Construction joint construction method of waterproof concrete wall

Abstract

The invention relates to a construction joint construction method of a waterproof concrete wall, which belongs to the technical field of constructional engineering and is realized by adopting a waterproof concrete wall construction joint water stop belt. The concrete bottom plate or the floor concrete plate and the waterproof concrete wall are respectively poured at one time, so that the quality is guaranteed, convenience is brought to construction, the construction efficiency is improved, and the construction cost is reduced; meanwhile, the construction joint is located in the middle of the water stop belt, the waterproof effect is achieved for the construction joint, and it can be guaranteed that the construction joint does not have the leakage problem. The distributed key grooves or the full-length key grooves in the water stop belt of the waterproof concrete wall construction joint are beneficial for guaranteeing the structural performance of the waterproof concrete wall, and the tooth-shaped bottom edges, the notches or the right-angle break angles are beneficial for connecting and fixing the water stop belt of the waterproof concrete wall construction joint and adjacent steel bars.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, and in particular relates to the construction of waterproof concrete walls. Background Technology

[0002] The construction joint treatment of waterproof concrete walls has long been a problem, with leakage frequently occurring at these joints. For example... Figure 19 As shown, current structural design places the construction joint of the waterproof concrete wall 300-600mm above the top elevation of the concrete base slab or floor slab, with a steel waterstop extending across the construction joint. The concrete is required to be poured in one continuous pour. However, due to the excessive fluidity of pumped concrete, it is impossible to ensure that the top elevation of the waterproof concrete wall exceeds the top elevation of the slab. Figure 20 As shown, during actual construction, a construction joint is still left at the top elevation of the slab. It is common for the concrete in the construction joint to be not dense, which forms a leakage channel.

[0003] The utility model patent specification CN202420931404.1 discloses a waterproof structure for construction joints of exterior walls in underground engineering projects, comprising: a concrete base slab, a concrete wall, and a water-stopping structure. (See the accompanying drawings in the specification.) Figure 1 As can be seen, the construction joint of the waterproof concrete wall is located above the top surface elevation of the concrete base slab. In actual construction, because ready-mixed concrete is pumped, its fluidity is good, and a construction joint will naturally form at the top surface elevation of the concrete base slab or floor slab during vibration. Generally, the construction joint is left for a short period, which brings many problems: if a second pour is made immediately after the concrete base slab or floor slab loses its fluidity, the quality of the pre-cast concrete may be severely affected due to exceeding the final setting time; if fresh concrete is used, the small quantity and large area significantly reduce construction efficiency and increase costs, and both methods disturb and damage the previously poured concrete. If the construction joint is left for a longer period, a de facto construction joint is formed. The leakage problems at the base of waterproof concrete walls in actual projects are basically due to this.

[0004] Therefore, it is necessary to improve the construction joint practices for waterproof concrete walls. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a construction joint method for waterproof concrete walls, thereby solving the problem of easy leakage at the base of waterproof concrete walls in actual engineering projects.

[0006] A method for constructing construction joints in a waterproof concrete wall includes the following steps, which are performed sequentially:

[0007] Step 1: Prepare waterproof concrete wall construction joint waterstops, including waterstops with notches at the bottom and waterstops without notches at the bottom;

[0008] The waterstops with notches at the bottom are all provided with notches, namely, flat waterstops with notches at the bottom, distributed keyway waterstops with notches at the bottom, or continuous keyway waterstops with notches at the bottom.

[0009] The bottom-notch waterstops are either flat waterstops without bottom notches, distributed keyway waterstops without bottom notches, or continuous keyway waterstops without bottom notches.

[0010] Step 2: Install waterproof concrete wall construction joint waterstop

[0011] When binding steel bars during the construction of concrete base slabs or floor concrete slabs, a continuous steel bar is placed in the middle of the construction joint. The waterstop with a notch at the bottom, prepared in step one, is placed vertically next to the continuous steel bar. The top steel bar of the concrete base slab or floor concrete slab, which is arranged perpendicular to the continuous steel bar, is inserted into the notch of the waterstop at the construction joint of the waterproof concrete wall. The waterstop with a notch at the bottom is fixedly connected to the continuous steel bar and the top steel bar of the concrete base slab or floor concrete slab by spot welding, thus completing the installation of the waterstop at the construction joint of the waterproof concrete wall.

[0012] When binding steel bars during the construction of a concrete base slab or floor concrete slab, a continuous steel bar is placed in the middle of the construction joint. The bottom-no-gap waterstop prepared in step one is placed upright close to the continuous steel bar. The bottom-no-gap waterstop is then fixedly connected to the continuous steel bar and the top steel bar of the concrete base slab or floor concrete slab by spot welding to complete the waterstop installation of the construction joint of the waterproof concrete wall.

[0013] Step 3: Pour concrete for the base slab or floor slab.

[0014] When pouring concrete for the base slab or floor slab, a construction joint for a waterproof concrete wall is left at the top elevation of the base slab or floor slab. The lower section of the waterproof concrete wall construction joint waterstop is embedded in the concrete below the construction joint, while the upper section is exposed above the construction joint.

[0015] Step 4: Pour the waterproof concrete wall

[0016] The process involves tying the reinforcing bars of the waterproof concrete wall, setting up the formwork for the waterproof concrete wall, pouring the waterproof concrete wall concrete, and embedding the upper section of the waterproof concrete wall construction joint waterstop that is exposed at the top of the construction joint into the waterproof concrete wall concrete. This completes one method of constructing a waterproof concrete wall construction joint.

[0017] The preparation method of the flat waterstop with a notch at the bottom, the distributed keyway waterstop with a notch at the bottom, or the continuous keyway waterstop with a notch at the bottom mentioned in step one is as follows:

[0018] The flat waterstop with a notch at the bottom is prepared by using a flat metal strip, or by preparing a strip with a bend, and by preparing a toothed bottom edge and a notch at the bottom of the flat waterstop with a notch at the bottom.

[0019] The distributed keyway waterstop with a notch at the bottom is prepared by using a flat metal strip or by preparing a metal strip with bends, and by preparing distributed keyways on the metal strip. A toothed bottom edge and a notch are prepared at the bottom of the distributed keyway waterstop with a notch at the bottom.

[0020] The continuous keyway waterstop with a notch at the bottom is prepared by using a planar metal strip. A continuous keyway is prepared on the metal strip, and a toothed bottom edge and a notch are prepared at the bottom of the continuous keyway waterstop with a notch at the bottom.

[0021] The preparation method of the flat waterstop without bottom notch, the distributed keyway waterstop without bottom notch, or the continuous keyway waterstop without bottom notch described in step one is as follows:

[0022] The flat waterstop without a notch at the bottom is prepared by using a flat metal strip, or by preparing a right-angled bend at the bottom of the flat waterstop without a notch.

[0023] The distributed keyway waterstop with no notch at the bottom is prepared by using a flat metal strip, or by preparing a metal strip with bends, and preparing distributed keyways on the metal strip, and preparing right-angle bends at the bottom of the distributed keyway waterstop with no notch at the bottom.

[0024] The continuous keyway waterstop without a notch at the bottom is prepared by using a flat metal strip. A continuous keyway is prepared on the metal strip, and a right-angle bend is prepared at the bottom of the continuous keyway waterstop without a notch at the bottom.

[0025] The keyway is a protrusion or recess relative to the plane of the metal plate; the continuous keyway is a longitudinal continuous groove with a notch at the bottom, which is a protrusion or recess of the waterstop strip.

[0026] Through the above design scheme, the present invention can bring the following beneficial effects: A method for constructing construction joints in a waterproof concrete wall, since the construction joint is left at the top elevation of the concrete base slab or floor concrete slab, both the concrete base slab or floor concrete slab and the waterproof concrete wall concrete are poured in one go, ensuring quality, facilitating construction, improving construction efficiency, and reducing construction costs; simultaneously, since the construction joint is located in the middle of the waterstop, it plays a waterproof role, ensuring that no leakage occurs. The distributed or continuous keyways on the waterstop of the waterproof concrete wall construction joint help ensure the structural performance of the waterproof concrete wall, while the toothed bottom edge, notch, and right-angle bend facilitate the connection and fixation of the waterstop of the waterproof concrete wall construction joint with adjacent reinforcing bars. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0028] Figure 1 This is a cross-sectional schematic diagram of a flat waterstop with a notch at the bottom in this invention.

[0029] Figure 2 This is a schematic diagram of the elevation of the flat waterstop with a notch at the bottom in this invention;

[0030] Figure 3 This is a cross-sectional schematic diagram of the distributed keyway waterstop with a notch at the bottom in this invention;

[0031] Figure 4 This is a schematic diagram of the elevation of the distributed keyway waterstop with a notch at the bottom in this invention.

[0032] Figure 5 This is a cross-sectional schematic diagram of the continuous keyway waterstop with a notch at the bottom in this invention;

[0033] Figure 6 This is a schematic diagram of the elevation of the continuous keyway waterstop with a notch at the bottom in this invention.

[0034] Figure 7 This is a schematic cross-sectional view of a waterproof concrete wall with a flat waterstop strip with a notch at the bottom inserted, as described in this invention.

[0035] Figure 8 This is a schematic cross-sectional view of a waterproof concrete wall with a distributed keyway waterstop strip with a notch at the bottom, as described in this invention.

[0036] Figure 9 This is a schematic cross-sectional view of a waterproof concrete wall with a continuous keyway waterstop strip with a notch at the bottom, as described in this invention.

[0037] Figure 10 This is a schematic cross-sectional view of the flat waterstop strip without a notch at the bottom in this invention;

[0038] Figure 11 This is a schematic diagram of the elevation of the flat waterstop strip without a notch at the bottom in this invention;

[0039] Figure 12 This is a cross-sectional schematic diagram of the distributed keyway waterstop strip without a notch at the bottom in this invention;

[0040] Figure 13 This is a schematic diagram of the elevation of the distributed keyway waterstop strip without a notch at the bottom in this invention;

[0041] Figure 14 This is a schematic cross-sectional view of the continuous keyway waterstop strip without a notch at the bottom in this invention;

[0042] Figure 15 This is a schematic diagram of the elevation of the continuous keyway waterstop strip without a notch at the bottom in this invention;

[0043] Figure 16 This is a schematic cross-sectional view of a waterproof concrete wall with a flat waterstop strip without a notch at the bottom inserted, as described in this invention.

[0044] Figure 17 This is a schematic cross-sectional view of a waterproof concrete wall with a distributed keyway waterstop strip without a notch at the bottom, as described in this invention.

[0045] Figure 18 This is a schematic cross-sectional view of a waterproof concrete wall with a continuous keyway waterstop strip without a notch at the bottom, as described in this invention.

[0046] Figure 19 The image shows a steel plate waterstop installed at the construction joint of a waterproof concrete wall before pouring concrete, which is the background technology of this invention.

[0047] Figure 20 The image shown is a picture of the concrete poured at the construction joint of a waterproof concrete wall, which serves as the background technology of this invention.

[0048] In the diagram, 101-flat waterstop with a notch at the bottom, 102-distributed keyway waterstop with a notch at the bottom, 103-continuous keyway waterstop with a notch at the bottom, 104-flat waterstop without a notch at the bottom, 105-distributed keyway waterstop without a notch at the bottom, 106-continuous keyway waterstop without a notch at the bottom, 201-keyway, 202-continuous keyway, 3-toothed bottom edge, 301-notch, 4-concrete base slab, 5-waterproof concrete wall, 6-floor concrete slab, 7-continuous reinforcing bar, 8-construction joint, 9-angle bend, 10-right angle bend. Detailed Implementation

[0049] A method for constructing construction joints in waterproof concrete walls, primarily employing a waterproof concrete wall construction joint waterstop, such as... Figures 1 to 18 As shown, the waterproof concrete wall construction joint waterstop includes a waterstop with a notch at the bottom and a waterstop without a notch at the bottom;

[0050] Among them, the waterstop strip with a notch at the bottom includes three forms, namely: Figure 1 and Figure 2 The flat waterstop 101 shown has a notch at the bottom, or as shown in the image. Figure 3 and Figure 4 The distributed keyway waterstop 102 shown has a notch at the bottom, or as shown in the image. Figure 5 and Figure 6 The continuous keyway waterstop 103 shown has a notch at the bottom and is provided with a toothed bottom edge 3 and a notch 301.

[0051] like Figure 1As shown, the flat waterstop 101 with a notch at the bottom is a flat metal plate or has a bend 9; the bend 9 is a bending angle between the upper section of the flat waterstop 101 with a notch at the bottom or the lower section of the distributed keyway waterstop 102 with a notch at the bottom; for example Figure 3 and Figure 4 As shown, the distributed keyway waterstop 102 with a notch at the bottom is a flat metal plate or has a bend 9, and the metal plate has distributed keyways 201; the keyways 201 are protrusions or depressions relative to the plane of the flat metal plate; as Figure 5 and Figure 6 The continuous keyway waterstop 103 with a notch at the bottom shown is a metal plate with a continuous keyway 202; the continuous keyway 202 is a longitudinal continuous groove that protrudes or is recessed relative to the continuous keyway waterstop 103 with a notch at the bottom; as shown Figures 1-6 As shown, the toothed bottom edge 3 is provided at the bottom of the flat waterstop 101 with a notch at the bottom, or the distributed keyway waterstop 102 with a notch at the bottom, or the continuous keyway waterstop 103 with a notch at the bottom, and is provided with a notch 301; the notch 301 is concave upward from the bottom of the flat waterstop 101 with a notch at the bottom, or the distributed keyway waterstop 102 with a notch at the bottom, or the continuous keyway waterstop 103 with a notch at the bottom.

[0052] The bottom-sealed waterstop includes three types: such as... Figure 10 and Figure 11 The flat waterstop 104 shown has no notch at the bottom, or as shown in the image. Figure 12 and Figure 13 The distributed keyway waterstop 105 shown has no notch at the bottom, or as shown in the image. Figure 14 and Figure 15 The continuous keyway waterstop 106 shown has no notch at the bottom;

[0053] like Figures 10-15 As shown, the bottom of the flat waterstop 104 without a notch at the bottom, the distributed keyway waterstop 105 without a notch at the bottom, and the continuous keyway waterstop 106 without a notch at the bottom are straight edges and have right angle bends 10.

[0054] Example 1:

[0055] A method for constructing construction joints in a waterproof concrete wall includes the following steps, which are performed sequentially:

[0056] Step 1: Prepare the waterstop for the construction joint of the waterproof concrete wall.

[0057] like Figures 1-6As shown, the waterstop for the construction joint of the waterproof concrete wall includes a flat waterstop 101 with a notch at the bottom, a distributed keyway waterstop 102 with a notch at the bottom, or a continuous keyway waterstop 103 with a notch at the bottom.

[0058] like Figure 1 and Figure 2 As shown, the flat waterstop 101 with a notch at the bottom is prepared by using a flat metal strip, or by preparing a folded angle 9. A toothed bottom edge 3 and a notch 301 are prepared at the bottom of the flat waterstop 101 with a notch at the bottom.

[0059] like Figure 3 and Figure 4 As shown, the distributed keyway waterstop 102 with a notch at the bottom is prepared by using a flat metal strip or by preparing a bent angle 9. Distributed keyways 201 are prepared on the metal strip, and a toothed bottom edge 3 and a notch 301 are prepared at the bottom of the distributed keyway waterstop 102 with a notch at the bottom.

[0060] like Figure 5 and Figure 6 As shown, the through-line keyway waterstop 103 with a notch at the bottom is prepared by using a planar metal strip. A through-line keyway 202 is prepared on the metal strip. A toothed bottom edge 3 and a notch 301 are prepared at the bottom of the through-line keyway waterstop 103 with a notch at the bottom.

[0061] Step 2: Install the waterstop at the construction joint of the waterproof concrete wall.

[0062] like Figures 7-9 As shown, when binding the reinforcing bars during the construction of the concrete base slab 4 or the floor concrete slab 6, a continuous reinforcing bar 7 is placed in the middle of the construction joint 8. A flat waterstop 101 with a notch at the bottom, or a distributed keyway waterstop 102 with a notch at the bottom, or a continuous keyway waterstop 103 with a notch at the bottom is placed upright close to the continuous reinforcing bar 7. The top reinforcing bar of the concrete base slab 4 or the floor concrete slab 6, which is arranged perpendicular to the continuous reinforcing bar 7, is inserted into the notch 301 of the flat waterstop 101 with a notch at the bottom, or the distributed keyway waterstop 102 with a notch at the bottom, or the continuous keyway waterstop 103 with a notch at the bottom. The flat waterstop 101 with a notch at the bottom, or the distributed keyway waterstop 102 with a notch at the bottom, or the continuous keyway waterstop 103 with a notch at the bottom, is fixedly connected to the continuous reinforcing bar 7 and the top reinforcing bar of the concrete base slab 4 or the floor concrete slab 6 by spot welding, thus completing the waterstop installation of the construction joint of the waterproof concrete wall.

[0063] Step 3: Pour concrete for the base slab or floor slab.

[0064] like Figures 7-9As shown, the concrete base slab 4 or floor concrete slab 6 is poured according to the usual practice. A construction joint 8 for a waterproof concrete wall 5 is left at the top elevation of the concrete base slab 4 and floor concrete slab 6. The lower section of the flat waterstop 101 with a notch at the bottom, or the distributed keyway waterstop 102 with a notch at the bottom, or the continuous keyway waterstop 103 with a notch at the bottom, including the toothed bottom edge 3 and its notch 301, is embedded in the concrete below the construction joint 8. The upper section of the flat waterstop 101 with a notch at the bottom, or the distributed keyway waterstop 102 with a notch at the bottom, or the continuous keyway waterstop 103 with a notch at the bottom is exposed above the construction joint 8.

[0065] Step 4: Pour the waterproof concrete wall

[0066] like Figures 7-9 As shown, the steel bars of the waterproof concrete wall 5 are tied according to the usual practice, the formwork of the waterproof concrete wall 5 is supported, and then the concrete of the waterproof concrete wall 5 is poured. The upper part of the construction joint 8, which is exposed at the top, is a flat waterstop 101 with a notch at the bottom, or a distributed keyway waterstop 102 with a notch at the bottom, or a continuous keyway waterstop 103 with a notch at the bottom. The upper part of the construction joint 8 is embedded in the concrete of the waterproof concrete wall 5, and a construction joint construction method of the waterproof concrete wall is completed.

[0067] Example 2:

[0068] A method for constructing construction joints in a waterproof concrete wall includes the following steps, which are performed sequentially:

[0069] Step 1: Prepare the waterstop for the construction joint of the waterproof concrete wall.

[0070] like Figures 10-15 As shown, the waterstop for the construction joint of the waterproof concrete wall includes a flat waterstop 104 with no notch at the bottom, a distributed keyway waterstop 105 with no notch at the bottom, or a continuous keyway waterstop 106 with no notch at the bottom.

[0071] like Figure 10 and Figure 11 As shown, the flat waterstop 104 without a notch at the bottom is prepared by using a flat metal strip, or by preparing a right angle 10 at the bottom of the flat waterstop 104 without a notch at the bottom.

[0072] like Figure 12 and Figure 13 As shown, the distributed keyway waterstop 105 without bottom notches is prepared by using a flat metal strip, or by preparing a bent angle 9, and a distributed keyway 201 is prepared on the metal strip, and a right-angle bent angle 10 is prepared at the bottom of the distributed keyway waterstop 105 without bottom notches.

[0073] like Figure 14 and Figure 15As shown, the continuous keyway waterstop 106 without a notch at the bottom is prepared by using a planar metal strip. A continuous keyway 202 is prepared on the metal strip, and a right angle bend 10 is prepared at the bottom of the continuous keyway waterstop 106 without a notch at the bottom.

[0074] Step 2: Install the waterstop at the construction joint of the waterproof concrete wall.

[0075] like Figures 16-18 As shown, when binding the reinforcing bars during the construction of the concrete base slab 4 or the floor concrete slab 6, a continuous reinforcing bar 7 is placed in the middle of the construction joint 8. A flat waterstop 104, a distributed keyway waterstop 105, or a continuous keyway waterstop 106 without a notch at the bottom is placed upright close to the continuous reinforcing bar 7. The flat waterstop 104, the distributed keyway waterstop 105, or the continuous keyway waterstop 106 without a notch at the bottom are fixedly connected to the continuous reinforcing bar 7 and the top reinforcing bar of the concrete base slab 4 or the floor concrete slab 6 by spot welding, thus completing the waterstop layout of the construction joint of the waterproof concrete wall.

[0076] Step 3: Pour concrete for the base slab or floor slab.

[0077] like Figures 16-18 As shown, the concrete base slab 4 or floor concrete slab 6 is poured according to the usual practice. A construction joint 8 for a waterproof concrete wall 5 is left at the top elevation of the concrete base slab 4 and floor concrete slab 6. The lower section of the flat waterstop 104 without bottom notch, or the distributed keyway waterstop 105 without bottom notch, or the continuous keyway waterstop 106 without bottom notch is embedded in the concrete below the construction joint 8. The upper section of the flat waterstop 104 without bottom notch, or the distributed keyway waterstop 105 without bottom notch, or the continuous keyway waterstop 106 without bottom notch is exposed above the construction joint 8.

[0078] Step 4: Pour the waterproof concrete wall

[0079] like Figures 16-18 As shown, the steel bars of the waterproof concrete wall 5 are tied according to the usual practice, the formwork of the waterproof concrete wall 5 is supported, and then the concrete of the waterproof concrete wall 5 is poured. The upper part of the flat waterstop 104 with no bottom notch, or the distributed keyway waterstop 105 with no bottom notch, or the continuous keyway waterstop 106 with no bottom notch exposed at the top of the construction joint 8 is buried in the concrete of the waterproof concrete wall 5, and the construction joint construction method of the waterproof concrete wall is completed.

[0080] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be included within the scope of protection of the present invention. Furthermore, all content not described in detail in this specification is prior art known to those skilled in the art.

Claims

1. A method for constructing construction joints in a waterproof concrete wall, characterized by: The steps are as follows, and they are performed in sequence: Step 1: Prepare waterproof concrete wall construction joint waterstops, including waterstops with notches at the bottom and waterstops without notches at the bottom; The waterstops with notches at the bottom are all provided with notches (301), namely, a flat waterstop with notches at the bottom (101), a distributed keyway waterstop with notches at the bottom (102), or a continuous keyway waterstop with notches at the bottom (103). The bottom-no-notch waterstops are respectively a flat waterstop (104) with no bottom notch, a distributed keyway waterstop (105) with no bottom notch, or a continuous keyway waterstop (106) with no bottom notch. Step 2: Install waterproof concrete wall construction joint waterstop When binding the reinforcing bars in the concrete base slab (4) or floor concrete slab (6), a continuous reinforcing bar (7) is placed in the middle of the construction joint (8). The waterstop with a notch at the bottom prepared in step one is placed close to the continuous reinforcing bar (7). The top reinforcing bar of the concrete base slab (4) or floor concrete slab (6) arranged perpendicular to the continuous reinforcing bar (7) is inserted into the notch (301) of the waterstop at the construction joint of the waterproof concrete wall. The waterstop with a notch at the bottom is fixedly connected to the continuous reinforcing bar (7) and the top reinforcing bar of the concrete base slab (4) or floor concrete slab (6) by spot welding, thus completing the installation of the waterstop at the construction joint of the waterproof concrete wall. When binding the reinforcing bars in the construction of the concrete base slab (4) or the floor concrete slab (6), a continuous reinforcing bar (7) is placed in the middle of the construction joint (8). The bottom-no-gap waterstop prepared in step one is placed close to the continuous reinforcing bar (7). The bottom-no-gap waterstop is fixedly connected to the continuous reinforcing bar (7) and the top reinforcing bar of the concrete base slab (4) or the floor concrete slab (6) by spot welding, thus completing the waterstop installation of the construction joint of the waterproof concrete wall. Step 3: Pour concrete for the base slab or floor slab. Pour concrete into a concrete base slab (4) or a floor concrete slab (6). Leave a construction joint (8) for a waterproof concrete wall (5) at the top elevation of the concrete base slab (4) and the floor concrete slab (6). The lower section of the waterproof concrete wall construction joint waterstop is embedded in the concrete below the construction joint (8), and the upper section is exposed above the construction joint (8). Step 4: Pour the waterproof concrete wall The steel bars of the waterproof concrete wall (5) are tied, the formwork of the waterproof concrete wall (5) is supported, and the concrete of the waterproof concrete wall (5) is poured. The upper part of the waterproof concrete wall construction joint waterstop exposed above the construction joint (8) is buried in the concrete of the waterproof concrete wall (5). Thus, a construction joint construction method of a waterproof concrete wall is completed.

2. The construction joint method for a waterproof concrete wall according to claim 1, characterized in that: the preparation method of the flat waterstop (101) with a notch at the bottom, the distributed keyway waterstop (102) with a notch at the bottom, or the continuous keyway waterstop (103) with a notch at the bottom in step one is as follows: The flat waterstop (101) with a notch at the bottom is prepared by using a flat metal strip or by preparing a folded corner (9). A toothed bottom edge (3) and a notch (301) are prepared at the bottom of the flat waterstop (101) with a notch at the bottom. The distributed keyway waterstop (102) with a notch at the bottom is prepared by using a flat metal strip or by preparing a folded corner (9). Distributed keyways (201) are prepared on the metal strip. A toothed bottom edge (3) and a notch (301) are prepared at the bottom of the distributed keyway waterstop (102) with a notch at the bottom. The long keyway waterstop (103) with a notch at the bottom is prepared by using a planar metal strip. A long keyway (202) is prepared on the metal strip. A toothed bottom edge (3) and a notch (301) are prepared at the bottom of the long keyway waterstop (103) with a notch at the bottom.

3. The construction joint method for a waterproof concrete wall according to claim 1, characterized in that: The preparation methods for the flat waterstop (104) without bottom notches, the distributed keyway waterstop (105) without bottom notches, or the continuous keyway waterstop (106) without bottom notches described in step one are as follows: The flat waterstop (104) without a notch at the bottom is prepared by using a flat metal strip, or by preparing a folded corner (9), and a right-angled corner (10) is prepared at the bottom of the flat waterstop (104) without a notch at the bottom. The distributed keyway waterstop (105) without bottom notch is prepared by using a flat metal strip or by preparing a bend (9), and a distributed keyway (201) is prepared on the metal strip, and a right angle bend (10) is prepared at the bottom of the distributed keyway waterstop (105) without bottom notch. The continuous keyway waterstop (106) without bottom notch is prepared by using a planar metal strip, and a continuous keyway (202) is prepared on the metal strip. A right angle bend (10) is prepared at the bottom of the continuous keyway waterstop (106) without bottom notch.

4. A construction joint method for a waterproof concrete wall according to claim 2 or 3, characterized in that: The keyway (201) is a protrusion or depression relative to the plane of the flat metal plate; the through keyway (202) is a longitudinal through groove that protrudes or is recessed relative to the through keyway waterstop (103) with a notch at the bottom.

Images