General inspection well for municipal water conservancy construction and construction method thereof

Abstract

The invention discloses a general inspection well for municipal water conservancy construction and a construction method of the general inspection well, and relates to the technical field of inspection wells. The general inspection well is characterized by comprising a base and a bottom well body fixed to the base, and a connector used for being connected with a municipal pipeline is arranged on the circumferential side wall of the bottom well body; a joint is arranged between the base and the bottom well body, a surrounding frame is arranged at the joint of the base and the bottom well body around the joint, first encapsulating concrete is poured into the surrounding frame, the well body further comprises a top well body and a plurality of middle extending well bodies connected between the top well body and the bottom well body, and an annular cavity is formed among the top well body, the middle extending well bodies and the bottom well body in a penetrating mode. Second encapsulating concrete is poured into the annular cavity, and a telescopic well body is arranged at the end, away from the middle extending well body, of the top well body. The method has the advantages of being convenient and fast to construct, good in anti-seepage performance, high in applicability and long in service life.

Description

Technical Field

[0001] The present invention relates to the technical field of inspection wells, and more specifically, to a general inspection well for municipal water conservancy construction and its construction method. Background Art

[0002] Inspection wells are required in municipal water conservancy projects and other municipal underground pipe network projects. Inspection wells are set up for the convenience of maintenance and installation of power supply, water supply, drainage, sewage discharge, communication, cable TV, gas pipes, street lamp lines, etc. of urban underground infrastructure. Generally, they are located at pipe intersections, turning points, where the pipe diameter or slope changes, and at certain intervals on straight pipe segments, and are auxiliary structures for facilitating regular inspections.

[0003] Traditional inspection wells have many defects: brick inspection wells, although low in cost, have a long construction period and poor anti-seepage performance, which is likely to cause groundwater pollution; cast-in-place reinforced concrete inspection wells, although having a stable structure, are difficult to construct and have a long construction period; plastic inspection wells can effectively shorten the construction period, but are easily damaged during use and have a limited scope of application.

[0004] In response to the above problems, precast concrete inspection wells have emerged on the market. However, the overall structure of such inspection wells is usually integrally cast, and the height of the inspection well cannot be adjusted according to construction requirements. Moreover, the interface between the municipal pipeline and the inspection well is usually treated for anti-seepage by setting a bushing and cooperating with caulking glue. This method is cumbersome in construction and is prone to leakage after long-term use and aging.

[0005] Therefore, a new solution is needed to solve this problem. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a general inspection well for municipal water conservancy construction and its construction method, which has the advantages of convenient and fast construction, good anti-seepage performance, strong applicability, and high service life.

[0007] The above technical purpose of the present invention is achieved through the following technical solutions: A general inspection well for municipal water conservancy construction includes a base and a bottom well body fixed on the base. An interface for connecting a municipal pipeline is provided on the circumferential side wall of the bottom well body. A surrounding frame is arranged around the interface at the joint of the base and the bottom well body. The surrounding frame is filled with a first encapsulating concrete to form a local anti-seepage strengthening area for the interface. The inspection well further includes a top well body and a plurality of middle extending well bodies connected between the top well body and the bottom well body. A continuous annular cavity is penetrated between the inner wall and the outer wall of the top well body, the middle extending well bodies, and the bottom well body. The annular cavity is filled with a second encapsulating concrete to form a circumferential strengthening layer of the inspection well. A telescopic well body is provided at one end of the top well body away from the middle extending well body.

[0008] In one embodiment, the base, the bottom well body and the surrounding frame are integrally formed concrete precast members.

[0009] In one embodiment, a steel bar framework is arranged inside the surrounding frame and is coated with first encapsulating concrete.

[0010] In one embodiment, the bottom well body, the middle extending well body and the top well body all include an inner cylinder and an outer cylinder. An annular cavity is formed between the inner cylinder and the outer cylinder. A plurality of connecting ribs are arranged circumferentially between the outer cylinder and the inner cylinder.

[0011] In one embodiment, the telescopic well body includes a telescopic cylinder longitudinally and slidably connected to the inner wall of the top well body, a connecting ring fixed to the outer wall of the telescopic cylinder, an adjusting screw rotatably connected to the connecting ring, and a threaded sleeve fixed to the top well body. The adjusting screw is threadedly connected to the threaded sleeve. One end of the telescopic cylinder away from the top well body is provided with a manhole cover. The adjusting screw is configured such that when the adjusting screw is rotated, the telescopic cylinder moves up and down longitudinally so that the manhole cover is flush with the horizontal ground.

[0012] In one embodiment, annular grooves are respectively provided on the inner cylinders and outer cylinders of the bottom well body, the middle extending well body and the top well body at the top of the bottom well body and the top of the middle extending well body, and convex rings adapted to the annular grooves are respectively provided at the bottom of the middle extending well body and the bottom of the top well body.

[0013] In one embodiment, steps are respectively arranged longitudinally on the inner walls of the bottom well body, the middle extending well body and the top well body.

[0014] A construction method for a general inspection well in municipal water conservancy construction, including any one of the general inspection wells in municipal water conservancy construction, further includes the following steps:

[0015] Lift the base with the top well body and the surrounding frame into the target foundation pit, and fix the base to the bottom of the target foundation pit;

[0016] Insert the municipal pipeline along the surrounding frame into the interface, and pour first encapsulating concrete into the surrounding frame to form a local anti-seepage strengthening area at the interface;

[0017] Lift the middle extending well body and the top well body above the bottom well body in sequence, and adjust and align them in sequence to ensure that the bottom well body, the middle extending well body and the top well body are coaxial, so that the annular cavity runs through continuously;

[0018] Pour second encapsulating concrete into the annular cavity to connect and fix the bottom well body, the middle extending well body and the top well body, and form a circumferential reinforcement layer;

[0019] Install a telescopic well body at the upper end of the top well body and install a manhole cover on the telescopic well body.

[0020] By adjusting the telescopic height of the telescopic well body, align the manhole cover with the horizontal ground, and backfill the foundation pit around the inspection well with earthwork to complete the construction of the inspection well.

[0021] In one embodiment, after connecting and fixing the bottom well body, the middle extension well body and the top well body, use waterproof cement mortar to caulk and solidify the inner and outer walls of the inspection well.

[0022] In one embodiment, during subsequent use, if the inspection well sinks, dig open the horizontal ground on the periphery of the telescopic well body, drive the manhole cover to rise again to the position flush with the current ground by rotating the adjusting screw rod, and then repair the dug horizontal ground of this part.

[0023] In summary, the present invention has the following beneficial effects: by arranging a surrounding frame around the interface at the joint of the base and the bottom well body and pouring the first encapsulating concrete to form a local anti-seepage strengthening area at the interface, the anti-seepage performance at the interface is effectively enhanced; by setting the top well body, several middle extension well bodies and the telescopic well body, the height of the inspection well can be flexibly adjusted according to construction requirements, improving the applicability of the inspection well; at the same time, a circular cavity is arranged between the top well body, the middle extension well body and the bottom well body and the second encapsulating concrete is poured to form a circumferential reinforcement layer, enhancing the overall sealing performance and structural stability of the inspection well, improving the quality and service life of the inspection well, and at the same time, by setting the telescopic well body, during subsequent use, if the inspection well sinks, dig open the horizontal ground on the periphery of the telescopic well body, drive the manhole cover to rise again to the position flush with the current ground by rotating the adjusting screw rod, and then repair the dug horizontal ground of this part, which has the advantages of convenient and quick adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a general inspection well for municipal water conservancy construction in an embodiment of the present application;

[0025] Figure 2 It is a structural schematic diagram of the bottom well body and the base in a general inspection well for municipal water conservancy construction in an embodiment of the present application;

[0026] Figure 3 It is a sectional view of a general inspection well for municipal water conservancy construction in an embodiment of the present application;

[0027] Figure 4 It is Figure 3 The enlarged view of part A in

[0028] In the figure: 1, base; 2, bottom well body; 3, municipal pipeline; 4, surrounding frame; 5, middle extended well body; 6, top well body; 7, telescopic well body; 71, telescopic cylinder; 72, connecting ring; 73, adjusting screw; 8, well cover; 9, steel bar framework; 10, inner cylinder; 11, connecting rib; 12, outer cylinder; 13, first encapsulating concrete; 14, convex ring; 15, annular groove. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] As Figures 1 to 4 shown, the embodiment of the present application provides a general inspection well for municipal water conservancy construction, including a base 1 and a bottom well body 2 fixed on the base 1. An interface for connecting a municipal pipeline 3 is provided on the circumferential side wall of the bottom well body 2. A surrounding frame 4 is hermetically arranged around the joint of the base 1 and the bottom well body 2. The first encapsulating concrete 13 is poured in the surrounding frame 4 to form a local anti-seepage strengthening area for the interface. The municipal pipeline 3 is usually a corrugated pipe. After pouring the first encapsulating concrete 13, it has a good wrapping property for the municipal pipeline 3, greatly improving the anti-seepage property of the interface position. The inspection well further includes a top well body 6 and a plurality of middle extended well bodies 5 connected between the top well body 6 and the bottom well body 2. A continuous annular cavity is provided through the inner wall and the outer wall of the top well body 6, the middle extended well body 5 and the bottom well body 2. The second encapsulating concrete is poured in the annular cavity to form a circumferential reinforcement layer of the inspection well. A telescopic well body 7 is provided at one end of the top well body 6 away from the middle extended well body 5.

[0031] When the above inspection well is constructed and installed, the base 1 with the top well body 6 and the surrounding frame 4 is hoisted into the target foundation pit, and the base 1 is fixed to the bottom of the target foundation pit; the municipal pipeline 3 is inserted into the interface along the surrounding frame 4, and the first encapsulating concrete 13 is poured into the surrounding frame 4 to form a local anti-seepage strengthening area at the interface; the middle extended well body 5 and the top well body 6 are hoisted above the bottom well body 2 in sequence, and alignment adjustment is carried out in sequence to ensure that the bottom well body 2, the middle extended well body 5 and the top well body 6 are coaxial, so that the annular cavity is continuously penetrated; the second encapsulating concrete is poured into the annular cavity to connect and fix the bottom well body 2, the middle extended well body 5 and the top well body 6, and form a circumferential reinforcement layer; the telescopic well body 7 is installed at the upper end of the top well body 6, and the manhole cover 8 is installed on the telescopic well body 7; by adjusting the telescopic height of the telescopic well body 7, the manhole cover 8 is aligned with the horizontal ground, and the foundation pit around the inspection well is backfilled with soil to complete the construction of the inspection well.

[0032] In the above method, by arranging the surrounding frame 4 around the interface at the joint of the base 1 and the bottom well body 2 and pouring the first encapsulating concrete 13 to form a local anti-seepage strengthening area at the interface, the anti-seepage performance at the interface is effectively enhanced; by arranging the top well body 6, several middle extended well bodies 5 and the telescopic well body 7, the height of the inspection well can be flexibly adjusted according to the construction requirements, improving the applicability of the inspection well; at the same time, an annular cavity is arranged between the top well body 6, the middle extended well body 5 and the bottom well body 2 and the second encapsulating concrete is poured to form a circumferential reinforcement layer, enhancing the overall sealing performance and structural stability of the inspection well, improving the quality and service life of the inspection well. At the same time, through the setting of the telescopic well body 7, if the inspection well sinks during subsequent use, the horizontal ground on the circumferential side of the telescopic well body 7 is dug open, and by rotating the adjusting screw 73, the manhole cover 8 is driven to rise again to the position flush with the current ground, and the dug open horizontal ground of this part is repaired again, which has the advantages of convenient and quick adjustment.

[0033] In this embodiment, the base 1, the bottom well body 2 and the surrounding frame 4 are integrally formed concrete precast components. This setting eliminates the assembly joints between the base 1, the bottom well body 2 and the surrounding frame 4, greatly improving the density and bearing capacity of the joint part, effectively avoiding the stress concentration or joint leakage problems caused by split connection, and ensuring the structural integrity of the local anti-seepage strengthening area at the interface.

[0034] In this embodiment, a steel bar framework 9 wrapped in the first encapsulating concrete 13 is arranged in the surrounding frame 4 to form a composite stress structure, improving the compressive, tensile and shear resistance capabilities of the surrounding frame 4 area, and effectively resisting the deformation caused by soil extrusion or vehicle dynamic load at the pipeline interface, ensuring the long-term use stability of the local strengthening area at the interface.

[0035] In this embodiment, the bottom well body 2, the middle extension well body 5 and the top well body 6 all include an inner cylinder 10 and an outer cylinder 12, an annular cavity is formed between the inner cylinder 10 and the outer cylinder 12, and a plurality of connecting ribs 11 are arranged along the circumferential direction between the outer cylinder 12 and the inner cylinder 10. A grid-like skeleton is formed between the connecting ribs 11 and the outer cylinder 12 and the inner cylinder 10, which can restrain the shrinkage and deformation of the concrete and reduce the expansion of cracks caused by temperature changes or foundation settlement. After the second encapsulating concrete completely wraps the connecting ribs 11, the structural strength of the inspection well is further enhanced.

[0036] In this embodiment, the telescopic well body 7 includes a telescopic cylinder 71 that is longitudinally slidably connected to the inner wall of the top well body 6, a connecting ring 72 fixed on the outer wall of the telescopic cylinder 71, an adjusting screw 73 rotatably connected to the connecting ring 72, and a threaded sleeve (not shown) embedded and fixed on the top well body 6, the adjusting screw 73 is threadedly connected to the threaded sleeve, a corrugated dust cover is sleeved on the adjusting screw 73 located between the connecting ring 72 and the top well body 6, a screw accommodating sleeve (not shown) for accommodating the adjusting screw 73 is provided on the top connecting sleeve below the threaded sleeve, and a protective cover (not shown) is provided at the pan position of the adjusting screw 73. A well cover 8 is provided on the end of the telescopic cylinder 71 away from the top well body 6, and the adjusting screw 73 is configured so that when the adjusting screw 73 is rotated, the telescopic cylinder 71 is lifted and lowered longitudinally so that the well cover 8 is flush with the horizontal ground.

[0037] The above method solves the pain points of traditional manhole covers, such as difficulty in adjusting the 8-degree fixed elevation, easy settlement and dislocation, and high maintenance costs, and realizes the full process optimization of "precise adjustment-long-term stability-convenient maintenance". It is especially suitable for scenes such as urban roads and squares that have strict requirements on ground flatness and safety.

[0038] In this embodiment, the inner cylinder 10 and the outer cylinder 12 of the bottom well body 2, the middle extension well body 5 and the top well body 6 are respectively provided with annular embedding grooves 15 at the top of the bottom well body 2 and the top of the middle extension well body 5, and the bottom of the middle extension well body 5 and the bottom of the top well body 6 are respectively provided with convex rings 14 adapted to the annular embedding grooves 15. Through the concave-convex cooperation between the convex ring 14 and the annular embedding groove 15, a physical guide alignment reference is formed, and the upper and lower well bodies can be quickly aligned in the axial direction without complicated measurements during on-site hoisting, which significantly shortens the splicing time. After the convex ring 14 is embedded in the embedding groove, a labyrinth sealing path is formed. At the same time, in order to improve the sealing performance, a glue water stop strip or sealant can also be pre-set in the embedding groove.

[0039] In this embodiment, steps are respectively arranged on the inner walls of the bottom well body 2, the middle extension well body 5 and the top well body 6 along the longitudinal direction.

[0040] The present invention also discloses a construction method of a universal inspection well for municipal water conservancy construction, including any universal inspection well for municipal water conservancy construction, and further comprising the following steps:

[0041] Lift the base 1 with the top well body 6 and the surrounding frame 4 into the target foundation pit, and fix the base 1 to the bottom of the target foundation pit;

[0042] Insert the municipal pipeline 3 along the surrounding frame 4 into the interface, and pour the first pack of concrete 13 into the surrounding frame 4 to form a local anti-seepage strengthening area at the interface;

[0043] Lift the middle extended well body 5 and the top well body 6 in sequence above the bottom well body 2, and adjust and align them in sequence to ensure that the bottom well body 2, the middle extended well body 5 and the top well body 6 are coaxial, so that the annular cavity is continuously penetrated;

[0044] Pour the second pack of concrete into the annular cavity to connect and fix the bottom well body 2, the middle extended well body 5 and the top well body 6, and form a circumferential reinforcement layer;

[0045] Install the telescopic well body 7 at the upper end of the top well body 6, and install the well cover 8 on the telescopic well body 7;

[0046] By adjusting the telescopic height of the telescopic well body 7, align the well cover 8 with the horizontal ground, and backfill the foundation pit around the inspection well with soil to complete the construction of the inspection well.

[0047] In this embodiment, after the connection and fixation of the bottom well body 2, the middle extended well body 5 and the top well body 6 are completed, the inner wall and outer wall of the inspection well are caulked and consolidated with waterproof cement mortar.

[0048] In this embodiment, if the inspection well sinks during subsequent use, dig open the horizontal ground on the circumferential side of the telescopic well body 7, drive the well cover 8 to rise again to the position flush with the current ground by rotating the adjusting screw 73, and repair the dug horizontal ground of this part again.

[0049] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A general inspection well for municipal water conservancy construction, comprising a base (1) and a bottom well body (2) fixed on the base (1), wherein an interface for connecting to a municipal pipeline (3) is provided on the circumferential side wall of the bottom well body (2), and characterized in that: A frame (4) is provided around the interface at the junction of the base (1) and the bottom well body (2), and a first encapsulating concrete (13) is poured into the frame (4) to form a local anti-seepage reinforcement zone of the interface. The inspection well also includes a top well body (6) and a plurality of middle extension well bodies (5) connected between the top well body (6) and the bottom well body (2). A continuously penetrating annular cavity is provided between the inner wall and the outer wall of the top well body (6), the middle extension well body (5) and the bottom well body (2), and a second encapsulating concrete is poured into the annular cavity to form a circumferential reinforcement layer of the inspection well. A telescopic well body (7) is provided at one end of the top well body (6) away from the middle extension well body (5).

2. The universal inspection well for municipal water conservancy construction according to claim 1 is characterized by: The base (1), the bottom well body (2) and the surrounding frame (4) are integrally formed prefabricated concrete components.

3. The universal inspection well for municipal water conservancy construction according to claim 1 is characterized by: A steel frame (9) enclosed in a first encapsulating concrete (13) is arranged in the enclosure (4).

4. The universal inspection well for municipal water conservancy construction according to claim 1 is characterized by: The bottom well body (2), the middle extension well body (5) and the top well body (6) all include an inner cylinder (10) and an outer cylinder (12), the annular cavity is formed between the inner cylinder (10) and the outer cylinder (12), and a plurality of connecting ribs (11) are arranged between the outer cylinder (12) and the inner cylinder (10) along the circumferential direction.

5. The universal inspection well for municipal water conservancy construction according to claim 1 is characterized by: The telescopic well body (7) comprises a telescopic cylinder (71) connected to the inner wall of the top well body (6) in a longitudinal sliding manner, a connecting ring (72) fixed on the outer wall of the telescopic cylinder (71), an adjusting screw (73) rotatably connected to the connecting ring (72), and a threaded sleeve fixed on the top well body (6), wherein the adjusting screw (73) is threadedly connected to the threaded sleeve, and a well cover (8) is provided at one end of the telescopic cylinder (71) away from the top well body (6), and the adjusting screw (73) is configured such that when the adjusting screw (73) is rotated, the telescopic cylinder (71) is lifted and lowered in the longitudinal direction so that the well cover (8) is flush with the horizontal ground.

6. The universal inspection well for municipal water conservancy construction according to claim 4 is characterized by: The inner cylinder (10) and the outer cylinder (12) of the bottom well body (2), the middle extension well body (5) and the top well body (6) are provided with annular embedding grooves (15) at the top of the bottom well body (2) and the top of the middle extension well body (5), respectively, and convex rings (14) adapted to the annular embedding grooves (15) are provided at the bottom of the middle extension well body (5) and the bottom of the top well body (6), respectively.

7. The universal inspection well for municipal water conservancy construction according to claim 1 is characterized by: Steps are respectively arranged on the inner walls of the bottom well body (2), the middle extension well body (5) and the top well body (6) along the longitudinal direction.

8. A method for constructing a universal inspection well for municipal water conservancy construction, comprising the universal inspection well for municipal water conservancy construction as claimed in any one of claims 1 to 7, characterized in that: The following steps are also included: Hoisting the base (1) with the top well body (6) and the surrounding frame (4) into the target foundation pit, and fixing the base (1) to the bottom of the target foundation pit; Inserting the municipal pipeline (3) into the interface along the surrounding frame (4), and pouring the first encapsulating concrete (13) into the surrounding frame (4) to form a local anti-seepage reinforcement area of ​​the interface; The middle extension well body (5) and the top well body (6) are sequentially hoisted to the top of the bottom well body (2), and the positions are adjusted sequentially to ensure that the bottom well body (2), the middle extension well body (5) and the top well body (6) are coaxial, so that the annular cavity is continuously penetrated; Pouring a second encapsulating concrete into the annular cavity to connect and fix the bottom well body (2), the middle extension well body (5) and the top well body (6) and form a circumferential reinforcement layer; Installing a telescopic well body (7) at the upper end of the top well body (6), and installing a well cover (8) on the telescopic well body (7); By adjusting the telescopic height of the telescopic well body (7), the well cover (8) is aligned with the horizontal ground, and the foundation pit around the inspection well is backfilled to complete the manhole construction.

9. The construction method of a universal inspection well for municipal water conservancy construction according to claim 8 is characterized by: After the bottom well body (2), the middle extension well body (5) and the top well body (6) are connected and fixed, waterproof cement mortar is used to grout the inner and outer walls of the inspection well.

10. The construction method of a universal inspection well for municipal water conservancy construction according to claim 8, characterized in that: If the inspection well sinks during subsequent use, the horizontal ground around the telescopic well body (7) is dug up, and the manhole cover (8) is driven to rise again to a position flush with the current ground by rotating the adjusting screw (73), and the dug horizontal ground can be repaired again.

Images