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CN-224213228-U - Water stop sheet mounting structure between new and old concrete of floodgate culvert

CN224213228UCN 224213228 UCN224213228 UCN 224213228UCN-224213228-U

Abstract

The utility model relates to a water stop sheet mounting structure between new and old concrete of a gate culvert. The novel concrete structure comprises a cutting groove arranged in the middle of the vertical face of the old concrete structure, a water-swelling water stop belt is arranged in the cutting groove, a water stop sheet is arranged in the cutting groove, the inner end edge of the water stop sheet is in contact with the water-swelling water stop belt, a left pressing plate and a right pressing plate are arranged on the vertical face of the old concrete structure, the two pressing plates clamp the water stop sheet, a grouting body is formed by grouting the inside of the cutting groove, an epoxy mortar layer covering the pressing plates is arranged on the vertical face of the old concrete structure, a polyethylene high-pressure closed hole plate is arranged on the outer side of the epoxy mortar layer, the outer side edge of the polyethylene high-pressure closed hole plate is in contact with the water stop sheet, and the part of the water stop sheet, which is positioned outside, is integrally cast and formed in the novel concrete structure, and the polyethylene high-pressure closed hole plate is positioned between the epoxy mortar layer and the vertical face of the novel concrete structure. The utility model overcomes the defects of weak installation, poor water stopping effect and inconvenient construction of the water stopping sheet of the existing installation structure.

Inventors

  • GUO PIN
  • SONG YANLEI
  • ZHANG RUIHANG

Assignees

  • 中交天航环保工程有限公司

Dates

Publication Date
20260508
Application Date
20250513

Claims (7)

  1. 1. A water stop sheet mounting structure between new and old concrete is mounted between an old concrete structure (1) and a new concrete structure (2), and is characterized by comprising a cutting groove (3) arranged in the middle of the vertical face of the old concrete structure (1), a water stop sheet (7) capable of expanding when meeting water is mounted in the cutting groove (3), a water stop sheet (4) is arranged in the cutting groove (3), the inner end edge of the water stop sheet (4) is in contact with the water stop sheet (7), a left pressing plate (5) and a right pressing plate (5) are mounted on the vertical face of the old concrete structure (1), the water stop sheet (4) is clamped by the two pressing plates (5), a grouting body (6) is formed in the inner grouting of the cutting groove (3), an epoxy mortar layer (11) covering the pressing plates (5) is arranged on the vertical face of the old concrete structure (1), a polyethylene high-pressure plate (12) is arranged on the outer side of the epoxy mortar layer (11), the outer side edge of the polyethylene high-pressure closed-pore plate (12) is in contact with the water stop sheet (4), and a pouring part of the water stop sheet (4) is located between the new concrete structure (2) and the epoxy mortar layer (2) which is integrally formed.
  2. 2. The structure for installing the water stop between the new concrete and the old concrete of the gate culvert as claimed in claim 1 is characterized in that the two pressing plates (5) are respectively installed and fixed on the vertical face of the old concrete structure (1) by adopting expansion bolts.
  3. 3. The structure for installing the water stop sheet between new and old concrete of the gate culvert as claimed in claim 2, wherein grouting holes (9) are formed in the inner edges of the two pressing plates (5), and grouting equipment is used for grouting into the cutting grooves (3) through the grouting holes (9) to form the grouting body (6).
  4. 4. The structure for installing the water stop sheet between new and old concrete of the gate culvert as claimed in claim 3, wherein the root of the exposed part of the water stop sheet (4) is provided with a bulge facing the back surface, and the outer side edge of the polyethylene high-pressure closing orifice plate (12) is embedded into the bulge.
  5. 5. The structure for installing the water stop sheet between the new concrete and the old concrete of the gate culvert as claimed in claim 4 is characterized in that foam rubber (8) is filled in a gap between the two pressing plates (5) and the water stop sheet (4).
  6. 6. The structure for installing the water stop between new and old concrete of the gate culvert as claimed in claim 5, wherein the edges of the two ends of the water stop (4) are provided with bending parts, and the bending parts positioned in the cutting grooves (3) are contacted with the water-swelling water stop belt (7).
  7. 7. The mounting structure of the water stop sheet between new and old concrete and gate culvert is characterized in that the water stop sheet (4) is made of red copper, the width is 30-40 mm, the depth of a cutting groove (3) is 15-20 cm, the width is 3-5 cm, the pressing plate (5) is a stainless steel plate, the width is 10-15 cm, the thickness is 5-10 mm, the thickness of a water expansion water stop belt (7) is 10-20 mm, and the thickness of an epoxy mortar layer (11) is 5-10 mm.

Description

Water stop sheet mounting structure between new and old concrete of floodgate culvert Technical Field The utility model belongs to the field of water stop installation between new and old concrete structures of water conservancy gate culverts, and particularly relates to a water stop sheet installation structure between new and old concrete structures of gate culverts. Background In the process of dismantling reconstruction engineering or renewing engineering of the inverted siphon gate and the box culvert engineering of the hydraulic engineering, in order to adapt to different sedimentation deformation characteristics of the new structure and the old structure, deformation joints are generally required to be arranged at the joints of the new structure and the old structure, and water stop sheets are installed to meet the requirements of structural water resistance and leakage prevention. The common construction method is to drill deep grooves on old concrete structures, install water stopping sheets, fill concrete or asphalt in the grooves, and fix the water stopping sheets. By adopting the method, the filling of concrete or asphalt is inconvenient, the filling is difficult to ensure to be compact, the adhesion force between the concrete or asphalt water stop sheets and the old concrete structure is not strong, the concrete or asphalt water stop sheets and the old concrete structure are easy to loosen and fall off under the settlement deformation pressure and the water pressure, and the risk of water leakage is high. In the technology of expansion anchoring water stop sheets in shallow notch grooves newly appeared in recent years, the problem that holes are needed to be drilled on the water stop sheets is easy to cause leakage of the water stop sheets, the shallow notch grooves are inconvenient to construct, the base surfaces are uneven, and the actual operation effect is poor. In summary, a novel gate culvert new and old concrete water stop sheet mounting structure needs to be developed and designed to solve the technical problems. Disclosure of utility model The utility model aims to provide a water stop sheet mounting structure between new and old concrete of a gate and a culvert, and overcomes the defects of unstable water stop sheet mounting, poor water stop effect and inconvenient construction existing at present. The utility model adopts the technical scheme that the gate culvert new and old concrete water stop sheet mounting structure is mounted between an old concrete structure and a new concrete structure, comprises a cutting groove arranged in the middle of the vertical face of the old concrete structure, a water stop belt which expands when meeting water is mounted in the cutting groove, a water stop sheet is arranged in the cutting groove, the inner end edge of the water stop sheet is contacted with the water stop belt which expands when meeting water, a left pressing plate and a right pressing plate are mounted on the vertical face of the old concrete structure, the two pressing plates clamp the water stop sheet, grouting is carried out in the cutting groove to form a grouting body, an epoxy mortar layer covering the pressing plates is arranged on the vertical face of the old concrete structure, a polyethylene high-pressure closed pore plate is arranged outside the epoxy mortar layer, the outer edge of the polyethylene high-pressure closed pore plate is contacted with the water stop sheet, the water stop sheet is positioned outside the new concrete structure through integral casting, and the polyethylene high-pressure closed pore plate is positioned between the epoxy mortar layer and the vertical face of the new concrete structure. Preferably, the two pressure plates are each mounted and secured to the facade of the old concrete structure using expansion bolts. Preferably, grouting holes are formed in the inner edges of the two pressing plates, and grouting equipment is used for grouting into the cutting grooves through the grouting holes to form the grouting body. Preferably, the root of the exposed part of the water stop sheet is provided with a protrusion facing the back surface, and the outer side edge of the polyethylene high-pressure closing orifice plate is embedded into the protrusion. Preferably, the gap between the two pressing plates and the water stop sheet is filled with foam glue. Preferably, the two end edges of the water stop sheet are provided with bending parts, and the bending parts positioned in the cutting grooves are contacted with the water stop belt which expands when meeting water. Preferably, the water stop sheet is made of red copper, the width is 30-40 mm; the depth of the cutting groove is 15-20 cm, the width is 3-5 cm; the pressing plate is a stainless steel plate, the width is 10-15 cm, the thickness is 5-10 mm, the thickness of the water-swelling water stop belt is 10-20 mm, and the thickness of the epoxy mortar layer is 5-10 mm. The utility model has the advan