Prefabricated concrete well inter-section connecting structure

Abstract

The utility model discloses a prefabricated concrete well section connecting structure which comprises a first well section, a second well section arranged on the first well section, a well cover arranged on the second well section, a ladder stand arranged on the first well section and the second well section, a connecting notch and a connecting structure, the connecting structure is arranged at the connecting notch and used for connecting the first well section and the second well section. According to the connecting structure between the prefabricated concrete well sections, a new tongue-and-groove butt joint mode is adopted, the self water blocking effect of the connecting notches is enhanced through gap meshing, the water swelling rubber water stop strips are arranged in the connecting notches, the waterproof effect is further enhanced, meanwhile, asphalt sealant is smeared on the inner construction joints and the outer construction joints of the well sections, and the direct waterproof effect is achieved; and after the well sections are installed in place, annular rake nails are arranged outside the well sections, the well sections are effectively restrained, and the integrity of the shaft is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of precast concrete well engineering in municipal engineering, in particular to a precast concrete well internode connection structure. Background Art

[0002] At present, the integrated finished prefabricated concrete well design is mostly used, because of its high compressive strength, good anti-corrosion performance, convenient and fast construction, it is favored by designers and construction. Large wells adopt a split assembly structure, and the wellbore can be cut and adjusted on site to meet various installation depth requirements. However, the butt connection used in the prefabricated well section has poor integrity, and the wellbore is easily disturbed by backfilling, resulting in horizontal and vertical deviation of the wellbore. The settlement of the wellbore in the later stage causes cracks in the construction joints, and the leakage of the wellbore reversely erodes the roadbed, causing water damage to the roadbed and settlement of the road surface. Utility Model Content

[0003] The utility model aims to provide a prefabricated concrete well section connection structure to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the utility model provides the following technical solution: a prefabricated concrete well section connection structure, comprising a first well section, a second well section arranged on the first well section, a well cover arranged on the second well section, and a ladder arranged on the first well section and the second well section, comprising:

[0005] A connecting gap is arranged at the connection between the first well section and the second well section.

[0006] A connecting structure is arranged at the connecting notch and is used to connect the first well section and the second well section.

[0007] Preferably, the connecting structure includes a water stop strip provided on the connecting gap for preventing water from entering the connecting gap, a sealing paste provided on the connecting gap for sealing the connecting gap, and rake nails provided at the first well section and the second well section for connecting the first well section and the second well section, and the connecting structure is used to tightly connect the first well section and the second well section.

[0008] Preferably, the first well section and the second well section are provided with connecting holes, the size of the connecting holes matches the size of the rake nails, and the rake nails can be plugged into the connecting holes.

[0009] Preferably, there are a number of rake nails distributed in a ring shape on the first well section and the second well section. Such an arrangement can evenly distribute the connection force between the first well section and the second well section.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the precast concrete well section connection structure adopts a new tongue-and-groove docking form, which strengthens the water-blocking effect of the connection gap itself by gap biting, and arranges a water-swelling rubber waterstop strip inside the connection gap to further enhance the waterproof effect, and at the same time, asphalt sealing paste is applied to the construction joints inside and outside the well section to achieve a direct waterproof effect, and after the well section is installed in place, annular rake nails are arranged on the outside to effectively constrain the well sections and enhance the integrity of the wellbore. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front cutaway schematic diagram of an embodiment of the utility model;

[0012] Figure 2 This is a partial schematic diagram of a connection notch in one embodiment of the utility model;

[0013] Figure 3 The figure is a schematic diagram of the arrangement of rake nails according to an embodiment of the utility model.

[0014] In the figure:

[0015] 1. First well section 2. Connection gap 3. Second well section

[0016] 4. Manhole cover 5. Ladder 6. Water stop strip

[0017] 7. Sealing paste 8. Rake nails DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1As shown, the utility model provides a technical solution: a precast concrete well section connection structure, comprising a first well section 1, a second well section 3 arranged on the first well section 1, the bottom of the first well section 1 and the top of the second well section 3 are both provided with meshing notches to facilitate the docking of the two notches, and a well cover 4 arranged on the second well section 3, the well cover 4 is used to seal the top of the second well section 3, and a ladder 5 is arranged on the first well section 1 and the second well section 3, the ladder 5 is mainly provided to facilitate the user to climb and operate when connecting the first well section 1 and the second well section 3, and is also convenient for future inspection, comprising: a connecting notch 2 and a connecting structure, the connecting notch 2 is arranged at the connection between the first well section 1 and the second well section 3, the connecting notch 2 is the place where the first well section 1 and the second well section 3 are docked, and the connecting structure is arranged at the connecting notch 2, for connecting the first well section 1 and the second well section 3.

[0020] like Figure 2 , Figure 3 As shown, the connection structure includes a water stop strip 6 arranged on the connection gap 2 to prevent water from entering the connection gap 2, the water stop strip 6 is used to adhere to the connection gap 2 to prevent water from leaking out through the connection gap 2, and can also play a connecting role when connecting, and a sealing paste 7 arranged on the connection gap 2 to seal the connection gap 2, the sealing paste 7 needs to be applied to the inner and outer sides of the connection gap 2 respectively, so as to achieve an absolute sealing effect, the first well section 1 and the second well section 3 are provided with connection holes, the connection holes are used to accommodate the insertion of rake nails 8, the number of connection holes and the number of rake nails 8 The size of the connecting hole matches the size of the rake nail 8, the rake nail 8 can be inserted into the connecting hole, and the number of rake nails 8 is consistent. The connecting hole is used to fix the rake nail 8 on the inner wall of the first well section 1 and the second well section 3, and the rake nails 8 arranged at the first well section 1 and the second well section 3 are used to connect the first well section 1 and the second well section 3. The number of rake nails 8 is several and distributed in a ring shape on the first well section 1 and the second well section 3. Such an arrangement can evenly distribute the connection force of the first well section 1 and the second well section 3, and the connecting structure is used to tightly connect the first well section 1 and the second well section 3.

[0021] As shown above, in this embodiment, the first well section 1 is first fixed, the surrounding area is backfilled and compacted, the water stop strip 6 is set at the connection gap 2, the manhole cover 4 is opened and the ladder 5 is used to climb down, and the rake nails 8 are installed at the connection gap 2 between the first well section 1 and the second well section 3. Finally, the sealing paste 7 is applied inside and outside the connection gap 2, and the outside of the second well section 3 is backfilled again, thereby completing the connection between the first well section 1 and the second well section 3.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precast concrete well section connection structure, comprising a first well section, a second well section arranged on the first well section, a well cover arranged on the second well section, and ladders arranged on the first well section and the second well section, characterized in that: include: A connecting gap, which is arranged at the connection between the first well section and the second well section; A connecting structure is arranged at the connecting notch and is used to connect the first well section and the second well section.

2. A precast concrete well joint connection structure according to claim 1, characterized in that: The connection structure includes a water stop strip arranged on the connection gap to prevent water from entering the connection gap, a sealing paste arranged on the connection gap to seal the connection gap, and a rake nail arranged at the first well node and the second well node to connect the first well node and the second well node.

3. A precast concrete well joint connection structure according to claim 2, characterized in that: The first well section and the second well section are provided with connecting holes, and the size of the connecting holes matches the size of the rake nails.

4. A precast concrete well joint connection structure according to claim 2 or 3, characterized in that: The number of the rake nails is several and they are distributed in a ring shape on the first well section and the second well section.

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