阅读说明：本技术 H型抗滑桩-桩板结构路基构造 (H-shaped anti-slide pile-pile plate structure roadbed structure ) 是由 胡金山 李肖伦 蒋关鲁 邵珠杰 田士军 袁胜洋 于基宁 何梓雷 候彦凯 于 2020-12-14 设计创作，主要内容包括：本发明涉及一种H型抗滑桩-桩板结构路基构造,所述构造包括H型抗滑桩,H型抗滑桩包括两侧竖直的抗滑桩、桩顶之间水平的横梁以及横梁顶部一侧竖直的拦石墙；横梁上方纵向铺设基础板,基础板底部与横梁之间设置有隔震支座,基础板侧面与拦石墙之间连接有横向的防屈曲支撑。本发明可以实现对高陡边坡的加固,对落石的拦截,减小地震及列车动荷载的影响,并可对路基本体结构运营后水平及垂直方向进行微调,从而提高其性价比并大大降低后期的运行维修成本。(The invention relates to an H-shaped slide-resistant pile-pile plate structure roadbed structure which comprises an H-shaped slide-resistant pile, wherein the H-shaped slide-resistant pile comprises slide-resistant piles, horizontal cross beams and stone blocking walls, the slide-resistant piles are vertical on two sides, the horizontal cross beams are arranged between pile tops, and one side of the top of each cross beam is vertical; the foundation plate is vertically laid above the cross beam, a shock insulation support is arranged between the bottom of the foundation plate and the cross beam, and a transverse buckling-restrained brace is connected between the side face of the foundation plate and the stone blocking wall. The invention can reinforce the high and steep slope, intercept falling rocks, reduce the influence of earthquake and dynamic load of trains, and finely adjust the horizontal and vertical directions of the operated road basic body structure, thereby improving the cost performance and greatly reducing the later operation and maintenance cost.)

H type friction pile-pile sheet structure roadbed structure, its characterized in that:

the structure comprises an H-shaped slide-resistant pile, wherein the H-shaped slide-resistant pile comprises slide-resistant piles (1) with two vertical sides, a horizontal cross beam (2) between pile tops and a stone blocking wall (3) with one vertical side of the top of the cross beam (2);

the foundation plate (6) is longitudinally laid above the cross beam (2), a shock insulation support (4) is arranged between the bottom of the foundation plate (6) and the cross beam (2), and a transverse buckling-restrained brace (5) is connected between the side face of the foundation plate (6) and the stone blocking wall (3).

2. The H-type slide-resistant pile-pile slab structure roadbed construction of claim 1, wherein:

the anti-slide piles (1) are longitudinally arranged in two rows, and the bottoms of the anti-slide piles penetrate into the bedrock (9);

a cross beam (2) is erected between pile tops of two transversely corresponding anti-slide piles (1), and a longitudinal stone blocking wall (3) is arranged at the top of one side, close to the side slope (10), of the cross beam (2).

3. The H-type slide-resistant pile-pile slab structure roadbed construction of claim 2, wherein:

the vertical main reinforcements in the anti-slide piles (1) upwards penetrate into the cross beams (2), and the vertical main reinforcements in the stone blocking walls (3) downwards penetrate into the cross beams (2) to form rigid connection.

4. The H-type slide-resistant pile-pile slab structure roadbed construction of claim 3, wherein:

the top parts of the two ends of the cross beam (2) are respectively provided with a shock insulation support (4), and the foundation plate (6) is laid above the shock insulation support (4).

5. The H-type slide-resistant pile-pile slab structure roadbed construction of claim 4, wherein:

the foundation plate (6) is provided with a transverse expansion joint (11) and a longitudinal expansion joint (12).

6. The H-type slide-resistant pile-pile plate structure roadbed construction of claim 5, wherein:

the transverse expansion joints (11) on the foundation plate (6) are arranged corresponding to the cross beams (2), and the longitudinal expansion joints (12) are arranged corresponding to the central line.

7. The H-type slide-resistant pile-pile slab structure roadbed construction of claim 6, wherein:

and a track plate (7) and a steel rail (8) are paved above the foundation plate (6).

8. The H-type slide-resistant pile-pile slab structure roadbed construction of claim 7, wherein:

a transverse sliding groove (13) is further arranged between the bottom of the foundation plate (6) and the cross beam (2) and is located between the shock insulation supports (4) on the two sides.

9. The H-type slide-resistant pile-pile slab structure roadbed construction of claim 8, wherein:

the sliding groove (13) comprises a sliding rail and a sliding block, the sliding rail is transversely arranged on the top surface of the cross beam (2), the cross section of the inner groove is inverted T-shaped, the sliding block is arranged on the bottom surface of the foundation plate (6) and is positioned in the sliding rail, and the cross section of the sliding block is inverted T-shaped.

10. The H-type slide-resistant pile-pile slab structure roadbed construction of claim 9, wherein:

the bottom of the inner groove of the slide rail is provided with a ball.

Technical Field

The invention relates to a railway roadbed structure, in particular to an H-shaped slide-resistant pile-pile plate structure roadbed structure.

Background

The southwest region of China is a mountainous region, the terrain in the region is steep, the geological structure is complex, the seismic intensity is high, and adverse geological development such as landslides, rock piles, dangerous rocks and rockfall occurs. With the rapid development of railway networks in China and the influence of conditions such as terrain geology, comprehensive route selection and the like, a considerable number of routes inevitably need to cross the areas. In the process of designing related lines, high and steep slope reinforcement, dangerous rockfall protection and seismic reinforcement design of related structures need to be comprehensively considered so as to ensure the safety and comfort of line operation.

In the existing design process, the high and steep slope reinforcement adopts an anti-slide pile, which is an anti-slide structure for transmitting the landslide thrust to a stable stratum by means of the combined action of the pile and the surrounding rock-soil body, and the anti-slide pile is arranged at the upper part or the lower part of a slope body according to the terrain and geological conditions of the slope body; the protective measures of dangerous rock falling are usually passive protection and active protection, wherein the stone blocking wall is widely used and is designed according to the maximum impact energy of falling rocks, the height, the thickness and the foundation burial depth of the stone blocking wall are designed and are usually arranged on one side of a circuit close to a side slope; the roadbed body is constructed in a form of a embankment or cutting according to the designed height of the line. In a high-intensity earthquake area, three structures (anti-slide piles, stone blocking walls and a roadbed body) need to be subjected to earthquake-resistant reinforcement design, and if the high-steep slope reinforcement, the dangerous rock falling protection and the roadbed body can be combined to form a single structure, the cost performance of the structure can be greatly improved.

Disclosure of Invention

The invention aims to provide an H-shaped anti-slide pile-pile plate structure roadbed structure which can reinforce a high and steep slope, intercept falling rocks, reduce the influence of earthquake and train dynamic load, and finely adjust the horizontal and vertical directions of a road basic body structure after operation, thereby improving the cost performance and greatly reducing the later operation and maintenance cost.

The technical scheme adopted by the invention is as follows:

h type friction pile-pile sheet structure road bed structure, its characterized in that:

the structure comprises an H-shaped slide-resistant pile, wherein the H-shaped slide-resistant pile comprises slide-resistant piles, horizontal cross beams and stone blocking walls, the slide-resistant piles are vertical to two sides of the H-shaped slide-resistant pile, the horizontal cross beams are arranged between pile tops, and one side of the top of each cross beam is vertical;

the foundation plate is vertically laid above the cross beam, a shock insulation support is arranged between the bottom of the foundation plate and the cross beam, and a transverse buckling-restrained brace is connected between the side face of the foundation plate and the stone blocking wall.

The anti-slide piles are longitudinally arranged in two rows, and the bottoms of the anti-slide piles penetrate into bedrock;

and a cross beam is erected between the pile tops of the two transversely corresponding anti-slide piles, and the top of one side of the cross beam, which is close to the side slope, is provided with a longitudinal stone blocking wall.

The vertical main reinforcement in the anti-slide pile extends upwards into the cross beam, and the vertical main reinforcement in the stone blocking wall extends downwards into the cross beam to form rigid connection.

The tops of two ends of the cross beam are respectively provided with a shock insulation support, and the foundation plate is laid above the shock insulation supports.

The foundation plate is provided with a transverse expansion joint and a longitudinal expansion joint.

The horizontal expansion joint on the foundatin plate corresponds the crossbeam setting, and the longitudinal expansion joint corresponds the central line setting.

And a track plate and a steel rail are laid above the foundation plate.

And a transverse sliding groove is also arranged between the bottom of the foundation plate and the cross beam and is positioned between the two side shock insulation supports.

The spout includes slide rail and slider, and the slide rail transversely sets up at the crossbeam top surface, and the transversal shape of personally submitting of inside groove is turned over T, and the slider setting is located the slide rail in foundatin plate bottom surface, and transversal personally submits the shape of turning over T.

The bottom of the inner groove of the slide rail is provided with a ball.

The invention has the following advantages:

1) the high and steep side slope is reinforced through the anti-slide piles, and the stability of the high and steep side slope is enhanced;

2) the H-shaped anti-slide piles are used as the foundation of the stone blocking wall and used for blocking falling rocks generated at the upper part of the side slope in the line operation process or earthquake;

3) the influence on the upper roadbed body during earthquake is reduced through the buckling-restrained brace, the influence on the H-shaped anti-skidding pile caused by dynamic load of the train is reduced through the height-adjustable shock-insulation rubber support, and fine adjustment in the horizontal and vertical directions of the road basic body structure in operation is realized. The buckling-restrained brace can overcome the defect that the difference of the tension-pressure bearing capacity of a common brace is obvious, has the energy consumption capacity of a metal damper and is the perfect combination of a support component and the energy consumption damper; the height-adjustable shock insulation rubber support can finely adjust the height of the foundation plate.

4) The spout sets up and is used for allowing foundatin plate and crossbeam to produce relative displacement in the earthquake, reduces the influence of seismic action to upper portion road bed body.

Therefore, the structure has the advantages of high strength, good stability, high rigidity and good seismic performance.

Drawings

FIG. 1 is a schematic cross-sectional view of a configuration of the present invention;

FIG. 2 is a schematic longitudinal section of a construction of the present invention;

FIG. 3 is a schematic view of an expansion joint constructed according to the present invention;

FIG. 4 is a schematic view of a chute constructed in accordance with the present invention;

reference numerals:

1. anti-slide piles; 2. a cross beam; 3. a stone blocking wall; 4. a shock insulation support; 5. a buckling restrained brace; 6. a foundation plate; 7. a track plate; 8. A steel rail; 9. bedrock; 10. side slope; 11. a transverse expansion joint; 12. a longitudinal expansion joint; 13. a chute.

Detailed Description

The present invention will be described in detail with reference to specific embodiments.

The invention relates to an H-shaped anti-slide pile-pile plate structure roadbed structure which comprises an H-shaped anti-slide pile, wherein the H-shaped anti-slide pile comprises anti-slide piles 1 with two vertical sides, a horizontal cross beam 2 between pile tops and a stone blocking wall 3 with one vertical side of the top of the cross beam 2; a foundation plate 6 is longitudinally paved above the cross beam 2, and a track plate 7 and a steel rail 8 are paved above the foundation plate 6. A shock insulation support 4 is arranged between the bottom of the foundation plate 6 and the cross beam 2, and a transverse buckling-restrained brace 5 is connected between the side face of the foundation plate 6 and the stone blocking wall 3.

The anti-slide piles 1 are longitudinally arranged in two rows, and the bottoms of the anti-slide piles penetrate into the bedrock 9; a cross beam 2 is erected between pile tops of two transversely corresponding anti-slide piles 1, and a longitudinal stone blocking wall 3 is arranged at the top of one side, close to the side slope 10, of the cross beam 2. The cross beam 2, the anti-slide pile 1 and the stone blocking wall 3 are all poured by adopting reinforced concrete, the vertical main reinforcement in the anti-slide pile 1 upwards extends into the cross beam 2, and the vertical main reinforcement in the stone blocking wall 3 downwards extends into the cross beam 2 to form rigid connection. Anti-cutting measures such as reinforcing mesh, shear-resistant bent bars, encrypted stirrups and the like are arranged at the rigid connection positions of the cross beams 2, the stone blocking walls 3 and the anti-slide piles 1. And (3) when the construction of the drilling slide-resistant pile 1 is finished and the strength of concrete reaches more than 80%, treating the pile head to ensure the quality of the pile head.

The tops of two ends of the cross beam 2 are respectively provided with a shock insulation support 4, and the foundation plate 6 is laid above the shock insulation supports 4.

The foundation plate 6 is provided with a transverse expansion joint 11 and a longitudinal expansion joint 12. The transverse expansion joint 11 on the foundation plate 6 is arranged corresponding to the cross beam 2, and the longitudinal expansion joint 12 is arranged corresponding to the central line.

And a transverse sliding groove 13 is also arranged between the bottom of the foundation plate 6 and the cross beam 2 and is positioned between the two side shock insulation supports 4. The spout 13 includes slide rail and slider, and the slide rail transversely sets up at 2 top surfaces of crossbeam, and the inside groove cross section is the shape of falling T, and the slider setting is in 6 bottom surfaces of foundatin plate, is located the slide rail, and the cross section is the shape of falling T. The bottom of the inner groove of the slide rail is provided with a ball.

The shock absorption and isolation system comprises the shock absorption and isolation support 4, the buckling-restrained brace 5 and the sliding groove 13. The shock insulation support 4 is a shock insulation rubber support with adjustable height and responds to vertical displacement; the buckling restrained brace 5 and the sliding groove 13 respond to the lateral displacement.

The lines on the foundation plate 6 can be divided into a single line type, a double line type and a multi line type, and when the double line type and the multi line type are adopted, a transverse expansion joint 12 (1 cm) between the bearing plates and a longitudinal expansion joint 11 (2 cm) between the bearing plates should be arranged.

The H-shaped anti-slide pile is used for reinforcing the high and steep slope, so that the stability of the high and steep slope is improved; a stone blocking wall 3 is constructed based on H-shaped anti-slide piles to block falling stones, and the shock resistance of the structural system is enhanced by using a shock absorption and isolation system. The structure can meet the operation requirements of the line in high earthquake intensity and high and steep side slope regions, and the high side slope body reinforcement, the dangerous rock falling rock protection and the roadbed body are combined together, so that the cost performance of the road can be greatly improved.

The invention is not limited to the examples, and any equivalent changes to the technical solution of the invention by a person skilled in the art after reading the description of the invention are covered by the claims of the invention.