Pipe jacking construction method by static extrusion

Abstract

The application discloses a pipeline static extrusion pipe jacking construction method, which comprises the following steps: well drilling, equipment installation, pipeline static extrusion device jacking, buried pipeline jacking, direction adjustment of a machine head pipeline and machine head pipeline taking out. The application can safely conduct pipeline construction in loose sand or silt geology, and can extrude the sand or silt into the machine head through a static extrusion cylinder. Construction personnel can clean and transport the extruded sand or silt out of the machine head, without needing to explore outside the machine head pipeline for construction, thereby greatly protecting the personal safety of the construction personnel. Compared with a slurry balance pipe jacking construction method, the application can not cause damage to underground pipelines in an old city area and can not cause problems such as road surface bulging. Multiple direction adjustment assemblies are arranged behind the machine head pipeline, so that the subsequent advancing route can be corrected when the pipeline is displaced or deviated, thereby meeting the construction requirements of construction projects with strict requirements on elevation.

Description

Technical Field

[0001] This invention relates to the field of pipeline construction, and specifically to a static extrusion jacking method for manual pipe jacking construction that has strict requirements on the elevation of the pipeline construction. Background Technology

[0002] Currently, many old urban areas require pipeline renovation. Pipeline construction methods include open-cut laying and trenchless laying. Open-cut laying disrupts traffic and disrupts business operations, making it unsuitable for most old urban areas. Trenchless laying, on the other hand, allows for minimal or no excavation, minimizing disruption to residents and is the most commonly used method currently available.

[0003] Trenchless pipeline laying methods include manual excavation pipe jacking and slurry pipe jacking. However, slurry pipe jacking is unsuitable for areas with complex underground pipelines, such as old urban areas. The jacking process can damage existing water and gas pipelines, posing a significant safety risk. Furthermore, slurry pipe jacking requires sufficient soil cover above the pipeline to prevent road surface bulging and post-construction pipeline subsidence, making it unsuitable for old urban areas. Manual excavation pipe jacking requires overcoming friction between the pipeline and the surrounding soil to drive the pipeline into the soil at the designed slope and then removing the excavated soil. In practice, workers must excavate within the first section of the pipeline, removing soil or rocks before proceeding. This requires workers to lean out of the pipeline, increasing the risk of collapse in loose, quicksand, or silty soil, posing a serious safety hazard. In addition, due to the differences in the geographical environment of the construction site, the stability of the pipeline after jacking is poor, and the pipeline is prone to displacement and deviation during jacking. Therefore, the existing pipe jacking construction methods cannot meet the requirements for some pipeline construction projects with strict elevation requirements, which will bring many inconveniences to the pipe jacking construction and reduce construction efficiency. Summary of the Invention

[0004] To address the aforementioned problems in existing construction methods, this invention provides a static extrusion pipe jacking construction method. This method can complete pipe jacking construction in loose quicksand or silt soil, which not only greatly improves the personal safety of internal workers, but also allows for directional correction when the pipeline shifts or the pipe jacking deviates.

[0005] The present invention adopts the following technical solution:

[0006] The pipeline static extrusion pipe jacking construction method includes a pipeline static extrusion device, which includes a machine head pipe. The upper front part of the machine head pipe is fixedly connected to an arc-shaped protective eave, and the front part of the protective eave extends to the upper front of the machine head pipe.

[0007] A frustum-shaped static extrusion cylinder is installed inside the front port of the machine head pipe. The edge of the flared surface of the static extrusion cylinder is welded to the front port of the machine head pipe. The edge of the narrow opening of the static extrusion cylinder is fixedly connected to the inner wall of the machine head pipe by an annular fixing plate. Specifically, the edge of the narrow opening of the static extrusion cylinder is welded to the inner periphery of the fixing plate, and the outer periphery of the fixing plate is welded to the inner wall of the machine head pipe.

[0008] The inner rear part of the machine head pipe is provided with multiple directional components. The directional components include hydraulic cylinders and cylinder mounting bases. The hydraulic cylinders are fixed on the cylinder mounting bases, and the cylinder mounting bases are fixed on the inner wall of the machine head pipe. A gap is left between the hydraulic cylinders and the rear port of the machine head pipe.

[0009] The static extrusion pipe jacking construction method includes the following steps:

[0010] Step 1: Drilling a well; Based on the designed pipeline route and elevation requirements, dig a working well at the beginning of the construction section and install hoisting equipment above the working well;

[0011] Step 2: Equipment installation; A back wall is set up at the back of the working well, and a back steel plate is installed on the back wall. The hydraulic jack is installed inside the working well, with the rear of the hydraulic jack resting against the back steel plate. A slide rail is laid at the bottom of the working well in front of the hydraulic jack.

[0012] Step 3: Pipeline Static Extrusion Device Push-in; Place the machine head pipeline on the slide rail. A ring-shaped pad assembly is connected to the rear of the machine head pipeline. A ring-shaped backrest is fitted inside the ring-shaped pad assembly. Several semi-circular dome blocks are connected in sequence behind the ring-shaped backrest. The telescopic rod of the hydraulic jack equipment rests against the last semi-circular dome block. The extension of the telescopic rod pushes the machine head pipeline into the soil where the pipeline is to be buried. During the pushing-in process of the machine head pipeline, the construction personnel are located inside the machine head pipeline. The soil is squeezed into the machine head through the static extrusion cylinder. The construction personnel clean the soil inside the machine head and use a transport vehicle to transport the soil out until the machine head pipeline is almost completely inserted into the soil.

[0013] Step 4: Pipeline jacking; Remove the annular backrest and semi-circular dome block after the machine head pipeline. Fit a buried pipeline into the annular pad assembly. Connect the annular backrest to the rear of the buried pipeline, and connect several semi-circular dome blocks in sequence. The telescopic rod of the hydraulic jack equipment rests against the last semi-circular dome block. Relying on the extension of the telescopic rod, the machine head pipeline and the buried pipeline are jacked into the soil. During the jacking process, the construction personnel are located inside the machine head pipeline. The soil is squeezed into the machine head through the static extrusion cylinder. The construction personnel clean the soil inside the machine head and use a transport vehicle to transport the soil to the working well and then send it out of the well for removal until the buried pipeline is almost completely buried in the soil.

[0014] Step 5: Orientation of the head pipe; Repeat the process of step 4 to continuously push the buried pipe into the soil. During this process, laser guidance is continuously used to monitor whether there is any pipe jacking deviation. Once pipe displacement or pipe jacking deviation occurs, the extension rod of the hydraulic cylinder in the orienting component extends to press against the pad block component to achieve fine-tuning of the head pipe relative to the pad block component, thereby correcting the forward path of the pipe.

[0015] Step 6: Remove the head pipe; After the head pipe is about to reach the predetermined position, dig a receiving well until the head pipe reaches the receiving well, and then remove the head pipe from the receiving well.

[0016] Preferably, during the jacking process of the machine head pipe, when encountering stones that obstruct the progress, the construction workers clear the soil from the machine head and the static extrusion cylinder, and then use hand tools to break the obstructing stones inside the machine head pipe or under the protective eaves, and then transport them away by a transport vehicle, and then continue to jack the machine head pipe forward.

[0017] Preferably, there are four steering components, and each steering component's cylinder mounting base includes a cylinder mounting plate fixedly connected to the inner wall of the machine head pipe. A reinforcing rib plate is fixedly connected to the front side of the cylinder mounting plate, and the reinforcing rib plate is also fixedly connected to the inner wall of the machine head pipe. The rear end of the hydraulic cylinder is fixed to the cylinder mounting plate, and the hydraulic cylinder is also fixedly connected to the inner wall of the machine head pipe.

[0018] The specific process for reorienting the machine head pipeline is as follows:

[0019] When the machine head pipe needs to be adjusted slightly downwards, the extension rod of the hydraulic cylinder of the topmost directional component inside the machine head pipe extends and presses against the pad assembly, allowing the machine head pipe to be adjusted slightly downwards relative to the pad assembly and the buried pipe. When the machine head pipe needs to be adjusted slightly upwards, the extension rod of the hydraulic cylinder of the bottommost directional component inside the machine head pipe extends. When the machine head pipe needs to be adjusted slightly to the left, the extension rod of the hydraulic cylinder of the rightmost directional component inside the machine head pipe extends. When the machine head pipe needs to be adjusted slightly to the right, the extension rod of the hydraulic cylinder of the leftmost directional component inside the machine head pipe extends.

[0020] Preferably, the rear part of the protective eaves is fixedly welded to the upper front part of the machine head pipe.

[0021] Preferably, the static extrusion cylinder forms a flared static extrusion port at the front of the die head pipe.

[0022] Preferably, an arc-shaped reinforcing plate is welded to the outer periphery of the lower front part of the machine head pipe.

[0023] Preferably, an arc-shaped limiting baffle is provided on the inner wall of the head pipe between two adjacent steering components.

[0024] Preferably, the pad assembly includes a sleeve, with an annular pad fixedly connected to the inner front part of the sleeve, and the rear side of the pad and the rear part of the sleeve forming an annular cavity; the front part of the sleeve can be fitted into the gap left between the hydraulic cylinder and the rear port of the machine head pipe.

[0025] The beneficial effects of this invention are:

[0026] The static extrusion pipe jacking construction method provided by this invention overcomes the shortcomings of existing manual excavation pipe jacking methods, such as the inability to construct in loose quicksand or silty soils and the inability to construct projects with strict elevation requirements. This invention enables safe pipe construction in loose quicksand or silty soils. Through a uniquely designed machine head pipe, the machine head pipe is located at the forefront during pipe jacking, and the construction personnel are located inside the machine head pipe. For loose quicksand or silty soils, the static extrusion cylinder can squeeze the quicksand or silt into the machine head. The construction personnel can then clean and remove the squeezed quicksand or silt from inside the machine head pipe without having to extend their bodies outside, greatly protecting the personal safety of the construction personnel. At the same time, since it is not necessary to excavate in front of the machine head before jacking the pipe, there is no risk of collapse or other disasters. Furthermore, the protective eaves provided throughout the advance of the machine head pipe provide support for the quicksand above, further preventing collapse. In addition, the protective eaves are inserted into the quicksand or silt in front of the machine head. As the machine head pipeline advances, the protective eaves move through the silt, which provides a balancing force, preventing the machine head from deviating towards relatively soft areas. In special circumstances where construction workers need to work outside the machine head pipeline, the protective eaves also provide protection for the workers, greatly ensuring their safety.

[0027] Compared to the slurry-balanced pipe jacking method, the manual construction method of this invention will not damage underground pipelines in old urban areas, nor will it cause problems such as road surface bulging.

[0028] Multiple directional components are installed behind the jacking head pipe. When pipe displacement or jacking deviation occurs, the hydraulic cylinders in the directional components press against the pad components to achieve fine-tuning of the jacking head pipe, thereby correcting the subsequent forward path. This achieves the effect of being able to correct the jacking path at any time, solving the problem of not being able to correct deviations in the jacking process in time in the existing technology, and meeting the construction needs of construction projects with strict elevation requirements. Attached Figure Description

[0029] Figure 1 This is a structural diagram illustrating the construction process of the static extrusion pipe jacking construction method.

[0030] Figure 2 This is a three-dimensional structural diagram of the machine head pipe.

[0031] Figure 3 This is a 3D view of the pad assembly.

[0032] Figure 4 This is a front view of the machine head piping.

[0033] Figure 5 This is a rear view of the machine head piping.

[0034] Figure 6 This is a cross-sectional view of the machine head piping.

[0035] Figure 7 This is a cross-sectional view of the machine head pipe and pad assembly after connection. Detailed Implementation

[0036] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and specific examples:

[0037] Example 1

[0038] Combination Figures 2 to 7 The pipe static extrusion device includes a die head pipe 1 and a pad assembly, the pad assembly being able to be fitted onto the rear of the die head pipe.

[0039] Among them, an arc-shaped protective eave 2 is fixedly connected to the upper front part of the machine head pipe, the rear part of the protective eave is fixedly welded to the upper front part of the machine head pipe, and the front part of the protective eave extends to the upper front of the machine head pipe.

[0040] A frustum-shaped static extrusion cylinder 3 is installed inside the front port of the die head pipe 1. The edge of the flared surface of the static extrusion cylinder is welded to the front port of the die head pipe, and the edge of the narrow surface of the static extrusion cylinder is fixedly connected to the inner wall of the die head pipe by an annular fixing plate 4.

[0041] Specifically, the narrow opening edge of the static extrusion cylinder is welded to the inner periphery of the fixed plate 4, and the outer periphery of the fixed plate is welded to the inner wall of the die head pipe. The static extrusion cylinder forms a flared static extrusion port at the front of the die head pipe.

[0042] It should be noted that the inclination angle and width of the main body surface of the static extrusion cylinder 3 can be adjusted according to actual construction needs.

[0043] During the advance of the machine head pipe, mud or silt will be squeezed by the static extrusion cylinder and enter the machine head pipe through the static extrusion port. Construction personnel inside the machine head pipe can clean and remove the mud and sand that have entered the machine head pipe.

[0044] An arc-shaped reinforcing plate 5 is welded to the outer periphery of the lower front part of the machine head pipe. The reinforcing plate does not interfere with the protective edging. The reinforcing plate is used to strengthen the front end of the machine head pipe and increase its width.

[0045] Multiple directional components are installed in the inner rear part of the machine head pipe. The directional components include a hydraulic cylinder 6 and a cylinder mounting base 7. The hydraulic cylinder is fixed on the cylinder mounting base, and the cylinder mounting base is fixed on the inner wall of the machine head pipe.

[0046] There is a gap between the hydraulic cylinder 6 and the rear end of the machine head pipe.

[0047] There are four directional adjustment components, which are evenly distributed on the inner wall of the head pipe.

[0048] Each steering assembly's cylinder mounting base includes a cylinder mounting plate 8 fixedly connected to the inner wall of the head pipe. A reinforcing rib plate 9 is fixedly connected to the front side of the cylinder mounting plate, and the reinforcing rib plate is also fixedly connected to the inner wall of the head pipe.

[0049] The rear end of the hydraulic cylinder is fixed to the cylinder mounting plate, and the hydraulic cylinder is also fixedly connected to the inner wall of the machine head pipe.

[0050] An arc-shaped limiting baffle 10 is provided on the inner wall of the head pipe between two adjacent directional components. The limiting baffle 10 can strengthen the rear part of the head pipe.

[0051] The pad assembly includes a sleeve 11, with an annular pad 12 fixedly connected to the front inner part of the sleeve. The rear side of the pad and the rear part of the sleeve form an annular cavity 13, in which a buried pipe, such as a rainwater or sewage pipe, can be fitted.

[0052] Example 2

[0053] Combination Figure 1 The static extrusion jacking method for pipeline construction includes the following steps:

[0054] Step 1: Drill a well; according to the designed pipeline route and elevation requirements, excavate a working well 14 at the beginning of the construction section, and install hoisting equipment above the working well 14. If there are no hoisting equipment available, a crane or similar device can be used instead.

[0055] Step 2: Equipment installation; A back wall 15 is set up at the rear of the working well, a back steel plate is installed on the back wall, and a hydraulic jack device 16 is installed in the working well. The rear of the hydraulic jack device rests against the back steel plate, and a slide rail 17 is laid at the bottom of the working well in front of the hydraulic jack device.

[0056] Step 3: Pipeline Static Extrusion Device Pushing In; Place the machine head pipeline 1 on the slide rail 17. A ring-shaped pad assembly is connected to the rear of the machine head pipeline. A ring-shaped backrest 18 is fitted inside the ring-shaped pad assembly. Several semi-circular dome blocks 19 are connected in sequence behind the ring-shaped backrest. The semi-circular dome blocks are placed on the slide rail. The telescopic rod 20 of the hydraulic jack equipment abuts against the last semi-circular dome block. The extension of the telescopic rod pushes the machine head pipeline into the soil where the pipeline is to be buried. During the pushing process of the machine head pipeline, the construction personnel are located inside the machine head pipeline. The soil is squeezed into the machine head through the static extrusion cylinder 3. The construction personnel clean the soil squeezed into the machine head and use a transport vehicle to transport the soil out until the machine head pipeline is almost completely inserted into the soil.

[0057] The ring-shaped backrest 18 and the semi-circular dome block 19 are existing structures and will not be described in detail here.

[0058] Step 4: Pipeline jacking; Remove the annular backrest and semi-circular dome block after the machine head pipeline. Fit a buried pipeline 21 into the annular pad assembly. Connect the annular backrest to the rear of the buried pipeline, and connect several semi-circular dome blocks in sequence. The telescopic rod of the hydraulic jack equipment rests against the last semi-circular dome block. Relying on the extension of the telescopic rod, the machine head pipeline and the buried pipeline are jacked into the soil. During the jacking process, the construction personnel are located inside the machine head pipeline. The soil is squeezed into the machine head through the static extrusion cylinder. The construction personnel clean the soil inside the machine head and use a transport vehicle to transport the soil to the working well and then send it out of the well for removal until the buried pipeline is almost completely buried in the soil.

[0059] During the advancement of the machine head pipe in steps 3 and 4, the protective eaves 2 not only provide protection for the construction personnel, but also, being the first to penetrate the soil, provide support to the soil, quicksand, etc., above it, preventing collapse. Furthermore, the protective eaves remain embedded in the quicksand or silt ahead, advancing through the mud and sand throughout the entire advancement process. The mud and sand provide a balancing force for the protective eaves, preventing the machine head from deviating towards relatively soft areas.

[0060] For quicksand geology, the static extrusion cylinder constantly applies extrusion pressure to the quicksand during construction, preventing the quicksand from flowing uncontrollably into the machine head pipe and harming the construction personnel, thus ensuring the safety of the personnel.

[0061] As the die head pipe advances, the reinforcing plate is the first to be worn, thus better protecting the die head pipe body.

[0062] During the jacking process of the machine head pipe, when encountering obstacles such as rocks, the construction workers clear the soil from inside the machine head and static extrusion cylinder. Then, using hand tools inside the machine head pipe or under the protective eaves, they break up the obstructing rocks and transport them away by a truck. The machine head pipe is then pushed forward again. Even when working outside the machine head pipe, the protective eaves provide protection, so there are no safety concerns.

[0063] As the die head pipe advances, the force point behind the die head pipe falls on the directional assembly. That is, the pipe passes through the pad assembly, which distributes the applied jacking force on the directional assembly, thereby enabling the die head pipe to advance.

[0064] Step 5: Orientation of the head pipe; Repeat the process of step 4 to continuously push the buried pipe into the soil. During this process, laser guidance is continuously used to monitor whether there is any pipe jacking deviation. Once pipe displacement or pipe jacking deviation occurs, the extension rod of the hydraulic cylinder 6 in the orientation component extends to hold the pad assembly, thereby achieving a fine adjustment of the head pipe relative to the pad assembly, thus correcting the forward path of the pipe.

[0065] The specific process is as follows:

[0066] When it is necessary to slightly adjust the head pipe downwards, the extension rod of the hydraulic cylinder of the top-end directional component inside the head pipe extends and presses against the pad assembly, allowing the head pipe to be slightly adjusted downwards relative to the pad assembly and the buried pipe. Then, the jacking continues forward. During this process, as the head pipe advances, the direction will gradually be corrected, and the extension rod of the hydraulic cylinder will gradually retract until the direction is fully adjusted and the extension rod of the hydraulic cylinder is fully retracted. The jacking continues forward to achieve the purpose of directional correction.

[0067] When a slight upward adjustment of the machine head pipe is required, the extension rod of the hydraulic cylinder of the lowest directional component inside the machine head pipe extends; when a slight leftward adjustment is required, the extension rod of the hydraulic cylinder of the rightmost directional component inside the machine head pipe extends; when a slight rightward adjustment is required, the extension rod of the hydraulic cylinder of the leftmost directional component inside the machine head pipe extends. Which hydraulic cylinder to adjust specifically depends on the actual construction conditions.

[0068] When the hydraulic cylinder is being adjusted, the first part it comes into contact with is the pad assembly. The pad assembly prevents the hydraulic cylinder from directly contacting the buried pipeline, thus preventing the hydraulic cylinder from directly acting on the buried pipeline and damaging it.

[0069] The front part of the sleeve can fit into the gap left between the hydraulic cylinder and the rear end of the machine head pipe. It should be noted that, in order to allow for fine-tuning of the direction of the machine head pipe, the sleeve and the machine head pipe are not tightly fitted together, so that the machine head pipe can move relative to the sleeve.

[0070] Step 6: Remove the machine head pipe; After the machine head pipe is about to reach the predetermined position, excavate a receiving well 22 until the machine head pipe reaches the receiving well, and then remove the machine head pipe from the receiving well. Of course, the receiving well can also be excavated at the same time as the working well.

[0071] During actual construction, a working well can be excavated at each end, and a receiving well can be excavated in the middle. The method of this invention can be used to carry out simultaneous construction in opposite directions, thereby speeding up the construction progress.

[0072] Because this invention allows for the reorientation of the machine head pipeline, it can be applied to construction projects with strict elevation requirements, and is particularly suitable for silty and quicksand geological conditions.

[0073] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A method for static extrusion pipe jacking construction, characterized in that, The device includes a static extrusion device for pipes, which includes a die head pipe. An arc-shaped protective eave is fixedly connected to the upper front part of the die head pipe, and the front part of the protective eave extends to the upper front of the die head pipe. A frustum-shaped static extrusion cylinder is installed inside the front port of the machine head pipe. The edge of the flared surface of the static extrusion cylinder is welded to the front port of the machine head pipe. The edge of the narrow opening of the static extrusion cylinder is fixedly connected to the inner wall of the machine head pipe by an annular fixing plate. The edge of the narrow opening of the static extrusion cylinder is welded to the inner periphery of the fixing plate, and the outer periphery of the fixing plate is welded to the inner wall of the machine head pipe. The inner rear part of the machine head pipe is provided with multiple directional components. The directional components include hydraulic cylinders and cylinder mounting bases. The hydraulic cylinders are fixed on the cylinder mounting bases, and the cylinder mounting bases are fixed on the inner wall of the machine head pipe. A gap is left between the hydraulic cylinders and the rear port of the machine head pipe. The static extrusion pipe jacking construction method includes the following steps: Step 1: Drilling a well; Based on the designed pipeline route and elevation requirements, dig a working well at the beginning of the construction section and install hoisting equipment above the working well; Step 2: Equipment installation; A back wall is set up at the back of the working well, and a back steel plate is installed on the back wall. The hydraulic jack is installed inside the working well, with the rear of the hydraulic jack resting against the back steel plate. A slide rail is laid at the bottom of the working well in front of the hydraulic jack. Step 3: Pipeline Static Extrusion Device Push-in; Place the machine head pipeline on the slide rail. A ring-shaped pad assembly is connected to the rear of the machine head pipeline. A ring-shaped backrest is fitted inside the ring-shaped pad assembly. Several semi-circular top blocks are connected in sequence behind the ring-shaped backrest. The telescopic rod of the hydraulic jack equipment rests against the last semi-circular top block. The extension of the telescopic rod pushes the machine head pipeline into the soil where the pipeline is to be buried. During the jacking process of the machine head pipeline, the construction personnel are located inside the machine head pipeline. The soil is squeezed into the machine head pipeline through the static extrusion cylinder. The construction personnel clean the soil inside the machine head pipeline and use a transport vehicle to transport the soil out until the machine head pipeline is almost completely buried in the soil. The pad assembly includes a sleeve, with an annular pad fixedly connected to the inner front part of the sleeve, and the rear side of the pad and the rear part of the sleeve forming an annular cavity; the front part of the sleeve can fit into the gap left between the hydraulic cylinder and the rear port of the machine head pipe. Step 4: Pipeline jacking; Remove the annular backrest and semi-circular dome block after the machine head pipe, fit a buried pipe inside the annular pad assembly, connect the annular backrest to the rear of the buried pipe, and connect several semi-circular dome blocks in sequence. The telescopic rod of the hydraulic jack equipment rests against the last semi-circular dome block. Relying on the extension of the telescopic rod, the machine head pipe and the buried pipe are jacked into the soil. During the jacking process, the construction personnel are located inside the machine head pipe. The soil is squeezed into the machine head pipe by the static extrusion cylinder. The construction personnel clean the soil inside the machine head pipe and use a transport vehicle to transport the soil to the working well and then send it out of the well for removal until the buried pipe is almost completely buried in the soil. Step 5: Orientation of the head pipe; Repeat the process of step 4 to continuously push the buried pipe into the soil. During this process, laser guidance is continuously used to monitor whether there is any pipe jacking deviation. Once pipe displacement or pipe jacking deviation occurs, the extension rod of the hydraulic cylinder in the orienting component extends to press against the pad block component to achieve fine-tuning of the head pipe relative to the pad block component, thereby correcting the forward path of the pipe. Step 6: Remove the head pipe; After the head pipe is about to reach the predetermined position, dig a receiving well until the head pipe reaches the receiving well, and then remove the head pipe from the receiving well; During the jacking process of the machine head pipe, when encountering rocks that obstruct the progress, the construction workers cleared the soil from the machine head pipe and the static extrusion cylinder. Then, the construction workers used hand tools inside the machine head pipe or under the protective eaves to break up the rocks that were obstructing the progress, and then used a transport vehicle to remove them. After that, the machine head pipe continued to be jacked forward.

2. The method for static extrusion pipe jacking construction according to claim 1, characterized in that, There are four steering components. Each steering component has a cylinder mounting base including a cylinder mounting plate fixedly connected to the inner wall of the machine head pipe. A reinforcing rib plate is fixedly connected to the front side of the cylinder mounting plate, and the reinforcing rib plate is also fixedly connected to the inner wall of the machine head pipe. The rear end of the hydraulic cylinder is fixed to the cylinder mounting plate, and the hydraulic cylinder is also fixedly connected to the inner wall of the machine head pipe. The specific process for reorienting the machine head pipeline is as follows: When the head pipe needs to be adjusted slightly downward, the extension rod of the hydraulic cylinder of the topmost directional component inside the head pipe extends and presses against the pad assembly, thereby allowing the head pipe to be adjusted slightly downward relative to the pad assembly and the buried pipe; when the head pipe needs to be adjusted slightly upward, the extension rod of the hydraulic cylinder of the bottommost directional component inside the head pipe extends. When the head pipe needs to be adjusted slightly to the left, the extension rod of the hydraulic cylinder of the rightmost adjusting component inside the head pipe extends. When the head pipe needs to be adjusted slightly to the right, the extension rod of the hydraulic cylinder of the leftmost directional component inside the head pipe extends.

3. The method for static extrusion pipe jacking construction according to claim 1, characterized in that, The rear part of the protective eaves is fixedly welded to the upper front part of the machine head pipe.

4. The pipeline static extrusion jacking construction method according to claim 1, characterized in that, The static extrusion cylinder forms a funnel-shaped static extrusion port at the front of the die head pipe.

5. The pipeline static extrusion jacking construction method according to claim 1, characterized in that, An arc-shaped reinforcing plate is welded to the outer periphery of the lower front part of the machine head pipe.

6. The method for static extrusion pipe jacking construction according to claim 1, characterized in that, An arc-shaped limiting baffle is installed on the inner wall of the head pipe between two adjacent steering components.

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