Municipal pipe gallery water collecting pool excavation supporting structure and method

Abstract

The invention discloses a municipal pipe gallery water collecting pool excavation supporting structure and method, and belongs to the field of underground pipe galleries, the municipal pipe gallery water collecting pool excavation supporting structure comprises a walking type unwinding mechanism arranged on the side portion of a water collecting pool to be excavated, and the walking type unwinding mechanism comprises a guide rail laid on the ground, a walking trolley arranged at the top end of the guide rail and an unwinding unit arranged at the top end of the walking trolley; the unwinding unit comprises an electric winding drum and a flexible rigid supporting roll wound on the electric winding drum. According to the excavation supporting structure and method for the municipal pipe gallery water collecting pool, supporting is conducted by lowering the flexible and rigid supporting roll, operation is easy and fast, and the overall construction speed is increased.

Description

Technical Field

[0001] The invention relates to the field of underground pipe corridors, and in particular to an excavation support structure and method for a water collection pool in a municipal pipe corridor. Background Art

[0002] The main function of the municipal pipeline corridor collection pool is to collect and temporarily store rainwater, sewage and other forms of surface water generated along the line, which plays an important role in avoiding urban waterlogging and regulating the amount of water entering the municipal drainage system.

[0003] During the excavation of the municipal pipe gallery water collection pool, support is required to ensure construction safety and environmental stability. The existing excavation support technologies are as follows: CN202410104915.0 discloses a method for excavating and supporting a water collection pool in an integrated pipe gallery, which comprises the following steps: S1, excavating a foundation pit of the integrated pipe gallery at the water collection pool to the bottom surface of the integrated pipe gallery; S2, measuring and laying out; S3, installing steel purlins; S4, burying filter pipes and well point pipes around the water collection pool, installing a main pipe, connecting a vacuum pump, and draining water; S5, excavating shallow soil, tying ring beam steel bars, erecting formwork, installing steel pipes, leaving reserved holes, and pouring concrete; S6, excavating the earth under the crown beam in opposite sections, building brick walls in sections, plastering the brick formwork after completion, and backfilling the reserved holes with grouting; S7, pouring a cushion layer; S8, and constructing the water collection pool structure in one go.

[0004] It can be seen that the existing support process is cumbersome and the support time is long, which increases the overall construction time. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a municipal pipe gallery water collection pool excavation support structure and method, which supports by lowering flexible rigid support rolls, is simple and quick to operate, and improves the overall construction speed.

[0006] To achieve the above-mentioned purpose, the present invention provides a municipal pipe gallery water collection pool excavation support structure, including a walking unwinding mechanism arranged on the side of the water collection pool to be excavated, the walking unwinding mechanism including a guide rail laid on the ground, a walking trolley arranged at the top of the guide rail and an unwinding unit arranged at the top of the walking trolley, the unwinding unit including an electric reel and a flexible rigid support reel wound on the electric reel.

[0007] Preferably, the flexible rigid support roll includes an elastic grid support plate, a connecting cloth and a plurality of concrete blocks arranged in sequence from the inside to the outside, one side of the connecting cloth is sewn to the elastic grid support plate, and the other side is bonded to a plurality of concrete blocks arranged in a rectangular array, and the arrangement of the plurality of concrete blocks is the same as the grid arrangement of the elastic grid support plate.

[0008] Preferably, a guide wheel is also provided in the traveling direction of the traveling trolley, and the flexible rigid support coil passes around the guide wheel and then extends into the interior of the pool to be excavated.

[0009] The method for excavating a supporting structure for a municipal pipe gallery water collection pool comprises the following steps: S1. Lay a guide rail on the side of the water collection tank to be excavated, and place a traveling trolley equipped with an unwinding unit on the top of the guide rail; S2. After the set depth is excavated at the location of the water collection tank to be excavated, the walking trolley drives the unwinding unit to move toward the excavated water collection tank until the guide wheel extends out of the excavation position. At this time, a lowering gap is left between the flexible rigid support roll and the side wall of the excavated water collection tank; S3, the electric reel performs the unwinding action, lowering the flexible and rigid support reel into the foundation pit until the flexible and rigid support reel contacts the bottom of the water collection tank; S4, the walking trolley drives the unwinding unit to move away from the water collection tank until the flexible rigid support roll lowered into the water collection tank fits the inner wall of the water collection tank; S5. Repeat steps S2 to S4 until the foundation pit excavation is completed.

[0010] Preferably, the set depth in step S2 is 0.5m-0.8m.

[0011] The present invention has the following beneficial effects: By lowering the flexible rigid support rolls for support, the operation is simple and quick, which improves the overall construction speed.

[0012] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an excavation support structure of a municipal pipe gallery water collection pool of the present invention; Figure 2 This is a structural schematic diagram of one of the squares of a flexible rigid support roll of a municipal pipe gallery water collection pool excavation support structure of the present invention.

[0014] Among them: 1. Guide rail; 2. Walking trolley; 3. Electric reel; 4. Flexible rigid support roll; 41. Elastic grid support plate; 42. Concrete block; 5. Water collection tank. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0016] It should be noted that the terms "include", "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or server comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or devices.

[0017] Like reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-Figure 2 As shown, a municipal pipe gallery water collection pool excavation support structure includes a walking unwinding mechanism arranged on the side of the water collection pool 5 to be excavated, the walking unwinding mechanism includes a guide rail 1 laid on the ground, a walking trolley 2 arranged at the top of the guide rail 1 and an unwinding unit arranged at the top of the walking trolley 2, the unwinding unit includes an electric reel 3 and a flexible rigid support reel 4 wound on the electric reel 3.

[0021] The flexible rigid support roll 4 includes an elastic grid support plate 41, a connecting cloth and a plurality of concrete blocks 42 arranged in sequence from the inside to the outside. One side of the connecting cloth is sewn to the elastic grid support plate 41, and the other side is bonded to the plurality of concrete blocks 42 arranged in a rectangular array by an adhesive. The arrangement of the plurality of concrete blocks 42 is the same as the grid arrangement of the elastic grid support plate 41. The concrete blocks 42 in this embodiment are a step structure with a square cross-section.

[0022] A guide wheel is also provided in the traveling direction of the traveling trolley 2, and the flexible rigid support roll 4 passes around the guide wheel and extends into the interior of the water pool to be excavated.

[0023] It should be noted that the traveling trolley 2 and the electric reel 3 are both mature products on the market, so their structural principles will not be described in detail in this embodiment.

[0024] The method for excavating a supporting structure of a municipal pipe gallery water collection pool 5 comprises the following steps: S1, laying a guide rail 1 on the side of the water collection tank 5 to be excavated, and placing a walking trolley 2 equipped with an unwinding unit on the top of the guide rail 1; S2. After the set depth is excavated at the location of the water collection tank 5 to be excavated, the walking trolley 2 drives the unwinding unit to move toward the excavated water collection tank 5 until the guide wheel extends out of the excavation position. At this time, a lowering gap is left between the flexible rigid support roll 4 and the side wall of the excavated water collection tank 5; The set depth described in step S2 is 0.5m-0.8m.

[0025] S3, the electric reel 3 performs the unwinding action, lowering the flexible rigid support reel 4 into the foundation pit until the flexible rigid support reel 4 contacts the bottom of the water collection tank 5; S4, the walking trolley 2 drives the unwinding unit to move away from the water collecting pool 5, until the flexible rigid support roll 4 lowered into the water collecting pool 5 fits with the inner wall of the water collecting pool 5; S5. Repeat steps S2 to S4 until the foundation pit excavation is completed.

[0026] Therefore, the present invention adopts the above-mentioned municipal pipe gallery water collection pool excavation support structure and method, and supports by lowering flexible rigid support rolls. The operation is simple and fast, which improves the overall construction speed.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A municipal pipe gallery water collection pool excavation support structure, characterized in that: It includes a walking unwinding mechanism arranged on the side of the water collection pool to be excavated, the walking unwinding mechanism includes a guide rail laid on the ground, a walking trolley arranged on the top of the guide rail and an unwinding unit arranged on the top of the walking trolley, the unwinding unit includes an electric reel and a flexible rigid support reel wound on the electric reel.

2. A municipal pipe gallery water collection pool excavation support structure according to claim 1, characterized in that: The flexible rigid support roll includes an elastic grid support plate, a connecting cloth and a plurality of concrete blocks arranged in sequence from the inside to the outside. One side of the connecting cloth is sewn to the elastic grid support plate, and the other side is bonded to a plurality of concrete blocks arranged in a rectangular array. The arrangement of the plurality of concrete blocks is the same as the grid arrangement of the elastic grid support plate.

3. A municipal pipe gallery water collection pool excavation support structure according to claim 2, characterized in that: A guide wheel is also provided in the traveling direction of the traveling trolley, and the flexible rigid support coil passes around the guide wheel and extends into the interior of the water pool to be excavated.

4. A method for excavating a supporting structure for a water collection pool in a municipal pipe gallery as described in claim 3, characterized in that: The following steps are involved: S1. Lay a guide rail on the side of the water collection tank to be excavated, and place a traveling trolley equipped with an unwinding unit on the top of the guide rail; S2. After the set depth is excavated at the location of the water collection tank to be excavated, the walking trolley drives the unwinding unit to move toward the excavated water collection tank until the guide wheel extends out of the excavation position. At this time, a lowering gap is left between the flexible rigid support roll and the side wall of the excavated water collection tank; S3, the electric reel performs the unwinding action, lowering the flexible rigid support reel into the foundation pit until the flexible rigid support reel contacts the bottom of the water collection tank; S4, the walking trolley drives the unwinding unit to move away from the water collection tank until the flexible rigid support roll lowered into the water collection tank fits the inner wall of the water collection tank; S5. Repeat steps S2 to S4 until the foundation pit excavation is completed.

5. A method for excavating a supporting structure for a municipal pipe gallery water collection pool according to claim 4, characterized in that: The set depth described in step S2 is 0.5m-0.8m.

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