A settlement compensation protection structure for underground pipelines and construction method thereof

Abstract

The present invention discloses a settlement compensation protection structure for underground pipelines and a construction method thereof, and relates to the technical field of underground pipelines. The protection structure comprises underground pipelines, concrete cushion layers, concrete pillow foundations, pipeline clamps, automatic settlement compensation lifting columns, concrete side plates and concrete top plates, the automatic settlement compensation lifting columns are arranged below the pipeline clamps, the concrete side plates are fixedly connected to the concrete top plates, geobags are laid on the outer sides of the concrete side plates, slots are reserved on the concrete top plates, protective pipes are vertically inserted into the slots, protective wells are cast around the protective pipes, and pipeline settlement measuring rods are inserted into the protective pipes, and one end of the pipeline settlement measuring rods is in contact with the clamps. The purpose of the present invention is to ensure the safety of underground pipelines under the condition of being disturbed by adjacent foundation pit excavation and adjacent soil bodies, and to have the effect of timely compensating for pipeline settlement and effectively controlling pipeline deformation.

Description

Technical Field

[0001] The invention relates to the technical field of underground pipelines, and in particular to a settlement compensation protection structure for underground pipelines and a construction method thereof. Background Art

[0002] In recent years, with the rapid development of urbanization in China, urban buildings have become increasingly dense, and the corresponding large-scale underground space excavation has become an inevitable trend, such as multi-story underground parking lots of high-rise buildings, subway stations, underground commercial streets, etc. However, the pipeline network in the urban underground space is dense, which means that the construction of the foundation pit will inevitably be close to the underground pipelines, thus causing a certain impact on the safety of the underground pipelines.

[0003] For example, when building a subway station on an urban road, the foundation pit needs to be dewatered, and during the excavation of the foundation pit, the displacement state and stress state of the surrounding soil change, which often causes the ground and foundation to settle. The foundation settlement force is so great that the adjacent underground pipelines have to move with the soil; when the deformation of the underground pipeline cannot meet the displacement of the settlement, it is easy to cause the pipeline to break. In view of the above shortcomings, it is necessary to design a settlement compensation protection structure and construction method for underground pipelines that can effectively solve the problem that the nearby pipelines are difficult to protect due to settlement damage during the existing foundation pit construction process. Summary of the invention

[0004] The purpose of the present invention is to provide a settlement compensation protection structure for underground pipelines and a construction method thereof, so as to solve the problem that the nearby pipelines are difficult to protect due to settlement damage during the existing foundation pit construction process.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A settlement compensation protection structure for an underground pipeline, the protection structure comprising an underground pipeline, a concrete cushion layer, a concrete pillow base, a pipeline clamp, an automatic settlement compensation lifting column, a concrete side plate and a concrete top plate;

[0007] The pipeline clamps are symmetrically arranged on the periphery of the underground pipeline, and the pipeline clamps are connected by bolts, the automatic settlement compensation lifting column is arranged below the pipeline clamp, and the automatic settlement compensation lifting column is connected with a lifting column control wire, the concrete side plates are arranged on both sides of the underground pipeline, the concrete top plate is arranged above the underground pipeline, and the concrete side plates are fixedly connected to the concrete top plate, the outer side of the concrete side plates is paved with geobags, and slots are reserved on the concrete top plate;

[0008] The underground pipeline is divided into several sections, and two adjacent sections of the underground pipeline are connected by pipeline joints. A clamp is provided on the periphery of the pipeline joint. A protective pipe is vertically inserted into the slot. A protection well is cast around the protective pipe. A pipeline settlement measuring rod is inserted into the protective pipe, and one end of the pipeline settlement measuring rod is in contact with the clamp.

[0009] As a further solution of the present invention: the automatic settlement compensating lifting column and the pipeline clamp are connected by a pipe support, the pipe support is an arc-shaped structure and is arranged below the pipeline clamp, the pipe support is fixedly installed on the automatic settlement compensating lifting column, and is lifted by the automatic settlement compensating lifting column and clamped with the pipeline clamp.

[0010] As a further solution of the present invention: a lifting column bottom plate is installed on the concrete cushion layer, and the automatic settlement compensation lifting column is fixedly installed on the lifting column bottom plate.

[0011] As a further solution of the present invention: the automatic settlement compensating lifting column and the pipeline clamp are located on the same vertical line, and are arranged just below the middle section of each underground pipeline section.

[0012] As a further solution of the present invention: the pipeline clamp and the bottom plate of the lifting column are both steel components, and the concrete side plates and the concrete top plate are both prefabricated engineering parts.

[0013] As a further solution of the present invention: a limiting convex strip is fixedly provided on the lower surface of the concrete top plate, and the limiting convex strip is arranged between the concrete side plates.

[0014] As a further solution of the present invention: bolt holes are reserved on the concrete side plates and the concrete top plates, and the concrete side plates and the concrete top plates are connected by steel plates and bolts.

[0015] As a further solution of the present invention: the concrete side plate and the concrete pillow base are connected by angle steel and bolts.

[0016] As a further solution of the present invention: a protective cover is movably connected to the top of the protection well.

[0017] A construction method for a settlement compensation protection structure for an underground pipeline, the construction method comprising the following steps:

[0018] Step 1: Determine the location of the original underground pipeline, and dig the first trench along the length of the underground pipeline until most of the underground pipeline is exposed, and at the same time make the height of the bottom of the first trench flush with the top quarter of the diameter of the underground pipeline;

[0019] Step 2: Compact the bottom of the first excavated trench, and manually excavate small foundation pits along both sides of the trench for each section of the underground pipeline. The length and excavation depth of the small foundation pit are related to the diameter of the underground pipeline;

[0020] Step 3: Compact the bottom of the small foundation pit and use the small foundation pit soil mold to pour the concrete cushion layer

[0021] Step 4: Set up a wooden board casting mold, and use the mold composed of the small foundation pit wall and the wooden board to cast the concrete pillow foundation;

[0022] Step 5: Install the pipeline clamp with bolts on the underground pipeline above the concrete pillow foundation, and then install the automatic settlement compensation lifting column;

[0023] Step 6: Continue to dig a second trench between the two small foundation pits, and make the bottom of the second trench flush with the bottom of the small foundation pit, and use the trench soil mold to cast the concrete cushion layer;

[0024] Step 7: After arranging the clamps at the pipeline joints, install the prefabricated concrete side panels on the concrete cushion layer, and then install the prefabricated concrete top panels on the concrete side panels;

[0025] Step 8: Cover the sides of the trench and the space between the concrete side panels with geobags;

[0026] Step 9: After inserting the protective tube into the slot, backfill the original soil above the concrete top plate and geobags to the roadbed surface elevation;

[0027] Step 10: Cast a protective well around the protective pipe, and then insert the pipeline settlement measuring rod into the protective pipe until it touches the clamp.

[0028] Beneficial effects:

[0029] 1. A settlement compensation protection structure for underground pipelines and a construction method thereof proposed in the present invention form a stable concrete support structure around the underground pipelines. The concrete top plate is used to bear the load from the soil above and transfer the load to the concrete cushion layer through the concrete side plates, thereby preventing the underground pipelines from being subjected to direct loads. The automatic settlement compensation lifting columns installed on the concrete pillow support the underground pipelines. After the settlement of the underground pipelines is monitored by the pipeline settlement measuring rods, the underground pipelines are lifted by controlling the automatic settlement compensation lifting columns, thereby compensating for the settlement of the underground pipelines in time, avoiding plastic deformation of the underground pipelines for a long time after settlement and causing displacement damage, so that the settlement deformation of the underground pipelines is timely and effectively controlled.

[0030] 2. The settlement compensation protection structure for underground pipelines and the construction method thereof proposed in the present invention can effectively control and protect the settlement displacement of underground pipelines near deep foundation pit construction. The protection structure is easy to construct and can facilitate the removal of the concrete top plate after the settlement of the underground pipelines is stabilized at the end of construction, so as to take out the automatic settlement compensation lifting column for multiple use. After disassembly, the groove formed by the concrete side plate and the concrete cushion layer is backfilled with medium-coarse sand or original soil, and after compaction, the concrete top plate is covered and then backfilled with original soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the longitudinal section structure of the construction state of step 5 in the present invention;

[0033] Figure 3 It is a schematic diagram of the longitudinal section structure of the present invention;

[0034] Figure 4 It is a schematic diagram of the connection structure between the concrete pillow foundation and the concrete side plate in the present invention;

[0035] Figure 5 It is a schematic diagram of the connection structure between the concrete side plate and the concrete top plate in the present invention;

[0036] Figure 6 It is a structural schematic diagram of the slot hole in the present invention;

[0037] In the figure: 1. Underground pipeline; 2. Bottom of the first excavation trench; 3. Concrete cushion layer; 4. Concrete pillow base; 5. Pipeline clamp; 6. Bolts; 7. Bottom plate of lifting column; 8. Automatic settlement compensation lifting column; 9. Pipe support; 10. Concrete side plate; 11. Concrete top plate; 12. Limiting convex strip; 13. Geobag; 14. Original soil; 15. Roadbed surface; 16. Small foundation pit; 17. Pipeline joint; 18. Bottom of the second excavation trench; 19. Lifting column control wire; 20. Protection well; 21. Protection pipe; 22. Pipeline settlement measuring rod; 23. Clamp; 24. Protection cover; 25. Angle steel; 26. Slot hole; 27. Steel plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0039] The present invention provides the following technical solutions:

[0040] like Figure 1-6 As shown, a settlement compensation protection structure for underground pipelines, the protection structure includes an underground pipeline 1, a concrete cushion layer 3, a concrete pillow base 4, a pipeline clamp 5, an automatic settlement compensation lifting column 8, a concrete side plate 10 and a concrete top plate 11;

[0041] The pipeline clamps 5 are symmetrically arranged on the periphery of the underground pipeline 1, and the pipeline clamps 5 are connected by bolts 6. The automatic settlement compensation lifting column 8 is arranged below the pipeline clamps 5, and the automatic settlement compensation lifting column 8 is connected with a lifting column control wire 19, and the lifting column control wire 19 can be externally controlled to control the lifting of the automatic settlement compensation lifting column 8. The concrete side panels 10 are arranged on both sides of the underground pipeline 1. The concrete side panels 10 are placed close to the concrete pillow 4 and installed on the concrete cushion layer 3. The concrete top panel 11 is arranged above the underground pipeline 1, and the concrete side panels 10 are fixedly connected to the concrete top panel 11. Geobags 13 are laid on the outer side of the concrete side panels 10, and slots 26 are reserved on the concrete top panel 11. The laid geobags 13 serve as a transition layer between the slope soil and the concrete side panels 10, allowing the side soil to have a certain radial deformation to avoid the soil directly squeezing the concrete side panels 10 and causing the entire concrete support structure to produce horizontal displacement, so that the underground pipeline 1 is effectively protected;

[0042] The underground pipeline 1 is divided into several sections, and two adjacent sections of the underground pipeline 1 are connected by a pipeline joint 17. A clamp 23 is provided on the periphery of the pipeline joint 17. A protective pipe 21 is vertically inserted into the slot 26. The protective pipe 21 isolates the pipeline settlement measuring rod 22 from the original soil 14. A protective well 20 is cast around the protective pipe 21, and a pipeline settlement measuring rod 22 is inserted into the protective pipe 21. One end of the pipeline settlement measuring rod 22 is in contact with the clamp 23. The protective well 20 and the pipeline settlement measuring rod 22 constitute the pipeline settlement observation point of the present invention. The pipeline settlement measuring rod 22 is arranged at the pipeline joint 17. The lower end is surrounded by a clamp 23 to connect the underground pipeline 1 to the pipeline joint 17, so as to measure the real-time settlement value at the pipeline joint 17, and the upper end is extended into the protection well 20. The settlement value of the underground pipeline 1 can be intuitively understood through the length of the pipeline settlement measuring rod 22 extended into the protection well 20. At the same time, a pipeline settlement observation point is set in each section of the underground pipeline 1. Since the settlement values ​​of the underground pipeline 1 in different sections may be different, the automatic settlement compensation lifting column 8 on the underground pipeline 1 in different sections can be controlled by the control device to rise and fall, so as to meet the settlement compensation process of different underground pipelines 1.

[0043] Through the arrangement of the above structure, a stable concrete support structure is formed around the underground pipeline 1. The concrete top plate 11 is used to bear the load from the soil above, and transfer the load to the concrete cushion layer 3 through the concrete side plates 10, thereby preventing the underground pipeline 1 from being subjected to direct load. The automatic settlement compensation lifting column 8 installed on the concrete pillow base 4 supports the underground pipeline 1. After the pipeline settlement measuring rod 22 monitors the settlement of the underground pipeline 1, the underground pipeline 1 is lifted by controlling the automatic settlement compensation lifting column 8, so as to compensate for the settlement of the underground pipeline 1 in time, avoid plastic deformation of the underground pipeline 1 for a long time after the settlement, and cause displacement damage, so that the settlement deformation of the underground pipeline 1 is timely and effectively controlled.

[0044] The automatic settlement compensation lifting column 8 and the pipeline clamp 5 are connected by a pipe support 9. The pipe support 9 is an arc-shaped structure and is arranged below the pipeline clamp 5. The pipe support 9 is fixedly installed on the automatic settlement compensation lifting column 8. The automatic settlement compensation lifting column 8 is lifted and clamped with the pipeline clamp 5, which can further achieve the purpose of settlement compensation and supporting the underground pipeline 1. At the same time, it can avoid the contact area between the automatic settlement compensation lifting column 8 and the underground pipeline 1 being too small, which may cause the underground pipeline 1 to be damaged, so that the supporting structure of the underground pipeline 1 is more stable.

[0045] A lifting column bottom plate 7 is installed on the concrete cushion layer 3 , and an automatic settlement compensating lifting column 8 is fixedly installed on the lifting column bottom plate 7 . The lifting column bottom plate 7 is convenient for supporting the automatic settlement compensating lifting column 8 .

[0046] The automatic settlement compensating lifting column 8 and the pipeline clamp 5 are located on the same vertical line and are arranged directly below the middle section of each section of the underground pipeline 1, so that the supporting force of the automatic settlement compensating lifting column 8 on the underground pipeline 1 is vertically upward, preventing the underground pipeline 1 from being subjected to lateral supporting force and causing radial flexural deformation, thereby better supporting and protecting the underground pipeline 1.

[0047] The pipeline clamp 5 and the lifting column base plate 7 are both steel components, and the concrete side plates 10 and the concrete top plate 11 are both prefabricated parts. The steel components and the prefabricated concrete parts have the characteristics of high structural strength and long service life, so that the underground pipeline 1 is better supported and protected.

[0048] A limiting convex strip 12 is fixedly provided on the lower surface of the concrete top plate 11, and the limiting convex strip 12 is arranged between the concrete side plates 10. In this arrangement, the top end surface of the concrete side plate 10 contacts the limiting convex strip 12 under the squeezing of the geobag 13, and is not easy to tilt inward, making the entire concrete support structure more stable.

[0049] Bolt holes are reserved on the concrete side plate 10 and the concrete top plate 11 , and the concrete side plate 10 and the concrete top plate 11 are connected by a steel plate 27 and bolts 6 .

[0050] The concrete side plate 10 and the concrete pillow base 4 are connected by angle steel 25 and bolts 6, so that the direct connection of the concrete precast panel can be convenient and quick. At the same time, through the connection between the concrete side plate 10 and the concrete top plate 11 and between the concrete side plate 10 and the concrete pillow base 4, a closed space for protecting the pipeline can be formed, which is beneficial to protecting the underground pipeline 1.

[0051] The top of the protection well 20 is movably connected with a protection cover 24 . The setting of the protection cover 24 can effectively protect the internal structure of the protection well 20 , and also facilitates the observation of the real-time settlement value at the pipeline joint 17 measured by the pipeline settlement measuring rod 22 .

[0052] A construction method for a settlement compensation protection structure for an underground pipeline, the construction method comprising the following steps:

[0053] Step 1: Determine the location of the original underground pipeline 1, and perform the first trench excavation along the length direction of the underground pipeline 1 until most of the underground pipeline 1 is exposed, and at the same time, make the height of the bottom 2 of the first trench excavation flush with the upper quarter of the pipe diameter of the bottom of the underground pipeline 1;

[0054] Step 2: compact the bottom 2 of the first excavated trench, and manually excavate a small foundation pit 16 along both sides of the trench for each section of the underground pipeline 1. The length and excavation depth of the small foundation pit 16 are related to the diameter of the underground pipeline 1.

[0055] Step 3: Compact the bottom of the small foundation pit 16 and use the soil form of the small foundation pit 16 to cast the concrete cushion layer 3

[0056] Step 4: Set up a wooden board casting mold, and use the mold composed of the pit wall of the small foundation pit 16 and the wooden board to cast the concrete pillow foundation 4;

[0057] Step 5: Install the pipeline clamp 5 on the underground pipeline 1 above the concrete pillow 4 with bolts 6, and then install the automatic settlement compensation lifting column 8;

[0058] Step 6: Continue to dig a second trench between the two small foundation pits 16, and make the bottom 18 of the second trench flush with the bottom of the small foundation pit 16, and use the trench soil mold to cast the concrete cushion layer 3;

[0059] Step 7: After the clamp 23 is arranged at the pipeline joint 17, the prefabricated concrete side plate 10 is installed on the concrete cushion layer 3, and then the prefabricated concrete top plate 11 is installed on the concrete side plate 10;

[0060] Step 8: Cover the two sides of the trench and the space between the concrete side plates 10 with geobags 13;

[0061] Step 9: After inserting the protection tube 21 into the slot 26, backfill the original soil 14 above the concrete top plate 11 and the geobag 13 to the elevation of the roadbed surface 15;

[0062] Step 10: Cast a protection well 20 around the protection pipe 21 , and then insert a pipeline settlement measuring rod 22 into the protection pipe 21 until it touches the clamp 23 .

[0063] The present invention adopts the above method for construction. After the automatic settlement compensation lifting column 8 is installed and fixed, the remaining soil in the small foundation pit 16 is excavated, and the traditional method of excavating soil under the underground pipeline 1 and pouring the concrete cushion layer 3, which requires the use of a crane to lift the pipeline, is abandoned. The construction difficulty is greatly reduced and the normal use of the underground pipeline 1 during the construction process is not affected.

[0064] It is worth noting that in step nine, before backfilling the original soil 14, the gap between the protection pipe 21 and the slot 26 should be filled with compacted clay to prevent the soil from falling or rainwater from penetrating into the protection structure, causing inaccurate settlement values.

[0065] The present invention can effectively control and protect the settlement displacement of the underground pipeline 1 near the deep foundation pit construction. The protection structure is easy to construct, and after the settlement of the underground pipeline 1 is stabilized after the construction is completed, it is easy to disassemble the concrete top plate 11 so as to take out the automatic settlement compensation lifting column 8 for multiple use. After disassembly, the groove formed by the concrete side plate 10 and the concrete cushion layer 3 is backfilled with medium-coarse sand or original soil 14, and after compaction, the concrete top plate 11 is covered and then the original soil 14 is backfilled.

[0066] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A construction method for a settlement compensation protection structure for underground pipelines, characterized in that: The construction method includes the following steps: Step 1: Determine the location of the original underground pipeline (1), and perform a first trench excavation along the length direction of the underground pipeline (1) until most of the underground pipeline (1) is exposed, and at the same time, make the height of the bottom (2) of the first trench excavation flush with the top of the underground pipeline (1) at one quarter of the pipe diameter; Step 2: compacting the bottom of the first excavated trench (2), and manually excavating a small foundation pit (16) along both sides of the trench for each section of the underground pipeline (1), wherein the length and excavation depth of the small foundation pit (16) are related to the diameter of the underground pipeline (1); Step 3: Compact the bottom of the small foundation pit (16) and use the soil form of the small foundation pit (16) to cast the concrete cushion layer (3) Step 4: Setting up a wooden board casting mold, and using the mold formed by the pit wall of the small foundation pit (16) and the wooden board to cast the concrete pillow foundation (4); Step 5: Install the pipeline clamp (5) on the underground pipeline (1) above the concrete pillow base (4) with bolts (6), and then install the automatic settlement compensation lifting column (8); Step 6: Continue to dig a second trench between the two small foundation pits (16), and make the bottom (18) of the second trench flush with the bottom of the small foundation pit (16), and use the trench soil mold to cast the concrete cushion layer (3); Step 7: After the clamp (23) is arranged at the pipeline joint (17), the prefabricated concrete side plate (10) is installed on the concrete cushion layer (3), and then the prefabricated concrete top plate (11) is installed on the concrete side plate (10); Step 8: Cover the space between the two sides of the trench and the concrete side plates (10) with geobags (13); Step 9: After inserting the protection tube (21) into the slot hole (26), backfill the original soil (14) above the concrete top plate (11) and the geobag (13) to the elevation of the roadbed surface (15); Step 10: Cast a protective well (20) around the protective pipe (21), and then insert a pipeline settlement measuring rod (22) into the protective pipe (21) until it touches the clamp (23); A protection mechanism using the above construction method, wherein the protection structure comprises an underground pipeline (1), a concrete cushion layer (3), a concrete pillow base (4), a pipeline clamp (5), an automatic settlement compensation lifting column (8), a concrete side plate (10) and a concrete top plate (11); The pipeline clamps (5) are symmetrically arranged on the periphery of the underground pipeline (1), and the pipeline clamps (5) are connected by bolts (6); the automatic settlement compensation lifting column (8) is arranged below the pipeline clamps (5), and the automatic settlement compensation lifting column (8) is connected to a lifting column control wire (19); the concrete side panels (10) are arranged on both sides of the underground pipeline (1); the concrete top panel (11) is arranged above the underground pipeline (1), and the concrete side panels (10) are fixedly connected to the concrete top panel (11); a geobag (13) is laid on the outer side of the concrete side panel (10), and a slot (26) is reserved on the concrete top panel (11); The underground pipeline (1) is divided into a plurality of sections, and two adjacent sections of the underground pipeline (1) are connected via a pipeline joint (17). A clamp (23) is provided on the periphery of the pipeline joint (17). A protection pipe (21) is vertically inserted into the slot (26). A protection well (20) is cast around the protection pipe (21). A pipeline settlement measuring rod (22) is inserted into the protection pipe (21), and one end of the pipeline settlement measuring rod (22) is in contact with the clamp (23).

2. The construction method of a settlement compensation protection structure for underground pipelines according to claim 1, characterized in that: The automatic subsidence compensation lifting column (8) and the pipeline clamp (5) are connected via a pipe support (9); the pipe support (9) is an arc-shaped structure and is arranged below the pipeline clamp (5); the pipe support (9) is fixedly mounted on the automatic subsidence compensation lifting column (8) and is lifted by the automatic subsidence compensation lifting column (8) to clamp the pipeline clamp (5).

3. The construction method of a settlement compensation protection structure for underground pipelines according to claim 1, characterized in that: A lifting column bottom plate (7) is installed on the concrete cushion layer (3), and the automatic settlement compensation lifting column (8) is fixedly installed on the lifting column bottom plate (7).

4. The construction method of a settlement compensation protection structure for underground pipelines according to claim 1, characterized in that: The automatic settlement compensating lifting column (8) is located on the same vertical line as the pipeline clamp (5), and is arranged directly below the middle section of each section of the underground pipeline (1).

5. The construction method of the settlement compensation protection structure of underground pipelines according to claim 3 is characterized by: The pipeline clamp (5) and the lifting column bottom plate (7) are both steel components, and the concrete side plates (10) and the concrete top plate (11) are both prefabricated engineering parts.

6. The construction method of a settlement compensation protection structure for underground pipelines according to claim 1, characterized in that: A limiting convex strip (12) is fixedly provided on the lower surface of the concrete top plate (11), and the limiting convex strip (12) is arranged between the concrete side plates (10).

7. The construction method of the settlement compensation protection structure of underground pipelines according to claim 1, characterized in that: Bolt holes are reserved on the concrete side panels (10) and the concrete top panel (11), and the concrete side panels (10) and the concrete top panel (11) are connected via steel plates (27) and bolts (6).

8. The construction method of the settlement compensation protection structure of underground pipelines according to claim 7 is characterized by: The concrete side plate (10) and the concrete pillow base (4) are connected via angle steel (25) and bolts (6).

9. The construction method of a settlement compensation protection structure for underground pipelines according to claim 1, characterized in that: A protection cover (24) is movably connected to the top of the protection well (20).

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