Cast-in-place hidden well lid and paving construction method thereof

Abstract

The invention discloses a cast-in-place hidden type well lid and a paving construction method thereof.The cast-in-place hidden type well lid is arranged at the top of a well body, the well body comprises a well hole and a well wall surrounding the outer side of the well hole, and the cast-in-place hidden type well lid comprises a bottom plate arranged in a road base and provided with a first through hole for containing the top of the well body; the lower-layer well lid body is arranged at the top of the well body; the upper-layer well lid body is connected to the lower-layer well lid body in a meshed mode and located on the side, back to the well body, of the lower-layer well lid body, and a plurality of exhaust holes are formed in the surface of the upper-layer well lid body; the well lid surface layer is arranged at the top of the upper-layer well lid body and is separated from the road surface layer, and the top elevation of the well lid surface layer is the same as that of the road surface layer; the filling sleeve is arranged between the well lid surface layer and the road and in the gap between the upper-layer well lid body and the road, the well lid surface layer and the road surface layer are integrally paved, the flatness of the well lid surface layer and the road surface layer is guaranteed, and high popularization value is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a cast-in-place hidden manhole cover and a paving construction method thereof. Background Art

[0002] In municipal road projects and road renewal projects, it is inevitable that there are many rainwater wells or sewage wells on the roads. Since the construction sequence is to install the manhole covers first and then pave the surface layer, there is a problem with the order of construction. In addition, due to the different foundation load-bearing components and uneven settlement, the elevation of the manhole cover position is difficult to control, and the manhole cover position is often not flat enough, which greatly affects the driving experience. Summary of the invention

[0003] In order to overcome the defects in the prior art, the present invention provides a cast-in-place hidden manhole cover and a paving construction method thereof, which ensures the flatness of the manhole cover surface layer and the road surface layer.

[0004] In order to achieve the above-mentioned object, the present invention provides a cast-in-place hidden manhole cover and a paving construction method thereof, which is arranged at the top of a well body, the well body comprising a well hole and a well wall surrounding the well hole, and the cast-in-place hidden manhole cover comprises:

[0005] A bottom plate is arranged in the road base, and a first through hole is opened on the bottom plate for accommodating the top of the well body;

[0006] The lower manhole cover body is arranged on the top of the manhole body;

[0007] An upper manhole cover body is meshedly connected to the lower manhole cover body and is located on a side of the lower manhole cover body facing away from the manhole body, and a plurality of exhaust holes are provided on the surface of the upper manhole cover body;

[0008] A manhole cover surface layer is arranged on the top of the upper manhole cover body and is separated from the road surface layer, and the top elevation of the manhole cover surface layer is the same as the top elevation of the road surface layer;

[0009] The filling sleeve is arranged in the gap between the manhole cover surface layer and the road, and in the gap between the upper manhole cover body and the road.

[0010] Preferably, the lower manhole cover body includes a first positioning plate and a plurality of positioning columns evenly installed on the bottom of the first positioning plate, the outer diameter of the first positioning plate is the same as the outer diameter of the well body, and a plurality of positioning holes for inserting and connecting the plurality of positioning columns are correspondingly opened at the top of the well wall.

[0011] Preferably, a second through hole is opened on the lower manhole cover body, the second through hole has the same diameter as the first through hole, a plurality of first limit plates are installed at intervals along the circumference direction on the inner side of the second through hole, and a plurality of the first limit plates are inserted and installed in the first through hole.

[0012] Preferably, the upper manhole cover body includes a second positioning plate and a plurality of second limiting plates installed at intervals on the bottom of the second positioning plate, the plurality of second limiting plates are inserted and installed in the second through holes, and the plurality of second limiting plates are meshingly connected to the plurality of first limiting plates.

[0013] Preferably, a disc is installed on the top of the second positioning plate, the manhole cover surface layer is arranged on the top of the disc, and a plurality of stiffening ribs are installed in a circular arrangement inside the disc, and the plurality of stiffening ribs are divergent.

[0014] A paving construction method for a cast-in-place hidden manhole cover is used to install the cast-in-place hidden manhole cover, and the construction method comprises the following steps:

[0015] Install the well body and make the top elevation of the well wall consistent with the bottom elevation of the road base;

[0016] To lay the road base, excavate the road base with the center of the well hole as the center and place the base plate;

[0017] Installing a lower manhole cover body on the top of the manhole wall, and installing an upper manhole cover body on the lower manhole cover body, so that the two are meshed and connected with each other;

[0018] Pave the road surface and manhole cover surface as a whole, and mark the upper manhole cover body and the position of the exhaust hole;

[0019] Drill exhaust holes at positions corresponding to the exhaust holes on the manhole cover surface layer, cut the manhole cover surface layer to separate it from the road surface layer, and insert a filling sleeve into the cut gap.

[0020] Preferably, when the upper manhole cover body is installed on the lower manhole cover body, the top elevation of the upper manhole cover body is lower than the elevation of the finished surface of the road surface.

[0021] Preferably, before paving the road surface layer and the manhole cover surface layer as a whole, use a measuring tool to record the center position of the upper manhole cover body and the position of the exhaust hole. After the overall surface layer is paved, mark the position of the upper manhole cover body and the exhaust hole.

[0022] Preferably, after the cast-in-place hidden manhole cover is installed and the road needs to be updated, the manhole cover surface layer is chiseled off to recycle the cast-in-place hidden manhole cover.

[0023] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0024] 1) The manhole cover surface layer is paved and rolled as a whole by using the cast-in-place method, so that the manhole cover surface layer and the road surface layer have completely consistent flatness. Then a large core drilling machine slightly larger than the manhole cover surface layer is used for overall cutting to separate the manhole cover surface layer from the road surface layer, ensuring that it can be opened for subsequent maintenance.

[0025] 2) By arranging a number of stiffening ribs in the disc, the strength of the upper manhole cover body can be increased, and at the same time, it can better fit with the upper manhole cover surface layer.

[0026] 3) Through the meshing connection between the first limiting plate and the second limiting plate and the insertion of the positioning column into the positioning hole, a positioning effect can be achieved and at the same time, the upper manhole cover body can be prevented from rotating and displacing under the action of external force after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 It is a cross-sectional view of the exploded structure of the cast-in-place hidden manhole cover in an embodiment of the present invention.

[0029] Figure 2 It is a partial stereoscopic diagram of the exploded structure of the cast-in-place concealed manhole cover in an embodiment of the present invention.

[0030] Figure 3 It is a schematic diagram of the decomposed structure installation environment of the cast-in-place hidden manhole cover in an embodiment of the present invention.

[0031] Figure 4 It is a schematic diagram after the construction of the cast-in-place hidden manhole cover in an embodiment of the present invention is completed.

[0032] The corresponding relationship of the numbers in the accompanying drawings is as follows:

[0033] 1-well wall; 101-positioning hole; 2-bottom plate; 3-road base; 4-first through hole; 5-lower well cover body; 51-first positioning plate; 52-positioning column; 53-second through hole; 54-first limiting plate; 6-upper well cover body; 61-second positioning plate; 62-second limiting plate; 63-disc; 64-stiffening rib; 7-exhaust hole; 8-well cover surface layer; 9-filling sleeve; 10-well cement adjustment pipe; 11-road surface layer. DETAILED DESCRIPTION

[0034] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] See also Figures 1 to 4 As shown, an embodiment of the present invention provides a cast-in-place hidden manhole cover, which is arranged at the top of a manhole body, and a well cement regulating pipe 10 is connected to the bottom of the manhole body. The manhole body includes a manhole and a manhole wall 1 arranged outside the manhole. The cast-in-place hidden manhole cover includes a bottom plate 2, a lower manhole cover body 5, an upper manhole cover body 6, a manhole cover surface layer 8 and a filling sleeve 9, wherein the bottom plate 2 is arranged in a road base layer 3, and a first through hole 4 for accommodating the top of the manhole body is opened on the bottom plate 2; the lower manhole cover body 5 is arranged at the top of the manhole body; the upper manhole cover body 6 is meshedly connected to the lower manhole cover body 5, and is located on the side of the lower manhole cover body 5 facing away from the manhole body, and a plurality of exhaust holes 7 are provided on the surface of the upper manhole cover body 6; the manhole cover surface layer 8 is arranged on the top of the upper manhole cover body 6 and is separated from the road surface layer 11, and the top elevation of the manhole cover surface layer 8 is the same as the top elevation of the finished surface of the road surface layer 11; the filling sleeve 9 is arranged in the gap between the manhole cover surface layer 8 and the road, and between the upper manhole cover body 6 and the road.

[0036] Furthermore, the lower manhole cover body 5 includes a first positioning plate 51 and a plurality of positioning posts 52 uniformly installed at the bottom of the first positioning plate 51, the outer diameter of the first positioning plate 51 is the same as the outer diameter of the well body, and the top of the well wall 1 is correspondingly provided with a plurality of positioning holes 101 for the insertion and connection of the plurality of positioning posts 52. Preferably, a second through hole 53 is provided on the lower manhole cover body 5, the second through hole 53 has the same diameter as the first through hole 4, a plurality of first limiting plates 54 are installed at intervals along the circumference direction on the inner side of the second through hole 53, and the plurality of first limiting plates 54 are inserted and installed in the first through hole 4.

[0037] Furthermore, the upper manhole cover body 6 includes a second positioning plate 61, a plurality of second limiting plates 62 installed at intervals at the bottom of the second positioning plate 61, the plurality of second limiting plates 62 are inserted and installed in the second through hole 53, and the second limiting plates 62 are engaged and connected to the plurality of first limiting plates 54. Preferably, a disc 63 is installed on the top of the second positioning plate 61, the manhole cover surface layer 8 is arranged on the top of the disc 63, and a plurality of stiffening ribs 64 are installed in an annular display inside the disc 63, and the plurality of stiffening ribs 64 are divergent. In this embodiment, the disc 63 is basin-shaped. By setting the stiffening ribs 64, the strength of the upper manhole cover body 6 can be increased, and at the same time, it can be better combined with the subsequent manhole cover surface layer 8 casting. The engagement of the first limiting plate 54 and the second limiting plate 62 can play a positioning role to prevent the upper manhole cover body 6 from rotating and displacing under the action of external force after installation.

[0038] The embodiment of the present invention further provides a cast-in-place hidden manhole cover paving construction method, which is used to install the cast-in-place hidden manhole cover. The construction method comprises the following steps:

[0039] 1) Install the well body, connect the well cement regulating pipe under the well body, and make the top elevation of the well wall consistent with the bottom elevation of the road base. The elevation of the well wall should be calculated in advance to ensure that the top elevation of the upper manhole cover body must be lower than the finished surface elevation of the road surface.

[0040] 2) Pave the road base. Excavate the road base with the center of the well hole as the center and place the bottom plate. The bottom plate is made of reinforced concrete slab. Artificially excavate a rectangular groove in the road base to prevent steel bars. Cast the reinforced concrete slab. The elevation of the concrete slab is consistent with the elevation of the top of the well wall. Reserve a circular hole in the middle of the concrete slab with a diameter consistent with the well wall.

[0041] 3) Install the lower manhole cover body on the top of the well wall, and install the upper manhole cover body on the lower manhole cover body so that the two are meshed and connected with each other. It should be noted that when the upper manhole cover body is installed on the lower manhole cover body, the top elevation of the upper manhole cover body is lower than the elevation of the finished surface of the road.

[0042] 4) Pave the road surface layer and the manhole cover surface layer as a whole, and mark the positions of the upper manhole cover body and the exhaust holes. It should be noted that before paving the road surface layer and the manhole cover surface layer as a whole, use a measuring tool (a total station is used in this embodiment) to record the center position of the upper manhole cover body and the position of the exhaust holes. After the overall surface layer is paved, mark the positions of the upper manhole cover body and the exhaust holes.

[0043] 5) Drill vent holes at the positions corresponding to the vent holes on the manhole cover surface layer, use a large coring machine with a diameter slightly larger than the upper manhole cover body to cut the manhole cover surface layer (cut slightly larger than the outer diameter of the disc) to separate it from the road surface layer, and insert a filling sleeve into the cut gap to prevent edge collapse, reduce gaps and displacement. It should be noted that after the cast-in-place hidden manhole cover is installed, a steel pipe is hammered into the vent hole to prevent edge collapse, and a conspicuous mark is made on the road surface to facilitate finding the manhole cover. When the road needs to be updated, the manhole cover surface layer is chiseled off to recycle the cast-in-place hidden manhole cover.

[0044] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A cast-in-place hidden manhole cover, arranged on the top of a well body, the well body comprising a well hole and a well wall surrounding the well hole, characterized in that: The cast-in-place hidden manhole cover comprises: A bottom plate is arranged in the road base, and a first through hole is opened on the bottom plate for accommodating the top of the well body; The lower manhole cover body is arranged on the top of the manhole body; An upper manhole cover body is meshedly connected to the lower manhole cover body and is located on a side of the lower manhole cover body facing away from the manhole body, and a plurality of exhaust holes are provided on the surface of the upper manhole cover body; A manhole cover surface layer is arranged on the top of the upper manhole cover body and is separated from the road surface layer, and the top elevation of the manhole cover surface layer is the same as the top elevation of the road surface layer; The filling sleeve is arranged in the gap between the manhole cover surface layer and the road, and in the gap between the upper manhole cover body and the road.

2. The cast-in-place concealed manhole cover according to claim 1, characterized in that: The lower manhole cover body includes a first positioning plate and a plurality of positioning columns evenly installed at the bottom of the first positioning plate. The outer diameter of the first positioning plate is the same as the outer diameter of the well body, and a plurality of positioning holes for the insertion and connection of the plurality of positioning columns are correspondingly opened at the top of the well wall.

3. The cast-in-place hidden manhole cover according to claim 2, characterized in that: A second through hole is opened on the lower manhole cover body, and the diameter of the second through hole is the same as that of the first through hole. A plurality of first limit plates are installed at intervals along the circumference direction on the inner side of the second through hole, and a plurality of the first limit plates are inserted and installed in the first through hole.

4. The cast-in-place hidden manhole cover according to claim 3, characterized in that: The upper manhole cover body includes a second positioning plate and a plurality of second limiting plates installed at intervals on the bottom of the second positioning plate, the plurality of second limiting plates are inserted and installed in the second through holes, and the plurality of second limiting plates are meshedly connected to the plurality of first limiting plates.

5. The cast-in-place concealed manhole cover according to claim 4, characterized in that: A disc is installed on the top of the positioning plate, the manhole cover surface layer is arranged on the top of the disc, and a plurality of stiffening ribs are installed in a circular arrangement inside the disc, and the plurality of stiffening ribs are divergent.

6. A paving construction method for cast-in-place hidden manhole cover, characterized in that: For realizing the installation of the cast-in-place concealed manhole cover as claimed in claim 1, the construction method comprises the following steps: Install the well body and make the top elevation of the well wall consistent with the bottom elevation of the road base; To lay the road base, excavate the road base with the center of the well hole as the center and place the base plate; Installing a lower manhole cover body on the top of the manhole wall, and installing an upper manhole cover body on the lower manhole cover body, so that the two are meshed and connected with each other; Pave the road surface and manhole cover surface as a whole, and mark the upper manhole cover body and the position of the exhaust hole; Drill exhaust holes at positions corresponding to the exhaust holes on the manhole cover surface layer, cut the manhole cover surface layer to separate it from the road surface layer, and insert a filling sleeve into the cut gap.

7. The paving construction method of the cast-in-place hidden manhole cover according to claim 6, characterized in that: When the upper manhole cover body is installed on the lower manhole cover body, the top elevation of the upper manhole cover body is lower than the elevation of the finished surface of the road surface.

8. The paving construction method of the cast-in-place hidden manhole cover according to claim 6, characterized in that: Before paving the road surface layer and the manhole cover surface layer as a whole, use a measuring tool to record the center position of the upper manhole cover body and the position of the exhaust hole. After the overall surface layer is paved, mark the position of the upper manhole cover body and the exhaust hole.

9. The paving construction method of the cast-in-place hidden manhole cover according to claim 6, characterized in that: After the cast-in-place hidden manhole cover is installed and the road needs to be updated, the manhole cover surface layer is chiseled off to recycle the cast-in-place hidden manhole cover.

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