Manual pipe jacking first section tunneling device

Abstract

The utility model discloses a manual pipe jacking first section tunneling device which comprises a pipe jacking pipeline body and a tunneling device body. In the utility model, the pipe-jacking pipeline body and the tunneling device body are connected into a whole, so that the rigidity, strength and stability between the pipe-jacking pipeline body and the tunneling device body are ensured to the greatest extent; the upper hat brim structure on the tunneling device body can ensure the safety of constructors in the pipe to the maximum extent; the combined structure of the transverse reinforcing ribs, the annular supporting plates and the stabilizing ribs is used for supporting the pressure-bearing device in the pipe on the tunneling device body, the structural strength of the tunneling device body can be guaranteed, the overall stable trend of the pipeline can be improved, and the set axis of the pipeline can be guaranteed. Small right-angle prisms for controlling and adjusting the axis of the pipeline are arranged in the pipe jacking pipeline body and the tunneling device body, so that the axis of the pipeline is controlled and adjusted more accurately and scientifically.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial pipe jacking construction in municipal water supply and drainage engineering, and particularly relates to an artificial pipe jacking first-section tunneling device. Background Technique

[0002] Since the main working faces of pipe jacking construction are all concentrated in underground operations, the axis accuracy is difficult to control due to various factors. As the pipe advances gradually during the jacking process, operators assist in excavating, loading, and transporting soil during the tunneling process at the front end of the pipe, and there are potential risks such as sudden soil collapse, pipe gushing, and the sliding of floating stones above the pipe roof. Along with the advancing length, the control of the pipe axis and elevation becomes a major problem, as well as the hidden danger of deformation of the first-section pipe due to long-term soil excavation.

[0003] In the face of the above problems, usually, reinforcement methods such as grouting the soil on the excavation surface are adopted. This method has disadvantages such as high cost, long time, and environmental pollution caused by on-site construction, and the grouting surface is not easy to control. For axis control, one is the traditional method of closely monitoring by surveyors and adjusting in a timely manner, and the other is to arrange automated monitoring equipment. The former requires a large number of personnel, and the frequent measurement intersects with the pipe jacking construction, which is not conducive to safe operation. The latter is expensive, and it is not easy to detect axis deviation after the equipment is damaged during the process.

[0004] Therefore, it is necessary to develop an artificial pipe jacking first-section tunneling device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to design an artificial pipe jacking first-section tunneling device to solve the above problems.

[0006] The utility model realizes the above purpose through the following technical solutions:

[0007] An artificial pipe jacking first-section tunneling device, comprising:

[0008] At least one pipe jacking pipe body; the first end of the pipe jacking pipe body is connected to the first end of the tunneling device body;

[0009] The tunneling device body; both the pipe jacking pipe body and the tunneling device body are formed into circular columnar structures. The upper part of the second end of the tunneling device body extends longer than the lower part, and forms an inclined surface.

[0010] Furthermore, an annular wear-resistant plate is installed at the second end of the tunneling device body.

[0011] Furthermore, the artificial pipe jacking first-section tunneling device further comprises an annular support plate. The tunneling device body is sleeved on the outer side wall of the annular support plate, and the axis of the tunneling device body is perpendicular to the annular support plate.

[0012] Furthermore, the first-section tunneling device for manual pipe jacking further includes a plurality of transverse reinforcing ribs which are arranged along the axial direction of the tunneling device body. The outer sides of the plurality of transverse reinforcing ribs are welded to the inner side wall of the tunneling device body, and the plurality of transverse reinforcing ribs are also connected to the annular support plate.

[0013] Furthermore, the first-section tunneling device for manual pipe jacking further includes a plurality of stabilizing ribs. The first side wall of the stabilizing rib is connected to the inner side wall of the tunneling device body, and the second side wall of the stabilizing rib is connected to one end face of the annular support plate. The first side wall and the second side wall of the stabilizing rib are two adjacent side walls.

[0014] Furthermore, the first-section tunneling device for manual pipe jacking further includes a plurality of right-angle prisms. At least one right-angle prism is provided on each of the pipe jacking pipe body and the tunneling device body. The plurality of right-angle prisms are arranged on the same straight line, and this straight line is parallel to the axis line of the pipe jacking pipe body. There is no obstruction when observing the right-angle prisms from the second end of the pipe jacking pipe body with a measuring instrument.

[0015] Preferably, when the right-angle prism is inside the pipe jacking pipe body, it is installed on the inner side wall of the pipe jacking pipe body. When the right-angle prism is inside the tunneling device body, it is installed on the inner side wall of a transverse reinforcing rib.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The pipe jacking pipe body and the tunneling device body are connected to form a whole, which maximally ensures the stiffness, strength and stability between the two.

[0018] The upper brim structure on the tunneling device body can maximally ensure the safety of the construction personnel inside the pipe; the combined structure of the transverse reinforcing ribs, the annular support plate and the stabilizing ribs of the in-pipe support and pressure-bearing device on the tunneling device body can not only ensure the structural strength of the tunneling device body, but also improve the overall stable trend of the pipeline and ensure the established axis of the pipeline.

[0019] Right-angle prisms for controlling and adjusting the pipeline axis are installed inside the pipe jacking pipe body and the tunneling device body, making the control and adjustment of the pipeline axis more accurate and scientific. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the pipe jacking body and the tunneling device after connection in this application;

[0021] Figure 2 is a front view of the front end of the tunneling device body in this application;

[0022] Figure 3 is a side view of the front end of the tunneling device body in this application;

[0023] In the figure: 1. Jacking pipe body, 2. Boring device body, 3. Pipe connection end, 4. Earth-cutting edge, 5. Earth-cutting end, 6. Transverse reinforcing rib, 7. Annular support plate, 8. Upper brim, 9. Lower cutting body, 10. Stabilizing rib, 11. Measuring base, 12. Right-angle prism, 13. Wear-resistant plate. Detailed implementation mode

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0026] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0028] In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" 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 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.

[0030] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings.

[0031] like Figures 1-3 As shown, a first section excavation device for artificial pipe jacking includes:

[0032] At least one jacking pipe body 1; a first end of the jacking pipe body 1 is welded to a first end of a tunneling device body 2, and a welding point is a pipe connection end 3;

[0033] The tunneling device body 2; the jacking pipe body 1 and the tunneling device body 2 are both formed into a circular columnar structure, and the upper extension length of the second end of the tunneling device body 2 is longer than the lower extension length, and is formed into an inclined surface. The upper part of the second end of the tunneling device body 2 is formed into an upper brim 8, the lower part is formed into a lower cutting body 9, and the middle part is a soil cutting end 5. The outer end of the upper brim 8 is a soil cutting edge 4, and the maximum extension length of the soil cutting edge 4 is 1 / 2 of the length of the tunneling device body, which plays multiple roles of cutting the forward force point of the soil body, controlling the forward axis direction of the pipeline, and protecting the construction safety of the operators. The upper brim 8 and the lower cutting body 9 work independently, cutting the soil body and advancing.

[0034] like Figure 3 As shown, in some embodiments, an annular wear-resistant plate is installed at the second end of the excavation device body 2. The soil cutting edge body is a built-in 55° groove, and a stainless steel wear-resistant body is installed on the surface. When the excavation device body is produced, it should be manufactured using a cutting machine, leaving an obtuse angle of about 5mm. The stainless steel wear-resistant body installed on the surface must be pressed and formed as a whole after the excavation device body is rolled and finalized, and then welded with welding materials of the same stainless steel material.

[0035] like Figures 1-3 As shown, in some embodiments, the first section of the artificial jacking pipe excavation device further includes an annular support plate 7, the excavation device body 2 is sleeved on the outer side wall of the annular support plate 7, and the axis of the excavation device body 2 is perpendicular to the annular support plate 7. A notch is provided at the lower end of the annular support plate 7 to facilitate subsequent excavation and transportation actions.

[0036] like Figures 1-3As shown, in some embodiments, the first section tunneling device of the manual pipe jacking further includes three transverse reinforcing ribs 6. The three transverse reinforcing ribs 6 are arranged along the axial direction of the tunneling device body 2. The outer sides of the three transverse reinforcing ribs 6 are welded to the inner side wall of the tunneling device body 2, and the three transverse reinforcing ribs 6 are also connected to the annular support plate 7. The three transverse reinforcing ribs 6 are respectively installed on the top and both side walls of the tunneling device body 2.

[0037] As Figures 1-3 As shown, in some embodiments, the first section tunneling device of the manual pipe jacking further includes eight stabilizing ribs 10. The first side wall of the stabilizing rib 10 is connected to the inner side wall of the tunneling device body 2, and the second side wall of the stabilizing rib 10 is connected to one end face of the annular support plate 7. The first side wall and the second side wall of the stabilizing rib 10 are two adjacent side walls. Two stabilizing ribs 10 are arranged below the two transverse reinforcing ribs 6 on both sides, and two stabilizing ribs 10 are arranged between the two transverse reinforcing ribs 6. The thickness of the stabilizing rib is not less than 20 mm.

[0038] As Figure 3 As shown, in some embodiments, the first section tunneling device of the manual pipe jacking further includes a plurality of right-angle prisms 12. At least one right-angle prism 12 is provided on each of the pipe jacking pipe body 1 and the tunneling device body 2. The plurality of right-angle prisms 12 are arranged on the same straight line, and this straight line is parallel to the axis line of the pipe jacking pipe body 1, and there is no obstruction when observing the right-angle prism 12 from the second end of the pipe jacking pipe body 1 with a measuring instrument. When the right-angle prism is inside the pipe jacking pipe body 1, it is installed on the inner side wall of the pipe jacking pipe body 1. When the right-angle prism is inside the tunneling device body 2, it is installed on the inner side wall of a transverse reinforcing rib 6. The right-angle prism 12 is installed through a measuring base 11. The right-angle prism 12 can be connected to the measuring base 11 by bolts, and the measuring base 11 is welded and installed on the inner side wall of the pipe jacking pipe body 1 and the inner side wall of the transverse reinforcing rib 6. When removing the right-angle prism, first remove the bolts, and then knock or mechanically cut the measuring base welded to the body.

[0039] During the jacking process of the pipe by the hydraulic jack, the axis control is the core control element, and there are mainly the following methods:

[0040] 1. Laser measurement deviation correction method: Right-angle prisms are evenly arranged in each section of the pipe jacking pipe body and the tunneling device body. The surveyor sets up the measuring instrument in the pipe jacking working pit, aligns the center of the pipe jacking pipe body, sweeps the light beam on the center of the right-angle prism, records the measurement data, ensures that the axis change is measured about every 500 mm of jacking, obtains the position information of each point in real time, records the data change, and stops jacking when encountering data beyond the design specification, analyzes and adjusts the deviation correction method to detect and correct the deviation in time;

[0041] 2. Pipe Excavation in Front for Deviation Correction Method: Adjust the trend of the pipeline by excavating slightly in front of the pipeline. Excavate upward to correct the positive deviation, and reduce or stop excavating to correct the negative deviation;

[0042] 3. Jack Pad Deviation Correction Method: Gradually reduce the deviation by adjusting the telescopic amount of the deviation correction jack on the side of the pipe body of the pipe jacking. After the axis is normal, the jack advances according to the normal stroke. The main method to control the jacking direction is to change the jacking force of the single-sided jack. During this period, the strokes of the main jack side and the auxiliary side are calculated;

[0043] 4. Wooden Bar Deviation Correction Method: When the pipeline deflects downward too much, wooden bars can be set under the pipeline for support to make the pipeline return to the designed position. When the pipeline deflects to one side too much, wooden bars can be set on both sides of the pipeline for support and adjustment, and small-angle and small-range adjustments are used to make the pipeline return to the designed axis.

[0044] Adhere to minor adjustments to avoid sharp direction changes and loss of control of the pipeline's advancing direction. After the pipeline has advanced a certain distance, if the deviation correction effect is not ideal, the speed will significantly slow down. When the front end has not yet returned to the reference line, reverse deviation correction should be started, otherwise the opposite deviation will occur.

[0045] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An artificial pipe jacking first section tunneling device, characterized in that, Comprising: At least one pipe jacking pipe body (1); the first end of the pipe jacking pipe body (1) is connected to the first end of the tunneling device body (2). The tunneling device body (2); both the pipe jacking pipe body (1) and the tunneling device body (2) are formed into an annular columnar structure, and the upper part of the second end of the tunneling device body (2) extends longer than the lower part, and is formed into an inclined plane.

2. The first-section tunneling device for manual pipe jacking according to claim 1, characterized in that, An annular wear-resistant plate is installed at the second end of the tunneling device body (2).

3. The first section tunneling device for manual pipe jacking according to claim 1, characterized in that, The first-section tunneling device for manual pipe jacking further includes an annular support plate (7), the tunneling device body (2) is sleeved on the outer side wall of the annular support plate (7), and the axis line of the tunneling device body (2) is perpendicular to the annular support plate (7).

4. The first section tunneling device for manual pipe jacking according to claim 3, characterized in that The first-section tunneling device for manual pipe jacking further includes a plurality of transverse reinforcing ribs (6), the plurality of transverse reinforcing ribs (6) are arranged along the axial direction of the tunneling device body (2), the outer sides of the plurality of transverse reinforcing ribs (6) are welded to the inner side wall of the tunneling device body (2), and the plurality of transverse reinforcing ribs (6) are also connected to the annular support plate (7).

5. An artificial pipe jacking first section tunneling device according to claim 3, characterized in that, The first-section tunneling device for manual pipe jacking further includes a plurality of stabilizing ribs (10), the first side wall of the stabilizing rib (10) is connected to the inner side wall of the tunneling device body (2), the second side wall of the stabilizing rib (10) is connected to one end face of the annular support plate (7), and the first side wall and the second side wall of the stabilizing rib (10) are two adjacent side walls.

6. The first section tunneling device for manual pipe jacking according to claim 4, characterized in that, The first-section tunneling device for manual pipe jacking further includes a plurality of right-angle prisms (12), at least one right-angle prism (12) is provided on each of the pipe jacking pipe body (1) and the tunneling device body (2), the plurality of right-angle prisms (12) are arranged on the same straight line, this straight line is parallel to the axis line of the pipe jacking pipe body (1), and there is no obstruction when observing the right-angle prism (12) from the second end of the pipe jacking pipe body (1) with a measuring instrument.

7. An artificial pipe jacking first section tunneling device according to claim 6, characterized in that, When the right-angle prism is inside the pipe jacking pipe body (1), it is installed on the inner side wall of the pipe jacking pipe body (1), and when the right-angle prism is inside the tunneling device body (2), it is installed on the inner side wall of a transverse reinforcing rib (6).

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