CN210946536U - Protective structure of small dangerous rock falling stone - Google Patents
Protective structure of small dangerous rock falling stone Download PDFInfo
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- CN210946536U CN210946536U CN201920788155.4U CN201920788155U CN210946536U CN 210946536 U CN210946536 U CN 210946536U CN 201920788155 U CN201920788155 U CN 201920788155U CN 210946536 U CN210946536 U CN 210946536U
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Abstract
The utility model provides a protective structure of small-size dangerous rock falling stone, can effectively prevent the harm of side slope dangerous rock falling stone to buildings such as road bed, bridge, tunnel, and simple structure, construction convenience, and be favorable to reducing the cost of protection engineering. The reinforced concrete stone blocking wall is located on the bottom surface of the retaining wall foundation pit, the micro piles are longitudinally and transversely arranged on the bottom surface of the retaining wall foundation pit at intervals to form micro pile groups, the lower portions of the micro piles are anchored in the slope stabilized rock-soil layer, the upper portions of the micro piles extend upwards into the reinforced concrete stone blocking wall, and the elastic buffer layer is fixedly arranged on the side wall, close to the mountain, of the reinforced concrete stone blocking wall.
Description
Technical Field
The utility model relates to civil engineering, in particular to protective structure of small-size dangerous rock rockfall.
Background
The mountainous railway has complex terrain and geology, lines often run in great mountains, and particularly high-speed railways are limited by line trends and fields, the bridge-tunnel ratio is high, slope distribution at mountain-by-mountains road beds, tunnel entrances and exits and other places is wide, and geological disasters such as dangerous rocks, falling rocks, collapse and the like are easily formed under the common influence of natural disasters and engineering activities. The side slope rockfall has many places, high frequency and strong randomness, and the prevention is insufficient, thereby seriously threatening the construction and operation safety of mountain railways.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a protective structure of small-size dangerous rock falling rocks is provided, can prevent effectively that side slope dangerous rock falling rocks from to the harm of buildings such as road bed, bridge, tunnel, and simple structure, construction convenience, and be favorable to reducing the cost of protection engineering.
The utility model provides a technical scheme that its technical problem adopted as follows:
the utility model discloses a protective structure of small-size dangerous rock rockfall, characterized by: the reinforced concrete stone blocking wall is located on the bottom surface of the retaining wall foundation pit, the micro piles are longitudinally and transversely arranged on the bottom surface of the retaining wall foundation pit at intervals to form micro pile groups, the lower portions of the micro piles are anchored in the slope stabilized rock-soil layer, the upper portions of the micro piles extend upwards into the reinforced concrete stone blocking wall, and the elastic buffer layer is fixedly arranged on the side wall, close to the mountain, of the reinforced concrete stone blocking wall.
The utility model has the advantages that the reinforced concrete rockfall wall is arranged on the side slope in the dangerous rock rockfall area for stopping the dangerous rock rockfall and effectively preventing the side slope dangerous rock rockfall from harming the buildings such as the roadbed, the bridge, the tunnel and the like; the elastic buffer layer behind the reinforced concrete stone blocking wall directly bears the impact action of falling rocks, so that the impact force of the falling rocks on the wall body can be obviously reduced, and the impact energy is transferred and diffused to the reinforced concrete stone blocking wall body, thereby preventing the reinforced concrete stone blocking wall body from being directly impacted by the falling rocks, and greatly enhancing the impact resistance of a structural system; the foundation of the reinforced concrete stone blocking wall is reinforced through the miniature pile group, the upper part of the reinforced concrete stone blocking wall is fixedly connected with the reinforced concrete stone blocking wall except for increasing the bearing capacity and reducing the settlement amount of the foundation, and the stability and the falling rock impact resistance of the reinforced concrete stone blocking wall are greatly enhanced; simple structure, construction convenience, and be favorable to reducing the cost of protection engineering.
Drawings
The present specification includes the following two figures.
Fig. 1 is an elevation view of a protective structure for a small dangerous falling rock of the present invention;
fig. 2 is a plan view of a protective structure for a small dangerous falling rock of the present invention;
the figure shows the components, the part names and the corresponding marks: the reinforced concrete stone blocking wall comprises a reinforced concrete stone blocking wall 10, a micro pile 11, horizontal steel bars 12, a water drainage hole 13, an elastic buffer layer 20, a backfill body 21 and a retaining wall foundation pit J.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, the protective structure for small dangerous falling rocks of the present invention includes a reinforced concrete stone blocking wall 10, micro-piles 11, and an elastic buffer layer 20. The reinforced concrete stone blocking wall 10 is located on the bottom surface of the retaining wall foundation pit J and used for blocking dangerous rock falling rocks and effectively preventing the side slope dangerous rock falling rocks from damaging buildings such as roadbeds, bridges and tunnels. The miniature piles 11 are longitudinally and transversely arranged at intervals on the bottom surface of the retaining wall foundation pit J to form miniature pile groups, the lower parts of the miniature piles 11 are anchored in the slope stable rock-soil layer, the upper parts of the miniature piles extend upwards into the reinforced concrete stone blocking wall 10, the foundation of the reinforced concrete stone blocking wall 10 is reinforced through the miniature pile groups, the upper parts of the miniature piles are fixedly connected with the reinforced concrete stone blocking wall 10 except for increasing the bearing capacity and reducing the foundation settlement, and the stability and falling stone impact resistance of the reinforced concrete stone blocking wall are greatly enhanced. The elastic buffer layer 20 is fixedly arranged on the side wall of the reinforced concrete stone blocking wall 10 close to the mountain side, and the elastic buffer layer 20 directly bears the impact action of falling rocks, so that the impact force of the falling rocks on the wall body can be obviously reduced, and impact energy is transmitted and diffused to the wall body of the reinforced concrete stone blocking wall 10, so that the wall body of the reinforced concrete stone blocking wall 10 is prevented from being directly impacted by the falling rocks, and the impact resistance of a structural system is greatly enhanced.
Referring to fig. 1, horizontal reinforcing steel bars 12 are arranged on the outer side wall and the side wall of the mountain leaning side of the reinforced concrete stone blocking wall 10 at intervals in the vertical direction, each horizontal reinforcing steel bar 12 is bound and connected with the upper portion of the micro pile 11 on the same side, common soil is filled between the side wall of the mountain leaning side of the reinforced concrete stone blocking wall 10 and the side wall of the retaining wall foundation pit J to form a backfill body 21, water drainage holes 13 are arranged on the top surface of the backfill body 21 in the reinforced concrete stone blocking wall 10 at intervals in the longitudinal direction, and each water drainage hole 13 penetrates through the outer side wall and the side wall of the mountain leaning side. The water of the soil body behind the wall is drained through the drainage holes 13, the ground water infiltration is prevented, the accumulated water behind the wall is prevented from forming hydrostatic pressure, and the expansion pressure of the cohesive soil filler after the water is invaded is eliminated.
Referring to fig. 1, the elastic buffer layer 20 is made of an elastic rubber material, and in order to reduce the construction cost, waste tires are generally used and fixed on the side wall of the reinforced concrete stone barrier 10 close to the mountain.
Referring to fig. 1, firstly, excavating a retaining wall foundation pit J in sections, constructing a drilled hole of a micro pile 11 after excavating the retaining wall foundation pit J, placing a micro pile reinforcing steel bar after emptying, binding a horizontal reinforcing steel bar 12 after grouting, pre-embedding a PVC pipe of a formed drainage hole 13, and erecting a formwork to pour a reinforced concrete stone blocking wall 10 at one time. And (3) removing the template after the wall strength reaches 70%, backfilling common soil in the retaining wall foundation pit J to form a backfilling body 21, and hanging waste tires on the back of the wall to form an elastic buffer layer 20.
The foregoing merely illustrates the general construction of the invention. All modifications, equivalents, and improvements made within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (4)
1. The utility model provides a protective structure of small-size dangerous rock rockfall, characterized by: the reinforced concrete stone blocking wall comprises a reinforced concrete stone blocking wall (10), micro piles (11) and an elastic buffer layer (20), wherein the reinforced concrete stone blocking wall (10) is located on the bottom surface of a retaining wall foundation pit (J), the micro piles (11) are longitudinally and transversely arranged on the bottom surface of the retaining wall foundation pit (J) at intervals to form micro pile groups, the lower parts of the micro piles (11) are anchored in a slope stabilizing rock-soil layer, the upper parts of the micro piles upwards extend into the reinforced concrete stone blocking wall (10), and the elastic buffer layer (20) is fixedly arranged on the side wall, close to the mountain, of the reinforced concrete stone blocking wall (10).
2. The protective structure for small dangerous falling rocks according to claim 1, characterized in that: horizontal steel bars (12) are arranged at inner vertical intervals of the outer side wall and the side wall of the backer of the reinforced concrete stone blocking wall (10), and each horizontal steel bar (12) is bound and connected with the upper part of the mini-pile (11) on the same side.
3. The protective structure for small dangerous falling rocks according to claim 1, characterized in that: ordinary soil is filled between reinforced concrete stone blocking wall (10) backer side lateral wall and barricade foundation ditch (J) lateral wall and forms backfill body (21), sets up outlet (13) along longitudinal separation on this backfill body (21) top surface in reinforced concrete stone blocking wall (10), and each outlet (13) link up outer wall, backer side lateral wall of reinforced concrete stone blocking wall (10).
4. The protective structure for small dangerous falling rocks according to claim 1, characterized in that: the elastic buffer layer (20) is a waste tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920788155.4U CN210946536U (en) | 2019-05-28 | 2019-05-28 | Protective structure of small dangerous rock falling stone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920788155.4U CN210946536U (en) | 2019-05-28 | 2019-05-28 | Protective structure of small dangerous rock falling stone |
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| Publication Number | Publication Date |
|---|---|
| CN210946536U true CN210946536U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920788155.4U Active CN210946536U (en) | 2019-05-28 | 2019-05-28 | Protective structure of small dangerous rock falling stone |
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| CN (1) | CN210946536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230273A (en) * | 2019-05-28 | 2019-09-13 | 中铁二院工程集团有限责任公司 | A kind of safeguard structure of small-sized rockfall |
| CN115637727A (en) * | 2022-10-24 | 2023-01-24 | 江苏科技大学 | Multi-stage wave-retaining seepage-proofing retaining wall and construction method thereof |
-
2019
- 2019-05-28 CN CN201920788155.4U patent/CN210946536U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230273A (en) * | 2019-05-28 | 2019-09-13 | 中铁二院工程集团有限责任公司 | A kind of safeguard structure of small-sized rockfall |
| CN115637727A (en) * | 2022-10-24 | 2023-01-24 | 江苏科技大学 | Multi-stage wave-retaining seepage-proofing retaining wall and construction method thereof |
| CN115637727B (en) * | 2022-10-24 | 2023-10-24 | 江苏科技大学 | Multistage wave-blocking seepage-proofing retaining wall and construction method thereof |
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