Steel-concrete combined pipe jacking well

Abstract

The utility model provides a steel and concrete combined pipe jacking well, which relates to the technical field of pipeline construction devices and comprises a concrete well structure and a plurality of groups of steel well wall mechanisms, the top of the concrete well structure is sequentially provided with the plurality of groups of steel well wall mechanisms along the extension direction of the well, and the concrete well structure is provided with a plurality of first connecting pieces along the circumferential direction of the concrete well structure. The concrete well structures are detachably connected with the corresponding steel well wall mechanisms through first connecting pieces; the steel well wall mechanisms are of an annular structure, each steel well wall mechanism is provided with a plurality of second connecting pieces in the circumferential direction, and the adjacent steel well wall mechanisms are detachably connected through the second connecting pieces. The technical problems that in the prior art, concrete is adopted for construction, the number of construction steps is large, and concrete materials are wasted and become obstacles for other projects after a working well is abandoned are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline construction equipment, and in particular to a steel-concrete composite pipe jacking well. Background Technology

[0002] Pipe jacking is the most common trenchless construction method in pipeline engineering. It involves using a main jacking cylinder and intermediate jacking stations to provide jacking force, propelling the pipeline forward along the designed axis from the working shaft. Finally, the pipeline is lifted out of the receiving shaft, completing the underground pipeline construction. Most of the working and receiving shafts are temporary shafts, which are usually backfilled and abandoned after pipeline construction is completed. Only a small portion are permanent shafts used for future pipeline maintenance and repair.

[0003] The existing pipe jacking shafts use concrete for both the shaft walls and the base slab, constructed using the caisson method. The caisson method involves constructing one section of the shaft wall, excavating the soil beneath the wall, and allowing the caisson to sink to the design elevation using its own weight. Then, the next section of the shaft wall is constructed, and so on until the entire caisson is completed. Each section of the shaft wall concrete construction requires first setting up formwork, then pouring concrete, followed by seven days of curing. Only after the required strength has been achieved can subsequent construction steps be carried out.

[0004] However, due to the numerous steps involved in concrete construction, including formwork, pouring, and curing, the construction period for each layer of the well wall is relatively long. For temporary pipe jacking wells, subsequent backfilling and abandonment leads to material waste and may also become obstacles for other projects in the future. Utility Model Content

[0005] The purpose of this utility model is to provide a steel-concrete composite pipe jacking well to alleviate the technical problems existing in the prior art, such as the large number of construction steps involved in concrete construction, the waste of concrete materials after the working well is abandoned, and the well becoming an obstacle to other projects.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, this utility model provides a steel-concrete composite pipe jacking well, including a concrete well structure and multiple sets of steel well wall mechanisms. The top of the concrete well structure is provided with multiple sets of steel well wall mechanisms in sequence along the extension direction of the well, and the concrete well structure is provided with multiple first connecting members along its circumference. The concrete well structure is detachably connected to the corresponding steel well wall mechanism through the first connecting members.

[0008] The steel well wall mechanism is designed as a ring structure, and each group of steel well wall mechanisms is provided with multiple second connectors along the circumference. Adjacent steel well wall mechanisms are detachably connected through the second connectors.

[0009] Furthermore, the concrete well structure includes a concrete well wall and a bottom slab. The concrete well wall is configured as a tubular structure, and the bottom of the concrete well wall is provided with the bottom slab. The top of the concrete well wall is provided with the first connecting member at intervals along the circumference.

[0010] Furthermore, a limiting block is provided at the top of the concrete well wall along the circumferential direction, and the limiting block abuts against the corresponding steel well wall mechanism.

[0011] Furthermore, the steel-concrete composite jacking well also includes multiple waterproof components;

[0012] The waterproof component is provided in the gap between the concrete well wall and the corresponding steel well wall mechanism;

[0013] The waterproof component is provided in the gap between adjacent steel well wall structures.

[0014] Furthermore, the waterproof component includes a water-swellable rubber strip and a water-stopping rubber strip, both of which are designed as annular structures, and the water-swellable rubber strip is fitted over the outer side of the water-stopping rubber strip.

[0015] Furthermore, the steel well wall mechanism includes a steel well wall structure and a steel plate layer, the steel well wall structure is a ring structure, and the outer wall of the steel well wall structure is covered with the steel plate layer;

[0016] The adjacent steel well wall mechanisms are detachably connected via the second connector;

[0017] The concrete well wall is connected to the corresponding steel well wall mechanism via the first connector.

[0018] Furthermore, the steel well wall mechanism includes two sets of interconnected arc-shaped steel well walls. Each set of arc-shaped steel well walls has a frame assembly along its edge on its inner wall. Adjacent arc-shaped steel well walls are detachably connected through the frame assembly and the second connector.

[0019] The concrete well wall is connected to the corresponding frame assembly via the first connector.

[0020] Furthermore, the frame assembly includes reinforcing ribs and a steel frame, the steel frame being connected to the inner wall edge of the arc-shaped steel well wall, and the steel frame being provided with connecting holes spaced apart, the connecting holes being used to connect to the first connector or the second connector;

[0021] The reinforcing ribs are respectively connected to the steel frame and the arc-shaped steel well wall;

[0022] The steel well wall mechanism also includes a support rib, which is connected to the arc-shaped steel well wall and the steel frame.

[0023] Furthermore, the steel well wall mechanism also includes a limiting steel plate, which is connected to two adjacent steel plate layers, and the limiting steel plate is provided with lifting lugs.

[0024] Furthermore, the steel-concrete composite jacking well also includes a grouting pipe, one end of which is used to connect to a material supply device outside the well, and the other end passes through the steel well wall structure and is used to inject grout into the outside of the steel well wall structure.

[0025] This utility model can achieve the following beneficial effects:

[0026] In a first aspect, this utility model provides a steel-concrete composite pipe jacking well, including a concrete well structure and multiple sets of steel well wall mechanisms. Multiple sets of steel well wall mechanisms are sequentially arranged on the top of the concrete well structure along the extension direction of the well, and multiple first connectors are arranged along the circumference of the concrete well structure. The concrete well structure is detachably connected to the corresponding steel well wall mechanism through the first connectors. The steel well wall mechanism is set as a ring structure, and each set of steel well wall mechanisms is provided with multiple second connectors along the circumference. Adjacent steel well wall mechanisms are detachably connected through the second connectors.

[0027] In this invention, multiple sets of steel well wall mechanisms are connected vertically from bottom to top to the top of the concrete well structure. The connection between the concrete well structure and the corresponding steel well wall mechanism is detachable, and the connection between the multiple sets of steel well wall mechanisms is also detachable. Both the concrete well structure and the steel well wall mechanisms are ring-shaped, allowing the concrete well structure, along with the multiple sets of steel well wall mechanisms, to be lowered into the excavated well during construction.

[0028] Compared with the prior art, the steel-concrete composite pipe jacking well provided by this utility model can quickly assemble the pipe jacking well structure by sequentially connecting steel well wall mechanisms on the top of the concrete well structure, and disassemble the steel well wall mechanisms sequentially after use, which is convenient and quick.

[0029] In summary, this utility model at least alleviates the technical problems existing in the prior art, such as the numerous construction steps involved in using concrete for construction, the waste of concrete materials after the working well is abandoned, and the fact that it becomes an obstacle to other projects. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1This is a front view schematic diagram of the internal structure of a steel-concrete composite pipe jacking well provided in an embodiment of the present utility model;

[0032] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the diagram;

[0033] Figure 3 A schematic diagram of the single-piece arc-shaped steel well wall of the steel-concrete composite pipe jacking well provided in this embodiment of the utility model;

[0034] Figure 4 A three-dimensional structural diagram of a steel-concrete composite jacking well after a set of arc-shaped steel well walls are connected, as provided in an embodiment of this utility model.

[0035] Icons: 1-Concrete well structure; 11-Concrete well wall; 111-Limiting block; 12-Base plate; 2-Steel well wall mechanism; 21-Arc-shaped steel well wall; 22-Frame assembly; 221-Reinforcing rib; 222-Steel frame; 2221-Connecting hole; 23-Supporting rib; 3-First connector; 4-Steel plate layer; 5-Limiting steel plate; 51-Lifting lug; 6-Water-swellable rubber strip; 7-Water-stop rubber strip; 8-Grouting pipe; 9-Second connector. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0043] Example 1

[0044] This embodiment provides a steel-concrete composite jacking well, as shown in the following reference. Figure 1 The steel-concrete composite jacking well includes a concrete well structure 1 and multiple sets of steel well wall mechanisms. Multiple sets of steel well wall mechanisms are sequentially arranged on the top of the concrete well structure 1 along the extension direction of the well, and multiple first connectors 3 are arranged along the circumference of the concrete well structure 1. The concrete well structure 1 is detachably connected to the corresponding steel well wall mechanism through the first connectors 3. The steel well wall mechanism is set as a ring structure, and each set of steel well wall mechanisms is provided with multiple second connectors 9 along the circumference. Adjacent steel well wall mechanisms are detachably connected through the second connectors 9.

[0045] This utility model embodiment at least alleviates the technical problems existing in the prior art, such as the large number of construction steps involved in using concrete for construction, and the waste of concrete materials and obstruction of other projects after the working well is abandoned.

[0046] In this embodiment of the invention, multiple sets of steel well wall mechanisms 2 are connected vertically from bottom to top to the top of the concrete well structure 1. The connection between the concrete well structure 1 and the corresponding steel well wall mechanism 2 is detachable, and the connection between the multiple sets of steel well wall mechanisms 2 is also detachable. Both the concrete well structure 1 and the steel well wall mechanism 2 are ring-shaped structures, so that during construction, the concrete well structure 1 together with the multiple sets of steel well wall mechanisms 2 can be lowered into the excavated well.

[0047] Compared with the prior art, the steel-concrete composite pipe jacking well provided in this utility model embodiment can quickly assemble the pipe jacking well structure by sequentially connecting the steel well wall mechanism 2 to the top of the concrete well structure 1, and disassemble the steel well wall mechanism 2 sequentially after use, which is convenient and quick.

[0048] In an optional implementation of this embodiment, refer to Figure 1 The concrete well structure 1 includes a concrete well wall 11 and a bottom plate 12. The concrete well wall 11 is a tubular structure, and the bottom of the concrete well wall 11 is provided with the bottom plate 12. The top of the concrete well wall 11 is provided with first connecting members 3 at intervals along the circumference.

[0049] Specifically: the concrete well wall 11 is a cylindrical tubular structure, and the concrete well wall 11 encloses an accommodating space, and a bottom plate 12 is arranged horizontally in this accommodating space. The bottom plate 12 is located at the bottom of the concrete well wall 11, and a plurality of first connecting members 3 are arranged circumferentially at the top of the concrete well wall 11 for detachable connection with the corresponding steel well wall mechanism through the plurality of first connecting members 3. Preferably, the first connecting member 3 can be a connecting bolt.

[0050] Furthermore, referring to Figure 1 The top of the concrete well wall 11 is provided with a limiting block 111 along the circumferential direction, and the limiting block 111 abuts against the corresponding steel well wall mechanism.

[0051] Specifically: The top of the concrete well wall 11 is provided with a limiting block 111 along the circumferential direction, and the limiting block 111 is preferably connected to the inner edge of the top of the concrete well wall 11 to abut against the corresponding steel well wall mechanism to limit the steel well wall mechanism.

[0052] In an optional implementation of this embodiment, refer to Figure 1 and Figure 2 The steel-concrete composite pipe jacking well also includes multiple waterproof components; waterproof components are provided in the gap between the concrete well wall 11 and the corresponding steel well wall structure; waterproof components are provided in the gap between adjacent steel well wall structures.

[0053] Specifically: Waterproof components are installed between the concrete well wall 11 and the corresponding steel well wall structure, as well as between adjacent steel well wall structures. By installing waterproof components at the joints, the spaces inside and outside the concrete well wall 11 can achieve the function of waterproofing and water-proofing.

[0054] Furthermore, referring to Figure 2 The waterproof component includes a water-swellable rubber strip 6 and a water-stop rubber strip 7. Both the water-swellable rubber strip 6 and the water-stop rubber strip 7 are designed as ring structures, and the water-swellable rubber strip 6 is fitted over the water-stop rubber strip 7.

[0055] Specifically: Both the water-swellable rubber strip 6 and the water-stop rubber strip 7 are designed as ring structures, and the water-swellable rubber strip 6 is fitted over the outer side of the water-stop rubber strip 7; when in use, the water-swellable rubber strip 6 expands after encountering water, so as to seal the gaps between adjacent steel well wall structures or between the concrete well wall 11 and the corresponding steel well wall structure, while the water-stop rubber strip 7 located on the inner side can achieve a further waterproof function.

[0056] In an optional implementation of this embodiment, refer to Figure 1 and Figure 2 The steel well wall structure includes a steel well wall structure 2 and a steel plate layer 4. The steel well wall structure 2 is a ring structure, and the outer wall of the steel well wall structure 2 is covered with a steel plate layer 4. Adjacent steel well wall structures 2 are detachably connected by a second connector 9. The concrete well wall 11 is connected to the corresponding steel well wall structure 2 by a first connector 3.

[0057] Specifically: the outer wall of the steel well wall mechanism 2 is covered with a steel plate layer 4, and the steel well wall mechanism 2 together with the steel plate layer 4 form a circular pile structure. Multiple steel well wall mechanisms 2 are stacked in sequence along the vertical direction and connected by corresponding second connectors 9, and the second connectors 9 are preferably bolts. The steel well wall mechanism 2 located at the bottom is connected to the concrete well wall 11 by multiple first connectors 3.

[0058] Furthermore, referring to Figure 1 and Figure 2 The steel well wall mechanism 2 includes two sets of interconnected arc-shaped steel well walls 21. Each set of arc-shaped steel well walls 21 has a frame assembly 22 along its edge on the inner wall. Adjacent arc-shaped steel well walls 21 are detachably connected by the frame assembly 22 and the second connector 9. The concrete well wall 11 is connected to the corresponding frame assembly 22 by the first connector 3.

[0059] Specifically: The top and bottom of the arc-shaped steel well wall 21 are provided with frame components 22, and the frame components 22 are provided with multiple second connectors 9 at intervals along their extension direction so as to facilitate detachable connection with adjacent frame components 22. The bottommost frame component 22 is connected to the top of the concrete well wall 11 through multiple first connectors 3.

[0060] Furthermore, referring to Figure 2 , Figure 3 and Figure 4 The frame assembly 22 includes reinforcing ribs 221 and a steel frame 222. The steel frame 222 is connected to the inner wall edge of the arc-shaped steel well wall 21, and the steel frame 222 is provided with connecting holes 2221 spaced apart. The connecting holes 2221 are used to connect with the first connector 3 or the second connector 9. The reinforcing ribs 221 are connected to the steel frame 222 and the arc-shaped steel well wall 21 respectively. The steel well wall mechanism 2 also includes a support rib 23, which is connected to the arc-shaped steel well wall 21 and the steel frame 222.

[0061] Specifically: the steel frame 222 has a ring structure and is connected to the corresponding arc-shaped steel well wall 21. The reinforcing ribs 221 are distributed around the circumference of the steel frame 222 and are connected to the steel frame 222 and the arc-shaped steel well wall 21 respectively, so as to reinforce the steel frame 222 and the arc-shaped steel well wall 21. Correspondingly, the steel frame 222 is provided with connecting holes 2221 at intervals so as to facilitate connection through the connecting holes 2221 by the corresponding second connector 9.

[0062] In an optional implementation of this embodiment, refer to Figure 3 and Figure 4 The steel well wall mechanism also includes a limiting steel plate 5, which is connected to two adjacent steel plate layers 4, and the limiting steel plate 5 is provided with lifting lugs 51.

[0063] Specifically: the limiting steel plate 5 is connected to two adjacent steel plate layers 4 respectively, that is, the limiting steel plate 5 is located on the side of the steel plate layer 4 away from the steel well wall mechanism 2, and the limiting steel plate 5 is provided with lifting lugs 51 at intervals, so as to connect with the lifting lugs 51 by the lifting rope, and then lift the steel well wall mechanism by the lifting device.

[0064] In an optional implementation of this embodiment, refer to Figure 1 and Figure 2 The steel-concrete composite jacking well also includes a grouting pipe 8. One end of the grouting pipe 8 is used to connect to the material supply device outside the well, and the other end passes through the steel well wall mechanism and is used to inject grout into the outside of the steel well wall mechanism.

[0065] Specifically: One end of the grouting pipe 8 is used to connect to the material supply device outside the well, and the other end passes through the steel well wall mechanism and is used to inject grout into the outside of the steel well wall mechanism. In use, firstly, a precast concrete well wall 11 is constructed, with the first connecting piece 3 pre-embedded in the top of the well wall, and the limiting block 111 is also poured simultaneously. Then, the soil inside the well is excavated to allow the concrete well wall 11 to sink. When the top of the well wall is 0.5m above the ground surface, excavation and sinking are stopped. Next, multiple arc-shaped steel well walls 21 are connected to form a set of well walls, which are then hoisted to the top of the concrete well wall 11. Then, the soil inside the well is excavated again, with simultaneous grouting to reduce drag, allowing the working well to sink further. When the top of the well wall is 0.5m above the ground surface, excavation and sinking are stopped. The above steps are repeated until the jacking well sinks to the designed depth. After the pipeline construction is completed, the steel well wall mechanism 2 is dismantled in layers and the soil is backfilled.

[0066] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A steel-concrete composite jacking well, characterized in that, The concrete well structure (1) includes a concrete well structure (1) and multiple sets of steel well wall mechanisms. Multiple sets of steel well wall mechanisms are sequentially provided on the top of the concrete well structure (1) along the extension direction of the well. Multiple first connectors (3) are provided on the concrete well structure (1) along its circumference. The concrete well structure (1) is detachably connected to the corresponding steel well wall mechanism through the first connectors (3). The steel well wall mechanism is designed as a ring structure, and each group of steel well wall mechanisms is provided with multiple second connectors (9) along the circumference. Adjacent steel well wall mechanisms are detachably connected through the second connectors (9).

2. The steel-concrete composite jacking well according to claim 1, characterized in that, The concrete well structure (1) includes a concrete well wall (11) and a bottom plate (12). The concrete well wall (11) is a tubular structure, and the bottom of the concrete well wall (11) is provided with the bottom plate (12). The top of the concrete well wall (11) is provided with the first connecting member (3) at intervals along the circumference.

3. The steel-concrete composite jacking well according to claim 2, characterized in that, The top of the concrete well wall (11) is provided with a limiting block (111) along the circumferential direction, and the limiting block (111) abuts against the corresponding steel well wall mechanism.

4. The steel-concrete composite jacking well according to claim 2, characterized in that, It also includes multiple waterproof components; The waterproof component is provided in the gap between the concrete well wall (11) and the corresponding steel well wall mechanism; The waterproof component is provided in the gap between adjacent steel well wall structures.

5. The steel-concrete composite jacking well according to claim 4, characterized in that, The waterproof component includes a water-swellable rubber strip (6) and a water-stop rubber strip (7). Both the water-swellable rubber strip (6) and the water-stop rubber strip (7) are designed as annular structures, and the water-swellable rubber strip (6) is fitted over the outer side of the water-stop rubber strip (7).

6. The steel-concrete composite jacking well according to claim 2, characterized in that, The steel well wall structure includes a steel well wall structure (2) and a steel plate layer (4). The steel well wall structure (2) is a ring structure, and the outer wall of the steel well wall structure (2) is covered with the steel plate layer (4). The adjacent steel well wall mechanisms (2) are detachably connected to each other via the second connector (9); The concrete well wall (11) is connected to the corresponding steel well wall mechanism (2) via the first connector (3).

7. The steel-concrete composite jacking well according to claim 6, characterized in that, The steel well wall mechanism (2) includes two sets of interconnected arc-shaped steel well walls (21). Each set of arc-shaped steel well walls (21) has a frame assembly (22) along its edge on its inner wall. Adjacent arc-shaped steel well walls (21) are detachably connected by the frame assembly (22) and the second connector (9). The concrete well wall (11) is connected to the corresponding frame assembly (22) via the first connector (3).

8. The steel-concrete composite jacking well according to claim 7, characterized in that, The frame assembly (22) includes a reinforcing rib (221) and a steel frame (222). The steel frame (222) is connected to the inner wall edge of the arc-shaped steel well wall (21), and the steel frame (222) is provided with connecting holes (2221) spaced apart. The connecting holes (2221) are used to connect with the first connector (3) or the second connector (9). The reinforcing ribs (221) are connected to the steel frame (222) and the arc-shaped steel well wall (21) respectively; The steel well wall mechanism (2) also includes a support rib (23), which is connected to the arc-shaped steel well wall (21) and the steel frame (222).

9. The steel-concrete composite jacking well according to claim 6, characterized in that, The steel well wall mechanism also includes a limiting steel plate (5), which is connected to two adjacent steel plate layers (4), and the limiting steel plate (5) is provided with lifting lugs (51).

10. The steel-concrete composite jacking well according to any one of claims 1-9, characterized in that, It also includes a grouting pipe (8), one end of which is used to connect to a material supply device outside the well, and the other end passes through the steel well wall mechanism and is used to inject grout into the outside of the steel well wall mechanism.

Images