CN108505764A - A kind of construction of underground depth large-engineering is marked time bench channel and its construction method - Google Patents
A kind of construction of underground depth large-engineering is marked time bench channel and its construction method Download PDFInfo
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- CN108505764A CN108505764A CN201810524868.XA CN201810524868A CN108505764A CN 108505764 A CN108505764 A CN 108505764A CN 201810524868 A CN201810524868 A CN 201810524868A CN 108505764 A CN108505764 A CN 108505764A
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- 238000010276 construction Methods 0.000 title claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 101
- 239000010959 steel Substances 0.000 claims abstract description 101
- 238000003466 welding Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 11
- 239000003973 paint Substances 0.000 claims description 11
- 210000002421 cell wall Anatomy 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000011265 semifinished product Substances 0.000 claims description 10
- 239000003550 marker Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000012552 review Methods 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 241000282326 Felis catus Species 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 235000021050 feed intake Nutrition 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G27/00—Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
A kind of construction of underground depth large-engineering is marked time bench channel and its construction method, and underground engineering construction passage technology field is belonged to.It is characterized in that：It including vertical upright column supporting rack, laterally sockets and landing beam, vertical upright column supporting rack includes vertical square tube column（1）With square tube column（1）Bottom is fixedly connected and is embedded in the fixing steel plate of underground（2）, square tube column（1）Top is equipped with plug connector, and forming vertical multilayer grafting by plug connector assembles, square tube column（1）Lateral connection vertical equity pull rod（7）, and multiple landing beams disposed in parallel up and down are installed, cant beam is equipped between adjacent two landing beam, and bench is installed by cant beam（17）.The present invention is narrow narrow suitable for construction site, and the small underground depth large-engineering of geosyncline excavation foundation working face replaces traditional easy tilting steel tube fastener cat ladder, channel that can meet 2 bursts of stream of people's passages on and off duty, and personnel are unimpeded, safe and reliable.
Description
Technical field
A kind of construction of underground depth large-engineering is marked time bench channel and its construction method, and underground engineering construction passage technology is belonged to
Field.
Background technology
Currently, China's green science and technology level is continuously improved, construction industry management and production ability and technical merit are proposed more
High requirement.To economize the land resource to greatest extent, architectural engineering gradually extends to the underground space, therewith, deep-foundation pit engineering
More and more, underground engineering amount is doubled and redoubled, the duration accordingly extends.Traditional easy steel tube fastener formula cat ladder channel is uncomfortable
For underground engineering construction." underground depth large-engineering construction mark time bench rectangular triangle channel " handsome in appearance, safe and reliable, personnel
It is unimpeded, there is the effect of substituting traditional cat ladder channel.Underground deep big foundation pit engineering, because of live narrow narrow, geosyncline excavation foundation work
Make that face is small, traditional easy tilting steel tube fastener cat ladder can not be used.Make every effort to be directed to engineering present situation, develops a kind of specification
Change, tool, regularization escape way, and simple in structure, installation speed is fast, can assemble on the spot at the construction field (site).
Invention content
The technical problem to be solved by the present invention is to：Overcome the deficiencies of the prior art and provide a kind of standardization, tool,
Simple in structure, the underground depth large-engineering construction that can quickly assemble on the spot at the construction field (site) is marked time bench channel and its construction method.
The technical solution adopted by the present invention to solve the technical problems is：A kind of underground depth large-engineering construction bench of marking time is logical
Road, it is characterised in that：It including vertical upright column supporting rack, laterally sockets and landing beam, vertical upright column supporting rack includes vertical side
Tube column is fixedly connected with square tube column bottom and is embedded in the fixing steel plate of underground, is equipped with plug connector at the top of square tube column, leads to
It crosses plug connector and forms vertical multilayer grafting assembling, square tube column lateral connection vertical equity pull rod, and install multiple parallel up and down
The landing beam of setting is equipped with cant beam between adjacent two landing beam, and installs bench by cant beam.
The plug connector is square-tube joint.
Multigroup hard support element and soft tension member are equipped between the vertical upright column supporting rack side and ground groove groove wall.
It is equipped with rain-proof steel plate above the bench and prevents pounding plank.
A kind of construction of underground depth large-engineering is marked time the construction method in bench channel, it is characterised in that：Include the following steps：
1）, processing and fabricating steel ladder semi-finished product or parts, geosyncline slot bottom is next by ground along cell wall, two, three layers of waist slab is drawn
It is divided into multiple assembled rigid units, each component, which is then made as unidirectional single flight, with shaped steel marks time bench semi-finished product or parts；
The waist slab of underground engineering is divided into several assembled rigid units along cell wall in slot bottom designated position, then uses shaped steel each portion
Part is made as unidirectional single flight and marks time bench semi-finished product or parts, and it is assembled finally to carry out linear type, and formation is marked time bench straight three
Angular steel ladder channel, it is ensured that engineering construction personnel are unimpeded.
It tests to surface quality of steel before blanking, can feed intake use after qualified, stringent construction in line with the drawings, according to diagram
Geometric dimension preparation gas cutting waste and welding contracted quantity, must remove iron oxide after cutting.Determine reasonable component welding sequence,
To reduce generated welding stress and welding deformation in steel construction.The processing such as steel column main frame, bench and guard system are total
Amount is 5.48 tons.
2）, from the bottom up install console mode scaffold；
3）, line setting, before pouring cushion layer concrete, according to steel ladder plan view setting-out, determine the accurate position of vertical upright column supporting rack
It sets, and plays the line of ink marker and express；
4）, installation vertical upright column supporting rack, bottom vertical upright column supporting rack is connected and composed by rod piece with four square tube columns, is adopted
It is vertically built to form multilayer vertical upright column supporting rack with the mode of grafting；
Steel column support system is connected and composed by rod piece with four steel pipes according to prior design drawing.5.48 tons of steel ladder gross weight, it is false
If 30 people are current on steel ladder simultaneously, then personnel pass through load30KN adds up to 8.48 tons/1.2*1*4=4.8m2=1.767 tons,
The engineering design foundation bearing capacity is 140KPa.Meet the payload values of steel ladder.Scene is without prejudice to have mounting condition.Installation letter
Single, flexible, progress is fast.Security risk factor can be excluded, engineering present situation is suitble to.
5）, pre-embedded steel slab, before pouring blinding layer concrete, vertical upright column support frame bottom by line of ink marker preburied column position steel
Square tube column is fixedly welded on fixing steel plate by plate again after cushion layer concrete solidification；
6）, landing beam installation and laterally socket, in vertical upright column supporting rack assembling process, while mounting platform beam and vertical equity
Pull rod, and then form the steel column frame of crisscross connection；
7）, size review；
8）, bench and main frame install, bench is connected by screw bolts mode with main frame, and crane coordinates man-made assembly, according to
Scheme requirement, substep are installed, first step comprehensive review steel column frame and scaffold situation, it is ensured that and it is safe and punctual, meet bench
Mounting condition；Second step installs every layer of steel ladder cant beam；Third walks mounting platform plate, step plate；One, two steps must be by examination side
It can carry out next procedure；Cant beam is connected by screw bolts with square tube column and landing beam and is integrated；
9）, railing, foot guard plate installation carry out Unified number to railing, sit in the right seat, flat for every layer of ladder length difference
Platen and the corresponding position bolt of waist slab periphery are connect with steel column, and horizontal bar is installed in bench both sides, landing slab periphery
Bar, foot guard plate are fixed on thread tapping on vertical railing；
10）, antirust safeguard, brush antirust paint；Two painters are arranged from top to bottom to brush, red lead anti-corrosive paint one time, blue cast
With paint both sides；Antirust paint brushing finishes dry after, can brush mixed paint；
11）, scaffold remove；
12）, steel column base foundation waterproof, the steel plate turned at square tube column root raft plate height 1/2 on basic waterproof layer stops
Water ring bottom surface simultaneously seals, waterproof construction.
Step 2）The square tube column top welds square set pipe fitting, and square casing connector side is welded another square casing and connect
Head links for landing beam and square tube column, and upper section square tube can be inserted into the side of square tube column top welding when square tube column assembles
In casing joint, fixation is tightened with bolt.
Step 6）In for ensure steel column frame system stability, 6 hard supporting points, 2 soft drawns are set on steel column
Node uses the channel steel waist rail top pull of reinforcing bar, steel wire rope and its cell wall combined supporting respectively.
Step 9）With step 10）Between, angle bar frame can be installed at the top of square tube column and at following 600mm, first installed
Lower part flashing board, then top is installed and prevents pounding plate.
Compared with prior art, advantageous effect possessed by the present invention is：
The present invention is narrow narrow suitable for construction site, and the small underground depth large-engineering of geosyncline excavation foundation working face replaces traditional letter
Easy tilting steel tube fastener cat ladder, channel can meet 2 bursts of stream of people's passages on and off duty, and personnel are unimpeded, safe and reliable.With it is current
The two-way double bench derrick type channels of marking time of running of derrick type are compared, and can be effectively utilized the unused long and narrow space of trough rim, be applied to engineering
Work is without influence.
The waist slab of underground engineering is divided into several assembled rigid units along cell wall in slot bottom designated position, then uses shaped steel handle
Each component is made as unidirectional single flight and marks time bench semi-finished product or parts, and it is assembled finally to carry out linear type, and formation is marked time bench
Rectangular triangle steel ladder channel, it is ensured that engineering construction personnel are unimpeded.Assembling is fast, can come into operation in a short time.In column root raft
1/2 height of plate thickness sets steel plate for sealing water, and basic waterproof layer turns over, good water-proof effect tight to steel plate for sealing water bottom surface, sealing.
Description of the drawings
Fig. 1 is that depth large-engineering construction in underground is marked time bench channel design schematic diagram.
Fig. 2 is the part A close-up schematic view of Fig. 1.
Fig. 3 is that column platform beam frame system ceases platform plan view.
Fig. 4 is that depth large-engineering construction in underground is marked time bench channel mounting plane schematic diagram.
Fig. 5 is that depth large-engineering construction in underground is marked time bench passage construction flow chart.
Wherein, 1, square tube column 2, fixing steel plate 3, square-tube joint 1, square-tube joint 25, landing beam 6,
Zinc-coated angle steel 7, vertical equity pull rod 8, soft drawn contact 9, hard supporting point 10, steel wire rope 11, channel steel waist rail 12,
Reinforcing bar 13, bolt 14, steel ladder cant beam 15, landing slab 16, step plate 17, bench 18, accommodation rail 19, gear
Sole 20, vertical railing 22, angle bar frame 23, rain-proof steel plate 24, is prevented pounding plank 25, base at horizontal rails 21
Plinth waterproof layer 26, steel plate water-stopping ring 27, cell wall 28, foundation trench side.
Specific implementation mode
Fig. 1 ~ 5 are highly preferred embodiment of the present invention, and 1 ~ 5 the present invention will be further described below in conjunction with the accompanying drawings.
With reference to attached drawing 1 ~ 5：A kind of construction of underground depth large-engineering is marked time bench channel, including vertical upright column supporting rack, transverse direction
It sockets and landing beam, vertical upright column supporting rack includes that vertical square tube column 1 is fixedly connected and is embedded in 1 bottom of square tube column
The fixing steel plate 2 of underground, 1 top of square tube column are equipped with plug connector, and forming vertical multilayer grafting by plug connector assembles, and square tube is vertical
1 lateral connection vertical equity pull rod 7 of column, and multiple landing beams disposed in parallel up and down are installed, it is set between adjacent two landing beam
There is cant beam, and bench 17 is installed by cant beam.
Plug connector is square-tube joint 1 and square-tube joint 24.It is set between vertical upright column supporting rack side and ground groove groove wall 27
There are multigroup hard support element and soft tension member.17 top of bench is equipped with rain-proof steel plate 23 and prevents pounding plank 24.
1, processing and fabricating steel ladder semi-finished product or parts, geosyncline slot bottom designated position it is along cell wall that ground is next, two, three layers
Waist slab be divided into multiple assembled rigid units, each component, which is then made as unidirectional single flight, with shaped steel marks time bench semi-finished product or zero
Component；It tests to surface quality of steel before blanking, can feed intake use after qualified, and stringent construction in line with the drawings is several according to illustrating
What size preparation gas cutting waste and welding contracted quantity, must remove iron oxide after cutting.Determine reasonable component welding sequence, with
Reduce generated welding stress and welding deformation in steel construction.
Project management department dispatches professional technique worker processing and fabricating steel ladder semi-finished product or parts, to surface quality of steel before blanking
It tests, can feed intake use after qualified, stringent construction in line with the drawings, according to diagram geometric dimension preparation gas cutting waste and welding
Shrinkage must remove iron oxide after cutting.It determines reasonable component welding sequence, is answered with reducing generated welding in steel construction
Power and welding deformation.It is 5.48 tons that steel column main frame, bench and guard system etc., which process total amount,.Steel column main frame, bench
And the processing total amount such as guard system is 5.48 tons.
2, console mode scaffold is installed from the bottom up；It is from bottom to top disposably pricked and is set by two frame works, forbid violation operation.
It sets up and finishes, qualified rear can be used by inspection；
3, line setting before pouring cushion layer concrete, according to steel ladder plan view setting-out, determines the accurate position of vertical upright column supporting rack
It sets, and plays the line of ink marker and express；
4, vertical upright column supporting rack is installed, bottom vertical upright column supporting rack is connected and composed by rod piece with four square tube columns 1, is adopted
It is vertically built to form multilayer vertical upright column supporting rack with the mode of grafting；
By the pre-buried 16 pieces of 300*300*15 stud location steel plates of the line of ink marker, again by 100*100*4 square tube columns after cushion layer concrete solidification
It is fixedly welded on the steel plate；Often section column top welds 120*120*5 square-tube joints, and column can insert upper section column when assembling
Enter in the square tube, fixation is tightened with bolt.
In column assembling process, while 80*80*35 landing beams and vertically and horizontally girt being installed, forms steel column frame
System.In assembling process must the stringent above erection sequence, to remove installation accumulated error, it is ensured that verticality of stand column.To ensure
The stability of steel column frame sets 6 hard supporting points, 2 soft drawn nodes on steel column and uses 22 reinforcing bars of Φ, 12 steel wires of Φ respectively
The channel steel waist rail top pull of rope and its cell wall combined supporting.
5, before pouring blinding layer concrete, steel is positioned in vertical upright column support frame bottom by line of ink marker preburied column for pre-embedded steel slab
Square tube column 1 is fixedly welded on fixing steel plate 2 by plate 2 again after cushion layer concrete solidification；
6, landing beam is installed and is laterally socketed, in vertical upright column supporting rack assembling process, while mounting platform beam 5 and vertical equity
Pull rod 7, and then form the steel column frame of crisscross connection；Landing beam 5 is made of Zinc-coated angle steel；
7, size is checked；
8, bench and main frame are installed, and bench is connected by screw bolts mode with main frame, and crane coordinates man-made assembly, according to side
Case requirement, substep are installed, first step comprehensive review steel column frame and scaffold situation, it is ensured that and it is safe and punctual, meet bench peace
Dress condition；Second step installs every layer of steel ladder cant beam；Third walks mounting platform plate, step plate；One, two steps must by check and accept can
Carry out next procedure；Cant beam is connected by screw bolts and is integrated with square tube column 1 and landing beam 5；
9, railing, foot guard plate installation carry out Unified number to railing, sit in the right seat, in platform for every layer of ladder length difference
Plate and the corresponding position bolt of waist slab periphery are connect with steel column, and horizontal rails are installed in bench both sides, landing slab periphery,
Foot guard plate is fixed on thread tapping on vertical railing；
10, antirust is safeguarded, brushes antirust paint；Arrange two painters from top to bottom brush, red lead anti-corrosive paint one time, blue cast and
Paint both sides；Antirust paint brushing finishes dry after, can brush mixed paint；
11, scaffold is removed；
12, steel column base foundation waterproof, the steel plate turned at 1 root raft plate height 1/2 of square tube column on basic waterproof layer stop
26 bottom surface of water ring simultaneously seals, waterproof construction.The professional waterproof worker construction that technical merit is high is selected and appointed, and tracking and supervising, checks, refer to
It leads.Column root flashing is turned over to seal ring bottom surface, sealing tightly, and seal ring floor height is 1/2 plank thickness.
Square set pipe fitting 1 is welded on 1 top of square tube column, and one 3 side of square set pipe fitting welding square set pipe fitting 24 is used for
Landing beam links with square tube column 1, can be tightened in upper section square tube plug-in-sleeve connector one with bolt solid when square tube column assembles
It is fixed.
To ensure the stability of steel column frame system in step 6,6 hard supporting points, 2 soft drawn knots are set on steel column
Point uses the channel steel waist rail top pull of reinforcing bar, steel wire rope and cell wall combined supporting respectively.Between step 9 and step 10, it can be wanted by scheme
Installation angle bar frame at the top of square tube column and at following 600mm is sought, lower part flashing board is first installed, then top is installed and prevents pounding plate.
Angle bar frame is installed by scheme requirement at the top of column and at following 600mm, lower part flashing board is first installed, then top is installed and prevents pounding
Plate.
The present invention is narrow narrow suitable for construction site, the small underground depth large-engineering of geosyncline excavation foundation working face, substitution tradition
Easy tilting steel tube fastener cat ladder, channel can meet 2 bursts of stream of people's passages on and off duty, and personnel are unimpeded, safe and reliable.With mesh
The two-way double bench derrick type channels of marking time of running of preceding derrick type are compared to that can effectively utilize the unused long and narrow space of trough rim, to engineering
Construction is without influence.Each component can be made as unidirectional single flight with shaped steel to mark time bench semi-finished product or parts, finally carry out " one "
Font is assembled, forms rectangular triangle steel ladder channel, and assembling is fast, can come into operation in a short time.The plank thickness 1/2 in column root
Height sets steel plate for sealing water, and basic waterproof layer turns over, good water-proof effect tight to steel plate for sealing water bottom surface, sealing.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, according to the technical essence of the invention to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (8)
- The bench channel 1. a kind of underground depth large-engineering construction is marked time, it is characterised in that：It is socketed including vertical upright column supporting rack, transverse direction And landing beam, vertical upright column supporting rack include vertical square tube column（1）With square tube column（1）Bottom is fixedly connected and is embedded in The fixing steel plate of underground（2）, square tube column（1）Top is equipped with plug connector, and forming vertical multilayer grafting by plug connector assembles, side Tube column（1）Lateral connection vertical equity pull rod（7）, and multiple landing beams disposed in parallel up and down are installed, in adjacent two platform It is equipped with cant beam between beam, and bench is installed by cant beam（17）.
- The bench channel 2. a kind of underground depth large-engineering construction according to claim 1 is marked time, it is characterised in that：Described inserts Fitting is square-tube joint.
- The bench channel 3. a kind of underground depth large-engineering construction according to claim 1 is marked time, it is characterised in that：Described is perpendicular To upright supports frame side and ground groove groove wall（27）Between be equipped with multigroup hard support element and soft tension member.
- The bench channel 4. a kind of underground depth large-engineering construction according to claim 1 is marked time, it is characterised in that：The ladder Section（17）Top is equipped with rain-proof steel plate（23）Plank is pounded with anti-（24）.
- The construction method in bench channel 5. a kind of underground depth large-engineering construction is marked time, it is characterised in that：Include the following steps：1）, processing and fabricating steel ladder semi-finished product or parts, geosyncline slot bottom is next by ground along cell wall, two, three layers of waist slab is drawn It is divided into multiple assembled rigid units, each component, which is then made as unidirectional single flight, with shaped steel marks time bench semi-finished product or parts；2）, from the bottom up install console mode scaffold；3）, line setting, before pouring cushion layer concrete, according to steel ladder plan view setting-out, determine the accurate position of vertical upright column supporting rack It sets, and plays the line of ink marker and express；4）, installation vertical upright column supporting rack, with four square tube columns（1）The support of bottom vertical upright column is connected and composed by rod piece Frame is vertically built to form multilayer vertical upright column supporting rack by the way of grafting；5）, pre-embedded steel slab, before pouring blinding layer concrete, vertical upright column support frame bottom press line of ink marker preburied column fixing steel plate （2）, again by square tube column after cushion layer concrete solidification（1）It is fixedly welded on fixing steel plate（2）On；6）, landing beam installation and laterally socket, in vertical upright column supporting rack assembling process, while mounting platform beam（5）And it is longitudinal Girt（7）, and then form the steel column frame of crisscross connection；7）, size review；8）, bench and main frame install, bench is connected by screw bolts mode with main frame, and crane coordinates man-made assembly, according to Scheme requirement, substep are installed, first step comprehensive review steel column frame and scaffold situation, it is ensured that and it is safe and punctual, meet bench Mounting condition；Second step installs every layer of steel ladder cant beam；Third walks mounting platform plate, step plate；One, two steps must be by examination side It can carry out next procedure；Cant beam and square tube column（1）And landing beam（5）It is connected by screw bolts and is integrated；9）, railing, foot guard plate installation carry out Unified number to railing, sit in the right seat, flat for every layer of ladder length difference Platen and the corresponding position bolt of waist slab periphery are connect with steel column, and horizontal bar is installed in bench both sides, landing slab periphery Bar, foot guard plate are fixed on thread tapping on vertical railing；10）, antirust safeguard, brush antirust paint；11）, scaffold remove；12）, steel column base foundation waterproof, turn to square tube column on basic waterproof layer（1）Steel plate at root raft plate height 1/2 Seal ring（26）Bottom surface simultaneously seals, waterproof construction.
- The construction method in bench channel 6. a kind of underground depth large-engineering construction according to claim 5 is marked time, feature exist In：Step 2）The square tube column（1）Square set pipe fitting is welded on top, and another party's casing joint is welded in square casing connector side For landing beam（5）With square tube column（1）Connection, square tube column（1）Upper section square tube can be inserted into square tube column when assembling（1）Top In the square set pipe fitting for holding welding, fixation is tightened with bolt.
- The construction method in bench channel 7. a kind of underground depth large-engineering construction according to claim 5 is marked time, feature exist In：Step 6）In for ensure steel column frame stability, 6 hard supporting points are set on steel column frame（9）, 2 soft drawn knots Point（8）, reinforcing bar is used respectively（12）, steel wire rope（10）With its cell wall（27）The channel steel waist rail of combined supporting（11）Top pull.
- The construction method in bench channel 8. a kind of underground depth large-engineering construction according to claim 5 is marked time, feature exist In：Step 9）With step 10）Between, it can be by scheme requirement in square tube column（1）Angle steel branch is installed at top and following 600mm Frame first installs lower part flashing board, then installs top and prevent pounding plate.
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| CN201810524868.XA CN108505764A (en) | 2018-05-28 | 2018-05-28 | A kind of construction of underground depth large-engineering is marked time bench channel and its construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456489A (en) * | 2020-04-29 | 2020-07-28 | 中建四局第六建设有限公司 | Sizing steel ladder for people to get on and off |
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