Structure for arranging pipeline and supporting plate between outer wall crack of two basements

Abstract

The utility model relates to a structure for arranging a pipeline and a supporting plate between cracks of two basement outer walls. The structure comprises the two adjacent basement outer walls which are arranged in a spaced mode. Steel bars of the supporting plate are planted on the basement outer wall on one side; the pipeline foundation is arranged on the supporting plate; the pipeline is arranged on the pipeline foundation; and the supporting plate auxiliary support is arranged on the basement outer wall on the other side and is in butt joint with the supporting plate. According to the utility model, the mutual problems that the pipeline foundation is unstable, the pipe interface is cracked and leaks water and the ground sinks and cracks are caused due to the fact that the pipeline is buried in the crack and the later-stage backfill soil is subjected to differential settlement, and once an accident occurs, the repair workload is large, the time and the labor are wasted, the investment is high and the expected target is difficult to achieve can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of pipeline construction, in particular to a structure for arranging pipelines and supporting plates between the gaps of two basement outer walls. Background Art

[0002] With the rapid development of underground space development, it is very common for underground buildings to be fully built within the land red line and for two basements to be built next to each other. Large-scale basements pose great difficulties for the laying of outdoor buried pipes within the plot. For gravity flow drainage pipes that have slope requirements, change in burial depth from shallow to deep, and cannot bend upward, a thicker covering soil is required above the basement top plate as its burial layer. The commonly used technologies and existing problems in current projects are as follows:

[0003] Overall lowering method: The top plate of the outdoor part of the basement is lowered as a whole, and the thickness of the soil covering it is increased to meet the requirements for pipe burial. Its disadvantages are: 1) If the top plate is lowered but the bottom plate is not, the net height of the basement will be reduced, affecting the use function; 2) If both the top plate and the bottom plate are lowered, the burial depth of the basement will be increased, which is costly and uneconomical. For gravity flow drainage main pipes, considering the slope and the intersection of the two pipes, the required soil covering thickness is greater, and the disadvantages are more prominent.

[0004] Partial groove method: The top plate of the outdoor part of the basement is not lowered, and a pipe groove is partially left on the top plate to meet the requirements of the thickness of the buried pipe cover. Its disadvantages are: it affects the net height of the indoor space below the pipe groove; the top plate of the basement where the pipe groove is set needs to be thickened and strengthened, the structure is complex, and the cost is high.

[0005] Moreover, the backfill soil between the outer walls of the two basements is often difficult to compact, and uneven soil settlement will occur after the project is completed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a structure for arranging pipes and supporting plates between the outer walls of two basements, so as to prevent the burying of pipes in the gaps. The uneven settlement of the backfill soil in the later stage will lead to the instability of the pipe foundation, cracking and leakage of pipe joints, and ground subsidence and cracks. Once an accident occurs, the repair work is large, time-consuming and labor-intensive, and the investment is high, and it is difficult to achieve the expected goals. When two basements are built adjacent to each other, it is beneficial to avoid the contradiction between the development of underground space and the laying of gravity-flow buried pipes above, while ensuring the economy and feasibility of the design and construction plan and the safety and durability of the use of pipes.

[0007] In order to solve the above problems, a structure is adopted in which pipes and support plates are arranged between the gaps of the outer walls of two basements, which includes:

[0008] two bays of adjacent basement exterior walls;

[0009] The support plate has reinforcement embedded in one side of the basement exterior wall;

[0010] A pipe foundation, which is arranged on a support plate;

[0011] a pipeline, which is arranged on a pipeline foundation;

[0012] The pallet auxiliary support is arranged on the outer wall of the basement on the other side and butts against the pallet.

[0013] As a further improvement of the utility model, the length of the support plate embedded in the basement outer wall is not less than 1 / 2L, L is the thickness of the basement outer wall, and the elevation of each embedded reinforcement is calculated and positioned one by one according to the pipeline slope i.

[0014] As a further improvement of the utility model, the support plate is connected to the pipeline in full length and maintains a consistent slope.

[0015] As a further improvement of the utility model, the pipeline base is provided with an arc-shaped cross-section groove which fits the outer side of the pipeline.

[0016] As a further improvement of the present invention, the bottom of the support plate is inclined.

[0017] As a further improvement of the utility model, an inspection well is provided at the gap between the outer walls of adjacent basements where the pipeline enters and exits two intervals, and the bottom of the downstream pipe at the inspection well is 0.15-0.30 meters lower than the bottom of the upstream pipe.

[0018] As a further improvement of the utility model, an anchor rod is arranged at the end of the support plate, an anchor bar is arranged at the upper end of the anchor rod, and the upper end of the anchor bar is anchored in the outer wall of the basement.

[0019] By adopting such a structure, the stability of the cantilever structure support plate can be improved, and its ends can be prevented from breaking due to excessive bending moments caused by the complex stress environment when bearing the pipe load during the settlement of the basement.

[0020] The utility model utilizes the feature that the buried depth of the pipes between the gaps of the outer walls of the basement is not limited to lay gravity flow rainwater and sewage trunk pipes. It does not affect the net height of the basement, saves investment, and has a simple structure. The utility model sets a reinforced concrete pipe support plate that is the same length as the gap, firmly connects the support plate to the basement on one side through the reinforcement treatment, and sets a plain concrete support plate auxiliary support to fit the outer wall of the basement on the other side. The pipe and the foundation are placed on the support plate, and then backfilled with plain soil to fix it. The problem of pipe settlement damage caused by the uncompacted backfill soil between the gaps is avoided, and the stability and durability of the pipe can be ensured. The shortcomings of the prior art are overcome.

[0021] The utility model provides a safe, economical and feasible new method for laying underground pipelines in basements adjacent to construction, especially gravity flow trunk pipes with great burial depth, which can be used as a reference for similar projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment.

[0023] Figure 2 It is a schematic diagram of the enlarged local structure of the embodiment.

[0024] Figure 3 This is a schematic diagram of the pipeline well layout.

[0025] Figure 4 This is a schematic diagram of the structure after adding anchor rods and anchor reinforcement.

[0026] Figure numerals: 1. Basement exterior wall; 2. Support plate; 3. Pipeline foundation; 4. Pipeline; 5. Support plate auxiliary support; 6. Arc-section groove; 7. Inspection well; 8. Anchor rod; 9. Anchor reinforcement. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1-Figure 4 As shown, a structure for arranging pipes and supporting plates between the gaps of two basement exterior walls comprises:

[0030] Two adjacent basement exterior walls 1;

[0031] A support plate 2, with reinforcement embedded on one side of the basement outer wall 1;

[0032] A pipeline foundation 3, which is arranged on the support plate 2;

[0033] A pipeline 4, which is arranged on the pipeline foundation 3;

[0034] The pallet auxiliary support 5 is arranged on the basement outer wall 1 on the other side and butts against the pallet 2 .

[0035] In this embodiment, the length of the anchor bars of the support plate 2 implanted into the basement outer wall 1 is not less than 1 / 2L, where L is the thickness of the basement outer wall 1, and the elevation of each anchor bar is calculated and positioned one by one according to the pipeline slope i.

[0036] In this embodiment, the support plate 2 and the pipeline 4 are continuous and maintain a consistent slope.

[0037] In this embodiment, an arc-shaped cross-section groove 6 is provided on the pipeline foundation 3 , which fits the outer side of the pipeline 4 .

[0038] In this embodiment, the bottom of the support plate 2 is inclined.

[0039] In this embodiment, an inspection well 7 is provided at the gap between the two adjacent basement outer walls 1 where the pipeline 4 enters and exits, and the downstream pipe bottom at the inspection well 7 is 0.15-0.30 meters lower than the upstream pipe bottom.

[0040] In this embodiment, an anchor rod 8 is provided at the end of the support plate 2 , an anchor bar 9 is provided at the upper end of the anchor rod 8 , and the upper end of the anchor bar 9 is anchored in the outer wall 1 of the basement.

[0041] Such a structure can improve the stability of the cantilever structure support plate 2 and prevent its end from being broken due to excessive bending moment caused by complex stress environment when bearing pipeline load during the settlement of the basement.

[0042] Example 2

[0043] Overall idea: Make full use of the unlimited buried depth of pipes between the basement outer walls to lay gravity drainage trunk pipes. This is to solve the problem of increased soil cover on the basement outdoor roof and excessive lowering of the basement roof due to the slope requirements of the gravity drainage trunk pipes; at the same time, considering the construction defects between the two walls, in order to ensure the stability and durability of the pipes, a pipe support plate that is firmly connected to the basement is specially set.

[0044] Technical key points: To ensure the stability of the pipe pallet itself and its reliable connection with the basement outer wall, full consideration should be given to the deadweight of the pipe above the pallet, the weight of full water, the pipe foundation, backfill soil, and all the loads of pedestrians or vehicles on the upper part; the width of the pallet must meet the requirements of pipeline stability; after the pallet is rebar-embedded, effective waterproof reinforcement measures should be taken for the damaged waterproof parts of the basement outer wall; the pallet should be the same length as the pipe buried in the gap; the pallet should be sloped according to the slope and direction of the gravity flow drainage pipe; inspection wells should be set at the entrance and exit of the gravity flow drainage pipe, and the bottom of the downstream pipe at the inspection well should be 0.15~0.30 meters lower than the bottom of the upstream pipe to eliminate possible settlement that may cause the drainage pipe to slope backward.

[0045] The construction process of this technical solution is as follows: After the construction of the two adjacent basements is completed, backfill area ① and tamp (H1=H-1.0-H2, H2=C-C2) → plant reinforcement on the basement outer wall 1, and the implantation length is not less than 1 / 2 L (the thickness of the basement outer wall 1). The elevation of each rebar planting is calculated and positioned one by one according to the pipeline slope i → Reinforce the damaged parts of the basement outer wall → Construct reinforced concrete pipe support plates, the support plates are the same length as the pipeline, the width is not less than the outer diameter of the pipeline D+0.7m, the root thickness W1 is calculated according to the support load, the end thickness W2 is not less than 1 / 2W1, and the longitudinal slope of the plate surface is consistent with the slope of the pipeline → Backfill area ② and tamp → Construct concrete auxiliary supports, and the top of the auxiliary supports is in contact with the outer wall of the basement 2 to enhance the stability of the support plate → Construct pipeline foundations, and the foundation width W3 is not less than the outer diameter of the pipeline D+0.4m → Construct pipelines and inspection wells (if any) → Backfill area ③ and tamp → Pave the outdoor floor.

[0046] The utility model utilizes the feature that the buried depth of the pipes between the gaps of the outer walls of the basement is not limited to lay gravity flow rainwater and sewage trunk pipes. It does not affect the net height of the basement, saves investment, and has a simple structure. The utility model sets a reinforced concrete pipe support plate that is the same length as the gap, firmly connects the support plate to the basement on one side through the reinforcement treatment, and sets a plain concrete support plate auxiliary support to fit the outer wall of the basement on the other side. The pipe and the foundation are placed on the support plate, and then backfilled with plain soil to fix it. The problem of pipe settlement damage caused by the uncompacted backfill soil between the gaps is avoided, and the stability and durability of the pipe can be ensured. The shortcomings of the prior art are overcome.

[0047] Cover thickness: the vertical distance from the top of a buried pipeline or the top plate of an underground building to the ground surface.

[0048] Burial depth: The vertical distance from the bottom of an underground pipeline or the bottom of an underground building's floor to the ground surface.

[0049] Gravity flow: refers to the flow of water in a pipe from a high water level to a low water level relying on its own gravity.

[0050] Depth of frozen soil: The thickness of the frozen soil layer. Soil temperature is lower than 0℃, causing part or most of the water in the soil to freeze into ice. This is called frozen soil.

[0051] The utility model provides a safe, economical and feasible new method for laying underground pipelines in basements adjacent to construction, especially gravity flow trunk pipes with great burial depth, which can be used as a reference for similar projects.

[0052] The utility model utilizes the feature that the buried depth of the pipes between the gaps of the outer walls of the basement is not limited to lay gravity flow rainwater and sewage trunk pipes. It does not affect the net height of the basement, saves investment, and has a simple structure. The utility model sets a reinforced concrete pipe support plate that is the same length as the gap, firmly connects the support plate to the basement on one side through the reinforcement treatment, and sets a plain concrete support plate auxiliary support to fit the outer wall of the basement on the other side. The pipe and the foundation are placed on the support plate, and then backfilled with plain soil to fix it. The problem of pipe settlement damage caused by the uncompacted backfill soil between the gaps is avoided, and the stability and durability of the pipe can be ensured. The shortcomings of the prior art are overcome.

[0053] The utility model provides a safe, economical and feasible new method for laying underground pipelines in basements adjacent to construction, especially gravity flow trunk pipes with great burial depth, which can be used as a reference for similar projects.

[0054] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For technicians in the technical field to which the present invention belongs, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A structure in which pipes and support plates are arranged between the outer walls of two basements, characterized in that include: Two adjacent basement exterior walls (1); A support plate (2) having reinforcement embedded in one side of the basement outer wall (1); A pipeline foundation (3) is arranged on the support plate (2); A pipeline (4) arranged on the pipeline foundation (3); The support plate auxiliary support (5) is arranged on the basement outer wall (1) on the other side and butts against the support plate (2).

2. The structure of arranging pipes and supporting plates between the gaps of two basement outer walls according to claim 1 is characterized in that The length of the reinforcement bars of the support plate (2) embedded in the basement outer wall (1) is not less than 1 / 2L, where L is the thickness of the basement outer wall (1), and the elevation of each reinforcement bar is calculated and positioned one by one according to the pipeline slope i.

3. The structure of arranging pipes and supporting plates between the gaps of two basement exterior walls according to claim 1 is characterized in that The support plate (2) and the pipeline (4) are continuous in length and maintain a consistent slope.

4. The structure of arranging pipes and supporting plates between the gaps of two basement exterior walls according to claim 1 is characterized in that The pipeline foundation (3) is provided with an arc-shaped cross-section groove (6) which fits the outer side of the pipeline (4).

5. The structure of arranging pipes and supporting plates between the gaps of two basement exterior walls according to claim 1 is characterized in that The bottom of the supporting plate (2) is inclined.

6. The structure of arranging pipes and supporting plates between the gaps of two basement exterior walls according to claim 1 is characterized in that An inspection well (7) is provided at the gap between the two adjacent basement outer walls (1) where the pipeline (4) enters and exits, and the downstream pipe bottom at the inspection well (7) is 0.15 to 0.30 meters lower than the upstream pipe bottom.

7. The structure of arranging pipes and supporting plates between the gaps of two basement exterior walls according to claim 1 is characterized in that An anchor rod (8) is arranged at the end of the support plate (2), an anchor bar (9) is arranged at the upper end of the anchor rod (8), and the upper end of the anchor bar (9) is anchored in the outer wall (1) of the basement.

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