CN104929155A - Hermetically sealing waterproof construction method for basement - Google Patents
Hermetically sealing waterproof construction method for basement Download PDFInfo
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- CN104929155A CN104929155A CN201510379703.4A CN201510379703A CN104929155A CN 104929155 A CN104929155 A CN 104929155A CN 201510379703 A CN201510379703 A CN 201510379703A CN 104929155 A CN104929155 A CN 104929155A
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Abstract
The present invention discloses a hermetically sealing waterproof construction method for a basement, and relates to the field of building waterproof construction. The method comprises the steps of: successively performing construction of waterproof materials to a base plate, side walls and a top plate for slope excavation underground construction after concrete cushion, the side walls and the top plate are completed, then making waterproof protective layers to prevent waterproof layers from being destroyed when assembling reinforcement subsequently, and finally performing waterproof construction of the top plate. A four-side surrounded waterproof coiled material layer is formed in the basement, every node and seaming positions are ensured to be sealed and firmly bonded by adoption of the hermetically sealing technology, the hermetically sealing waterproof effect is achieved, and leakage is completely prevented.
Description
Technical field
The present invention relates to buildings waterproof construction field, especially relate to the hermetically sealed waterproof construction method of basement.
Background technology
Although the waterproofing budget of basement only accounts for a little part for construction budget, its effect is but extremely huge.If do not carry out building waterproof process, basement meeting seepage, that causes space cannot use or occur that calamity is caved in, and as subway, culvert, civil air defense constructions and installations etc. cannot use, thus brings massive losses.Along with the high speed development of infrastructure cause, the development & application of construction waterproofing engineering technology and various waterproof new material, new technology also continues to bring out.But current waterproofing system still exists some problems, cause waterproof failure, concrete reason has:
1, the waterproof effect of waterproof roll is bad
First show that the requirement of waterproof roll to formation level is high, if base surface out-of-flatness or peeling, dusting, moisture content are too high, directly can affect the bond effect of coiled material and basic unit, cause coil waterproof layer to produce bulging alice phenomenon.Next shows that the adhesion stress of waterproof roll and formation level goes up not, and general waterproof roll and cast-in-situ concrete base plate only have physics mortise and tenon active force, easily cause the bonding failure of basal plane and coiled material, goes here and there water drainage between generating layer.Be that the common waterproof roll in market exists the insecure problem of edge fit again, as adopted welded lap, easily occur solder skip, rosin joint, crossing weldering phenomenon; Gluing overlap joint, then adhesion strength is low, easily departs from; Adopt hot melt to overlap, heating temperature is not easily control, and adhesion strength is uneven.
2, the process of position of joints
In the waterproof construction process of coiled material, when run into basal plane has the position of joints such as negative and positive angle, constuction joint, deformation joint, ater-casting, wall pipe, pile crown, drain gully time, all there is certain difference in height in the connection transition position of these position of joints and basal plane, if lay coiled material to carry out waterproof, due to thickness and the elasticity of coiled material self, then be difficult to the connection transition position of coiled material at special-shaped part and basal plane completely closely to be fitted, bring leak, the hidden danger of water of leaping up; If adopt traditional polyurethane water-proof paint, polymer waterproof coating material, hot melt ointment etc. to smear Nodes, there will be water-repellent paint and all kinds of material bad adhesion, moist, moisture is surperficial cannot bond, and these coating are incompatible with large face waterproof roll material,, there is very big percolating water hidden danger in easy disengaging layering.
3, the particularity of side wall, the construction of engineering end face in underground construction
In the water proof anti-seepage construction of tunnel, subway basement, shed deckhead, civil air defense constructions and installations, dykes and dams culverts and water gates sidewall or end face, the waterproof roll that paving is common, only there is physical absorption and mortise and tenon effect in itself and formation level, under the effect of the gravity of waterproof roll self, easily cause coming off of coiled material, make waterproof failure.Existing method arranges suspender belt on coiled material, utilizes suspender belt to be fastened on the top in tunnel, then pour into a mould secondary lining concrete, but make the structure of coiled material become complicated like this, and construction is also not easy.
Therefore, the construction of waterproof layer difficulty of current tunnel, subway basement end face or sidewall is very large, and waterproofing course is also easily damaged, causes channeling water drainage to occur.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, a kind of hermetically sealed waterproof construction method is provided, the method is for the construction characteristic of side wall and end face, the technology that have employed compound nailing fixes the bonding that waterproof roll guarantees large area coiled material, during construction, successively to side wall, top board carries out the paving of waterproofing materials, then doing fish tail and waterproof layer avoids waterproofing course to be damaged when follow-up assembling reinforcement, carry out the waterproof construction of top board again, thus the waterproof roll layer of completely encircle is formed at basement, and adopt hermetic technology to guarantee each node, the seamless combination of seam crossing, realize hermetically sealed waterproof, stop the waterproof effect of seepage.
To achieve these goals, the technical solution used in the present invention is as follows:
The hermetically sealed waterproof construction method of basement, is put slope excavation underground construction after concrete cushion and side wall, top board are carried out, carries out the method for waterproof construction, it is characterized in that constructing by following operation:
(1) basal plane process: clear up the foreign material on basal plane to be onstructed;
(2) waterproof of base plate: the anti-float anchor rod, the pile crown class irregularity node that are provided with base plate basal plane, does node waterproof pretreatment by sealing compound; For cushion cap, sump, the regular position of joints of grade beam ditch class, and at the inner corner trim place of base plate and side wall, waterproof roll is adopted to do enhancement Layer process; Then large area paving waterproof roll, unnecessary waterproof roll will turn over paving on side wall in the corner of base plate and side wall; Then at anti-float anchor rod, pile crown class irregularity Nodes, do node waterproof by sealing compound and strengthen process;
(3) waterproof of side wall: the tubing irregularity node through walls be provided with side wall, does node pretreatment by sealing compound; For constuction joint, ater-casting, the whole position of deformation joint isotactic, and at the external corner place of base plate and top board, waterproof roll is adopted to do enhancement Layer process; Then large area paving waterproof roll, and overlap with the waterproof roll turned over from base plate, in the corner of side wall and top board, unnecessary waterproof roll is turned down paving on top board; After waterproof roll has been laid, by sealing compound, node waterproof is done to tubing irregularity node through walls and strengthen process;
(4) fish tail and waterproof layer is done: in side wall and waterproof slab coiled material surface brushing cement mortar, make watertight interface topping, the thickness of topping is 3mm-10mm;
(5) waterproof of top board: the tubing irregularity Nodes through walls be provided with on top board basal plane, does node waterproof pretreatment by sealing compound; Then paving large area waterproof roll on basal plane, and overlap with the waterproof roll turned over from side wall; Waterproof roll has laid the rear tubing irregularity node through walls be provided with top board basal plane, does node waterproof strengthen process by sealing compound;
(6) for the artificial backfill project of top board, in waterproof roofing coiled material surface brushing cement mortar, as watertight interface topping, the thickness of separation layer is 3mm-5mm;
Described waterproof roll be can with the waterproof roll of cast-in-situ concrete generation chemical crosslink reaction and the effect of physics mortise and tenon, described waterproof sealing cream can carry out with cement or concrete the waterproof sealing cream that bonding worked in coordination with by chemical crosslinking and physics mortise and tenon.
Waterproof roll of the present invention be can with cast-in-situ concrete generation chemical crosslink reaction and the effect of physics mortise and tenon, this waterproof roll adopts the multilayer material with the modification sealant layer of reactivity, high molecular sheet sheet material layers and fibre structure topping to be composited.The applicant can be used to apply for and the Chinese patent of having obtained the authorization on October 9th, 2009, title: carry out the waterproof roll that bonding worked in coordination with by chemical crosslinking and physics mortise and tenon with concrete, waterproof roll in number of patent application 200910114456.X, the composition namely adopting pitch to mix with functional aid, filler, thickener and water is made.
Sealing compound of the present invention be commercial type can carry out with cement or concrete the waterproof sealing cream that bonding worked in coordination with by chemical crosslinking and physics mortise and tenon.It can with the various material interfacial adhesion such as metal, plastics, pottery, rubber, concrete, waterproof roll, also should be paste state, facade brushing is not trickled simultaneously, easy film forming.The Chinese patent application that the applicant submits on November 10th, 2012 can be used, title: modified emulsifying asphalt waterproof sealing cream and preparation method thereof, application number: the sealing compound in CN201210446557.9, the composition namely adopting rubber latex to mix with functional aid, filler, thickener and water is made.
The Chinese patent application that described sealing compound can also use the applicant to submit to on 07 03rd, 2013, title: with the waterproof sealing cream of cement generation chemical crosslinking and physics mortise and tenon, number of patent application: 201310276909.5, namely adopts the composition of synthetic rubber latex, mulseal, functional aid, thickener, filler, plasticizing agent, water mixing to make.
The Chinese patent application that described sealing compound can also adopt the applicant's 10 days years in November, 2012 to submit to, title: reaction bonded type node sealing compound and preparation method thereof, number of patent application: 201210446551.1 i.e. pitch, modifier, emulsifier, crosslinking agent, thickener, reinforcing agent and water.
Further, in construction works, when needing when basal plane there being concavo-convex place to repair, be that 2-2.5:1 is mixed into cement paste by cement and water according to weight ratio, the waterproof sealing cream then adding cement paste gross weight 3-8% is repaired as healant.
Further; in described step (3); when doing side wall fish tail and waterproof layer; side wall waterproof roll external coating weight ratio be 1:1-1:3 cement mortar formed topping; the thickness of topping is: side wall 50cm-100cm At The Height from base plate smears 8-10mm solid cement mortar, and the above side wall of 50cm-100cm height smears 3mm-5mm solid cement mortar.
Further, in described step (3), when doing waterproof slab topping, the cement mortar being 1:1-1:3 in waterproof slab coiled material surface brushing weight ratio forms topping, and the thickness of topping is 3mm-5mm.
In the present invention, on side wall during large area paving waterproof roll, mechanical Fixing Method, dry sticky temporary fixed method or dry viscose glue adhesive tape fixation temporary fixed waterproof roll on side wall can be adopted.
When described mechanical Fixing Method refers to and often lays one section or one piece of double-sided adhesive waterproof coiled material, adopt compound nailing method, pad sealing together is first stained with on waterproof roll surface, nail injected sealing mat and waterproof roll with ail gun again and be fixed on levelling after space enclosing structure on, make waterproof roll can effectively be fixed on side wall or engineering end face, then smear sealing compound at nailing position and cover nailing.
Described dry sticky temporary fixed method refers to be first 1:1 mix after do a basal plane brushing with water according to volume ratio by sealing compound, the sealing compound coating then after solid is done spreading large area waterproof roll.
Described dry viscose glue adhesive tape fixation refers to and adopts wet-laid process by the paving of double-sided adhesive waterproof coiled material adhesive tape in the space enclosing structure after levelling, more dry sticky large face waterproof roll bonds with tacky on two sides adhesive tape and fixes.
Further, the pretreated method of position of joints waterproof of the present invention is: before large area paving waterproof roll, with hairbrush, waterproof sealing cream uniform application is connected transition position in position of joints and basal plane, make the connection transition position of position of joints and basal plane be completely sealed covering.
Further, the method of position of joints waterproof reinforced of the present invention process is: after large area paving waterproof roll, with hairbrush by waterproof sealing cream uniform application in position of joints and basal plane, waterproof roll connect transition position, make position of joints and basal plane, the connection transition position of waterproof roll be completely sealed covering.
In order to ensure the paving quality of waterproof roll, before doing fish tail and waterproof layer, check that all coiled material faces are with or without the situation of tearing, piercing through, bubble, overlap joint are bad, clean out rejected region during repairing, carry out enhanced leaktightness repairing by sealing compound; Have bubble position to cut exhaust, and on rejected region, add a cover size be that the waterproof roll of 100-150 ㎜ × 100-150mm is made extra play or fills up by sealing compound.
Method of the present invention is applicable to the application carrying out waterproof construction in subway, basement, garage end face, bomb shelter, tunnel, all kinds of engineering of dykes and dams culverts and water gates.
Construction method of the present invention can realize hermetic principle: between waterproof roll and basal plane to be onstructed, between node encapsulant and position of joints, the lap-joint of waterproofing materials, corner class Nodes, can good bond be sealed between waterproofing materials and node encapsulant.
Waterproof roll and side wall to be onstructed, secure seal can be realized bonding: add special modifier in the present invention's waterproof roll used (see the authorized Chinese patent of the applicant between end face, application number 200910114456.X), by synergy (the Chemical Bonding andPhysical Crosslinking Synergism of chemical crosslinking and physics mortise and tenon, be called for short CPS), coiled material just can be made at cement, wriggle in the basal plane process of setting such as concrete and penetrate into cement gel and concrete pore, form netted mortise and tenon, and with cement related compounds generation chemical reaction, form chemical crosslinking effect, play CPS effect, waterproof roll and concrete is made to reach the adhesive effect that as closely linked as flesh and blood.It is with the process of concrete binding, not only there is the creep crack resistance of self-adhesive coiled material, self-healing, wet bonding, the performance of anti-channeling water-based, more highlight its unique advantage in concrete interface bonding, it forms " IPN grid type " interfacial structure between waterproof roll and concrete, thus reach combination closely, firmly, irreversible as closely linked as flesh and blood bond effect, thoroughly solve modified bituminous pitch coiled material and basal plane adhesion stress is large not, adhesion stress is not lasting, problem easily affected by environment, achieve coiled material and basal plane formed bond irreversible, the Waterproof structural course of not impaired integral type, " skin-type " waterproof idea is made to obtain perfect realization.
Node encapsulant is with can to realize secure seal between position of joints bonding: because node encapsulant sealing compound is for raw material with synthetic rubber latex and modified rubber mulseal, add functional aid, by the coupled action of functional aid, synthetic rubber molecule and asphaltene molecule coupling is made to become to have the large molecule of reactivity, when this large molecule contacts with cement or concrete surface, rubber molecule and asphaltene molecule and basal plane form physical absorption, and there is large molecule and the suction-operated of basal plane generation chemical bonding of reactivity, produce very strong chemical interactions, therefore the adhesion stress of waterproof sealing cream and basal plane is very strong, be not easy the impact being subject to extraneous factor, they can also with a variety of material as plastics, metal carries out effectively bonding, in addition, waterproof sealing cream is water-based, therefore can construct at the basal plane of humidity.The present invention carries out pretreatment to node and strengthens process twice treatment process, guarantees the water-tight of node.
It is bonding that seam crossing between waterproof roll can realize secure seal: the seam crossing between waterproofing materials is one of weak link of waterproof, easily produce at seam crossing with traditional waterproof roll and come off, and adopt the waterproof roll that can play a common chemical crosslink reaction and the synergistic reaction bonded sealant layer of physics mortise and tenon with concrete or cement gel, at cement, wriggle in concrete setting process and penetrate into cement gel and concrete pore, reach and combine closely, firmly, irreversible as closely linked as flesh and blood bond effect, its bonding force is large, not only there are physical absorption and mortise and tenon effect, and produce chemical bonding effect at the mortise and tenon position of going down to the grass-roots units, two kinds of effects of mortise and tenon and chemical crosslinking are worked in coordination with carry out, make bonding more firm.Even if coiled material top layer is destroyed, the interface of bonding basal plane also can not be impaired and produce channeling water drainage.Can reach that waterproofing course is combined closely with concrete, firmly effect.
Can secure seal be realized between waterproof roll with node encapsulant bonding: the raw material that large area waterproof roll and node encapsulant sealing compound adopt are same materials, possess good compatibility, therefore can ensure that both secure seal merge.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, the hermetically sealed waterproof construction method constructing operation of the present invention is simple, easily grasps, and requires low to basal plane and site environment.During construction; successively base plate, side wall are carried out to the paving of waterproofing materials; then doing fish tail and waterproof layer avoids waterproofing course to be damaged when follow-up assembling reinforcement; carry out the waterproof construction of top board again; thus the waterproof roll layer of completely encircle is formed at basement; the present invention not only focuses on the effect of large area waterproof, and the node also for each waterproof weakness adopts effective measures leak stopping, can realize hermetically sealed, omnibearing waterproof, stop the waterproof effect of seepage completely.
2, the present invention adopt the present inventor to study can with cement, concrete plays chemical crosslink reaction and the synergistic waterproofing materials of physics mortise and tenon and node encapsulant jointly, can not only with basal plane generation physical absorption and mortise and tenon effect, and can with the suction-operated of basal plane generation chemical bonding, produce very strong chemical interactions, form very strong combination closely, firmly, irreversible as closely linked as flesh and blood bond effect, thus can realize between waterproof roll and basal plane to be onstructed, between node encapsulant and position of joints, waterproof roll seam crossing, seamless combination between waterproof roll and node encapsulant, guarantee waterproof effect.
3, the present invention's healant that washcoat adopts in work progress is that 2-2.5:1 is mixed into cement paste by cement and water according to weight ratio, then add the sealing compound configuration of cement paste gross weight 3-8% and make, compare tradition cement mortar washcoat, do not need to wait for the healant thoroughly solid construction just can carrying out next step, can the reduction of erection time, be particularly suitable for duration tight engineering and use.
4, the present invention in the waterproof roll paving process of side wall in conjunction with compound nailing technology, dry sticky temporary fixed method or dry viscose glue adhesive tape fixation fix waterproof roll, overcome the impact of waterproof roll self gravitation, waterproof roll can be reached and fixedly secure, the effective and convenient construction of paving.
5, construction method of the present invention is after waterproof construction; waterproofing course does topping; avoid the destruction being subject to later stage crossed construction operation appearance; relative to the thick C20 pea gravel concreten of laying 50mm; the construction topping of this invention can not only ensure fine waterproofing protection effect; substantially reduce duration cost, largely saving construction cost cost simultaneously.
Detailed description of the invention
The hermetically sealed waterproof construction method of what the present invention will protect is basement; successively base plate, side wall are carried out to the paving of waterproofing materials; then doing fish tail and waterproof layer avoids waterproofing course to be damaged when follow-up assembling reinforcement; and then carry out the waterproof construction of top board; the waterproof roll layer of completely encircle is formed at basement; the present invention not only focuses on the effect of large area waterproof; node also for each waterproof weakness adopts effective measures leak stopping, can realize hermetically sealed, omnibearing waterproof, stop the waterproof effect of seepage completely.Below by way of specific embodiment, the invention will be further described.
Embodiment 1
The construction in tunnel, Nanning, in November, 2013 constructs, put slope excavation underground construction after concrete cushion and protection wall are carried out, hermetic waterproof construction method is adopted to construct, the waterproof roll used is applied for and the Chinese patent product of having obtained the authorization on October 9th, 2009 for the applicant, the waterproof roll in number of patent application 200910114456.X; The Chinese patent application that the node sealing compound used is submitted on November 10th, 2012 for the applicant, application number is the sealing compound in CN201210446557.9.Construct according to following sequence of construction:
The process of basal plane: concrete surface is repaired smooth, cleaning rubbish also waters water-wet, and negative and positive angle place cement mortar smears into obtuse angle or fillet; The basal plane healant adopted is that 2:1 is mixed into cement paste by cement and water according to weight ratio, and the sealing compound then adding cement paste gross weight 3% configures and makes.
The waterproof of base plate: the anti-float anchor rod, the pile crown class irregularity node that are provided with base plate basal plane, make it be completely covered in the transition position that connects of position of joints and basal plane sealing compound uniform application with hairbrush; Then large area sky paving waterproof roll, when chance wears anti-float anchor rod, pile crown class irregularity position of joints, empty paving waterproof roll, to position of joints edge, unnecessary waterproof roll will turn over paving on side wall in the corner of base plate and side wall; Lay rear wall pipe, pile crown class irregularity node that base plate basal plane is provided with, again made it be completely sealed covering in the transition position that connects of position of joints and basal plane sealing compound uniform application with hairbrush; For cushion cap, sump, the whole position of grade beam ditch isotactic, and at the inner corner trim place of base plate and side wall, the wide waterproof roll of 300mm is adopted to strengthen process;
The waterproof of side wall: the tubing irregularity node through walls be provided with side wall, connects transition position by sealing compound uniform application in position of joints and basal plane with hairbrush, makes it be completely covered; Then large area paving waterproof roll, and overlap with the waterproof roll turned over from base plate, when chance wears anti-float anchor rod, pile crown class irregularity position of joints, unnecessary waterproof roll, to position of joints edge, is turned down paving on top board in the corner of side wall and top board by paving waterproof roll; Lay the rear tubing irregularity node through walls that side wall is provided with, again made it be completely sealed covering in the transition position that connects of position of joints and basal plane sealing compound uniform application with hairbrush; For constuction joint, ater-casting, the whole position of deformation joint isotactic, and at the external corner place of base plate and top board, the wide waterproof roll of 300mm is adopted to strengthen process;
Check that all coiled material faces are with or without the situation of tearing, piercing through, bubble, overlap joint are bad, clean out rejected region during repairing, carry out enhanced leaktightness repairing by sealing compound; Have bubble position to cut exhaust, and on rejected region, add a cover size be that the waterproof roll of 100-150 ㎜ × 100-150mm is made extra play or fills up by sealing compound.
Do fish tail and waterproof layer: be 1:1 cement mortar in side wall waterproof roll external coating weight ratio, as watertight interface topping, the thickness of topping is: side wall 50cm At The Height from base plate smears 8mm-9mm solid cement mortar, and the above side wall of 50cm height smears 3mm-4mm solid cement mortar; Be 1:3 cement mortar in waterproof slab coiled material surface brushing weight ratio, as watertight interface topping, the thickness of topping is 3mm-4mm;
The waterproof of top board: do basal plane process on top board basal plane, uneven part is repaired with healant, the tubing irregularity Nodes through walls that top board basal plane is provided with, connects transition position by sealing compound uniform application in position of joints and basal plane with hairbrush, connection transition position is completely covered; Then paving large area waterproof roll on basal plane, and overlap with the waterproof roll turned over from side wall, when meeting tubing irregularity position of joints through walls, paving waterproof roll is to position of joints edge; Lay the rear tubing irregularity node through walls that top board basal plane is provided with, with hairbrush, sealing compound uniform application has been connected transition position in position of joints and basal plane, do joint strengthening process, transition position is completely covered;
Wherein, above-mentioned specific requirement of smearing sealing compound is brushing 2 times, and gross thickness controls at 1-3mm, and the width that basal plane smears sealing compound is 60mm, and it is highly 30mm that facade is smeared.
For the artificial backfill project of top board, in waterproof roofing coiled material surface brushing 1:3 cement mortar, as watertight interface topping, the thickness of separation layer is 3mm-5mm.
This project waterproof construction is so far complete, and tests through the rainy season of two, does not find that there is seepage and seminess.
Embodiment 2
The construction in tunnel, Guangxi, in May, 2014 constructs, put slope excavation underground construction after concrete cushion and protection wall are carried out, the hermetic waterproof construction method of basement is adopted to construct, the waterproof roll used is applied for and the Chinese patent product of having obtained the authorization on October 9th, 2009 for the applicant, the waterproof roll in number of patent application 200910114456.X; The Chinese patent application that the node sealing compound used is submitted on July 3rd, 2013 for the applicant, application number is the sealing compound in CN201310276909.5.
The process of basal plane: concrete surface is repaired smooth, cleaning rubbish also waters water-wet, and negative and positive angle place cement mortar smears into obtuse angle or fillet; The healant adopted is that 2.5:1 is mixed into cement paste by cement and water according to weight ratio, and the sealing compound then adding cement paste gross weight 8% configures and makes.
The waterproof of base plate: the tubing irregularity node through walls be provided with side wall, connects transition position by sealing compound uniform application in position of joints and basal plane with hairbrush, makes it be completely covered; Then large area paving waterproof roll, and overlap with the waterproof roll turned over from base plate, when chance wears anti-float anchor rod, pile crown class irregularity position of joints, unnecessary waterproof roll, to position of joints edge, is turned down paving on top board in the corner of side wall and top board by paving waterproof roll; Lay the rear tubing irregularity node through walls that side wall is provided with, again made it be completely sealed covering in the transition position that connects of position of joints and basal plane sealing compound uniform application with hairbrush; For constuction joint, ater-casting, the whole position of deformation joint isotactic, and at the external corner place of base plate and top board, the wide waterproof roll of 800mm is adopted to strengthen process;
The waterproof of side wall: the tubing irregularity node through walls be provided with side wall, connects transition position by sealing compound uniform application in position of joints and basal plane with hairbrush, makes it be completely covered; Then large area paving waterproof roll, and overlap with the waterproof roll turned over from base plate, when chance wears anti-float anchor rod, pile crown class irregularity position of joints, unnecessary waterproof roll, to position of joints edge, is turned down paving on top board in the corner of side wall and top board by paving waterproof roll; Lay the rear tubing irregularity node through walls that side wall is provided with, again made it be completely sealed covering in the transition position that connects of position of joints and basal plane sealing compound uniform application with hairbrush; For constuction joint, ater-casting, the whole position of deformation joint isotactic, and at the external corner place of base plate and top board, the wide waterproof roll of 1000mm is adopted to strengthen process;
Check that all coiled material faces are with or without the situation of tearing, piercing through, bubble, overlap joint are bad, clean out rejected region during repairing, carry out enhanced leaktightness repairing by sealing compound; Have bubble position to cut exhaust, and on rejected region, add a cover size be that the waterproof roll of 100-150 ㎜ × 100-150mm is made extra play or fills up by sealing compound.
Do fish tail and waterproof layer: be 1:1 cement mortar in side wall waterproof roll external coating weight ratio, as watertight interface topping, the thickness of topping is: side wall 100cm At The Height from base plate smears 9-10mm solid cement mortar, and the above side wall of 100cm height smears 4mm-5mm solid cement mortar; Be 1:3 cement mortar in waterproof slab coiled material surface brushing weight ratio, as watertight interface topping, the thickness of topping is 4mm-5mm;
The waterproof of top board: do basal plane process on top board basal plane, uneven part is repaired with healant, the tubing irregularity Nodes through walls that top board basal plane is provided with, connects transition position by sealing compound uniform application in position of joints and basal plane with hairbrush, connection transition position is completely covered; Then paving large area waterproof roll on basal plane, and overlap with the waterproof roll turned over from side wall, when meeting tubing irregularity position of joints through walls, paving waterproof roll is to position of joints edge; Lay the rear tubing irregularity node through walls that top board basal plane is provided with, with hairbrush, sealing compound uniform application has been connected transition position in position of joints and basal plane, do joint strengthening process, transition position is completely covered;
Smear the specific requirement of sealing compound for brushing 2-3 time, gross thickness controls at 1-3mm, and the width that basal plane smears sealing compound is 100mm, and it is highly 50mm that facade is smeared, and makes the connection transition position of position of joints and basal plane be completely sealed covering.
Check that all coiled material faces are with or without the situation of tearing, piercing through, bubble, overlap joint are bad, clean out rejected region during repairing, carry out enhanced leaktightness repairing by sealing compound; Have bubble position to cut exhaust, and on rejected region, add a cover size be that the waterproof roll of 100-150 ㎜ × 100-150mm is made extra play or fills up by sealing compound.
For the artificial backfill project of top board, in waterproof roofing coiled material surface brushing 1:3 cement mortar, as watertight interface topping, the thickness of separation layer is 3mm-5mm.
This project waterproof construction is so far complete, does not find that there is seepage and seminess.
Claims (10)
1. the hermetically sealed waterproof construction method of basement, is put slope excavation underground construction after concrete cushion and side wall, top board are carried out, carries out the method for waterproof construction, it is characterized in that constructing by following operation:
(1) basal plane process: clear up the foreign material on basal plane to be onstructed;
(2) waterproof of base plate: the anti-float anchor rod, the pile crown class irregularity node that are provided with base plate basal plane, does node waterproof pretreatment by sealing compound; For cushion cap, sump, the regular position of joints of grade beam ditch class, and at the inner corner trim place of base plate and side wall, waterproof roll is adopted to do enhancement Layer process; Then large area paving waterproof roll, unnecessary waterproof roll will turn over paving on side wall in the corner of base plate and side wall; Then at anti-float anchor rod, pile crown class irregularity Nodes, do node waterproof by sealing compound and strengthen process;
(3) waterproof of side wall: the tubing irregularity node through walls be provided with side wall, does node pretreatment by sealing compound; For constuction joint, ater-casting, the whole position of deformation joint isotactic, and at the external corner place of base plate and top board, waterproof roll is adopted to do enhancement Layer process; Then large area paving waterproof roll, and overlap with the waterproof roll turned over from base plate, in the corner of side wall and top board, unnecessary waterproof roll is turned down paving on top board; After waterproof roll has been laid, by sealing compound, node waterproof is done to tubing irregularity node through walls and strengthen process;
(4) fish tail and waterproof layer is done: in side wall and waterproof slab coiled material surface brushing cement mortar, make watertight interface topping, the thickness of topping is 3mm-10mm;
(5) waterproof of top board: the tubing irregularity Nodes through walls be provided with on top board basal plane, does node waterproof pretreatment by sealing compound; Then paving large area waterproof roll on basal plane, and overlap with the waterproof roll turned over from side wall; Waterproof roll has laid the rear tubing irregularity node through walls be provided with top board basal plane, does node waterproof strengthen process by sealing compound;
(6) for the artificial backfill project of top board, in waterproof roofing coiled material surface brushing cement mortar, as watertight interface topping, the thickness of separation layer is 3mm-5mm;
Described waterproof roll be can with the waterproof roll of cast-in-situ concrete generation chemical crosslink reaction and the effect of physics mortise and tenon, described waterproof sealing cream can carry out with cement or concrete the waterproof sealing cream that bonding worked in coordination with by chemical crosslinking and physics mortise and tenon.
2. according to the hermetically sealed waterproof construction method of the basement described in claim 1, it is characterized in that: when needing when basal plane there being concavo-convex place to repair, be that 2-2.5:1 is mixed into cement paste by cement and water according to weight ratio, the waterproof sealing cream then adding cement paste gross weight 3-8% is repaired as healant.
3. according to the hermetically sealed waterproof construction method of the side wall described in claim 1 or 2, engineering top board; it is characterized in that: in described step (3); when doing side wall fish tail and waterproof layer; the cement mortar being 1:1-1:3 in side wall waterproof roll external coating weight ratio forms topping; the thickness of topping is: side wall 50cm-100cm At The Height from base plate smears 8-10mm solid cement mortar, and the above side wall of 50cm-100cm height smears 3mm-5mm solid cement mortar.
4. according to the hermetically sealed waterproof construction method of the side wall described in claim 3, engineering top board; it is characterized in that: in described step (3); when doing waterproof slab topping; the cement mortar being 1:1-1:3 in waterproof slab coiled material surface brushing weight ratio forms topping, and the thickness of topping is 3mm-5mm.
5. according to the hermetically sealed waterproof construction method of the side wall described in claim 4, engineering top board, it is characterized in that: on side wall during large area paving waterproof roll, mechanical Fixing Method, dry sticky temporary fixed method or dry viscose glue adhesive tape fixation temporary fixed waterproof roll on side wall can be adopted.
6. the hermetically sealed waterproof construction method of basement according to claim 5, it is characterized in that: when described mechanical Fixing Method refers to and often lays one section or one piece of double-sided adhesive waterproof coiled material, adopt compound nailing method, pad sealing together is first stained with on waterproof roll surface, nail injected sealing mat and waterproof roll with ail gun again and be fixed on levelling after space enclosing structure on, make waterproof roll can effectively be fixed on side wall or engineering end face, then smear sealing compound at nailing position and cover nailing.
7. the hermetically sealed waterproof construction method of basement according to claim 5, it is characterized in that: described dry sticky temporary fixed method refers to be first 0.8-1.2:1 mix after do a basal plane brushing with water according to volume ratio by sealing compound, the sealing compound coating then after solid is done spreading large area waterproof roll.
8. the hermetically sealed waterproof construction method of basement according to claim 5, it is characterized in that: described dry viscose glue adhesive tape fixation refers to and adopts wet-laid process by the paving of double-sided adhesive waterproof coiled material adhesive tape in the space enclosing structure after levelling, more dry sticky large area waterproof roll bonds with tacky on two sides adhesive tape and fixes.
9. hermetically sealed waterproof construction method according to claim 5, it is characterized in that: the pretreated method of described position of joints waterproof is: before large area paving waterproof roll, with hairbrush, waterproof sealing cream uniform application is connected transition position in position of joints and basal plane, make the connection transition position of position of joints and basal plane be completely sealed covering.
10. hermetically sealed waterproof construction method according to claim 5, it is characterized in that: the method for described position of joints waterproof reinforced process is: after completing large area paving waterproof roll, with hairbrush by waterproof sealing cream uniform application in position of joints and basal plane, waterproof roll connect transition position, make position of joints and basal plane, the connection transition position of waterproof roll be completely sealed covering.
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| CN106065634A (en) * | 2016-08-08 | 2016-11-02 | 中建四局第三建筑工程有限公司 | One-level water-proof system and construction method thereof for building basement position |
| CN111042310A (en) * | 2019-12-14 | 2020-04-21 | 中冶天工集团有限公司 | Basement bottom plate structure and construction method thereof |
| CN111809751A (en) * | 2020-06-12 | 2020-10-23 | 中国二十冶集团有限公司 | Underground outdoor waterproof method |
| CN112252117A (en) * | 2020-10-16 | 2021-01-22 | 魏恒业 | Manufacturing and construction method of improved plastic track |
| CN113062351A (en) * | 2021-03-05 | 2021-07-02 | 武汉三源特种建材有限责任公司 | Full-rigid waterproof structure for underground engineering of high-speed rail station and construction method |
| CN113216632A (en) * | 2021-06-03 | 2021-08-06 | 中国电建集团四川工程有限公司 | Basement waterproof construction method |
| CN113802595A (en) * | 2021-04-07 | 2021-12-17 | 广东荔成建设集团有限公司 | Bearing platform construction process and bearing platform structure |
| CN116446542A (en) * | 2023-06-15 | 2023-07-18 | 天津市奇才防水材料工程有限公司 | Waterproof construction method for prefabricated waterproof material underground engineering |
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| CN106065634A (en) * | 2016-08-08 | 2016-11-02 | 中建四局第三建筑工程有限公司 | One-level water-proof system and construction method thereof for building basement position |
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| CN113062351A (en) * | 2021-03-05 | 2021-07-02 | 武汉三源特种建材有限责任公司 | Full-rigid waterproof structure for underground engineering of high-speed rail station and construction method |
| CN113802595A (en) * | 2021-04-07 | 2021-12-17 | 广东荔成建设集团有限公司 | Bearing platform construction process and bearing platform structure |
| CN113216632A (en) * | 2021-06-03 | 2021-08-06 | 中国电建集团四川工程有限公司 | Basement waterproof construction method |
| CN116446542A (en) * | 2023-06-15 | 2023-07-18 | 天津市奇才防水材料工程有限公司 | Waterproof construction method for prefabricated waterproof material underground engineering |
| CN116446542B (en) * | 2023-06-15 | 2023-09-08 | 天津市奇才防水材料工程有限公司 | Waterproof construction method for prefabricated waterproof material underground engineering |
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Application publication date: 20150923 |