A slope support structure capable of consuming energy and reducing shock and a construction method thereof

Abstract

The present invention discloses a slope support structure capable of consuming energy and reducing shock, and its construction method, which belongs to the field of retaining engineering. The slope support structure includes anti-sliding piles, slope beams, connecting beams, foam concrete cushions, anchor rods, dampers and cross-shock absorbing devices. The anti-sliding piles are arranged on the side near the river valley, and a damper is connected between two adjacent anti-sliding piles; the slope beams are arranged on the slope surface above the anti-sliding piles according to the slope angle, and are connected to the anti-sliding piles through connecting beams, and anchor rods are arranged at the upper and lower ends of the slope beams respectively; a damper and a cross-shock absorbing device are connected between two adjacent slope beams; and the foam concrete cushion is arranged at the bottom of the slope beams. The present invention has high bearing capacity and reasonable space utilization; under the action of static force, the anti-sliding piles, slope beams and anchor rods are jointly supported; when dynamic loads come, the foam concrete cushions, dampers and cross-shock absorbing devices play a role in consuming energy and reducing shock; after the dynamic load disappears, the structure resets itself, effectively reducing the damage caused to the structure by the dynamic load.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering support, and in particular to a slope support structure capable of consuming energy and reducing shock and a construction method thereof, which is suitable for slope support engineering. Background Art

[0002] In some earthquake-prone areas, high slopes produce dynamic responses under the action of seismic loads, the original structure of the soil is destroyed, its safety factor is greatly reduced, and major geological disasters such as collapse and landslides are prone to occur. The slope support technology currently used mainly provides a greater support reaction force by increasing the stiffness or bending inertia moment of the support structure, and cannot actively consume the dynamic load. As a result, the existing slope support structure frequently loses stability under earthquakes. Summary of the invention

[0003] The object of the present invention is to provide a slope support structure capable of consuming energy and reducing shock, so as to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides a slope support structure capable of consuming energy and reducing shock, comprising anti-sliding piles, slope beams, connecting beams, foam concrete cushions, anchor rods, dampers and cross shock absorbing devices, wherein the slope beams are at least two arranged at intervals along the extension direction of the slope, the bottom of each of the slope beams is provided with a foam concrete cushion, anti-sliding piles are respectively provided near the lower end of each of the slope beams, each of the anti-sliding piles is connected to the corresponding slope beam via a connecting beam provided at the top thereof, and anchor rods are respectively provided at the upper and lower ends of the slope beams. Rod, one end of the anchor rod passes through the slope beam and the foam concrete cushion layer and is driven into the stable soil layer, the other end of the anchor rod is anchored on the top surface of the slope beam, the upper parts and lower parts of two adjacent slope beams and the two adjacent anti-slide piles are connected by dampers, and a cross shock-absorbing device is also arranged between two adjacent slope beams, the upper ends of the cross shock-absorbing device are respectively connected to the upper parts of the two adjacent slope beams, and the lower ends of the cross shock-absorbing device are respectively connected to the lower parts of the two adjacent slope beams. When dynamic loads come, the above-mentioned support structure can play a good role in energy dissipation and shock absorption, and together form a slope support structure that can dissipate energy and reduce shock.

[0005] Furthermore, the damper includes a telescopic casing, a spring A and a fluid damper, the two ends of the telescopic casing are respectively connected to the anti-slip pile or the slope beam through a pin head A, the telescopic casing is formed by a first cylinder and a second cylinder that are nested and connected to each other, one end of the first cylinder is nested in the second cylinder, the spring A is arranged in the second cylinder, the two ends of the spring A are respectively connected to the first cylinder and the second cylinder, and the fluid damper is arranged in the spring A.

[0006] Furthermore, the fluid damper includes a piston A, a piston rod and a hydraulic oil chamber, the piston A is provided with a plurality of piston holes, one end of the piston rod is connected to the piston A, and the other end of the piston rod is connected to the first cylinder, and the hydraulic oil chamber is filled with viscous liquid.

[0007] Furthermore, the cross shock absorbing device includes an oil storage cylinder, and a shock absorbing unit is arranged on each of the four sides of the oil storage cylinder. Each of the shock absorbing units includes a connecting rod, a spring B, a piston B, a working cylinder and a base. One end of the connecting rod is provided with a pin head B for connecting to the slope beam, and the other end of the connecting rod is inserted into the working cylinder and connected to the piston B. The piston B divides the working cylinder into a first chamber and a second chamber that are independent of each other. The first chamber is filled with compressible nitrogen or liquid nitrogen, and the second chamber is filled with hydraulic oil. The second chamber partially extends into the oil storage cylinder, and the flow of hydraulic oil between the working cylinder and the oil storage cylinder is realized through the base.

[0008] Furthermore, an annular connecting plate is sleeved on the top of the anti-slip pile, and the annular connecting plate is composed of two semicircular steel plates with wing plates, and at least one of the semicircular steel plates is provided with a connecting pin seat A for connecting to the damper.

[0009] Furthermore, at least one connecting hole is provided on the wing plates on both sides of the semicircular steel plate, and the two semicircular steel plates are fixed on the anti-slip piles by pins passing through the connecting holes; an annular rubber pad is provided between the annular connecting plate and the anti-slip piles.

[0010] Furthermore, two U-shaped connecting plates are installed on each of the slope beams, and the U-shaped connecting plates are provided with at least two connecting pin seats B for connecting with the cross damping device; and a U-shaped rubber pad is provided between the U-shaped connecting plate and the slope beam.

[0011] Furthermore, the foam concrete cushion layer is arranged to be equal in length to the slope beam, the thickness of the foam concrete cushion layer is 1.5 to 2 times the side length of the cross section of the slope beam, and the width of the foam concrete cushion layer is 2 to 5 times the side length of the cross section of the slope beam.

[0012] Furthermore, the steel bars of the connecting beam are overlapped with the reserved steel bars at the top of the anti-sliding pile and the steel bars of the slope beam respectively.

[0013] Furthermore, anchor holes for the anchor rods to pass through are preset at the upper and lower ends of the slope beam, the cross section of the slope beam is square, and the side length of the cross section of the slope beam is equal to the diameter of the anti-slip pile.

[0014] The present invention also provides a construction method of a slope support structure capable of consuming energy and reducing shock, comprising the following steps:

[0015] Step 1, making dampers and cross damping devices: determine the size and quantity of the required dampers and cross damping devices according to the engineering design requirements, and assemble the corresponding number of dampers and cross damping devices according to the design requirements;

[0016] Step 2: Making an annular connecting plate and a U-shaped connecting plate;

[0017] Step 3: According to the engineering design requirements, the top of the first-level slope is processed into a horizontal platform; and the slope surface above the horizontal platform is leveled;

[0018] Step 4: Positioning: Use measuring instruments to locate the anti-slide piles, slope beams, foam concrete cushions and anchor bolts on the slope;

[0019] Step 5: according to the anti-sliding pile construction position provided in step 3, a hole is drilled mechanically on a horizontal platform, after the hole is formed, the prepared steel cage is hoisted by a crane and placed into the drilled pile hole, and concrete is poured with a conduit. The concrete pouring process shall not be interrupted, and vibration shall be continuously performed during the pouring process;

[0020] Step 6: According to the foam concrete cushion construction position provided in step 3, a space of a certain depth is excavated downward from the upslope surface on a horizontal platform according to the engineering design requirements, and a foam concrete cushion is laid at the excavation;

[0021] Step 7: Cast the slope beam at the center of the upper surface of the foam concrete cushion layer;

[0022] Step 8: construct the connecting beam, and overlap the steel bars of the connecting beam with the reserved steel bars at the top of the anti-slide pile and the steel bars of the slope beam;

[0023] Step 9: After the quality of the slope beam meets the requirements, the anchor rod is constructed. The drilling machine drills holes through the anchor rod through holes reserved on the slope beam according to the design requirements. After the drilling is completed, the anchor rod is placed into the drilled hole through the anchor rod through hole, and the anchoring section of the anchor rod is grouted. When the grout strength reaches the design requirements, the free section is fixed to the upper surface of the slope beam by using an anchor.

[0024] Step 10, dampers are installed between the upper parts and lower parts of two adjacent slope beams and between two adjacent anti-slide piles, and a cross shock-absorbing device is installed between two adjacent slope beams; finally, the construction of the slope support structure is completed.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The slope support structure of the present invention includes anti-sliding piles, slope beams, connecting beams, foam concrete cushions, anchor rods, dampers and cross-shock absorbing devices. The anti-sliding piles are arranged on the side closer to the river valley than the slope beams. A damper is connected between two adjacent anti-sliding piles. A damper is connected between two adjacent anti-sliding piles. The slope beams are arranged on the slope surface above the anti-sliding piles according to the slope angle, and are connected to the anti-sliding piles through connecting beams. Anchor rods are arranged at the upper and lower ends of the slope beams respectively. A damper and a cross-shock absorbing device are connected between two adjacent slope beams. The foam concrete cushion is arranged at the bottom of the slope beams. The slope support structure of the present invention has high bearing capacity and reasonable space utilization. Under the action of static force, the anti-sliding piles, slope beams and anchor rods are jointly supported. When dynamic loads come, the foam concrete cushions, dampers and cross-shock absorbing devices play a role in energy dissipation and shock absorption. After the dynamic load disappears, the structure resets itself, effectively reducing the damage to the structure caused by the dynamic load. The details are as follows:

[0027] (1) Support and anchoring: The anti-slide piles, slope beams, connecting beams, and anchor rods together form a support system that supports the horizontal soil pressure and can effectively improve the support effect. The free section of the anchor rod is fixed on the upper surface of the slope beam, and the anchor section is driven into the stable soil layer to provide anchor tension to the support structure toward the stable soil, thereby increasing the stability of the slope; the connection between the anti-slide piles and the slope beams through the connecting beam enhances the integrity of the entire support structure.

[0028] (2) Energy dissipation and shock absorption: Under the action of static force, the damper and cross shock absorption device can participate in the support work. At this time, there is no relative displacement between the two adjacent anti-slip piles and slope beams, and the damper and cross shock absorption device do not work; when the dynamic load comes, there is a relative displacement between the two adjacent piles and beams. The greater the dynamic load, the greater the displacement difference. At this time, the damper, cross shock absorption device and foam concrete cushion layer begin to play a role and absorb energy, achieving the effect of energy dissipation and shock absorption. In addition, a single damper and cross shock absorption device can be freely extended and retracted, which better ensures the stability of the anti-slip piles and slope beams.

[0029] (3) Recoverable: After the dynamic load disappears, the damper and cross-shock absorber stop working and return to their initial position, more effectively reducing the damage caused by the dynamic load to the structure.

[0030] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:

[0032] Figure 1A schematic diagram of an application scenario of a slope support structure according to one or more embodiments of the present invention;

[0033] Figure 2 A schematic diagram of the connection structure of the anti-slip pile and the damper according to one or more embodiments of the present invention;

[0034] Figure 3 A schematic diagram of the connection structure of a slope beam damper and a cross damping device according to one or more embodiments of the present invention;

[0035] Figure 4A A schematic structural diagram of a semicircular steel plate (without a connecting pin seat) according to one or more embodiments of the present invention;

[0036] Figure 4B for Figure 4A A front view of the semicircular steel plate shown;

[0037] Figure 5A A schematic structural diagram of another semicircular steel plate (with a connecting pin seat) according to one or more embodiments of the present invention;

[0038] Figure 5B for Figure 5A A front view of the semicircular steel plate shown;

[0039] Figure 5C for Figure 5A A right side view of the semicircular steel plate shown;

[0040] Figure 6 A schematic structural diagram of a U-shaped connecting plate (with two connecting pin seats) according to one or more embodiments of the present invention;

[0041] Figure 7 A schematic structural diagram of another U-shaped connecting plate (having four connecting pin seats) according to one or more embodiments of the present invention;

[0042] Figure 8 A schematic diagram of the main structure of a damper according to one or more embodiments of the present invention;

[0043] Fig. 9 A schematic diagram of the internal structure of a damper according to one or more embodiments of the present invention;

[0044] Fig.10 A schematic diagram of the three-dimensional structure of a cross shock absorbing device according to one or more embodiments of the present invention;

[0045] Fig.11 A schematic diagram of the internal structure of another cross damping device according to one or more embodiments of the present invention;

[0046] Among them, 1-anti-slide pile, 2-slope beam, 3-connecting beam, 4-foam concrete cushion, 5-anchor rod, 6-damper, 6.1-telescopic casing, 6.11-first cylinder, 6.12-second cylinder, 6.2-spring A, 6.3-fluid damper, 6.31-piston A, 6.32-piston rod, 6.34-hydraulic oil chamber, 6.35-piston hole, 6.4-pin head A, 7-cross shock absorbing device, 7.1-connecting rod, 7.11-pin head B, 7.2 -Spring B, 7.3-Piston B, 7.4-Working cylinder, 7.41-First chamber, 7.42-Second chamber, 7.5-Base, 7.6-Oil storage cylinder, 8-Anchor rod through hole, 9-Annular connecting plate, 9.1-Semicircular steel plate, 9.2-Connecting hole, 9.3-Pin shaft, 9.4-Connecting pin seat A, 9.5-Annular rubber pad, 10-U-shaped connecting plate, 10.1-Horizontal connecting pin seat, 10.2-Oblique connecting pin seat, 10.3-U-shaped rubber pad. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0048] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should be understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] like Figure 1 As shown, a slope support structure capable of consuming energy and reducing shock in this embodiment includes anti-sliding piles 1, slope beams 2, connecting beams 3, foam concrete cushions 4, anchor rods 5, dampers 6 and cross shock absorbing devices 7, and the specific structure is as follows:

[0050] The slope beams 2 are a number of beams arranged at intervals along the extension direction of the slope. The slope beams are set on the slope above the anti-sliding piles according to the slope angle. A foam concrete cushion layer 4 is set at the bottom of each slope beam 2. Anti-sliding piles 1 are respectively set near the lower end of each slope beam 2 and on the horizontal platform (that is, the anti-sliding piles are set on the side closer to the river valley than the slope beams). A connecting beam 3 is set on the top of each anti-sliding pile 1. The steel bars of the connecting beam 3 are overlapped with the reserved steel bars at the top of the anti-sliding pile 1 and the steel bars of the slope beam 2, respectively. Therefore, all anti-sliding piles 1 are connected to the corresponding slope beams 2 through the connecting beams 3 set at their tops. An anchor rod 5 is respectively arranged at the upper and lower ends of the slope beam 2, one end of the anchor rod 5 passes through the slope beam 2 and the foam concrete cushion layer 4 and is driven into the stable soil layer, and the other end of the anchor rod 5 is anchored on the top surface of the slope beam 2, and the upper parts and lower parts of two adjacent slope beams 2 and the two adjacent anti-slip piles 1 are connected respectively through dampers 6, and a cross shock-absorbing device 7 is also arranged between the two adjacent slope beams 2, and the upper ends of the cross shock-absorbing device 7 are respectively connected to the upper parts of the two adjacent slope beams 2, and the lower ends of the cross shock-absorbing device 7 are respectively connected to the lower parts of the two adjacent slope beams 2.

[0051] In a specific embodiment, the top of the first-level slope is processed into a horizontal platform, pile holes are drilled on the horizontal platform, and anti-slip piles 1 are installed in the drilled pile holes; the design scheme of the anti-slip piles 1 is determined according to the size of the horizontal platform, including the number of anti-slip piles, pile spacing, pile diameter and pile length of the anti-slip piles, etc. A foam concrete cushion layer 4 is laid on the slope above the horizontal platform, and the position and parameters of the foam concrete cushion layer 4 are determined according to the size and position of the anti-slip piles 1 and the slope beam 2. The slope beam 2 is cast on the surface of the foam concrete cushion layer 4, and the slope beam 2 and the anti-slip pile 1 are connected by a connecting beam 3; preferably, the cross-section of the slope beam 2 is square, the cross-section side length of the slope beam 2 is equal to the diameter of the anti-slip pile 1, the slope beam 2 and the foam concrete cushion layer 4 are set to be equal in length, and the thickness of the foam concrete cushion layer 4 is 1.5 to 2 times the cross-section side length of the slope beam 2, and the width is 2 to 5 times the cross-section side length of the slope beam 2; more preferably, the width is 3 times the cross-section side length of the slope beam 2. Each two adjacent slope beams 2 are connected by a damper 6 and a cross damping device 7. A circular anchor hole 8 is reserved at the upper and lower ends of each slope beam 2. One end of the anchor 5 passes through the anchor hole 8 and is driven into the stable soil layer, and the other end is anchored on the top surface of the slope beam 2. When subjected to an earthquake, the entire slope support structure of this embodiment is subjected to force in a coordinated manner, dispersing and consuming the energy generated by the external force, and has good earthquake resistance.

[0052] like Figure 2As shown, two adjacent anti-slip piles 1 are connected via a damper 6, and an annular connecting plate 9 is installed on the top of each anti-slip pile 1, and an annular rubber pad 9.5 is arranged between the annular connecting plate and the anti-slip pile. Specifically, the annular connecting plate 9 is formed by two prefabricated semicircular steel plates 9.1 with wing plates, and two connecting holes 9.2 are arranged on the two side wing plates of each semicircular steel plate; the two semicircular steel plates are fixed to the upper part of the anti-slip pile by a pin shaft 9.3 penetrating the connecting hole 9.2. At the same time, in order to facilitate the connection with the damper, a connecting pin seat A9.4 for connecting to the damper 6 is arranged on at least one semicircular steel plate 9.1. Combined with Figure 4A , Figure 4B , Figure 5A , Figure 5B as well as Figure 5C As shown, Figure 4A and Figure 4B A semicircular steel plate without a connecting pin seat A is shown. FIG. 5A to FIG. 5C A semicircular steel plate with a connecting pin seat A is shown. For the anti-slip piles located on both sides, a semicircular steel plate without a connecting pin seat A and a semicircular steel plate with a connecting pin seat A are selected to enclose an annular connecting plate 9. For the anti-slip piles located on the inner side, since both sides need to be connected to the damper 6, two semicircular steel plates with a connecting pin seat A are selected to enclose an annular connecting plate 9. The positions of the connecting pin seats A for connecting the damper of two adjacent anti-slip piles correspond to each other, so as to ensure that the force of the damper on the anti-slip pile is directly opposite to the central axis of the anti-slip pile, thereby ensuring that the force is not skewed.

[0053] Combination Figure 1 As shown, two U-shaped connecting plates 10 are installed on each slope beam 2, and each U-shaped connecting plate is provided with at least two connecting pin seats B for connecting with the cross damping device 7. Figure 6 As shown, for the U-shaped connecting plate on the slope beams on both sides, the U-shaped connecting plate is provided with a horizontal connecting pin seat 10.1 and an oblique connecting pin seat 10.2 on one side, the horizontal connecting pin seat is connected to the damper, and the oblique connecting pin seat is connected to the cross damping device. Figure 7 As shown, for the U-shaped connecting plate located on the inner slope beam, the U-shaped connecting plate has a horizontal connecting pin seat 10.1 and an oblique connecting pin seat 10.2 on both sides. Figure 3 As shown, the damper 6 is connected to the horizontal connection pin seats 10.1 on the two U-shaped connection plates through two pin heads A6.4 at its two ends, and the upper and lower ends of the cross damping device 7 are connected to the oblique connection pin seats 10.2 through pin heads B7.11. A U-shaped rubber pad 10.3 is provided between the U-shaped connection plate 10 and the slope beam 2.

[0054] like Figure 8 and Fig. 9As shown, the damper 6 includes a telescopic sleeve 6.1, a spring A6.2 and a fluid damper 6.3. The two ends of the telescopic sleeve 6.1 are respectively connected to the anti-slip pile 1 or the slope beam 2 through a pin head A6.4. The telescopic sleeve 6.1 is formed by a first cylinder 6.11 and a second cylinder 6.12 of different diameters being nested and connected with each other. The outer diameter of the first cylinder 6.11 is equal to the inner diameter of the second cylinder 6.12. The first cylinder 6.11 and the second cylinder 6.12 are circular steel pipes. One end of the first cylinder 6.11 is nested in the second cylinder 6.12, and the spring A6.2 is arranged in the second cylinder 6.12. The two ends of the spring A6.2 are respectively connected to the first cylinder 6.11 and the second cylinder 6.12. The outer diameter of the spring A6.2 is consistent with the outer diameter of the first cylinder 6.11. The fluid damper 6.3 is arranged in the spring A6.2, and its diameter is smaller than the inner diameter of the spring A6.2; the fluid damper 6.3 includes a piston A6.31, a piston rod 6.32 and a hydraulic oil chamber 6.34, a plurality of piston holes 6.35 are opened on the piston A6.31, one end of the piston rod 6.32 is connected to the piston A6.31, and the other end of the piston rod 6.32 is connected to the first cylinder 6.11, and the hydraulic oil chamber 6.34 is filled with viscous liquid.

[0055] like Fig.10 and Fig.11 As shown, the cross damping device 7 includes an oil storage cylinder 7.6, and a damping unit is arranged on each of the four sides of the oil storage cylinder 7.6. Each damping unit includes a connecting rod 7.1, a spring B7.2, a piston B7.3, a working cylinder 7.4 and a base 7.5. One end of the connecting rod 7.1 is provided with a pin head B7.11 for connecting with the slope beam 2. The other end of the connecting rod 7.1 is inserted into the working cylinder 7.4 and connected with the piston B7.3. The piston B7.3 divides the working cylinder 7.4 into a first chamber 7.41 and a second chamber 7.42 which are independent of each other. The first chamber 7.41 is filled with compressible nitrogen or liquid nitrogen, and the second chamber 7.42 is filled with hydraulic oil. The second chamber 7.42 partially extends into the oil storage cylinder 7.6, and the hydraulic oil flows between the working cylinder 7.4 and the oil storage cylinder 7.6 through the base 7.5. In this structural setting, the base 7.5 is obtained by purchase.

[0056] When piston B moves to the second chamber, the oil pressure in the second chamber begins to increase; when the pressure in the second chamber is greater than the bearing value of the base compression valve, the compression valve on the base will automatically open, and the hydraulic oil will flow to the oil storage cylinder. When piston B moves to the first chamber, the pressure in the second chamber slowly recovers, the pressure in the first chamber increases, the nitrogen or liquid nitrogen filled is compressed, the compression valve 7.51 on the base will automatically close, the rebound valve 7.52 on the base will automatically open, and the hydraulic oil in the oil storage cylinder will be drawn back. In this process, the compression valve and the rebound valve throttle the hydraulic oil to form damping. When the dynamic load comes, the four pistons B move up and down freely, and the up and down movement of the pistons B forms damping to consume the dynamic load.

[0057] A construction method of a slope support structure capable of consuming energy and reducing shock in an embodiment of the present invention comprises the following steps:

[0058] Step 1, making the damper 6 and the cross damping device 7: determining the size and quantity of the required damper 6 and the cross damping device 7 according to the engineering design requirements, and assembling the corresponding number of dampers 6 and the cross damping device 7 according to the design requirements;

[0059] Step 2: making an annular connecting plate 9 and a U-shaped connecting plate 10;

[0060] Step 3: According to the engineering design requirements, the top of the first-level slope is processed into a horizontal platform; and the slope surface above the horizontal platform is leveled;

[0061] Step 4: Positioning: using a measuring instrument to position the anti-slide pile 1, the slope beam 2, the foam concrete cushion 4 and the anchor rod 5 on the slope;

[0062] Step 5: according to the anti-sliding pile 1 construction position provided in step 3, a hole is drilled mechanically on a horizontal platform, after the hole is formed, the prepared steel cage is hoisted by a crane and placed into the drilled pile hole, and concrete is poured with a conduit. The concrete pouring process shall not be interrupted, and vibration shall be continuously performed during the pouring process;

[0063] Step 6: According to the construction location of the foam concrete cushion layer 4 provided in step 3, a space of a certain depth is excavated downward from the upslope surface on the horizontal platform according to the engineering design requirements, and the foam concrete cushion layer 4 is laid at the excavation;

[0064] Step 7: Cast the slope beam 2 at the center of the upper surface of the foam concrete cushion layer 4;

[0065] Step 8: construct the connecting beam 3, and overlap the steel bars of the connecting beam 3 with the reserved steel bars at the top of the anti-sliding pile 1 and the steel bars of the slope beam 2;

[0066] Step 9, after the quality of the slope beam 2 meets the requirements, the anchor rod 5 is constructed, and the drilling machine drills holes through the anchor rod through holes 8 reserved on the slope beam 2 according to the design requirements; after the drilling is completed, the anchor rod 5 is placed into the drilled hole through the anchor rod through holes 8, and the anchoring section of the anchor rod 5 is grouted. When the grout strength reaches the design requirements, the free section is fixed to the upper surface of the slope beam 2 by using an anchor;

[0067] Step 10: Install dampers 6 between the upper parts and lower parts of two adjacent slope beams 2 and between two adjacent anti-slide piles 1, and install a cross damping device 7 between two adjacent slope beams 2; finally, complete the construction of the slope support structure.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A slope support structure capable of consuming energy and reducing shock, characterized in that: The invention comprises an anti-sliding pile (1), a slope beam (2), a connecting beam (3), a foam concrete cushion layer (4), an anchor rod (5), a damper (6) and a cross shock absorbing device (7), wherein the slope beam (2) is at least two and arranged at intervals along the extension direction of the slope, the bottom of each slope beam (2) is provided with a foam concrete cushion layer (4), an anti-sliding pile (1) is correspondingly provided near the lower end of each slope beam (2), each anti-sliding pile (1) is connected to the corresponding slope beam (2) via a connecting beam (3) provided at the top thereof, and the upper and lower ends of the slope beam (2) are provided with anchor rods (5), and the anchor rods (5) are provided with a plurality of anchor rods. One end of the anchor rod (5) penetrates the slope beam (2) and the foam concrete cushion layer (4) and is driven into the stable soil layer; the other end of the anchor rod (5) is anchored on the top surface of the slope beam (2); the upper parts and lower parts of two adjacent slope beams (2) and the two adjacent anti-sliding piles (1) are connected via dampers (6), respectively; a cross damping device (7) is also provided between two adjacent slope beams (2); the upper ends of the cross damping device (7) are respectively connected to the upper parts of the two adjacent slope beams (2), and the lower ends of the cross damping device (7) are respectively connected to the lower parts of the two adjacent slope beams (2); The cross damping device (7) comprises an oil storage cylinder (7.6), each of the four sides of the oil storage cylinder (7.6) being provided with a damping unit, each of the damping units comprising a connecting rod (7.1), a spring B (7.2), a piston B (7.3), a working cylinder (7.4) and a base (7.5), one end of the connecting rod (7.1) being provided with a pin head B (7.11) for connecting with the slope beam (2), the other end of the connecting rod (7.1) being inserted into the working cylinder (7.4) and connected with the piston B (7.5). .3), the piston B (7.3) divides the working cylinder barrel (7.4) into a first chamber (7.41) and a second chamber (7.42) which are independent of each other, the first chamber (7.41) is filled with compressible nitrogen or liquid nitrogen, the second chamber (7.42) is filled with hydraulic oil, and the second chamber (7.42) partially extends into the oil storage cylinder barrel (7.6), and the flow of hydraulic oil between the working cylinder barrel (7.4) and the oil storage cylinder barrel (7.6) is realized through the base (7.5); When the piston B (7.3) moves toward the second chamber (7.42), the oil pressure in the second chamber (7.42) begins to increase; when the pressure in the second chamber (7.42) is greater than the bearing value of the compression valve (7.51) on the base (7.5), the compression valve (7.51) on the base (7.5) will automatically open, and the hydraulic oil will flow to the oil storage cylinder; when the piston B (7.3) moves toward the first chamber (7.41), the pressure in the second chamber (7.42) slowly recovers, the pressure in the first chamber (7.41) increases, the nitrogen or liquid nitrogen filled is compressed, the compression valve (7.51) on the base will automatically close, the rebound valve (7.52) on the base (7.5) will automatically open, and the hydraulic oil in the oil storage cylinder (7.6) will be drawn back; in this process, the compression valve (7.51) and the rebound valve (7.52) throttle the hydraulic oil to form damping; When a dynamic load comes, the four pistons B (7.3) all move freely up and down, and damping is formed by the up and down movement of the pistons B (7.3) to consume the dynamic load.

2. The slope support structure according to claim 1, characterized in that: The damper (6) comprises a telescopic sleeve (6.1), a spring A (6.2) and a fluid damper (6.3); the two ends of the telescopic sleeve (6.1) are respectively connected to the anti-sliding pile (1) or the slope beam (2) through a pin head A (6.4); the telescopic sleeve (6.1) is formed by a first cylinder (6.11) and a second cylinder (6.12) being nested and connected with each other; one end of the first cylinder (6.11) is nested in the second cylinder (6.12); the spring A (6.2) is arranged in the second cylinder (6.12); the two ends of the spring A (6.2) are respectively connected to the first cylinder (6.11) and the second cylinder (6.12); and the fluid damper (6.3) is arranged in the spring A (6.2).

3. The slope support structure according to claim 2, characterized in that: The fluid damper (6.3) comprises a piston A (6.31), a piston rod (6.32) and a hydraulic oil chamber (6.34); the piston A (6.31) is provided with a plurality of piston holes (6.35); one end of the piston rod (6.32) is connected to the piston A (6.31); the other end of the piston rod (6.32) is connected to the first cylinder (6.11); and the hydraulic oil chamber (6.34) is filled with viscous liquid.

4. The slope support structure according to claim 1, characterized in that: The anti-slip pile (1) is sleeved with an annular connecting plate (9), which is composed of two semicircular steel plates (9.1) with wing plates, and at least one of the semicircular steel plates (9.1) is provided with a connecting pin seat A (9.4) for connecting to the damper (6); at least one connecting hole (9.2) is provided on the wing plates on both sides of the semicircular steel plate (9.1), and the two semicircular steel plates (9.1) are fixed to the anti-slip pile (1) by means of a pin shaft (9.3) penetrating the connecting hole (9.2); an annular rubber pad (9.5) is provided between the annular connecting plate (9) and the anti-slip pile (1).

5. The slope support structure according to claim 4, characterized in that: Two U-shaped connecting plates (10) are installed on each of the slope beams (2), and the U-shaped connecting plates (10) are provided with at least two connecting pin seats B for connecting with the cross damping device (7); and a U-shaped rubber pad (10.3) is provided between the U-shaped connecting plates (10) and the slope beams (2).

6. The slope support structure according to claim 1, characterized in that: The foam concrete cushion layer (4) is arranged to be equal in length to the slope beam (2), the thickness of the foam concrete cushion layer (4) is 1.5 to 2 times the length of the side of the cross section of the slope beam (2), and the width of the foam concrete cushion layer (4) is 2 to 5 times the length of the side of the cross section of the slope beam (2).

7. The slope support structure according to claim 1, characterized in that: The steel bars of the connecting beam (3) are overlapped with the reserved steel bars at the top of the anti-sliding pile (1) and the steel bars of the slope beam (2) respectively.

8. The slope support structure according to claim 5, characterized in that: Anchor rod through holes (8) for the anchor rods (5) to pass through are preset at the upper and lower ends of the slope beam (2); the cross section of the slope beam (2) is square, and the side length of the cross section of the slope beam (2) is equal to the diameter of the anti-sliding pile (1).

9. A construction method of a slope support structure capable of consuming energy and reducing shock as claimed in claim 8, characterized in that: The following steps are involved: Step 1, manufacturing the damper (6) and the cross damping device (7): determining the size and quantity of the required damper (6) and the cross damping device (7) according to the engineering design requirements, and assembling the corresponding number of dampers (6) and the cross damping device (7) according to the design requirements; Step 2: making an annular connecting plate (9) and a U-shaped connecting plate (10); Step 3: According to the engineering design requirements, the top of the first-level slope is processed into a horizontal platform; and the slope surface above the horizontal platform is leveled; Step 4: Positioning: using a measuring instrument to position the anti-slide piles (1), the slope beam (2), the foam concrete cushion layer (4) and the anchor rods (5) on the slope; Step 5, according to the anti-sliding pile (1) construction position provided in step 3, drilling holes on a horizontal platform by mechanical drilling, after drilling, lifting the prepared steel cage by a crane and placing it into the drilled pile hole, pouring concrete by a guide tube, the pouring process of concrete shall not be interrupted, and the vibrating shall be continued during the pouring process; Step 6: According to the foam concrete cushion layer (4) application position provided in step 3, a space of a certain depth is excavated downward from the upslope surface on a horizontal platform according to the engineering design requirements, and the foam concrete cushion layer (4) is laid at the excavation site; Step 7, pouring the slope beam (2) at the center of the upper surface of the foam concrete cushion layer (4); Step 8, constructing the connecting beam (3), and overlapping the steel bars of the connecting beam (3) with the reserved steel bars at the top of the anti-sliding pile (1) and the steel bars of the slope beam (2); Step 9: After the quality of the slope beam (2) meets the requirements, the anchor rod (5) is constructed, and a drilling machine is used to drill holes through the anchor rod through holes (8) reserved on the slope beam (2) according to the design requirements; after the drilling is completed, the anchor rod (5) is placed into the drilled hole through the anchor rod through holes (8), and the anchoring section of the anchor rod (5) is grouted. When the grout strength reaches the design requirements, the free section is fixed to the upper surface of the slope beam (2) by using an anchor; Step 10, dampers (6) are respectively installed between the upper parts and lower parts of two adjacent slope beams (2) and between two adjacent anti-slip piles (1), and a cross damping device (7) is installed between two adjacent slope beams (2); finally, the construction of the slope support structure is completed.

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