CN110306594A - Support system is gone along with sb. to guard him applied to open cut backfill formula constructing tunnel - Google Patents
Support system is gone along with sb. to guard him applied to open cut backfill formula constructing tunnel Download PDFInfo
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- CN110306594A CN110306594A CN201910596816.8A CN201910596816A CN110306594A CN 110306594 A CN110306594 A CN 110306594A CN 201910596816 A CN201910596816 A CN 201910596816A CN 110306594 A CN110306594 A CN 110306594A
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- bracing members
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- cant beam
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Support system is gone along with sb. to guard him applied to open cut backfill formula constructing tunnel the present invention relates to a kind of, it is related to constructing tunnel support technology field, comprising: diaphram wall, interim column pile foundation, lattice column, top concrete support, bracing members, longitude strut and scissors support construction；Diaphram wall is equipped with two rows, and interim column pile foundation is provided with more and moves towards arranged for interval along tunnel to be onstructed, and between two diaphram walls, the bottom of lattice column is fixedly connected interim column pile foundation with interim column pile foundation；It pushes up concrete support level arrangement and is set to the top of lattice column, diaphram wall, more longitude struts are equipped between adjacent lattice column, arranged for interval up and down between adjacent longitude strut, is fixed with more bracing members, the middle section bottom of longitude strut support bracing members between diaphram wall；Scissors support construction is equipped between adjacent lattice column, scissors support construction is between neighbouring longitude strut.The present invention has the effect of that supporting construction is more stable, safe.
Description
Technical field
The present invention relates to constructing tunnel support technology fields, are applied to open cut more particularly, to one kind and backfill formula constructing tunnel
Go along with sb. to guard him support system.
Background technique
Open cut backfill formula tunnel is one of the engineering method for building tunnel, because construction method is first to sap a gallery downwards on ground,
Road surface backfill is gained the name again.This method, which is useful in, builds ground end tunnel, and sea is temporarily filled out in cooperation can be used as building seabed tunnel.
The Chinese invention patent for now retrieving a Publication No. CN106567395A discloses a kind of full framing replacement
The construction method of steel support replacement, the bottom the specific steps of which are as follows: (1) after the completion of the construction of bottom plates of subway station main structure, constructs
Side wall, the lateral pressure generated when being poured using concrete, be aided with fastener ensure the horizontal direction of full framing it is closely connected with hold out against
Afterwards, side wall and middle plate are poured simultaneously；(2) under steel support replacement bottom plate and side wall pour after completion reaches intensity, continue to set up
Full framing；(3) after the full framing in step (2) is set up, the third road bracing members on the part full framing are removed, after
It is continuous to set up full framing, plate and side wall in main structure of constructing；(4) in main structure construction completion and intensity reaches design and wants
After asking, i.e., dismountable full framing.
Prior art among the above has the following deficiencies: by the obtained support construction of above-mentioned construction method,
The centre of building enclosure is formed with column, but column only leans on the pile foundation of its bottom to fix, and structure is not steady enough in work progress
Fixed, there are some potential safety problemss, so have much room for improvement.
Summary of the invention
The purpose of the present invention one be to provide it is a kind of go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, there is branch
More stable, the safe advantage of protection structure.
Above-mentioned purpose one of the invention has the technical scheme that a kind of applied to open cut backfill formula tunnel
Support system is gone along with sb. to guard him in road construction, comprising: diaphram wall, interim column pile foundation, lattice column, top concrete support, bracing members, longitudinal direction
Connection beam and scissors support construction；
The diaphram wall is provided with two sides that are two rows of and being located at tunnel to be onstructed and arranges that the interim column pile foundation is provided with
More and arranged for interval is moved towards along tunnel to be onstructed, the interim column pile foundation is described between two diaphram walls
The bottom of lattice column is fixedly connected with the interim column pile foundation；
The top concrete support level arrangement and the top for being set to the lattice column, the diaphram wall, the adjacent lattice column
Between be fixed with the more longitude struts, arranged for interval, the underground are continuous up and down between the adjacent longitude strut
The more horizontally disposed bracing members, the middle section bottom of bracing members described in the longitude strut support are fixed between wall
Portion；
The scissors support construction is additionally provided between the adjacent lattice column, the scissors support construction is located at neighbouring
Between two longitude struts.
By using above-mentioned technical proposal, longitude strut, longitude strut are increased between adjacent lattice column first
Not only have the function of supporting bracing members, also makes to connect stronger, thus lattice column, bracing members, vertical between adjacent lattice column
It links together to connection beam, each other stress, structural strength is higher, bearing capacity is stronger, is not easy skew；Secondly adjacent
Scissors support construction is also added between lattice column, scissors support construction further makes to connect between adjacent lattice column more firm
Gu；So the force structure for entirely going along with sb. to guard him support system is more reasonable, supporting construction is more stable, and it is hidden to greatly reduce safety
Suffer from.
The present invention is further arranged to, and the cross section of the lattice column is rectangular, and the lattice column is by concreting
It forms, the lattice column is internally provided with steel construction, and the bottom of the steel construction is embedded in the interior of the interim column pile foundation in advance
Portion.
By using above-mentioned technical proposal, steel construction enhances the structural strength of lattice column, and by concreting and
At lattice column technology maturation, construction is simple, safe and reliable；Steel construction also facilitates lattice column and other structures part to pass through weldering simultaneously
The mode of connecing is fixed or is fixed by bolt group.
The present invention is further arranged to, and the steel construction is rectangular box-like structure, and the steel construction includes: angle steel and sews
Plate, there are four the angle steel settings and is located at the quadrangle arrangement of rectangle, and the batten plate is welded in the outer of the adjacent angle steel
Side.
By using above-mentioned technical proposal, the steel construction sound construction made of angle steel and batten plate makes simple, cost
It is low.
The present invention is further arranged to, the circular in cross-section shape of the interim column pile foundation, the interim column pile foundation
It is formed by concreting, the stiffener around steel construction arrangement is provided in the interim column pile foundation.
By using above-mentioned technical proposal, stiffener enhances the structural strength of interim column pile foundation, and by coagulation
It is soil interim column pile foundation technology maturation, construction is simple made of pouring, safe and reliable.
The present invention is further arranged to, and the scissors support construction includes: the first cant beam, connecting plate, the second cant beam and adds
Strong rib；
First cant beam, second cant beam are made its both ends by I-steel and are both secured to the adjacent lattice column, institute
State the first cant beam, the second cant beam arranged crosswise；
First cant beam is fixed with two pieces of connecting plates at crossover node, and the connecting plate is parallel to second cant beam
Cloth set direction and fitting second cant beam outer surface, pass through multiple groups spiral shell between the connecting plate and second cant beam
Bolt group is fixedly connected；
Second cant beam is provided with ribs described in muti-piece at crossover node, and the ribs is parallel to first cant beam
Cloth set direction and be set to I-steel slot in.
By using above-mentioned technical proposal, it is secured that the first cant beam, the second oblique beam structure are made by I-steel, materials are convenient,
It is at low cost, and construction personnel is facilitated to be welded and fixed or be fixed using bolt group；And the connecting plate added and reinforcement
Rib greatly strengthens the structural strength of the first cant beam and the second cant beam infall, so scissors support construction can be more stable
Ground is supported between adjacent lattice column, the stronger stabilization of structure.
The present invention is further arranged to, and the main body of the longitude strut is made of two side channel steel, two side channels
For the notch of steel backwards to arranging, the longitude strut is being additionally provided with top plate and bottom plate and filling with the bracing members connection
Floor, the top plate are welded in the top of two side channel steel, and the bottom plate is welded in the bottom of two side channel steel, and two
Side channel steel described in root and the top plate, the bottom plate constitute rectangular box-like structure, and the filling floor is provided with muti-piece and is in
Rectangular-shaped, the inner wall in the side channel steel, the lower surface of the top plate, the bottom is respectively welded in the four edges of the filling floor
The upper surface of plate.
By using above-mentioned technical proposal, main body longitude strut sound construction made of channel steel, convenient, cost of drawing materials
It is low, and construction personnel is facilitated to be welded and fixed or be fixed using bolt group；Due to longitude strut with bracing members phase
Junction needs to bear the pressure from bracing members, so top plate and bottom plate and filling floor are additionally arranged in the junction, with enhancing
The structural strength of longitude strut, it is ensured that longitude strut is not easy bending deformation in the junction, and bearing capacity is stronger, and structure is more
Add firm stable.
The present invention is further arranged to, and the main body of the bracing members is made of hollow steel pipe, the longitude strut it is upper
Surface is provided with support base, outline border and hound, and the support base and the bottom of the bracing members abut against, the outline border
It covers the bracing members and the bracing members is inscribed in the outline border, the hound is set to the side of the outline border and described
Between the upper surface of longitude strut.
By using above-mentioned technical proposal, by the skewed horizontal load of hound, outline border can be connected to vertical strongerly
To on connection beam, outline border has good position-limiting action to bracing members, effectively prevent bracing members to roll on longitude strut, together
When support base increase bracing members bottom and longitude strut upper surface between contact area, so bracing members can be more
It is stable and firm.
The present invention is further arranged to, and the outline border and the hound are made of channel steel, and the support base includes:
Angle bar and batten, the bottom edge for being provided with two and the angle bar of the angle bar are welded in the upper surface of the longitude strut,
The vertical edge of the angle bar is connected to the bottom surface of the bracing members, the bottom surface of the bracing members, the angle bar vertical edge,
The upper surface of the longitude strut surrounds filling gap, and the batten is filled in the filling gap.
By using above-mentioned technical proposal, the outline border made of channel steel and hound sound construction, convenient, cost of drawing materials
It is low, and construction personnel is facilitated to be welded and fixed or be fixed using bolt group；The support base made of angle bar and batten
The peripheral wall circular structure of bracing members can be better adapted to, the easily deformable feature of batten can guarantee that support base can be more
It is bonded the bottom surface of bracing members, support effect is more preferable, and angle bar can be effectively prevented bracing members and roll on longitude strut
It is dynamic.
The present invention is further arranged to, and two lateral walls of the lattice column are respectively and fixedly provided with Cowhells leg, the Cowhells leg it is upper
Surface is welded with steel tie-rod, and the steel tie-rod abuts the bottom for being supported in the bracing members, and the steel tie-rod is specifically by channel steel system
At the steel tie-rod fits in the side wall of the lattice column and the notch of the steel tie-rod is outwardly disposed.
By using above-mentioned technical proposal, Cowhells leg and steel tie-rod are set between lattice column, bracing members together, by lattice
Column, bracing members link together, and mutual stress, lattice column is easier to maintain vertical state, and bracing members are easier to maintain horizontal
State further enhances the bearing capacity for entirely going along with sb. to guard him support system, more firm, safer.
The present invention is further arranged to, and the diaphram wall is formed by concreting, is set in the diaphram wall
It is equipped with vertical girder rib.
By using above-mentioned technical proposal, vertical girder rib enhances the structural strength of diaphram wall, and by coagulation
It is the maturation of Diaphragm Wall made of soil pours, construction is simple, safe and reliable.
In conclusion advantageous effects of the invention are as follows:
First, increasing longitude strut between adjacent lattice column first, longitude strut not only has support bracing members
Effect, also makes to connect between adjacent lattice column stronger, and thus lattice column, bracing members, longitude strut link together, that
This mutual stress, structural strength is higher, bearing capacity is stronger, is not easy skew；Secondly it also adds and cuts between adjacent lattice column
Knife support construction, scissors support construction further make to connect between adjacent lattice column stronger；So entirely going along with sb. to guard him support system
The force structure of system is more reasonable, and supporting construction is more stable, greatly reduces security risk；
Second, outline border can be connected on longitude strut by the skewed horizontal load of hound strongerly, outline border is to steel branch
Support has good position-limiting action, and bracing members is effectively prevent to roll on longitude strut, while support base increases bracing members
Bottom and longitude strut upper surface between contact area, so bracing members can be more stable and firm.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the connection signal in the embodiment of the present invention between scissors support construction, lattice column, longitude strut and bracing members
Figure；
Fig. 3 is the cross-sectional view in the face A-A in Fig. 1；
Fig. 4 is the cross-sectional view in the face B-B in Fig. 1；
Fig. 5 is the enlarged drawing in Fig. 2 at C；
Fig. 6 is the enlarged drawing in Fig. 2 at D；
Fig. 7 is the cross-section cutaway view of longitude strut in the embodiment of the present invention.
Appended drawing reference: 1, diaphram wall；11, vertical girder rib；2, interim column pile foundation；21, stiffener；3, lattice
Column；31, steel construction；311, angle steel；312, batten plate；4, top concrete support；5, bracing members；6, longitude strut；61, side channel steel；62,
Top plate；63, bottom plate；64, floor is filled；7, scissors support construction；71, the first cant beam；72, connecting plate；73, the second cant beam；74,
Ribs；8, support base；81, angle bar；82, batten；9, outline border；10, hound；101, Cowhells leg；102, steel tie-rod.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
It referring to Figures 1 and 2, is that a kind of support of going along with sb. to guard him for backfilling formula constructing tunnel applied to open cut disclosed by the invention is
System, comprising: diaphram wall 1, interim column pile foundation 2, lattice column 3, top concrete support 4, bracing members 5, longitude strut 6 and scissors
Support construction 7.
Diaphram wall 1 is provided with two sides that are two rows of and being located at tunnel to be onstructed and arranges that interim column pile foundation 2 is provided with more
Root and arranged for interval is moved towards along tunnel to be onstructed, interim column pile foundation 2 is between two diaphram walls 1, the bottom of lattice column 3
It is fixedly connected with interim column pile foundation 2；It pushes up concrete and supports 4 tops that are horizontally disposed and being set to lattice column 3, diaphram wall 1, it is adjacent
More longitude struts 6, upper and lower arranged for interval between adjacent longitude strut 6, diaphram wall 1 are fixed between lattice column 3
Between be fixed with more horizontally disposed bracing members 5, the middle section bottom of 6 support bracing members 5 of longitude strut；Adjacent lattice
Scissors support construction 7 is additionally provided between column 3, scissors support construction 7 is between two neighbouring longitude struts 6.
Two lateral walls of lattice column 3 are respectively and fixedly provided with Cowhells leg 101, and the upper surface of Cowhells leg 101 is welded with steel tie-rod 102,
Steel tie-rod 102 abuts the bottom for being supported in bracing members 5, and steel tie-rod 102 is specifically made of channel steel, and steel tie-rod 102 fits in lattice
The side wall of the column 3 and notch of steel tie-rod 102 is outwardly disposed.Cowhells leg 101 and steel tie-rod 102 are set to lattice column 3, bracing members together
Between 5, lattice column 3, bracing members 5 are linked together, mutual stress, lattice column 3 is easier to maintain vertical state, bracing members 5
It is easier to maintain horizontality, further enhances the bearing capacity for entirely going along with sb. to guard him support system, it is more firm, safer.
Diaphram wall 1 is formed by concreting, and vertical girder rib 11, vertical truss are provided in diaphram wall 1
Muscle 11 enhances the structural strength of diaphram wall 1, and 1 technology maturation of diaphram wall as made of concreting, applies
Work is simple, safe and reliable.
In conjunction with shown in Fig. 1 and Fig. 3, the cross section of lattice column 3 is rectangular, and lattice column 3 is formed by concreting, lattice
Column 3 is internally provided with steel construction 31, and the bottom of steel construction 31 is embedded in the inside of interim column pile foundation 2 in advance.Steel construction 31 enhances
The structural strength of lattice column 3, and it is as made of concreting 3 technology maturation of lattice column, construction is simple, safe and reliable；
Steel construction 31 also facilitates lattice column 3 to fix with other structures part by welding manner or be fixed by bolt group simultaneously.
Steel construction 31 is rectangular box-like structure, and steel construction 31 includes: angle steel 311 and batten plate 312, and angle steel 311 is provided with four
Quadrangle arrangement that is a and being located at rectangle, batten plate 312 is welded in the lateral surface of adjacent angle steel 311, by angle steel 311 and batten plate
31 sound construction of steel construction made of 312 makes simple, at low cost.
In conjunction with shown in Fig. 3 and Fig. 4, the circular in cross-section shape of interim column pile foundation 2, interim column pile foundation 2 is by concrete
It pours, the stiffener 21 arranged around steel construction 31 is provided in interim column pile foundation 2.Stiffener 21, which enhances, to be faced
The structural strength of Shi Lizhu pile foundation 2, and interim 2 technology maturation of column pile foundation, construction is simple, peace as made of concreting
It is complete reliable.
In conjunction with shown in Fig. 2 and Fig. 5, scissors support construction 7 includes: the first cant beam 71, connecting plate 72, the second cant beam 73 and adds
Strong rib 74；First cant beam 71, the second cant beam 73 are made its both ends by I-steel and are both secured to adjacent lattice column 3, and first tiltedly
Beam 71,73 arranged crosswise of the second cant beam；First cant beam 71 is fixed with two pieces of connecting plates 72 at crossover node, and connecting plate 72 is parallel
In the cloth set direction of the second cant beam 73 and the outer surface of the second cant beam 73 of fitting, pass through between connecting plate 72 and the second cant beam 73
Multiple groups bolt group is fixedly connected；Second cant beam 73 is provided with muti-piece ribs 74 at crossover node, and ribs 74 is parallel to
The cloth set direction of one cant beam 71 and be set to I-steel slot in.First cant beam 71,73 structure of the second cant beam jail are made by I-steel
Gu materials are convenient, at low cost, and construction personnel is facilitated to be welded and fixed or be fixed using bolt group；And add
Connecting plate 72 and ribs 74 greatly strengthen the structural strength of 73 infall of the first cant beam 71 and the second cant beam, so scissors
Support construction 7 can be more stably supported between adjacent lattice column 3, the stronger stabilization of structure.
In conjunction with shown in Fig. 2 and Fig. 6, the main body of bracing members 5 is made of hollow steel pipe, the upper surface setting of longitude strut 6
Have support base 8, outline border 9 and hound 10, support base 8 and the bottom of bracing members 5 abut against, outline border 9 cover bracing members 5 and
Bracing members 5 are inscribed in outline border 9, and hound 10 is set between the side of outline border 9 and the upper surface of longitude strut 6.By oblique
The skewed horizontal load of strut 10, outline border 9 can be connected to strongerly on longitude strut 6, and outline border 9 has bracing members 5 good
Good position-limiting action, effectively prevent bracing members 5 to roll on longitude strut 6, while support base 8 increases the bottom of bracing members 5
Contact area between portion and the upper surface of longitude strut 6, so bracing members 5 can be more stable and firm.
Outline border 9 and hound 10 are made of channel steel, and support base 8 includes: angle bar 81 and batten 82, the setting of angle bar 81
There is the bottom edge of two and angle bar 81 to be welded in the upper surface of longitude strut 6, the vertical edge of angle bar 81 is connected to the bottom of bracing members 5
Surface, the bottom surface of bracing members 5, the vertical edge of angle bar 81, longitude strut 6 upper surface surround filling gap, batten 82 fills out
Outline border 9 made of channel steel and 10 sound construction of hound in filling gap are filled, materials are convenient, at low cost, and conveniently apply
Worker person is welded and fixed or is fixed using bolt group；The support base 8 made of angle bar 81 and batten 82 can be more preferable
Ground adapts to the peripheral wall circular structure of bracing members 5, and the easily deformable feature of batten 82 can guarantee that support base 8 can be more bonded
The bottom surface of bracing members 5, support effect is more preferable, and angle bar 81 can be effectively prevented bracing members 5 and roll on longitude strut 6
It is dynamic.
In conjunction with shown in Fig. 2 and Fig. 7, the main body of longitude strut 6 is made of two side channel steel 61, the slot of two side channel steel 61
For mouth backwards to arranging, longitude strut 6 is being additionally provided with top plate 62, bottom plate 63 and filling floor 64, top with 5 connection of bracing members
Plate 62 is welded in the top of two side channel steel 61, and bottom plate 63 is welded in the bottom of two side channel steel 61, two side channel steel 61 and top
Plate 62, bottom plate 63 constitute rectangular box-like structure, and filling floor 64 is provided with muti-piece and rectangular, four for filling floor 64
While the upper surface of the inner wall in side channel steel 61, the lower surface of top plate 62, bottom plate 63 is respectively welded.
Main body 6 sound construction of longitude strut made of channel steel, materials are convenient, at low cost, and facilitate construction personnel
It is welded and fixed or is fixed using bolt group；Since longitude strut 6 is needing to bear to come from 5 connection of bracing members
The pressure of bracing members 5, so top plate 62, bottom plate 63 and filling floor 64 are additionally arranged in the junction, to enhance longitude strut 6
Structural strength, it is ensured that longitude strut 6 is not easy bending deformation in the junction, and bearing capacity is stronger, and structure is stronger steady
It is fixed.
The implementation principle of the present embodiment are as follows: increase longitude strut 6, vertical linkage between adjacent lattice column 3 first
Beam 6 not only has the function of supporting bracing members 5, also makes to connect stronger, thus lattice column 3, steel branch between adjacent lattice column 3
Support 5, longitude strut 6 link together, each other stress, and structural strength is higher, bearing capacity is stronger, is not easy skew；Its
Secondary that scissors support construction 7 is also added between adjacent lattice column 3, scissors support construction 7 further makes between adjacent lattice column 3
It connects stronger；So the force structure for entirely going along with sb. to guard him support system is more reasonable, supporting construction is more stable, substantially reduces
Security risk.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel characterized by comprising diaphram wall
(1), interim column pile foundation (2), lattice column (3), top concrete support (4), bracing members (5), longitude strut (6) and scissors support knot
Structure (7)；
The diaphram wall (1) is provided with two sides that are two rows of and being located at tunnel to be onstructed and arranges, the interim column pile foundation (2)
It is provided with more and moves towards arranged for interval along tunnel to be onstructed, the interim column pile foundation (2) is located at two diaphram walls
(1) between, the bottom of the lattice column (3) is fixedly connected with the interim column pile foundation (2)；
The top concrete support (4) is horizontally disposed and is set to the top of the lattice column (3), the diaphram wall (1), adjacent institute
State and be fixed with the more longitude struts (6) between lattice column (3), between the adjacent longitude strut (6) between the upper and lower every
It arranges, is fixed with the more horizontally disposed bracing members (5), the longitude strut (6) between the diaphram wall (1)
The middle section bottom of bracing members described in support (5)；
The scissors support construction (7) is additionally provided between the adjacent lattice column (3), the scissors support construction (7) is located at
Between the longitude strut (6) of neighbouring two.
2. according to claim 1 go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, which is characterized in that institute
The cross section for stating lattice column (3) is rectangular, and the lattice column (3) is formed by concreting, the inside of the lattice column (3)
It is provided with steel construction (31), the bottom of the steel construction (31) is embedded in the inside of the interim column pile foundation (2) in advance.
3. according to claim 2 go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, which is characterized in that institute
Stating steel construction (31) is rectangular box-like structure, and the steel construction (31) includes: angle steel (311) and batten plate (312), the angle steel
(311) it is arranged there are four and is located at the quadrangle arrangement of rectangle, the batten plate (312) is welded in the adjacent angle steel (311)
Lateral surface.
4. according to claim 2 go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, which is characterized in that institute
The circular in cross-section shape of interim column pile foundation (2) is stated, the interim column pile foundation (2) is formed by concreting, described to face
The stiffener (21) around the steel construction (31) arrangement is provided in Shi Lizhu pile foundation (2).
5. according to claim 1 go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, which is characterized in that institute
Stating scissors support construction (7) includes: the first cant beam (71), connecting plate (72), the second cant beam (73) and ribs (74)；
First cant beam (71), second cant beam (73) are made its both ends by I-steel and are both secured to the adjacent lattice
Structure column (3), first cant beam (71), second cant beam (73) arranged crosswise；
First cant beam (71) is fixed with two pieces of connecting plates (72) at crossover node, and the connecting plate (72) is parallel to
The cloth set direction of second cant beam (73) and the outer surface of fitting second cant beam (73), the connecting plate (72) and institute
It states and is fixedly connected between the second cant beam (73) by multiple groups bolt group；
Second cant beam (73) is provided with ribs described in muti-piece (74) at crossover node, and the ribs (74) is parallel to
The cloth set direction of first cant beam (71) and be set to I-steel slot in.
6. according to claim 1 go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, which is characterized in that institute
The main body for stating longitude strut (6) is made of two side channel steel (61), and the notch of two side channel steel (61) is backwards to arrangement, institute
It states longitude strut (6) and is being additionally provided with top plate (62), bottom plate (63) and filling floor with the bracing members (5) connection
(64), the top plate (62) is welded in the top of two side channel steel (61), and the bottom plate (63) is welded in two sides
The bottom of channel steel (61), two side channel steel (61) and the top plate (62), the bottom plate (63) constitute rectangular box-like structure,
The filling floor (64) is provided with muti-piece and rectangular, and the four edges of filling floor (64) are respectively welded in described
The inner wall of side channel steel (61), the lower surface of the top plate (62), the bottom plate (63) upper surface.
7. according to claim 1 go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, which is characterized in that institute
The main body for stating bracing members (5) is made of hollow steel pipe, and the upper surface of the longitude strut (6) is provided with support base (8), outer
Frame (9) and hound (10), the support base (8) and the bottom of the bracing members (5) abut against, and the outline border (9) covers
The bracing members (5) and the bracing members (5) are inscribed in the outline border (9), and the hound (10) is set to the outline border (9)
Side and the longitude strut (6) upper surface between.
8. according to claim 7 go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, which is characterized in that institute
It states outline border (9) and the hound (10) is made of channel steel, the support base (8) includes: angle bar (81) and batten (82),
The bottom edge for being provided with two and the angle bar (81) of the angle bar (81) is welded in the upper surface of the longitude strut (6),
The vertical edge of the angle bar (81) is connected to the bottom surface of the bracing members (5), the bottom surface of the bracing members (5), described
The vertical edge of angle bar (81), the upper surface of the longitude strut (6) surround filling gap, and the batten (82) is filled in described fill out
It fills in gap.
9. according to claim 1 go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, which is characterized in that institute
Two lateral walls for stating lattice column (3) are respectively and fixedly provided with Cowhells leg (101), and the upper surface of the Cowhells leg (101) is welded with steel tie-rod
(102), the steel tie-rod (102) abuts the bottom for being supported in the bracing members (5), and the steel tie-rod (102) is specifically by channel steel
It is made, the steel tie-rod (102) fits in the side wall of the lattice column (3) and the notch of the steel tie-rod (102) is outwardly disposed.
10. according to claim 1 go along with sb. to guard him support system applied to open cut backfill formula constructing tunnel, which is characterized in that
The diaphram wall (1) is formed by concreting, is provided with vertical girder rib (11) in the diaphram wall (1).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111042103A (en) * | 2019-12-13 | 2020-04-21 | 中国建筑第二工程局有限公司 | Underground continuous wall with socket type steel lattice framework and construction method thereof |
| CN113062326A (en) * | 2021-03-16 | 2021-07-02 | 上海市城市建设设计研究总院（集团）有限公司 | Foundation pit reinforced concrete inner support system and construction method for rapid installation of foundation pit reinforced concrete inner support system |
| CN113281079A (en) * | 2021-06-16 | 2021-08-20 | 交通运输部公路科学研究所 | Model test device for cooperative construction of open-cut highway tunnel and adjacent double-line tunnel |
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| CN113062326A (en) * | 2021-03-16 | 2021-07-02 | 上海市城市建设设计研究总院（集团）有限公司 | Foundation pit reinforced concrete inner support system and construction method for rapid installation of foundation pit reinforced concrete inner support system |
| CN113281079A (en) * | 2021-06-16 | 2021-08-20 | 交通运输部公路科学研究所 | Model test device for cooperative construction of open-cut highway tunnel and adjacent double-line tunnel |
| CN113281079B (en) * | 2021-06-16 | 2022-05-10 | 交通运输部公路科学研究所 | Model test device for cooperative construction of open-cut highway tunnel and adjacent double-line tunnel |
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| CN110306594B (en) | 2021-04-13 |
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