Construction device for assisting underground multi-angle butt joint of pipe jacking riding well in central urban area

Abstract

The utility model discloses a construction device for assisting underground multi-angle butt joint of a jacking pipe riding well in a central urban area, which effectively improves the butt joint precision and construction safety of underground jacking pipes and ensures the accurate connection of the machine heads and pipelines through the design of the machine heads and the combined pipes which are arranged in a staggered manner and the combination of a welded arc-shaped steel plate structure. And the construction risk caused by unstable structure or leakage is reduced. The design of the riding well not only provides a ventilation and material transportation channel for constructors and improves the working environment of a closed space, but also enables the constructors to enter and exit from the shaft more conveniently, reduces the transportation difficulty and improves the construction efficiency. By means of the optimized wellbore welding and grouting design, the sealing performance and stability in the construction process are ensured, the influence of underground water leakage and soil layer disturbance on construction is effectively prevented, and therefore the construction precision, safety and overall efficiency are remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the field of construction devices, in particular to a construction device for assisting underground multi-angle docking of a pipe-jacking riding well in a central urban area. Background Art

[0002] With the development of cities, infrastructure related to people's livelihoods, such as water supply and drainage pipelines, can no longer meet the needs. Most of them have been in disrepair for a long time and are leaking and aging. The renovation of old underground pipelines and the construction of new underground pipelines have become urgent issues to be solved in urban development. As a good non-excavation technology, pipe jacking is becoming more and more common in the implementation of underground pipelines in various cities. However, dense buildings and busy road traffic can no longer adapt to the construction conditions of traditional pipe jacking, which uses the working well to exit the hole and the receiving well to enter the hole. Therefore, the underground docking construction technology of pipe jacking is increasingly adopted in the construction of central urban areas.

[0003] Currently, underground pipe jacking construction is widely used in urban infrastructure construction, particularly in complex geological conditions and densely populated urban areas. Traditional underground pipe jacking docking methods typically rely on covert excavation, but this method has significant drawbacks. First, covert excavation requires high-quality reinforced soil. Inadequate reinforcement can lead to soil collapse or structural instability during construction. Second, welding operations within confined spaces pose a high risk of fire hazards, and the limited operating space makes it difficult for construction workers to effectively weld, increasing safety hazards. Furthermore, the docking accuracy of the machine head in traditional pipe jacking construction sometimes fails to meet ideal requirements, potentially impacting the accuracy of subsequent docking operations and posing challenges to construction quality. These accuracy issues are primarily due to the complexity of the underground environment, including soil heterogeneity, groundwater interference, and slight deviations that may occur during the advancement of the pipe jacking machine. Inadequate docking accuracy can require additional adjustments or even rework for subsequent pipe connections, which not only increases construction time and cost but also may cause local structural instability, further impacting overall construction quality. Finally, the confined working space makes material transportation and personnel entry and exit of the shaft difficult, resulting in low construction efficiency and delays.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a construction device for assisting underground multi-angle docking of a jacking pipe riding well in a central urban area, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A construction device for assisting underground multi-angle docking of a central urban area pipe jacking and riding well comprises: a soil portion for supporting and stabilizing a first machine head and a second machine head;

[0008] The first and second machine heads are located inside the soil portion and are movably installed for thrust and propulsion during pipe jacking operations. A combination pipe is provided at the rear end thereof for connecting the machine heads with the pipeline and transmitting pressure and propulsion.

[0009] The riding well is located above the soil part, connecting the drilled holes of the first and second machine heads, serving as a construction passage, providing the space required for construction and convenient passage of personnel;

[0010] The shaft is set in the riding shaft to support the machine head and form a connecting channel. The positioning steel plate is welded to the machine head to ensure a stable connection between the machine head and the shaft.

[0011] Multiple arc-shaped steel plates are located in the gap between the first head and the second head, and are used to connect the gap between the two combined pipes to prevent soil leakage and enhance structural stability. They are fixed between the two combined pipes by welding.

[0012] Optionally, grouting holes are provided on the upper sides of the inner walls of the first and second machine heads, which are used to inject double-liquid slurry between the machine heads and the soil layer to seal the gap during construction.

[0013] Optionally, exploration holes are provided at the breast plates of the first and second machine heads for monitoring soil leakage in front of the machine heads.

[0014] Optionally, the wellbore includes three sections of steel cylinders, and every two adjacent steel cylinders are connected by welding.

[0015] Optionally, a ladder is provided on the inner wall of the welded shaft to provide a safe passage for construction workers.

[0016] Optionally, the deviation of the staggered axis of the machine head is ±5cm.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0018] The staggered installation of the machine head and combined pipe design, combined with the welded arc-shaped steel plate structure, effectively improves the docking accuracy and construction safety of underground jacking pipes, ensures the precise connection between the machine head and the pipe, and reduces construction risks caused by structural instability or leakage. The riding well design not only provides construction workers with ventilation and material transportation channels, improving the working environment in confined spaces, but also makes it more convenient for personnel to enter and exit the wellbore, reduces transportation difficulties, and improves construction efficiency. Through the optimized wellbore welding and grouting design, the sealing and stability of the construction process are ensured, effectively preventing the impact of groundwater leakage and soil disturbance on construction, thereby significantly improving the accuracy, safety and overall efficiency of construction.

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] In the picture:

[0022] Figure 1 Schematic diagram of the cross-sectional structure of the construction device;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the construction device;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the construction device;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the combined pipe docking.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 2. Positioning steel plate; 3. First machine head; 4. Second machine head; 5. Combined pipe; 7. Wellbore; 8. Curved steel plate; 9. Grouting hole; 10. Exploration hole.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] See also Figure 1-4As shown, in this embodiment, a construction device for assisting underground multi-angle docking of a pipe jacking and a horse-riding well in a central urban area is provided, comprising a soil portion for supporting and stabilizing a first machine head 3 and a second machine head 4;

[0031] The first and second heads 3 and 4 are located inside the soil portion and are movably mounted for thrust and propulsion during pipe jacking operations. A combination pipe 5 is provided at the rear end thereof for connecting the heads to the pipeline and transmitting pressure and propulsion.

[0032] The riding well is located above the soil part and connects the drilled holes of the first machine head 3 and the second machine head 4. It serves as a construction passage, providing the space required for construction and convenient passage of personnel;

[0033] The shaft 7 is provided in the riding shaft and is used to support the machine head and form a connecting channel. The stable connection between the machine head and the shaft 7 is ensured by welding the positioning steel plate 2 to the machine head;

[0034] Multiple curved steel plates 8, located in the gap between the first and second machine heads 3 and 4, are used to bridge the gap between the two combined pipes 5, preventing soil seepage and enhancing structural stability. They are secured between the two combined pipes 5 by welding. The staggered arrangement of machine heads, combined pipes 5, and welded curved steel plates 8 enables precise docking of underground pipes, while providing ventilation and transportation channels through the saddle shaft, effectively enhancing structural strength and construction precision. Precise docking of the machine heads is crucial for smooth pipe jacking. The staggered design of the machine heads and combined pipes 5 enables the machine to operate flexibly in complex underground environments, ensuring stability and high precision when docking the two machine heads. The connection of the combined pipes 5 further optimizes the pipe's load-bearing capacity and stability during advancement, preventing bending or misalignment due to uneven stress. The welded curved steel plates 8 enhance the structural strength of the connection. They not only fill the gap between the combined pipes 5 but also effectively enhance the seal of the connection, preventing soil seepage and water intrusion, and ensuring stability during pipe jacking.

[0035] In this embodiment, grouting holes 9 are provided above the inner wall circumference of the first machine head 3 and the second machine head 4, which are used to inject double slurry between the machine head and the soil layer to seal the gap during the construction process. The grouting holes 9 are used for slurry injection to ensure the sealing during the construction process and prevent water seepage in the soil layer from affecting the construction environment and the advancement of the machine head. Underground construction, especially in pipe jacking operations, faces the risks of water seepage in the soil layer and water flow disturbance. These factors not only affect the safety of construction, but may also cause difficulties and equipment failures during the advancement of the machine head.

[0036] In this embodiment, the breast plates of the first and second machine heads 3 and 4 are each provided with a probe hole 10 for monitoring soil leakage in front of the machine heads. The probe hole 10 is used to monitor soil leakage and leakage in front of the machine heads. If leakage is detected, water-stopping measures can be taken in a timely manner to prevent leakage from affecting construction.

[0037] In this embodiment, the wellbore 7 includes three sections of steel cylinders, and every two adjacent steel cylinders are connected by welding. The steel cylinders constitute the main supporting structure of the wellbore 7, and the welding connection improves the stability of the wellbore 7 and prevents instability during the sinking process. In underground pipe jacking construction, the wellbore 7 is subjected to tremendous pressure from the soil layer and groundwater. Especially in the process of pipe jacking or sinking of the wellbore 7, stability is particularly important. As the basic structure of the wellbore 7, the steel cylinder provides a strong mechanical support force to ensure that the wellbore 7 will not be deformed or shifted during the construction process. By connecting each section of the steel cylinder by welding, a solid overall structure is formed, which not only enhances the compressive strength of the wellbore 7, but also avoids the risks caused by loose or loose single joints.

[0038] In this embodiment, a ladder is provided on the inner wall of the welded shaft 7 to provide a safe passage for construction workers. The ladder provides a convenient passage for construction workers to go up and down the shaft 7, ensuring the safe operation of construction workers in a confined space. Since the shaft 7 is usually located underground, the space is relatively narrow and the construction environment is complex. The ladder can not only effectively reduce the difficulty of construction workers in moving in a small space, but also provide a rapid passage for personnel evacuation in an emergency. Especially when performing high-risk operations in the shaft 7, the provision of the ladder improves the safety of the operation and avoids safety accidents caused by limited space or emergency situations.

[0039] In this embodiment, the deviation of the machine head axis staggering is within ±5cm. The control of the machine head axis ensures the docking accuracy of the pipe jacking machine and avoids the docking error affecting subsequent construction.

[0040] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention should be understood by anyone. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention. The technology, shape, and structure not described in detail in the present invention are all known technologies.

Claims

1. A construction device for auxiliary underground multi-angle docking of pipe jacking and horse riding well in the central urban area, characterized in that: include: A soil portion for supporting and stabilizing the first head (3) and the second head (4); The first machine head (3) and the second machine head (4) are located inside the soil portion and are installed in a movable manner to provide thrust and propulsion during pipe jacking operations. A combination pipe (5) is provided at the rear end thereof to connect the machine heads with the pipeline and transmit pressure and propulsion. The riding well is located above the soil portion and connects the drilled holes of the first machine head (3) and the second machine head (4), serving as a construction passage, providing the space required for construction and convenient passage of personnel; A shaft (7) is provided in the riding shaft for supporting the machine head and forming a connecting passage, and a positioning steel plate (2) is provided below and welded to the machine head to ensure a stable connection between the machine head and the shaft (7); A plurality of arc-shaped steel plates (8) are located at the gap between the first machine head (3) and the second machine head (4), and are used to connect the gap between the two combined pipes (5) to prevent soil leakage and enhance structural stability. The plates are fixed between the two combined pipes (5) by welding.

2. A construction device for auxiliary underground multi-angle docking of a pipe jacking and riding well in a central urban area according to claim 1, characterized in that: Grouting holes (9) are provided above the inner peripheral sides of the first machine head (3) and the second machine head (4), which are used to inject double liquid slurry between the machine head and the soil layer to seal the gap during the construction process.

3. A construction device for auxiliary underground multi-angle docking of a pipe jacking and riding well in a central urban area according to claim 1, characterized in that: The breast plates of the first machine head (3) and the second machine head (4) are both provided with exploration holes (10) for monitoring the leakage of the soil layer in front of the machine heads.

4. The construction device for auxiliary underground multi-angle docking of a pipe jacking and riding well in a central urban area according to claim 1 is characterized in that: The wellbore (7) comprises three sections of steel cylinders, and every two adjacent steel cylinders are connected by welding.

5. The construction device for auxiliary underground multi-angle docking of a pipe jacking and riding well in a central urban area according to claim 1 is characterized in that: A ladder is provided on the inner wall of the welded shaft (7) to provide a safe passage for construction workers.

6. The construction device for auxiliary underground multi-angle docking of a pipe jacking and riding well in a central urban area according to claim 1 is characterized in that: The deviation of the staggered axis of the machine head is ±5cm.

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