Municipal road inspection well

Abstract

The utility model relates to a municipal road inspection well. The municipal road inspection well structurally comprises a well shaft, a well ring arranged on the well shaft, a well seat arranged on the well ring and a well cover arranged on the well seat. A flange is arranged on the upper portion of the shaft, a conical surface is formed from the outer edge of the lower side of the flange to the outer wall of the shaft, a connector pipe matched with the well ring is arranged at the upper end of the shaft, and a lower concave table matched with the connector pipe is upwards arranged at the lower end of the inner wall of the well ring. The outer diameter of the well ring is larger than that of the shaft, the contact area between the well ring and a cement stabilized macadam layer is increased, vertical loads transmitted from the well cover and the well base can be effectively dispersed, the shaft is prevented from settling due to the fact that the shaft bears too large pressure, and the service life of the inspection well is prolonged. Due to the fact that the connector pipe of the shaft is tightly matched with the lower concave table of the well ring, dislocation in the installation process can be prevented, the horizontal load carrying capacity of the shaft is enhanced, and the horizontal dislocation phenomenon of the well ring is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of inspection well structures, specifically a kind of municipal road inspection well. BACKGROUND

[0002] As an important part of urban infrastructure, municipal road inspection well undertakes the key functions of drainage, maintenance and maintenance of underground pipelines. During the use of traditional inspection well, the inspection well located in the range of driving lane is repeatedly affected by vehicle load, especially when heavy vehicles pass on the road, the vertical pressure on the well ring is difficult to effectively disperse, resulting in excessive local pressure, causing the well shaft and well cover to sink, thereby affecting the flatness of the road, causing the asphalt layer around the well cover to fall off, the well cover to be damaged, and the road surface to crack, which not only affects the aesthetics of the urban environment, but also affects the use function of the road, increases the driving risk and municipal maintenance cost. SUMMARY

[0003] The utility model aims to provide a kind of municipal road inspection well to solve the problem of settlement caused by vehicle load of traditional municipal road inspection well.

[0004] The utility model is realized as follows: a kind of municipal road inspection well, its structure includes well shaft, well ring being arranged on the well shaft, well seat being arranged on the well ring and well cover being arranged on the well seat;Flange is arranged on the upper portion of the well shaft, the outer side of the lower side of the flange to the outer wall of the well shaft is conical surface, the upper end of the well shaft is provided with the joint pipe matched with the well ring, the lower end of the inner wall of the well ring is opened upward with the lower concave platform matched with the joint pipe.

[0005] Further, the lower end of the well seat is a horizontal annular bottom plate, and the annular bottom plate and the well ring are jointly penetrated by a bolt.

[0006] Further, the upper end of the inner wall of the well ring is opened downward with the upper concave platform matched with the well seat.

[0007] Further, the lower portion of the well shaft is located in the roadbed layer, and the upper portion is located in the cement stabilized macadam layer.

[0008] Further, the lower portion of the well ring is located in the cement stabilized macadam layer, and the upper portion is located in the asphalt surface layer.

[0009] Further, the well seat and the well cover are located in the asphalt surface layer.

[0010] Further, the inner diameter of the well shaft is the same as the inner diameter of the well ring, and the outer diameter of the well ring is greater than the outer diameter of the flange.

[0011] The outer diameter of the well ring is larger than the outer diameter of the well shaft, the contact area with the cement stabilized macadam layer is increased, the vertical load transmitted by the well lid and the well base can be effectively transmitted and dispersed, the well shaft is prevented from settlement due to bearing excessive pressure, and the service life of the inspection well and the road surface is prolonged.

[0012] The joint pipe of the well shaft and the lower recessed table of the well ring are tightly matched, the misplacement or deviation in the installation process is prevented, the stability of the overall structure is improved, the capacity of the well shaft to bear the horizontal load is improved, and the horizontal misplacement of the well ring is effectively prevented.

[0013] The utility model discloses simple structure, and part components can prefabricate, shorten the construction period, improve construction efficiency, reduce overall construction cost.

[0014] Part components of the utility model can prefabricate, reduce the complexity and workload of on-site construction, significantly shorten the construction period, the standardization production of prefabricated components improves construction quality and efficiency, and reduces construction cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model.

[0016] Figure 2 It is Figure 1 The enlarged view of A in Fig.

[0017] In the drawing: 1, well shaft, 1-1, flange, 1-2, joint pipe, 2, well ring, 3, well base, 4, well lid, 5, roadbed layer, 6, cement stabilized macadam layer, 7, asphalt surface layer, 8, bolt. DETAILED DESCRIPTION

[0018] As Figure 1 And Figure 2 The utility model discloses a well ring, a well base and a well lid, which are arranged on the well shaft, and the well ring is arranged on the well shaft, and the well base is arranged on the well ring, and the well lid is arranged on the well base. The upper portion of well shaft 1 is provided with flange 1-1 of size increasing, and the upper end of flange 1-1 is a horizontal plane, the lower side of flange 1-1 is a taper surface, and the outer end of flange 1-1 gradually decreases in size to the outer wall of well shaft 1, so that the outer diameter of well shaft 1 is the same, so that flange 1-1 can effectively bear the upper load.

[0019] The lower portion of well shaft 1 is located in roadbed layer 5, the upper portion of well shaft 1 and the lower portion of well ring 2 are located in cement stabilized macadam layer 6, the upper portion of well ring 2, well base 3 and well lid 4 are located in asphalt surface layer 7, and the upper end of well base 3 and the upper end of well lid 4 are flush with the upper surface of asphalt surface layer 7.

[0020] The well shaft 1 is used as a foundation part to accommodate and support the facilities in the well. The upper end of the well shaft 1 is a joint pipe 1-2 matched with the well ring 2, and the outer diameter of the joint pipe 1-2 is smaller than that of the well shaft 1. The inner wall of the well ring 2 is provided with a lower concave platform matching with the joint pipe 1-2, and the lower end of the well ring 2 is in contact with the upper end of the flange 1-1, which provides a stable support surface for the well ring 2, ensuring that the well ring 2 can be accurately positioned on the well shaft 1, avoiding misalignment or deviation during installation. In addition, the matching of the joint pipe 1-2 of the well shaft 1 and the lower concave platform of the well ring 2 enhances the ability of the well shaft 1 to bear horizontal load, effectively preventing the horizontal misalignment of the well ring. When the well cover 4 or the well ring 2 is subjected to horizontal load, the matching of the joint pipe 1-2 and the lower concave platform can disperse the load to a larger area of the well shaft 1 and the well ring 2. This dispersion helps to reduce local stress concentration and improve the load-bearing capacity of the structure.

[0021] A upper concave platform matching with the well seat 3 is provided on the upper end of the inner wall of the well ring 2. The inner diameter of the well shaft 1 is the same as that of the well ring 2, and the outer diameter of the well ring 2 is larger than that of the well shaft 1. Compared with the traditional structure in which only the well shaft 1 bears the load, the well ring 2 increases the contact area with the cement stabilized gravel layer 6, so that the well ring 2 can effectively transfer and disperse the vertical load transmitted by the well cover 4 and the well seat 3, preventing the well shaft 1 from sinking due to excessive pressure.

[0022] A slot accommodating the well cover 4 is provided on the upper end of the inner wall of the well seat 3, and the lower end of the well seat 3 is a horizontal annular bottom plate 3-1. Perforations are provided on the annular bottom plate 3-1, and bolts 8 are inserted through the perforations and the well ring 2. The size of the annular bottom plate 3-1 matches that of the upper concave platform, and the bolts 8 are M16x120 expansion bolts. There are three expansion bolts evenly distributed on the annular bottom plate 3-1 of the well seat 3.

[0023] Reinforcing ribs are provided in the flange 1-1 to ensure that the flange 1-1 can effectively bear the load. The wall thickness of the well shaft 1 is 30 cm, the height of the flange 1-1 is 10 cm, the outer diameter of the flange 1-1 is 15 cm larger than that of the joint pipe 1-2, the height of the joint pipe 1-2 is 15 cm, and the wall thickness of the joint pipe 1-2 is 24 cm. The wall thickness of the well ring 2 is 94 cm, and the height is 30 cm. The upper concave platform is 2 cm deep. Reinforcing ribs are provided inside the well ring 2, and C30 concrete is cast on site. The well shaft 1, the well seat 3 and the well cover 4 can be prefabricated to shorten the construction period and save construction cost.

Claims

1. A municipal road inspection well, characterized in that, The well includes a well casing, a well ring mounted on the well casing, a well seat mounted on the well ring, and a well cover mounted on the well seat. A flange is provided on the upper part of the well casing, and the lower outer edge of the flange to the outer wall of the well casing is a conical surface. A connector pipe that mates with the well ring is provided at the upper end of the well casing, and a recessed platform that mates with the connector pipe is provided at the lower end of the inner wall of the well ring.

2. The municipal road inspection well according to claim 1, characterized in that, The lower end of the well base is a horizontal annular base plate, and bolts are connected to both the annular base plate and the well ring.

3. The municipal road inspection well according to claim 2, characterized in that, An upper recessed platform that mates with the well seat is provided at the upper end of the inner wall of the well ring.

4. The municipal road inspection well according to claim 1, characterized in that, The lower part of the well shaft is located in the roadbed layer, and the upper part is located in the cement-stabilized crushed stone layer.

5. The municipal road inspection well according to claim 1, characterized in that, The lower part of the well ring is located in a cement-stabilized crushed stone layer, and the upper part is located in an asphalt surface layer.

6. The municipal road inspection well according to claim 1, characterized in that, Both the manhole base and the manhole cover are located within the asphalt surface layer.

7. The municipal road inspection well according to claim 1, characterized in that, The inner diameter of the well casing is the same as the inner diameter of the well ring, and the outer diameter of the well ring is larger than the outer diameter of the flange.

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