Hollow HDPE (high-density polyethylene) double-layer mold steel fiber self-compacting concrete round inspection well with shallow-buried bottom plate

Abstract

The utility model discloses a hollow HDPE (high-density polyethylene) double-layer mold steel fiber self-compacting concrete round inspection well with a shallow-buried bottom plate. The hollow HDPE double-layer mold steel fiber self-compacting concrete round inspection well comprises an HDPE outer mold matched with the inspection well in appearance and an HDPE inner mold matched with an inner cavity of the inspection well, the HDPE inner mold and the HDPE outer mold are both of a thin-wall box-shaped structure which is made of HDPE materials and provided with an opening in the upper portion. A plurality of L-shaped positioning stiffening ribs are uniformly distributed around the center line between the side wall and the bottom plate in the HDPE outer mold and corresponding to the positions of the side wall and the bottom plate outside the HDPE inner mold; holes are formed in the side faces of the HDPE inner mold and the HDPE outer mold and correspond to the positions, where bypass pipelines need to be arranged, of the inspection well, and finished product saddles are arranged; steel fiber self-compacting concrete is poured into the concrete pouring cavity to form a bearing body of the inspection well. According to the utility model, the construction applicability of the inspection well is higher, the inspection well is tightly connected with a pipeline, and the sealing problem between the pipeline and the well is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of inspection well, especially to shallow buried bottom plate hollow HDPE double -deck mould steel fiber self -compacting concrete round inspection well. BACKGROUND

[0002] With the continuous promotion of city renewal and old district reconstruction, municipal supporting infrastructure upgrading reconstruction is implemented simultaneously. As an important part of municipal pipe network, the design and construction of inspection well need to consider bearing capacity, impermeability, durability, corrosion resistance and sealing of pipe well interface.

[0003] The existing inspection well is mostly masonry inspection well, prefabricated reinforced concrete inspection well and plastic inspection well.

[0004] Among them, the sealing of brick inspection well pipe well interface is not good, easy to leak, long construction period;

[0005] The prefabricated inspection well has high cost, and the deviation between pre-hole and on-site pipe position is large, which is not easy to connect;

[0006] The strength of the plastic inspection well is not high, and it cannot directly bear the dynamic load such as vehicle pressure, so it needs to increase the unloading plate.

[0007] Therefore, how to make the inspection well have good heat resistance and cold resistance, chemical stability, corrosion resistance and compression and tensile resistance, make the construction applicability of the inspection well higher and closely connected with the pipeline, and effectively solve the sealing problem between the pipe and the well become the technical problems that the technical personnel in the field need to solve. UTILITY MODEL CONTENTS

[0008] In view of the above defects of the prior art, the utility model provides a shallow buried bottom plate hollow HDPE double -deck mould steel fiber self -compacting concrete round inspection well, which realizes the purpose of making the inspection well have good heat resistance and cold resistance, chemical stability, corrosion resistance and compression and tensile resistance, making the construction applicability of the inspection well higher and closely connected with the pipeline, and effectively solving the sealing problem between the pipe and the well.

[0009] To achieve the above purpose, the utility model discloses a shallow buried bottom plate hollow HDPE double -deck mould steel fiber self -compacting concrete round inspection well, which comprises an HDPE outer mould matched with the shape of the inspection well and an HDPE inner mould matched with the inner cavity of the inspection well;

[0010] The HDPE inner mould and the HDPE outer mould are both thin -walled box -shaped structures made of HDPE material and open at the top;

[0011] The HDPE inner mould is arranged in the HDPE outer mould and forms a concrete pouring cavity matched with the inspection well and opening at the top with the HDPE outer mould;

[0012] a plurality of L-shaped positioning stiffening ribs are evenly distributed around the center line between the side wall and the bottom plate inside the HDPE outer mold corresponding to the positions of the side wall and the bottom plate outside the HDPE inner mold, and the positions of the HDPE inner mold in the HDPE outer mold are constrained through the positioning stiffening ribs;

[0013] the side surfaces of the HDPE inner mold and the HDPE outer mold are both holed at positions corresponding to positions where bypass pipelines are needed in the inspection well, and finished saddle seats matching the bypass pipelines are arranged;

[0014] the steel fiber self-compacting concrete poured in the concrete pouring cavity forms the load-bearing main body of the inspection well.

[0015] Preferably, the HDPE inner mold and the HDPE outer mold are both thin-walled box-shaped structures integrally formed by injection molding, and the sizes of the holes are cut according to actual requirements during construction.

[0016] Preferably, all the positioning stiffening ribs are integrally formed with the HDPE outer mold by injection molding.

[0017] Preferably, the HDPE inner mold is provided with a steam vent hole near the middle position of the bottom.

[0018] Preferably, the HDPE outer mold is provided with 3, 4, 5, 6, or 7 L-shaped positioning stiffening ribs evenly distributed around the center line between the side wall and the bottom plate inside the HDPE outer mold corresponding to the positions of the side wall and the bottom plate outside the HDPE inner mold.

[0019] Preferably, the load-bearing main body formed by the steel fiber self-compacting concrete is provided with a manhole cover at the upper opening.

[0020] Preferably, the load-bearing main body formed by the steel fiber self-compacting concrete is provided with a falling prevention net corresponding to the position near the upper opening in the HDPE inner mold.

[0021] The utility model discloses the beneficial effect:

[0022] The HDPE inner mold and the HDPE outer mold of the utility model are both made of HDPE material, are respectively injection molded, and have good heat resistance and cold resistance, chemical stability, corrosion resistance and compression and tensile resistance, so that the finished inspection well is improved in terms of corrosion resistance, impermeability and other performances.

[0023] The HDPE inner mold and the HDPE outer mold of the utility model can be arbitrarily cut and holed according to the on-site pipeline arrangement, do not limit the pipeline diameter, elevation and included angle, are practical, can be connected with the finished saddle seat after being holed, have high applicability and are closely connected with the pipeline, and effectively solve the sealing problem between the pipeline and the well.

[0024] The hollow part inside the well wall and bottom plate formed by the HDPE inner and outer molds of the utility model is poured with steel fiber self-compacting concrete, and no on-site formwork is required. The finished inspection well has high strength and durability; there is no need to add a unloading plate on the top, which is more convenient and quick to use.

[0025] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram showing an embodiment of the present invention in which an HDPE inner mold is arranged on a positioning stiffening rib of an HDPE outer mold.

[0027] Figure 2 Show the utility model Figure 1 Schematic diagram of the AA-axis cross-section structure.

[0028] Figure 3 Show the utility model Figure 1 Schematic diagram of the cross-sectional structure along the middle BB direction.

[0029] Figure 4 A schematic structural diagram of a side opening of a concrete pouring cavity in one embodiment of the present invention is shown.

[0030] Figure 5 A schematic structural diagram of a finished saddle seat is shown in which a hole is opened on the side of a concrete casting cavity in one embodiment of the present invention.

[0031] Figure 6 A schematic structural diagram showing the installation of all components of an embodiment of the present invention is shown.

[0032] In the figure: 1. HDPE inner mold; 2. HDPE outer mold; 3. Positioning stiffeners; 4. Slurry holes; 5. Finished saddle seat; 6. Steel fiber self-compacting concrete; 7. Manhole cover; 8. Anti-fall net. DETAILED DESCRIPTION

[0033] Example

[0034] like Figures 1 to 6 As shown, a shallow buried bottom plate hollow HDPE double-layer mold steel fiber self-compacting concrete circular inspection well includes a HDPE outer mold 2 that matches the appearance of the inspection well and a HDPE inner mold 1 that matches the inner cavity of the inspection well;

[0035] The HDPE inner mold 1 and the HDPE outer mold 2 are both made of HDPE material and are thin-walled box-shaped structures with an upper opening;

[0036] The HDPE inner mold 1 is arranged in the HDPE outer mold 2, and the HDPE outer mold 2 forms a concrete pouring cavity which is matched with the inspection well and is open at the top;

[0037] A plurality of positioning stiffening ribs 3 in the shape of 'L' are evenly distributed around the center line between the side wall and the bottom plate inside the HDPE outer mold 2 and correspond to the positions of the side wall and the bottom plate outside the HDPE inner mold 1, so that the position of the HDPE inner mold 1 in the HDPE outer mold 2 is constrained through the positioning stiffening ribs 3;

[0038] The side of the HDPE inner mold 1 and the side of the HDPE outer mold 2 are both holed at positions corresponding to positions where bypass pipelines are needed to be arranged in the inspection well, and a finished saddle 5 matched with the corresponding bypass pipeline is arranged.

[0039] The steel fiber self-compacting concrete 6 poured in the concrete pouring cavity forms a load-bearing main body of the inspection well.

[0040] In the utility model, a plurality of positioning stiffening ribs 3 in the shape of 'L' are evenly distributed around the center line between the side wall and the bottom plate inside the HDPE outer mold 2 and correspond to the positions of the side wall and the bottom plate outside the HDPE inner mold 1, so that the position of the HDPE inner mold 1 is fixed and constrained through the positioning stiffening ribs 3 in the shape of 'L';

[0041] The finished saddle 5 is arranged for the connection of the inspection well and the bypass pipeline.

[0042] In some embodiments, the HDPE inner mold 1 and the HDPE outer mold 2 are both thin-walled box-shaped structures integrally formed by using an injection molding process, and the holed sizes are both cut according to actual requirements during construction.

[0043] In some embodiments, all the positioning stiffening ribs 3 are integrally formed with the HDPE outer mold 2 by using an injection molding process.

[0044] In some embodiments, a gas venting hole 4 is arranged at a position close to the middle of the bottom of the HDPE inner mold 1.

[0045] The gas venting hole 4 arranged at a position close to the middle of the bottom of the HDPE inner mold 1 is used to ensure that the gas at the bottom of the HDPE inner mold 1 is smoothly discharged during the pouring of the steel fiber self-compacting concrete 6, so as to ensure that the steel fiber self-compacting concrete 6 is poured and compacted.

[0046] In some embodiments, 3, 4, 5, 6 or 7 positioning stiffening ribs 3 in the shape of 'L' are evenly distributed around the center line between the side wall and the bottom plate inside the HDPE outer mold 2 and correspond to the positions of the side wall and the bottom plate outside the HDPE inner mold 1.

[0047] In some embodiments, a manhole cover 7 is arranged at the open top of the load-bearing main body formed by the steel fiber self-compacting concrete 6.

[0048] In practical application, the well lid 7 is usually connected with the inspection well by bolts.

[0049] In some embodiments, the load-bearing main body formed by the steel fiber self-compacting concrete 6 is provided with a falling prevention net 8 near the position of the upper opening in the HDPE inner mold 1.

[0050] In practical application, the HDPE inner mold 1 and the HDPE outer mold 2 of the utility model are integrally formed by injection molding process respectively, then are transported to the site, and after the site pipeline positioning, the hole cutting is carried out, and then the finished product saddle 5 is connected, the steel fiber self-compacting concrete 6 is injected, and after pouring and forming, the well lid is added, and the utility model can be put into use.

[0051] The preferred embodiments of the utility model are described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative labor. Therefore, any technical scheme obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the utility model should be within the protection scope determined by the claims.

Claims

1. Shallow buried bottom plate hollow HDPE double-layer mold steel fiber self-compacting concrete circular inspection well; its characteristics are: It comprises an HDPE outer mold (2) matching the outer shape of the inspection well and an HDPE inner mold (1) matching the inner cavity of the inspection well; The HDPE inner mold (1) and the HDPE outer mold (2) are both made of HDPE material and are thin-walled box-shaped structures with an opening at the top; The HDPE inner mold (1) is arranged inside the HDPE outer mold (2) and forms a concrete pouring cavity with an upper opening that matches the inspection well with the HDPE outer mold (2); Between the side wall and the bottom plate inside the HDPE outer mold (2), corresponding to the position of the side wall and the bottom plate outside the HDPE inner mold (1), a plurality of "L"-shaped positioning stiffening ribs (3) are evenly distributed around the center line, and the position of the HDPE inner mold (1) inside the HDPE outer mold (2) is constrained by the positioning stiffening ribs (3); Holes are opened on the sides of the HDPE inner mold (1) and the HDPE outer mold (2) at positions corresponding to the inspection well where bypass pipelines need to be set, and finished saddle seats (5) matching the corresponding bypass pipelines are set; Steel fiber self-compacting concrete (6) is poured into the concrete pouring cavity to form the bearing body of the inspection well.

2. The shallow buried bottom plate hollow HDPE double-layer mold steel fiber self-compacting concrete circular inspection well according to claim 1 is characterized in that: The HDPE inner mold (1) and the HDPE outer mold (2) are both thin-walled box-shaped structures integrally formed using an injection molding process, and the size of the openings is cut according to actual requirements during construction.

3. The shallow buried bottom plate hollow HDPE double-layer steel fiber self-compacting concrete circular inspection well according to claim 1 is characterized in that: All the positioning stiffening ribs (3) and the HDPE outer mold (2) are integrally formed using an injection molding process.

4. The shallow buried bottom plate hollow HDPE double-layer steel fiber self-compacting concrete circular inspection well according to claim 1 is characterized in that: A slurry emitting hole (4) is provided near the middle of the bottom of the HDPE inner mold (1).

5. The shallow buried bottom plate hollow HDPE double-layer steel fiber self-compacting concrete circular inspection well according to claim 1 is characterized in that: Between the side wall and the bottom plate inside the HDPE outer mold (2), corresponding to the side wall and the bottom plate outside the HDPE inner mold (1), 3, 4, 5, 6, or 7 "L"-shaped positioning stiffening ribs (3) are evenly distributed around the center line.

6. The shallow buried bottom plate hollow HDPE double-layer mold steel fiber self-compacting concrete circular inspection well according to claim 1 is characterized in that: A manhole cover (7) is provided at the upper opening of the bearing body formed by the steel fiber self-compacting concrete (6).

7. The shallow buried bottom plate hollow HDPE double-layer steel fiber self-compacting concrete circular inspection well according to claim 1 is characterized in that: The load-bearing body formed by the steel fiber self-compacting concrete (6) is provided with an anti-falling net (8) at a position close to the upper opening in the HDPE inner mold (1).

Images