CN110184957B - Construction method of shed tunnel and steel corrugated plate combined type wind and snow prevention system - Google Patents
Construction method of shed tunnel and steel corrugated plate combined type wind and snow prevention system Download PDFInfo
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- CN110184957B CN110184957B CN201910348583.XA CN201910348583A CN110184957B CN 110184957 B CN110184957 B CN 110184957B CN 201910348583 A CN201910348583 A CN 201910348583A CN 110184957 B CN110184957 B CN 110184957B
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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
- E01F7/02—Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
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Abstract
The invention relates to a construction method of a shed tunnel and steel corrugated plate combined type wind and snow prevention system, which comprises the following steps: 1) construction preparation; 2) the curved beam side die and the curved beam bottom die are supported; 3) hoisting a beam reinforcement cage; 4) performing concrete pouring construction on the arc-shaped cross beam; 5) building construction of the filled wall; 6) constructing a core column and a window hole lintel; 7) and (5) installing and constructing corrugated plates. The invention has the beneficial effects that: the bent beam side die and the bent beam bottom die are convenient to support, install and position, the structural integrity of the template is good, and the limiting strength of the template is high; meanwhile, the template support system is easy to move on site and high in bearing capacity, and the difficulty of template support construction can be effectively improved; the steel reinforcement cage is convenient to hoist and connect, easy to position on site, and capable of reducing damage to the steel reinforcement cage caused by hoisting on site; the arc-shaped beam concrete pouring control method is easy to control the concrete pouring of the arc-shaped beam and convenient to control the concrete compactness.
Description
Technical Field
The invention relates to a construction method of a shed tunnel and steel corrugated plate combined type wind and snow prevention system, which can improve the integrity of a construction structure, reduce the positioning difficulty of site construction, improve the site construction efficiency and improve the concrete pouring construction quality, and belongs to the field of road engineering.
Background
Along with the rapid development of highway construction, the highway construction environment is complicated and changeable, and inconvenience is brought to highway construction engineering in regions with large wind pressure and snow pressure. Considering factors such as site conditions, construction difficulty, personnel safety, reliability and convenience of engineering structures, construction difficulty and the like, the engineering usually adopts a shed tunnel structure scheme to prevent and treat natural disasters.
The assembled corrugated steel arch shed tunnel structure is characterized in that a reinforced concrete foundation with internal and external sides rigid integrally is arranged at the lower part of the assembled corrugated steel arch shed tunnel structure, a reinforced concrete side wall is arranged at the internal and external sides of the assembled corrugated steel arch shed tunnel structure, an external reinforced concrete retaining wall is arranged on the external reinforced concrete side wall, a corrugated steel plate arch shed is assembled on the upper end faces of the internal and external reinforced concrete side walls along the axial direction of the tunnel, and fillers and green grass plants are laid on the arch outer side of the steel plate arch shed according to the above. The structure has stronger adaptive deformation capability and simple and convenient operation and maintenance, but has large construction amount, and does not relate to construction methods of reducing the positioning difficulty of site construction, improving the concrete pouring construction quality and the like.
In summary, the existing construction method has better effect under proper working conditions, but the construction technology in the aspects of reducing the positioning difficulty of site construction, improving the concrete pouring construction quality and the like is still imperfect. In view of this, the invention is urgently needed to provide a construction method of a shed tunnel and steel corrugated plate combined type wind and snow prevention system, which can improve the integrity of a construction structure, reduce the positioning difficulty of site construction, improve the site construction efficiency and improve the concrete pouring construction quality.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a construction method for ecological protection of the side slope of the waste tire, which can not only improve the integrity of a construction structure, but also reduce the installation and positioning difficulty of the waste tire, improve the construction quality of the rapid trough excavation and save building materials.
The construction method of the shed tunnel and steel corrugated plate combined type wind and snow prevention system comprises the following steps:
1) construction preparation: determining the spatial position of the side column of the shed tunnel through field test, firstly arranging a column bottom foundation in a foundation soil layer at the lower part of the side column of the shed tunnel, and then pouring concrete of the side column of the shed tunnel; preparing a curved beam side die and a curved beam bottom die which meet the requirements, and binding a beam reinforcement cage;
2) and (3) supporting a curved beam side die and a curved beam bottom die: after the bearing capacity of the column bottom foundation and the shed tunnel side column meets the requirement, the lower surface of the movable bottom beam is provided with a movable roller, two rows of adjustable supporting piers are arranged on the two sides of the movable roller in a mirror symmetry manner, and a supporting pier limiting plate is arranged between the opposite adjustable supporting piers and the movable bottom beam; the movable bottom beam is sequentially provided with a movable support column, a top platform plate and a template support column, and the top end of the template support column is provided with a connecting rotating shaft and a template limiting body; hoisting the curved beam side die and the curved beam bottom die to the template limiting body, and connecting the curved beam side die and the curved beam bottom die through the template connecting falcon;
3) hoisting a beam reinforcement cage: inserting the rigid suspender between the adjacent connecting stirrups, and respectively connecting the upper layer hanging plate and the lower layer hanging plate at the lower end part of the rigid suspender with the upper layer longitudinal bar and the lower layer longitudinal bar; the top end of the rigid suspender is provided with a top hanging beam, so that after the top hanging beam is connected with external hoisting equipment through a flexible sling, the cross beam reinforcement cage is hung between the curved beam side die and the curved beam bottom die;
4) and (3) arc-shaped beam concrete pouring construction: arranging a beam bottom support body on the shed tunnel side column, arranging a tie bar anchor plate and a non-dismantling template on the top of the shed tunnel side column, and arranging a template tie bar between the tie bar anchor plate and the non-dismantling template; a curved supporting beam is arranged between the beam bottom supporting bodies opposite to the mirror images; a sliding connecting body is arranged between the curved supporting beam and the sliding top plate; a bottom plate connecting rod is arranged between the sliding top plate and the sliding bottom plate, and a collecting tank connecting rod is arranged between the sliding top plate and the residual slurry collecting tank; the lower surface of the sliding bottom plate is provided with a hanging plate adjusting rod and a grouting scraper, and a scraper rotating shaft is arranged at the joint of the sliding bottom plate and the grouting scraper; arranging a beam top supporting column and a column top platform at the vault part of the curved supporting beam, and arranging a rolling and pulling machine on the column top platform; a support pulling plate is arranged on the sliding top plate, and a rolling rope is arranged between the support pulling plate and the rolling machine; arranging a pouring funnel at the top of the pouring pipe, sequentially penetrating the bottom end of the pouring pipe through the sliding top plate and the sliding bottom plate, inserting the bottom end of the pouring pipe into the side mould of the curved beam, and performing concrete pouring construction;
5) and (3) masonry construction of the infilled wall: arranging a movable roller and a jacking support body between a platform bottom plate and a foundation soil layer, filling a gap between the platform bottom plate and the jacking support body with a jacking liner plate, and adjusting the height of the platform bottom plate by a height-adjusting bolt; a first lifting body is arranged on the platform bottom plate; after the platform top plate is lifted to a set height through the first lifting body, a fixed support pillar is arranged between the platform top plate and the platform bottom plate; arranging a second lifting body outside the platform bottom plate, and respectively connecting two ends of the second lifting body with the foundation soil layer and the cargo platform; a traction pull rope is arranged between the freight trolley on the freight platform and the filling wall body; taking out the jacking support body and the jacking base plate when the platform bottom plate moves; building a filling wall body and pouring construction of a ring beam under the window, and arranging a lighting window in the filling wall body;
6) and (3) core column and window hole lintel construction: a core column template and a lintel template are erected at the position of a lighting window between the filled walls, external limiting bodies are respectively arranged on the core column template and the lintel template, and a limiting body support rod is arranged between the opposite external limiting bodies; respectively pouring concrete into the core column template and the lintel template to form a core column and a window hole lintel;
7) corrugated plate installation and construction: arranging a top longitudinal beam on the top of the filling wall body; arranging a connecting hoop plate at the upper part of the shed tunnel side column, and arranging a column side platform at the outer side of the connecting hoop plate, which deviates from the shed tunnel side column; a bottom sliding chute and a platform baffle are arranged on the column side platform, and a column side inclined strut is arranged between the column side platform and the shed tunnel side column; hoisting the corrugated plate ceiling to the arc-shaped cross beam, and connecting the corrugated plate ceiling and the arc-shaped cross beam through corrugated plate anchor bars; a step connecting beam connected with the bottom sliding groove is arranged outside the arc-shaped cross beam, and a working step is arranged on the step connecting beam; a sliding track is arranged at the joint of the stepping connecting beam and the bottom sliding chute.
Preferably, the method comprises the following steps: step 2), the adjusting height of the adjustable supporting pier is 5-20 mm larger than that of the movable roller, and the movable roller is made of 6-inch plastic; the template limiting body consists of a template bottom supporting plate, a template side limiting rib and a template top limiting rib, and is arranged on the outer sides of the curved beam side die and the curved beam bottom die; the length of the plate top limiting rib is adjustable and is vertically connected with the plate side limiting rib; the template bottom supporting plate is tightly attached to the curved beam bottom die, and the template bottom supporting plate is vertically connected with the template side supporting plate.
Preferably, the method comprises the following steps: step 1) and step 3) the crossbeam steel reinforcement cage is indulged the muscle by the upper strata, the lower floor is indulged the muscle and is constituteed with the connector stirrup, and the muscle is indulged to the upper strata and the lower floor is indulged and evenly sets up the connector stirrup on the muscle.
Preferably, the method comprises the following steps: step 4), the beam bottom supporting body consists of a supporting body hoop, a supporting body transverse plate and a supporting body vertical plate, the supporting body hoop is connected with the shed tunnel side column, the supporting body transverse plate is connected with the supporting body hoop, and the supporting body vertical plate is vertically connected with the supporting body transverse plate so that the supporting body transverse plate and the supporting body vertical plate are connected with the curve supporting beam; the curve supporting beam is arranged on the upper parts of the curved beam side die and the curved beam bottom die; the supporting pulling plate is formed by rolling a steel plate, the cross section of the supporting pulling plate is L-shaped, the supporting pulling plate is arranged on two sides of the curve supporting beam in pairs, and a moving rolling shaft and a rolling shaft baffle plate are arranged between the bottom end and the curve supporting beam.
Preferably, the method comprises the following steps: step 5), the top plate of the platform is made of a steel plate or an alloy plate, and a safety guardrail is arranged at the blank edge; the cargo carrying platform is made of steel plates or alloy plates, one side of the cargo carrying platform is connected with a platform top plate, other side edges are provided with platform outer baffles, and the cargo carrying platform is provided with a cargo carrying trolley; one end of the traction pull rope is connected with the freight trolley, and the other end of the traction pull rope is connected with the rolling and pulling equipment.
Preferably, the method comprises the following steps: step 6) the external limiting body consists of a limiting connecting plate, a limiting clamping plate, a fastening bolt and a bolt baffle plate, a connecting chute is arranged between the limiting clamping plate and the limiting connecting plate, the fastening bolt is arranged between the bolt baffle plate and the limiting clamping plate, and the connecting chute is connected with the limiting clamping plate through an internal sliding plate; the spacing body support rod adopts a screw or a steel pipe with adjustable length.
Preferably, the method comprises the following steps: and 7) the platform baffle is arranged on the outer side of the column side platform, a transverse limiting plate is arranged on the platform baffle facing the side column side of the shed tunnel, and the transverse limiting plate is firmly connected with the sliding rail through a positioning bolt.
The invention has the beneficial effects that:
(1) the bent beam side die and the bent beam bottom die are convenient to support, install and position, the structural integrity of the template is good, and the limiting strength of the template is high; meanwhile, the template supporting system is easy to move on site and high in bearing capacity, and the difficulty of template supporting construction can be effectively improved.
(2) The steel reinforcement cage is convenient to hoist and connect, easy to position on site, and capable of reducing damage to the steel reinforcement cage caused by hoisting on site.
(3) The arc-shaped beam concrete pouring control is easy, and the concrete compactness is convenient to control; meanwhile, leveling construction can be carried out by means of the grouting hanging plate, and surplus cement slurry is recycled through the surplus slurry collecting groove.
(4) The wall filling work platform is convenient to erect, easy to move on site and high in bearing capacity; meanwhile, the difficulty in supporting the template at the window opening can be effectively reduced.
(5) The corrugated plate is easy to install and position, has good structural integrity, can reduce the difficulty of the arrangement of a construction structure, and improves the connection between the corrugated plate and a shed tunnel structure.
Drawings
FIG. 1 is a flow chart of the construction of the combined wind and snow protection system of the shed tunnel and the corrugated steel plates;
FIG. 2 is a schematic diagram of a construction structure for supporting a curved beam side mold and a curved beam bottom mold;
FIG. 3 is a schematic view of the form retainer of FIG. 2;
FIG. 4 is a schematic diagram of a hoisting construction structure of an arc-shaped cross beam reinforcement cage;
FIG. 5 is a schematic diagram of a concrete pouring construction of an arc-shaped cross beam;
FIG. 6 is a schematic view of the connection structure of the bottom beam support and the side columns of the shed tunnel in FIG. 5;
FIG. 7 is a schematic view of the connection structure of the sliding connection body and the curved support beam in FIG. 5;
FIG. 8 is a schematic view of a infilled wall masonry construction structure;
FIG. 9 is a schematic diagram of a core column and window hole lintel construction structure;
FIG. 10 is a schematic view of the external limiting stopper shown in FIG. 9;
FIG. 11 is a schematic view of a corrugated plate installation structure;
FIG. 12 is an elevation view of the combined wind and snow protection system of the shed tunnel and corrugated plate of the present invention.
Description of reference numerals: 1-shed tunnel side column; 2-a foundation soil layer; 3-column bottom foundation; 4-curved beam side mold; 5-bending the bottom die of the beam; 6-beam reinforcement cage; 7-moving the bottom beam; 8-moving the roller; 9-adjustable supporting piers; 10-supporting pier limiting plates; 11-moving the brace; 12-a top deck plate; 13-formwork struts; 14-connecting the rotating shaft; 15-a template limiting body; 16-template connecting falcon; 17-a rigid boom; 18-connecting stirrups; 19-upper layer hanging plate; 20-lower layer hanging plate; 21-upper layer longitudinal ribs; 22-lower layer longitudinal ribs; 23-a top hanging beam; 24-a flexible sling; 25-an arc-shaped cross beam; 26-a beam bottom support; 27-tie anchor plate; 28-detaching-free template; 29-form lacing wire; 30-curved support beams; 31-a sliding top plate; 32-a slip connector; 33-a glide baseplate; 34-a floor link; 35-residual pulp collecting tank; 36-a holding tank link; 37-hanging board adjusting rod; 38-grouting scraper plate; 39-a scraper blade rotating shaft; 40-beam jacking columns; 41-column top platform; 42-a rolling and pulling machine; 43-supporting pulling plate; 44-rolling and pulling the rope; 45-perfusion tube; 46-a pouring funnel; 47-filling the wall; 48-platform floor; 49-jacking the support body; 50-jacking a cushion plate; 51-height adjustment bolt; 52-first lifting body; 53-platform top plate; 54-fixed support columns; 55-a second lifting body; 56-cargo platform; 57-freight car; 58-a traction pull rope; 59-stem form; 60-lintel template; 61-external limiting body; 62-a spacing body brace rod; 63-core column; 64-window hole lintel; 65-connecting hoop plate; 66-column side platform; 67-bottom chute; 68-a platform baffle; 69-column side sprag; 70-corrugated board ceiling; 71-corrugated plate anchor bars; 72-step connecting beam; 73-working step; 74-a glide track; 75-lower ring beam of window; 76-lighting window; 77-roof rail; 78-template bottom supporting plate; 79-template side supporting plate; 80-plate side limiting ribs; 81-plate top limit ribs; 82-support body hoop; 83-support body transverse plate; 84-a support riser; 85-moving rollers; 86-roller baffles; 87-safety barrier; 88-a platform outer baffle; 89-limit connecting plates; 90-limiting clamping plates; 91-fastening bolts; 92-bolt guards; 93-connecting sliding chute; 94-transverse limiting plate; 95-positioning bolts; 96-built-in slide plate.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Referring to fig. 1, the construction method of the shed tunnel and steel corrugated plate combined type wind and snow protection system comprises the following construction steps:
1) construction preparation: the spatial position of the side column 1 of the shed tunnel is determined through field test, a column bottom foundation 3 is arranged in a foundation soil layer 2 at the lower part of the side column 1 of the shed tunnel, and then concrete of the side column 1 of the shed tunnel is poured; preparing a curved beam side die 4 and a curved beam bottom die 5 which meet the requirements, and binding a beam reinforcement cage 6;
2) and (3) supporting a curved beam side die and a curved beam bottom die: after the bearing capacity of the column bottom foundation 3 and the shed tunnel side column 1 meets the requirement, the lower surface of the movable bottom beam 7 is provided with a movable roller 8, two rows of adjustable supporting piers 9 are arranged on the two sides of the movable roller 8 in a mirror symmetry manner, and a supporting pier limiting plate 10 is arranged between the opposite adjustable supporting piers 9 and the movable bottom beam 7; the movable bottom beam 7 is sequentially provided with a movable support column 11, a top platform plate 12 and a template support column 13, and the top end of the template support column 13 is provided with a connecting rotating shaft 14 and a template limiting body 15; hoisting the curved beam side die 4 and the curved beam bottom die 5 to the template limiting body 15, and connecting the curved beam side die 4 and the curved beam bottom die 5 through a template connecting tenon 16;
3) hoisting a beam reinforcement cage: inserting the rigid hanger bar 17 between the adjacent connecting stirrups 18, and respectively connecting an upper layer hanging plate 19 and a lower layer hanging plate 20 at the lower end part of the rigid hanger bar 17 with an upper layer longitudinal rib 21 and a lower layer longitudinal rib 22; the top end of the rigid suspender 17 is provided with a top hanging beam 23, so that after the top hanging beam 23 is connected with external hoisting equipment through a flexible sling 24, the cross beam reinforcement cage 6 is hung between the curved beam side die 4 and the curved beam bottom die 5;
4) and (3) arc-shaped beam concrete pouring construction: a beam bottom support body 26 is arranged on the shed tunnel side column 1, a tie bar anchor plate 27 and a non-dismantling template 28 are arranged at the top of the shed tunnel side column 1, and a template tie bar 29 is arranged between the tie bar anchor plate 27 and the non-dismantling template 28; a curvilinear support beam 30 is disposed between the mirror-image opposing beam bottom supports 26; a sliding connection body 32 is arranged between the curved support beam 30 and the sliding top plate 31; a bottom plate connecting rod 34 is arranged between the sliding top plate 31 and the sliding bottom plate 33, and a collecting tank connecting rod 36 is arranged between the sliding top plate 31 and the residual slurry collecting tank 35; a hanging plate adjusting rod 37 and a grouting scraper 38 are arranged on the lower surface of the sliding bottom plate 33, and a scraper rotating shaft 39 is arranged at the joint of the sliding bottom plate 33 and the grouting scraper 38; arranging a beam top supporting column 40 and a column top platform 41 at the arch top part of the curved supporting beam 30, and arranging a rolling and pulling machine 42 on the column top platform 41; a supporting pull plate 43 is arranged on the sliding top plate 31, and a rolling rope 44 is arranged between the supporting pull plate 43 and the rolling machine 42; a pouring funnel 46 is arranged at the top of the pouring pipe 45, and the bottom end of the pouring pipe 45 sequentially penetrates through the sliding top plate 31 and the sliding bottom plate 33 and is inserted into the curved beam side die 4 for concrete pouring construction;
5) and (3) masonry construction of the infilled wall: a movable roller 8 and a jacking support body 49 are arranged between a platform bottom plate 48 and a foundation soil layer 2, a jacking cushion plate 50 is adopted to fill the gap between the platform bottom plate 48 and the jacking support body 49, and the height of the platform bottom plate 48 is adjusted through an heightening bolt 51; a first lifting body 52 is provided on the platform floor 48; after the platform top plate 53 is lifted to a set height through the first lifting body 52, a fixed support column 54 is arranged between the platform top plate 53 and the platform bottom plate 48; a second lifting body 55 is arranged outside the platform bottom plate 48, and two ends of the second lifting body 55 are respectively connected with the foundation soil layer 2 and the cargo platform 56; a traction pull rope 58 is arranged between the cargo carrying trolley 57 on the cargo platform 56 and the filling wall body 47; the jacking support 49 and the jacking cushion plate 50 are taken out when the platform bottom plate 48 moves; constructing a filler wall body 47 and pouring the lower ring beam 75 of the window, and arranging a lighting window 76 in the filler wall body 47;
6) and (3) constructing the core column 63 and the window hole lintel 64: a core column template 59 and a lintel template 60 are erected at the position of a lighting window 76 between the infilled walls 47, external limiting bodies 61 are respectively arranged on the core column template 59 and the lintel template 60, and a limiting body support rod 62 is arranged between the opposite external limiting bodies 61; respectively pouring concrete into the core column template 59 and the lintel template 60 to form a core column 63 and a window hole lintel 64;
7) corrugated plate installation and construction: a top longitudinal beam 77 is arranged on the top of the filling wall body 47; arranging a connecting hoop plate 65 on the upper part of the shed tunnel side column 1, and arranging a column side platform 66 on the outer side of the connecting hoop plate 65, which deviates from the shed tunnel side column 1; a bottom sliding groove 67 and a platform baffle 68 are arranged on the column side platform 66, and a column side inclined strut 69 is arranged between the column side platform 66 and the shed tunnel side column 1; hoisting the corrugated plate ceiling 70 onto the arc-shaped cross beam 25, and connecting the corrugated plate ceiling 70 and the arc-shaped cross beam 25 through corrugated plate anchor bars 71; a step connecting beam 72 connected with the bottom sliding groove 67 is arranged outside the arc-shaped cross beam 25, and a working step 73 is arranged on the step connecting beam 72; a sliding track 74 is arranged at the joint of the stepping connecting beam 72 and the bottom sliding groove 67.
Referring to fig. 2 to 12, in the combined wind and snow protection system of the shed tunnel and the corrugated steel plates, a column bottom foundation 3 is arranged at the lower part of a side column 1 of the shed tunnel; adjustable supporting piers 9 are arranged on two sides of a movable roller 8 on the lower surface of the movable bottom beam 7, and a connecting rotating shaft 14 and a template limiting body 15 are arranged at the top end of a template support column 13; the lower end part of the rigid suspender 17 is provided with an upper layer suspension plate 19 and a lower layer suspension plate 20; a sliding connection body 32 is arranged between the curved support beam 30 and the sliding top plate 31; a hanging plate adjusting rod 37 and a grouting scraper 38 are arranged on the lower surface of the sliding bottom plate 33; the first lifting body 52 is arranged at the upper part of the platform bottom plate 48, and two ends of the second lifting body 55 at the outer side are respectively connected with the foundation soil layer 2 and the cargo platform 56; external limiting bodies 61 are respectively arranged on the core column template 59 and the lintel template 60; a stepping connecting beam 72 connected with the bottom sliding groove 67 is arranged outside the arc-shaped cross beam 25, and a sliding track 74 is arranged at the joint of the stepping connecting beam 72 and the bottom sliding groove 67.
The shed tunnel side column 1 is made of concrete with the strength grade of C35, and the section dimension is 400 multiplied by 400 mm.
The column bottom foundation 3 adopts a reinforced concrete independent foundation with the strength grade of C30.
The foundation soil layer 2 is cohesive soil in a hard plastic state.
The curved beam side die 4 and the curved beam bottom die 5 both adopt aluminum alloy templates with the thickness of 3 mm.
The beam reinforcement cage 6 consists of an upper layer longitudinal bar 21, a lower layer longitudinal bar 22 and a connecting stirrup 18; the upper longitudinal bar 21 and the lower longitudinal bar 22 both adopt threaded steel bars with the diameter of 22mm, and the connecting stirrup 18 adopts smooth steel bars with the diameter of 10 mm.
The movable bottom beam 7 is formed by rolling H-shaped steel with the specification of 200 multiplied by 8 multiplied by 12.
The movable roller 8 is made of 6-inch plastic.
The adjustable supporting pier 9 adopts a screw rod with the diameter of 30mm, and the adjusting height is 10mm larger than the moving roller 8.
The movable stay 11 is made of H-shaped steel with the specification of 150X 7X 10.
The formwork struts 13 are all steel pipes with a diameter of 100mmm and a wall thickness of 1 mm.
The top deck plate 12 is a 1mm thick steel plate.
The connecting rotating shaft 14 adopts a spherical hinge with the diameter of 100 mm.
The template limiting body 15 consists of a template bottom bracing plate 78, a template side bracing plate 79, a plate side limiting rib 80 and a plate top limiting rib 81; wherein the template bottom supporting plate 78 and the template side supporting plate 79 are made of alloy plates with the thickness of 2 mm; the plate-side limiting rib 80 is an alloy plate with the thickness of 2 mm; the plate top limiting rib 81 is formed by combining a screw rod with the diameter of 30mm and a bolt, and the length of the screw rod is adjustable.
The rigid hanger rods 17 are made of steel pipes with the diameter of 60 mm.
The upper layer hanger plate 19 and the lower layer hanger plate 20 are both formed by rolling steel plates with the thickness of 2mm, and the cross section of each steel plate is arc-shaped.
The top suspension beam 23 is formed by rolling H-shaped steel with the specification of 100 × 100 × 6 × 8.
The flexible slings 24 are steel strands 15.24mm in diameter.
The arc-shaped cross beam 25 is of a reinforced concrete structure, and the strength grade of concrete is C30.
The beam bottom support 26 is composed of a support hoop 82, a support transverse plate 83 and a support vertical plate 84. The support body hoop 82 is formed by rolling a steel plate with the thickness of 1 mm. The supporting body transverse plate 83 and the supporting body vertical plate 84 are respectively formed by rolling steel plates with the thickness of 1cm and 2 mm.
The lacing wire anchor plate 27 is made of a steel plate with the thickness of 2mm, the length of the lacing wire anchor plate is 5cm, and the width of the lacing wire anchor plate is 2 cm.
The demolition-free formwork 28 is a concrete slab having a thickness of 2cm, a strength rating of C30, and a width of 6 cm.
The template tie bar 29 is made of steel bars with the diameter of 10 mm.
The curved support beam 30 is rolled from a steel plate with a thickness of 10mm and a width of 30 cm.
The sliding top plate 31 and the sliding bottom plate 33 are both made of alloy plates with the thickness of 2 mm.
The sliding connector 32 is formed by rolling a steel plate with the thickness of 1 mm.
The bottom plate connecting rod 34 and the collecting tank connecting rod 36 are made of steel pipe materials with the diameter of 30 mm.
The residual slurry collecting tank 35 is formed by rolling a steel plate with the thickness of 0.5mm, and is 40cm in width, 20cm in height and 40cm in length.
The hanging plate adjusting rod 37 is composed of a screw rod with the diameter of 10mm and a bolt, and the length is adjustable.
The grouting scraper 38 is cut from an iron plate with a thickness of 0.5 mm.
The scraper shaft 39 is a stainless steel shaft having a diameter of 1 cm.
The beam support pillar 40 is made of H-shaped steel having a specification of 100 × 100 × 6 × 8.
The column top platform 41 is formed by rolling a steel plate with the thickness of 2 mm.
The winding and pulling machine 42 adopts a 380v motor winding machine.
The supporting pulling plate 43 is formed by rolling a steel plate with the thickness of 2 mm.
The reeling rope 44 is a steel rope with a diameter of 15.24 mm.
The perfusion tube 45 is a steel tube with a diameter of 100 mm.
The pouring funnel 46 is welded by steel plates with a thickness of 0.1 mm.
The infill wall 47 is made of air-bubble concrete bricks.
The platform bottom plate 48 is a steel plate with the thickness of 1 cm; the jacking support body 49 adopts a pressure jack, and the jacking tonnage is 30 tons; the jacking cushion plate 50 is made of a steel plate with the thickness of 2 mm.
The height-adjusting bolt 51 is a bolt having a diameter of 30 mm.
The first lifting body 52 and the second lifting body 55 are both formed by combining a steel sheet and a rotating shaft, the width of the steel sheet is 5cm and 3cm respectively, and the steel sheet is connected with an external jacking device.
The platform top plate 53 is made of a steel plate having a thickness of 0.2 mm.
The fixing stay 54 is made of H-shaped steel with a specification of 200X 8X 12.
The cargo platform 56 is rolled from a steel plate having a thickness of 0.1 mm.
The freight car 57 is a four-wheel tractor.
The pull rope 58 is a steel wire rope with a diameter of 10 mm.
The core column template 59 and the lintel template 60 are both made of aluminum alloy templates with a thickness of 3 mm.
The external limiting body 61 is composed of a limiting connecting plate 89, a limiting clamping plate 90, a fastening bolt 91 and a bolt baffle 92. The limiting connecting plate 89, the limiting clamping plate 90 and the bolt baffle 92 are all formed by rolling steel plates with the thickness of 1 mm. The fastening bolt 91 is a stainless steel bolt having a diameter of 10 mm.
The spacing body brace rod 62 is composed of a steel pipe with the diameter of 60mm and a bolt, and the length is adjustable.
The core column 63, the window opening lintel 64 and the window lower ring beam 75 are all of concrete structures, and the concrete strength grade is C30.
The connecting hoop plate 65 is formed by rolling a steel plate with the thickness of 2 mm.
The column-side platform 66 is rolled from a steel plate having a thickness of 1cm and a width of 40 cm.
The bottom chute 67 is made of a steel plate with a thickness of 1mm, has a width of 20cm and a height of 2cm, and has a width of 2cm and a height of 1cm, and is connected with the sliding rail 74. The sliding rail 74 is formed by rolling a steel plate with a thickness of 10 mm.
The platform baffle 68 is rolled from a steel plate with a thickness of 10 mm.
The corrugated plate ceiling 70 is made of 316 stainless steel corrugated plates.
The column-side sprag 69 is made of a steel pipe having a diameter of 50 mm.
Corrugated plate anchor bars 71 are threaded steel bars with a diameter of 16 mm.
The step connecting beam 72 is formed by rolling a steel plate with the thickness of 2cm and the width of 50 cm.
The top rail 77 is of reinforced concrete material strength grade C30.
The working steps 73 are formed by rolling a steel plate with the thickness of 1cm and the width of 6 cm.
The width of the daylight window 76 is 2.4m and the height is 3.6 m.
The roller baffle 86, the platform outer baffle 88 and the transverse limiting plate 94 are formed by rolling steel plates with the thickness of 2 mm.
The moving roller 85 is a stainless steel roller having a diameter of 2 cm.
The safety barrier 87 is 1m high and is formed by rolling a steel plate with the thickness of 1 mm.
The positioning bolt 95 is a stainless steel bolt with a diameter of 16mm
The connecting sliding groove 93 is formed by welding steel plates with the thickness of 1mm, the width of the connecting sliding groove is 10cm, the height of the connecting sliding groove is 2cm, the connecting sliding groove is connected with the limiting clamping plate 90 through a built-in sliding plate 96, and the built-in sliding plate 96 is made of steel plates with the thickness of 2 mm.
Claims (7)
1. The construction method of the shed tunnel and steel corrugated plate combined type wind and snow prevention system is characterized by comprising the following steps of: the method comprises the following construction steps:
1) construction preparation: the spatial position of the side column (1) of the shed tunnel is determined through field test, a column bottom foundation (3) is arranged in a foundation soil layer (2) at the lower part of the side column (1) of the shed tunnel, and then concrete is poured into the side column (1) of the shed tunnel; preparing a curved beam side die (4) and a curved beam bottom die (5) which meet the requirements, and binding a beam reinforcement cage (6);
2) and (3) supporting a curved beam side die and a curved beam bottom die: after the bearing capacity of the column bottom foundation (3) and the shed tunnel side column (1) meets the requirement, the lower surface of the movable bottom beam (7) is provided with a movable roller (8), two rows of adjustable supporting piers (9) are arranged on the two sides of the movable roller (8) in a mirror symmetry manner, and a supporting pier limiting plate (10) is arranged between the opposite adjustable supporting piers (9) and the movable bottom beam (7); a movable support column (11), a top platform plate (12) and a template support column (13) are sequentially arranged on the movable bottom beam (7), and a connecting rotating shaft (14) and a template limiting body (15) are arranged at the top end of the template support column (13); hoisting the curved beam side die (4) and the curved beam bottom die (5) to a template limiting body (15), and connecting the curved beam side die (4) and the curved beam bottom die (5) through a template connecting tenon (16);
3) hoisting a beam reinforcement cage: inserting a rigid suspension rod (17) between adjacent connecting stirrups (18), and respectively connecting an upper-layer suspension plate (19) and a lower-layer suspension plate (20) at the lower end part of the rigid suspension rod (17) with an upper-layer longitudinal rib (21) and a lower-layer longitudinal rib (22); a top hanging beam (23) is arranged at the top end of the rigid hanger rod (17), so that after the top hanging beam (23) is connected with external hoisting equipment through a flexible sling (24), the cross beam reinforcement cage (6) is hung between the curved beam side die (4) and the curved beam bottom die (5);
4) and (3) arc-shaped beam concrete pouring construction: a beam bottom support body (26) is arranged on the shed tunnel side column (1), a tie bar anchor plate (27) and a non-dismantling template (28) are arranged at the top of the shed tunnel side column (1), and a template tie bar (29) is arranged between the tie bar anchor plate (27) and the non-dismantling template (28); arranging a curvilinear support beam (30) between mirror-image opposing beam bottom supports (26); a sliding connecting body (32) is arranged between the curved supporting beam (30) and the sliding top plate (31); a bottom plate connecting rod (34) is arranged between the sliding top plate (31) and the sliding bottom plate (33), and a collecting tank connecting rod (36) is arranged between the sliding top plate (31) and the residual slurry collecting tank (35); a hanging plate adjusting rod (37) and a grouting scraper (38) are arranged on the lower surface of the sliding bottom plate (33), and a scraper rotating shaft (39) is arranged at the joint of the sliding bottom plate (33) and the grouting scraper (38); arranging a beam top supporting column (40) and a column top platform (41) at the arch top part of the curved supporting beam (30), and arranging a rolling and pulling machine (42) on the column top platform (41); a supporting pull plate (43) is arranged on the sliding top plate (31), and a rolling rope (44) is arranged between the supporting pull plate (43) and the rolling machine (42); a pouring funnel (46) is arranged at the top of the pouring pipe (45), and the bottom end of the pouring pipe (45) sequentially penetrates through the sliding top plate (31) and the sliding bottom plate (33) and is inserted into the curved beam side mold (4) for concrete pouring construction;
5) and (3) masonry construction of the infilled wall: a movable roller (8) and a jacking support body (49) are arranged between the platform bottom plate (48) and the foundation soil layer (2), a jacking liner plate (50) is adopted to fill the gap between the platform bottom plate (48) and the jacking support body (49), and the height of the platform bottom plate (48) is adjusted through a height adjusting bolt (51); arranging a first lifting body (52) on the platform bottom plate (48); after the platform top plate (53) is lifted to a set height through the first lifting body (52), a fixed support column (54) is arranged between the platform top plate (53) and the platform bottom plate (48); a second lifting body (55) is arranged on the outer side of the platform bottom plate (48), and two ends of the second lifting body (55) are respectively connected with the foundation soil layer (2) and the cargo platform (56); a traction pull rope (58) is arranged between a cargo carrying trolley (57) on the cargo platform (56) and the filling wall body (47); the jacking support body (49) and the jacking backing plate (50) are taken out when the platform bottom plate (48) moves; building a filling wall body (47) and pouring construction of a ring beam (75) under a window, and arranging a lighting window (76) in the filling wall body (47);
6) and (3) core column and window hole lintel construction: a core column template (59) and a lintel template (60) are erected at the position of a lighting window (76) between filling walls (47), external limiting bodies (61) are respectively arranged on the core column template (59) and the lintel template (60), and a limiting body support rod (62) is arranged between the opposite external limiting bodies (61); respectively pouring concrete into the core column template (59) and the lintel template (60) to form a core column (63) and a window hole lintel (64);
7) corrugated plate installation and construction: a top longitudinal beam (77) is arranged at the top of the filling wall body (47); a connecting hoop plate (65) is arranged at the upper part of the shed tunnel side column (1), and a column side platform (66) is arranged at the outer side of the connecting hoop plate (65) away from the shed tunnel side column (1); a bottom sliding groove (67) and a platform baffle (68) are arranged on the column side platform (66), and a column side inclined strut (69) is arranged between the column side platform (66) and the shed tunnel side column (1); hoisting the corrugated plate ceiling (70) to the arc-shaped cross beam (25), and connecting the corrugated plate ceiling (70) and the arc-shaped cross beam (25) through corrugated plate anchor bars (71); a step connecting beam (72) connected with the bottom sliding groove (67) is arranged outside the arc-shaped cross beam (25), and a working step (73) is arranged on the step connecting beam (72); a sliding track (74) is arranged at the joint of the stepping connecting beam (72) and the bottom sliding groove (67).
2. The construction method of the shed tunnel and steel corrugated plate combined type wind and snow prevention system according to claim 1, characterized in that: step 2), the adjusting height of the adjustable supporting pier (9) is 5-20 mm larger than that of the movable roller (8), and the movable roller is made of 6-inch plastic; the template limiting body (15) consists of a template bottom supporting plate (78), a template side supporting plate (79), a plate side limiting rib (80) and a plate top limiting rib (81), and the template limiting body (15) is arranged on the outer sides of the curved beam side die (4) and the curved beam bottom die (5); the length of the plate top limiting rib (81) is adjustable and is vertically connected with the plate side limiting rib (80); the template bottom support plate (78) is tightly attached to the curved beam bottom die (5), and the template bottom support plate (78) is vertically connected with the template side support plate (79).
3. The construction method of the shed tunnel and steel corrugated plate combined type wind and snow prevention system according to claim 1, characterized in that: step 1) and step 3) the beam reinforcement cage (6) is composed of an upper layer longitudinal rib (21), a lower layer longitudinal rib (22) and a connecting stirrup (18), and the upper layer longitudinal rib (21) and the lower layer longitudinal rib (22) are uniformly provided with the connecting stirrup (18).
4. The construction method of the shed tunnel and steel corrugated plate combined type wind and snow prevention system according to claim 1, characterized in that: step 4), the beam bottom supporting body (26) consists of a supporting body hoop (82), a supporting body transverse plate (83) and a supporting body vertical plate (84), the supporting body hoop (82) is connected with the shed tunnel side column (1), the supporting body transverse plate (83) is connected with the supporting body hoop (82), the supporting body vertical plate (84) is vertically connected with the supporting body transverse plate (83), and the supporting body transverse plate (83) and the supporting body vertical plate (84) are connected with the curve supporting beam (30); the curved support beam (30) is arranged on the upper parts of the curved beam side die (4) and the curved beam bottom die (5); the supporting pulling plate (43) is formed by rolling a steel plate, the cross section of the supporting pulling plate is L-shaped, the supporting pulling plate is arranged on two sides of the curve supporting beam (30) in pairs, and a moving rolling shaft (85) and a rolling shaft baffle (86) are arranged between the bottom end of the supporting pulling plate and the curve supporting beam (30).
5. The construction method of the shed tunnel and steel corrugated plate combined type wind and snow prevention system according to claim 1, characterized in that: step 5), the platform top plate (53) is made of a steel plate or an alloy plate, and a safety guardrail (87) is arranged on the side close to the hollow edge; the cargo platform (56) is made of steel plates or alloy plates, one side of the cargo platform is connected with the platform top plate (53), other empty edges are provided with platform outer baffles (88), and the cargo platform (56) is provided with a cargo carrying trolley (57); one end of the traction pull rope (58) is connected with the freight trolley (57), and the other end is connected with the rolling and pulling equipment.
6. The construction method of the shed tunnel and steel corrugated plate combined type wind and snow prevention system according to claim 1, characterized in that: step 6), the external limiting body (61) consists of a limiting connecting plate (89), a limiting clamping plate (90), a fastening bolt (91) and a bolt baffle (92), a connecting sliding groove (93) is arranged between the limiting clamping plate (90) and the limiting connecting plate (89), the fastening bolt (91) is arranged between the bolt baffle (92) and the limiting clamping plate (90), and the connecting sliding groove (93) is connected with the limiting clamping plate (90) through an internal sliding plate (96); the limiting body support rod (62) adopts a screw or a steel pipe with adjustable length.
7. The construction method of the shed tunnel and steel corrugated plate combined type wind and snow prevention system according to claim 1, characterized in that: and 7), the platform baffle (68) is arranged on the outer side of the column side platform (66), a transverse limiting plate (94) is arranged on the side, facing the shed tunnel side column (1), of the platform baffle (68), and the transverse limiting plate (94) is firmly connected with the sliding rail (74) through a positioning bolt (95).
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| CN201910348583.XA CN110184957B (en) | 2019-04-28 | 2019-04-28 | Construction method of shed tunnel and steel corrugated plate combined type wind and snow prevention system |
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| CN201910348583.XA CN110184957B (en) | 2019-04-28 | 2019-04-28 | Construction method of shed tunnel and steel corrugated plate combined type wind and snow prevention system |
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| CN110777835B (en) * | 2019-10-31 | 2021-04-27 | 安徽省路港工程有限责任公司 | Construction method of steel pipe pile supporting pile foundation bearing platform formwork system |
| CN111441268A (en) * | 2020-04-11 | 2020-07-24 | 新疆交通建设集团股份有限公司 | Windproof snow shed tunnel construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2610661B1 (en) * | 1987-02-10 | 1989-05-05 | Plantier Jean Louis | ARCHED STRUCTURE FOR PROTECTION AGAINST SNOW |
| CN102493328A (en) * | 2011-11-22 | 2012-06-13 | 中国科学院水利部成都山地灾害与环境研究所 | Flexible protective shed-tunnel and method for designing same |
| CN207512625U (en) * | 2017-10-30 | 2018-06-19 | 吉林省路桥设计股份有限公司 | A kind of hangar tunnel |
| CN107988926A (en) * | 2017-11-27 | 2018-05-04 | 云南公投建设集团设计研究院有限公司 | A kind of assembled corrugated steel arch shed hole structure |
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