CN108103867B - Shed tunnel type anti-skidding structure with road system and construction method - Google Patents
Shed tunnel type anti-skidding structure with road system and construction method Download PDFInfo
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- CN108103867B CN108103867B CN201810000388.3A CN201810000388A CN108103867B CN 108103867 B CN108103867 B CN 108103867B CN 201810000388 A CN201810000388 A CN 201810000388A CN 108103867 B CN108103867 B CN 108103867B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/002—Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
- E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
A shed tunnel type anti-skid structure with a road system and a construction method belong to the technical field of road engineering and comprise an anti-skid structure, a rectangular single-span groove type road panel, a plate wall and a shed surface protection structure; the anti-skid structure is H-shaped, one end of the cross beam is integrally cast with the variable cross section of the second type of variable cross section anti-skid pile below, and the other end face of the cross beam is connected with the pile body of the first type of variable cross section anti-skid pile above through unidirectional sliding connection; the plate wall above the slope body is clamped in the groove of the adjacent variable cross-section slide-resistant pile; the rectangular single-span groove type road panel is supported on the cross beam; the shed surface protection structure is elastically and rotatably connected with the anti-slide pile top. The invention not only avoids a large amount of earthwork projects when a road is built on the landslide body, but also solves the disturbance and harm of the landslide body to the road during operation; simple structure, safety and reliability, and good economic effect.
Description
Technical Field
The invention belongs to the technical field of road engineering, and particularly relates to a shed tunnel type anti-skidding structure technology with a road system.
Background
In the design of mountain road engineering, landslide sections are often encountered due to special terrain and geological environment. And the landslide with great harm is often selected by a scheme so as to reasonably take circumvention measures. However, if the bypassing cost is too large after the sufficient scheme selection, the landslide should be treated. In the prior art, roads are built in landslide areas, landslide is generally treated firstly, and measures such as landslide body clearing, surface water and underground water treatment, weight reduction and back pressure reduction, support structure arrangement and the like are mostly adopted for treating landslide. For large landslides, the treatment measures have large construction amount and high cost, and are not economical and reasonable. Thus, roads with anti-slide piles for treating landslides have emerged. The patent with the application number of 201620242141.9 discloses a cantilever structure road combined with h-shaped anti-slide piles for treating landslides, high filling and deep digging on a landslide body are avoided, and the filling and digging engineering quantity is greatly reduced. However, the road and the anti-slide piles are combined into a whole, and when the road surface is subjected to driving load, the anti-slide piles below the road can be disturbed, so that unstable soil layers on the landslide body are influenced, and the unstable soil layers slide. Such a road incorporating slide piles still has potential safety hazards. Moreover, the rolling stones on the landslide body can also have great influence on road traffic, harm the safety of personnel and cause economic loss.
Disclosure of Invention
The invention aims to provide a shed tunnel type anti-skidding structure with a road system and a construction method.
The invention relates to a shed tunnel type anti-skid structure with a road system and a construction method, wherein the shed tunnel type anti-skid structure with the road system comprises an anti-skid structure, a rectangular single-span groove type road panel 7, a plate wall 4 and a shed surface protection structure 8; the anti-skid structure is H-shaped and comprises a first variable cross-section anti-skid pile 1, a second variable cross-section anti-skid pile 2, a cross beam 3 and a unidirectional sliding connection 5, wherein the piles at the variable cross-section of the first variable cross-section anti-skid pile 1 are respectively provided with a groove 11 on two side surfaces vertical to the road direction, one end of the cross beam 3 is integrally cast with the variable cross-section of the second variable cross-section anti-skid pile 2, the other end surface of the cross beam is connected with the pile body of the first variable cross-section anti-skid pile 1 through the unidirectional sliding connection 5, and the bottom surface of the cross beam 3 and variable cross-section platforms of the first variable cross-section anti-skid pile 1 and the second variable cross-section anti-skid pile 2 are positioned on the same horizontal plane; the unidirectional sliding connection 5 is composed of steel plates 15, a tooth groove 16, a pawl column 17, a pawl 18 and rubber anti-collision blocks 19, the tooth groove 16 and the pawl column 17 are respectively connected to the center of one steel plate 15, the pawl column 17 is inserted into the tooth groove 16, the pawl 18 is matched and nested with the tooth groove 16, the front faces of the two rubber anti-collision blocks 19 are oppositely and respectively fixed on the two steel plates 15, the steel plate 15 connected with the tooth groove 16 is connected with the pile body of the first type variable cross-section anti-sliding pile 1, and the steel plate 15 connected with the pawl column 17 is connected with the center of the end face of the cross; the plate wall 4 comprises a top plate wall 26, a middle plate wall 27 and a bottom plate wall 28, wherein the mutually contacting surfaces of the three types of plate walls are respectively provided with a rectangular convex block 13 and a rectangular groove 14 along the longitudinal central line, the rectangular convex block 13 of the lower plate wall is embedded into the rectangular groove 14 of the upper plate wall, so that the three types of plate walls are mutually nested and assembled, and convex columns 12 at two ends of the plate wall 4 are inserted into the grooves 11 and are assembled and connected with the adjacent first type variable cross-section anti-slide piles 1; the rectangular single-span groove type road slab 7 is supported on the top surface of the cross beam 3 through a plate type rubber support 6; the shed surface protection structure 8 is composed of a field-shaped frame 21 and a steel wire protection net 22, wherein the field-shaped frame 21 is formed by welding profile steel, the steel wire protection net 22 is fixed on the top surface of a space of the field-shaped frame 21, the upper end of the shed surface protection structure 8 is welded with an embedded part 25 at the top of the first variable cross-section anti-slide pile 1 through a rotating hinged support 9, and the lower end of the shed surface protection structure is supported on the top of the second variable cross-section anti-slide pile 2 through a.
The invention discloses a construction method of a shed tunnel type anti-skidding structure with a road system, which comprises the following steps:
(1) and (3) surveying and designing: surveying the engineering geological conditions and the hydrological meteorological conditions of the mountain body, analyzing and determining the position of a potential sliding surface, calculating and designing, and determining the height and the spacing of piles;
(2) prefabricated panel wall 4: manufacturing the plate wall 4 in a factory according to the engineering design size, and conveying the plate wall to a construction site;
(3) constructing pile holes: determining the position of the slide-resistant pile according to the construction drawing, excavating pile holes of a first type of variable cross-section slide-resistant pile 1 and a second type of variable cross-section slide-resistant pile 2, and constructing a retaining wall;
(4) constructing a first type of variable cross-section slide-resistant pile 1: hoisting and placing an anti-slide pile reinforcement cage, and pouring a first type of variable cross-section anti-slide pile 1;
(5) and (3) constructing a second type variable cross-section slide-resistant pile 2: hoisting and placing an anti-slide pile reinforcement cage, pouring a second type of variable cross-section anti-slide pile 2, and reserving a cross beam 3 reinforcement at the variable cross section of the pile according to a construction drawing;
(6) and (3) constructing a plate wall 4: excavating earthwork between adjacent first-class variable-cross-section anti-slide piles 1, inserting a prefabricated bottom plate wall 28 into a groove 11 of the first-class variable-cross-section anti-slide pile 1, then installing an intermediate plate wall 27, enabling a rectangular bump 13 below the intermediate plate wall 27 to be tightly nested with a rectangular groove 14 of the bottom plate wall 28, and finally installing a top plate wall 26, and enabling the rectangular bump 13 below the top plate wall 26 to be tightly nested with the rectangular groove 14 of the intermediate plate wall 27;
(7) excavating earth: excavating earthwork between the first type variable cross-section slide-resistant pile 1 and the second type variable cross-section slide-resistant pile 2 to the variable cross-section of the variable cross-section slide-resistant pile;
(8) and (3) construction of the beam: binding the reinforcing steel bars of the cross beam 3, connecting the binding steel bars with the reserved reinforcing steel bars of the second type variable cross-section anti-slide pile 2, and timely erecting a formwork and pouring concrete;
(9) installing a one-way sliding connection 5: one end of the unidirectional sliding connection 5 is fixed at the variable cross section of the first type of variable cross section anti-slide pile 1 by using a bolt, and the other end of the unidirectional sliding connection 5 is fixed at the end surface of the cross beam 3;
(10) constructing a road system: fastening the plate-type rubber supports 6 at two ends of the top surface of the cross beam 3 by using bolts, wherein the distance between the plate-type rubber supports 6 and the end parts of the cross beam 3 is 500-700 mm, hoisting and placing the rectangular single-span groove-type pavement slab 7 on the plate-type rubber supports 6, fastening a top plate of the plate-type rubber supports 6 and the bottoms of the rectangular single-span groove-type pavement slab 7 by using bolts, and finally paving a pavement structure on the rectangular single-span groove-type pavement slab 7;
(11) constructing a shed tunnel: welding the field-shaped frame 21, and installing the steel wire protective net 22 into a blank of the field-shaped frame 21; welding the rotary hinged support 9 and the springs 10 at four corners of the shed tunnel frame 21, hoisting and placing the shed tunnel frame 21 at the top of the anti-sliding pile, and welding the rotary hinged support 9 and the springs 10 with the embedded parts 25 at the top of the pile;
(12) setting a road baffle: and a protective net is arranged between the adjacent second variable cross-section anti-slide piles.
The invention has the beneficial effects that: (1) the two types of anti-slide piles form an H-shaped anti-slide structure through the cross beam and the unidirectional sliding connection, so that the bending rigidity of the piles is increased, larger slope thrust can be borne, and the landslide can be effectively managed; the pawl column connected in a one-way sliding mode can only move in one direction along the direction of force under the action of thrust, and when the anti-slide pile on the upper side of the slope body deforms towards the slope toe, the second type of variable cross-section anti-slide pile on the lower side of the slope body and the pavement structure on the anti-slide pile cannot be affected. (2) The rectangular single-span groove-shaped road deck is supported on the cross beam through the plate-type rubber support, so that the road load can be transmitted to the anti-slide pile through the cross beam and then directly transmitted to the deep stable rock-soil layer through the anti-slide pile, and the disturbance of the vehicle passing on a landslide body is avoided. (3) Part of soil between the two types of anti-slide piles is dug, so that a shed tunnel type space structure for vehicles to pass is formed, and simultaneously, the load of the slope soil on the anti-slide structure is reduced, so that the stability of the anti-slide structure is improved. (4) The shed surface protective structure is a rigid-flexible combined whole, the section steel is welded into a rigid frame, the integral rigidity of the frame is high, the bending resistance bearing capacity is improved, and the steel wire protective net is made of a flexible material and can offset the impact force of a part of rolling stones on the protective net; the profile steel frame links the anti-sliding structure into an anti-sliding pile group by the embedded parts, so that the integral rigidity of the anti-sliding structure is enhanced, and the deformation of the anti-sliding pile is reduced; meanwhile, the inclined shed tunnel top can prevent the rolling stones from being accumulated on the protection net, so that potential safety hazards caused by road passing are avoided, and meanwhile, the cost of manual treatment of the rolling stones during later-period operation is reduced.
Drawings
Fig. 1 is a schematic view of a shed tunnel type anti-skid structure with a road system, fig. 2 is a structural view of the shed tunnel type anti-skid structure with the road system, fig. 3 is a schematic view of a middle plate wall, fig. 4 is a structural view of a one-way sliding connection, and fig. 5 is a structural view of a shed surface protection. Reference numerals and corresponding names: the anti-skid device comprises a first type of variable cross-section anti-skid pile 1, a second type of variable cross-section anti-skid pile 2, a cross beam 3, a plate wall 4, a one-way sliding connection 5, a plate type rubber support 6, a rectangular single-span groove type road panel 7, a shed surface protection structure 8, a rotating hinged support 9, a spring 10, a groove 11, a convex column 12, a rectangular convex block 13, a rectangular groove 14, a steel plate 15, a tooth groove 16, a pawl column 17, a pawl 18, a rubber anti-collision block 19, a bolt hole 20, a field-shaped frame 21, a steel wire protective net 22, a rotating shaft 23, a shaft shell 24, an embedded part 25, a top plate wall 26, a middle plate wall 27, a bottom plate.
Detailed Description
The features of the invention will be described in more detail below with reference to the accompanying drawings and an example of a shed tunnel skid-resistant structure with a road system, which is given by way of illustration only and is not intended to limit the scope of the invention. After reading this disclosure, any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
As shown in figures 1-5, the invention is a shed tunnel type anti-skid structure with a road system and a construction method, comprising an anti-skid structure, a rectangular single-span groove type road panel 7, a plate wall 4 and a shed surface protection structure 8; the method is characterized in that: the anti-skid structure is H-shaped and comprises a first variable cross-section anti-skid pile 1, a second variable cross-section anti-skid pile 2, a cross beam 3 and a unidirectional sliding connection 5, wherein the piles at the variable cross-section of the first variable cross-section anti-skid pile 1 are respectively provided with a groove 11 on two side surfaces vertical to the road direction, one end of the cross beam 3 is integrally cast with the variable cross-section of the second variable cross-section anti-skid pile 2, the other end surface of the cross beam is connected with the pile body of the first variable cross-section anti-skid pile 1 through the unidirectional sliding connection 5, and the bottom surface of the cross beam 3 and variable cross-section platforms of the first variable cross-section anti-skid pile 1 and the second variable cross-section anti-skid pile 2 are positioned on the same horizontal plane; the unidirectional sliding connection 5 is composed of steel plates 15, a tooth groove 16, a pawl column 17, a pawl 18 and rubber anti-collision blocks 19, the tooth groove 16 and the pawl column 17 are respectively connected to the center of one steel plate 15, the pawl column 17 is inserted into the tooth groove 16, the pawl 18 is matched and nested with the tooth groove 16, the front faces of the two rubber anti-collision blocks 19 are oppositely and respectively fixed on the two steel plates 15, the steel plate 15 connected with the tooth groove 16 is connected with the pile body of the first type variable cross-section anti-sliding pile 1, and the steel plate 15 connected with the pawl column 17 is connected with the center of the end face of the cross; the plate wall 4 comprises a top plate wall 26, a middle plate wall 27 and a bottom plate wall 28, wherein the mutually contacting surfaces of the three types of plate walls are respectively provided with a rectangular convex block 13 and a rectangular groove 14 along the longitudinal central line, the rectangular convex block 13 of the lower plate wall is embedded into the rectangular groove 14 of the upper plate wall, so that the three types of plate walls are mutually nested and assembled, and convex columns 12 at two ends of the plate wall 4 are inserted into the grooves 11 and are assembled and connected with the adjacent first type variable cross-section anti-slide piles 1; the rectangular single-span groove type road slab 7 is supported on the top surface of the cross beam 3 through a plate type rubber support 6; the shed surface protection structure 8 is composed of a field-shaped frame 21 and a steel wire protection net 22, wherein the field-shaped frame 21 is formed by welding profile steel, the steel wire protection net 22 is fixed on the top surface of a space of the field-shaped frame 21, the upper end of the shed surface protection structure 8 is welded with an embedded part 25 at the top of the first variable cross-section anti-slide pile 1 through a rotating hinged support 9, and the lower end of the shed surface protection structure is supported on the top of the second variable cross-section anti-slide pile 2 through a.
As shown in fig. 1 and 2, the cross beam 3 of the anti-skid structure, the first type of variable cross-section anti-skid pile 1 and the second type of variable cross-section anti-skid pile 2 are rectangular and are poured by reinforced concrete; the cross section of the pile below the variable cross section is 2500-4000 mm in length and 1500-3000 mm in width; the inner clear distance between the first type of variable cross-section anti-slide pile 1 and the second type of variable cross-section anti-slide pile 2 is 10000-12000 mm, and the axle center distance between adjacent similar anti-slide piles is 5000-7000 mm; the cross section of the cross beam 3 is 1000-1200 mm in height and 600-800 mm in width; the groove 11 is positioned at the center line of the side surface of the pile body above the variable cross section of the first type of variable cross section slide-resistant pile 1.
As shown in fig. 2, the bottom surface of the groove 11 is on the same horizontal plane with the variable cross-section of the first type of variable cross-section anti-slide pile 1, and the top surface is flush with the top surface of the first type of variable cross-section anti-slide pile 1; the cross section of the groove 11 is T-shaped and is formed by connecting an outer rectangular section and an inner rectangular section; the width of the outer rectangular section of the groove 11 is 300-400 mm, the depth is 250-350 mm, the width of the inner rectangular section is 200-300 mm larger than that of the outer rectangular section, and the depth is 300-400 mm.
As shown in fig. 1 and 2, the length of the rectangular single-span groove-shaped road panel 7 is the same as the pile center distance of the adjacent similar slide-resistant piles, and the width of the rectangular single-span groove-shaped road panel is 1000-1500 mm smaller than the inner distance between the first type of variable cross-section slide-resistant pile 1 and the second type of variable cross-section slide-resistant pile 2.
As shown in fig. 4, two rows of unidirectional teeth are arranged on the inner wall of the tooth slot 16 of the unidirectional sliding connection 5, and the unidirectional teeth are in the shape of a right trapezoid; the pawl column 17 is a cuboid, two side faces of the pawl column are respectively provided with a pawl 18, the pawls 18 are matched with one-way teeth in the tooth grooves 16, the pawls 18 are embedded in the tooth grooves 16, and the tooth grooves 16 and the pawl column 17 are the same in length.
As shown in fig. 2 and 3, the panel wall 4 includes a ceiling wall 26, a middle panel wall 27 and a floor wall 28; the thickness of the plate wall 4 is 500-700 mm, the height of the plate wall is equal to that of the groove 11, and the length of the plate wall is equal to the distance between the upward-slope variable-section anti-slide piles 1; the convex column 12 is positioned at the center of two end faces of the plate wall 4, and the cross section of the convex column 12 is the same as that of the groove 11; the lower end face of the bottom plate wall 28 is flat, the center of the upper end face is provided with a rectangular lug 13, the lower end face of the middle plate wall 27 is provided with a rectangular groove 14 matched with the rectangular lug 13, the upper end face is provided with the rectangular lug 13, the lower end face of the top plate wall 26 is provided with the rectangular groove 14, and the upper end face is flat and straight.
As shown in fig. 2 and 3, the rectangular protrusion 13 and the rectangular groove 14 are both located at the center of the end face, and have cross-sectional dimensions of 100 mm to 200mm wide and 50mm to 100 mm high, and the length is the same as the length of the panel wall 4.
As shown in fig. 5, the field-shaped frame 21 is formed by welding the ends of # 40-50 h-beams, the upper flange of the h-beams around the space of the field-shaped frame 21 is provided with fixing round holes 29 parallel to the h-beams, the diameter of each fixing round hole 29 is 5-7 mm, the distance between the fixing round holes 29 is 50-60 mm, and the distance between the center of each fixing round hole 29 and the flange edge is 25-30 mm.
As shown in fig. 5, the wire protecting net 22 is woven by steel wires, the steel wires pass through the fixing round holes 29 and are fixed on the flange of the i-steel of the frame 21, and the diameter of the steel wires is 1-2 mm smaller than that of the fixing round holes 29.
The invention relates to a shed tunnel type anti-skid structure with a road system and a construction method, comprising the following steps:
(1) and (3) surveying and designing: surveying the engineering geological conditions and the hydrological meteorological conditions of the mountain body, analyzing and determining the position of a potential sliding surface, calculating and designing, and determining the height and the spacing of piles;
(2) prefabricated panel wall 4: manufacturing the plate wall 4 in a factory according to the engineering design size, and conveying the plate wall to a construction site;
(3) constructing pile holes: determining the position of the slide-resistant pile according to the construction drawing, excavating pile holes of a first type of variable cross-section slide-resistant pile 1 and a second type of variable cross-section slide-resistant pile 2, and constructing a retaining wall;
(4) constructing a first type of variable cross-section slide-resistant pile 1: hoisting and placing an anti-slide pile reinforcement cage, and pouring a first type of variable cross-section anti-slide pile 1;
(5) and (3) constructing a second type variable cross-section slide-resistant pile 2: hoisting and placing an anti-slide pile reinforcement cage, pouring a second type of variable cross-section anti-slide pile 2, and reserving a cross beam 3 reinforcement at the variable cross section of the pile according to a construction drawing;
(6) and (3) constructing a plate wall 4: excavating earthwork between adjacent first-class variable-cross-section anti-slide piles 1, inserting a prefabricated bottom plate wall 28 into a groove 11 of the first-class variable-cross-section anti-slide pile 1, then installing an intermediate plate wall 27, enabling a rectangular bump 13 below the intermediate plate wall 27 to be tightly nested with a rectangular groove 14 of the bottom plate wall 28, and finally installing a top plate wall 26, and enabling the rectangular bump 13 below the top plate wall 26 to be tightly nested with the rectangular groove 14 of the intermediate plate wall 27;
(7) excavating earth: excavating earthwork between the first type variable cross-section slide-resistant pile 1 and the second type variable cross-section slide-resistant pile 2 to the variable cross-section of the variable cross-section slide-resistant pile;
(8) and (3) construction of the beam: binding the reinforcing steel bars of the cross beam 3, connecting the binding steel bars with the reserved reinforcing steel bars of the second type variable cross-section anti-slide pile 2, and timely erecting a formwork and pouring concrete;
(9) installing a one-way sliding connection 5: one end of the unidirectional sliding connection 5 is fixed at the variable cross section of the first type of variable cross section anti-slide pile 1 by using a bolt, and the other end of the unidirectional sliding connection 5 is fixed at the end surface of the cross beam 3;
(10) constructing a road system: fastening the plate-type rubber supports 6 at two ends of the top surface of the cross beam 3 by using bolts, wherein the distance between the plate-type rubber supports 6 and the end parts of the cross beam 3 is 500-700 mm, hoisting and placing the rectangular single-span groove-type pavement slab 7 on the plate-type rubber supports 6, fastening a top plate of the plate-type rubber supports 6 and the bottoms of the rectangular single-span groove-type pavement slab 7 by using bolts, and finally paving a pavement structure on the rectangular single-span groove-type pavement slab 7;
(11) constructing a shed tunnel: welding the field-shaped frame 21, and installing the steel wire protective net 22 into a blank of the field-shaped frame 21; welding the rotary hinged support 9 and the springs 10 at four corners of the shed tunnel frame 21, hoisting and placing the shed tunnel frame 21 at the top of the anti-sliding pile, and welding the rotary hinged support 9 and the springs 10 with the embedded parts 25 at the top of the pile;
(12) setting a road baffle: and a protective net is arranged between the adjacent second variable cross-section anti-slide piles.
The technical principle of the invention is as follows: (1) antiskid and vertical force transmission principle: the anti-sliding structure is formed into an H-shaped structure by combining a first type of variable cross-section anti-sliding piles, a second type of variable cross-section anti-sliding piles, a cross beam and a one-way sliding connection, and the rectangular single-span groove type road panel is positioned on the top surface of the cross beam; the two types of anti-slide piles are inserted into a stable soil layer below a sliding surface, on one hand, when a sliding mass deforms or slides under the action of gravity or other external factors, the resistance of the stable soil layer to the piles can balance the action load of the sliding mass due to deformation; on the other hand, when the gravity of the pavement slab and the driving load borne on the pavement act on the cross beam, the two ends of the cross beam transmit the force into the pile body below the variable cross section, and finally the force is transmitted into the stabilized soil layer. (2) Unloading principle: according to the active soil pressure principle, the self weight of the soil body can generate horizontal load on the supporting and retaining structure, and partial soil body is excavated, so that the self weight of the soil body can be reduced, and the load is reduced. (3) Shed tunnel principle: a shed surface is erected at the tops of the two types of anti-slide piles to form a shed tunnel type space structure; shed face protective structure fixes at variable cross section friction pile top with rotating hinged-support and spring, and when the rolling stone on the landslide body fell to the shed face, can produce the impact load to the shed face, and the steel wire protection network and the spring support of shed face can produce great elastic deformation, and according to newton's second and third law, elastic deformation can show and reduce the impact load of rolling stone to the shed face.
Claims (10)
1. The utility model provides a shed tunnel formula cling compound structure with road system, includes cling compound structure, rectangle single-span cell-type pavement slab (7), siding wall (4), shed face protective structure (8), its characterized in that: the anti-skid structure is H-shaped and comprises a first variable cross-section anti-skid pile (1), a second variable cross-section anti-skid pile (2), a cross beam (3) and a unidirectional sliding connection (5), wherein the piles above the variable cross section of the first variable cross-section anti-skid pile (1) are respectively provided with a groove (11) on two side surfaces vertical to the road direction, one end of the cross beam (3) is integrally cast with the variable cross section of the second variable cross-section anti-skid pile (2), the other end surface of the cross beam is connected with the pile body of the first variable cross-section anti-skid pile (1) through the unidirectional sliding connection (5), and the bottom surface of the cross beam (3) and variable cross-section platforms of the first variable cross-section anti-skid pile (1) and the second variable cross-section anti-skid pile (2) are positioned on the same horizontal plane; the unidirectional sliding connection (5) is composed of steel plates (15), tooth grooves (16), pawl columns (17), pawls (18) and rubber anti-collision blocks (19), the tooth grooves (16) and the pawl columns (17) are connected to the center of one steel plate (15) respectively, the pawl columns (17) are inserted into the tooth grooves (16), the pawls (18) are matched and nested with the tooth grooves (16), the front faces of the two rubber anti-collision blocks (19) are oppositely and respectively fixed on the two steel plates (15), the steel plates (15) connected with the tooth grooves (16) are connected with the pile body of the first variable cross-section anti-sliding pile (1), and the steel plates (15) connected with the pawl columns (17) are connected with the center of the end face of the cross beam (3); the plate wall (4) comprises a top plate wall (26), a middle plate wall (27) and a bottom plate wall (28), wherein the mutual contact surfaces of the three types of plate walls are respectively provided with a rectangular convex block (13) and a rectangular groove (14) along the longitudinal central line, the rectangular convex block (13) of the lower plate wall is embedded into the rectangular groove (14) of the upper plate wall, so that the three types of plate walls are mutually nested and assembled, and convex columns (12) at two ends of the plate wall (4) are inserted into grooves (11) to be assembled and connected with adjacent first variable cross-section anti-slide piles (1); the rectangular single-span groove type road panel (7) is supported on the top surface of the cross beam (3) through a plate type rubber support (6); the shed surface protection structure (8) is composed of a field-shaped frame (21) and a steel wire protection net (22), wherein the field-shaped frame is formed by welding profile steel, the steel wire protection net (22) is fixed on the top surface of a space of the field-shaped frame (21), the upper end of the shed surface protection structure (8) is welded with an embedded part (25) at the top of the first variable cross-section anti-slide pile (1) through a rotating hinged support (9), and the lower end of the shed surface protection structure is supported on the top of the second variable cross-section anti-slide pile (2) through a spring (10).
2. Shed tunnel skid resistance construction with a road system according to claim 1, characterized in that: the cross beam (3) of the anti-skid structure, the first variable cross-section anti-skid pile (1) and the second variable cross-section anti-skid pile (2) are rectangular and are poured by reinforced concrete; the groove (11) is positioned at the center line of the side surface of the pile body above the variable cross section of the first type of variable cross section slide-resistant pile (1).
3. Shed-tunnel skid resistance structure with road system according to claim 1 or 2, characterized in that: the bottom surface of the groove (11) and the variable cross section of the first type of variable cross section anti-slide pile (1) are positioned on the same horizontal plane, and the top surface of the groove is flush with the top surface of the upslope variable cross section anti-slide pile (1); the cross section of the groove (11) is T-shaped and is formed by connecting an outer rectangular section and an inner rectangular section; the inner rectangular section of the groove (11) is wider than the outer rectangular section.
4. Shed tunnel skid resistance construction with a road system according to claim 1, characterized in that: the length of the rectangular single-span groove-shaped road panel (7) is the same as the distance between the centers of the adjacent similar slide-resistant piles, and the width of the rectangular single-span groove-shaped road panel is smaller than the inner distance between the first type of slide-resistant pile (1) and the second type of slide-resistant pile (2).
5. Shed tunnel skid resistance construction with a road system according to claim 1, characterized in that: two rows of unidirectional teeth are arranged on the inner wall of the tooth socket (16) of the unidirectional sliding connection (5), and the unidirectional teeth are in a right-angled trapezoid shape; the pawl column (17) is a cuboid, two side faces of the pawl column are respectively provided with a pawl (18), the pawls (18) are matched with the unidirectional teeth in the tooth grooves (16), the pawls (18) are embedded in the tooth grooves (16), and the tooth grooves (16) and the pawl column (17) are the same in length.
6. Shed tunnel skid resistance construction with a road system according to claim 1, characterized in that: the height of the plate wall (4) is equal to that of the groove (11), and the length of the plate wall is equal to the distance between the first variable cross-section anti-slide piles (1); the convex column (12) is positioned at the center of two end faces of the plate wall (4), and the cross section of the convex column (12) is the same as that of the groove (11); the lower end face of the bottom plate wall (28) is flat, the center of the upper end face is provided with a rectangular convex block (13), the lower end face of the middle plate wall (27) is provided with a rectangular groove (14) matched with the rectangular convex block (13), the upper end face is provided with the rectangular convex block (13), the lower end face of the top plate wall (26) is provided with the rectangular groove (14), and the upper end face is flat and straight.
7. Shed tunnel type anti-skid construction with a road system according to claim 1, characterised in that: the rectangular convex block (13) and the rectangular groove (14) are both positioned at the center of the mutual contact surface of the plate wall (4), and the length of the rectangular convex block (13) is the same as that of the plate wall (4).
8. Shed tunnel skid resistance construction with a road system according to claim 1, characterized in that: the frame (21) is formed by welding I-steel ends, the width of the frame (21) is the same as the pile center distance between the first type of anti-slide pile (1) and the second type of anti-slide pile (2), and the length of the frame is the same as the pile center distance between the adjacent similar anti-slide piles; the upper flange of the I-steel around the blank of the field-shaped frame (21) is provided with a fixed round hole (29) parallel to the I-steel.
9. Shed tunnel skid resistance construction with a road system according to claim 1, characterized in that: the steel wire protective net (22) is formed by weaving steel wires, the steel wires penetrate through the fixing round holes (29) and are fixed on the I-shaped steel flange of the square-shaped frame (21), and the diameter of each steel wire is smaller than that of each fixing round hole (29).
10. A shed tunnel type anti-skid structure with a road system and a construction method are characterized by comprising the following steps:
(1) and (3) surveying and designing: surveying the engineering geological conditions and the hydrological meteorological conditions of the mountain body, analyzing and determining the position of a potential sliding surface, calculating and designing, and determining the height and the spacing of piles;
(2) prefabricated panel wall (4): manufacturing a plate wall (4) in a factory according to the engineering design size, and conveying the plate wall to a construction site;
(3) constructing pile holes: determining the position of the slide-resistant pile according to the construction drawing, excavating pile holes of the first type of variable cross-section slide-resistant pile (1) and the second type of variable cross-section slide-resistant pile (2), and constructing a retaining wall;
(4) constructing a first type of variable cross-section slide-resistant pile (1): hoisting and placing an anti-slide pile reinforcement cage, and pouring a first type of variable cross-section anti-slide pile (1);
(5) constructing a second type of variable cross-section slide-resistant pile (2): hoisting and placing an anti-slide pile reinforcement cage, pouring a second type of variable cross-section anti-slide pile (2), and reserving a cross beam (3) reinforcement at the variable cross-section of the pile according to a construction drawing;
(6) constructing the plate wall (4): excavating earthwork between adjacent first-class variable-cross-section anti-slide piles (1), inserting a prefabricated bottom plate wall (28) into a groove (11) of the first-class variable-cross-section anti-slide pile (1), then installing a middle plate wall (27), enabling a rectangular bump (13) below the middle plate wall (27) to be tightly nested with a rectangular groove (14) of the bottom plate wall (28), finally installing a top plate wall (26), and enabling the rectangular bump (13) below the top plate wall (26) to be tightly nested with the rectangular groove (14) of the middle plate wall (27);
(7) excavating earth: excavating earthwork between the first type of variable cross-section slide-resistant pile (1) and the second type of variable cross-section slide-resistant pile (2) to the variable cross-section of the variable cross-section slide-resistant pile;
(8) and (3) construction of the beam: binding reinforcing steel bars of the cross beam (3), connecting the binding reinforcing steel bars with reserved reinforcing steel bars of the second variable cross-section anti-slide pile (2), and timely erecting a formwork and pouring concrete;
(9) installing a one-way sliding connection (5): one end of the unidirectional sliding connection (5) is fixed at the variable cross section of the first type of variable cross section anti-slide pile (1) by using a bolt, and the other end of the unidirectional sliding connection is fixed at the end surface of the cross beam (3);
(10) constructing a road system: fastening plate-type rubber supports (6) at two ends of the top surface of the cross beam (3) by using bolts, wherein the distance between the plate-type rubber supports and the end part of the cross beam (3) is 500-700 mm, hoisting and placing a rectangular single-span groove-type road panel (7) on the plate-type rubber supports (6), fastening a top plate of each plate-type rubber support (6) and the bottom of the rectangular single-span groove-type road panel (7) by using bolts, and finally paving a road surface structure on the rectangular single-span groove-type road panel (7);
(11) constructing a shed tunnel: welding the field-shaped frame (21), and installing a steel wire protective net (22) into a space of the field-shaped frame (21); welding the rotary hinged support (9) and the springs (10) at four corners of the shed-tunnel-shaped frame (21), hoisting and placing the shed-tunnel-shaped frame (21) at the top of the anti-slide pile, and welding the rotary hinged support (9) and the springs (10) with embedded parts (25) at the top of the pile;
(12) setting a road baffle: and a protective net is arranged between the adjacent second variable cross-section anti-slide piles.
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| CN108612115B (en) * | 2018-06-12 | 2020-05-12 | 兰州理工大学 | Separated anti-skidding structure with vibration isolation road and construction method |
| CN110029600B (en) * | 2019-05-05 | 2021-04-23 | 淳安千岛湖子龙土石方工程有限公司 | A side slope stone rolling fast row structure for mountain area highway protection |
| CN112609521A (en) * | 2020-12-14 | 2021-04-06 | 中铁第一勘察设计院集团有限公司 | H-shaped anti-slide pile-pile plate structure roadbed structure |
| CN112878372A (en) * | 2021-01-07 | 2021-06-01 | 广州铁路职业技术学院（广州铁路机械学校） | Open cut tunnel structure and construction method thereof |
| CN113481877A (en) * | 2021-06-04 | 2021-10-08 | 中交一公局桥隧工程有限公司 | Hang and water case roof beam construction debris anti falling device |
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| CN203782684U (en) * | 2014-04-09 | 2014-08-20 | 中冶集团武汉勘察研究院有限公司 | Anti-skid pile provided with crossbeam |
| CN203855959U (en) * | 2014-05-13 | 2014-10-01 | 中冶集团武汉勘察研究院有限公司 | Circular-section anti-slide pile with bilateral haunched beams |
| CN104018450A (en) * | 2014-06-18 | 2014-09-03 | 周紫阳 | Multipurpose fire hydrant protective fence |
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