Novel riding well and construction method thereof

Abstract

The invention discloses a novel riding well and a construction method thereof.The novel riding well comprises an inspection well cover plate, a pipe jacking composite pipe joint, a steel outer wall reinforced concrete shaft, a shaft outer wall and a well lid, the shaft outer wall is installed on the pipe jacking composite pipe joint, the steel outer wall reinforced concrete shaft is installed in the shaft outer wall, and the inspection well cover plate is installed on the top of the shaft outer wall and the top of the steel outer wall reinforced concrete shaft; the manhole cover is mounted in the middle of the top of the inspection well cover plate, all the riding well components can be prefabricated, the construction efficiency is high, and the cost is relatively low; large excavation is not needed, environmental friendliness is achieved, and construction in the sections where traffic is inconvenient and construction operation areas are narrow in municipal construction is particularly facilitated; and the well completion quality is good.

Description

Technical Field

[0001] The present invention relates to the technical field of caisson wells, and is a method for constructing a caisson well by using a prefabricated wellbore on a jacking pipe section using a caisson method. More specifically, it relates to a novel caisson well and a construction method thereof. Background Art

[0002] In the pipe jacking construction of municipal engineering, especially in the construction of drainage pipes, it is necessary to open a skylight well at the corresponding pipe section position after the pipe jacking, that is, to construct a riding well. The current method mostly adopts the excavation construction method, and often requires foundation reinforcement treatment at the relevant position. In the case of a small construction area or a busy traffic area, the construction is especially inconvenient, time-consuming, low in human-machine efficiency, poor in environment, and has caused great response from the public. Summary of the Invention

[0003] In response to the above-mentioned problems existing in the prior art, the present invention provides a new type of riding well and a construction method thereof. All riding well components can be prefabricated, the construction efficiency is high, and the cost is relatively low; no large excavation is required, and it is environmentally friendly. It is especially beneficial for construction in areas with inconvenient transportation and narrow construction areas during municipal construction; and the well quality is good.

[0004] The present invention adopts the following technical solutions:

[0005] A new type of riding well, including a manhole cover, a top pipe composite pipe section, a steel outer wall reinforced concrete well shaft, a well shaft outer wall and a well cover. The well shaft outer wall is installed on the top pipe composite pipe section, the steel outer wall reinforced concrete well shaft is installed inside the well shaft outer wall, the manhole cover is installed on the well shaft outer wall and the top of the steel outer wall reinforced concrete well shaft, and the well cover is installed in the middle of the top of the manhole cover.

[0006] In one embodiment of the present invention, reinforced concrete is constructed on the outer wall of the shaft to form a steel outer wall reinforced concrete shaft.

[0007] In one embodiment of the present invention, a hole is drilled in the composite pipe section of the jacking pipe to form a skylight, and the hole is located in the reinforced concrete shaft with a steel outer wall to form a riding well chamber.

[0008] In one embodiment of the present invention, a circumferential welding chamfer is reserved on the outer wall of the shaft, and epoxy asphalt paint is applied to the outer wall of the shaft before caisson caisson.

[0009] In one embodiment of the present invention, fine stone concrete is poured at the circumferential welding chamfer position of the outer wall of the shaft.

[0010] In one embodiment of the present invention, fine stone concrete is poured after steel bars are tied inside the outer wall of the shaft.

[0011] In one embodiment of the present invention, a manhole cover is installed on the ground or at a location of a completed road surface structure.

[0012] The present invention also discloses a new type of riding well construction method, comprising the following steps:

[0013] The outer wall of the wellbore is processed using thick steel plates, which are placed on the top pipe composite pipe section using the caisson construction method, welded and fixed on the top pipe composite pipe section, and then fine stone concrete is filled and fixed at the circumferential welding chamfer position of the outer wall of the wellbore for protection. After that, reinforced concrete construction is carried out on the outer wall of the wellbore to form a steel outer wall reinforced concrete wellbore. A skylight is drilled on the top pipe composite pipe section inside the steel outer wall reinforced concrete wellbore to form a riding well chamber. Then, a manhole cover and a well cover are installed on the upper part of the wellbore to complete the riding well construction.

[0014] Beneficial effects:

[0015] The outer wall of the shaft of the present invention can be quickly processed and prefabricated on a large scale. The steel outer wall reinforced concrete shaft 3 is easy to construct. All riding shaft components can be prefabricated, resulting in high construction efficiency and relatively low cost. No large-scale excavation is required, which is environmentally friendly and particularly beneficial for construction in municipal construction sites with inconvenient transportation and narrow construction areas. The resulting shaft has good quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention and its features, aspects and advantages will become more apparent from reading the detailed description of the embodiments with reference to the following drawings, which illustrate the subject matter of the invention.

[0017] Figure 1 This is a plan view of a manhole cover according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of a riding well according to an embodiment of the present invention;

[0019] Figure 3 This is a plan view of a riding well according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] As shown in the figure, the present invention discloses a new type of riding well, including a manhole cover 1, a top pipe composite pipe section 2, a steel outer wall reinforced concrete well shaft 3, a well shaft outer wall 4 and a well cover 6. The well shaft outer wall 3 is installed on the top pipe composite pipe section 2, the steel outer wall reinforced concrete well shaft 3 is installed in the well shaft outer wall 4, the manhole cover 1 is installed on the top of the well shaft outer wall 4 and the steel outer wall reinforced concrete well shaft 3, and the well cover 6 is installed in the middle of the top of the manhole cover 1.

[0022] In the picture Figure 2 for Figure 1 AA cross-sectional view. Figure 3 for Figure 2 Middle BB cross-section view.

[0023] The corresponding parts around the manhole cover 1 are opened with holes, which is convenient for installation on a compacted foundation or compacted roadbed and then secondary pouring and vibration to increase the anti-settling effect.

[0024] A concrete retaining ring 5 is provided at the lower part of the manhole cover 1 for placement on the top outer ring of the outer wall 4 of the shaft.

[0025] The gaps between the manhole cover 1 and the top of the steel outer wall reinforced concrete shaft 3 and the shaft outer wall 4 are filled with a caulking plate 9, and the ends are sealed with a sealing paste 8.

[0026] The jacking composite pipe section 2 is prefabricated before the jacking construction, and steel plates are embedded in the relevant parts of the connection with the riding shaft to facilitate welding with the shaft outer wall 4. During construction, the position of the jacking composite pipe section 2 should be consistent with the riding shaft setting position in the design drawing.

[0027] The steel outer wall reinforced concrete shaft 3 is made of thick steel plates, and reinforced concrete is constructed on the inside to form the inner shaft wall. The inner shaft wall needs to be reinforced and supported by formwork during construction, and fine stone concrete is needed for easy pouring.

[0028] The outer wall 4 of the shaft needs to be processed with thick steel plates to ensure the corresponding strength for caisson construction. The shape of the lower part should be consistent with the shape of the joint of the top pipe composite pipe section 2, and chamfers should be processed on the edges for easy welding.

[0029] In one embodiment of the present invention, reinforced concrete is constructed on the shaft outer wall 4 to form a steel outer wall reinforced concrete shaft 3 .

[0030] In one embodiment of the present invention, a hole is drilled in the jacking composite pipe section 2 to form a skylight, and the hole 13 is located in the steel outer wall reinforced concrete shaft 3 to form a riding well chamber.

[0031] In one embodiment of the present invention, a circumferential welding chamfer 11 is reserved on the outer wall 4 of the wellbore. The outer side of the wellbore wall may be corroded due to contact with external soil, water, air, etc. and environmental influences. Before caisson, epoxy asphalt paint 12 is applied to the outer wall 4 of the wellbore to facilitate corrosion prevention and ensure service life.

[0032] In one embodiment of the present invention, fine stone concrete 10 is poured at the circumferential welding chamfer 11 of the shaft outer wall 4 .

[0033] In one embodiment of the present invention, fine stone concrete 10 is poured after reinforcing steel bars are tied inside the shaft outer wall 4. The shaft outer wall 4 is prefabricated before construction. During construction, the shaft is quickly sunk to the location of the skylight opening in the jacking composite pipe section 2 using the caisson method. Connections are then made, and the saddle shaft wall is constructed above this. It is important to note that anchor bars should be welded to the shaft wall first to secure the steel mesh construction formwork and ensure a firm connection to the shaft wall.

[0034] In one embodiment of the present invention, the manhole cover 1 is installed on the ground or at a location of a completed road surface structure 7 .

[0035] The present invention also discloses a new type of riding well construction method, comprising the following steps:

[0036] The outer wall of the wellbore is processed using thick steel plates, which are placed on the top pipe composite pipe section using the caisson construction method, welded and fixed on the top pipe composite pipe section, and then fine stone concrete is filled and fixed at the circumferential welding chamfer position of the outer wall of the wellbore for protection. After that, reinforced concrete construction is carried out on the outer wall of the wellbore to form a steel outer wall reinforced concrete wellbore. A skylight is drilled on the top pipe composite pipe section inside the steel outer wall reinforced concrete wellbore to form a riding well chamber. Then, a manhole cover and a well cover are installed on the upper part of the wellbore to complete the riding well construction.

[0037] Example

[0038] During a new drainage system project, a pipe jacking project employed Φ1800 pipes with 2-meter sections at a certain road site. The designed jacking wells had an average depth of 6 meters. Because the road was only 12 meters wide, the jacking wells, though designed to be located within the roadside green belt, were only 1.2 meters from the road edge, with some well openings located directly on the road.

[0039] After adopting the present invention, the foundation pit excavation is smaller, the construction speed is faster, the impact on traffic is smaller, and the social response is better.

[0040] After the pipe jacking construction is completed, it is necessary to measure and lay out the lines to verify the construction location of the riding well, and the corresponding composite pipe section position and opening position should be determined.

[0041] When the above construction is carried out in the well, it must be carried out in accordance with the requirements for confined space operations to ensure safe construction.

[0042] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A new type of riding well, characterized in that: It includes a manhole cover, a top pipe composite pipe section, a steel outer wall reinforced concrete wellbore, a wellbore outer wall and a manhole cover. The wellbore outer wall is installed on the top pipe composite pipe section, the steel outer wall reinforced concrete wellbore is installed inside the wellbore outer wall, the manhole cover is installed on the wellbore outer wall and the top of the steel outer wall reinforced concrete wellbore, and the manhole cover is installed in the middle of the top of the manhole cover.

2. A new type of riding well according to claim 1, characterized in that: Reinforced concrete construction is carried out on the outer wall of the shaft to form a steel outer wall reinforced concrete shaft.

3. A new type of riding well according to claim 1, characterized in that: A skylight is drilled on the composite pipe section of the jacking pipe. The hole is located in the reinforced concrete shaft on the steel outer wall to form a riding well chamber.

4. A new type of riding well according to claim 1, characterized in that: A circumferential welding chamfer is reserved on the outer wall of the shaft, and epoxy asphalt paint is applied to the outer wall of the shaft before caisson caisson.

5. A new type of riding well according to claim 4, characterized in that: Pour fine stone concrete at the circumferential weld chamfer position on the outer wall of the shaft.

6. A new type of riding well according to claim 4, characterized in that: After tying the steel bars inside the outer wall of the shaft, fine stone concrete is poured.

7. The new type of riding well according to claim 1, characterized in that: Install manhole covers on the ground or on completed pavement structures.

8. A new type of riding well construction method, characterized in that: The following steps are involved: The outer wall of the wellbore is processed using thick steel plates, which are placed on the top pipe composite pipe section using the caisson construction method, welded and fixed on the top pipe composite pipe section, and then fine stone concrete is filled and fixed at the circumferential welding chamfer position of the outer wall of the wellbore for protection. After that, reinforced concrete construction is carried out on the outer wall of the wellbore to form a steel outer wall reinforced concrete wellbore. A skylight is drilled on the top pipe composite pipe section inside the steel outer wall reinforced concrete wellbore to form a riding well chamber. Then, a manhole cover and a well cover are installed on the upper part of the wellbore to complete the riding well construction.

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