CN109386010A - Tunnel sidewalls support shuttering and tunnel variable section structure side wall jump section construction - Google Patents
Tunnel sidewalls support shuttering and tunnel variable section structure side wall jump section construction Download PDFInfo
- Publication number
- CN109386010A CN109386010A CN201811474785.0A CN201811474785A CN109386010A CN 109386010 A CN109386010 A CN 109386010A CN 201811474785 A CN201811474785 A CN 201811474785A CN 109386010 A CN109386010 A CN 109386010A
- Authority
- CN
- China
- Prior art keywords
- support
- tunnel
- support frame
- side wall
- construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
Abstract
The present invention provides a kind of tunnel sidewalls support shutterings and tunnel variable section structure side wall to jump section construction, is related to constructing tunnel field.The tunnel sidewalls support shuttering includes multiple template unit；Length direction of the multiple template unit along tunnel is arranged side by side；Modular unit includes panel assembly and support component；Panel assembly includes multiple panels, and multiple panels are sequentially connected along the short transverse of panel, and the total height of multiple panels is consistent with tunnel height；The both ends of panel are arranged in support component, and support component is perpendicular to panel；Support component includes right angled triangle support frame, trapezoidal support frame, the first connecting plate and the second connecting plate, the upper end of trapezoidal support frame is arranged in right angled triangle support frame, it is provided with the first connecting plate at a wherein right-angle side for right angled triangle support frame, the second connecting plate is provided at the short right-angle side of trapezoidal support frame；First connecting plate is connect by bolt with the second connecting plate.
Description
Technical field
The present invention relates to technical field of tunnel construction, more particularly, to a kind of tunnel sidewalls support shuttering and tunnel variable cross-section
Structure side wall jumps section construction.
Background technique
Open trench tunnel is first to excavate ground, is building lining cutting in the open, then carries out backfill covering at top again
And the tunnel built.Majority is shallow embedding, big by surface water and influence on groundwater, and complex geologic conditions, and difficulty of construction is big.It is common
The main structure construction of open-cut foundation ditch tunnel, the method for mostly using iterative method to construct in order greatly, and Main Structural Section change
It is small, mostly use formwork jumbo to construct.
Many tunnel construction sections are underground continuous wall-enclosure structure section, have enclosing supporting construction multiplicity, difficulty of construction height, excavate
Degree is deep, structure section changes greatly, and section is mutated rapid feature in longitudinal direction,.
This tunnel ground-connecting-wall section main structure, section variation is big, can not be constructed, be applied using the formwork jumbo of standard
The few construction technology problem of work work surface, difficulty of construction is high, and cost is big, long in time limit.
Based on this, the present invention provides a kind of tunnel sidewalls support shutterings and tunnel variable section structure side wall to jump section construction work
Method is to solve above-mentioned technical problem.
Summary of the invention
It is big to solve existing some section variations the purpose of the present invention is to provide a kind of tunnel sidewalls support shuttering
The high technical problem long in time limit of tunnel ground-connecting-wall section difficulty of construction.
The object of the invention is also to provide a kind of tunnel variable section structure side walls to jump section construction, above-mentioned for solving
Technical problem.
Based on above-mentioned first purpose, the present invention provides a kind of tunnel sidewalls support shuttering,
Including multiple template unit；Length direction of multiple modular units along the tunnel is arranged side by side；
The modular unit includes panel assembly and support component；The panel assembly includes multiple panels, the panel
Be arranged along length of tunnel direction, multiple panels are sequentially connected along the short transverse of the panel, multiple panels it is total
Height is consistent with the tunnel height；
The both ends of the panel are arranged in the support component, and the support component is perpendicular to the panel, the branch
Support component is used to support the panel；
The support component includes right angled triangle support frame, trapezoidal support frame, the first connecting plate and the second connecting plate,
The upper end of the trapezoidal support frame is arranged in the right angled triangle support frame, the right angled triangle support frame
It is wherein provided with the first connecting plate at a right-angle side, is provided with the second connecting plate at the short right-angle side of the trapezoidal support frame；Institute
The first connecting plate is stated to connect by bolt with second connecting plate.
Optionally, the right-angle side of the right-angle side of the right angled triangle support frame and the trapezoidal support frame is in same perpendicular
On straight straight line；The bevel edge of the bevel edge of the right angled triangle support frame and the trapezoidal support frame is on same straight line, and institute
It states and is provided with support protrusion, the adjacent support on the bevel edge of right angled triangle support frame and the bevel edge of the trapezoidal support frame
Connecting rod is provided in the adjacent support protrusion on component, the connecting rod is for connecting the adjacent support component.
Optionally, the support component further includes lower margin support rod, the lower margin support rod be provided with it is multiple, it is multiple described
Lower margin support rod is used to support the bottom edge of the trapezoidal support frame.
Optionally, the support component further includes tiltedly foot support rod, the tiltedly foot support rod be provided with it is multiple, it is multiple
The tiltedly foot support rod is used to support the right-angle side of the trapezoidal support frame.
Optionally, be provided with gusset on the panel, the quantity of the gusset be it is multiple, multiple gussets are along the face
The length direction of plate is arranged, and multiple gusset equidistantly distributeds.
It optionally, further include reinforcing rib, the reinforcing rib is arranged inside the right angled triangle support frame, the reinforcement
Muscle is additionally arranged inside the trapezoidal support frame.
It optionally, further include bolt, the bolt is for connecting the panel and the support component.
Based on above-mentioned second purpose, the present invention provides a kind of tunnel variable section structure side walls to jump section construction, described
Tunnel variable section structure side wall jumps section construction, which includes the following steps；
Step S1, initial data acquisition before bracing members are removed；
Step S2, side wall jump section construction steel support and unload power；
Step S3, side wall are jumped section construction steel support and are removed；
Step S4, side wall jump section waterproof coiled material construction；
Step S5, side wall jump the binding of section construction reinforced bar；
Step S6, installation such as the described in any item tunnel sidewalls support shutterings of claim 1-7；
Step S7, side wall jump section construction concreting and maintenance；
Step S8, as the described in any item tunnel sidewalls support shutterings of claim 1-7 jump section movement installation.
It reinforces when optionally, in step s 6, for convenience of tunnel sidewalls support shuttering installation, is applied at left and right sides of bottom plate
Working hour pre-buried two rows of screw-thread steels, 0.5 meter of longitudinal pitch, as supporting point when reinforcing.
Optionally, in step s 8, should ensure that when side wall demoulding concrete surface and corner angle it is injury-free subject to, it is necessary to
Concrete could demoulding after reaching design and code requirement intensity.
The tunnel sidewalls support shuttering provided by the invention, including multiple template unit, facilitate lifting, and can hold
By biggish lateral pressure.For different tunnel differences end face, adaptation that can be fabulous can assemble random length, for
More difficult construction section carries out jumping section construction.
The tunnel variable section structure side wall provided by the invention jumps section construction, by using above-mentioned tunnel sidewalls
Support shuttering solves the problems, such as that tradition two serves as a contrast formwork jumbo and is difficult to solve the main structure construction of variable cross-section tunnel, this engineering method is compared
Conventional template trolley construction effective solution Main Structural Section variation construction technology problem greatly, and greatly reduce
Cost input, reduces the waste of resource, and steel pipe used in mould material and reinforcing template, channel steel, I-steel etc. can be effective
Recycling, and effectively reduce difficulty of construction, common construction personnel can be on duty construction through simple training, from material resources,
The everyways such as manpower are more economical compared to conventional template trolley.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the side view of the panel of tunnel sidewalls support shuttering provided in an embodiment of the present invention；
Fig. 2 is the front view of the panel of tunnel sidewalls support shuttering provided in an embodiment of the present invention；
Fig. 3 is the front view of the bracket assembly of tunnel sidewalls support shuttering provided in an embodiment of the present invention；
Fig. 4 is the side view of the bracket assembly of tunnel sidewalls support shuttering provided in an embodiment of the present invention；
Fig. 5 is enlarged drawing at A in Fig. 4；
Fig. 6 is tunnel sidewalls support shuttering scheme of installation provided in an embodiment of the present invention.
Figure number: 100- panel；101- gusset；102- flange；200- support component；The support of 201- right angled triangle
Frame；The trapezoidal support frame of 202-；The first connecting plate of 203-；The second connecting plate of 204-；205- lower margin support rod；Tiltedly foot supports 206-
Bar；207- reinforcing rib；208- bolt；209- support protrusion.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Tunnel sidewalls support shuttering embodiment
As shown in Fig. 1 to Fig. 6, a kind of tunnel sidewalls support shuttering, the tunnel sidewalls branch are provided in the present embodiment
Hold mode plate
Multiple template unit；Length direction of multiple modular units along the tunnel is arranged side by side；
The modular unit includes panel assembly and support component 200；The panel assembly includes multiple panels 100, institute
It states panel 100 to be arranged along length of tunnel direction, multiple panels 100 are sequentially connected along the short transverse of the panel 100, more
The total height of a panel 100 is consistent with the tunnel height；
The both ends of the panel 100 are arranged in the support component 200, and the support component 200 is perpendicular to the face
Plate 100, the support component 200 are used to support the panel 100；
The support component includes right angled triangle support frame 201, trapezoidal support frame 202, the first connecting plate 203 and second
The upper end of the trapezoidal support frame 202, the right angled triangle is arranged in connecting plate 204, the right angled triangle support frame 201
It is provided with the first connecting plate 203 at a wherein right-angle side for support frame 201, is set at the short right-angle side of the trapezoidal support frame 202
It is equipped with the second connecting plate 204；First connecting plate 203 is connect by bolt 208 with second connecting plate 204.
The tunnel sidewalls support shuttering provided by the invention, including multiple template unit, facilitate lifting, and can hold
By biggish lateral pressure.For different tunnel differences end face, adaptation that can be fabulous can assemble random length, for
More difficult construction section carries out jumping section construction.
In order to further ensure the right angled triangle support frame 201 is formed by entirety with the trapezoidal support frame 202
Structure has stability and fastness, with reference to shown in Fig. 3-Fig. 5, wherein Fig. 3 is a kind of tunnel side provided in an embodiment of the present invention
The front view of the bracket assembly of wall form Construction Support device；Fig. 4 is a kind of tunnel sidewalls mould provided in an embodiment of the present invention
The side view of the bracket assembly of plate Construction Support device；Fig. 5 is enlarged drawing at A in Fig. 4；In the optinal plan of the present embodiment,
The right-angle side of the right-angle side of the right angled triangle support frame 201 and the trapezoidal support frame 202 is in same vertical straight line；
The bevel edge of the bevel edge of the right angled triangle support frame 201 and the trapezoidal support frame 202 is on same straight line, and described straight
Support protrusion 209, adjacent institute are provided on the bevel edge of the bevel edge of angle triangle support frame 201 and the trapezoidal support frame 202
It states and is provided with connecting rod in the adjacent support protrusion 209 in support component 200, the connecting rod is adjacent described for connecting
Support component 200.
Specifically, the support protrusion 209 is used to limit and supporting role to the connecting rod.
In one embodiment of the invention, in order to further ensure the support component 200 have stability and securely
Property, with reference to shown in Fig. 3-Fig. 5, wherein Fig. 3 is a kind of tunnel sidewalls template construction support device provided in an embodiment of the present invention
The front view of bracket assembly；Fig. 4 is the first of a kind of tunnel sidewalls template construction support device provided in an embodiment of the present invention
The attachment structure schematic diagram of connecting plate 203 and the second connecting plate 204；Fig. 5 is enlarged drawing at A in Fig. 4；The support component 200
It further include lower margin support rod 205, the lower margin support rod 205 is provided with multiple, and multiple lower margin support rods 205 are used to support
The bottom edge of the trapezoidal support frame 202.
In one embodiment of the invention, in order to further ensure the support component 200 have stability and securely
Property, with reference to shown in Fig. 3-Fig. 5, wherein Fig. 3 is a kind of tunnel sidewalls template construction support device provided in an embodiment of the present invention
The front view of bracket assembly；Fig. 4 is the first of a kind of tunnel sidewalls template construction support device provided in an embodiment of the present invention
The attachment structure schematic diagram of connecting plate 203 and the second connecting plate 204；Fig. 5 is enlarged drawing at A in Fig. 4；The embodiment of the present invention provides
The support component 200 further include tiltedly foot support rod 206, the tiltedly foot support rod 206 be provided with it is multiple, it is multiple described
Tiltedly foot support rod 206 is used to support the right-angle side of the trapezoidal support frame 202.
In one embodiment of the invention, in order to further ensure the panel 100 has stability and fastness, ginseng
It examines shown in Fig. 1 and Fig. 2, wherein Fig. 1 is a kind of panel of tunnel sidewalls template construction support device provided in an embodiment of the present invention
100 side view；Fig. 2 be a kind of panel 100 of tunnel sidewalls template construction support device provided in an embodiment of the present invention just
View；Be provided with gusset 101 on the panel 100 provided in an embodiment of the present invention, the quantity of the gusset 101 be it is multiple, it is more
A gusset 101 is arranged along the length direction of the panel 100, and multiple 101 spaced sets of the gusset.
Specifically, the gusset 102 reinforces the stability of the panel.
In one embodiment of the invention, in order to further ensure the support component 200 have stability and securely
Property, with reference to shown in Fig. 3-Fig. 5, wherein Fig. 3 is a kind of tunnel sidewalls template construction support device provided in an embodiment of the present invention
The front view of bracket assembly；Fig. 4 is the first of a kind of tunnel sidewalls template construction support device provided in an embodiment of the present invention
The attachment structure schematic diagram of connecting plate 203 and the second connecting plate 204；Fig. 5 is enlarged drawing at A in Fig. 4；The embodiment of the present invention is also wrapped
Reinforcing rib 207 is included, the reinforcing rib 207 is arranged inside the right angled triangle support frame 201, and the reinforcing rib 207 is also set
It sets inside the trapezoidal support frame 202.
In one embodiment of the invention, in order to further ensure the support component 200 have stability and securely
Property, with reference to shown in Fig. 3-Fig. 5, wherein Fig. 3 is a kind of tunnel sidewalls template construction support device provided in an embodiment of the present invention
The front view of bracket assembly；Fig. 4 is the first of a kind of tunnel sidewalls template construction support device provided in an embodiment of the present invention
The attachment structure schematic diagram of connecting plate 203 and the second connecting plate 204；Fig. 5 is enlarged drawing at A in Fig. 4；The embodiment of the present invention provides
It further include bolt 208, the bolt 208 is easy to operate for connecting the panel 100 and the support component 200, convenient.
Tunnel variable section structure side wall jumps section construction embodiment
Such as Fig. 6, a kind of tunnel variable section structure side wall jump section construction is provided in the present embodiment, which includes
Following steps；
Step S1, initial data acquisition before bracing members are removed；
Step S2, side wall jump section construction steel support and unload power；
Step S3, side wall are jumped section construction steel support and are removed；
Step S4, side wall jump section waterproof coiled material construction；
Step S5, side wall jump the binding of section construction reinforced bar；
Step S6, installation such as the described in any item tunnel sidewalls support shutterings of claim 1-7；
Step S7, side wall jump section construction concreting and maintenance；
Step S8, as above described in any item tunnel sidewalls support shutterings jump section movement installation.
The tunnel variable section structure side wall provided by the invention jumps section construction, by using above-mentioned tunnel sidewalls
Support shuttering solves the problems, such as that tradition two serves as a contrast formwork jumbo and is difficult to solve the main structure construction of variable cross-section tunnel, this engineering method is compared
Conventional template trolley construction effective solution Main Structural Section variation construction technology problem greatly, and greatly reduce
Cost input, reduces the waste of resource, and steel pipe used in mould material and reinforcing template, channel steel, I-steel etc. can be effective
Recycling, and effectively reduce difficulty of construction, common construction personnel can be on duty construction through simple training, from material resources,
The everyways such as manpower are more economical compared to conventional template trolley.
Specific step, as detailed below.
2.1 initial data acquisition
1, before open trench tunnel main structure side wall bracing members are removed, it is necessary to be carried out in advance to the sidewall structure section for preparing construction
The acquisition of primary data after removing so as to bracing members, deforms building enclosure and carries out front and back analysis.
2, for bracing members before removing in addition to main monitoring project project as defined in the former design scheme, scene is practical in per pass steel branch
It supports and has laid horizontal displacement monitoring point at each 20cm up and down, longitudinal pitch 1.5m, in order to horizontal to former design scheme mid-deep strata
Displacement monitoring project compares, and forms two-way horizontal displacement to foundation pit enclosure structure and controls.
3, before initial data acquisition, the laying of monitoring parameter measuring point should accomplish the cloth more than the monitoring point that requires in former scheme
If about 1.5 times, preventing the destruction in subsequent handling work progress to monitoring measurement, while to accomplish during site operation to prison
Control the protection of measuring point.
2.2 side walls jump section construction steel support and unload power
1,12~17m of open trench tunnel excavation of foundation pit depth, scene one of concrete support of setting add 2~3 bracing members,
Middle bracing members brace pre axial force maximum value 900KN, scene carry out bracing members to unload power using 2 100T hydraulic jacks, it is ensured that reach
Power is unloaded to live bracing members to meet the requirements.
2, hydraulic jack is hung to the active end position of bracing members with a 25T truck crane, while ensures that 2 jack are same
When pressurize, so that bracing members is in uniform force state, when bquster is in passive state, hydraulic jack stop pressurization, take
Then bquster out resets hydraulic jack, it is ensured that bracing members unload power and smoothly complete.
3, when side wall jump section construction steel support unloads power, site operation personnel must wear safeguard protection tool, lift very heavy
When top, it is necessary to special messenger commander.
4, for bracing members when unloading power, professional survey crew takes real-time monitoring to foundation pit enclosure structure at the scene, if going along with sb. to guard him
Malformation is abnormal, stops bracing members in time and unloads power, while analyzing the abnormal producing cause of deformation, takes relevant treatment to arrange in time
It applies.
5, it after bracing members unload power, is monitored once at interval of 4h, compares the primary data of acquisition, show that building enclosure changes feelings
Condition.If deforming less than 3mm, next procedure can be carried out, if deformation is greater than 3mm, the support for unloading power is reinforced at once, prevents from becoming
Shape aggravation.
2.3. side wall is jumped section construction steel support and is removed
1, after bracing members unload power, foundation pit enclosure structure is continuously monitored for 24 hours by professional survey crew, it is ensured that building enclosure deformation
After without exception, just floor manager personnel is allowed to issue the instruction removed to bracing members.
2, bracing members should first carry out trying to hang before removing, and check that suspension centre, lifting rope and pulley blocks have fault-free.All passed examinations
Just allow to carry out the dismounting and lifting of bracing members afterwards.
3,13.4~26.4 meters of open-cut foundation ditch tunnel clear span, away from 4~17m of ground level, wherein structure clear span is greater than 15 meters
Structural sections are located at left and right sides of foundation pit using 2 Xu work 25t truck cranes and carry out dismounting lifting, and every crane is matched 2 professions and referred to
Wave personnel；15m structural sections are less than to clear span, directly carry out dismounting lifting with a Xu work 50t truck crane.
4, after bracing members meet dismounting condition, Demolition Construction is carried out as early as possible, after forbidding bracing members to unload power, exposure duration mistake
It is long, influence deep pit monitor.
5, bracing members are thought about in advance and stack place, and bracing members stack place must be broad enough, forbids non-operator
Into, after bracing members remove, be transported to specified place at once, forbid scene remove after arbitrarily stack, bracing members must be stacked
Neatly, the underlay lumps of wood is no more than 3 layers, and every lamellar spacing is stoppered wooden wedge, prevents bracing members from sliding and rolling.
6. bracing members organize the construction of next process as early as possible after removing, foundation pit two sides is forbidden to stack weight and heavy-duty machinery
Equipment is current and parks.
2.4 side walls jump section waterproof coiled material construction
1, structurally waterproof design follows the original of " relying mainly on prevention, rigid flexible system, multiple defence line, adaptation to local conditions, comprehensive treatment "
Then.Structurally waterproof grade is level-one.Main body uses the full packet waterproof of single side self type waterproof roll.
2, side wall waterproof roll is constructed using pre- laid process.Construction joint waterproof construction uses back-adhering waterstop and galvanized steel plain sheet
Waterstop, in the waterproof measure that combines of buried rubber watertight strip carry out waterproof.
3, waterproofing of movement joints construction carries out waterproof using circumferential outside setting back-adhering waterstop, and circumferential deformation stitches thickness 1/
Buried rubber steel edge water stop strip carries out waterproof in setting at 3, and circumferential deformation stitches setting 40@400mm of φ at thickness 2/3 and shears bar,
And galvanized steel plain sheet water receiver is set.
4, the circumferential two pieces of splash guards of side wall, which are climbed at weldering, does reinforced waterproofing layer with single side self coiled material, and waterproof roll lap-joint adopts
Welding machine is climbed with 15 centimeters of TH515 type lap width and climbs weldering, answers test weld before welding, is carried out after grasping suitable welding temperature and speed
Welding.The dust on waterproof roll surface is first eliminated before welding.Effective weld width of single weld seam is not less than 1.5cm, waterproof roll
Material lap width is not less than 15cm, and the lap of splice is not less than 15cm and reserved 15cm tire when circumferential waterproof roll circumferential direction connects
Base is welded using double slit, and is used as in lap-joint using 50cm double-sided self-adhesive type waterproof roll and is reinforced waterproof.
5, longitudinal joint coiled material lapping 15cm first brushes one layer of 2mm thickness aqueous emulsion to improve sticking effect on coiled material bonding plane
Asphalt paint is reinforced using 50cm double-sided self-adhesive type waterproof roll.
6, in side wall waterproof construction engineering, using φ 48mm*3.5mm common steel tube, completely paving scaffold board, simple waterproof is set up
Plate paving hangs workbench, coordinates paving by 4 people and hangs waterproof roll.
7, side wall waterproof roll is laid with, and lower part waterproof roll pushes down top waterproof roll, and elastic appropriateness is wanted in splash guard laying,
Make it to be tightly attached to concrete surface, prevent too tight or too loose, waterproof roll is squeezed damaged or forms artificial water storage point.
2.5 side walls jump the binding of section construction reinforced bar
1, the raw material of reinforcement rebar marched into the arena, it is necessary to have product certificate or material test report, it is confirmed it is errorless after, can
It receives and marches into the arena.
2, by batch inspecting for acceptance, scene carries out management supervision witness sampling and carries out mechanical property test and chemical analysis reinforcing bar
Test, through that can be used to construct after the assay was approved.
3, reinforcing bar stacks Ground arrangement at the scene at vacant lot, and the lower part lumps of wood or special stand are padded, are highly 30cm
More than.Top is covered with colour bar cloth, indicates bar gauge, the place of production, using position, test status with material mark board, and is had specially
People carries out store keeping.
4, before starting side wall construction, measurement and positioning line, then assembling reinforcement are released by survey crew.
5, the connection of side wall main reinforcement is using mechanical connection, and side wall horizontal bar is using reinforcing bar binding connection, the every segment length of horizontal reinforcement
Degree is no more than 9m, in order to the binding of reinforcing bar.Inside and outside two layers of reinforcing bar intersection need to be bound securely, and drag hook muscle uses quincunx cloth
It sets.
6, side wall cover to reinforcement controls, and lays every square metre not less than 4 pieces using same concrete cushion block is quincunx.
7, be guarantee splice quality of connection, and based on protection waterproof layer and it is easy for construction, meet design and rule
The considerations of model requires, main reinforcement are mechanically connected using straight screw sleeve, and adjacent link position is mutually staggered, and reinforcing bar connects in same section
Head area is not more than the 50% of whole areas of reinforcement.
8, main reinforcement sleeve overlapped setting to avoid knee, the distance away from bending point cannot be less than 10d (d be reinforcing bar it is straight
Diameter), same root reinforcing bar will set lap joint less as far as possible, in same section, must not exceed one on same root reinforcing bar, to steel before construction
Muscle carries out binding and fixing, determines technological parameter.
9, during side wall reinforcement construction, leakage is forbidden to bury the built-in fittings such as ground rebar and conduit.
2.6 side walls jump the installation of section construction formwork
1, during side wall gang form is assembled for the first time, professional technician is sent to carry out floor manager by template producer, it is existing
Field cooperates template assembly to organize producer's unit, supervisor common by project management department after the completion of assembled using a 25T truck crane
It checks and accepts, acceptance(check) can use.
2, it is reinforced when for convenience of the installation of side wall template, pre-buried two rows 32 screw-thread steel of φ when construction, longitudinal at left and right sides of bottom plate
0.5 meter of spacing, supporting point when as side wall formwork reinforcement.
3,25T crane lifting is used when on-site hoisting, block-by-block lifts to foundation pit, in foundation pit and foundation pit top respectively set special messenger into
Row lifting commander, the special operation workers such as lifting must take appointment with certificate.
4, after side wall template is hung to foundation pit, first at lifting to the anchor point determined in advance, using 65 screw rod of φ to row
Frame bottom is tentatively reinforced, and template horizontal direction is leveled, template is avoided to topple over by rotating base screw rod.
5, be greater than the structural sections of 13.4m for width, at side wall formwork hoisting to the anchor point determined in advance after, at once
Side wall combined steel root is reinforced with the common steel tube of φ 48*3.5mm, impetus setting is being embedded in bottom plate in advance
On the first placing of reinforcement on, be used in steel pipe both ends insertion jacking carry out telescopic adjustment, for fixing side wall bottom template pair
In structure width.For structural sections of the width equal to 13.4m except after the completion of above-mentioned steps, it is also necessary at symmetrical template framed bent end
Head guarantees indeformable when two side templates pour the common steel tube of top φ 48*3.5mm.
6, it at side wall combined steel formwork bottom 2.5m, is reinforced using I 12a I-steel, at I-steel both ends
Jacking is welded in advance, using the telescopic adjustment of jacking, impetus is arranged on the second placing of reinforcement being embedded on bottom plate in advance,
Side wall gang form middle part is reinforced.
7, tentatively side wall gang form verticality is calibrated with traditional sash weight method, if live perpendicularity deviation is larger,
It can be supported on side wall gang form lowest level framed bent by hand 10T jack and hold the adjusting for carrying out verticality in vitro.
8, it is greater than the structural sections of 13.4m for width, scene uses 45a I-steel, together every 1.5m setting, every road length
12m is supported on apart from the position side wall die head 1.5m；Jacking is welded in advance at I-steel both ends, utilizes the flexible tune of jacking
Section, reinforces side wall gang form top.
9. for the structural sections of width 13.4m, scene reinforces top using 2 25a I-steel being welded in advance, every
Together, every road length 11.4m, 2 layers setting up and down, first layer setting height is 1m under template top, second layer setting height for 2m setting
For 3m under template top.After the completion of upper layer and lower layer channel steel is reinforced, horizontal direction is welded on a 48*3.5mm common steel tube to top
Two bors d's oeuveres 25a I-steel among, guarantee concreting when I-steel stabilization, weld jacking in advance at I-steel both ends, benefit
With the telescopic adjustment of jacking, side wall gang form top is reinforced.
10, the verticality and side wall headroom ruler by professional survey crew scene to the side wall combined steel tentatively reinforced
Little progress row accurate calibration, little deviation, can be rotated by the jacking that I-steel both ends are welded and be adjusted if it exists.
11, after the completion of side wall combined steel is reinforced, springboard is hung to job platform with 25T truck crane, springboard must completely be spread,
Job platform must be provided with protection guardrail, it is ensured that the safety of construction personnel in side wall concrete casting process.
2.7 side walls jump section construction concreting and maintenance
1, concreting is pumped into mould using day, and pump tube length must satisfy side wall and pour requirement for height, prevent from mixing
Solidifying soil, which inclines, falls excessive height, concrete disintegration.
2, slump control is in 160mm~200mm.It is layered from bottom to top, from both ends to intermediate symmetry when pouring
Casting, lift height be no more than 30cm, the time difference be no more than 2h, it is ensured that do not form cold seam, vibrate a upper layer concrete when, should be inserted into
The 1/3 of next layer concrete thickness, it is ensured that levels concrete combines closely knit.
3, strict control concreting speed sends special messenger to combine side wall when concreting height reaches 2m or more
Punching block is reinforced situation and is monitored in real time.
4, it when side wall concrete pours, is alternately poured simultaneously using two sides side wall, avoids unilateral side wall primary concreting speed
It spends fastly, the compression of side wall combined steel formwork is excessive to generate the mould phenomenon that rises.
5, it should not interrupted continuously when concreting, power supply for construction be carried out before pouring, with water, spare equipment and spare power generation
The preparation of machine.
6, concrete vibrating uses poker vibrator, vibrates and no longer declines to surface, bubble significantly reduces, and surface starts
Bleeding is advisable, and guarantees real outer light in concrete.
7, after concrete final set, heat and moisture preserving maintenance is sprayed using geotextiles and with special messenger, the time is no less than 14 days, coagulation
Native core temperature is no more than 60 degree, and highest is not greater than 65 degree, difference, the surface temperature of concrete core temperature and surface temperature
And the difference of environment temperature is not preferably greater than 20 degree, and the difference of maintenance coolant-temperature gage and surface temperature of concrete is not greater than 15 degree, prevents
There is crack.
2.8 side wall combined steel formworks jump section movement installation
1, should ensure that when side wall demoulding concrete surface and corner angle it is injury-free subject to, it is necessary to concrete reach design and
It could demoulding after code requirement intensity.
2, when carrying out the jump section construction of side wall combined steel formwork, if jump section section is smaller, when within the scope of 15m, using two
Platform Xu work 50T truck crane directly carries out the handling of side wall combined steel.
3, when carrying out the jump section construction of side wall combined steel formwork, if jump section section is larger, when outside 15m range, using one
Platform 25T Xu work truck crane is allocated and transported to DCY100 type power flat bed transport vehicle, and transport is to preparing next group of jump section construction section.
4, before side wall jumps section construction, good jump section section should be planned in advance, avoids repeatedly having bad luck side wall combined steel formwork, cause
The waste of mechanical equipment, personnel.
5, the storage position of good next group of side wall construction section combined steel formwork, the storage of side wall combined steel formwork are planned in advance
When, two pieces of templates are close to put face-to-face steady.
Finally, it should be noted that it is obvious to a person skilled in the art that the application is not limited to above-mentioned exemplary implementation
The details of example, and without departing substantially from spirit herein or essential characteristic, it can realize in other specific forms
The application.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this Shen
Range please is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are included in the application.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of tunnel sidewalls support shuttering, which is characterized in that including multiple template unit；Multiple modular units are described in
The length direction in tunnel is arranged side by side；
The modular unit includes panel assembly and support component；The panel assembly includes multiple panels, and the panel is along tunnel
The setting of road length direction, multiple panels are sequentially connected along the short transverse of the panel, the total height of multiple panels
It is consistent with the tunnel height；
The both ends of the panel are arranged in the support component, and the support component is perpendicular to the panel, the support group
Part is used to support the panel；
The support component includes right angled triangle support frame, trapezoidal support frame, the first connecting plate and the second connecting plate,
The upper end of the trapezoidal support frame is arranged in the right angled triangle support frame, and the right angled triangle support frame is wherein
It is provided with the first connecting plate at one right-angle side, is provided with the second connecting plate at the short right-angle side of the trapezoidal support frame；Described
One connecting plate is connect by bolt with second connecting plate.
2. tunnel sidewalls support shuttering according to claim 1, which is characterized in that the right angled triangle support frame it is straight
The right-angle side of the arm of angle and the trapezoidal support frame is in same vertical straight line；The bevel edge of the right angled triangle support frame and institute
The bevel edge for stating trapezoidal support frame is on same straight line, and the bevel edge of the right angled triangle support frame and the trapezoidal support frame
Bevel edge on be provided with support protrusion, be provided with connecting rod in the adjacent support protrusion in the adjacent support component,
The connecting rod is for connecting the adjacent support component.
3. tunnel sidewalls support shuttering according to claim 2, which is characterized in that the support component further includes lower margin branch
Strut, the lower margin support rod are provided with multiple, and multiple lower margin support rods are used to support the bottom edge of the trapezoidal support frame.
4. tunnel sidewalls support shuttering according to claim 2, which is characterized in that the support component further includes tiltedly foot
Support rod, the tiltedly foot support rod are provided with multiple, and multiple tiltedly foot support rods are used to support the trapezoidal support frame
Right-angle side.
5. tunnel sidewalls support shuttering according to claim 1, which is characterized in that be provided with gusset, institute on the panel
State gusset quantity be it is multiple, multiple gussets are arranged along the length direction of the panel, and multiple gussets are equidistant
Distribution.
6. tunnel sidewalls support shuttering according to claim 1, which is characterized in that it further include reinforcing rib, the reinforcing rib
It is arranged inside the right angled triangle support frame, the reinforcing rib is additionally arranged inside the trapezoidal support frame.
7. tunnel sidewalls support shuttering according to claim 1, which is characterized in that further include bolt, the bolt is used for
Connect the panel and the support component.
8. a kind of tunnel variable section structure side wall jumps section construction, which is characterized in that the engineering method includes the following steps；
Step S1, initial data acquisition before bracing members are removed；
Step S2, side wall jump section construction steel support and unload power；
Step S3, side wall are jumped section construction steel support and are removed；
Step S4, side wall jump section waterproof coiled material construction；
Step S5, side wall jump the binding of section construction reinforced bar；
Step S6, installation such as the described in any item tunnel sidewalls support shutterings of claim 1-7；
Step S7, side wall jump section construction concreting and maintenance；
Step S8, as the described in any item tunnel sidewalls support shutterings of claim 1-7 jump section movement installation.
9. variable section structure side wall in tunnel according to claim 8 jumps section construction, which is characterized in that in step S6
In, it is reinforced when for convenience of tunnel sidewalls support shuttering installation, pre-buried two rows of screw-thread steels when construction, longitudinal at left and right sides of bottom plate
0.5 meter of spacing, as supporting point when reinforcing.
10. variable section structure side wall in tunnel according to claim 8 jumps section construction, which is characterized in that in step S8
In, when side wall demoulding should ensure that concrete surface and corner angle it is injury-free subject to, it is necessary to reach design in concrete and specification wanted
Asking could demoulding after intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474785.0A CN109386010A (en) | 2018-12-04 | 2018-12-04 | Tunnel sidewalls support shuttering and tunnel variable section structure side wall jump section construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474785.0A CN109386010A (en) | 2018-12-04 | 2018-12-04 | Tunnel sidewalls support shuttering and tunnel variable section structure side wall jump section construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109386010A true CN109386010A (en) | 2019-02-26 |
Family
ID=65429039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811474785.0A Pending CN109386010A (en) | 2018-12-04 | 2018-12-04 | Tunnel sidewalls support shuttering and tunnel variable section structure side wall jump section construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109386010A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007284895A (en) * | 2006-04-13 | 2007-11-01 | Toda Constr Co Ltd | Underground railway construction method |
| CN202228087U (en) * | 2011-10-17 | 2012-05-23 | 北京城建道桥建设集团有限公司 | Split-type movable formwork device for tunnel partition wall |
| CN102704949A (en) * | 2012-06-14 | 2012-10-03 | 中交四航局第一工程有限公司 | No-pull rod side wall construction method for underground tunnel and formwork trolley for construction |
| CN108194136A (en) * | 2017-12-31 | 2018-06-22 | 中铁十九局集团第二工程有限公司 | Lining construction method |
| CN108589773A (en) * | 2018-05-03 | 2018-09-28 | 上海宝冶集团有限公司 | A kind of construction system and form of construction work of piping lane engineering |
| CN209429168U (en) * | 2018-12-04 | 2019-09-24 | 中铁六局集团有限公司 | Tunnel sidewalls support shuttering |
-
2018
- 2018-12-04 CN CN201811474785.0A patent/CN109386010A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007284895A (en) * | 2006-04-13 | 2007-11-01 | Toda Constr Co Ltd | Underground railway construction method |
| CN202228087U (en) * | 2011-10-17 | 2012-05-23 | 北京城建道桥建设集团有限公司 | Split-type movable formwork device for tunnel partition wall |
| CN102704949A (en) * | 2012-06-14 | 2012-10-03 | 中交四航局第一工程有限公司 | No-pull rod side wall construction method for underground tunnel and formwork trolley for construction |
| CN108194136A (en) * | 2017-12-31 | 2018-06-22 | 中铁十九局集团第二工程有限公司 | Lining construction method |
| CN108589773A (en) * | 2018-05-03 | 2018-09-28 | 上海宝冶集团有限公司 | A kind of construction system and form of construction work of piping lane engineering |
| CN209429168U (en) * | 2018-12-04 | 2019-09-24 | 中铁六局集团有限公司 | Tunnel sidewalls support shuttering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101838968B (en) | Double track bridge construction process crossing existing railway operational lines | |
| CN106498950B (en) | Anchor head is placed in the implementation method of the Pile-Anchor Supporting for Deep Excavation system of pile body | |
| CN108824220A (en) | A kind of cast-in-place support and construction method of the rigid structure of cantilever T-type | |
| CN107489098B (en) | Concrete prefabricated welding type guardrail and installation construction method | |
| CN102031784A (en) | Slope protection pile pouring and cable bolting construction method for deep foundation pit | |
| CN104481552B (en) | Super-huge karst cave hole roof fall stone protection construction method | |
| CN102400470B (en) | Construction method for multi-platform deep foundation of hillside high-rise building | |
| CN103603359A (en) | Deep foundation pit diagonal bracing support structure demolition method | |
| CN205576955U (en) | Raft foundation's reinforced structure is displaced into to strip footing | |
| CN110863498A (en) | Deep foundation pit combined supporting construction method next to subway station | |
| CN103410320A (en) | Dual-barrel continuous-slipping construction method of flexible platform of silo | |
| CN112627030A (en) | Gravity type anchorage structure of cable saddle buttress foundation and approach bridge foundation and construction method | |
| CN109488347A (en) | A kind of excavation construction method for special formation chamber | |
| CN104894954A (en) | Overall mounting and constructing method of pier stud reinforcing steel bars of urban bridge | |
| CN103822017A (en) | Construction method based on laying of cable duct bank | |
| CN206408630U (en) | Anchor head is placed in the Pile-Anchor Supporting for Deep Excavation system of pile body | |
| CN114164764B (en) | Construction method of high-filling bridge bearing platform structure | |
| CN209429168U (en) | Tunnel sidewalls support shuttering | |
| CN104264682A (en) | Anchor traction wall protection pile base layer concrete beam support pouring technology | |
| CN106835992A (en) | A kind of arcuate structure clear-water concrete construction of cast-in-situ box-beam method | |
| CN104480915B (en) | A kind of anti-rail hydraulic climbing formwork for high gradient slope concreting | |
| CN209293068U (en) | A kind of open trench tunnel falsework system | |
| CN111576832A (en) | Construction system and construction method of cantilever multi-bent | |
| CN109386010A (en) | Tunnel sidewalls support shuttering and tunnel variable section structure side wall jump section construction | |
| CN113250228B (en) | Construction method of embedded foundation fixing device of multi-story building steel reinforced concrete core tube structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |