CN114718362A - Deformation joint construction method for underground water treatment structure - Google Patents
Deformation joint construction method for underground water treatment structure Download PDFInfo
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- CN114718362A CN114718362A CN202210506890.8A CN202210506890A CN114718362A CN 114718362 A CN114718362 A CN 114718362A CN 202210506890 A CN202210506890 A CN 202210506890A CN 114718362 A CN114718362 A CN 114718362A
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- 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
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
Abstract
The invention relates to a deformation joint construction method of an underground water treatment structure, which comprises the following steps: reserving deformation joints between two adjacent groups of concrete wall plates; the method comprises the following steps that a waterstop and a plurality of groups of force transmission connecting rod assemblies are arranged along the length direction of a deformation joint, each force transmission connecting rod assembly comprises an outer sleeve and a force transmission rod capable of sliding along the inner wall of the outer sleeve, the force transmission rods and the outer sleeves are respectively and correspondingly installed on two groups of concrete wall plates, and each group of force transmission connecting rod assemblies at least comprises a first force transmission connecting rod assembly and a second force transmission connecting rod assembly which are arranged on two sides of the waterstop along the width direction of the deformation joint; and pouring concrete, and performing sealing and/or pointing and/or waterproof and/or anticorrosive treatment on two sides of the deformation joint after pouring. The force transmission connecting rod assembly arranged at the deformation joint can resist water and soil pressure, reduce transverse movement, avoid tearing of the water stop belt, and effectively improve the water seepage resistance, the seismic resistance and the deformation resistance of the structure by additionally arranging the multiple waterproof structures.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a deformation joint construction method of an underground water treatment structure.
Background
Underground water treatment structures are generally subject to deformation and cracking due to temperature changes or uneven settlement, resulting in water leakage of the structures. Therefore, the deformation joint of the common underground water treatment structure is reserved, and the water stop belt is arranged, so that the problem of water leakage caused by deformation and cracking of the structure is solved.
However, after the underground water treatment structure is constructed, the construction of external backfill of the external wall is required to be carried out and the precipitation of the foundation pit is stopped, the external backfill of the external wall and the raised underground water level can generate side thrust on the external wall of the structure and further can extrude the wall of the structure pool to cause the deformation of the structure, so the construction method of only arranging a single water stop in the deformation joint at present can cause the problem of water stop tearing due to the deformation of the structure, cause the water leakage of the deformation joint of the structure and have poor stability, shock resistance and deformation resistance of the whole structure.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem that the water stop belts arranged in the deformation joints are torn due to the fact that the structures are easy to deform and dislocated by external factors in the prior art, and provides the deformation joint construction method of the underground water treatment structure, and the underground water treatment structure has good deformation resistance and shock resistance by arranging the force transmission connecting rod assembly, so that the seepage resistance of the structures is improved; and after concrete is poured, sealing and/or pointing and/or waterproof and/or anticorrosive treatment is respectively carried out on two sides of the deformation joint, so that the seepage resistance of the structure is further improved.
In order to achieve the above object, an embodiment of the present invention provides a deformation joint construction method for an underground water treatment structure, including the following steps:
reserving a deformation joint between two adjacent groups of concrete wall plates; arranging a water stop belt at the deformation joint along the length direction of the deformation joint; a plurality of groups of force transmission connecting rod assemblies are arranged at intervals along the length direction of the deformation seam, and each force transmission connecting rod assembly comprises an outer sleeve and a force transmission rod capable of sliding along the inner wall of the outer sleeve; correspondingly installing the dowel bar and the outer sleeve on the two groups of concrete wall plates respectively, wherein one end of the dowel bar is fixed on one group of concrete wall plates, and the other end of the dowel bar is inserted into the outer sleeve on the other group of concrete wall plates; each group of force transmission connecting rod assemblies at least comprises a first force transmission connecting rod assembly and a second force transmission connecting rod assembly which are arranged on two sides of the water stop belt along the width direction of the deformation seam; and pouring concrete, and performing sealing and/or pointing and/or waterproof and/or anticorrosive treatment on two sides of the deformation joint after pouring.
Optionally, the concrete wall panel comprises a water facing surface and a soil facing surface located on the front and rear sides of the deformation joint.
The first force transmission connecting rod assembly is arranged at a first preset position close to the water-facing surface, and the second force transmission connecting rod assembly is arranged at a second preset position close to the soil-facing surface.
Optionally, the deformation joint construction method of the underground water treatment structure further comprises the following steps:
and (2) uniformly coating a lubricant on the peripheral wall of the dowel bar, and/or filling the lubricant in the outer sleeve, and plugging one end of the outer sleeve, which is far away from the dowel bar.
Optionally, the deformation joint construction method of the groundwater treatment structure further comprises the following steps:
after the water stop is installed, reinforcing steel bars are arranged on the front side and the rear side of the water stop along the width direction of the deformation joint respectively so as to reinforce the position of the water stop.
Optionally, after the water stop belt is installed, respectively filling foam plates in deformation joints on two sides of the water stop belt along the width direction of the deformation joints; and cleaning the end surfaces of the two sides of the foam board after the poured concrete meets the set strength requirement, and embedding and filling sealing filler in deformation joints at the two sides of the foam board.
Optionally, the sealing filler adopts polysulfide sealing paste, and is filled and coated for 2-3 times, wherein the interval of each time is not less than 3 h.
Optionally, after the sealing filler is filled, a waterproof coating is coated at a deformation joint on the soil facing side; and/or adopting cement mortar pointing in a deformation joint on the water-facing side, and coating an anticorrosive coating.
Optionally, the step of applying a waterproof coating to the deformation joint on the soil facing side comprises the following steps:
s101, coating an interface agent: uniformly brushing an interface agent on the concrete surface within the range of 300mm on two sides by taking the deformation joint as the center;
s102, coating polyurea waterproof paint: after the step S101 is finished, coating polyurea waterproof paint at intervals of at least 3 h;
s103, coating a cement-based permeable crystallization waterproof material: brushing a cement-based permeable crystallization waterproof material with the thickness of 2.0mm for 3 times, wherein the interval of each time is not less than 3 hours;
s104, brushing a polyurethane waterproof coating: and (3) after the step 103 is finished, brushing polyurethane waterproof paint with the thickness of 1.5mm for 3 times at an interval of 3-5 h.
Optionally, the step S102 specifically includes the following steps: coating 1mm of polyurea waterproof paint within the range of 300mm on two sides of the deformation joint; sticking mesh cloth within 200mm of both sides of the deformation joint; coating 2mm of polyurea waterproof paint within 200mm of both sides of the deformation joint; coating 2mm of polyurea waterproof paint within the range of 100mm on two sides of the deformation joint; and (3) coating non-curing coating within the range of 300mm on both sides of the deformation joint.
Optionally, the step of pointing by cement mortar in the deformation joint on the water facing side and coating the anticorrosive coating comprises the following steps:
after the sealing filler is embedded and filled, cleaning the concrete surfaces on the two sides of the deformation joint, and pointing by adopting 1:2 cement mortar within a range of 20-40mm away from the upstream surface;
brushing 1-1.5mm of elastic epoxy modified anticorrosive paint, and brushing 3-4 times at an interval of 3-5 h.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the construction steps of arranging the water stop belt, the force transmission connecting rod assembly, sealing, water proofing, corrosion resistance and the like at the deformation joint along the length direction of the deformation joint can form multiple waterproof and anti-elastic deformation guarantees, the structure can be guaranteed to have good deformation resistance, the anti-seepage performance and the anti-seismic performance of the structure can be improved, and the possibility of leakage and deformation of the deformation joint caused by temperature or uneven settlement is reduced.
2. According to the deformation joint, the force transmission connecting rod assemblies are arranged at intervals along the length direction of the deformation joint, so that water and soil pressure can be resisted, and transverse movement is reduced; the shear stress and the supporting stress of the concrete around the force transmission connecting rod assembly at the deformation joint are improved, the force transmission rod and the outer sleeve are respectively and correspondingly arranged on the two groups of concrete wall plates, and the force transmission rod can slide along the inner wall of the outer sleeve, so that the concrete can be prevented from being crushed or pulled to crack; meanwhile, the force transmission connecting rod assembly can enable two adjacent groups of concrete to be stressed together and transmit load between the two adjacent groups of concrete, so that uneven settlement caused by large local stress of the concrete is prevented, and the tank walls on two sides of the deformation joint are prevented from staggering.
3. Every group of this application biography power link assembly includes the first power link assembly and the second of being close to the position setting of upstream face and passes power link assembly, can form better water-resistant soil pressure effect at the ascending both sides concrete wall homoenergetic of movement joint thickness direction through set up the power link assembly in the wall body of waterstop both sides, avoid the unilateral to set up the pressure difference with the anti water-resistant soil of opposite side that causes, lead to the whole water-resistant soil pressure performance of structure unbalanced, appear warping and leak or seriously warp the phenomenon of tearing the waterstop.
4. This application is through following after the waterstop installation finishes both sides set up the reinforcement reinforcing bar respectively around the waterstop in the width direction of movement joint, can consolidate the position of waterstop, avoid concrete placement process to stop the position of hosepipe and take place the skew under the effect of external force, and can not play water-proof effects effectively.
5. The deformation joint coating waterproof coating on the soil facing side in the application adopts the polyurea waterproof coating with strong adhesive force, strong friction and strong hardness, can reach the deep waterproof effect and has longer protection life by brushing the polyurea waterproof coating, and can play an anticorrosive role due to components such as polyether, chain extender and the like in the polyurea waterproof coating material.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a transverse sectional view of an underground water treatment structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of a force-transmitting linkage assembly in an embodiment of the present invention.
Fig. 3 is a schematic structural view of reinforcing steel bars installed on the periphery of the water stop in the embodiment of the invention.
FIG. 4 is a schematic structural diagram of the waterproof coating coated along the deformation joint on the soil-facing surface in the embodiment of the invention.
Description of reference numerals:
100. a water-facing surface; 200. facing the soil surface; 300. a concrete panel;
1. a force-transmitting linkage assembly; 11. a dowel bar; 12. an outer sleeve; 13. a wooden plug;
101. a first force transfer linkage assembly; 102. a second force-transmitting linkage assembly;
2. a water stop; 3. a foam board;
4. reinforcing steel bars; 41. reinforcing the steel bar main body; 42. a rigid mount; 5. longitudinal main ribs;
6. polysulfide sealant; 7. cement mortar; 8. an anti-corrosion coating;
9. a waterproof coating on the soil-facing surface; 91. cleaning the polished concrete base layer; 92. coating an interface agent;
93. polyurea waterproof paint; 94. a cement-based infiltration crystallization waterproof material; 95. a polyurethane waterproof coating.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1 to 4, an embodiment of the present invention provides a deformation joint construction method for an underground water treatment structure, including the steps of: reserving deformation joints between two adjacent groups of concrete wall plates 300; a water stop belt 2 is arranged at the deformation joint along the length direction of the deformation joint; a plurality of groups of force transmission connecting rod assemblies 1 are arranged at intervals along the length direction of the deformation seam, and each force transmission connecting rod assembly 1 comprises an outer sleeve 12 and a force transmission rod 11 which can slide along the inner wall of the outer sleeve 12; the dowel bar 11 and the outer sleeve 12 are respectively and correspondingly installed on the two groups of concrete wall plates 300, one end of the dowel bar 11 is fixed on one group of concrete wall plates 300, and the other end of the dowel bar is inserted into the outer sleeve 12 on the other group of concrete wall plates 300; each group of the force transmission connecting rod assemblies 1 at least comprises a first force transmission connecting rod assembly 101 and a second force transmission connecting rod assembly 102 which are arranged on two sides of the water stop belt 2 along the width direction of the deformation seam; and pouring concrete, and performing sealing and/or pointing and/or waterproof and/or anticorrosive treatment on two sides of the deformation joint after pouring.
The construction steps of arranging the water stop belt 2, the force transmission connecting rod assembly 1, sealing, water proofing, corrosion resistance and the like at the deformation joint along the length direction of the deformation joint can form multiple waterproof and anti-elastic deformation guarantees, the good deformation resistance of the structure can be guaranteed, the water seepage resistance and the anti-seismic performance of the structure can be improved, and the possibility of leakage and deformation of the deformation joint caused by temperature or uneven settlement is reduced.
Preferably, as shown in fig. 2, a gap of 30mm is reserved between the two adjacent concrete wall panels 300 to form the deformation joint.
In this embodiment, the width direction of the deformation joint is the direction a-a shown in fig. 1 and 2.
Optionally, the concrete wall panel 300 includes a water facing surface 100 and an earth facing surface 200 at front and rear sides of the deformation joint. Wherein the upstream face 100 is adapted to be in contact with groundwater.
Optionally, a first force-transmitting linkage assembly 101 is disposed at a first predetermined location proximate the upstream face 100 and a second force-transmitting linkage assembly 102 is disposed at a second predetermined location proximate the upstream face 200.
In the above scheme, each group of force transmission connecting rod assemblies 1 can form a better water and soil resistance pressure effect on the concrete walls on two sides in the deformation joint thickness direction through the first force transmission connecting rod assembly 101 and the second force transmission connecting rod assembly 102 which are arranged at the positions close to the upstream surface 100 and the upstream surface 200, so that the water and soil resistance pressure difference between the concrete walls on two sides in the deformation joint thickness direction and the water and soil resistance pressure difference on the other side, which are caused by the unilateral arrangement, is avoided, the integral water and soil resistance pressure performance of the structure is not balanced, and the phenomena of deformation water leakage or severe deformation tearing of the water stop belt 2 are caused.
By arranging a plurality of groups of force transmission connecting rod assemblies 1 at intervals along the length direction of the deformation seam, the pressure of water and soil can be resisted, and the transverse movement is reduced; the shear stress and the supporting stress of the concrete around the force transmission connecting rod component 1 at the deformation joint are improved, the force transmission rod 11 and the outer sleeve 12 are respectively and correspondingly arranged on the two groups of concrete wall plates 300, and the force transmission rod 11 can slide along the inner wall of the outer sleeve 12, so that the crushing or the tensile cracking of the concrete can be prevented; meanwhile, the force transmission connecting rod assembly 1 can enable two adjacent groups of concrete to be stressed together and transmit load between the two adjacent groups of concrete, so that uneven settlement caused by large local stress of the concrete is prevented, and staggering of the tank walls on two sides of the deformation joint is prevented.
Preferably, the distance between two adjacent groups of transmission connecting rod assemblies 1 along the length direction of the deformation joint is 350-450mm, the first transmission connecting rod assembly 101 is arranged on the deformation joint which is 110-130mm away from the upstream surface 100 along the width direction of the deformation joint, and the second transmission connecting rod assembly 102 is arranged on the deformation joint which is 90-110mm away from the upstream surface 200.
The plurality of force transmission connecting rod assemblies 1 are respectively and uniformly distributed at the set positions away from the water facing surface 100 and the soil facing surface 200, so that the connection stability of the concrete walls on the two sides of the deformation joint is further improved.
Optionally, in this embodiment, the deformation joint construction method of the groundwater treatment structure further includes:
and (2) uniformly coating a lubricant on the peripheral wall of the dowel bar 11, and/or filling the lubricant in the outer sleeve 12, and sealing one end of the outer sleeve 12 far away from the dowel bar 11.
Preferably, the lengths of the dowel bar 11 and the outer sleeve 12 are respectively 200-300mm, the dowel bar 11 is made of steel, the outer sleeve 12 is made of plastic, and the dowel bar 11 and the outer sleeve 12 are made of different materials, so that the dowel bar 11 and the outer sleeve 12 can be prevented from being bonded and fixed together and not sliding relatively to a certain extent, and the failure of the force transmission connecting rod assembly 1 is avoided.
Preferably, the peripheral wall of the dowel bar 11 is uniformly coated with butter as a lubricant, so that the friction of the dowel bar 11 moving along the axial direction of the outer sleeve 12 can be reduced, the smooth sliding between the dowel bar 11 and the outer sleeve 12 is ensured, the dowel bar 11 is prevented from being corroded to a certain extent and being solidified on the outer sleeve 12, and the service life of the dowel bar assembly 1 can be prolonged.
Preferably, the diameter of the outer sleeve 12 is 30-35mm (the wall thickness is 1-1.5mm), the length is 250mm, the outer sleeve is made of hard polyethylene plastics, and butter is injected into the outer sleeve 12 at least 200mm long; the dowel bar 11 is made of steel with the length of 250mm, the diameter of the dowel bar 11 is slightly smaller than the inner diameter of the outer sleeve 12, and grease with the length of at least 200mm is coated on the periphery of the dowel bar 11 close to the outer sleeve 12.
Preferably, a wooden plug 13 is arranged at one end of the outer sleeve 12 far away from the dowel bar 11 for plugging, the length of the wooden plug 13 is 25-23mm, and the end of the outer sleeve 12 far away from the dowel bar 11 is plugged, so that poured concrete is prevented from being poured into the outer sleeve 12, and the dowel bar 11 cannot slide relatively along the outer sleeve 12.
Optionally, the deformation joint construction method of the groundwater treatment structure further comprises the following steps:
after the water stop 2 is installed, reinforcing steel bars 4 are arranged on the front side and the rear side of the water stop 2 respectively along the width direction of the deformation joint so as to reinforce the position of the water stop 2.
This application sets up reinforcing bar 4 through both sides around waterstop 2, can consolidate the position of waterstop 2, avoids stopping the position of hosepipe 2 at concrete placement process and takes place the skew under the effect of external force, and can not play effectual water-proof effects.
Optionally, the reinforcing steel bars 4 include U-shaped reinforcing steel bar bodies 41 formed by bending steel bars, two reinforcing steel bars 4 located at the front and rear sides of the water stop 2 are connected by rigid fixing pieces 42, and a clamping space suitable for accommodating and limiting the water stop 2 is formed between the two reinforcing steel bars 4; preferably, the rigid fixing member 42 is a steel bar segment connected between the two reinforcing steel bars 4, and the connection manner of the rigid fixing member 42 and the two reinforcing steel bars 4 may be welding, binding or other fixed connection manners.
In the above scheme, reinforcing steel bar 4 compares in single straight steel bar structure through the design that adopts U type structure, and structural strength is higher, and resistance to compression anti-deformation ability is stronger to can better play the effect of reinforcing 2 positions of waterstop. Two reinforcing steel bars 4 of both sides take place to warp around can effectively avoiding waterstop 2 through the rigidity mounting 42 that sets up, improve the stability of two structures between reinforcing steel bar 4.
Preferably, reinforcing bars 4 are two pairs, and fixed the setting on two sets of adjacent concrete siding 300, and are located the left and right sides of waterstop 2, and every pair reinforcing bars 4 all includes two reinforcing bars 4 that are located 2 front and back both sides of waterstop to make reinforcing bars 4 enclose and close waterstop 2's periphery, the homoenergetic forms good reinforcing effect on the whole week of waterstop 2, further improves waterstop 2's steadiness.
Preferably, the reinforcing bars 4 extend in the width direction of the wall body. So set up, consolidate reinforcing bar 4 and can not only consolidate the position of waterstop 2, can also consolidate concrete wall to prevent to a certain extent that the local atress of concrete is great to cause uneven settlement.
Preferably, the reinforcement reinforcing bar 4 of U type is including two sections reinforcing bar main parts that set up relatively and the transitional coupling section of transitional coupling in two sections reinforcing bar main part one sides, form fillet and integral type between transitional coupling section and two sections reinforcing bar main parts and be connected, the transitional coupling section setting of reinforcement reinforcing bar 4 is on being close to the settlement position of movement joint and waterstop 2, 4 open ends of reinforcement reinforcing bar are located the one side of keeping away from the movement joint.
So set up, the transitional coupling section orientation that will have the radius angle is close to one side of waterstop 2, and with the one side of keeping away from the movement joint of comparatively sharp-pointed open end orientation, not only can prevent that more sharp-pointed U type opening tip from leading to the fact the damage to waterstop 2 during the construction, and reinforcing steel bar 4 is close to structural strength, the resistance to compression and deformation ability of transitional coupling section side in addition, all is higher than reinforcing steel bar 4's opening distolateral to can play better reinforcing effect.
Alternatively, as shown in fig. 1 and 3, in the present embodiment, a plurality of longitudinal main ribs 5 are arranged at intervals in the concrete wall panel 300 on the outer periphery of the water stop 2, and the longitudinal main ribs 5 extend in the length direction of the water stop 2, that is, in the length direction of the deformation joint. Every U type reinforcing bar 4 is equal fixed mounting on a set of vertical main muscle 5, and every vertical main muscle 5 of group is including being four vertical main muscle 5 that the rectangle distributes, interval between two sections reinforcing bar main parts of U type reinforcing bar 4 slightly is greater than the width of rectangle, rigid mount 42 with the interval of transitional coupling section slightly is greater than the length of rectangle, so make U type reinforcing bar and rigid mount 42 enclose to close to fix the periphery of four reinforcing bars, wherein, U type reinforcing bar 4's transitional coupling section both ends respectively with two vertical main muscle 5 fixed connection among them, U type reinforcing bar 4 and rigid mount 42 junction respectively with two other vertical main muscle 5 fixed connection. So set up, can improve the stability of reinforcing bar 4 structure effectively to can also be right reinforcing bar 4 forms the spacing effect of effectual location in the horizontal direction, avoids reinforcing bar 4 position on the horizontal direction to take place the drunkenness.
Preferably, each reinforcing steel bar 4 is fixedly connected to the longitudinal main bar 5 of the wall body by welding, binding or other fixing methods.
In this embodiment, be provided with many pairs of reinforcing bars 4 along the length direction interval of waterstop 2, many pairs of reinforcing bars 4 and the vertical main reinforcement 5 fixed connection that corresponds can improve the reinforcing effect of waterstop 2 on length direction to can improve concrete wall's intensity and structural stability on the whole.
Preferably, the length of the reinforcing steel bar 4 is 500-700 mm.
The water stop 2 is preferably of the type of a rubber medium-embedded water stop, although other types are possible.
Optionally, the foam plate 3 is stuffed in the deformation joints on both sides of the water stop band 2 along the width direction of the deformation joints.
Optionally, after the poured concrete meets the set strength requirement, cleaning the end faces of the two sides of the foam board 3, reserving filling spaces for filling sealing fillers in deformation joints on the two sides of the foam board 3 respectively, and embedding and filling and compacting the sealing fillers in the filling spaces.
Optionally, the reserved filling spaces on two sides of the foam board 3 in the deformation joint comprise a first filling space close to the soil facing surface 200 and a second filling space close to the soil facing surface 100, the depth of the reserved first filling space is 80-100mm, and the depth of the reserved second filling space is 100-120 mm.
Optionally, embedding and compacting the filling space by using polysulfide sealant 6, and filling and coating for 2-3 times at an interval of not less than 3 h.
Optionally, after the sealing filler is filled, a waterproof coating is coated at the deformation joint of the soil facing surface 200; and/or adopting cement mortar 7 to perform pointing in the deformation joint of the upstream surface 100, and coating an anticorrosive coating 8.
Optionally, as shown in fig. 4, in this embodiment, the step of applying a waterproof coating to the deformation joint of the soil facing surface 200 includes the following steps:
s101, coating an interface agent 92: uniformly brushing the interface agent 92 on the concrete surface within the range of 300mm on two sides by taking the deformation joint as the center;
s102, coating polyurea waterproof paint 93: after the step S101 is finished, coating polyurea waterproof paint 93 at intervals of at least 3 h;
s103, coating a cement-based permeable crystalline waterproof material 94: brushing a cement-based capillary crystalline waterproof material 94 with the thickness of 2.0mm for 3 times, wherein the interval of each time is not less than 3 hours;
s104, coating polyurethane waterproof paint 95: and after the step 103 is finished, brushing polyurethane waterproof paint 95 with the thickness of 1.5mm for 3 times at an interval of 3-5 h.
Preferably, a rubber asphalt waterproofing paint is applied before the cement-based permeable crystalline waterproofing material 94 is applied in step S103.
The deformation joint coating waterproof coating of the soil-facing surface 200 adopts polyurea waterproof coating 93 with strong adhesive force, strong friction and strong hardness, the deep waterproof effect can be achieved by brushing the polyurea waterproof coating 93, the protection life is long, and the components such as polyether, chain extender and the like in the polyurea waterproof coating 93 material can play a role in corrosion prevention.
Optionally, the step S102 specifically includes the following steps: coating 1mm of polyurea waterproof paint 93 on the two sides of the deformation joint within the range of 300 mm; sticking mesh cloth within 200mm of both sides of the deformation joint; 2mm polyurea waterproof paint 93 is coated on the two sides of the deformation joint within the range of 200 mm; 2mm polyurea waterproof paint 93 is coated on the two sides of the deformation joint within the range of 100 mm; and coating non-curing coating within the range of 300mm on both sides of the deformation joint.
The water seepage prevention effect can be further enhanced by the modes of brushing the polyurea waterproof coating 93 on the soil facing surface 200 for a plurality of times, pasting the grid cloth and brushing the non-curing coating.
Optionally, the step of pointing by using cement mortar 7 in the deformation joint of the upstream surface 100 and coating the anticorrosive coating 8 comprises the following steps:
after the sealing filler is embedded and filled, cleaning the concrete surfaces on the two sides of the deformation joint, and pointing by using 1:2 cement mortar 7 within a range of 20-40mm from the upstream surface;
brushing 1-1.5mm elastic epoxy modified anticorrosive paint, and brushing 3-4 times at an interval of 3-5 h.
By adopting cement mortar 7 pointing in the deformation joint of the upstream surface 100, the mortar of the concrete wall can be protected from erosion by water flow, the integrity of the concrete wall is improved, and the service life of the concrete wall is prolonged.
The application provides a construction method for arranging the water stop belt 2, the force transmission connecting rod assembly 1, the sealing and the waterproof and corrosion-resistant at the deformation joint along the length direction of the deformation joint, the construction is carried out according to the construction method, the quality control of underground water treatment structures is facilitated, the problems that the deformation joint is improper in construction process, the water leakage and the structure are easy to deform and the like are solved, the construction efficiency can be improved, the construction period can be shortened, and the construction cost is reduced.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.
Claims (10)
1. A deformation joint construction method of an underground water treatment structure is characterized by comprising the following steps:
reserving deformation joints between two adjacent groups of concrete wall plates (300), and arranging water stop belts (2) at the deformation joints along the length direction of the deformation joints;
a plurality of groups of force transmission connecting rod assemblies (1) are arranged at intervals along the length direction of the deformation seam, and each force transmission connecting rod assembly (1) comprises an outer sleeve (12) and a force transmission rod (11) which can slide along the inner wall of the outer sleeve (12);
the dowel bar (11) and the outer sleeve (12) are respectively and correspondingly arranged on the two groups of concrete wall plates (300), one end of the dowel bar (11) is fixed on one group of concrete wall plates (300), and the other end of the dowel bar is inserted into the outer sleeve (12) on the other group of concrete wall plates (300);
each group of the force transmission connecting rod assemblies (1) at least comprises a first force transmission connecting rod assembly (101) and a second force transmission connecting rod assembly (102) which are arranged on two sides of the water stop belt (2) along the width direction of the deformation seam;
and pouring concrete, and performing sealing and/or pointing and/or waterproof and/or anticorrosive treatment on two sides of the deformation joint after pouring.
2. A deformation joint construction method of an underground water treatment structure according to claim 1, wherein the concrete wall panel (300) comprises a water-facing surface (100) and an earth-facing surface (200) at both front and rear sides of the deformation joint;
the first force transmission connecting rod assembly (101) is arranged at a first preset position close to the water facing surface (100), and the second force transmission connecting rod assembly (102) is arranged at a second preset position close to the soil facing surface (200).
3. A deformation joint construction method of an underground water treatment structure according to claim 2, further comprising the steps of:
and (2) uniformly coating a lubricant on the peripheral wall of the dowel bar (11), and/or filling the lubricant in the outer sleeve (12), and plugging one end of the outer sleeve (12) far away from the dowel bar (11).
4. A deformation joint construction method of an underground water treatment structure according to any one of claims 1 to 3, characterized in that after the water stop (2) is installed, reinforcing bars (4) are provided along the width direction of the deformation joint on both the front and rear sides of the water stop (2) to reinforce the position of the water stop (2).
5. A deformation joint construction method of an underground water treatment structure according to any one of claims 1 to 3, characterized in that after the water stop (2) is installed, foam boards (3) are respectively filled in deformation joints on both sides of the water stop (2) in the width direction of the deformation joint;
and after the poured concrete meets the set strength requirement, cleaning the end surfaces of the two sides of the foam plate (3), and filling sealing fillers in deformation joints on the two sides of the foam plate (3).
6. A deformation joint construction method of an underground water treatment structure according to claim 5, characterized in that the sealing filler is polysulfide sealant (6) and is applied in 2-3 times at intervals of not less than 3 h.
7. A deformation joint construction method of an underground water treatment structure according to claim 5, characterized in that after the sealing filler is filled, a waterproof coating is applied to the deformation joint on the soil facing side (200); and/or jointing cement mortar (7) in the deformation joint on the upstream surface (100) side, and coating an anticorrosive coating (8).
8. A deformation joint construction method of an underground water treatment structure according to claim 7, wherein the step of applying a waterproof coating to the deformation joint on the earth-facing side (200) comprises the steps of:
s101, coating interface agent (92): uniformly brushing an interface agent (92) on the concrete surface within the range of 300mm on two sides by taking the deformation joint as the center;
s102, coating polyurea waterproof paint (93): after the step S101 is finished, coating polyurea waterproof paint (93) at intervals of at least 3 h;
s103, coating a cement-based permeable crystallization waterproof material (94): brushing a cement-based permeable crystallization waterproof material (94) with the thickness of 2.0mm for 3-4 times, wherein the interval of each time is not less than 3 hours;
s104, brushing a polyurethane waterproof coating (95): and after the step 103 is finished, brushing polyurethane waterproof paint (95) with the thickness of 1.5mm for 3-4 times at an interval of 3-5 h.
9. A deformation joint construction method of an underground water treatment structure according to claim 8, wherein the step S102 specifically comprises the steps of:
1mm polyurea waterproof paint (93) is coated on the two sides of the deformation joint within the range of 300 mm;
adhering mesh cloth within 200mm of both sides of the deformation joint;
2mm polyurea waterproof paint (93) is coated on the two sides of the deformation joint within the range of 200 mm;
2mm polyurea waterproof paint (93) is coated on the two sides of the deformation joint within the range of 100 mm;
and (3) coating non-curing coating within the range of 300mm on both sides of the deformation joint.
10. A deformation joint construction method of an underground water treatment structure according to claim 7, wherein pointing the deformation joint on the upstream surface (100) side with cement mortar (7) and applying an anticorrosive coating (8) comprises:
after the sealing filler is embedded, cleaning the concrete surfaces on the two sides of the deformation joint, and pointing the deformation joint by adopting 1:2 cement mortar (7) within a range of 20-40mm from the upstream surface (100);
brushing 1-1.5mm elastic epoxy modified anticorrosive paint, and brushing 3-4 times at an interval of 3-5 h.
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