Deeply buried pipeline low-disturbance cutting-off equipment and construction method

Abstract

The application discloses a kind of low disturbance cutting off and abolishing equipment of deep buried pipeline and construction method, comprising: shell, erect on ground, vertically slide way is formed in inside;Right-angle support, it is arranged in the both sides of shell, for supporting shell;Cutting-off support, it is arranged in vertically slide way, for carrying out alignment to deep buried pipeline, cutting-off support includes: pipe fitting, it is slidably arranged in vertically slide way, with a movable chamber, the inner wall of movable chamber is sequentially provided with multiple sets of positioning recess along the direction of deep buried pipeline pipe diameter;Round pipe, multiple round pipes are arranged in movable chamber in a line;The horizontal length of round pipe splicing is greater than the pipe diameter of deep buried pipeline;Static pressure device, it is arranged above cutting-off support, for cutting-off support is pressed to the top of deep buried pipeline, adjusting device, it is arranged below pressure stabilizing block, and with pressure stabilizing block and form horizontal sliding connection, for the round pipe of pulling out is adjusted to the splicing of original adjacent round pipe.The application can cut off underground deep buried pipeline, and it is convenient for the pulling out of pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geotechnical engineering, more particularly to a deep-buried ground pipeline low-disturbance cutting and removing equipment and construction method. BACKGROUND

[0002] With the modernization of the city, the available land is becoming less and less, leading to traffic congestion in many cities, seriously affecting the normal operation of the city. To further improve and expand the city's transportation network, it is necessary to fully exploit the city's underground space and accelerate the construction of subways to reasonably dredge traffic flow and alleviate the current urban traffic congestion. The subway has gradually become the focus of urban transportation construction. During the construction of underground structures, the existence of underground abandoned pipelines often hinders the construction of underground structures and seriously affects the construction progress. For abandoned pipelines with large burial depth and long length, the method of open excavation removal is time-consuming and labor-intensive. The method of cutting and removing can be adopted.

[0003] Therefore, it is necessary to develop a deep-buried ground pipeline low-disturbance cutting and removing equipment and construction method to facilitate the removal of abandoned pipelines. SUMMARY

[0004] The purpose of the present application is to disclose a deep-buried ground pipeline low-disturbance cutting and removing equipment and construction method for cutting underground deep-buried pipelines to facilitate the removal of pipelines to solve the above technical problems.

[0005] To achieve the above purpose, the present application provides a deep-buried ground pipeline low-disturbance cutting and removing equipment, comprising:

[0006] The shell is erected on the ground and has a vertical slide formed inside;

[0007] The right-angle support is arranged on both sides of the shell and is used to support the shell;

[0008] The cutting support is arranged in the vertical slide and is used to align the deep-buried pipeline and form a cutting channel. The cutting support comprises:

[0009] The pipe fitting is slidingly arranged in the vertical slide and has a movable chamber. The inner wall of the movable chamber is sequentially provided with a plurality of positioning grooves in the direction of the diameter of the deep-buried pipeline;

[0010] The circular pipe has a plurality of groups and an outer wall provided with a protrusion for cooperating with the positioning groove. The plurality of groups of circular pipes are arranged in a straight line in the movable chamber. The horizontal length of the circular pipe splicing is greater than the diameter of the deep-buried pipeline;

[0011] The static pressure device is arranged above the cutting support and is used to press the cutting support above the deep-buried pipeline. The static pressure device comprises:

[0012] a pressure unit arranged above the vertical slide for providing vertical static pressure for the cutting support;

[0013] a pressure stabilizing block fixed at the bottom of the pressure unit for ensuring uniform force between the pipe and the circular pipe;

[0014] an adjusting device arranged below the pressure stabilizing block and horizontally slidably connected with the pressure stabilizing block for adjusting the pulled-out circular pipe to the splicing position of the adjacent circular pipe;

[0015] a drilling machine for extending into the circular pipe and cutting the deep buried pipe in the radial direction.

[0016] As a further improvement of the present application, the pipe and the circular pipe are both multi-sectioned, and the sections of the pipe and the circular pipe are vertically spliced by the card slot and the bolt structure.

[0017] As a further improvement of the present application, the adjusting device comprises:

[0018] a driving unit arranged in the pressure stabilizing block and capable of horizontally moving;

[0019] a fixed block arranged below the pressure stabilizing block and driven by the driving unit;

[0020] a sliding block embedded in the fixed block and connected with the fixed block through an elastic member, the sliding block being capable of partially extending to the outside of the fixed block under the elastic force of the elastic member and being in clamping cooperation with the recess cavity formed in the inner wall of the circular pipe.

[0021] As a further improvement of the present application, the shell is a U-shaped structure with one side open.

[0022] As a further improvement of the present application, four recesses are circumferentially formed in the inner wall of the circular pipe near the top end, and the sliding block is arranged with four groups of the recesses.

[0023] As a further improvement of the present application, the adjusting device further comprises a limiting rod penetrating through the fixed block and in movable limiting cooperation with the sliding block to overcome the elastic force of the elastic member and enable the fixed block to smoothly enter the inside of the circular pipe.

[0024] The present application further discloses a construction method of the deep buried pipe low disturbance cutting and abandonment equipment, comprising the following steps:

[0025] S1, surveying and positioning the position of the underground abandoned pipe on the construction area, and lofting the projection area of the abandoned pipe;

[0026] S2, arrange the shell, right-angle support, cutting support and static pressure device on the abandoned pipeline projection area, press the pipe into the deep buried pipeline through the static pressure device, and then press the round pipe into the deep buried pipeline to arrange the round pipes in a straight line in the movable chamber;

[0027] S3, use the drilling machine to drill into the round pipe to break the abandoned pipeline;

[0028] S4, pull out the round pipe through the static pressure device, translate the round pipe to the splicing position of the adjacent two round pipes arranged originally through the adjusting device, press the round pipe into the deep buried pipeline again through the static pressure device, and use the drilling machine to completely cut and break the deep buried pipeline.

[0029] Compared with the prior art, the beneficial effects of the present application are:

[0030] (1) A deep buried pipeline low disturbance cutting and abandoning equipment, by the combination of the shell, right-angle support, cutting support, static pressure device, adjusting device and drilling machine, the deep buried pipeline can be cut without excavating the site, the structure is simple, the operation is convenient, the cutting support is pressed into the upper part of the deep buried pipeline by the static pressure device; wherein the pipe can play a supporting role to prevent the surrounding soil from collapsing when the rotary drilling machine enters the round pipe for construction, the round pipe plays a certain limiting role on the drill rod of the drilling machine, avoiding the problem that the drill rod is inclined due to the instability of the fulcrum when the drilling machine cuts the deep buried pipeline; the pipe and the round pipe are spliced in multiple sections to increase the overall stiffness and avoid bending deformation of the cutting support during the pressing process; the round pipe is installed in the movable chamber of the pipe through the cooperation of the positioning groove and the protrusion, the deep buried pipeline is cut and broken by the drilling machine through the passage of the round pipe, and the relative position of the round pipe and the deep buried pipeline is changed through the adjusting device and the static pressure device, so that the deep buried pipeline can be completely cut, and the deep buried pipeline can be completely removed. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a front view schematic diagram of the cutting and abandoning equipment in the deep buried pipeline low disturbance cutting and abandoning equipment and construction method of the present application;

[0032] Figure 2 It is a top view schematic diagram of the cutting and abandoning equipment in the deep buried pipeline low disturbance cutting and abandoning equipment and construction method of the present application;

[0033] Figure 3 It is a cooperation schematic diagram of the pipe and the round pipe in the deep buried pipeline low disturbance cutting and abandoning equipment and construction method of the present application;

[0034] Figure 4 It is a schematic diagram of the cutting support and the deep buried pipeline in the deep buried pipeline low disturbance cutting and abandoning equipment and construction method of the present application, and the round ring-shaped bolt is shown in the diagram.

[0035] Figure 5 For Figure 1 A-A is a cross-sectional view.

[0036] In the figure: 1, housing; 2, right-angle support; 3, cutting support; 4, static pressure device; 5, adjusting device; 31, pipe fitting; 32, round pipe; 41, pressure unit; 42, pressure stabilizing block; 51, driving unit; 52, fixed block; 53, sliding block; 54, elastic member; 55, limiting rod; 310, positioning groove; 320, protruding block; 321, bolt; a, deeply buried pipeline. DETAILED DESCRIPTION

[0037] The present application will be described in detail below with reference to the embodiments shown in the drawings, but it should be noted that these embodiments are not a limitation on the present application, and equivalent transformations or substitutions of function, method, or structure made by those of ordinary skill in the art based on these embodiments are within the scope of the present application.

[0038] Please refer to Figures 1 to 5 A specific embodiment of the low-disturbance cutting and abandonment equipment for deeply buried pipelines is shown.

[0039] Please refer to Figure 1 With Figure 2 As shown in the figure, a low-disturbance cutting and abandonment equipment for deeply buried pipelines includes a housing 1, right-angle supports 2, cutting supports 3, a static pressure device 4, an adjusting device 5, and a drilling machine. The housing 1 is erected on the ground and has a vertical slide formed inside. The housing 1 is a U-shaped structure with one side open, which facilitates observation of the static pressure process of the static pressure device 4 and makes it easy to move the housing 1 to allow the drilling machine to enter the cutting support 3 for work. The right-angle supports 2 are arranged on both sides of the housing 1 to support the housing 1 and ensure the perpendicularity of the vertical slide of the housing 1. The cutting support 3 is arranged in the vertical slide to align the deeply buried pipeline a and form a cutting channel. The cutting support 3 includes a pipe fitting 31, which is slidingly arranged in the vertical slide and has a movable chamber. The inner wall of the movable chamber is provided with a plurality of positioning grooves 310 along the direction of the pipe diameter of the deeply buried pipeline a. A round pipe 32 has a plurality of protruding blocks 320 on the outer wall to cooperate with the positioning grooves 310. The plurality of round pipes 32 are arranged in a straight line in the movable chamber. Figure 4As shown, the horizontal length of the spliced circular pipe 32 is greater than the pipe diameter of the deep buried pipeline a; the pipe piece 31 and the circular pipe 32 are both multi-section, and each section of the pipe piece 31 and the circular pipe 32 are vertically spliced by using clamping grooves and latches 321; among them, the pipe piece 31 can play a supporting role to prevent the surrounding soil from collapsing when the rotary drilling rig enters the circular pipe 32 for construction, and the multi-section splicing of the pipe piece 31 and the circular pipe 32 increases the overall rigidity to avoid bending deformation of the cutting support 3 during the pressing process; the circular pipe 32 is installed in the movable chamber of the pipe piece 31 by cooperating the positioning groove 310 with the protrusion 320, which on the one hand ensures that the circular pipe 32 will not deviate horizontally during the pressing process of the static pressure device 4, ensuring the accurate alignment of the deep buried pipeline a, and on the other hand, referring to Figure 3 As shown, the circular pipe 32 and the pipe wall of the circular pipe 32 will form an area that cannot be drilled by the drilling machine, and by opening multiple sets of positioning grooves 310, the protrusions 320 provided on the outer wall of the circular pipe 32 can be matched with different sets of positioning grooves 310 to completely cover the cutting area of the pipe diameter of the deep buried pipeline a.

[0040] The static pressure device 4 is arranged above the cutting support 3 and is used to press the cutting support 3 above the deep buried pipeline a, and the static pressure device 4 includes: a pressure unit 41 slidingly arranged above the vertical slide, used to provide vertical static pressure for the cutting support 3; a pressure stabilizing block 42 fixedly arranged at the bottom of the pressure unit 41, used to ensure that the stress between the pipe piece 31 and the circular pipe 32 is uniform; an adjusting device 5 arranged below the pressure stabilizing block 42 and horizontally slidingly connected with the pressure stabilizing block 42, used to adjust the pulled-out circular pipe 32 to the splicing position of the adjacent circular pipe 32; referring to Figure 1 With Figure 5As shown, the adjusting device 5 comprises: a driving unit 51, a fixed block 52 and a sliding block 53; the driving unit 51 is arranged inside the pressure stabilizing block 42 and can be displaced horizontally; the fixed block 52 is arranged below the pressure stabilizing block 42 and is driven by the driving unit 51; the sliding block 53 is embedded inside the fixed block 52 and is connected with the fixed block 52 through the elastic member 54, the sliding block 53 can be partially extended to the outside of the fixed block 52 under the elastic force of the elastic member 54 and is in clamping cooperation with the recess cavity formed on the inner wall of the circular pipe 32. The inner wall of the circular pipe 32 is provided with four grooves along the circumferential direction at the top end, and the sliding block 53 is provided with four groups of grooves corresponding to the grooves. The adjusting device 5 further comprises a limiting rod 55, the limiting rod 55 penetrates through the fixed block 52 and forms movable limiting cooperation with the sliding block 53, so as to overcome the elastic force of the elastic member 54 and make the fixed block 52 smoothly enter the inside of the circular pipe 32. The drilling machine is used for extending into the inside of the circular pipe 32 and cutting the deep buried pipeline a in the radial direction. The drill bit of the drilling machine comprises a power rod, a fixed sleeve ring, a linkage rod, a rotary blade, a triangular tooth and a conical tip, the linkage rod is hinged with the fixed sleeve ring, and the linkage rod is hinged with the rotary blade. The spring is arranged between the conical tip and the power rod, which plays a buffering protection role, the fixed sleeve ring is sleeved on the power rod, and the fixed sleeve ring is slid up and down to drive the rotary blade to rotate through the linkage rod, so as to change the maximum diameter of the drill bit and realize the zooming of the drilling range of the drill bit.

[0041] The application further discloses a construction method of the low-disturbance cutting and abolishing equipment for deep buried pipeline, which comprises the following steps: S1, surveying and positioning the position of the underground abandoned pipeline on the construction area and lofting the projection area of the abandoned pipeline; S2, arranging the shell 1, the right-angle support 2, the cutting support 3 and the static pressure device 4 on the projection area of the abandoned pipeline, pressing the pipe piece 31 into the deep buried pipeline a through the static pressure device 4, then sequentially pressing the circular pipe 32 into the deep buried pipeline a, so that the circular pipes 32 are arranged in a line in the movable chamber; S3, extending the drilling machine into the circular pipe 32 to drill down, and damaging the abandoned pipeline; S4, pulling out the circular pipe 32 through the static pressure device 4, translating the circular pipe 32 to the splicing position of the adjacent two circular pipes 32 arranged originally through the adjusting device 5, pressing the circular pipe 32 into the deep buried pipeline a through the static pressure device 4 again, and cutting and damaging the deep buried pipeline a completely through the drilling machine. In step S2, the first pipe piece 31 is pressed in first, the second pipe piece 31 is inserted into the block-shaped bolt 321 after the second pipe piece 31 lower end protrusion 320 is spliced with the first pipe piece 31 upper end recess after the first pipe piece 31 is pressed into the soil, and the third pipe piece 31 is pressed into the soil in the same way as the second pipe piece 31. Because the buried depth of the abandoned pipeline is large, the pipe piece 31 is divided into three sections to improve the rigidity and prevent the pipe piece from being bent and deformed. When the circular pipe 32 is pressed in, the two protrusions 320 on the outer wall of the circular pipe 32 are aligned with the recesses on the inner wall of the I-shaped steel, and then the circular pipe 32 is slowly pressed in, and the pressing mode is the same as that of the I-shaped steel. The bolt 321 is a 1 / 4 circular ring.

[0042] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A construction method of a low-disturbance cutoff abandonment equipment for a deeply buried pipeline, characterized by, The method comprises the following steps: S1, surveying and positioning the location of the underground abandoned pipeline on the construction area, and lofting the abandoned pipeline projection area; S2, arranging the shell, right-angle support, cutting support and static pressure device on the abandoned pipeline projection area, pressing the pipe into the deep buried pipeline through the static pressure device, and then pressing the round pipe into the deep buried pipeline, so that the round pipes are arranged in a straight line in the movable chamber; S3, using the drilling machine to drill into the round pipe and break the abandoned pipeline; S4, pulling out the round pipe through the static pressure device, adjusting the round pipe to the splicing position of the adjacent two round pipes through the adjusting device, pressing the round pipe into the deep buried pipeline through the static pressure device, and completely cutting and breaking the deep buried pipeline through the drilling machine. The deep buried pipeline low disturbance cutting and abandoning equipment comprises: a shell arranged on the ground and having a vertical slide formed inside; a right-angle support arranged on both sides of the shell for supporting the shell; a cutting support arranged in the vertical slide for aligning the deep buried pipeline and forming a cutting channel, the cutting support comprising: a pipe slidingly arranged in the vertical slide and having a movable chamber, the inner wall of the movable chamber being provided with a plurality of positioning grooves in the direction of the pipe diameter of the deep buried pipeline; a plurality of round pipes provided with protrusions on the outer wall for cooperating with the positioning grooves, the plurality of round pipes being arranged in a straight line in the movable chamber, and the horizontal length of the round pipe splicing being greater than the pipe diameter of the deep buried pipeline; a static pressure device arranged above the cutting support for pressing the cutting support above the deep buried pipeline, the static pressure device comprising: a pressure unit slidingly arranged above the vertical slide for providing vertical static pressure for the cutting support; a pressure stabilizing block fixedly arranged at the bottom of the pressure unit for ensuring uniform stress between the pipe and the round pipe; an adjusting device arranged below the pressure stabilizing block and horizontally slidingly connected with the pressure stabilizing block for adjusting the pulled-out round pipe to the splicing position of the adjacent round pipes; a drilling machine for drilling into the round pipe and cutting the deep buried pipeline radially; the adjusting device comprising: a driving unit arranged in the pressure stabilizing block and capable of moving horizontally; a fixed block arranged below the pressure stabilizing block and driven by the driving unit; a sliding block embedded in the fixed block and connected with the fixed block through an elastic member, the sliding block being capable of partially extending to the outside of the fixed block under the elastic force of the elastic member and being in clamping cooperation with the recess cavity formed in the inner wall of the round pipe.

2. The construction method according to claim 1, characterized in that, The shell is a U-shaped structure with one side open.

3. The construction method according to claim 1, characterized in that, The pipe and the round pipe are both multi-section, and each section of the pipe and each section of the round pipe are vertically spliced through the clamping groove and the bolt structure.

4. The construction method according to claim 3, characterized in that, The inner wall of the round pipe is provided with four grooves along the circumferential direction near the top end, and the sliding block is provided with four groups of grooves corresponding to the grooves.

5. The construction method according to claim 1, characterized in that, The adjusting device further comprises a limiting rod penetrating through the fixed block and forming movable limiting cooperation with the sliding block to overcome the elastic force of the elastic member, so that the fixed block smoothly enters the inside of the round pipe.

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