CN212273255U - Wear dyke pipeline shock-absorbing structure - Google Patents
Wear dyke pipeline shock-absorbing structure Download PDFInfo
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- CN212273255U CN212273255U CN202021811347.1U CN202021811347U CN212273255U CN 212273255 U CN212273255 U CN 212273255U CN 202021811347 U CN202021811347 U CN 202021811347U CN 212273255 U CN212273255 U CN 212273255U
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Abstract
The utility model discloses a dyke-penetrating pipeline damping structure, which comprises a damping box culvert group arranged inside a dyke, and further comprises a fixed anchor block and a pipeline, wherein the dyke is extended from the front end and the rear end of the damping box culvert group, the fixed anchor block is connected in a plugging manner, a pipeline channel communicated with the damping box culvert group is arranged in the fixed anchor block, the pipeline is laid in a pipe penetrating channel inside the damping box culvert group, and the pipeline comprises a pipeline body and a buffer layer wrapped outside the pipeline body; the utility model discloses unique, the shock attenuation is effectual, construction convenience, and the effectual current pipeline of having solved vibration can cause pipe soil separation phenomenon to arouse inhomogeneous settlement when normal function, makes the pipeline take place to warp and causes the seepage of crossing the dyke pipeline, endangers overall structure's stability and dyke safe problem.
Description
Technical Field
The utility model belongs to dyke flood control safety dyke-crossing pipeline damping field, concretely relates to dyke-crossing pipeline shock-absorbing structure.
Background
Because of climate reasons, flood disasters occur frequently in China, and southern areas are affected by flood in summer almost every year. The dike is an important engineering facility for resisting flood and tidal water, brings great benefits in the aspects of flood control, irrigation, water supply, shipping and the like, and is particularly important for economic development and social stability. With the rapid development of the economy of the country, the number of the pipe embankment penetrating projects is increased day by day, and the pipe embankment penetrating projects have the characteristics of no influence on traffic transportation, no damage to the environment, short construction period, low construction cost and the like, so the pipe embankment penetrating projects are very wide in practical application.
The dyke crossing pipeline mostly runs in a high-pressure state in the flow transmission process, and due to the disturbance of power or control system action and the like, the conveying system is often subjected to water hammer working conditions, so that vibration is caused. Therefore, when the pipeline needs to penetrate through the dike body during laying, the vibration generated during the operation of the pipeline can cause the change of the contact surface between the pipeline and the surrounding soil body, influence the compactness of the soil body, possibly cause the generation of gaps, cause the loosening and leakage of the pipeline joint part and even burst, and cause certain damage to the dike.
At present, a steel pipe is usually placed in a reinforced concrete box culvert by a through-dyke pipeline structure adopted in engineering, and a gap between the steel pipe and the box culvert is filled with medium coarse sand. Because the structure is simpler, under the condition that the pipeline normally operates, the vibration problem still exists, the self-stability of the structure is influenced, and the safety of the dike is not good. Meanwhile, the pipe-soil separation phenomenon can be caused by the difference of rigidity and deformation between the pipeline and the soil body and the vibration of the pipeline, so that uneven settlement is caused, the deformation of the pipeline is further influenced, and the safety of the dike is adversely affected by a dike penetrating structure. And the vibration aggravates the leakage problem of the embankment pipeline, and the water seepage harms the stability of the whole structure and the safety of the embankment. In order to ensure that the safe operation of the dike under the original design condition is not influenced and no potential safety hazard is left when the pipeline penetrates the dike, the conventional dike penetrating pipeline structure needs to be improved and innovated, so that the influence of the conventional dike penetrating pipeline structure on dike facilities is reduced as much as possible.
SUMMERY OF THE UTILITY MODEL
Defect and problem to current dyke pipeline structure existence, the utility model provides a dyke pipeline shock-absorbing structure wears, unique, the shock attenuation is effectual, construction convenience, and the effectual current pipeline of having solved vibration can cause the pipe soil separation phenomenon to arouse inhomogeneous settlement when normal function, makes the pipeline take place to warp and causes the seepage of dyke pipeline, endangers overall structure's stability and dyke safety's problem.
The utility model provides a scheme that its technical problem adopted is: the embankment-penetrating pipeline damping structure comprises a damping box culvert group arranged inside an embankment, and further comprises a fixed anchor block and a pipeline, wherein the front end and the rear end of the damping box culvert group extend out of the embankment and are connected with the fixed anchor block in a plugging manner, a pipeline channel communicated with the damping box culvert group is arranged in the fixed anchor block, the pipeline is laid in a pipe penetrating channel inside the damping box culvert group, the pipeline comprises a pipeline body and a buffer layer wrapped outside the pipeline body, the front end and the rear end of the pipeline both penetrate through the pipeline channel in the fixed anchor block outwards to extend out of the embankment, and an assembly gap is formed between the pipeline and the inner wall of the pipe penetrating channel and between the pipeline and the pipeline channel and filled with medium coarse sand; the damping box culvert group comprises a plurality of sections of damping box culverts which are connected together in a sealing mode, each damping box culvert comprises a box culvert foundation and a box culvert cover plate, each box culvert foundation comprises a box culvert base and supporting side walls positioned on the left side and the right side of the box culvert base, a plurality of anti-skidding convex teeth are arranged on the bottom surface of each box culvert base at intervals along the longitudinal direction, the left end and the right end of each box culvert cover plate are respectively erected at the top ends of the adjacent supporting side walls, each top end of each supporting side wall is longitudinally provided with a groove which is sunken downwards, the bottom surface of each box culvert cover plate positioned above each groove is longitudinally provided with a key groove which is matched with each groove, and each key groove is matched; and a water stopping structure is arranged between the top end of the supporting side wall on the inner side of the groove and the cover plate.
Furthermore, the box culvert foundation and the box culvert cover plate are both formed by pouring rubber concrete, and a steel reinforcement framework is laid in the box culvert foundation and the box culvert cover plate.
Furthermore, the thickness dimension of the key groove is a, the width dimension of the key groove is b, wherein b is more than or equal to 3a and less than or equal to 10a, and the thickness dimension a of the key groove is not less than 30 mm.
Furthermore, the buffer layer is a rubber protective layer.
Further, the diameter of the pipe body is a, the thickness of the outer buffer layer of the pipe is b, and when the diameter a of the pipe body is smaller than 1m, the thickness of the outer buffer layer of the pipe is 10 mm; when the pipe body has a diameter dimension a of more than 1m, the outer buffer layer has a thickness dimension b of
To
In the meantime.
Furthermore, the lateral wall of the supporting side wall on the left side and the right side of the damping box culvert is evenly provided with tooth walls.
Furthermore, the water stopping structure comprises a vertical water stopping belt longitudinally embedded at the top end of the supporting side wall, and the top end of the water stopping belt protrudes upwards.
Furthermore, the horizontal cross section of the anti-skidding convex teeth is V-shaped.
The utility model has the advantages that: the utility model provides a wear dyke pipeline shock-absorbing structure, the structure is unique, including pipeline, fixed anchor block and the shock attenuation box culvert group of arranging in the dyke, the dyke of both sides all is equipped with fixed anchor block outside around the shock attenuation box culvert group, be equipped with the pipeline passageway that is linked together with the shock attenuation box culvert group in the fixed anchor block, the pipeline is laid in the shock attenuation box culvert group inside, and the pipeline both ends all outwards pass the pipeline passageway in the fixed anchor block and extend the dyke around the pipeline, fixed anchor block is used for playing a supporting role to the pipeline, and prevent that the pipeline from taking place the displacement and influencing the wholeness and the stability of overall structure; the outer parcel of pipeline has the buffer layer, the buffer layer is the rubber material, has better elasticity, shock resistance, the wearability, characteristics such as erosion resistance, all there is the fit-up gap between pipe impulse layer and shock attenuation box culvert inner wall and the pipeline passageway, and it has well coarse sand to fill, the outside buffer layer of pipeline can reduce the pipeline at the vibration of normal operation self production, and alleviate the transmission of vibrations, thereby avoid sending out pipe soil separation phenomenon, and the buffer layer can also reduce the influence to the pipeline by the external vibration that earthquake or other factors cause, resist the erosion of external environment, protect the pipeline, and then protect the safety of dyke building.
The damping box culvert comprises a box culvert foundation and a box culvert cover plate, the box culvert cover plate is overlapped and plugged on a supporting side wall of the box culvert foundation, the top end of the supporting side wall is longitudinally provided with a groove which is sunken downwards, the bottom surface of the box culvert cover plate positioned above the groove is longitudinally provided with a key groove matched with the groove, and the key groove is matched and embedded in the groove; the box culvert cover plate can be positioned when the box culvert cover plate is installed through the matching of the key groove and the groove, the box culvert cover plate and the box culvert foundation can be combined more tightly through the matching of the key groove and the groove, so that the box culvert cover plate has stronger stability when in operation, and when the key groove is matched and clamped in the groove, the key groove and the groove are matched and combined to form a U-shaped communicating vessel, so that if water permeates into the damping box culvert from the outside through a sectional seam between the box culvert cover plate and the box culvert foundation, the key groove and the groove can block the water, and a water stopping structure is arranged between the top end of the supporting side wall on the inner side of the groove and the cover plate, so that the seepage prevention capability of the sectional seam between the box culvert cover plate and the box culvert foundation is further improved; the bottom of shock attenuation box culvert is equipped with anti-skidding dogtooth, the anti-skidding ability of shock attenuation box culvert has not only been strengthened, and shock attenuation box culvert between two anti-skidding dogteeth is not with the dam body contact, thereby can avoid water upwards to reverse the seepage along the bottom of shock attenuation box culvert, and box culvert basis and box culvert apron are all formed by rubber concrete pouring, compare with current normality concrete and have the ductility height, impact resistance is strong, characteristics that durability is high, and performance after carrying out the arrangement of reinforcement is also stronger than the normality concrete, and can reduce the vibrations that send at the embankment in-process to the influence of dyke building, the safety of dyke has been guaranteed, the stability of dyke flood control has been strengthened.
The utility model provides a wear dyke pipeline shock-absorbing structure, the structure is unique, the shock attenuation is effectual, construction convenience, and the effectual current pipeline of having solved vibration can cause the pipe-soil separation phenomenon to arouse inhomogeneous settlement when normal function, makes the pipeline take place to warp and causes the seepage of wearing dyke pipeline, endangers overall structure's stability and dyke safe problem.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional view taken along the line a-a in fig. 1.
Fig. 3 is a schematic sectional view along the direction B-B in fig. 1.
Fig. 4 is a schematic sectional view along the direction C-C in fig. 1.
Figure 5 is the utility model discloses the keyway is arranged with the stagnant water schematic diagram on the shock attenuation box culvert.
Figure 6 is the utility model discloses shock attenuation box culvert bottom antiskid dogtooth structure sketch map.
Fig. 7 is a schematic structural view of the pipe support member of the present invention.
Fig. 8 is a schematic view of the drainage passage opening position of the present invention.
Reference numbers in the figures: 1 is the shock attenuation box culvert group, 11 is the box culvert basis, 111 is the box culvert base, 112 is for supporting the side wall, 113 is anti-skidding dogtooth, 114 is the slot, 115 is the keyway, 1141 is the wash port, 12 is the box culvert apron, 2 is the pipeline, 21 is the pipeline body, 22 is the buffer layer, 3 is fixed anchor block, 4 is the rubble, 5 is well coarse sand, 6 is pipeline support piece, 61 is fixed cover, 62 is for supporting the pterygoid lamina.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
The dyke crossing pipeline mostly runs in a high-pressure state in the flow transmission process, and due to the disturbance of power or control system action and the like, the conveying system is often subjected to water hammer working conditions, so that vibration is caused. Therefore, when the pipeline needs to penetrate through the dike body during laying, the vibration generated during the operation of the pipeline can cause the change of the contact surface between the pipeline and the surrounding soil body, influence the compactness of the soil body, possibly cause the generation of gaps, cause the loosening and leakage of the pipeline joint part and even burst, and cause certain damage to the dike. At present, when laying of pipelines needs to penetrate through a dike body, the dike penetrating mode is generally adopted, the pipelines are placed in a reinforced concrete box culvert, and gaps between steel pipes and the box culvert are filled with medium coarse sand. However, under the condition of normal operation of the pipeline, the problem of vibration still exists, the self-stability of the structure is affected, and the safety of the dike is not good. Meanwhile, the pipe-soil separation phenomenon can be caused by the difference of rigidity and deformation between the pipeline and the soil body and the vibration of the pipeline, so that uneven settlement is caused, the deformation of the pipeline is further influenced, and the safety of the dike is adversely affected by a dike penetrating structure. And the vibration aggravates the leakage problem of the embankment pipeline, and the water seepage harms the stability of the whole structure and the safety of the embankment.
In order to solve the above problems, the present invention provides a dike-penetrating pipeline damping structure, as shown in fig. 1-5, comprising a damping box culvert group 1 arranged inside a dike, a pipeline 2 and a fixed anchor 3, wherein the front and rear ends of the damping box culvert group 1 extend out of the dike and are connected with the fixed anchor 3 in a sealing manner, a pipeline channel communicated with the damping box culvert group is arranged in the fixed anchor 3, the fixed anchor 3 is a common anchor, the pipeline 2 is laid in the pipe-penetrating channel inside the damping box culvert group 1, the pipeline 2 comprises a pipeline body 21 and a buffer layer 22 wrapped outside the pipeline body, the pipe-penetrating layer 22 is made of rubber, and has the characteristics of good elasticity, shock resistance, wear resistance, erosion resistance and the like, the front and rear ends of the pipeline both outwards penetrate through the pipeline channel inside the fixed anchor 3 and extend out of the dike, and an assembly gap exists between the pipeline 2 and the inner wall of the pipe-penetrating channel and the pipeline channel, the medium coarse sand is densely filled, the buffer layer 22 outside the pipeline 2 can reduce the vibration of the pipeline 22 during normal operation and reduce the transmission of the vibration, so that the pipe-soil separation phenomenon of the pipeline 2 in a pipe penetrating channel is avoided, the buffer layer 22 can also reduce the influence of the external vibration caused by earthquake or other factors on the pipeline, resist the erosion of the external environment, protect the pipeline and further protect the safety of the embankment building, and the buffer layer has the characteristic of corrosion resistance and can prolong the service life of the pipeline; pipeline 2 is when the embankment of cominging in and going out, can produce the bend section, fixed anchor 3 is in order to play the supporting role to pipeline 2, prevent the adverse effect that 2 displacements of pipeline etc. produced overall structure, and the 2 lower parts of pipeline that pass fixed anchor 3 have laid 4 rubbles of rubble and have formed the support base course, pipeline 2 is filled around with well coarse sand 5 and forms the protective layer, also throw on the well coarse sand and have filled rubble 4, well coarse sand 5 that pipeline 2 was filled around can protect pipeline 2 not take place direct contact with the rubble effectively, thereby avoided pipeline 2 and 4 contact friction of rubble, influence pipeline life.
The thickness dimension of the outer buffer layer of the pipe 2 is related to the diameter dimension of the pipe body, the diameter dimension of the pipe body 21 is a, the thickness dimension of the outer buffer layer 22 of the pipe 2 is b, and when the diameter dimension a of the pipe body is smaller than 1m, the thickness dimension of the outer buffer layer of the pipe is 10 mm; when the diameter dimension a of the pipe body is larger than 1m, the thickness dimension b of the buffer layer outside the pipe is
To
The thickness of the external buffer layer of the pipeline is set according to the standard, so that the waste and the performance surplus of materials can be avoided on the premise of ensuring the safe operation of the pipeline.
The damping box culvert group 1 comprises a plurality of sections of damping box culverts which are connected together in a sealing way, rectangular pipe penetrating channels are arranged in the damping box culverts, and the length dimension of each section of damping box culvert is 10m, as shown in figures 4 and 5, the damping box culvert comprises a box culvert foundation 11 and a box culvert cover plate 12, the box culvert foundation 11 comprises a box culvert base 111 and supporting side walls 112 positioned at the left side and the right side of the box culvert base, the left end and the right end of the box culvert cover plate are respectively erected at the top ends of the adjacent supporting side walls 112, the box culvert cover 12 and the box culvert foundation 11 are matched to form the rectangular pipe penetrating channels with the front end and the rear end being open, the box culvert foundation 11 and the box culvert cover plate 12 are both made of rubber concrete, a steel bar framework is paved in the box culvert reinforcing steel bar framework for increasing the supporting strength of the damping box culvert, compared with the existing normal concrete, the damping box culvert formed by adopting rubber casting has the characteristics, when the dike is penetrated, the shock generated by the damping box culvert poured by the rubber concrete is low, so that the influence on the dike construction is reduced, the safety of the dike is ensured, and the flood control stability of the dike is enhanced; the size of the inside rectangle poling passageway of shock attenuation box culvert is confirmed by the thickness and the boundary distance industrial standard of pipeline, and the thickness dimension of each position of its shock attenuation box culvert and the intensity dimension that is used for pouring shock attenuation box culvert rubber concrete all can change according to the concrete demand of engineering, for example: according to past construction experience, the thickness of the box culvert base 111 and the supporting side walls 112 on the left side and the right side of the box culvert base is 250mm, the thickness of the box culvert cover plate 12 is 300mm, and the strength of rubber concrete for pouring the damping box culvert is not lower than C25.
The bottom surface of box culvert base 111 is equipped with many anti-skidding dogteeth 113 along longitudinal separation, and the mode that sets up of anti-skidding dogtooth 113 can take to lie in box culvert basis 11 and pour the shaping together, and anti-skidding dogtooth 113 has not only strengthened the anti-skidding ability of shock attenuation box culvert, and the shock attenuation box culvert between two anti-skidding dogteeth 113 does not contact with the dyke moreover to can avoid water to upwards reverse ooze along the bottom of shock attenuation box culvert.
The top ends of the supporting side walls 112 are respectively provided with a groove 114 which is recessed downwards along the longitudinal direction, the bottom surface of the box culvert cover plate 12 above the groove 114 is provided with a key groove 115 which is matched with the groove 114 along the longitudinal direction, and the key groove 115 is matched and clamped in the groove 114; the thickness of the key groove is a, the width of the key groove is b, wherein b is not less than 3a and not more than 10a, and the thickness a of the key groove is not less than 30 mm; a water stopping structure is arranged between the top end of the supporting side wall at the inner side of the groove 114 and the cover plate, and the form of the water stopping structure can be various, such as: the water stopping structure is a vertical water stopping belt, the water stopping belt is longitudinally embedded at the top end of the supporting side wall, and the top end of the water stopping belt is arranged in an upward protruding mode; the box culvert cover plate can be positioned when the box culvert cover plate is installed by matching the key groove and the groove, the box culvert cover plate can be combined with the box culvert foundation more tightly, so that the box culvert cover plate has stronger stability when in operation, and when the key groove is matched and embedded in the groove, the key groove and the groove are matched and combined to form a U-shaped communicating device, so that if water permeates into the damping box culvert from the outside through the sectional seam between the box culvert cover plate and the box culvert foundation, the key groove and the groove can block the water, and when the key groove is matched and embedded in the groove, a water stop belt positioned at the top end of the supporting side wall at the inner side of the groove can be extruded by the box culvert cover plate 12 to generate deformation, thereby further improving the seepage-proofing capacity of the sectional seam between the box culvert cover plate and the box culvert foundation, and preventing the water from permeating into the damping box culvert from the outside through the sectional seam between the box culvert cover plate 12 and the box culvert foundation 11, the phenomenon of agglomeration and sedimentation can occur after the medium coarse sand filled in the damping box is contacted with water.
Example 2
As shown in fig. 6, the bottom surface of the box culvert base 111 is uniformly provided with a plurality of anti-skidding convex teeth 113 along the longitudinal direction at intervals, and the horizontal cross section of the anti-skidding convex teeth is V-shaped, the arrangement mode of the anti-skidding convex teeth 113 can be formed by pouring the box culvert foundation 11 together, and the damping box culvert between the two anti-skidding convex teeth 113 is not in contact with the dike, so that the water is prevented from upwards seeping along the bottom of the damping box culvert, and compared with the embodiment 1, the horizontal cross section of the anti-skidding convex teeth on the bottom surface of the box culvert base 111 of the embodiment is V-shaped, so that the contact area between the anti-skidding convex teeth 113 and the dike is increased, the friction force between the damping box culvert and the dike is improved, the capability of the damping box culvert for resisting the front and back sliding is enhanced, and the capability of the damping box culvert for.
Example 3
As shown in fig. 8, the groove bottom of the groove 114 is provided with a drainage hole 1141 inclined outwards, as shown in fig. 5, when the box culvert cover plate 12 is assembled with the box culvert foundation 11, the key slot 115 is matched and clamped in the groove 114, and the matching combination forms a U-shaped communicating vessel, when water permeates into the damping box culvert from the outside through the sectional seams between the box culvert cover plates and the box culvert foundation, the key groove and the groove block water, and since the groove bottom of the groove 114 is provided with the drainage hole 1141 obliquely outward, so that when water permeates from the outside to the inside of the damping box culvert through the sectional gaps between the box culvert cover plates and the box culvert foundation, the water flowing into the grooves 114 is discharged out of the grooves 114 through the water discharge holes, therefore, water can not be accumulated in the grooves 114 any more, and the influence on the service life of the damping box culvert caused by the erosion of the water accumulated in the grooves 114 for a long time to the integral structure of the damping box culvert is effectively avoided.
Example 4
As shown in fig. 7, a plurality of pipeline supporting members 6 are sleeved on the pipeline 2 in the damping box culvert group at intervals along the axial direction, each pipeline supporting member 6 comprises a fixing sleeve 61 and supporting wing plates 62, the fixing sleeve 61 is sleeved on the pipeline 2 in a matching manner, 4 supporting wing plates 62 which are arranged along the radial direction are symmetrically welded and fixed on the outer ring surfaces of the left side and the right side of the fixing sleeve 61 at intervals along the circumference, a matching gap exists between the other ends of the supporting wing plates 62 and the inner wall of the pipe penetrating channel of the damping box culvert group, and in use, the area of a contact surface between the pipeline 2 and the filled medium coarse sand 5 is increased through the supporting wing plates 62 on the two sides of the pipeline supporting member 6, so that the sinking resistance of the pipeline 2 is increased, and the problem that pipe soil separation occurs in the pipe penetrating channel due to the vibration generated by.
Claims (8)
1. The embankment-penetrating pipeline damping structure comprises a damping box culvert group arranged inside an embankment, and is characterized by further comprising a fixed anchor block and a pipeline, wherein the front end and the rear end of the damping box culvert group extend out of the embankment and are connected with the fixed anchor block in a plugging manner, a pipeline channel communicated with the damping box culvert group is arranged in the fixed anchor block, the pipeline is laid in a pipe-penetrating channel inside the damping box culvert group and comprises a pipeline body and a buffer layer wrapped outside the pipeline body, the front end and the rear end of the pipeline both outwards penetrate through the pipeline channel in the fixed anchor block to extend out of the embankment, and an assembly gap is formed between the pipeline and the inner wall of the pipe-penetrating channel and between the pipeline and the pipeline channel and filled with medium coarse sand; the damping box culvert group comprises a plurality of sections of damping box culverts which are connected together in a sealing mode, each damping box culvert comprises a box culvert foundation and a box culvert cover plate, each box culvert foundation comprises a box culvert base and supporting side walls positioned on the left side and the right side of the box culvert base, a plurality of anti-skidding convex teeth are arranged on the bottom surface of each box culvert base at intervals along the longitudinal direction, the left end and the right end of each box culvert cover plate are respectively erected at the top ends of the adjacent supporting side walls, each top end of each supporting side wall is longitudinally provided with a groove which is sunken downwards, the bottom surface of each box culvert cover plate positioned above each groove is longitudinally provided with a key groove which is matched with each groove, and each key groove is matched; and a water stopping structure is arranged between the top end of the supporting side wall on the inner side of the groove and the cover plate.
2. The embankment-penetrating pipeline shock absorption structure according to claim 1, wherein the box culvert foundation and the box culvert cover plate are both made of rubber concrete and internally laid with a steel reinforcement framework.
3. The embankment pipe shock-absorbing structure according to claim 1, wherein the thickness dimension of the key groove is a, the width dimension of the key groove is b, wherein b is larger than or equal to 3a and smaller than or equal to 10a, and the thickness dimension a of the key groove is not smaller than 30 mm.
4. The embankment pipe shock-absorbing structure according to claim 1, wherein the buffer layer is a rubber protective layer.
5. The embankment pipe shock-absorbing structure according to claim 1, wherein the pipe body has a diameter dimension of a, the pipe outer buffer layer has a thickness dimension of b, and when the pipe body diameter dimension a is smaller than 1m, the pipe outer buffer layer has a thickness dimension of 10 mm; when the diameter dimension a of the pipe body is larger than 1m, the thickness dimension b of the buffer layer outside the pipe is
To
In the meantime.
6. The embankment-penetrating pipe shock absorption structure according to claim 1, wherein the outer side walls of the supporting side walls on the left side and the right side of the shock absorption box culvert are uniformly provided with tooth walls.
7. The embankment-piercing pipe shock-absorbing structure according to claim 1, wherein the water-stopping structure comprises a vertical water-stopping strip embedded at the top end of the supporting side wall in the longitudinal direction, and the top end of the water-stopping strip is upwards convex.
8. The embankment conduit shock-absorbing structure according to claim 1, wherein the horizontal cross section of the anti-slip teeth is V-shaped.
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| CN112032404A (en) * | 2020-08-26 | 2020-12-04 | 华北水利水电大学 | Wear dyke pipeline shock-absorbing structure |
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