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US-12624774-B1 - Waterproofing structure for a wall pipe in an underground construction

US12624774B1US 12624774 B1US12624774 B1US 12624774B1US-12624774-B1

Abstract

A waterproofing structure for a wall pipe in an underground construction, which includes an extension pipe connected to a casting pipe of the wall pipe and extending out of the wall; a heat shrinkable pipe sleeved on the extension pipe and extending to an inner pipe of the wall pipe, wherein the heat shrinkable pipe is correspondingly and sealedly bonded to the extension pipe and the inner pipe; and an epoxy resin adhesive. A circumferential groove is provided at the wall corresponding to a peripheral edge of the casting pipe, and the epoxy resin adhesive is filled into the circumferential groove. The epoxy resin adhesive is correspondingly and sealedly bonded to the wall and the casting pipe.

Inventors

  • ZHAOSHENG WU

Assignees

  • ZHAOSHENG WU

Dates

Publication Date
20260512
Application Date
20250303
Priority Date
20250103

Claims (10)

  1. 1 . A waterproofing structure for a wall pipe in an underground construction, comprising: an extension pipe ( 5 ) connected to a casting pipe ( 3 ) of the wall pipe and extending out of a wall ( 4 ); a heat shrinkable pipe ( 6 ) sleeved on an outer side of the extension pipe ( 5 ) and extending to an outer side of an inner pipe ( 1 ) of the wall pipe, wherein the heat shrinkable pipe ( 6 ) is correspondingly and sealedly bonded to the extension pipe ( 5 ) and the inner pipe ( 1 ); an epoxy resin adhesive ( 8 ); and a circumferential groove ( 2 ) provided at the wall ( 4 ) corresponding to a peripheral edge of the casting pipe ( 3 ), wherein the epoxy resin adhesive ( 8 ) is filled into the circumferential groove ( 2 ), and the epoxy resin adhesive ( 8 ) is correspondingly and sealedly bonded to the wall ( 4 ) and the casting pipe ( 3 ).
  2. 2 . The waterproofing structure for the wall pipe in the underground construction according to claim 1 , wherein the casting pipe ( 3 ) has a first end for being connected to the extension pipe ( 5 ), an end surface of the first end is embedded in the wall ( 4 ), and the epoxy resin adhesive ( 8 ) is further sealedly bonded to the extension pipe ( 5 ).
  3. 3 . The waterproofing structure for the wall pipe in the underground construction according to claim 1 , wherein the casting pipe ( 3 ) has a socket straight-through part ( 32 ), and the extension pipe ( 5 ) is connected to the socket straight-through part ( 32 ).
  4. 4 . The waterproofing structure for the wall pipe in the underground construction according to claim 3 , wherein the casting pipe ( 3 ) further includes a plug ( 33 ) used during casting and molding of the wall ( 4 ), the plug ( 33 ) has a first annular protrusion ( 331 ) extending to an outer periphery of the casting pipe ( 3 ), and the first annular protrusion ( 331 ) is configured to reserve the circumferential groove ( 2 ) during the casting and molding of the wall ( 4 ).
  5. 5 . The waterproofing structure for the wall pipe in the underground construction according to claim 4 , wherein the plug ( 33 ) is provided with a relief hole ( 332 ), and an extension direction of the relief hole ( 332 ) is the same as an extension direction of the casting pipe ( 3 ).
  6. 6 . The waterproofing structure for the wall pipe in the underground construction according to claim 5 , wherein the casting pipe ( 3 ) further includes a bolt ( 34 ) used during the casting and molding of the wall ( 4 ), the bolt ( 34 ) correspondingly passes through a pipe body ( 31 ) of the casting pipe ( 3 ), the socket straight-through part ( 32 ) and the relief hole ( 332 ), and the bolt ( 34 ) is configured to assemble the pipe body ( 31 ), the socket straight-through part ( 32 ), and the plug ( 33 ) into an integrated structure.
  7. 7 . The waterproofing structure for the wall pipe in the underground construction according to claim 3 , wherein a middle part of the socket straight-through part ( 32 ) has a second annular protrusion ( 321 ) facing inward, a pipe body ( 31 ) of the casting pipe ( 3 ) and the extension pipe ( 5 ) are respectively disposed on two sides of the second annular protrusion ( 321 ), and the pipe body ( 31 ) and the extension pipe ( 5 ) are correspondingly in abutment and fitting engagement with the second annular protrusion ( 321 ).
  8. 8 . The waterproofing structure for the wall pipe in the underground construction according to claim 3 , wherein an adhesive layer ( 7 ) is correspondingly provided on an inner wall of the socket straight-through part ( 32 ), between the extension pipe ( 5 ) and the heat shrinkable pipe ( 6 ), and between the inner pipe ( 1 ) and the heat shrinkable pipe ( 6 ).
  9. 9 . The waterproofing structure for the wall pipe in the underground construction according to claim 8 , wherein the adhesive layer ( 7 ) on the inner wall of the socket straight-through part ( 32 ) is solvent glue, and each of the adhesive layer ( 7 ) between the extension pipe ( 5 ) and the heat shrinkable pipe ( 6 ), and the adhesive layer ( 7 ) between the inner pipe ( 1 ) and the heat shrinkable pipe ( 6 ), is epoxy resin adhesive.
  10. 10 . The waterproofing structure for the wall pipe in the underground construction according to claim 1 , wherein a thickness of the heat shrinkable pipe ( 6 ) is between 1.5 mm and 3 mm.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATION This application claims the benefit of priority to China Patent Application No. 202520017150.7, filed on Jan. 3, 2025, in the People's Republic of China. The entire content of the above identified application is incorporated herein by reference. Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference. FIELD OF THE DISCLOSURE The present disclosure relates to the technical field of waterproofing for underground engineering, and specifically to a waterproofing structure for a wall pipe in an underground construction. BACKGROUND OF THE DISCLOSURE The wall pipes in underground engineering are critical components for waterproofing. Waterproofing treatment is required both between the casting pipe and the inner pipe of the wall pipe, as well as between the casting pipe and the wall. According to the current national standard GB50108-2008, the method involves welding a water-stopping ring on the outer side of the casting pipe, filling sealing materials and compressing rubber rings between the casting pipe and the inner pipe for waterproofing. During construction, backing materials are first filled between the casting pipe and the inner pipe on the water-facing side, followed by sealing materials. Rubber rings are then compressed between the casting pipe and the inner pipe on the non-water-facing side. Bolts are set on the outer side of the casting pipe, and a short pipe with a flange is sleeved on the outer side of the inner pipe. The flange is connected to the bolts to fix the short pipe to the casting pipe. The short pipe compresses the rubber rings, thereby securing the rubber rings between the casting pipe and the inner pipe. The aforementioned waterproof structure has defects such as a complex structure, construction difficulty, and low waterproofing reliability, such that further improvement is required. SUMMARY OF THE DISCLOSURE The objective of the present disclosure is to provide a waterproofing structure for a wall pipe in an underground construction to address the above-mentioned defects in the prior art. In order to achieve the aforementioned objective, the present disclosure provides a waterproofing structure for a wall pipe in an underground construction, including: an extension pipe connected to a casting pipe of the wall pipe and extending out of a wall; a heat shrinkable pipe sleeved on an outer side of the extension pipe and extending to an outer side of an inner pipe of the wall pipe, wherein the heat shrinkable pipe is correspondingly and sealedly bonded to the extension pipe and the inner pipe; an epoxy resin adhesive; and a circumferential groove provided at the wall corresponding to a peripheral edge of the casting pipe, wherein the epoxy resin adhesive is filled into the circumferential groove, and the epoxy resin adhesive is correspondingly and sealedly bonded to the wall and the casting pipe, respectively. In some embodiments, the casting pipe has a first end for being connected to the extension pipe, an end surface of the first end is embedded in the wall, and the epoxy resin adhesive is further sealedly bonded to the extension pipe. In some embodiments, the casting pipe has a socket straight-through part, and the extension pipe is connected to the socket straight-through part. In some embodiments, the casting pipe further includes a plug used during casting and molding of the wall, the plug has a first annular protrusion extending to an outer periphery of the casting pipe, and the first annular protrusion is configured to reserve the circumferential groove during the casting and molding of the wall. In some embodiments, the plug is provided with a relief hole, and an extension direction of the relief hole is the same as an extension direction of the casting pipe. In some embodiments, the casting pipe further includes a bolt used during the casting and molding of the wall, the bolt correspondingly passes through a pipe body of the casting pipe, the socket straight-through part and the relief hole, and the bolt is configured to assemble the pipe body, the socket straight-through part, and the plug into an integrated structure. In some embodiments, a middle part of the socket straight-through part has a second annular protrusion facing inward, the pipe body of the casting pipe and the extension pipe are respectively disposed on two sides of the second annular protrusion, and the pipe body and the extension pipe are correspondingly i