Basement outer wall guide wall construction joint water stop structure and construction method

Abstract

The invention relates to a basement outer wall guide wall construction joint water stopping structure and a construction method, the water stopping structure comprises a water stopping steel plate, a water stopping steel plate and a water stopping steel plate, the water stopping steel plate is provided with a plate body and two oppositely-arranged bent bodies, and the bent bodies are bent towards the side face of the plate body and are arranged towards the upstream face; the connecting column is fixed on the plate body, and an insertion opening is formed in one end deviating from the plate body; the supporting pieces are installed on the outer side wall of the formwork, and the supporting pieces and the connecting columns are arranged at intervals; a bellmouth matched with the inserting opening is formed in one end of the supporting column, the other end of the supporting column is detachably connected to the supporting piece, a supporting column body can be telescopically adjusted, and an abutting block is arranged at the end, close to the supporting piece, of the supporting column and used for abutting against the inner side wall of the formwork. The supporting columns are adjusted in a telescopic mode, bidirectional clamping of the outer side and the inner side of the water stop steel plate area formwork is formed through the abutting blocks, local formwork looseness and uneven stress are effectively avoided, the quality defects such as formwork expansion, slurry leakage and slab staggering are remarkably reduced, the construction joint water stop effect and structural integrity are guaranteed, and the water stop device has the advantages of being simple in structure, convenient and fast to install and reliable in water stop.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a water-stopping structure and construction method for construction joints of basement exterior wall guide walls. Background Technology

[0002] Basement leakage is a common quality problem in construction projects, especially in areas with high groundwater levels and abundant groundwater resources, where basement exterior wall leakage is more prominent and difficult to completely eradicate. Extensive engineering practice has revealed that approximately 80% of basement exterior wall leakage points are concentrated at or near the construction joints in the exterior wall guide walls. Therefore, properly designing construction joints in the exterior wall guide walls and effectively improving the impermeability of the concrete at these joints are crucial means to improve the waterproofing performance of basement exterior walls.

[0003] Currently, during the construction of guide walls, to enhance the seepage prevention effect of construction joints, water-stop steel plates are typically pre-embedded at the construction joint locations to form an effective water-blocking barrier. The conventional construction method involves first welding and fixing the water-stop steel plates to the wall reinforcement, then erecting wooden formwork, and reinforcing the formwork with water-stop bolts. However, because water-stop bolts cannot penetrate the water-stop steel plates, the wooden formwork in the area where the water-stop steel plates are located cannot be reinforced and fixed with water-stop bolts. This can easily lead to uneven stress on the formwork in that area, localized bulging, grout leakage, or even misalignment, thus affecting construction quality and reducing the seepage prevention effect. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a water-stopping structure for construction joints of basement exterior walls. This structure solves the problem that, in existing technologies, because water-stopping bolts cannot penetrate water-stopping steel plates, wooden formwork cannot be reinforced and fixed in the area where the water-stopping steel plates are located. This can easily lead to uneven stress on the formwork in that area, local bulging, grout leakage, or even misalignment, thereby affecting construction quality and reducing the seepage prevention effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waterproofing structure for construction joints of basement exterior wall guide walls includes the following steps:

[0007] A water-stop steel plate has a plate body and two oppositely arranged bent bodies. The opposite sides of the plate body are integrally connected to the opposite sides of the two bent bodies. Both bent bodies are bent towards the side of the plate body and are oriented towards the water-facing side.

[0008] A connecting post is provided on the plate, and a socket is formed at one end facing away from the plate.

[0009] Support members are used to be installed on the outer wall of the template and are spaced apart from the connecting columns;

[0010] The support column is formed with a socket at one end of the two opposite ends, and the other end is detachably connected with the support piece, the outer diameter of the socket matches the inner diameter of the socket, and the support column is telescopic;

[0011] Wherein, the end of the support column close to the support piece is installed with an abutting block, so as to abut the abutting block to the inner side wall of the formwork or separate from it through the telescopic support column.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] 1. By setting the support piece and the support column, the support column can be adjusted by telescoping, and the formwork is tightly pressed from the inner side through the abutting block, so as to realize the bidirectional clamping and fixing of the outer side and the inner side of the steel plate area formwork, avoid the problems of local formwork loosening and uneven stress, and greatly reduce the quality defects such as formwork expansion, slurry leakage and formwork deviation caused by insufficient support.

[0014] Further, the support column comprises a support rod, a threaded rod and a knob, one end of the support rod is formed with the socket, the other end is rotatably connected with the knob, one end of the threaded rod is threadedly connected with the knob and slides in the inside of the support rod, and the other end sleeves the abutting block;

[0015] Wherein, the threaded rod moves along the axis direction of the support rod, so as to abut the abutting block to the inner side wall of the formwork or separate from it by rotating the knob.

[0016] Further, a sleeve is arranged on the abutting block, the sleeve is threadedly connected with the threaded rod, and the abutting block is clearance-fitted with the threaded rod;

[0017] Wherein, the abutting block moves along the axis direction of the threaded rod, so as to abut the abutting block to the inner side wall of the formwork or separate from it by rotating the sleeve.

[0018] Further, at least two installation grooves are arranged on the outer circumferential surface of the socket, one of the installation grooves is installed with a first rubber ring, and one or more of the remaining installation grooves are installed with at least one second rubber ring.

[0019] Further, a construction hole for injecting sealing material is arranged on the side wall forming the socket, and the construction hole corresponds to the position of the installation groove.

[0020] Further, the support piece comprises a rotating rod threadedly connected with the threaded rod and a mountain-shaped clamping block clamping the formwork on the rotating rod.

[0021] Further, the support further comprises a fixing nut, which is arranged at one end of the rotating rod through threaded connection.

[0022] Further, the bending body is provided with a plurality of fixing holes, which are arranged uniformly along the arrangement direction of the bending body, and the fixing holes are used for penetrating steel wires to connect the bending body with horizontal wall steel bars and / or vertical wall steel bars together through the steel wires.

[0023] Further, the connecting column is provided with a plurality of through holes, and the plurality of through holes are arranged along the horizontal direction, and the through holes are used for penetrating additional steel wires to connect the connecting column with horizontal wall steel bars and / or vertical wall steel bars together through the additional steel wires.

[0024] The basement outer wall guide wall construction method of the basement outer wall guide wall construction joint water stop structure is also provided, and the method comprises the following steps:

[0025] Step one: preparing the water stop steel plate, and then temporarily fixing the water stop steel plate to be located at the center line of the construction joint, that is, the horizontal center line of the plate body of the water stop steel plate is coincided with or located below the construction joint;

[0026] The bending body of the water stop steel plate is bent towards the water-facing direction, and a plurality of fixing holes are arranged on the bending body for subsequent binding connection with the wall steel bars.

[0027] Step two: fixing and installing the connecting column on the plate body of the water stop steel plate, and the end of the connecting column away from the plate body is provided with a socket for subsequent cooperation connection with the support column; and a plurality of through holes are arranged on the connecting column to penetrate additional steel wires for subsequent binding and fixing with the wall steel bars.

[0028] Step three: installing the formwork at the position of the guide wall construction joint, and installing the support on the outer side wall of the formwork; then inserting the one end of the support column into the socket of the connecting column through the socket, and arranging the first rubber ring and the second rubber ring in the installation groove on the outer periphery of the socket;

[0029] Step four: adjusting the support column to make the abutting block at the end of the support column close to the support abut against the inner side wall of the formwork, so that the water stop steel plate is positioned stably in the formwork.

[0030] Step five: binding and connecting the fixing holes on the bending body of the water stop steel plate with the wall steel bars through the steel wires to fix the spatial position of the water stop steel plate.

[0031] The through holes in the connecting column are penetrated by the additional steel wires to be bound and fixed with the wall steel bars, so that the overall connection firmness is enhanced.

[0032] Step six: after the water-stop steel plate positioning, formwork reinforcement and steel bar binding are completed, concrete pouring construction is carried out; during the pouring process, displacement of the water-stop steel plate, connecting column and support system is ensured not to occur.

[0033] Step seven: after the concrete reaches sufficient strength, the formwork is removed, and then the support and abutting block are gradually removed for next time use.

[0034] Further, after the steel bar binding is completed, before the concrete pouring construction, sealing material can be injected to the joint between the spigot and the socket through the construction hole, so as to further enhance the water-stop performance. BRIEF DESCRIPTION OF DRAWINGS

[0035] ATTACHED Figure 1 : the construction structure schematic diagram of the basement outer wall guide wall construction structure of the embodiment 1;

[0036] ATTACHED Figure 2 : the structure schematic diagram of the water-stop steel plate in the basement outer wall guide wall construction structure of the embodiment 1;

[0037] ATTACHED Figure 3 : the connecting structure schematic diagram of the connecting column and the support column in the basement outer wall guide wall construction structure of the embodiment 1;

[0038] ATTACHED Figure 4 : the construction installation structure schematic diagram of the water-stop steel plate in the basement outer wall guide wall construction structure of the embodiment 2;

[0039] EXPLANATION OF THE DRAWINGS:

[0040] 1, water-stop steel plate; 11, plate body; 12, bending body;

[0041] 2, connecting column; 21, spigot; 22, through hole;

[0042] 3, support; 31, rotating rod; 32, mountain-shaped clamping block; 33, fixed nut;

[0043] 4, support column; 41, support rod; 42, threaded rod; 43, knob; 44, socket; 45, abutting block; 46, sleeve; 47, installation groove; 48, construction hole;

[0044] 5, first rubber ring;

[0045] 6, second rubber ring;

[0046] 7, horizontal wall steel bar;

[0047] 8, vertical wall steel bar;

[0048] 9, water-stop screw rod;

[0049] 10, formwork.

[0050] The objectives, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0051] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0052] In the description of the present application, it should be noted that the structure, proportion, size, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the present specification, so that those skilled in the art can understand and read, and are not used to limit the defined conditions under which the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are only for the convenience of clear understanding of the description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the implementation of the present application.

[0053] Embodiment 1

[0054] As shown in Figures 1-3 , the basement outer wall guide wall construction joint water stop structure according to the embodiment of the present application comprises a water stop steel plate 1, a connecting column 2, a support 3 and a support column 4; the water stop steel plate 1 has a plate body 11 and two oppositely arranged bending bodies 12, the opposite sides of the plate body 11 are integrally connected to the opposite sides of the two bending bodies 12, respectively, the two bending bodies 12 are bent towards the side direction of the plate body 11, and the bending bodies 12 are arranged towards the water-facing surface; the connecting column 2 is arranged on the plate body 11, and the end away from the plate body 11 is formed with a socket 21; the support 3 is used to be installed on the outer side wall of the formwork 10 and is arranged at intervals with the connecting column 2; one end of the opposite ends of the support column 4 is formed with a socket 44, and the other end is detachably connected to the support 3, the outer diameter of the socket 44 matches the inner diameter of the socket 21, and the support column 4 is telescopic; wherein, the end of the support column 4 close to the support 3 is installed with an abutting block 45, so as to abut the abutting block 45 to the inner side wall of the formwork 10 or separate from it through the telescopic support column 4.

[0055] In the embodiment of the present application, first, the connecting column 2 is installed on the water stop steel plate 1 at a set position, and the end of the connecting column 2 away from the plate body 11 is reserved with a socket 21; then the water stop steel plate 1 is temporarily fixed in the middle line of the construction joint, and the formwork 10 is erected to the predetermined position in the conventional method; then the support 3 is arranged on the outer side wall of the formwork 10, and the support 3 is connected with the support column 4, that is, the end of the support column 4 is inserted into the socket 21 of the connecting column 2 to form a preliminary fixation; then the position of the abutting block 45 is adjusted by the telescopic adjustment of the support column 4 until the abutting block 45 is tightly abutted to the inner side wall of the formwork 10 to form a bidirectional clamping of the inside and outside, so that the formwork 10 is uniformly and stably stressed at the area of the water stop steel plate 1; then after the formwork 10 is reinforced, the concrete pouring operation is carried out. Since the formwork 10 at the area of the water stop steel plate 1 is effectively supported, the formwork 10 will not appear the phenomena of swelling and running, so as to ensure the compact formation of the concrete near the construction joint, improve the overall impermeability, and reduce the leakage hidden danger. Finally, after the concrete reaches a certain strength, the formwork 10, the support 3 and the ground block are removed for the next time use.

[0056] In the embodiment of the present application, the connecting column 2 is provided with a plurality of connecting columns 2 on the plate body 11 of the water stop steel plate 1, and the corresponding support 3 and support column 4 are also provided with a plurality of support columns 4 and support 3, which are arranged according to the length of the water stop steel plate 1 and distributed on the opposite two sides of the plate body 11 of the water stop steel plate 1. By arranging the plurality of support columns 4, support 3 and support column 4 along the length direction of the water stop steel plate 1, a continuous and uniform support system can be formed in the whole area of the water stop steel plate 1, which can effectively avoid the deformation or running of the local formwork 10 due to insufficient support.

[0057] Specifically, in the embodiment of the present application, as shown in Figures 2-3As shown, the support column 4 comprises a support rod 41, a threaded rod 42 and a knob 43, one end of the support rod 41 forms the socket 44, the other end is rotatably connected to the knob 43, one end of the threaded rod 42 is threadedly connected to the knob 43 and slides in the inside of the support rod 41, the other end is sleeved with the abutting block 45; wherein the threaded rod 42 moves along the axial direction of the support rod 41, so that the abutting block 45 is abutted on or separated from the inner side wall of the formwork 10 by rotating the knob 43. The position of the threaded rod 42 can be adjusted by rotating the knob 43, so that the abutting block 45 is tightened or loosened, without the need for complex tools and manual operation is convenient and fast. Moreover, a sleeve 46 is arranged on the abutting block 45, the sleeve 46 is threadedly connected to the threaded rod 42, and the abutting block 45 is clearance-fitted with the threaded rod 42; wherein the abutting block 45 moves along the axial direction of the threaded rod 42, so that the abutting block 45 is abutted on or separated from the inner side wall of the formwork 10 by rotating the sleeve 46. By rotating the sleeve 46 on the abutting block 45, the abutting block 45 is directly driven to move forward or backward along the axial direction of the threaded rod 42, so that the abutting force and position can be more finely controlled, and errors caused by large-scale rotation of the overall structure are avoided.

[0058] In specific use, the socket 44 at one end of the support rod 41 is inserted into the socket 21 of the connecting column 2 of the water stop steel plate 1 to preliminarily position the support column 4, then the other end of the support column 4 is connected to the support member 3 mounted on the outer side wall of the formwork 10 to form a basic support structure. Then the knob 43 is manually rotated to move the threaded rod 42 along the axial direction of the support rod 41, and the abutting block 45 at the end of the threaded rod 42 is gradually moved close to the inner side wall of the formwork 10 until the abutting block 45 is firmly abutted on the inner side wall of the formwork 10, and the support column 4 forms stable support for the formwork 10. Wherein, after the abutting block 45 abuts against the inner side wall of the formwork 10, the sleeve 46 on the abutting block 45 can be further rotated to more finely control the abutting force and position, so that the formwork 10 is uniformly and tightly compacted and fixedly formed.

[0059] By setting the knob 43 and the sleeve 46 connected with the threaded rod 42 respectively in the application, double adjustment of the position of the abutting block 45 is realized, that is, firstly, by rotating the knob 43, the telescopic adjustment of the threaded rod 42 as a whole can be realized, which is convenient for quickly adjusting the position of the abutting block 45 in a large range, so as to realize the preliminary support and fixation of the formwork 10; secondly, by rotating the sleeve 46, the abutting block 45 can be further finely adjusted in the forward or backward direction along the axis of the threaded rod 42, so that the abutting force and position between the abutting block 45 and the inner side wall of the formwork 10 are more accurate, and the error caused by the overall adjustment is avoided. The structure design takes into account the functions of coarse adjustment and fine adjustment, which not only improves the efficiency of support installation, but also greatly improves the positioning accuracy and stability of the formwork 10 in the construction process, effectively prevents the displacement, deformation or slurry leakage of the formwork 10 due to uneven stress, and thus guarantees the construction quality and water stop effect.

[0060] Specifically, in the embodiment of the application, as shown in Figure 3 the outer circumferential surface of the socket 44 is provided with at least two installation grooves 47, one of the installation grooves 47 is provided with a first rubber ring 5, and one or more of the remaining installation grooves 47 are provided with at least one second rubber ring 6; wherein the first rubber ring 5 is made of high-hardness nitrile rubber (NBR) to provide strong support force and preliminary positioning effect; the second rubber ring 6 is made of medium-hardness ethylene propylene diene rubber (EPDM) to balance good elasticity and sealing performance, so as to effectively improve the water stop and anti-seepage effect while ensuring firm socket connection, and adapt to small size errors and formwork 10 deformation in the construction site. By combining rubber rings of different materials and different hardness, the connection between the support column 4 and the connecting column 2 is more firm and reliable.

[0061] Secondly, a construction hole 48 for injecting sealing material is formed in the side wall of the socket 21, the construction hole 48 corresponds to the position of the installation groove 47, specifically, there is at least one vacant installation groove 47 between the first rubber ring 5 and the second rubber ring 6. Correspondingly, a construction hole 48 is formed in the pipe wall of the socket 21 corresponding to the vacant installation groove 47. Through the construction hole 48, sealing material such as sealant or expansion type waterproof slurry can be conveniently injected into the installation groove 47, and the sealing material fills and covers the rubber ring in the installation groove 47, so as to further improve the connectivity and stability of the connection.

[0062] Specifically, in the embodiment of the application, as shown in Figure 2As shown, the support 3 comprises a rotating rod 31 threadedly connected with the threaded rod 42 and a mountain-shaped clamping block 32 for clamping the formwork 10 on the rotating rod 31, one end of the support column 4 is inserted into the socket 21, and the other end is connected to the support 3 outside the formwork 10 to form a preliminary support structure, then the position of the abutting block 45 is adjusted through the support column 4 to abut on the inner side wall of the formwork 10, and then the mountain-shaped clamping block 32 is clamped to the outer side wall of the formwork 10 to ensure the fixation of the formwork 10 and avoid the dislocation or deformation of the formwork 10 due to uneven force during construction. Moreover, the support 3 further comprises a fixing nut 33 which is arranged at one end of the rotating rod 31 through threaded connection, and the mountain-shaped clamping block 32 is clamped to the outer side wall of the formwork 10 through the fixing nut 33.

[0063] Specifically, in the embodiment of the present application, a plurality of fixing holes (not shown in the figure) are arranged on the bending body 12, the fixing holes are arranged uniformly along the arrangement direction of the bending body 12, and the fixing holes are used for penetrating a steel wire to connect the bending body 12, the horizontal wall body reinforcing steel bar 7 and / or the vertical wall body reinforcing steel bar 8 together through the steel wire. During construction, the construction personnel first penetrate the steel wire through the fixing holes on the bending body 12, then bind the steel wire to the corresponding horizontal wall body reinforcing steel bar 7 or vertical wall body reinforcing steel bar 8, and finally tighten the fixing. In this way, the water stop steel plate 1 is stably attached to the reinforcing cage through the bending body 12, and the water stop steel plate 1 can be firmly kept at the designed position during subsequent pouring of concrete, effectively plays the role of water retaining and water stopping, and also effectively avoids the welding operation during installation of the water stop steel plate 1, thereby improving the construction efficiency.

[0064] Specifically, in the embodiment of the present application, as shown in the figure, Figure 2 As shown, the connecting column 2 is provided with a plurality of through holes 22, the plurality of through holes 22 are arranged along the horizontal direction, and the through holes 22 are used for penetrating an additional steel wire to connect the connecting column 2, the horizontal wall body reinforcing steel bar 7 and / or the vertical wall body reinforcing steel bar 8 together through the additional steel wire. The connecting column 2 is firmly bound to the wall body main reinforcing steel bar through the additional steel wire, which effectively prevents the connecting column 2 from being displaced or shaken during pouring of concrete, and ensures the accurate positioning of the water stop steel plate 1 and the entire water stop system.

[0065] In the embodiment of the present application, the water stop steel plate 1 is an important barrier for construction joint anti-seepage, the connecting column 2 is arranged on the plate body 11 of the water stop steel plate 1, cooperates with the plurality of through holes 22 arranged along the horizontal direction in the connecting column 2, and penetrates an additional steel wire in the through hole 22 to tightly connect the connecting column 2 with the wall body reinforcing steel bar (horizontal wall reinforcing steel bar and / or vertical wall reinforcing steel bar), thereby forming a firm, integral stress and efficient water stopping structure system.

[0066] The basement outer wall guide wall construction joint water stop structure also provided by the embodiment of the application comprises a water stop steel plate, a connecting column, a support column, a formwork, a support piece, a water stop screw rod and a first rubber ring and a second rubber ring.

[0067] Step one: preparation and preliminary positioning of the water stop steel plate

[0068] The water stop steel plate 1 is prepared and has a plate body 11 and a bending body 12 arranged towards the water-facing surface, and a plurality of fixing holes are uniformly arranged on the bending body 12 for subsequent binding connection with the wall steel bars;

[0069] The water stop steel plate 1 is temporarily fixed at the construction joint position, so that the horizontal center line of the water stop steel plate 1 coincides with the center line of the construction joint or is located below the construction joint, so as to ensure that the water stop steel plate 1 is reasonably arranged and the water-facing direction is correct;

[0070] Step two: installation of the connecting column

[0071] The connecting column 2 is fixedly installed on the plate body 11 of the water stop steel plate 1, and an insertion opening 21 is formed at one end of the connecting column 2 away from the plate body 11 for subsequent plug-in connection with the support column 4;

[0072] A plurality of through holes 22 are arranged on the connecting column 2 in the horizontal direction, so that additional steel wires are arranged in the through holes 22 in subsequent construction, and the horizontal wall steel bars 7 and / or the vertical wall steel bars 8 are bound and fixed, so as to enhance the stability of the overall structure;

[0073] Step three: installation of the formwork 10 and the support piece 3

[0074] The formwork 10 is installed at the guide wall construction joint position, and the support piece 3 and the water stop screw rod 9 are installed on the outer side wall of the formwork 10;

[0075] The socket 44 at one end of the support column 4 is plug-in connected to the insertion opening 21 of the connecting column 2, and the first rubber ring 5 and the second rubber ring 6 are arranged in the grooves 47 on the outer periphery of the socket 44, respectively, so as to improve the sealing property and stability of the plug-in connection;

[0076] The other end of the support column 4 is threadedly connected to the support piece 3, the support piece 3 is clamped and fixed to the outer side wall of the formwork 10 through the mountain-shaped clamping block 32, and is locked through the fixing nut 33, so as to form a complete support structure;

[0077] The water stop screw rod 9 is installed on the part of the water stop steel plate 1 that is not on the formwork 10;

[0078] Step four: adjustment and positioning of the support column 4

[0079] The knob 43 or the sleeve 46 on the support column 4 is manually rotated, the threaded rod 42 is driven to move axially, and then the position of the abutting block 45 is adjusted, until the abutting block 45 is firmly abutted against the inner side wall of the formwork 10;

[0080] Through the telescopic adjustment of the supporting column 4, the precise positioning and stable support of the waterstop steel plate 1 inside the formwork 10 are realized, and displacement in the construction process is prevented.

[0081] Step five: steel bar binding and structure fixing

[0082] Steel wires are used to pass through the fixing holes on the bent body 12, and the bent body 12 is bound and connected with the horizontal wall steel bar 7 and / or the vertical wall steel bar 8, so as to further fix the position of the waterstop steel plate 1. At the same time, the through hole 22 in the connecting column 2 is passed through, an additional steel wire is inserted, and is bound with the surrounding wall steel bar to form an integrated and stable connecting structure, so as to effectively improve the anti-permeation and anti-impact capability.

[0083] Step six: concrete pouring construction

[0084] After the positioning of the waterstop steel plate 1, the reinforcement of the formwork 10 and the steel bar binding are completed, concrete pouring construction is performed.

[0085] During the pouring process, it should be ensured that the waterstop steel plate 1, the connecting column 2 and the supporting system remain stable and do not displace, warp or deviate, so as to ensure the construction joint waterstop effect.

[0086] Among them, before the steel bar binding is completed and the concrete is poured, sealing material is injected into the connecting part of the spigot 21 and the socket 44 through the construction hole 48, so as to further enhance the sealing property and anti-permeation capability of the splicing part.

[0087] Step seven: form removal and supporting system recovery

[0088] After the concrete strength reaches the design requirement, the formwork 10 is removed in sequence, and the supporting piece 3 and the abutting block 45 are gradually removed; the supporting column 4 and the supporting piece 3 can be recycled, so as to improve the construction economy and resource utilization rate.

[0089] Embodiment 2

[0090] As shown in Figure 4 The basement outer wall guide wall construction method provided by the embodiment of the application is aimed at high anti-leakage requirements, combines the setting of multiple waterstop steel plates 1 and the design of the rebate type construction joint, and forms a set of strict, controllable and reliable construction system, and the specific construction steps are as follows:

[0091] Step one: preparation and preliminary positioning of the waterstop steel plate 1

[0092] (1) A high-quality waterstop steel plate 1 is prepared, high-quality carbon steel is selected, the thickness is controlled to be 3-5 mm, the surface is treated by hot galvanizing, and the edge is finely polished, so as to ensure the corrosion resistance and adhesion performance;

[0093] Among them, the steel plate is divided into two types:

[0094] At the height of 500 mm of the guide wall, two opposite parallel water-stop steel plates 1 are arranged with a spacing greater than 300 mm;

[0095] At the height of 850 mm of the guide wall, a water-stop steel plate 1 is arranged in the center line of the wall body with an opening facing the water surface, and the opening angle is controlled within the range of 45°-60°;

[0096] (2) The water-stop steel plate 1 is processed by using a numerical control cutting equipment, and after being transported to the construction site, a high-precision level gauge and a steel ruler are used to measure and mark the installation position, so as to ensure that the horizontal center line of the water-stop steel plate 1 coincides with or is reasonably offset from the center line of the construction joint;

[0097] (3) The water-stop steel plate 1 is temporarily fixed, and the water surface direction is confirmed to be correct;

[0098] Step two: installation and fixation of the connecting column 2

[0099] (1) The connecting column 2 is welded on the plate body 11 of the water-stop steel plate 1, and the connecting column 2 is provided with a socket 21 facing the water-stop steel plate 1, which is used for subsequent connection of the support system;

[0100] (2) The connecting column 2 is provided with a plurality of through holes 22 in the horizontal direction, which facilitates the subsequent penetration of additional steel bars and the binding connection with the horizontal and vertical steel bars of the wall body, thereby enhancing the overall stability;

[0101] Step three: installation of the formwork 10 and the support system

[0102] (1) The L-shaped high-strength plywood formwork 10 (12-15 layers, each layer of single board thickness is 1.2-1.5 mm, which is glued by phenolic resin glue under high temperature and high pressure) is installed at the construction joint position;

[0103] (2) The bottom opening of the formwork 10 is sealed by a special rubber sealing strip at the position of the S1 water-stop steel plate 1, so as to ensure the water-stop effect, and a hard plastic edge is provided on the outside to enhance the wear resistance;

[0104] (3) The support piece 3 and the water-stop screw 9 are installed, the receiving port 44 of the support column 4 is inserted into the socket 21 of the connecting column 2, the first rubber ring 5 and the second rubber ring 6 are arranged on the outer periphery of the receiving port 44, and the sealing property of the insertion is enhanced;

[0105] (4) The other end of the support column 4 is threadedly connected to the support piece 3, the support piece 3 is clamped and fixed on the outside of the formwork 10 by the mountain-shaped clamping block 32, and is locked by a nut;

[0106] Step four: adjustment of the support column 4 and precise positioning of the water-stop steel plate 1

[0107] (1) The knob 43 or the sleeve 46 of the support column 4 is manually rotated to drive the threaded rod 42 to adjust the abutting block 45, so as to ensure that the formwork 10 and the water-stop steel plate 1 are accurately and firmly positioned;

[0108] (2) Use high-precision measuring instruments to check the alignment of the template 10 and the guide wall contour line, with an error of within ±5 mm; the perpendicularity of the template 10 is controlled within ±3 mm, and the flatness deviation is controlled within ±2 mm;

[0109] (3) Install HRB400 temporary reinforcing steel bars (diameter 12-16 mm), with one row every 250-300 mm in the horizontal direction and one row every 400-500 mm in the vertical direction, forming a dense reinforcing grid system to prevent the template 10 from shifting and expanding during pouring;

[0110] Step five: Steel bar binding and structural stability reinforcement

[0111] (1) Thread the steel wire through the fixing hole on the bent body 12 of the water stop steel plate 1, and bind and connect the bent body 12 with the horizontal and vertical steel bars of the wall;

[0112] (2) Thread additional steel wires through the through hole 22 of the connecting column 2 and bind them with the surrounding steel bar system to form a monolithic structure, significantly improving the impermeability and overall strength;

[0113] Step six: Concrete pouring construction

[0114] (1) Check that all materials (water stop steel plate 1, template 10, steel bars, etc.) are of qualified quality, and that the concrete mixing time is not less than 90 seconds, and strictly follow the mixing ratio for construction;

[0115] The pouring sequence is: first pour to the height of the S1 water stop steel plate 1, then continue pouring to the S2 water stop steel plate 1, and the pouring method is: layer pouring, with a thickness control of 300-500 mm, plug-in vibration, and a vibration interval of no more than 1.5 times the effective radius of the vibrating rod; the vibration time is controlled at about 15-30 seconds without air bubble and paste on the surface of the concrete;

[0116] (2) The vibrating rod needs to be inserted into the lower layer by 50-100 mm at the new and old concrete joint to ensure good fusion of the new and old concrete; and the sealing material is injected into the spigot 21 and socket 44 through the construction hole 48 before the concrete initial setting to further enhance the water stop effect;

[0117] Step seven: Demolition of the formwork and recovery of the support system

[0118] (1) After the concrete strength reaches the design requirement, the template 10, support 3, and abutting block 45 are removed in sequence. The support column 4 and support 3 can be recycled, improving the construction economy and resource utilization rate.

[0119] Finally, it is to be explained that the above embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A basement exterior wall guide wall construction joint waterstop structure, characterized by, The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side.

2. The basement exterior wall guide wall construction joint waterstop structure according to claim 1, characterized in that, The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side.

3. The basement exterior wall guide wall construction joint waterstop structure according to claim 2, characterized in that, The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side.

4. The basement exterior wall guide wall construction joint waterstop structure according to claim 1, characterized in that, The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side.

5. The basement exterior wall guide wall construction joint waterstop structure according to claim 4, characterized in that, The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side.

6. The basement exterior wall guide wall construction joint waterstop structure according to claim 2, characterized in that, The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending bodies (12) respectively, the two bending bodies (12) are bent to the side direction of the plate body (11) respectively, and the bending bodies (12) are arranged towards the water surface side. The utility model relates to a waterstop steel plate (1) and a support column (2) and a support piece (3) and a support column (4), and the waterstop steel plate (1) comprises a plate body (11) and two opposite bending bodies (12), the opposite sides of the plate body (11) are integrally connected with the opposite sides of the two bending 7. The basement exterior wall guide wall construction joint waterstop structure according to claim 1, characterized in that, The bending body (12) is provided with a plurality of fixing holes which are arranged uniformly along the arrangement direction of the bending body (12), and the fixing holes are used for penetrating steel wires to connect the bending body (12) with horizontal wall steel bars (7) and / or vertical wall steel bars (8) through the steel wires.

8. The basement exterior wall guide wall construction joint waterstop structure according to claim 1, characterized in that, The connecting column (2) is provided with a plurality of through holes (22), and the plurality of through holes (22) are arranged along the horizontal direction, and the through holes (22) are used for penetrating additional steel wires to connect the connecting column (2) with horizontal wall steel bars (7) and / or vertical wall steel bars (8) through the additional steel wires.

9. A basement outer wall guide wall construction method using the basement outer wall guide wall construction joint water stop structure according to any one of claims 1 to 8, characterized by, The method comprises the following steps: Step one: prepare the water stop steel plate (1), and then temporarily fix the water stop steel plate (1) to be located on the middle line of the construction joint, that is, the horizontal middle line of the plate body (11) of the water stop steel plate (1) is coincided with or below the construction joint; Wherein, the bending body (12) of the water stop steel plate (1) is bent towards the water-facing direction, and a plurality of fixing holes are arranged on the bending body (12) for subsequent binding and connection with the wall steel bars; Step two: fix and install the connecting column (2) on the plate body (11) of the water stop steel plate (1), and the end of the connecting column (2) away from the plate body (11) is provided with a socket (21) for subsequent cooperation and connection with the support column (4); and a plurality of through holes (22) are arranged on the connecting column (2) to penetrate additional steel wires for subsequent binding and fixing with the wall steel bars; Step three: install the formwork (10) at the position of the guide wall construction joint, and install the support member (3) and the water stop screw (9) on the outer side wall of the formwork (10); then insert the end of the support column (4) into the socket (21) of the connecting column (2) through the socket (44), and arrange the first rubber ring (5) and the second rubber ring (6) in the installation groove (47) on the outer periphery of the socket (44); Step four: adjust the support column (4) so that the abutting block (45) at one end of the support column (4) close to the support member (3) abuts tightly against the inner side wall of the formwork (10), so that the water stop steel plate (1) is stably positioned in the formwork (10); Step five: bind and connect the fixing holes on the bending body (12) of the water stop steel plate (1) with the wall steel bars through steel wires to fix the spatial position of the water stop steel plate (1); The through holes (22) in the connecting column (2) are penetrated by additional steel wires to bind and fix the wall steel bars, thereby enhancing the overall connection firmness; Step six: after the water stop steel plate (1) is positioned, the formwork (10) is reinforced, and the steel bars are bound, concrete pouring construction is carried out; during the pouring process, it is ensured that the water stop steel plate (1), the connecting column (2) and the support system do not displace. Step seven: after the concrete reaches sufficient strength, the formwork (10) is removed, and then the support member (3) and the abutting block (45) are gradually removed for next time use.

10. The method of claim 9, wherein, After the steel bars are bound, before the concrete pouring construction, sealing material can be injected into the connection between the socket (21) and the socket (44) through the construction hole (48) to further enhance the water stop performance.

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