Underground pipeline protection structure

Abstract

An underground pipeline protection structure comprises a prefabricated culvert platform, a first clamping groove is formed in one end of the prefabricated culvert platform, a first clamping protrusion is arranged at the other end of the prefabricated culvert platform, a containing groove is formed in the bottom wall of the prefabricated culvert platform, and mounting grooves are formed in the two sides of the containing groove; the prefabricated cover plate covers the prefabricated culvert platform, a first buffer spring is arranged between the prefabricated cover plate and the prefabricated culvert platform, a second clamping groove is formed in one end of the prefabricated cover plate, and a second clamping protrusion is arranged at the other end of the prefabricated cover plate; the first protection structure covers the underground pipeline and is provided with a first impermeable layer, a damping layer, a fixing plate and a plurality of first damping plates which are arranged on the fixing plate at intervals from bottom to top; the second protection structure covers the first protection structure and comprises a protection shell and a second impermeable layer which are arranged from bottom to top, a plurality of second buffer springs are arranged on the inner side of the protection shell and are arranged at the separation positions of the first damping plates, a plurality of third buffer springs are further arranged on the two sides of the protection shell, and the third buffer springs are arranged in the mounting grooves; and a soil layer is filled between the prefabricated cover plate and the prefabricated culvert platform.

Description

Technical Field

[0001] The present application relates to the technical field of underground pipelines, and in particular to an underground pipeline protection structure. Background Art

[0002] Underground pipelines are buried in the soil, and their upper parts inevitably intersect with various roads, subject to various overlying loads such as cars and other impacts. With the development of cities, the number of road reconstruction and expansion projects is increasing, which has a greater impact on the pipelines under the roads. In order to improve the ability to bear pressure and resist impact loads, underground pipelines need to be reinforced with protective structures during installation.

[0003] In the related art, for example, Chinese utility model patent CN215721232 U discloses an assembled underground pipeline protection structure, including a prefabricated culvert and a prefabricated cover plate matching the prefabricated culvert, the prefabricated cover plate is placed on the top of the prefabricated culvert, and the gas pipeline is placed inside the prefabricated culvert; it is characterized in that it includes a connecting plate for supporting coarse sand on the upper part of the gas pipeline and a support block for supporting the connecting plate, the support blocks are arranged on both sides of the gas pipeline and fixed on the side walls of the prefabricated culvert, the connecting plate is an arc-shaped structure, the two ends of the connecting plate are respectively connected to the support blocks on both sides and the center of the arc falls on the gas pipeline.

[0004] However, the above technical solution has the following shortcomings: 1. There is a lack of buffer and shock-absorbing devices, and the structure's ability to resist impact loads is insufficient; 2. The device lacks a longitudinal connection design, making it difficult to protect long-distance pipelines in a standardized assembly manner; 3. The underground pipelines are still exposed in the soil and are susceptible to sudden corrosion. Utility Model Content

[0005] The present application aims to provide an assembled underground pipeline structure, which can play a role in buffering, shock absorption and impact resistance, and at the same time can isolate the underground pipeline from the soil to prevent pipeline corrosion.

[0006] This application specifically adopts the following technical solutions:

[0007] An underground pipeline protection structure, comprising:

[0008] A prefabricated culvert, wherein one end of the prefabricated culvert is provided with a first clamping groove, and the other end is provided with a first clamping protrusion, and the inner bottom wall of the prefabricated culvert is provided with a receiving groove for placing an underground pipeline, and both sides of the receiving groove are respectively provided with installation grooves;

[0009] A prefabricated cover plate, wherein the prefabricated cover plate is disposed on the prefabricated culvert platform, a plurality of first buffer springs are disposed between the prefabricated cover plate and the prefabricated culvert platform, a second clamping groove is disposed at one end of the prefabricated cover plate, and a second clamping protrusion is disposed at the other end;

[0010] A first protective structure, the first protective structure is covered on the underground pipeline, and the first protective structure includes a first anti-seepage layer, a shock-absorbing layer, a fixing plate, and a plurality of first shock-absorbing plates arranged separately on the fixing plate from bottom to top; and

[0011] A second protective structure, the second protective structure is covered on the first protective structure, the second protective structure includes a protective shell and a second impermeable layer arranged from bottom to top, a plurality of second buffer springs are arranged inside the protective shell, the second buffer springs are arranged at the separation of the first damping plate, and a plurality of third buffer springs are also arranged on both sides of the protective shell, the third buffer springs are arranged in the mounting groove;

[0012] Wherein, several soil layers are filled between the prefabricated cover plate and the prefabricated culvert.

[0013] Furthermore, the first anti-seepage layer and the second anti-seepage layer are high-density polyethylene film layers, the shock-absorbing layer is a rubber layer, and the first shock-absorbing board is an EPS board.

[0014] Furthermore, through holes are respectively arranged on the side walls at both ends of the prefabricated culvert, and snap-in holes are correspondingly arranged on the side walls at both ends of the protective shell. The snap-in holes are strip-shaped holes, and snap-in rods are inserted through the through holes and the snap-in holes.

[0015] Furthermore, a second shock-absorbing plate and a third anti-seepage layer are arranged in the container from bottom to top.

[0016] Furthermore, the second shock-absorbing board is an EPS board, and the third anti-seepage layer is a high-density polyethylene film layer.

[0017] Furthermore, the prefabricated cover plate is covered with a fourth anti-seepage layer.

[0018] Furthermore, the fourth anti-seepage layer is a high-density polyethylene film layer.

[0019] Furthermore, a plurality of anchor piles are arranged on the outer bottom wall of the prefabricated culvert.

[0020] Furthermore, a foamed concrete layer and a muddy soil layer are filled from top to bottom between the prefabricated cover plate and the prefabricated culvert.

[0021] Beneficial effects of this application:

[0022] 1. In the present application, the underground pipeline is isolated from the soil layer by the first protective structure and the second protective structure, which can effectively buffer the soil layer, resist impact load, and protect the pipeline on the one hand, and effectively prevent the soil layer from corroding the pipeline, and at the same time prevent the liquid in the pipeline from seeping out and polluting the external soil to a certain extent;

[0023] 2. A first buffer spring is provided between the prefabricated cover plate and the prefabricated culvert platform in the present application, which can effectively offset the external impact load; when there are vehicles or other pressure and dynamic loads applied from above, the filled soil layer can gradually disperse the load, and at the same time, the second protective structure and the first protective structure further absorb and disperse the load, absorb and disperse the pressure and impact load transmitted to the central underground pipeline, and effectively reduce the pressure and impact of the overlying load on the underground pipeline;

[0024] 3. The prefabricated culvert and prefabricated cover plate described in this application are designed with matching snap-in grooves and snap-in protrusions to longitudinally connect adjacent section structures. The components are all prefabricated, and the standardized and modular assembly design makes the construction convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the combined structure of an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the first protection structure in the embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the second protection structure in the embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of a prefabricated cover plate in an embodiment of the present application;

[0029] Figure 5 This is a schematic diagram of the prefabricated culvert structure in the embodiment of the present application;

[0030] In the figure: 10 underground pipelines;

[0031] 100 prefabricated culvert, 101 first clamping groove, 102 first clamping protrusion, 103 containing groove, 1031 second shock absorbing plate, 1032 third anti-seepage layer, 104 installation groove, 105 outer support plate, 106 inner support plate, 107 through hole, 108 clamping rod;

[0032] 200 prefabricated cover plate, 201 second clamping groove, 202 second clamping protrusion, 203 first buffer spring;

[0033] 300 first protective structure, 301 first anti-seepage layer, 302 shock-absorbing layer, 303 fixing plate, 304 first shock-absorbing plate;

[0034] 400 second protective structure, 401 protective shell, 402 second anti-seepage layer, 403 second buffer spring, 404 buffer gasket, 405 third buffer spring, 406 clamping hole;

[0035] 500 anchor piles;

[0036] 600 the fourth anti-seepage layer. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] Reference Figure 1-5 The present application provides an underground pipeline protection structure, comprising:

[0041] A prefabricated culvert 100, wherein a first clamping groove 101 is provided at one end of the prefabricated culvert 100, and a first clamping protrusion 102 is provided at the other end. A receiving groove 103 for placing the underground pipeline 10 is provided on the inner bottom wall of the prefabricated culvert 100, and installation grooves 104 are provided on both sides of the receiving groove 103;

[0042] A prefabricated cover plate 200, the prefabricated cover plate 200 is covered on the prefabricated culvert platform 100, a plurality of first buffer springs 203 are arranged between the prefabricated cover plate 200 and the prefabricated culvert platform 100, a second clamping groove 201 is arranged at one end of the prefabricated cover plate 200, and a second clamping protrusion 202 is arranged at the other end;

[0043] A first protective structure 300, which is covered on the underground pipeline 10, and includes a first anti-seepage layer 301, a shock-absorbing layer 302, a fixing plate 303, and a plurality of first shock-absorbing plates 304 arranged separately on the fixing plate 303 from bottom to top; and

[0044] A second protective structure 400, the second protective structure 400 is covered on the first protective structure 300, the second protective structure 400 includes a protective shell 401 and a second impermeable layer 402 arranged from bottom to top, a plurality of second buffer springs 403 are arranged inside the protective shell 401, the second buffer springs 403 are arranged at the separation of the first damping plate 304, and a plurality of third buffer springs 405 are also arranged on both sides of the protective shell, and the third buffer springs 405 are arranged in the mounting groove 104;

[0045] There are several soil layers filled between the prefabricated cover plate 200 and the prefabricated culvert platform 100 .

[0046] Specifically, refer to Figure 1 and 5 The prefabricated culvert 100 may be a "concave"-shaped structure with an upper opening, and its side wall includes an outer support plate 105 and an inner support plate 106. The outer support plate 105 and the support plate are an integrated structure. It should be noted that the outer support plate 105 and the inner support plate 106 are distinguished here for the convenience of description. In actual production, the outer support plate 105 and the inner support plate 106 may be an integral whole, for example, by casting and other technical means, wherein one end of the outer support plate 105 and the inner support plate 106 has a space to form the first clamping groove 101, and the other end of the inner support plate 106 is away from the first clamping groove 101, forming a first clamping protrusion 102 that can be inserted into the first clamping groove 101. During construction, one prefabricated culvert 100 can be inserted into the first clamping groove 101 of another prefabricated culvert 100 through the first clamping protrusion 102, so that multiple prefabricated culverts 100 are connected end to end to achieve modular combination construction.

[0047] Specifically, refer to Figure 1 and 4 The prefabricated cover plate 200 is provided with at least two second snap-in protrusions 202 at one end and at least two second snap-in grooves 201 at the other end; each prefabricated cover plate 200 can be covered on a prefabricated culvert 100 and connected with the second snap-in groove 201 through the second snap-in protrusion 202.

[0048] Based on the connection between the first clamping protrusion 102 and the first clamping groove 101 and the connection between the second clamping protrusion 202 and the second clamping groove 201, the present application can achieve standardized and modular construction, and can effectively shorten the construction time.

[0049] Specifically, refer to Figure 1 , 4 and 5, the upper portion of the outer support plate 105 is higher than the upper portion of the inner support plate 106, the prefabricated cover plate 200 can be covered between the two outer support plates 105 on both sides of the prefabricated culvert 100, and can be supported by the two inner support plates 106 on both sides of the prefabricated culvert 100, effectively preventing the prefabricated cover plate 200 from shifting sideways when subjected to external impact, causing the prefabricated cover plate 200 to separate from the prefabricated culvert 100. In addition, a plurality of first buffer springs 203 are respectively arranged on both sides of the bottom of the prefabricated cover plate 200, and the first buffer spring 203 is fixedly connected to the prefabricated cover plate 200, and can be fixedly connected or non-fixedly connected to the prefabricated culvert 100, wherein when the first buffer spring 203 is fixedly connected to the prefabricated culvert 100, a welding point can be pre-arranged on the inner support plate 106 of the prefabricated culvert 100, so that the bottom end of the first buffer spring 203 is welded to the welding point; when the first buffer spring 203 is non-fixedly connected to the prefabricated culvert 100, a plurality of through holes can be pre-arranged on the upper part of the inner support plate 106 of the prefabricated culvert 100, wherein the depth of the through hole is less than the length of the first buffer spring 203, and the first buffer spring 203 is inserted into the through hole to prevent the prefabricated cover plate 200 from being tilted and failing to effectively play a buffering role when the first buffer spring 203 is inserted into the through hole to prevent the prefabricated cover plate 200 from being impacted.

[0050] Reference Figure 1 , 2As for 5, it can be understood that the container 103 on the inner bottom wall of the prefabricated culvert 100 is an arc-shaped structure as a whole, which can be well adapted to the underground pipeline 10. The first protective structure 300 is an arc-shaped structure as a whole, which is arranged on the underground pipeline 10, and together with the container 103, forms a covering for the underground pipeline 10. The first protective structure 300 includes a first impermeable layer 301, which is used to prevent the underground pipeline 10 from being corroded by the filled soil layer, and is also used to prevent the pollution of the external soil caused by the leakage of the underground pipeline 10. A fixing plate 303 is arranged on the upper part of the first impermeable layer 301, and the fixing plate 303 can be a corrosion-resistant arc-shaped metal plate or a hard plastic plate. A shock absorbing layer 302 is disposed on the upper part of the fixed plate 303, and a plurality of first shock absorbing plates 304 are disposed on the shock absorbing layer 302, wherein the plurality of first shock absorbing plates 304 are distributed along the axial direction of the shock absorbing layer 302 and the fixed plate 303, and a certain distance is spaced between two adjacent first shock absorbing plates 304. The first anti-seepage layer 301, the shock absorbing layer 302, the fixed plate 303 and the first shock absorbing plates 304 can be combined by bonding.

[0051] Reference Figure 1 , 2 3, it can be understood that the second protective structure 400 is an arc-shaped structure as a whole, and is covered on the first protective structure 300. The second protective structure 400 includes a protective shell 401, and the protective shell 401 can be a corrosion-resistant arc-shaped metal plate or a hard plastic plate. The upper part of the protective shell 401 is provided with a second impermeable layer 402, and the second impermeable layer 402 is used to prevent the corrosion of the filled soil layer to the underground pipeline 10, and also to prevent the pollution of the external soil caused by the leakage of the underground pipeline 10. Among them, the second impermeable layer 402 and the protective shell 401 can be combined by bonding. In addition, a plurality of second buffer springs 403 are also provided on the inner side of the protective shell 401, wherein the end of the plurality of second buffer springs 403 away from the protective shell can be inserted into the interval of the plurality of first damping plates 304. The provision of the second buffer spring 403 enables the second protective structure 400 to better absorb external impact loads and better protect the underground pipeline 10. A buffer gasket 404 is further provided at one end of the second buffer spring 403 away from the protective shell to increase the contact area between the second buffer spring 403 and the first protective structure 300, so as to prevent the second buffer spring 403 from tilting and failing to effectively absorb the impact load when the second protective structure 400 is impacted.

[0052] Reference Figure 1 , 3and 5, it can be understood that a plurality of third buffer springs 405 are respectively arranged on both sides of the protective shell, and a mounting groove 104 along its axial direction is respectively arranged on both sides of the receiving groove 103, and the third buffer spring 405 can be inserted into the mounting groove 104, wherein the depth of the mounting groove 104 is greater than the length of the third buffer spring 405, and the width of the mounting groove 104 is greater than the width of the side wall of the protective shell 401, so that the side wall of the protective shell 401 can be inserted into the mounting groove 104.

[0053] In view of the above scheme, two protective structures are set up in two places in the present application, which can effectively isolate the underground pipeline 10 from the filling soil layer to prevent the filling soil layer from corroding the underground pipeline 10. At the same time, the two protective structures themselves can absorb and disperse the impact load well to prevent the underground pipeline 10 from being damaged.

[0054] It can be understood that the first anti-seepage layer 301 and the second anti-seepage layer 402 can be high-density polyethylene film layers, the shock-absorbing layer 302 can be a rubber layer, and the first shock-absorbing board 304 can be an EPS board.

[0055] Reference Figure 1 , 3 As shown in Figure 5, through holes 107 are respectively provided on the side walls at both ends of the prefabricated culvert 100, and snap-in holes 406 are correspondingly provided on the side walls at both ends of the protective shell 401. The snap-in holes 406 are bar-shaped holes, and snap-in rods 108 are inserted through the through holes 107 and the snap-in holes 406.

[0056] Specifically, Figure 1 and Figure 5As shown, taking a prefabricated culvert 100 as an example, through holes 107 are respectively provided on the side walls at both ends of the prefabricated culvert 100, and at least four through holes 107 are provided on one prefabricated culvert 100, and snap-fit ​​holes 406 are correspondingly provided on the side walls at both ends of the protective shell 401, and at least four snap-fit ​​holes 406 are provided on one protective shell 401; wherein, the axis of the through hole 107 forms a certain angle with the side wall of the prefabricated culvert 100, and the axis of the snap-fit ​​hole 406 forms a certain angle with the protective shell 401. The side walls of the prefabricated culvert 100 form the same angle, and the setting of the angle makes the axis of the clamping rod 108 form the same angle with the side walls of the prefabricated culvert 100 and the side walls of the protective shell 401 when the clamping rod 108 passes through the through hole 107 and the clamping hole 406 in sequence, and the two clamping rods 108 on the side wall of the prefabricated culvert 100 form an "eight"-shaped structure, wherein the end with a smaller opening of the "eight"-shaped structure is located inside the prefabricated culvert 100, and the end with a larger opening is located outside the prefabricated culvert 100. It should be noted that the clamping rod 108 shown in the drawings of the present application is in a vertical state with the side wall of the prefabricated culvert 100, which is only one embodiment of the present application. The clamping rod 108 is connected to the side wall of the prefabricated culvert 100 at the through hole 107, and the connection can be a threaded connection, a clamping connection or other connection methods of existing technologies to prevent the clamping rod 108 from falling off. The clamping rod 108 mainly provides the protection shell 401 and the prefabricated culvert 100 with a limiting function in the direction perpendicular to the bottom wall of the prefabricated culvert 100 and along the axial direction of the pipeline. It can be understood that in the direction perpendicular to the bottom wall of the prefabricated culvert 100, under normal circumstances, due to the upward force of the third buffer spring 405, the second protective structure 400 is in a raised state, wherein the clamping hole 406 is set as a strip hole structure, which can give the protection shell 401 a certain upward and downward movement limit, and at the same time, the protection shell 401 and the clamping rod 108 generate friction to prevent lateral movement; when the overlying load generates a downward force causing the third buffer spring 405 to compress, the second protective structure 400 moves downward as a whole, and at this time, under the joint action of the clamping rods 108 at both ends, the second protective structure 400 can be prevented from moving in the axial direction of the underground pipeline 10.

[0057] Reference Figure 5 It can be understood that a second shock absorbing plate 1031 and a third anti-seepage layer 1032 are arranged in the container 103 from bottom to top.

[0058] Specifically, the second shock-absorbing plate 1031 disposed in the container 103 plays a shock-absorbing and protective role on the lower part of the underground pipeline, and the third anti-seepage layer 1032 can further prevent the underground pipeline from leaking.

[0059] It can be understood that the second shock-absorbing plate 1031 is an EPS plate, and the third anti-seepage layer 1032 is a high-density polyethylene film layer.

[0060] Reference Figure 1 It can be understood that the prefabricated cover plate 200 is covered with a fourth anti-seepage layer 600 .

[0061] Specifically, the provision of the fourth anti-seepage layer 600 can prevent external rainwater from entering the prefabricated culvert 100 , further reducing the corrosion problem on the underground pipeline 10 .

[0062] It can be understood that the fourth anti-seepage layer 600 is a high-density polyethylene film layer.

[0063] Reference Figure 1 It can be understood that a plurality of anchor piles 500 are arranged on the outer bottom wall of the prefabricated culvert 100 .

[0064] Specifically, one end of the anchor pile 500 is fixed on the outer bottom wall of the prefabricated culvert 100, and the other end is set as a sharp structure to facilitate the insertion of the anchor pile 500 into the soil. At the same time, a barb structure can also be set on the anchor pile 500 to improve the anchoring effect.

[0065] It can be understood that the space between the prefabricated cover plate 200 and the prefabricated culvert platform 100 is filled with a foam concrete layer and a silty soil layer from top to bottom.

[0066] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. An underground pipeline protection structure, characterized in that: include: A prefabricated culvert, wherein one end of the prefabricated culvert is provided with a first clamping groove, and the other end is provided with a first clamping protrusion, and the inner bottom wall of the prefabricated culvert is provided with a receiving groove for placing an underground pipeline, and both sides of the receiving groove are respectively provided with installation grooves; A prefabricated cover plate, wherein the prefabricated cover plate is disposed on the prefabricated culvert platform, a plurality of first buffer springs are disposed between the prefabricated cover plate and the prefabricated culvert platform, a second clamping groove is disposed at one end of the prefabricated cover plate, and a second clamping protrusion is disposed at the other end; A first protective structure, the first protective structure is covered on the underground pipeline, and the first protective structure includes a first anti-seepage layer, a shock-absorbing layer, a fixing plate, and a plurality of first shock-absorbing plates arranged separately on the fixing plate from bottom to top; as well as A second protective structure, the second protective structure is covered on the first protective structure, the second protective structure includes a protective shell and a second impermeable layer arranged from bottom to top, a plurality of second buffer springs are arranged inside the protective shell, the second buffer springs are arranged at the separation of the first shock absorbing plate, and a plurality of third buffer springs are also arranged on both sides of the protective shell, the third buffer springs are arranged in the mounting groove; Wherein, several soil layers are filled between the prefabricated cover plate and the prefabricated culvert.

2. The underground pipeline protection structure according to claim 1, characterized in that: The first anti-seepage layer and the second anti-seepage layer are high-density polyethylene film layers, the shock-absorbing layer is a rubber layer, and the first shock-absorbing board is an EPS board.

3. The underground pipeline protection structure according to claim 1, characterized in that: The side walls at both ends of the prefabricated culvert are respectively provided with through holes, and the side walls at both ends of the protective shell are correspondingly provided with clamping holes, the clamping holes are strip holes, and clamping rods are inserted through the through holes and the clamping holes.

4. An underground pipeline protection structure according to claim 1 or 3, characterized in that: A second shock-absorbing plate and a third anti-seepage layer are arranged in the container from bottom to top.

5. The underground pipeline protection structure according to claim 4, characterized in that: The second shock-absorbing board is an EPS board, and the third anti-seepage layer is a high-density polyethylene film layer.

6. The underground pipeline protection structure according to claim 4, characterized in that: The prefabricated cover plate is covered with a fourth anti-seepage layer.

7. The underground pipeline protection structure according to claim 6, characterized in that: The fourth anti-seepage layer is a high-density polyethylene film layer.

8. The underground pipeline protection structure according to claim 1, characterized in that: A plurality of anchor piles are arranged on the outer bottom wall of the prefabricated culvert.

9. The underground pipeline protection structure according to claim 1, characterized in that: A foam concrete layer and a muddy soil layer are filled from top to bottom between the prefabricated cover plate and the prefabricated culvert platform.

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