A type of high embankment retaining wall around an existing road site that is prone to flooding

Abstract

This application relates to a high-fill retaining wall for existing road sites that is prone to flooding, comprising multiple bored piles, capping beams, connecting beams, and reinforced concrete cantilever slabs. The bottom ends of the bored piles penetrate through a silt layer to a relatively stable soil layer. The multiple bored piles are arranged in two rows at intervals, with a predetermined gap between adjacent bored piles in the same row. There are at least two capping beams, which are arranged opposite each other and connect to the multiple bored piles in the same row. There are multiple connecting beams, which are arranged at intervals along the length of the capping beams, connecting at least two oppositely arranged capping beams. The reinforced concrete cantilever slab is located on top of the bored piles and covers at least a portion of the multiple bored piles. The reinforced concrete cantilever slab is anchored to the capping beams. This high-fill retaining wall for existing road sites can make fuller use of its top space, which is beneficial for the reconstruction and improvement of existing roads.

Description

Technical Field

[0001] This application relates to the field of roadbed retaining wall technology, specifically to a high embankment water-saturated retaining wall around an existing road site. Background Technology

[0002] As the development of national infrastructure approaches saturation, new projects are decreasing, while improvement and renovation projects are increasing. Site conditions are becoming more complex, requiring projects to simultaneously meet the operational needs of existing infrastructure while minimizing disruption to people's daily lives. This necessitates specialized research into various specific issues. Within the realm of conventional municipal roads, roads primarily serve the surrounding area, and the site elevation is generally uniform within a given area, ensuring drainage. Therefore, high slopes and retaining walls are relatively rare. High retaining walls within urban roads are primarily roadside river retaining walls; however, these technologies often result in poor utilization of the space above the retaining walls. Summary of the Invention

[0003] This application provides a high embankment flood-prone retaining wall around an existing road site. This high embankment flood-prone retaining wall around an existing road site can make fuller use of its top space, which is beneficial to the reconstruction and improvement of the existing road.

[0004] The existing road site surrounding high embankment water-soaked retaining wall provided in this application includes: multiple bored piles, the bottom end of the bored piles passing through the silt layer to a relatively stable soil layer, the multiple bored piles being arranged in two rows at intervals, and there being a preset gap between two adjacent bored piles in the same row. The capping beam and the connecting beam, wherein there are at least two capping beams, the at least two capping beams are arranged opposite each other and respectively connect to a plurality of the bored piles in the same row, and there are a plurality of connecting beams, the plurality of connecting beams are arranged at intervals along the length direction of the capping beams, and the connecting beams connect at least two capping beams arranged opposite each other; A reinforced concrete cantilever slab is disposed on top of the bored piles and can cover at least a portion of the plurality of bored piles. The reinforced concrete cantilever slab is anchored to the cap beam.

[0005] In addition, the existing road site perimeter high embankment flood-prone retaining wall provided in this application also has the following additional technical features: In one alternative, the high embankment retaining wall surrounding the existing road site also includes multiple interstitial bored piles. The interstitial bored piles are located between the multiple bored piles in the outer row. The number of interstitial bored piles between two adjacent bored piles is at least one, and the insertion depth of the interstitial bored pile is less than the insertion depth of the bored pile.

[0006] In one alternative scheme, the bottom end of the intermittently drilled cast-in-place pile passes through the silt layer to a relatively stable soil layer. The depth of the intermittently drilled cast-in-place pile below the ground is defined as h, and the depth of the drilled cast-in-place pile below the ground is defined as H. Then 1 / 2 < h / H < 1.

[0007] In one alternative, the high embankment retaining wall surrounding the existing road site also includes multiple drainage pipes. The drainage pipes are located between multiple bored piles in the outer row, with the inlet end of the drainage pipes extending into the soil foundation between the two rows of bored piles. The drainage pipes are PVC drainage pipes with a slope ratio of 10%.

[0008] The beneficial effects of this application are as follows: The existing road site surrounding the high embankment flood-prone retaining wall in this application is connected to the bored piles by capping beams and connecting beams to form an integral structure, thereby ensuring the stability of the entire structure. In addition, the reinforced concrete cantilever slab is located on top of multiple bored piles and is anchored to the capping beam. This arrangement allows the entire structure to bear a certain vehicle load, greatly increasing the utilization rate of the space at the top of the retaining wall, which is beneficial to the reconstruction and improvement of the existing road.

[0009] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the installation structure of the high embankment flood-prone retaining wall around the existing road site in this application; Figure 2 for Figure 1 A top-down structural diagram of the high embankment retaining wall that is submerged in water around the existing road site.

[0011] Attached reference numerals: 1. Bored pile; 2. Cap beam; 3. Connecting beam; 4. Reinforced concrete cantilever slab; 5. Intermittent bored pile; 6. Drainage pipe.

[0012] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0013] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0014] It should be understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other technical solutions obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0015] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0016] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0017] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0018] like Figure 1-2 As shown in the embodiment of this application, a high embankment flood-prone retaining wall is provided around an existing road site. This retaining wall mainly includes multiple bored piles 1, capping beams 2, connecting beams 3, and reinforced concrete cantilever slabs 4. The bottom ends of the bored piles 1 penetrate through a silt layer to a relatively stable soil layer. The multiple bored piles 1 are arranged in two rows at intervals, with a predetermined gap between adjacent bored piles 1 in the same row. There are at least two capping beams 2, which are arranged opposite each other and connect to the multiple bored piles 1 in the same row. There are multiple connecting beams 3, which are arranged at intervals along the length of the capping beams 2, connecting at least two oppositely arranged capping beams 2. The reinforced concrete cantilever slab 4 is located on top of the bored piles 1 and can cover at least a portion of the multiple bored piles 1. The reinforced concrete cantilever slab 4 is anchored to the capping beams 2.

[0019] In this embodiment, the high embankment retaining wall surrounding the existing road site is connected to the bored piles 1 by the capping beam 2 and connecting beam 3 to form an integral structure, thus ensuring the stability of the entire structure. It not only retains soil but also provides enclosure function. In addition, the reinforced concrete cantilever slab 4 is located on top of multiple bored piles 1 and is anchored to the capping beam 2. This arrangement allows the entire structure to bear a certain vehicle load, greatly increasing the utilization rate of the space at the top of the retaining wall. During implementation, it is beneficial to the surrounding main traffic lanes. The construction technology and process are simple, the construction period is short, and it is conducive to the reconstruction and improvement of existing roads.

[0020] like Figure 1-2 As shown, in one specific embodiment, the high embankment retaining wall surrounding the existing road site also includes multiple interstitial bored piles 5. These interstitial bored piles 5 are located between multiple bored piles 1 in the outermost row. At least one interstitial bored pile 5 is provided between any two adjacent bored piles 1, and the insertion depth of the interstitial bored pile 5 is less than the insertion depth of the bored pile 1. In this embodiment, two interstitial bored piles 5 are provided between any two adjacent bored piles 1. However, the number of interstitial bored piles 5 can be determined based on the actual construction conditions and the gap between two adjacent bored piles 1, and this is not specifically limited herein.

[0021] Understandably, during the actual construction, the intermittent bored piles are constructed after the bored piles 1 are completed, followed by the construction of the cap beam 2 and connecting beam 3, and finally the construction of the reinforced concrete cantilever slab 4. Therefore, the cap beam 2 connects the multiple bored piles 1 and intermittent bored piles 5 in the outer row, and the reinforced concrete cantilever slab 4 can also cover the top of the intermittent bored piles 5, so that the intermittent bored piles 5 can bear part of the load.

[0022] like Figure 1 As shown, in one specific embodiment, the bottom end of the intermittently drilled cast-in-place pile 5 passes through the silt layer to a relatively stable soil layer. The depth of the intermittently drilled cast-in-place pile 5 below the ground is defined as h, and the depth of the drilled cast-in-place pile 1 below the ground is defined as H. Then 1 / 2 < h / H < 1.

[0023] In this embodiment, both the bored pile 1 and the intermittent bored pile 5 have penetrated the silt layer to a relatively stable soil layer, and the pile body has good stability. The intermittent bored pile 5 set near the outer side can play a good blocking role for the roadbed or soil foundation behind the retaining wall, and distribute the pressure on the pile body, thereby improving the stability of the entire pile connection structure.

[0024] like Figure 1As shown, in one specific embodiment, the high embankment retaining wall surrounding the existing road site also includes multiple drainage pipes 6. The drainage pipes 6 are located between multiple bored piles 1 in the outer row, specifically near the top of the bored piles 1. The inlet end of the drainage pipe 6 extends into the soil foundation between the two rows of bored piles 1. The drainage pipe 6 is a PVC drainage pipe 6 with a slope ratio of 10%. The drainage pipe 6 with this slope ratio can effectively drain the pore water in the soil foundation behind the retaining wall.

[0025] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high embankment retaining wall for flooding around an existing road site, characterized in that, include: Multiple bored piles, the bottom of which penetrates through the silt layer to a relatively stable soil layer, are arranged in two rows at intervals, and there is a preset gap between two adjacent bored piles in the same row. The capping beam and the connecting beam, wherein there are at least two capping beams, the at least two capping beams are arranged opposite each other and respectively connect to a plurality of the bored piles in the same row, and there are a plurality of connecting beams, the plurality of connecting beams are arranged at intervals along the length direction of the capping beams, and the connecting beams connect at least two capping beams arranged opposite each other; A reinforced concrete cantilever slab is disposed on top of the bored piles and can cover at least a portion of the plurality of bored piles. The reinforced concrete cantilever slab is anchored to the cap beam.

2. The high embankment flood-prone retaining wall around an existing road site as described in claim 1, characterized in that, It also includes multiple intermittently drilled cast-in-place piles, which are located between the multiple drilled cast-in-place piles in the outer row. The number of intermittently drilled cast-in-place piles between two adjacent drilled cast-in-place piles is at least one, and the insertion depth of the intermittently drilled cast-in-place piles is less than the insertion depth of the drilled cast-in-place piles.

3. The high embankment flood-prone retaining wall around an existing road site as described in claim 2, characterized in that, The bottom end of the intermittently drilled cast-in-place pile passes through the silt layer to a relatively stable soil layer. The depth of the intermittently drilled cast-in-place pile below the ground is defined as h, and the depth of the drilled cast-in-place pile below the ground is defined as H. Then 1 / 2 < h / H < 1.

4. The high embankment flood-prone retaining wall surrounding an existing road site according to any one of claims 1-3, characterized in that, It also includes multiple drainage pipes, which are installed between multiple drilled piles in the outer row. The water inlet end of the drainage pipe extends into the soil foundation between the two rows of drilled piles. The drainage pipe is a PVC drainage pipe with a slope ratio of 10%.

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