CN108103867A - A kind of hangar tunnel formula antiskid structure and construction method with roadnet - Google Patents

A kind of hangar tunnel formula antiskid structure and construction method with roadnet Download PDF

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Publication number
CN108103867A
CN108103867A CN201810000388.3A CN201810000388A CN108103867A CN 108103867 A CN108103867 A CN 108103867A CN 201810000388 A CN201810000388 A CN 201810000388A CN 108103867 A CN108103867 A CN 108103867A
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China
Prior art keywords
variable
friction pile
antiskid
board
pile
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CN201810000388.3A
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Chinese (zh)
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CN108103867B (en
Inventor
董建华
于小燕
胡邦弼
颉永斌
孙国栋
张明礼
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Lanzhou University of Technology
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Lanzhou University of Technology
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Priority to CN201810000388.3A priority Critical patent/CN108103867B/en
Publication of CN108103867A publication Critical patent/CN108103867A/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C1/00Design or layout of roads, e.g. for noise abatement, for gas absorption
    • E01C1/002Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00Foundations for pavings
    • E01C3/04Foundations produced by soil stabilisation
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00Devices 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
    • E01F7/04Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • E01F7/045Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines
    • E02D17/207Securing of slopes or inclines with means incorporating sheet piles or piles
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

Abstract

A kind of hangar tunnel formula antiskid structure and construction method with roadnet, belong to technical field of road engineering, including antiskid structure, rectangle single span groove profile road deck, board wall and canopy face safeguard structure;Antiskid structure is H-shaped, and one-piece casting at the variable cross-section of one end of crossbeam and the second class variable cross-section friction pile of lower section, other end is connected by the pile body being unidirectionally slidably connected with the first kind variable cross-section friction pile of top;Board wall above Inclination body is stuck in the groove of adjacent variable cross-section friction pile;Rectangle single span groove profile road deck is supported on crossbeam;Canopy face safeguard structure is connected with antiskid stake top for elastic rotation.Invention not only avoids the substantial amounts of earth work when building road on slip mass, and solve disturbance and harm of the slip mass to road during operation;It is simple in structure, securely and reliably, there is good economic effect.

Description

A kind of hangar tunnel formula antiskid structure and construction method with roadnet
Technical field
The invention belongs to technical field of road engineering, and in particular to the hangar tunnel formula antiskid structure technology with roadnet.
Background technology
In road engineering in a mountainous area design, due to special landform and geological environment, landslide location is frequently encountered.Often To endangering larger landslide the measure of passing round reasonably is taken by scheme comparison.If but after sufficient scheme comparison, around Row cost is too big, preferably considers to renovate landslide.In the prior art, road is built in slide area, generally first to come down into Row punishment, punishment landslide uses more to be removed slip mass, administer surface water and groundwater, lightening and adverse pressure and sets retaining structure etc. Measure.For major landslip body, above-mentioned control measures are great in constructing amount, spend height, uneconomical also unreasonable.Therefore, occur adopting With the road on friction pile punishment landslide.Patent such as Application No. 201620242141.9 is disclosed punishes with reference to H type friction pile The cantilevered structure road on landslide, avoids the high embankment on slip mass, greatly reduces and fills out excavation and cart-away amount.However by road Combined with friction pile integral, road surface can generate disturbance to the friction pile of lower section, and then influence cunning when being subject to traffic load Unstable soil layer in slopes, causes the slip of unstable soil layer.The road of this combination friction pile still has potential safety Hidden danger.Moreover, the Rolling Stone on slip mass can also produce a very large impact road, personnel safety is endangered, causes economic loss.
The content of the invention
The object of the present invention is to provide a kind of hangar tunnel formula antiskid structures and construction method with roadnet.
The present invention is a kind of hangar tunnel formula antiskid structure and construction method with roadnet, the hangar tunnel with roadnet Formula antiskid structure, including antiskid structure, rectangle single span groove profile road deck 7, board wall 4, canopy face safeguard structure 8;The shape of antiskid structure Shape is H-shaped, 5 is made of first kind variable cross-section friction pile 1, the second class variable cross-section friction pile 2, crossbeam 3 and unidirectional be slidably connected, the Stake more than at the variable cross-section of a kind of variable cross-section friction pile 1 respectively opens a groove on two sides vertical with road direction 11, one-piece casting at the variable cross-section of one end of crossbeam 3 and the second class variable cross-section friction pile 2, other end passes through the unidirectionally company of slip It connects 5 with the pile body of first kind variable cross-section friction pile 1 to be connected, bottom surface and the first kind variable cross-section friction pile 1 and the second class of crossbeam 3 become The variable cross-section platform of section friction pile 2 is in same level;Unidirectionally 5 are slidably connected by steel plate 15, tooth socket 16, pawl column 17th, pawl 18 and rubber anti-collision block 19 are formed, and tooth socket 16 and pawl column 17 are respectively connected to one piece of 15 center of steel plate, pawl column 17 In insertion tooth socket 16 and pawl 18 is engaged nesting with tooth socket 16, and two 19 fronts of rubber anti-collision block are opposite to be separately fixed at two pieces On steel plate 15, the steel plate 15 for being connected with tooth socket 16 is connected with the pile body of first kind variable cross-section friction pile 1, is connected with pawl column 17 Steel plate 15 is connected with the end face center of crossbeam 3;Board wall 4 includes top plate wall 26, intermediate board wall 27 and bottom plate wall 28, three classes board wall The face of contacting with each other is respectively arranged with rectangular cam 13 and rectangular channel 14 along the longitudinal centerline, and the rectangular cam 13 of lower section board wall is embedding In the rectangular channel 14 for entering top board wall, make the mutually nested assembling of three classes board wall, the pillar 12 at 4 both ends of board wall is inserted into groove 11 and phase The adjacent assembling of first kind variable cross-section friction pile 1 is connected;Rectangle single span groove profile road deck 7 is supported on crossbeam 3 by laminated rubber bearing 6 Top surface;The matrix pattern frame 21 and steel wire protection network 22 that canopy face safeguard structure 8 is welded by shaped steel are formed, steel wire protection network 22 The space top surface of matrix pattern frame 21 is fixed on, the upper end of canopy face safeguard structure 8 is resisted by rotation hinged-support 9 and first kind variable cross-section The built-in fitting 25 at 1 top of sliding pile welds, and lower end is supported on the second class variable cross-section friction pile 2 by spring 10 and pushes up.
The construction method of the hangar tunnel formula antiskid structure with roadnet of the present invention, step are:
(1)Prospective design:The engineering geological condition of massif is reconnoitred, hydrometeorological condition analyzes the position for determining potential water use, Calculating design is carried out, determines the height of stake, spacing;
(2)Prefabricated board wall 4:Board wall 4 is made in factory by engineering design size, and is transported to construction site;
(3)Construction stake holes:The position of friction pile is determined according to construction drawing, first kind variable cross-section friction pile 1 is excavated and the second class becomes The stake holes of section friction pile 2, and perform retaining wall;
(4)First kind variable cross-section friction pile 1 is constructed:It lifts and places antiskid pile cages, pour first kind variable cross-section friction pile 1;
(5)Second class variable cross-section friction pile 2 is constructed:It lifts and places antiskid pile cages, pour the second class variable cross-section friction pile 2,3 reinforcing bar of crossbeam is reserved at the variable cross-section of stake according to construction drawing;
(6)Board wall 4 is constructed:The earthwork between adjacent first kind variable cross-section friction pile 1 is excavated, prefabricated bottom plate wall 28 is inserted into Into the groove 11 of first kind variable cross-section friction pile 1, intermediate board wall 27 is installed afterwards, makes the rectangular cam 13 under intermediate board wall 27 It is close nested with the rectangular channel 14 of bottom plate wall 28, last installation top plate wall 26, rectangular cam 13 and intermediate plate under top plate wall 26 The rectangular channel 14 of wall 27 is close nested;
(7)Earth excavation:The earthwork between first kind variable cross-section friction pile 1 and the second class variable cross-section friction pile 2 is excavated, is excavated to change At the variable cross-section of section friction pile;
(8)Crossbeam 3 is constructed:Binding 3 reinforcing bar of crossbeam is simultaneously connected with the reserved steel bar of the second class variable cross-section friction pile 2, props up in time Mould and casting concrete;
(9)Installation is unidirectionally slidably connected 5:First kind variable cross-section friction pile 1 is fixed on will unidirectionally be slidably connected 5 one end of bolt Variable cross-section at, the other end is fixed on the endface of crossbeam 3;
(10)Construction road system:Laminated rubber bearing 6 is fastened on to the both ends of 3 top surface of crossbeam with bolt, with 3 end of crossbeam Distance is 500~700 ㎜, the lifting of rectangle single span groove profile road deck 7 is placed on laminated rubber bearing 6, by board-like rubber branch The bottom of the top plate and rectangle single span groove profile road deck 7 of seat 6 is fastened with bolt, finally on 7 upper berth of rectangle single span groove profile road deck If pavement structure;
(11)Construction hangar tunnel:Matrix pattern frame 21 is welded, and steel wire protection network 22 is installed to the space of matrix pattern frame 21; Rotation hinged-support 9, spring 10 are welded on to the corner of hangar tunnel matrix pattern frame 21, lifting places hangar tunnel matrix pattern frame 21 anti- At sliding pile top, weld rotation hinged-support 9, spring 10 and the built-in fitting 25 in stake top portion;
(12)Road baffle is set:Protection network is set between adjacent second class variable cross-section friction pile.
The beneficial effects of the invention are as follows:(1)Two class friction piles are formed by H-shaped antiskid knot by crossbeam, unidirectional be slidably connected Structure increases the bending stiffness of stake, can bear larger slopes thrust, and landslide can effectively be administered;The unidirectional company of slip The pawl column connect can only be under thrust along the direction one-way movement of power, and the friction pile on the upside of slopes is deformed upon to slope foot When, the second class variable cross-section friction pile on the downside of slopes and pavement structure thereon will not be had an impact.(2)Rectangle single span groove profile Road deck is supported on by laminated rubber bearing on crossbeam, can road surface load be transferred to friction pile by crossbeam, then by friction pile Deep stability rock-soil layer is directly delivered to, avoids disturbance of the vehicle pass-through to slip mass.(3)Excavate the portion between two class friction piles Divide the soil body, not only form the hangar tunnel formula space structure for vehicle pass-through, while also reduce the slope surface soil body to antiskid structure Load, so as to add the stability of antiskid structure.(4)Canopy face safeguard structure is the entirety of rigid flexible system, and shaped steel is welded into Rigid frame, frame overall stiffness is big, and anti-bending bearing capacity improves, and steel wire protection network is flexible material, can offset a part of Rolling Stone To the impact force of protection network;Structural steel frame is contacted antiskid structure into antiskid pile group by built-in fitting, enhances the whole of antiskid structure Body rigidity reduces the deformation of friction pile;While inclined hangar tunnel top is also possible to prevent Rolling Stone and is accumulated on protection network, avoids The cost of artificial treatment Rolling Stone during bringing security risk to road while also reducing later stage operation.
Description of the drawings
Fig. 1 is the hangar tunnel formula antiskid structure schematic diagram with roadnet, and Fig. 2 is the hangar tunnel formula antiskid with roadnet Structure chart, Fig. 3 are intermediate board wall schematic diagrames, and Fig. 4 is unidirectional sliding connection structure figure, and Fig. 5 is canopy face safeguard structure figure.Attached drawing mark Note and correspondence are entitled:First kind variable cross-section friction pile 1, the second class variable cross-section friction pile 2, crossbeam 3, board wall 4, the unidirectional company of slip Connect 5, laminated rubber bearing 6, rectangle single span groove profile road deck 7, canopy face safeguard structure 8, rotation hinged-support 9, spring 10, groove 11st, pillar 12, rectangular cam 13, rectangular channel 14, steel plate 15, tooth socket 16, pawl column 17, pawl 18, rubber anti-collision block 19, bolt Hole 20, matrix pattern frame 21, steel wire protection network 22, shaft 23, shaft housing 24, built-in fitting 25, top plate wall 26, intermediate board wall 27, Bottom plate wall 28, fixed circular hole 29.
Specific embodiment
Below in conjunction with the accompanying drawings with a kind of hangar tunnel formula antiskid structure example with roadnet to feature of present invention make more into The description of one step, the given examples are served only to explain the present invention, is not intended to limit the scope of the present invention.After the present invention is read, Within the spirit and principles of the invention, all any modification, equivalent and improvement made are intended to be limited solely by the guarantor of the present invention It protects within scope.
As shown in Fig. 1~5, the present invention is a kind of hangar tunnel formula antiskid structure and construction method with roadnet, including Antiskid structure, rectangle single span groove profile road deck 7, board wall 4, canopy face safeguard structure 8;It is characterized in that:The shape of antiskid structure is H Shape 5 is made of, the first kind first kind variable cross-section friction pile 1, the second class variable cross-section friction pile 2, crossbeam 3 and unidirectional be slidably connected A groove 11 is respectively opened in stake more than at the variable cross-section of variable cross-section friction pile 1 on two sides vertical with road direction, horizontal One-piece casting at the variable cross-section of one end of beam 3 and the second class variable cross-section friction pile 2, other end by be unidirectionally slidably connected 5 with The pile body of first kind variable cross-section friction pile 1 is connected, bottom surface and first kind variable cross-section friction pile 1 and the second class variable cross-section of crossbeam 3 The variable cross-section platform of friction pile 2 is in same level;Unidirectionally 5 are slidably connected by steel plate 15, tooth socket 16, pawl column 17, spine Pawl 18 and rubber anti-collision block 19 are formed, and tooth socket 16 and pawl column 17 are respectively connected to one piece of 15 center of steel plate, and pawl column 17 is inserted into In tooth socket 16 and pawl 18 is engaged nesting with tooth socket 16, and two 19 fronts of rubber anti-collision block are opposite to be separately fixed at two blocks of steel On plate 15, the steel plate 15 for being connected with tooth socket 16 is connected with the pile body of first kind variable cross-section friction pile 1, is connected with the steel of pawl column 17 Plate 15 is connected with the end face center of crossbeam 3;Board wall 4 includes top plate wall 26, intermediate board wall 27 and bottom plate wall 28, the phase of three classes board wall Mutual contact surface is respectively arranged with rectangular cam 13 and rectangular channel 14 along the longitudinal centerline, and the rectangular cam 13 of lower section board wall is embedded in In the rectangular channel 14 of top board wall, make the mutually nested assembling of three classes board wall, the pillar 12 at 4 both ends of board wall be inserted into groove 11 with it is adjacent The assembling of first kind variable cross-section friction pile 1 is connected;Rectangle single span groove profile road deck 7 is supported on crossbeam 3 by laminated rubber bearing 6 Top surface;The matrix pattern frame 21 and steel wire protection network 22 that canopy face safeguard structure 8 is welded by shaped steel are formed, and steel wire protection network 22 is solid The space top surface of matrix pattern frame 21 is scheduled on, the upper end of canopy face safeguard structure 8 is by rotation hinged-support 9 and first kind variable cross-section antiskid The built-in fitting 25 at 1 top of stake welds, and lower end is supported on the second class variable cross-section friction pile 2 by spring 10 and pushes up.
As shown in Figure 1, 2, the crossbeam 3 of antiskid structure and first kind variable cross-section friction pile 1 and the second class variable cross-section friction pile 2 It is rectangle, is poured by armored concrete;The sectional dimension of stake under variable cross-section is sentenced is long 2500~4000mm, wide by 1500~ 3000mm;The interior clear distance of first kind variable cross-section friction pile 1 and the second class variable cross-section friction pile 2 is 10000~12000mm, adjacent Similar friction pile distance of shaft centers be 5000~7000mm;The sectional dimension of crossbeam 3 is high 1000~1200mm, wide by 600~ 800mm;Groove 11 is located at the pile body center side line more than at the variable cross-section of first kind variable cross-section friction pile 1.
As shown in Fig. 2, the bottom surface of groove 11 and the variable cross-section of first kind variable cross-section friction pile 1 are in same level, The either flush of top surface and first kind variable cross-section friction pile 1;The cross sectional shape of groove 11 is T-shaped, by outer rectangular section and interior rectangle Section is connected to form;The outer rectangular section width of groove 11 is 300~400 ㎜, 250~350mm of depth, and interior rectangular section is wider than outer rectangular section 200~300 ㎜, 300~400mm of depth.
As shown in Figure 1, 2, the length of rectangle single span groove profile road deck 7 with the stake of adjacent similar friction pile in the heart away from phase Together, width is smaller 1000~1500mm than spacing in first kind variable cross-section friction pile 1 and the second class variable cross-section friction pile 2.
As shown in figure 4, be unidirectionally slidably connected 5 16 inner wall of tooth socket with two rows of unidirectional teeth, unidirectional odontoid is right angle ladder Shape;Pawl column 17 is in cuboid, two side is respectively provided with a pawl 18, and pawl 18 matches with the unidirectional tooth in tooth socket 16 Set, and pawl 18 is embedded in tooth socket 16, tooth socket 16 is identical with the length of pawl column 17.
As shown in Figure 2,3, board wall 4 includes top plate wall 26, intermediate board wall 27 and bottom plate wall 28;4 thickness of board wall, 500~700 ㎜, Height is equal with the height of groove 11, and length is equal with the spacing of upward slope variable cross-section friction pile 1;Pillar 12 is located at the two of board wall 4 At end face center, the sectional dimension of pillar 12 is identical with groove 11;The lower face of bottom plate wall 28 is straight, and upper surface has at center There are the rectangular channel 14 to match with rectangular cam 13 in rectangular cam 13, the lower face of intermediate board wall 27, and there is rectangular cam in upper surface 13, there is rectangular channel 14 in the lower face of top plate wall 26, and upper surface is straight.
As shown in Figure 2,3, rectangular cam 13 and rectangular channel 14 are respectively positioned at end face center, and sectional dimension is wide by 100~200 ㎜, high 50~100 ㎜, length are identical with the length of board wall 4.
As shown in figure 5, matrix pattern frame 21 is welded by 40~50# I-steel end, the space of matrix pattern frame 21 The top flange of surrounding I-steel is provided with the fixation circular hole 29 parallel with I-steel, 29 a diameter of 5~7mm of fixed circular hole, and spacing is 50~60 ㎜, the circle center distance edge of a wing side of fixed circular hole 29 is 25~30mm.
As shown in figure 5, steel wire protection network 22 is formed by braided steel wire, steel wire passes through fixed circular hole 29 to be fixed on matrix pattern frame On the I-steel edge of a wing of frame 21, steel wire diameter is smaller 1~2mm than the diameter of fixed circular hole 29.
The hangar tunnel formula antiskid structure and construction method with roadnet of the present invention, step are:
(1)Prospective design:The engineering geological condition of massif is reconnoitred, hydrometeorological condition analyzes the position for determining potential water use, Calculating design is carried out, determines the height of stake, spacing;
(2)Prefabricated board wall 4:Board wall 4 is made in factory by engineering design size, and is transported to construction site;
(3)Construction stake holes:The position of friction pile is determined according to construction drawing, first kind variable cross-section friction pile 1 is excavated and the second class becomes The stake holes of section friction pile 2, and perform retaining wall;
(4)First kind variable cross-section friction pile 1 is constructed:It lifts and places antiskid pile cages, pour first kind variable cross-section friction pile 1;
(5)Second class variable cross-section friction pile 2 is constructed:It lifts and places antiskid pile cages, pour the second class variable cross-section friction pile 2,3 reinforcing bar of crossbeam is reserved at the variable cross-section of stake according to construction drawing;
(6)Board wall 4 is constructed:The earthwork between adjacent first kind variable cross-section friction pile 1 is excavated, prefabricated bottom plate wall 28 is inserted into Into the groove 11 of first kind variable cross-section friction pile 1, intermediate board wall 27 is installed afterwards, makes the rectangular cam 13 under intermediate board wall 27 It is close nested with the rectangular channel 14 of bottom plate wall 28, last installation top plate wall 26, rectangular cam 13 and intermediate plate under top plate wall 26 The rectangular channel 14 of wall 27 is close nested;
(7)Earth excavation:The earthwork between first kind variable cross-section friction pile 1 and the second class variable cross-section friction pile 2 is excavated, is excavated to change At the variable cross-section of section friction pile;
(8)Crossbeam 3 is constructed:Binding 3 reinforcing bar of crossbeam is simultaneously connected with the reserved steel bar of the second class variable cross-section friction pile 2, props up in time Mould and casting concrete;
(9)Installation is unidirectionally slidably connected 5:First kind variable cross-section friction pile 1 is fixed on will unidirectionally be slidably connected 5 one end of bolt Variable cross-section at, the other end is fixed on the endface of crossbeam 3;
(10)Construction road system:Laminated rubber bearing 6 is fastened on to the both ends of 3 top surface of crossbeam with bolt, with 3 end of crossbeam Distance is 500~700 ㎜, the lifting of rectangle single span groove profile road deck 7 is placed on laminated rubber bearing 6, by board-like rubber branch The bottom of the top plate and rectangle single span groove profile road deck 7 of seat 6 is fastened with bolt, finally on 7 upper berth of rectangle single span groove profile road deck If pavement structure;
(11)Construction hangar tunnel:Matrix pattern frame 21 is welded, and steel wire protection network 22 is installed to the space of matrix pattern frame 21; Rotation hinged-support 9, spring 10 are welded on to the corner of hangar tunnel matrix pattern frame 21, lifting places hangar tunnel matrix pattern frame 21 anti- At sliding pile top, weld rotation hinged-support 9, spring 10 and the built-in fitting 25 in stake top portion;
(12)Road baffle is set:Protection network is set between adjacent second class variable cross-section friction pile.
The present invention technical principle be:(1)Antiskid, vertical power transmission principle:Antiskid structure by first kind variable cross-section friction pile, Second class variable cross-section friction pile, crossbeam and the unidirectional structure that formed shape is H-shaped that is slidably connected, rectangle single span groove profile road deck position In the top surface of crossbeam;Two class friction piles are inserted into the steady soil below sliding surface, on the one hand, when slip mass gravity or its When he deforms or slide under the action of external cause, steady soil can balance slip mass to the drag of stake and be generated due to deformation Imposed load;On the other hand, when the Driving Loading born on the gravity of road deck and road surface is when on crossbeam, crossbeam Both ends are transferred force in the pile body below variable cross-section, are finally transferred force in steady soil.(2)Unloading principles:According to master Dynamic soil pressure principle, the dead weight of the soil body can generate horizontal loading, the cutouts soil body to retaining structure, you can reduce the soil body certainly Weight, so as to reduce load.(3)Hangar tunnel principle:Canopy face is set up at the top of two class friction piles, forms hangar tunnel formula space structure;Canopy face Safeguard structure is fixed on variable cross-section antiskid stake top with rotation hinged-support and spring, when the Rolling Stone on slip mass falls on canopy face, meeting Impact load is generated to canopy face, the steel wire protection network and spring fastening in canopy face can generate larger flexible deformation, according to ox Pause second and third law, and flexible deformation can significantly reduce impact load of the Rolling Stone to canopy face.

Claims (10)

1. a kind of hangar tunnel formula antiskid structure with roadnet, including antiskid structure, rectangle single span groove profile road deck(7), plate Wall(4), canopy face safeguard structure(8), it is characterised in that:The shape of antiskid structure is H-shaped, by first kind variable cross-section friction pile(1)、 Second class variable cross-section friction pile(2), crossbeam(3)Be unidirectionally slidably connected(5)Composition, first kind variable cross-section friction pile(1)Change Stake more than at section respectively opens a groove on two sides vertical with road direction(11), crossbeam(3)One end and the Two class variable cross-section friction piles(2)Variable cross-section at one-piece casting, other end is by being unidirectionally slidably connected(5)Become with the first kind and cut Face friction pile(1)Pile body be connected, crossbeam(3)Bottom surface and first kind variable cross-section friction pile(1)And the second class variable cross-section antiskid Stake(2)Variable cross-section platform be in same level;Unidirectionally it is slidably connected(5)By steel plate(15), tooth socket(16), pawl column (17), pawl(18)With rubber anti-collision block(19)It forms, tooth socket(16)With pawl column(17)It is respectively connected to one block of steel plate(15) Center, pawl column(17)It is inserted into tooth socket(16)Interior and pawl(18)With tooth socket(16)It is engaged nesting, two rubber anti-collision blocks (19)Front is opposite to be separately fixed at two blocks of steel plates(15)On, it is connected with tooth socket(16)Steel plate(15)Resist with first kind variable cross-section Sliding pile(1)Pile body be connected, be connected with pawl column(17)Steel plate(15)With crossbeam(3)End face center be connected;Board wall(4)Bag Include top plate wall(26), intermediate board wall(27)With bottom plate wall(28), during the face that contacts with each other of three classes board wall is respectively arranged with along longitudinal direction The rectangular cam of heart line(13)And rectangular channel(14), the rectangular cam of lower section board wall(13)The rectangular channel of embedded top board wall(14) In, make the mutually nested assembling of three classes board wall, board wall(4)The pillar at both ends(12)It is inserted into groove(11)With adjacent first kind variable cross-section Friction pile(1)Assembling is connected;Rectangle single span groove profile road deck(7)Pass through laminated rubber bearing(6)It is supported on crossbeam(3)Top Face;Canopy face safeguard structure(8)The matrix pattern frame being welded by shaped steel(21)With steel wire protection network(22)It forms, steel wire protection network (22)It is fixed on matrix pattern frame(21)Space top surface, canopy face safeguard structure(8)Upper end by rotation hinged-support(9)With first Class variable cross-section friction pile(1)The built-in fitting at top(25)Welding, lower end passes through spring(10)It is supported on the second class variable cross-section antiskid Stake(2)Top.
2. the hangar tunnel formula antiskid structure with roadnet according to claims 1, it is characterised in that:The antiskid The crossbeam of structure(3)With first kind variable cross-section friction pile(1)And the second class variable cross-section friction pile(2)It is rectangle, is mixed by reinforcing bar Solidifying soil pours;Groove(11)Positioned at first kind variable cross-section friction pile(1)Variable cross-section at more than pile body center side line at.
3. the hangar tunnel formula antiskid structure with roadnet according to claims 1 or 2, it is characterised in that:Described Groove(11)Bottom surface and first kind variable cross-section friction pile(1)Variable cross-section be in same level, top surface and upward slope variable cross-section Friction pile(1)Either flush;Groove(11)Cross sectional shape for T-shaped, be connected to form by outer rectangular section and interior rectangular section;Groove (11)Interior rectangular section it is wider than outer rectangular section.
4. the hangar tunnel formula antiskid structure with roadnet according to claims 1, it is characterised in that:Rectangle single span slot Type road deck(7)Length and adjacent similar friction pile stake in the heart away from identical, width is than first kind variable cross-section friction pile(1) With the second class variable cross-section friction pile(2)Interior spacing is small.
5. the hangar tunnel formula antiskid structure with roadnet according to claims 1, it is characterised in that:Described is unidirectional It is slidably connected(5)Tooth socket(16)For inner wall with two rows of unidirectional teeth, unidirectional odontoid is right-angled trapezium;Pawl column(17)In rectangular Body, two side are respectively provided with a pawl(18), pawl(18)With tooth socket(16)Interior unidirectional tooth matches, and pawl (18)Embedded tooth socket(16)In, tooth socket(16)With pawl column(17)Length it is identical.
6. the hangar tunnel formula antiskid structure with roadnet according to claims 1, it is characterised in that:The board wall (4)Height and groove(11)Height it is equal, length and first kind variable cross-section friction pile(1)Spacing it is equal;Pillar(12) Positioned at board wall(4)Both ends of the surface center at, pillar(12)Sectional dimension and groove(11)It is identical;Bottom plate wall(28)Lower end Face is straight, and there is rectangular cam in upper surface at center(13), intermediate board wall(27)Lower face have and rectangular cam(13)Match Rectangular channel(14), there is rectangular cam in upper surface(13), top plate wall(26)Lower face have rectangular channel(14), upper surface is straight.
7. a kind of hangar tunnel formula antiskid structure with roadnet according to claims 1, it is characterised in that:Described Rectangular cam(13)And rectangular channel(14)It is respectively positioned on board wall(4)It contacts with each other at the center in face, rectangular cam(13)Length with Board wall(4)Length it is identical.
8. the hangar tunnel formula antiskid structure with roadnet according to claims 1, it is characterised in that:The field word Shape frame(21)It is welded by I-steel end, matrix pattern frame(21)Width and first kind friction pile(1)With the second class Friction pile(2)Between stake in the heart away from identical, length is with adjacent similar friction pile stake in the heart away from identical;Matrix pattern frame(21) The top flange of space surrounding I-steel be provided with the fixation circular hole parallel with I-steel(29).
9. the hangar tunnel formula antiskid structure with roadnet according to claims 1, it is characterised in that:The steel wire Protection network(22)It is formed by braided steel wire, steel wire passes through fixed circular hole(29)It is fixed on matrix pattern frame(21)The I-steel edge of a wing On, steel wire diameter is less than fixed circular hole(29)Diameter.
10. a kind of hangar tunnel formula antiskid structure and construction method with roadnet, which is characterized in that its step is:
(1)Prospective design:The engineering geological condition of massif is reconnoitred, hydrometeorological condition analyzes the position for determining potential water use, Calculating design is carried out, determines the height of stake, spacing;
(2)Prefabricated board wall(4):By engineering design size board wall is made in factory(4), and it is transported to construction site;
(3)Construction stake holes:The position of friction pile is determined according to construction drawing, excavates first kind variable cross-section friction pile(1)With the second class Variable cross-section friction pile(2)Stake holes, and perform retaining wall;
(4)First kind variable cross-section friction pile(1)Construction:It lifts and places antiskid pile cages, pour first kind variable cross-section antiskid Stake(1);
(5)Second class variable cross-section friction pile(2)Construction:It lifts and places antiskid pile cages, pour the second class variable cross-section antiskid Stake(2), crossbeam is reserved at the variable cross-section of stake according to construction drawing(3)Reinforcing bar;
(6)Board wall(4)Construction:Excavate adjacent first kind variable cross-section friction pile(1)Between the earthwork, by prefabricated bottom plate wall (28)It is inserted into first kind variable cross-section friction pile(1)Groove(11)It is interior, intermediate board wall is installed afterwards(27), make intermediate board wall (27)Under rectangular cam(13)With bottom plate wall(28)Rectangular channel(14)It is close nested, top plate wall is finally installed(26), top plate Wall(26)Under rectangular cam(13)With intermediate board wall(27)Rectangular channel(14)It is close nested;
(7)Earth excavation:Excavate first kind variable cross-section friction pile(1)With the second class variable cross-section friction pile(2)Between the earthwork, excavate To the variable cross-section of variable cross-section friction pile;
(8)Crossbeam(3)Construction:Bind crossbeam(3)Reinforcing bar and with the second class variable cross-section friction pile(2)Reserved steel bar be connected, Timely formwork and casting concrete;
(9)Installation is unidirectionally slidably connected(5):It will be unidirectionally slidably connected with bolt(5)One end be fixed on first kind variable cross-section and resist Sliding pile(1)Variable cross-section at, the other end is fixed on crossbeam(3)Endface;
(10)Construction road system:By laminated rubber bearing(6)Crossbeam is fastened on bolt(3)The both ends of top surface, with crossbeam(3) The distance of end is 500~700 ㎜, by rectangle single span groove profile road deck(7)Lifting is placed in laminated rubber bearing(6)On, it will Laminated rubber bearing(6)Top plate and rectangle single span groove profile road deck(7)Bottom fastened with bolt, finally in rectangle single span slot Type road deck(7)Upper laying pavement structure;
(11)Construction hangar tunnel:Weld matrix pattern frame(21), and by steel wire protection network(22)It installs to matrix pattern frame(21)'s In space;Hinged-support will be rotated(9), spring(10)It is welded on hangar tunnel matrix pattern frame(21)Corner, lifting places hangar tunnel field Glyph framework(21)At antiskid stake top, make rotation hinged-support(9), spring(10)With the built-in fitting in stake top portion(25)Welding;
(12)Road baffle is set:Protection network is set between adjacent second class variable cross-section friction pile.
CN201810000388.3A 2018-01-02 2018-01-02 Shed tunnel type anti-skidding structure with road system and construction method Active CN108103867B (en)

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CN108612115A (en) * 2018-06-12 2018-10-02 兰州理工大学 A kind of separate type antiskid structure and construction method with vibration isolation road
CN110029600A (en) * 2019-05-05 2019-07-19 马德翼 Rockfall quick draining structure for mountain highway protection

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CN108612115A (en) * 2018-06-12 2018-10-02 兰州理工大学 A kind of separate type antiskid structure and construction method with vibration isolation road
CN110029600A (en) * 2019-05-05 2019-07-19 马德翼 Rockfall quick draining structure for mountain highway protection

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