CN220888182U - Existing pipeline protection structure crossing road - Google Patents
Existing pipeline protection structure crossing road Download PDFInfo
- Publication number
- CN220888182U CN220888182U CN202322812670.0U CN202322812670U CN220888182U CN 220888182 U CN220888182 U CN 220888182U CN 202322812670 U CN202322812670 U CN 202322812670U CN 220888182 U CN220888182 U CN 220888182U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- pavement
- protection
- road
- existing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004568 cement Substances 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 16
- 239000011241 protective layer Substances 0.000 claims abstract description 16
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 13
- 239000010426 asphalt Substances 0.000 claims description 18
- 239000006260 foam Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 12
- 239000011381 foam concrete Substances 0.000 abstract description 8
- 239000002689 soil Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model relates to an existing pipeline protection structure crossing a road, which comprises cement stirring piles, a protection base layer and concrete piers arranged at the bottoms of pipelines, wherein the cement stirring piles are arranged between the pipelines, geogrids are arranged between the tops of the cement stirring piles, and the protection base layer is arranged on the geogrids. The utility model relates to an existing pipeline protection structure crossing a road, which comprises the steps of firstly, applying cement stirring piles between existing pipelines to strengthen the current soil around the existing pipelines, wherein virtual piles are adopted for designing roadbeds and roadbed layers. And the cement stirring pile top is fully paved by adopting a geogrid, so that reflection cracks on the pavement can be prevented. The light foam concrete protective layer with the thickness of 1.5m is adopted above the geogrid, so that the top load of the pipeline can be reduced. The continuous reinforced concrete pavement with the thickness of 0.44m is adopted above the light foam concrete protective layer, so that the load of the pavement can be reduced and transferred to the top of the pipeline, and the uneven settlement of the pavement above the top of the pipeline can be prevented.
Description
Technical Field
The utility model relates to the technical field of pavement construction, in particular to an existing pipeline protection structure crossing a road.
Background
Nowadays, with the rapid development of cities, newly built urban roads are more and more, and the situation that roads and urban existing pipelines are crossed or partially overlapped is frequently encountered in the construction process. In the urban road construction process, the existing pipeline is laid under a newly built road, and the pipeline is often subjected to serious influence under pressure change due to the construction of a roadbed, a road roller of the roadbed and the downtime effect of soil, and meanwhile, the pipeline is easily damaged due to partial excavation of a road section.
For example, long lines of urban roads in a city are constructed continuously, with a high probability involving crossing existing pipelines in the city. Most of the existing pipelines in cities are closely related to the normal work and life of peripheral enterprises and public institutions and residents, so that the normal operation of pipelines is important in construction. In the existing pipelines in cities, the raw water pipeline is an important water supply pipeline which can not be interrupted in the life of residents in the cities, the protection standard is stricter, and the deformation control standard is as follows according to the protection requirement of the raw water pipeline: the maximum sedimentation and the bulge quantity are less than or equal to 5mm; the differential deformation at the joint is less than or equal to 2.5mm. And the protection work is more difficult due to the larger diameter (usually 2-4 meters) of the raw water pipeline.
Disclosure of utility model
The utility model provides a protection structure of an existing pipeline crossing a road, which aims to solve the problems that the existing buried pipeline is positioned under the road construction pavement and is subjected to larger pressure and external excavation, so that the existing buried pipeline is extremely easy to damage and crack.
According to one aspect of the present utility model, there is provided a protection structure for existing pipes crossing a road, the structure being disposed at existing pipes below a newly built road and connecting base sections of both sides, the protection structure comprising cement mixing piles, a protection base layer and concrete piers disposed at the bottoms of the pipes, the cement mixing piles being disposed between the pipes, and geogrids being disposed between the tops of the cement mixing piles, the protection base layer being disposed on the geogrids, the protection base layer comprising a foamed lightweight concrete protection layer, a continuous reinforced concrete pavement, a coarse-grained asphalt pavement and a fine-grained modified asphalt pavement disposed in this order from below and above, both sides of the protection base layer being connected to the base sections.
On the basis of the scheme, the foundation road section preferably comprises a ground beam and a road surface arranged on the ground beam, wherein the road surface comprises a continuous reinforced concrete pavement, a coarse-grain asphalt pavement and a fine-grain modified asphalt pavement which are sequentially arranged from bottom to top, and the road surface and the continuous reinforced concrete pavement, the coarse-grain asphalt pavement and the fine-grain modified asphalt pavement of the protection base layer are integrally formed.
On the basis of the scheme, the height of the ground beam is preferably the same as the thickness of the foam lightweight concrete protective layer.
On the basis of the scheme, preferably, the height difference between the highest point of the pipeline and the geogrid is 500mm.
On the basis of the scheme, the thickness of the foam lightweight concrete protective layer is preferably larger than 1.5m.
The utility model relates to an existing pipeline protection structure crossing a road, which comprises the steps of firstly, applying cement stirring piles between existing pipelines to strengthen the current soil around the existing pipelines, wherein virtual piles are adopted for designing roadbeds and roadbed layers. And the cement stirring pile top is fully paved by adopting a geogrid, so that reflection cracks on the pavement can be prevented. The light foam concrete protective layer with the thickness of 1.5m is adopted above the geogrid, so that the top load of the pipeline can be reduced. The continuous reinforced concrete pavement with the thickness of 0.44m is adopted above the light foam concrete protective layer, so that the load of the pavement can be reduced and transferred to the top of the pipeline, and the uneven settlement of the pavement above the top of the pipeline can be prevented. And in the area outside the protected pipeline, three ground beams are respectively adopted to form an anchoring section, so that a certain bearing force is formed on the road surface in the area above the existing pipeline, and the load of the road surface is reduced to be transmitted to the pipeline.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic view of a structure of the present utility model for protecting existing pipes across roads;
FIG. 2 is a partial cross-sectional view of an existing conduit protection structure traversing the roadway in accordance with the present utility model;
Reference numerals illustrate:
Pipe 1, foundation section 2, ground beam 21, road surface 22, concrete pier 43, cement stirring pile 41, protection base layer 42, geogrid 44, foam lightweight concrete protective layer 45, continuous reinforced concrete pavement 46, coarse-grained asphalt pavement 47, and fine-grained modified asphalt pavement 48.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
For the sake of simplicity of the drawing, the parts relevant to the present utility model are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In the embodiment shown in the drawings, indications of orientation (such as up, down, left, right, front and rear) are used to explain the structure and movement of the various components of the utility model are not absolute but relative. These descriptions are appropriate when the components are in the positions shown in the drawings. If the description of the location of these components changes, then the indication of these directions changes accordingly.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
Referring to fig. 1 in combination with fig. 2, a protection structure for existing pipes crossing roads according to the present utility model is provided below a newly built road at existing pipes and connects foundation sections 2 on both sides, the protection construction structure for pipes 1 comprises cement mixing piles 41, a protection base layer 42 and concrete piers 43 provided at the bottom of the pipes 1, the cement mixing piles 41 are provided between the pipes 1, geogrids 44 are provided on the tops of the cement mixing piles 41, the geogrids 44 form a supporting layer on the tops of the cement mixing piles 41, and the protection base layer 42 is provided on the geogrids 44, the protection base layer 42 comprises a foamed lightweight concrete protection layer 45, a continuous reinforced concrete pavement 46, a coarse-grain asphalt pavement 47 and a fine-grain modified asphalt pavement 48 which are sequentially provided from below and above, and both sides of the protection base layer 42 are connected to the foundation sections 2.
Specifically, as shown in fig. 2, the foundation road section 2 of the present utility model includes a ground beam 21 and a road surface 22 disposed on the ground beam 21, the road surface 22 includes a continuous reinforced concrete road surface 46, a coarse-grain asphalt road surface 47 and a fine-grain modified asphalt road surface 48 disposed sequentially from bottom to top, and the road surface 22, the continuous reinforced concrete road surface 46 of the protection base layer 42, the coarse-grain asphalt road surface 47 and the fine-grain modified asphalt road surface 48 are integrally formed, so that continuity is ensured, and a good compression-resistant effect can be maintained for the whole road section, and breakage caused by partial compression sedimentation is not easy to occur in the construction road section.
In the present utility model, cement stirring piles 41 are firstly applied between the existing pipelines 1 to strengthen the current soil around the existing pipelines 1, wherein virtual piles are adopted for roadbed and road surface layer design, namely, no land beam 21 is arranged on a protective base layer 42. The geogrid 44 is fully paved on the top of the cement stirring pile 41, so that reflection cracks on the pavement can be prevented. The light foam concrete protective layer with the thickness of 1.5m is adopted above the geogrid 44, so that the top load of the pipeline 1 can be reduced. The continuous reinforced concrete pavement 46 with the thickness of 0.44m is adopted above the light foam concrete protective layer, so that the load of the pavement can be reduced from being transmitted to the top of the pipeline 1, and the uneven settlement of the pavement above the top of the pipeline can be prevented. And in the two areas outside the protected pipeline 1, three ground beams 21 are respectively adopted to form an anchoring section, so that a certain bearing force is formed on the road surface of the area above the existing pipeline 1, and the transmission of the road surface load to the pipeline 1 is reduced.
Preferably, the height of the inventive girder 21 is the same as the thickness of the foamed lightweight concrete protective layer 45. In order to reduce the acting force of pavement construction on the pipeline 1, the height difference between the highest point of the pipeline 1 and the geogrid 44 is 500mm. Preferably, the thickness of the foamed lightweight concrete protective layer 45 is greater than 1.5m.
According to the protection structure for the existing pipelines crossing the road, cement stirring piles 41 are firstly applied between the existing pipelines 1 to strengthen the current soil around the existing pipelines 1, wherein virtual piles are adopted for designing roadbeds and road layers. And the top of the cement stirring pile 41 is fully paved by adopting the geogrid 44, so that reflection cracks on the pavement can be prevented. The light foam concrete protective layer with the thickness of 1.5m is adopted above the geogrid 44, so that the top load of the pipeline 1 can be reduced. The continuous reinforced concrete pavement 46 with the thickness of 0.44m is adopted above the light foam concrete protective layer, so that the load of the pavement can be reduced from being transmitted to the top of the pipeline 1, and the uneven settlement of the pavement above the top of the pipeline can be prevented. And in the two areas outside the protected pipeline 1, three ground beams 21 are respectively adopted to form an anchoring section, so that a certain bearing force is formed on the road surface of the area above the existing pipeline 1, and the transmission of the road surface load to the pipeline 1 is reduced.
Finally, the method of the present utility model is only a preferred embodiment and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The utility model provides a cross existing pipeline protection architecture of road, sets up existing pipeline department below newly-built road to connect the basic highway section of both sides, its characterized in that, this pipeline protection architecture includes cement mixing pile, protection basic unit and sets up the concrete pier in the pipeline bottom, cement mixing pile sets up between the pipeline, just be provided with geogrid between cement mixing pile's the top, the protection basic unit sets up on the geogrid, the protection basic unit includes by lower and last foam lightweight concrete protective layer, continuous reinforcement concrete road surface, coarse-grained bituminous pavement and the fine-grained modified bituminous pavement that sets up in proper order, the both sides of protection basic unit with basic highway section links to each other.
2. The protection structure for existing pipelines crossing roads according to claim 1, wherein the foundation section comprises a ground beam and a road surface arranged on the ground beam, the road surface comprises a continuous reinforced concrete pavement, a coarse-grain asphalt pavement and a fine-grain modified asphalt pavement which are arranged from bottom to top in sequence, and the road surface and the continuous reinforced concrete pavement, the coarse-grain asphalt pavement and the fine-grain modified asphalt pavement of the protection base layer are integrally formed.
3. A cross road existing pipe protection structure according to claim 2, wherein the height of the ground beam is the same as the thickness of the foam lightweight concrete protective layer.
4. A cross road existing pipe protection structure according to claim 1, characterized in that the height difference between the highest point of the pipe and the geogrid is 500mm.
5. A cross road existing pipe protection structure according to claim 1, wherein the thickness of the foamed lightweight concrete protective layer is greater than 1.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322812670.0U CN220888182U (en) | 2023-10-20 | 2023-10-20 | Existing pipeline protection structure crossing road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322812670.0U CN220888182U (en) | 2023-10-20 | 2023-10-20 | Existing pipeline protection structure crossing road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220888182U true CN220888182U (en) | 2024-05-03 |
Family
ID=90840304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322812670.0U Active CN220888182U (en) | 2023-10-20 | 2023-10-20 | Existing pipeline protection structure crossing road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220888182U (en) |
-
2023
- 2023-10-20 CN CN202322812670.0U patent/CN220888182U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Xu et al. | A case history of shield tunnel crossing through group pile foundation of a road bridge with pile underpinning technologies in Shanghai | |
| Davies et al. | Factors influencing the structural deterioration and collapse of rigid sewer pipes | |
| Adams et al. | Design and construction guidelines for geosynthetic reinforced soil abutments and integrated bridge systems | |
| Li et al. | Numerical simulation and analysis of the pile underpinning technology used in shield tunnel crossings on bridge pile foundations | |
| Dafalla et al. | Road damage due to expansive soils: Survey of the phenomenon and measures for improvement | |
| Villen Salan | A monumental flood mitigation channel in Saudi Arabia | |
| Grygierek et al. | Influence of mining operations on road pavement and sewer system–selected case studies | |
| CN105178131B (en) | A kind of pavement structure | |
| CN106320352A (en) | Construction method for multifunctional steel sheet pile cofferdam | |
| CN220888182U (en) | Existing pipeline protection structure crossing road | |
| CN111287088A (en) | Special steel temporary bridge for protecting crossing pipeline and construction method thereof | |
| Martin et al. | Structural design and construction issues of approach slabs | |
| CN104074370B (en) | A kind of building with brick-concrete structure entirety cross the river shift method and special support changing device thereof | |
| Schary | Case studies on geocell-based reinforced roads, railways and ports | |
| Kayen et al. | Geoengineering and seismological aspects of the Niigata-Ken Chuetsu-Oki earthquake of 16 July 2007 | |
| CN211815447U (en) | Maintenance structure that sinks is damaged to road surface of crossing pipeline department bituminous paving | |
| CN211142682U (en) | Structure for preventing urban road subgrade from non-uniform settlement | |
| CN203144861U (en) | Local reinforcement structure for municipal road | |
| McGrath et al. | Performance of thermoplastic culvert pipe under highway vehicle loading | |
| CN206127852U (en) | Dark bridge of filling out bed course disconnect -type foundation structure is traded in adoption | |
| Daniyarov et al. | Deployment of the Geosynthetic Reinforced Soil Integrated Bridge System From 2011 to 2017 | |
| CN219059813U (en) | Corrugated steel box culvert channel structure applied to highway engineering | |
| CN217556594U (en) | Backfill and restore pavement structure after excavation of white-to-black pavement | |
| CN211815270U (en) | Quick maintenance structure of road surface infiltration under heavy load traffic | |
| CN215801794U (en) | Novel protection culvert structure for protecting underpass highway pipeline or optical cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |