Protection method of gas pipeline

Abstract

The invention discloses a gas pipeline protection method, and relates to the technical field of underground pipeline protection, and the method comprises the following steps: arranging a plurality of probe points at intervals in a construction area of a road surface along the design extension direction of a gas pipeline; excavating a stratum downwards along a preset path at each probe point to form a pilot tunnel until the pilot tunnel reveals the gas pipeline, and determining the actual position of the gas pipeline in each pilot tunnel; the actual extending direction of the gas pipeline is determined according to the multiple actual positions, and a protection area extending in the actual extending direction is marked out in the construction area; a reinforcing position is determined in the protection area with the intersection point of the road surface and the protection area as a reference point; a reinforcing structure is constructed on the stratum where the reinforcing position is located; and constructing a protection structure in the protection area. According to the technical scheme, the gas pipeline buried underground can be accurately positioned, the gas pipeline can be effectively protected, and the protection effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of underground pipeline protection, and in particular to a gas pipeline protection method. Background Art

[0002] During road construction, it is often necessary to cross pipelines, especially gas pipelines. Gas pipelines need to be protected to prevent damage and gas leaks. However, during the protection process, it is often difficult to accurately locate the buried gas pipelines, resulting in ineffective protection and poor protection results. Summary of the Invention

[0003] The main purpose of the present invention is to propose a gas pipeline protection method, which aims to solve the technical problem that it is difficult to accurately locate the gas pipeline buried underground, resulting in the inability to effectively protect the gas pipeline and poor protection effect.

[0004] To achieve the above-mentioned purpose, the present invention proposes a gas pipeline protection method for construction where a road surface crosses a gas pipeline, the method comprising:

[0005] Arrange multiple detection points at intervals along the designed extension direction of the gas pipeline in the construction area of the road surface;

[0006] At each of the exploration points, a pilot pit is formed by excavating the ground downward along a preset path until the pilot pit reveals the gas pipeline, and the actual position of the gas pipeline in each of the pilot pits is determined; wherein the horizontal extension direction of the preset path is perpendicular to the designed extension direction;

[0007] determining the actual extension direction of the gas pipeline according to the multiple actual positions, and demarcating a protection zone extending along the actual extension direction within the construction area;

[0008] Determining a reinforcement position within the protected area using an intersection of the road surface and the protected area as a reference point;

[0009] constructing a reinforcement structure in the ground layer where the reinforcement position is located;

[0010] A protective structure is constructed within the protected area.

[0011] In one embodiment, before the step of distributing a plurality of detection points at intervals along the designed extension direction of the gas pipeline in the construction area of the road surface, the method further includes:

[0012] Determine the preset number of the detection points according to the designed length of the gas pipeline in the construction area and the preset distance between two adjacent detection points; wherein the preset number is at least three;

[0013] The step of setting a plurality of detection points at intervals along the designed extension direction of the gas pipeline in the construction area of the road surface comprises:

[0014] The preset number of detection points are evenly arranged in the construction area of the road surface along the designed extension direction of the gas pipeline.

[0015] In one embodiment, before the step of determining the preset number of detection points based on the designed length of the gas pipeline in the construction area and the preset distance between two adjacent detection points, the method further includes:

[0016] The preset distance is determined according to the design curvature of the gas pipeline.

[0017] In one embodiment, the step of applying a reinforcement structure to the stratum where the reinforcement position is located includes:

[0018] A plurality of reinforcement piles are installed in the stratum where the reinforcement position is located to form the reinforcement structure.

[0019] In one embodiment, the step of placing a plurality of reinforcement piles in the stratum where the reinforcement position is located includes:

[0020] A plurality of the reinforcement piles are installed in the stratum where the reinforcement position is located to form pile rows on both sides of the gas pipeline perpendicular to the actual extension direction; wherein each pile row includes a plurality of the reinforcement piles arranged in sequence along the actual extension direction.

[0021] In one embodiment, the step of placing a plurality of reinforcement piles in the stratum where the reinforcement position is located to form the pile rows on both sides of the gas pipeline perpendicular to the actual extension direction includes:

[0022] A plurality of the reinforcement piles are constructed in the stratum where the reinforcement position is located to form a plurality of the pile rows on both sides of the gas pipeline perpendicular to the actual extension direction; wherein the plurality of the pile rows are arranged in sequence along a direction perpendicular to the actual extension direction.

[0023] In one embodiment, the bottom of each reinforcement pile extends at least 0.5 m below the gas pipeline.

[0024] In one embodiment, the step of constructing a protective structure within the protected area includes:

[0025] Constructing support columns in the protected area;

[0026] A cover plate is applied on the top of the support column to form the protection structure.

[0027] In one embodiment, after the step of applying a protective structure to the reinforced area, the method further comprises:

[0028] The ground in the construction area is vacuum preloaded.

[0029] In one embodiment, after the step of applying a protective structure to the reinforced area, the method further comprises:

[0030] A vibration sensor and a displacement sensor are buried in the stratum where the reinforcement position is located.

[0031] The technical solution of the present invention can determine the actual position of the gas pipeline in each pilot pit by arranging multiple exploration points at intervals along the designed extension direction of the gas pipeline in the road construction area, and excavating a pilot pit perpendicular to the preset path downward at each exploration point until the gas pipeline buried in the stratum is exposed. By determining the actual position of the gas pipeline in multiple pilot pits and fitting the multiple actual positions to determine the actual extension direction of the gas pipeline, the gas pipeline buried underground can be positioned more accurately, and the protection zone can be determined according to the actual extension direction. The protective structure can be applied to the protection zone, which can provide protection for the gas pipeline more accurately and with good protection effect. In addition, a reinforcement position is set at the intersection of the road surface and the protection zone, and a reinforcement structure is applied to the stratum where the reinforcement position is located. The stratum where the road surface crosses the gas pipeline can be reinforced, thereby providing protection for the weak position where the road surface crosses the gas pipeline, and further providing protection for the gas pipeline with better protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] Figure 1 A schematic flow chart of an embodiment of a gas pipeline protection method provided by the present invention;

[0034] Figure 2 A schematic diagram of the layout of the construction area in an embodiment of the gas pipeline protection method provided by the present invention;

[0035] Figure 3 A schematic structural diagram of a protection structure in an embodiment of a gas pipeline protection method provided by the present invention;

[0036] Figure 4 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0037] Description of Figure Numbers:

[0038] 100. Construction area; 10. Gas pipeline; 20. Road surface; 30. Protection zone; 40. Reinforcement position; 50. Reinforcement structure; 51. Pile row; 511. Reinforcement piles; 60. Protection structure; 61. Support column; 62. Cover plate; 70. Pilot pit.

[0039] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] During road construction, it is often necessary to cross pipelines, especially gas pipelines. Gas pipelines need to be protected to prevent damage and gas leaks. However, during the protection process, it is often difficult to accurately locate the buried gas pipelines, resulting in ineffective protection and poor protection results.

[0044] The present invention provides a method for protecting a gas pipeline.

[0045] See also Figures 1 to 2 In one embodiment of the present invention, the gas pipeline protection method is used for construction where a road surface crosses a gas pipeline, and the method comprises:

[0046] Step S100: arranging a plurality of detection points at intervals along the designed extension direction of the gas pipeline in the construction area of the road surface;

[0047] Step S200: excavating the ground at each exploration point along a preset path downward to form a pilot pit until the pilot pit reveals the gas pipeline, and determining the actual position of the gas pipeline in each pilot pit; wherein the horizontal extension direction of the preset path is perpendicular to the designed extension direction;

[0048] Step S300: determining the actual extension direction of the gas pipeline according to the multiple actual positions, and demarcating a protection zone extending along the actual extension direction within the construction area;

[0049] Step S400, determining a reinforcement position within the protection zone using the intersection of the road surface and the protection zone as a reference point;

[0050] Step S500, constructing a reinforcement structure in the stratum where the reinforcement position is located;

[0051] Step S600: construct a protective structure in the protection area.

[0052] The technical solution of the present invention determines the actual position of the gas pipeline 10 within each pilot pit 70 by distributing multiple exploration points at intervals along the designed extension direction of the gas pipeline 10 in the construction area 100 of the road surface 20. A pilot pit 70 is then excavated perpendicularly and downwardly along a predetermined path at each exploration point until the gas pipeline 10 buried in the stratum is exposed. By determining the actual position of the gas pipeline 10 within the multiple pilot pits 70 and fitting the multiple actual positions to determine the actual extension direction of the gas pipeline 10, the buried gas pipeline 10 can be located relatively accurately. Furthermore, a protective structure can be installed in the protected area 30 based on the actual extension direction, providing relatively precise protection for the gas pipeline 10 with good protection effects. In addition, a reinforcement position 40 is set at the intersection of the road surface 20 and the protection zone 30, and a reinforcement structure 50 is applied to the stratum where the reinforcement position 40 is located. The stratum where the road surface 20 passes through the gas pipeline 10 can be reinforced, thereby providing protection for the weak position where the road surface 20 passes through the gas pipeline 10, and further providing protection for the gas pipeline 10, with a better protection effect.

[0053] In one embodiment of the present invention, before step S100, the method further includes:

[0054] Step A100: determining a preset number of the detection points according to a designed length of the gas pipeline in the construction area and a preset distance between two adjacent detection points; wherein the preset number is at least three;

[0055] Step S100 includes:

[0056] Step S110 : arranging the preset number of detection points at even intervals along the designed extension direction of the gas pipeline in the construction area of the road surface.

[0057] Specifically, the preset number of probe points is determined based on the designed length and preset spacing of the gas pipeline 10 in the construction area 100, and a more appropriate number of probe points can be determined. Then, the preset number of probe points are arranged along the designed extension direction in the construction area 100. This can effectively avoid the insufficient number of actual positions of the gas pipeline 10 obtained due to an insufficient number of probe points, thereby avoiding the difficulty in accurately determining the actual extension direction of the gas pipeline 10 due to an insufficient number of actual positions obtained, and can achieve higher accuracy.

[0058] In one embodiment of the present invention, before step A100, the method further includes:

[0059] Step B100: determining the preset distance according to the design curvature of the gas pipeline.

[0060] Furthermore, the preset spacing can be determined based on the designed curvature of the gas pipeline. For example, in areas with large bends, the preset spacing can be appropriately reduced and the number of probe points increased to more accurately detect changes in the pipeline's position and thus more accurately determine the pipeline's actual extension direction. In areas with relatively straight pipelines, the preset spacing can be appropriately increased and the number of probe points reduced, effectively reducing the construction workload.

[0061] In one embodiment of the present invention, step S500 includes:

[0062] In step S510 , a plurality of reinforcement piles are installed in the stratum where the reinforcement position is located to form the reinforcement structure.

[0063] Specifically, if Figure 4 As shown, by installing multiple reinforcement piles 511 at the reinforcement position 40, the stability of the stratum can be effectively enhanced to prevent the stratum from settling or shifting during the construction process, thereby providing more stable support for the gas pipeline 10.

[0064] In one embodiment of the present invention, step S510 includes:

[0065] Step S511 , constructing a plurality of reinforcement piles in the stratum where the reinforcement position is located to form pile rows on both sides of the gas pipeline perpendicular to the actual extension direction; wherein each pile row includes a plurality of reinforcement piles sequentially arranged along the actual extension direction.

[0066] Furthermore, if Figure 4 As shown, multiple reinforcement piles 511 are installed on both sides of the gas pipeline 10 perpendicular to the actual extension direction, forming pile rows 51 on both sides of the gas pipeline 10 perpendicular to the actual extension direction. Each pile row 51 comprises multiple reinforcement piles 511 arranged sequentially along the actual extension direction. The pile rows 51 composed of multiple reinforcement columns can effectively enhance the stability of the stratum, thereby providing more stable support for the gas pipeline 10 and better protection.

[0067] In one embodiment of the present invention, step S511 includes:

[0068] Step S5111, constructing a plurality of the reinforcement piles in the stratum where the reinforcement position is located to form a plurality of the pile rows on both sides of the gas pipeline perpendicular to the actual extension direction; wherein the plurality of pile rows are arranged in sequence along a direction perpendicular to the actual extension direction.

[0069] Furthermore, if Figure 4 As shown, by constructing multiple rows of piles on both sides of the gas pipeline perpendicular to the actual extension direction, and arranging multiple rows of piles in sequence along the direction perpendicular to the actual extension direction, the stratum can be further reinforced, and the stability of the stratum can be more effectively enhanced, thereby providing more stable support for the gas pipeline and better protection effect.

[0070] In one embodiment of the present invention, the bottom of each reinforcement pile extends at least 0.5 m below the gas pipeline.

[0071] Specifically, the bottom of the reinforcement pile 511 needs to extend at least 0.5 m below the gas pipeline 10 to ensure that it can provide relatively stable support for the gas pipeline 10 and provide higher reliability for protecting the gas pipeline 10.

[0072] In one embodiment of the present invention, step S600 includes:

[0073] Step S610, constructing support columns in the protection zone;

[0074] Step S620: Apply a cover plate on the top of the support column to form the protection structure.

[0075] Specifically, if Figure 3As shown, multiple support columns are installed on both sides of the gas pipeline 10 in the protection zone 30, which are perpendicular to the actual extension direction. The multiple support columns on either side are arranged in sequence along the actual extension direction of the gas pipeline 10. The cover plate 62 is extended along the actual extension direction, and the bottom of the cover plate 62 is supported on the top of the support column. The cover plate 62 can provide shielding for the gas pipeline 10, thereby effectively providing protection for the gas pipeline 10.

[0076] In one embodiment of the present invention, after step S600, the method further includes:

[0077] Step C100: vacuum preloading the stratum in the construction area.

[0078] Specifically, vacuum preloading can effectively improve the bearing capacity of the foundation. By vacuum preloading the ground in construction area 100, pore water in the ground can be drained, thereby increasing the density and strength of the ground in construction area 100. This helps ensure the stability of the ground during construction and use of the gas pipeline 10, reduces pipeline displacement or damage caused by insufficient ground bearing capacity, and better protects the gas pipeline 10.

[0079] In one embodiment of the present invention, after step S600, the method further includes:

[0080] Step D100: burying a vibration sensor and a displacement sensor in the stratum where the reinforcement position is located.

[0081] Specifically, the vibration sensor and displacement sensor can monitor the vibration and displacement of the ground in real time. If abnormal vibration or displacement is detected, construction personnel or maintenance personnel can take appropriate measures based on the monitored data to prevent damage to the gas pipeline 10 due to external forces or ground changes.

[0082] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A method for protecting a gas pipeline, characterized in that: The gas pipeline protection method is used for construction where a road surface crosses a gas pipeline, and the method comprises: Arrange multiple detection points at intervals along the designed extension direction of the gas pipeline in the construction area of the road surface; At each of the exploration points, a pilot pit is formed by excavating the ground downward along a preset path until the pilot pit reveals the gas pipeline, and the actual position of the gas pipeline in each of the pilot pits is determined; wherein the horizontal extension direction of the preset path is perpendicular to the designed extension direction; determining the actual extension direction of the gas pipeline according to the multiple actual positions, and demarcating a protection zone extending along the actual extension direction within the construction area; Determining a reinforcement position within the protected area using an intersection of the road surface and the protected area as a reference point; constructing a reinforcement structure in the ground layer where the reinforcement position is located; A protective structure is constructed within the protected area.

2. The gas pipeline protection method according to claim 1, characterized in that: Before the step of distributing a plurality of detection points at intervals along the designed extension direction of the gas pipeline in the construction area of the road surface, the method further includes: Determine the preset number of the detection points according to the designed length of the gas pipeline in the construction area and the preset distance between two adjacent detection points; wherein the preset number is at least three; The step of setting a plurality of detection points at intervals along the designed extension direction of the gas pipeline in the construction area of the road surface comprises: The preset number of detection points are evenly arranged in the construction area of the road surface along the designed extension direction of the gas pipeline.

3. The gas pipeline protection method according to claim 2, characterized in that: Before the step of determining the preset number of detection points according to the designed length of the gas pipeline in the construction area and the preset distance between two adjacent detection points, the method further includes: The preset distance is determined according to the design curvature of the gas pipeline.

4. The gas pipeline protection method according to claim 1, characterized in that: The step of applying a reinforcement structure to the stratum where the reinforcement position is located comprises: A plurality of reinforcement piles are installed in the stratum where the reinforcement position is located to form the reinforcement structure.

5. The gas pipeline protection method according to claim 4, characterized in that: The step of placing a plurality of reinforcement piles in the stratum at the reinforcement position comprises: A plurality of the reinforcement piles are installed in the stratum where the reinforcement position is located to form pile rows on both sides of the gas pipeline perpendicular to the actual extension direction; wherein each pile row includes a plurality of the reinforcement piles arranged in sequence along the actual extension direction.

6. The gas pipeline protection method according to claim 5, characterized in that: The step of constructing a plurality of reinforcement piles in the stratum where the reinforcement position is located to form pile rows on both sides of the gas pipeline perpendicular to the actual extension direction includes: A plurality of the reinforcement piles are constructed in the stratum where the reinforcement position is located to form a plurality of the pile rows on both sides of the gas pipeline perpendicular to the actual extension direction; wherein the plurality of the pile rows are arranged in sequence along a direction perpendicular to the actual extension direction.

7. The gas pipeline protection method according to claim 4, characterized in that: The bottom of each reinforcement pile extends at least 0.5m below the gas pipeline.

8. The gas pipeline protection method according to any one of claims 1 to 7, characterized in that: The step of constructing a protective structure in the protected area comprises: Constructing support columns in the protected area; A cover plate is applied on the top of the support column to form the protection structure.

9. The gas pipeline protection method according to any one of claims 1 to 7, characterized in that: After the step of applying the protective structure in the reinforcement area, the method further comprises: The ground in the construction area is vacuum preloaded.

10. The gas pipeline protection method according to any one of claims 1 to 7, characterized in that: After the step of applying the protective structure in the reinforcement area, the method further comprises: A vibration sensor and a displacement sensor are buried in the stratum where the reinforcement position is located.

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