A type of sealing wall base plate force transmission strip

Abstract

The present invention discloses a bottom plate force transmission belt at a blocking wall, comprising: a force transmission belt body connected between a structural bottom plate and the blocking wall, wherein the main reinforcement of the structural bottom plate extends into the force transmission plate belt body; a waterproof structure connected between the force transmission belt body and the structural bottom plate; the force transmission belt body comprises an upper fine sand backfill body covering the upper main reinforcement of the structural bottom plate, a lower fine sand backfill body covering the lower main reinforcement of the structural bottom plate, and a middle plain concrete backfill body located between the upper fine sand backfill body and the lower fine sand backfill body; the waterproof structure comprises a waterstop belt arranged on the bottom surface of the connection between the lower fine sand backfill body and the structural bottom plate, and a waterstop steel plate located above the waterstop belt and fixed to the structural bottom plate. The present invention solves the waterproof problem of the bottom plate force transmission belt at the blocking wall and improves the construction quality.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to a bottom plate force transmission belt at a blocking wall. Background Art

[0002] As the country vigorously develops urban infrastructure construction, more and more subway stations are being built. According to the construction procedures of subway stations, the end pit of the subway station is generally excavated and constructed first, and the structure is constructed to facilitate the launch or reception of shield machinery. The end pit needs to be closed by the surrounding ground-connected wall retaining structure to form a water-stop curtain. When the structural bottom plate is constructed to the blocking wall, a construction joint needs to be left and backfilled with concrete to serve as the bottom plate force transmission belt. The waterproofing method and subsequent treatment at this location are relatively difficult. Improper treatment may easily lead to structural leakage or concrete quality defects, resulting in insufficient structural strength. This poses a great challenge to related subway projects with tight construction periods and high quality requirements. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a bottom plate force transmission belt at the blocking wall, which has a better water-stopping effect, protects the main reinforcement joints of the bottom plate, and is easy to remove later.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention includes: a force transmission belt body connected between the structural bottom plate and the blocking wall, the main reinforcement of the structural bottom plate extending into the force transmission belt body; a waterproof structure connected between the force transmission belt body and the structural bottom plate;

[0005] The force transmission belt body includes an upper fine sand backfill body covering the upper main reinforcement of the structural bottom plate, a lower fine sand backfill body covering the lower main reinforcement of the structural bottom plate, and a middle plain concrete backfill body located between the upper fine sand backfill body and the lower fine sand backfill body;

[0006] The waterproof structure includes a waterstop belt arranged on the bottom surface of the connection between the lower fine sand backfill body and the structural bottom plate, and a waterstop steel plate located above the waterstop belt and fixed to the structural bottom plate.

[0007] A further improvement of the bottom plate force transmission belt at the sealing wall of the present invention is that a notch is provided at the position of the structural bottom plate corresponding to the upper fine sand backfill body, the upper main reinforcement extends into the notch and does not protrude out of the notch, and the middle plain concrete backfill body and the lower fine sand backfill body are extended from the side where the upper fine sand backfill body is connected to the structural bottom plate and fill the notch.

[0008] A further improvement of the bottom plate force transmission belt at the blocking wall of the present invention is that a closing steel wire mesh is laid at the edge of the structural bottom plate, and oil felt is laid on the closing steel wire mesh.

[0009] A further improvement of the bottom plate force transmission belt at the sealing wall of the present invention is that the waterstop belt is arranged along the entire length of the connection between the lower fine sand backfill body and the structural bottom plate, and one side of the waterstop belt extends into the structural bottom plate, and the other side extends to the lower fine sand backfill position, one end of the waterstop steel plate is fixed in the structural bottom plate, and the other end extends into the upper fine sand backfill body.

[0010] The present invention also provides a method for constructing a bottom plate force transmission belt at a blocking wall, comprising the steps of:

[0011] The area between the structural base plate and the blocking wall is divided from bottom to top into a lower fine sand backfill area, a middle plain concrete backfill area, and an upper fine sand backfill area.

[0012] Providing a water stop strip, and arranging the water stop strip at the connection between the structural bottom plate and the lower fine sand backfill area;

[0013] Tie the structural bottom plate reinforcement cage in the to-be-constructed area of ​​the structural bottom plate, so that the upper main reinforcement extends to the upper fine sand backfill area, and the lower main reinforcement extends to the lower fine sand backfill area;

[0014] A waterstop steel plate is arranged above the waterstop belt, and one end of the waterstop steel plate is fixed to the steel cage of the structural bottom plate;

[0015] Carry out lower fine sand backfilling in the lower fine sand backfilling area;

[0016] Casting of structural bottom slab and backfilling of plain concrete in the middle plain concrete backfill area;

[0017] Carry out upper fine sand backfill in the upper fine sand backfill area.

[0018] A further improvement in the construction method of the bottom plate force transmission belt at the sealing wall of the present invention is that when the waterstop belt is set at the connection between the structural bottom plate and the lower fine sand backfill area, the waterstop belt is set along the entire length of the connection between the lower fine sand backfill area and the area to be constructed of the structural bottom plate, and one side of the waterstop belt extends to the area to be constructed of the structural bottom plate, and the other side extends to the lower fine sand backfill area.

[0019] A further improvement in the construction method of the bottom plate force transmission belt at the sealing wall of the present invention is that when tying the structural bottom plate reinforcement cage, a gap is formed at a position corresponding to the upper fine sand backfill body, so that the upper main reinforcement extends into the gap but does not protrude out of the gap.

[0020] A further improvement in the construction method of the bottom plate force transmission belt at the sealing wall of the present invention is that after the structural bottom plate steel cage is tied and before the water stop steel plate is installed, the closing wire mesh and oil felt are laid in sequence along the outer edge of the steel cage of the structural bottom plate.

[0021] A further improvement in the construction method of the bottom plate force transfer belt at the sealing wall of the present invention is that when fixing the waterstop steel plate, one end of the waterstop steel plate is connected to the steel cage of the structural bottom plate, and the other end extends into the upper fine sand backfill area of ​​the force transfer belt body.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] 1. By providing the water stop strip and the water stop steel plate, water leakage is prevented from causing insufficient structural strength.

[0024] 2. The force transfer belt body is formed by combining fine sand backfill and plain concrete backfill, which plays the role of a force transfer belt and protects the main reinforcement joints of the structural bottom plate at the same time.

[0025] 3. By providing the oil felt, it is convenient to chisel out the plain concrete backfill at a later time without damaging the structural bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a front view of the bottom plate force transmission belt at the blocking wall of the present invention.

[0028] Figure 2 The present invention is a construction flow chart of the bottom plate force transmission belt at the blocking wall.

[0029] In the figure: 1. Structural base plate; 2. Sealing wall; 3. Upper fine sand backfill body; 4. Lower fine sand backfill body; 5. Waterstop; 6. Waterstop steel plate; 7. Closing wire mesh; 8. Oil felt; 9. Upper main reinforcement; 10. Lower main reinforcement. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0031] The bottom plate force transmission belt at the blocking wall 2 of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] See also Figure 1-2As shown, the bottom plate force transmission belt at the blocking wall 2 includes: a force transmission belt body connected between the structural bottom plate 1 and the blocking wall 2, the main reinforcement of the structural bottom plate 1 extending into the force transmission belt body; a waterproof structure connected between the force transmission belt body and the structural bottom plate 1;

[0033] The force transmission belt body comprises an upper fine sand backfill body 3 covering the upper main reinforcement 9 of the structural bottom plate 1, a lower fine sand backfill body 4 covering the lower main reinforcement 10 of the structural bottom plate 1, and a middle plain concrete backfill body located between the upper fine sand backfill body 3 and the lower fine sand backfill body 4. The force transmission belt body is formed by combining the fine sand backfill and the plain concrete backfill, which plays the role of the force transmission belt and protects the main reinforcement joints of the structural bottom plate 1 at the same time.

[0034] The waterproof structure includes a waterstop belt 5 arranged on the bottom surface of the connection between the lower fine sand backfill body 4 and the structural base plate 1, and a waterstop steel plate 6 located above the waterstop belt 5 and fixed to the structural base plate 1. By arranging the waterstop belt 5 and the waterstop steel plate 6, water leakage can be prevented from causing insufficient structural strength.

[0035] Preferably, the structural base plate 1 is provided with a notch corresponding to the position of the upper fine sand backfill body 3, the upper main reinforcement 9 extends into the notch and does not protrude out of the notch, and the side of the upper fine sand backfill body 3 connected to the structural base plate 1 extends out of the middle plain concrete backfill body and the lower fine sand backfill body 4 and fills the notch.

[0036] Specifically, the upper fine sand backfill body 3, the middle plain concrete backfill body and the lower fine sand backfill body 4 are flush with the side connected to the blocking wall, and the middle plain concrete backfill body and the lower fine sand backfill body 4 are flush with the side connected to the structural base plate 1.

[0037] Preferably, a closing steel mesh 7 is laid at the edge of the structural base plate 1, and oil felt 8 is laid on the closing steel mesh 7. The closing steel mesh 7 is used to separate the structural base plate 1 and the force transmission plate belt, so that the structural base plate 1 and the force transmission plate belt can be constructed separately at a later stage. The oil felt 8 is provided to facilitate the removal of the plain concrete backfill at a later stage without damaging the structural base plate 1.

[0038] Preferably, the waterstop strip 5 is arranged along the entire length of the connection between the lower fine sand backfill body 4 and the structural base plate 1, and one side of the waterstop strip 5 extends into the structural base plate 1, and the other side extends to the lower fine sand backfill body 4. One end of the waterstop steel plate 5 is fixed in the structural base plate 1, and the other end extends into the upper fine sand backfill body 3.

[0039] Specifically, the water-stop steel plate 6 is a U-shaped water-stop steel plate, and the opening of the U-shaped water-stop steel plate is pre-buried in the structural base plate 1 facing upward.

[0040] The present invention also provides a method for constructing two bottom plate force transmission belts of a blocking wall, comprising the steps of:

[0041] Step 1: Divide the area between the structural base plate and the blocking wall 2 from bottom to top into a lower fine sand backfill area, a middle plain concrete backfill area, and an upper fine sand backfill area.

[0042] Step 2: Provide a water stop strip 5, and stick the water stop strip 5 to the connection between the structural base plate and the lower fine sand backfill area.

[0043] Specifically, when the waterstop 5 is set at the connection between the structural base plate and the lower fine sand backfill area, the waterstop 5 is set along the entire length of the connection between the lower fine sand backfill area and the construction area of ​​the structural base plate, and one side of the waterstop 5 extends to the construction area of ​​the structural base plate, and the other side extends to the lower fine sand backfill area.

[0044] Step 3, tying the steel cage of the structural bottom plate 1 in the area to be constructed of the structural bottom plate, so that the upper main reinforcement 9 extends to the upper fine sand backfill area, and the lower main reinforcement 10 extends to the lower fine sand backfill area.

[0045] Specifically, when tying the structural bottom plate reinforcement cage, a gap is formed at a position corresponding to the upper fine sand backfill body 3, so that the upper main reinforcement 9 extends into the gap but does not protrude out of the gap.

[0046] Specifically, after the steel cage of the structural bottom plate 1 is tied and before the water-stop steel plate 6 is installed, the closing steel wire mesh 7 and the oil felt 8 are laid in sequence along the outer edge of the steel cage of the structural bottom plate 1 .

[0047] Step 4: Arrange the waterstop steel plate 6 above the waterstop belt 5, and fix one end of the waterstop steel plate 6 to the steel cage of the structural bottom plate 1;

[0048] Specifically, when the water-stop steel plate 6 is fixed, one end of the water-stop steel plate 6 is connected to the steel cage of the structural bottom plate 1, and the other end extends into the upper fine sand backfill area of ​​the power transmission belt body.

[0049] Step 5: Perform lower fine sand backfilling in the lower fine sand backfilling area. The lower fine sand backfilling is provided to protect the joint of the lower main reinforcement 10.

[0050] Step 6: pouring the structural base plate 1 and backfilling the middle plain concrete backfill area with plain concrete.

[0051] Step 7: Perform upper fine sand backfilling in the upper fine sand backfilling area. By setting the upper fine sand backfilling, the joints of the upper main reinforcement 9 are protected.

[0052] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0053] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A bottom plate force transmission belt at a blocking wall, characterized in that: include: A power transmission belt body connected between the structural bottom plate and the blocking wall, wherein the main reinforcement of the structural bottom plate extends into the power transmission belt body, a closing wire mesh is laid on the edge of the structural bottom plate, and oil felt is laid on the closing wire mesh; a waterproof structure connected between the power transmission belt body and the structural bottom plate; the power transmission belt body includes an upper fine sand backfill body covering the upper main reinforcement of the structural bottom plate, a lower fine sand backfill body covering the lower main reinforcement of the structural bottom plate, and a backfill body between the upper fine sand backfill body and the lower fine sand backfill body. The middle plain concrete backfill body is a middle plain concrete backfill body, and the position of the structural bottom plate corresponding to the upper fine sand backfill body is provided with a notch, the upper main reinforcement extends into the notch and does not extend out of the notch, and the middle plain concrete backfill body and the lower fine sand backfill body are extended from the side where the upper fine sand backfill body is connected to the structural bottom plate and fill the notch; the waterproof structure includes a waterstop belt arranged on the bottom surface of the connection between the lower fine sand backfill body and the structural bottom plate, and a waterstop steel plate located above the waterstop belt and fixed to the structural bottom plate.

2. The bottom plate force transmission belt at the blocking wall as claimed in claim 1, characterized in that: The waterstop is arranged along the entire length of the connection between the lower fine sand backfill body and the structural base plate, and one side of the waterstop extends into the structural base plate, and the other side extends to the lower fine sand backfill position. One end of the waterstop steel plate is fixed in the structural base plate, and the other end extends into the upper fine sand backfill body.

3. A construction method for the bottom plate force transmission belt at the blocking wall as claimed in claim 1, characterized in that: Includes steps: The area between the structural bottom plate and the blocking wall is divided from bottom to top into the lower fine sand backfill area, the middle plain concrete backfill area, and the upper fine sand backfill area; Providing a water stop belt, and setting the water stop belt at the connection between the structural bottom plate and the lower fine sand backfill area, so that the water stop belt is arranged along the connection between the lower fine sand backfill area and the area to be constructed of the structural bottom plate, and one side of the water stop belt extends to the area to be constructed of the structural bottom plate, and the other side extends to the lower fine sand backfill area; The structural bottom plate reinforcement cage is tied in the construction area of ​​the structural bottom plate. When the structural bottom plate reinforcement cage is tied, a notch is formed at the position corresponding to the upper fine sand backfill body, so that the upper main reinforcement extends into the notch but does not extend out of the notch, so that the upper main reinforcement extends to the upper fine sand backfill area, and the lower main reinforcement extends to the lower fine sand backfill area; A waterstop steel plate is arranged above the waterstop belt, and one end of the waterstop steel plate is fixed to the steel cage of the structural bottom plate; Carry out lower fine sand backfilling in the lower fine sand backfilling area; Casting of structural bottom slab and backfilling of plain concrete in the middle plain concrete backfill area; Carry out upper fine sand backfill in the upper fine sand backfill area.

4. The construction method of the bottom plate force transmission belt at the blocking wall as claimed in claim 3 is characterized in that: After the reinforcement cage of the structural bottom plate is tied and before the water-stop steel plate is installed, the closing steel wire mesh and oil felt are laid in sequence along the outer edge of the reinforcement cage of the structural bottom plate.

5. The construction method of the bottom plate force transmission belt at the blocking wall as claimed in claim 3 is characterized in that: When fixing the water-stop steel plate, one end of the water-stop steel plate is connected to the steel cage of the structural bottom plate, and the other end extends into the upper fine sand backfill area of ​​the power transmission belt body.

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