-vinyl acetate copolymer, and the water repellent is water repellent produced by Decarbox corporation. The waterproof mortar has good water resistance and abrasion resistance.
Example 2
The device obtained by the design can basically meet the waterproof requirement of the elevator shaft, but the designer further improves the device according to the aim of further improving the function of the elevator shaft. For a brief description, the corresponding contents in embodiment 1 can be referred to where this embodiment is not mentioned.
Referring to fig. 4 and 5, when the waterproof roll 9 is applied, the waterproof roll 9 on the wall surface is easily slid due to the influence of gravity. In this embodiment, in step S14, a plurality of reinforcing members 40 are additionally provided at intervals in the portion of the waterproof roll 9 on the wall surface. The reinforcing member 40 includes a chuck 41 embedded in the waterproof mortar 12 and two catches 42 penetrating the waterproof roll 9 into the repair mortar 4. The opposite sides of the two catches 42 of the reinforcement member 40 are provided with interengaging splines. The rack has a plurality of trapezoidal teeth arranged at intervals. The contact area between the reinforcing member 40 and the repair mortar 4 is increased through the mutual meshing of the racks on the two clamping feet 42, and the stability is better.
Furthermore, the two clamping legs 42 are both provided with openings 421 for allowing the repair mortar to enter. Preferably, the rack has openings 421 at the intervals between two adjacent teeth. The existence of the opening 421 facilitates the repair mortar 4 to penetrate into the gap between the two clamping legs 42, thereby further improving the bonding force between the reinforcing member 40 and the repair mortar 4.
Further, the two locking legs 42 are substantially semi-cylindrical, and the two locking legs 42 enclose a cylinder. The outer walls of the two clamping feet 42 are provided with semi-annular elastic bulges 43. The elastic projection 43 abuts on the side of the waterproofing membrane 9 close to the repair mortar 4. In the construction process, after the repair mortar 4 is painted, the waterproof roll 9 with the through hole is adhered, the reinforcing member 40 is nailed into the through hole in the waterproof roll 9 and then enters the repair mortar 4, and the reinforcing member 40 is fastened in the repair mortar. In this embodiment, the reinforcing member 40 may be made of stainless steel, and the elastic protrusion 43 may be a steel sheet welded to the outer wall of the locking leg 42. Furthermore, the inserting surface of the steel sheet is a conical surface, so that the steel sheet can be conveniently inserted into the repair mortar 4, and an anchoring effect is formed on the waterproof coiled material 9.
Example 3
The device obtained by the design can basically meet the waterproof requirement of the elevator shaft, but the designer further improves the device according to the aim of further improving the function of the elevator shaft. For a brief description, the corresponding contents in embodiment 1 can be referred to where this embodiment is not mentioned.
Referring to fig. 6, in the present embodiment, in step S16, a layer of waterproof mortar is poured, then the polyurethane foam aluminum plate 50 is laid, and then the waterproof mortar is painted on the polyurethane foam aluminum plate 50.
Further, the urethane foam aluminum plate 50 has a bowl-shaped convex portion 51, and the bowl-shaped convex portion 51 protrudes inward. The bowl-shaped protrusion 51 is provided with at least one through hole 52. The through-hole 52 facilitates the entry of waterproof mortar so that the waterproof mortar is filled in the convex space of the bowl-shaped convex portion 51. Further, the polyurethane foam aluminum plate 50 is provided with a plurality of bowl-shaped convex parts 51 arranged at intervals, the diameter of each bowl-shaped convex part 51 is 10-15 mm, and the distance between every two adjacent bowl-shaped convex parts 51 is 60-80 mm.
The polyurethane foamed aluminum plate 50 is a composite material of polyurethane and foamed aluminum, is formed by filling polyurethane in pores of the foamed aluminum, and has good energy absorption, shock resistance, pressure resistance, water resistance, damping, vibration absorption and other properties. Because in the elevartor shaft, easily cause more frequent vibrations because of the operation of elevator, the waterproof construction of elevartor shaft easily produces the fracture because of vibrations. According to the invention, the polyurethane foam aluminum plate 50 is arranged on the wall surface, so that the vibration can be effectively absorbed, the waterproof structure can be effectively protected, and the water leakage caused by dislocation, displacement or settlement and pull cracking in installation and construction can be responded. Set up bowl-shaped bellying 51 on polyurethane foam aluminum plate 50, can be favorable to carrying out the stress dispersion, the uneven and stress concentration phenomenon of atress can be reduced to the polyurethane foam aluminum plate of dysmorphism, avoids flat plate body compression fracture, and can effectively resist the waterproof structure destruction that the aversion caused.
Further, both the upper and lower surfaces of the urethane foam aluminum plate 50 are provided with the slots 53, and the slots 53 on the upper surface and the slots 53 on the lower surface are staggered from each other. The upper surface and the lower surface of the polyurethane foam aluminum plate 50 are provided with the slots 53, so that the mortar on the two surfaces of the polyurethane foam aluminum plate 50 is locked without cracking and falling, cracking is avoided, and the polyurethane foam aluminum plate 50 and the mortar form an integrated structure. And the grooves of the upper surface and the grooves of the lower surface are distributed in a staggered manner, so that the polyurethane foam aluminum plate 50 has stronger tensile property. The distance between two adjacent slots 53 is less than or equal to 60 mm. The larger the pitch, the smaller the number of slots 53, and conversely, the smaller the pitch, the greater the number of slots 53. The distance is less than or equal to 60mm, so that enough slots 53 can be ensured, the tensile strength is high, and the phenomenon that the polyurethane foam aluminum plate 50 is easy to break due to the excessive slots 53 is effectively avoided.
Further, in the present embodiment, the open groove 53 is opened in the length direction of the aluminum urethane foam plate 50, and the plurality of open grooves 53 are provided at intervals in the width direction of the aluminum urethane foam plate 50. The shape of the slot 53 is dovetail, "T" -shaped, "W" -shaped, etc., and preferably the shape of the slot 53 is "T" -shaped, as shown in FIG. 6. The T-shaped groove can form a larger contact area with the waterproof mortar, and the tensile strength is better.
Furthermore, a limiting groove 54 is formed on the side wall of the open groove 53. The cross-section of the retention groove 54 is preferably triangular. The arrangement of the limiting groove 54 enables the waterproof mortar to flow into the limiting groove 54, so that the bonding strength between the polyurethane foam aluminum plate 50 and the waterproof mortar is further enhanced, and the stability is improved.
The polyurethane foam aluminum plate can be purchased as a commercial product, and can also be prepared by the following steps: placing a foamed aluminum plate with a specific shape into a closed container, pouring a polyurethane foaming material (polyether triol, a foaming agent, a catalyst, a foam stabilizer and toluene diisocyanate), sealing, pressurizing to 0.6-0.8M, and foaming. The feeding ratio of the polyurethane foaming material to the foamed aluminum plate is 0.1-0.2 g/cm3. Under the condition, the polyurethane can be fully filled in the foamIn the pores of the aluminum plate. It is understood that the polyurethane foamed aluminum plate in this embodiment may be formed into the bowl-shaped protrusion by stamping or directly using the foamed aluminum plate having the bowl-shaped protrusion.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (6)
1. A construction method of a repair system for leakage water of an elevator shaft is characterized by comprising the following steps:
s1, removing accumulated water in the foundation pit;
s2, removing the material layers of the foundation pit bottom plate and the wall body to the concrete structure layer to form a construction area;
s3, removing rust of the steel members pre-buried in the foundation pit;
s4, brushing an anti-rust primer on the surface of the steel member;
s5, forming a V-shaped groove at the internal corner of the construction area;
s6, coating interface waterproofing agent on the surface of the construction area including the V-shaped groove;
s7, plugging the V-shaped groove by using waterproof sealant;
s8, brushing repair mortar on the whole construction area;
s9, integrally brushing a polymer cement-based rigid waterproof coating;
s10, brushing polymer cement-based flexible waterproof paint on the whole;
s11, polyester cloth is additionally arranged at the internal corner part of the construction area and the embedded part for fixing the elevator;
s12, integrally brushing polymer cement-based flexible waterproof paint;
s13, brushing the polyurethane waterproof paint on the whole;
s14, adhering a waterproof roll on the polyurethane waterproof coating of the step S13, wherein the waterproof roll comprises a first modified asphalt self-adhesive waterproof roll layer, a basalt fiber reinforced layer and a second modified asphalt self-adhesive waterproof roll layer which are sequentially arranged;
the preparation method of the waterproof roll comprises the following steps:
mixing 8-10 parts by weight of cyanoethyl cellulose, 2-3 parts by weight of polydimethylsiloxane, 90 parts by weight of bisphenol A type unsaturated polyester and 0.5-1 part by weight of isocyanate curing agent to obtain a mixed solution;
spraying the mixed liquid on a layer of modified asphalt self-adhesive waterproof coiled material, then laying a basalt fiber chopped strand mat, curing for 30-40 min, then spraying the mixed liquid on the basalt fiber chopped strand mat to form a basalt fiber reinforced layer, then adhering a layer of modified asphalt self-adhesive waterproof coiled material on the basalt fiber reinforced layer, and curing for 10-12 min;
s15, integrally pouring impervious gravel concrete on the construction part on the ground;
and S16, painting waterproof mortar on the construction part of the wall surface.
2. The method of repairing a leakage water in an elevator shaft according to claim 1, wherein in step S16, the waterproof mortar is applied to the aluminum plate, and then a polyurethane foam aluminum plate is applied.
3. The method according to claim 2, wherein the urethane foam aluminum plate has a bowl-shaped protrusion, the bowl-shaped protrusion protrudes inward, and the bowl-shaped protrusion has at least one through hole.
4. The method of repairing a leakage water elevator shaft according to claim 3, wherein said urethane foam aluminum plate has grooves formed in both upper and lower surfaces thereof, and the grooves formed in the upper surface and the grooves formed in the lower surface are offset from each other.
5. The method for repairing a leakage water in an elevator shaft according to claim 1, wherein in step S14, a reinforcing member is spaced apart from a portion of the waterproof coil on the wall surface, the reinforcing member includes a clip embedded in the waterproof mortar and two retaining legs penetrating through the waterproof coil and entering the repair mortar, and the two retaining legs have engaging racks on opposite surfaces thereof.
6. The method according to claim 5, wherein the two legs are each provided with an opening for the entry of a repair mortar.
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| CN111101976A (en) * | 2019-12-03 | 2020-05-05 | 国网冀北电力有限公司唐山供电公司 | Method for treating concrete cracking, damage and water leakage of cable tunnel of transformer substation |
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| JPS512228A (en) * | 1974-06-27 | 1976-01-09 | Nippon Tenkazai Kogyo Kk | KURATSUKUNO HOSHUHOHO |
| CN101649624B (en) * | 2009-07-13 | 2011-06-08 | 河南省绿韵建材有限公司 | Construction method for governing basement leakage |
| KR101188742B1 (en) * | 2009-12-07 | 2012-10-10 | (주)수향방수 | A Method for Waterproofing and Repairing of Crack in Structure |
| CN204826464U (en) * | 2015-02-15 | 2015-12-02 | 海南红杉科创实业有限公司 | Waterproof construction of parapet |
| CN205935437U (en) * | 2016-05-31 | 2017-02-08 | 湖南大学设计研究院有限公司 | Parapet wall body structure |
| CN106760598A (en) * | 2016-12-14 | 2017-05-31 | 四川省爱馨佳建筑装饰工程有限公司 | Out-wall crack repairs structure |
| CN206352400U (en) * | 2016-12-16 | 2017-07-25 | 天津东方雨虹防水工程有限公司 | Positively fixed type parapet of roofing position waterproof modular repair structure |
| CN107190844B (en) * | 2017-06-23 | 2019-05-10 | 河海大学 | The waterproof and water drainage system and construction method of a kind of basement bottom board and exterior wall |
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2018
- 2018-06-30 CN CN201810719274.4A patent/CN108868187B/en active Active
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