CN109403354A - A kind of whirling well hangs upside down the construction method of retaining wall deep foundation pit support - Google Patents
A kind of whirling well hangs upside down the construction method of retaining wall deep foundation pit support Download PDFInfo
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- CN109403354A CN109403354A CN201811420916.7A CN201811420916A CN109403354A CN 109403354 A CN109403354 A CN 109403354A CN 201811420916 A CN201811420916 A CN 201811420916A CN 109403354 A CN109403354 A CN 109403354A
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- punching block
- concrete
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- wall
- well
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
-
- 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
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/125—Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the lining of the shaft
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The present invention relates to the realm of building construction, specifically a kind of whirling well hangs upside down the construction method of retaining wall deep foundation pit support, comprising the following steps: 1) surveying setting-out positioning, production punching block；2) barriers such as underground concrete are abolished；3) well location, label are checked, is cut the earth for the first time；4) wall built-up reinforcing bar, shuttering are squeezed into assembling reinforcement；5) first layer breast wall concrete is poured；6) electric single-beam crane is installed；7) one section of soil, assembling reinforcement are dug down；8) punching block is slowly put down with electric single-beam crane after the completion of first layer concrete curing；9) breast wall concrete is poured；10) circulating repetition the 7) to the 9) step excavator is hung out by crane after cutting the earth to designed elevation, removing punching block is simultaneously hung out by electric single-beam crane segmentation, then casting shaft bottom bed course；Construction efficiency of the present invention greatly improves, and labor intensity reduces, on ambient enviroment without influence.
Description
Technical field
The present invention relates to the realm of building construction, specifically a kind of whirling well hangs upside down the construction method of retaining wall deep foundation pit support.
Background technique
It is deep basal pit that cutting depth, which is more than 5 meters of hole, in architectural engineering, is needed in deep foundation pit construction operation to foundation pit retaining wall
Supporting, existing support pattern have following several: one is slope spray plane supporting, easy construction securely and reliably, but needs to destroy
Ambient enviroment, and it is only applicable to 5-6 meters of foundation pits below；One is stake top off-load slopes to add cantilever soldier pile retaining structure, and the duration is longer,
Cost is higher, and uses when artificial stake in case of underground obstacle, middle stratification of wind rock stratum pile foundation can not construct；Depth is more than 10 meters of base
Hole generally uses reverse construction, and heavy caliber and depth are more than in 10 meters of Deep foundation Pit excavation largely by artificial work at present
Industry, large labor intensity, the construction period is long, and construction efficiency is low.
Summary of the invention
The object of the invention is in order to solve heavy caliber and depth be more than in 10 meters of Deep foundation Pit excavation largely according to
Manually operation, large labor intensity, the construction period is long, the low problem of construction efficiency, provides a kind of projecting retaining wall depth base of whirling well
Cheat the construction method of supporting.
Concrete scheme of the invention is: a kind of whirling well hangs upside down the construction method of retaining wall deep foundation pit support, including following step
It is rapid:
1) surveying setting-out positioning, production punching block: punching block is made according to the diameter of whirling well, punching block is spliced by several segments dado template
Composition, every section of dado template include two sections of diameters and the matched arc plate of whirling well, are welded with one between two sections of arc plates
The height of the arc roll bending of Duan Shuzhi, arc roll bending is determined according to the height of whirling well；
2) barriers such as underground concrete are abolished；
3) check well location, label, cut the earth for the first time: excavator, which enters in well, digs first segment soil, height of cutting and punching block height phase
Together；
4) assembling reinforcement squeezes into wall built-up reinforcing bar, shuttering: in well inner wall circumferentially fabrication and installation double-layer double-direction steel mesh, by steel
Mould, which is put into well, to be located on the inside of steel mesh；
5) it pours first layer breast wall concrete: being poured a circle concrete into the steel mesh of punching block periphery, form first layer retaining wall knot
Structure；
6) electric single-beam crane is installed: two steel columns, two steel column tops are installed on the top rebars concrete surface of whirling well
Portion is equipped with a triangular truss across whirling well, i-beam track beam is filled under truss, being equipped on i-beam track beam can edge
The mobile derricking gear of i-beam track beam；
7) dig down one section of soil, assembling reinforcement: the first layer concrete 1 conserve during in punching block basis rest jack by punching block
It withstands, then excavator digs down one layer of soil, and height of cutting is identical as punching block height, and the mound dug out is hung by electric single-beam crane
Out, double-layer double-direction steel mesh is made after the completion of cutting the earth；
8) after the completion of first layer concrete curing, wirerope is hung on punching block and is sling punching block with electric single-beam crane, removes thousand
Jin slowly puts down punching block behind top；
9) it pours breast wall concrete: being poured a circle concrete into the steel mesh of punching block periphery, form second layer dado structure；
10) circulating repetition the 7) to the 9) step excavator is hung out by crane after cutting the earth to designed elevation, remove punching block
And hung out by electric single-beam crane segmentation, then it is poured shaft bottom bed course.
It is located on the inside of the two root posts of electric single-beam crane at the top of first layer breast wall concrete of the present invention and a ring is housed
Shape track, equipped with the casting device moved along circular orbit on circular orbit, casting device includes feed hopper, is welded on feed hopper
There is one piece across the support plate above circular orbit, support plate bottom is welded with a root post, and column bottom is equipped with along circular rails
The directive wheel A that road excircle rolls, a horizontal support rod is welded among column, and support boom end is equipped with along circular orbit
The directive wheel B that top surface rolls, feeding funnel bottom part are welded with a feed tube, oriented whirling well inner wall are welded on guide drum outer wall and is prolonged
The bracket stretched, bracket end are equipped with the directive wheel C rolled along whirling well inner wall, and feed tube bottom end outer wall is symmetrically arranged with two and hangs
Ear, two lifting lugs are lifted with one piece of stock guide by wirerope.
The present invention the digs a plash in bottom surface when 7) step is cut the earth to design height again, and a pumping is placed with outside plash
Water in plash is discharged to outside whirling well by water pump.
Built-in fitting is arranged at one when making steel mesh wherein by the present invention, after the completion of concrete curing at built-in fitting from
Up to several U-shaped reinforcing bars of lower welding as vertical ladder, the same position of steel mesh is arranged in each layer of vertical ladder.
The present invention has the advantage that 1, construction efficiency greatly improves compared with prior art, and construction period shortens；2, to week
Collarette border is substantially without influence.
Detailed description of the invention
Fig. 1 is foundation pit support construction schematic diagram of the present invention；
Fig. 2 is the main view of Fig. 1；
Fig. 3 is the three-dimensional view of dado template structure of the present invention；
Fig. 4 is the top view of casting device of the present invention；
Fig. 5 is the A-A view of Fig. 4；
Fig. 6 is the B-B view of Fig. 4；
In figure: the first layer concrete of 1-, 2- circular orbit, 3- electric single-beam crane, 31- steel column, 32- supporting beam, 4- pour filling
It sets, 41- directive wheel A, 42- column, 43- support rod, 44- support plate, 45- directive wheel B, 46- feed hopper, 47- bracket, 48- is led
To wheel C, 49- feed tube, 410- stock guide, 411- wirerope, 412- lifting lug, 5- dado template, 51- arc plate, 52- arc
Roll bending, 53- reinforcing angle, 54- reinforcing rib, 6- whirling well.
Specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 6, the present embodiment is a bore 14.1m, the whirling well of depth 14.5m hangs upside down retaining wall deep basal pit
The construction method of supporting, it is as follows to be computed design parameter: dado thickness 0.45m, projecting retaining wall are divided into 9 layers, from -0.6m to -
15.1m.First layer~eight layer 1.7m every layer high, the high 0.9m of the last layer, whirling well foot mat 0.8m high are specifically included following
Step:
1) surveying setting-out positioning, production punching block: punching block is made according to the diameter of whirling well 6, punching block is spliced by 29 sections of dado templates 5
Composition, every section of dado template 5 include that the arc plate 51(arc length of two sections of radius 7.05m is 1.5m), two sections of arc plates 51 it
Between be welded with one section of vertical arc roll bending 52, the height of arc roll bending 52 is 1.7m；
2) barriers such as underground concrete are abolished: abolishing the barriers such as the concrete of ground and underground with excavator or hydraulic hammer；
3) check well location, label, cut the earth for the first time: excavator, which enters in well, digs first segment soil, height of cutting 1.7m；
4) assembling reinforcement squeezes into wall built-up reinforcing bar, shuttering: in well inner wall circumferentially fabrication and installation double-layer double-direction steel mesh, by steel
Mould, which is put into well, to be located on the inside of steel mesh；
5) it pours first layer breast wall concrete: being poured a circle concrete into the steel mesh of punching block periphery, form first layer retaining wall knot
Structure；
6) install electric single-beam crane 3: at the top of whirling well 6, two steel columns 31, two steel are installed in 1 top surface of the first layer concrete
A piece triangular truss across whirling well 6 is housed at the top of column 31, fills i-beam track beam under truss, on i-beam track beam
Equipped with can be along derricking gear (5t electric hoist) (not shown) that i-beam track beam moves；
7) dig down one section of soil, assembling reinforcement: the first layer concrete 1 conserve during in punching block basis rest jack by punching block
It withstands, then excavator digs down one layer of soil, height of cutting 1.7m, and the mound dug out is hung out by electric single-beam crane 3, cut the earth
At rear production double-layer double-direction steel mesh；
8) after the completion of the maintenance of the first layer concrete 1, wirerope is hung on punching block and is sling punching block with electric single-beam crane 3, is removed
Punching block is slowly put down after jack；
9) it pours breast wall concrete: being poured a circle concrete into the steel mesh of punching block periphery, form second layer dado structure；
10) circulating repetition the 7) to the 9) step excavator is hung out by crane, then directly when cutting the earth to the last layer
Punching block is removed by the foot mat one-time cast-forming of the last layer retaining wall and whirling well 6, after completion and is divided by electric single-beam crane 3
Section is hung out.
Steel mesh described in the present embodiment uses double-layer double-direction14@, 150 reinforcing bar is drawn using 8@600 of ￠ between double steel bar
Reinforcing bar is tied, retaining wall is used16@, 1000 horizontal reinforcement is squeezed into soil, the long 0.9m of reinforcing bar, is in quincuncial arrangement, between every two layers of retaining wall
It pours dense, is stayed with 48.3 steel pipe of ￠ and set drainage hole, exclude in the plash on the outside of crater wall in underground water to hole.
It is located on the inside of the two root posts 31 of electric single-beam crane 3 at the top of first layer breast wall concrete described in the present embodiment and is equipped with one
Circular orbit 2 is enclosed, the casting device 4 moved along circular orbit 2 is housed on circular orbit 2, casting device 4 includes feed hopper 46,
One piece of support plate 44 across 2 top of circular orbit is welded on feed hopper 46,44 bottom of support plate is welded with a root post 42,
42 bottom of column is equipped with the directive wheel A41 rolled along 2 excircle of circular orbit, is welded with a horizontal support among column 42
Bar 43,43 end of support rod are equipped with the directive wheel B45 rolled along 2 top surface of circular orbit, and 46 bottom of feed hopper is welded with one and leads
Barrel 49, the bracket 47 that oriented 6 inner wall of whirling well extends is welded on 49 outer wall of feed tube, and 47 end of bracket is equipped with along whirling well 6
The directive wheel C48 that inner wall rolls, 49 bottom end outer wall of feed tube are symmetrically arranged with two lifting lugs 412, and two lifting lugs 412 pass through wirerope
411 are lifted with one piece of stock guide 410；Feed tube 49 is welded to form by 9 sections, only one section of feed tube when being poured first layer, every casting
One section is welded in 49 bottom of feed tube at next layer；Batch turning side pushes casting device 4 to make its edge in casting Shi Bianxiang feed hopper 46
Circular orbit 2 slowly moves, to complete the casting of whole circle.
The present embodiment the digs a plash in bottom surface when 7) step is cut the earth every time to design height again, is placed with outside plash
Water in plash is discharged to outside whirling well 6 by one suction pump.
Built-in fitting is arranged at one when making steel mesh wherein for the present embodiment, after the completion of concrete curing at built-in fitting
Several U-shaped reinforcing bars are welded from top to bottom as vertical ladder, and the same position of steel mesh is arranged in each layer of vertical ladder.
Claims (4)
1. a kind of whirling well hangs upside down the construction method of retaining wall deep foundation pit support, it is characterized in that: the following steps are included:
1) surveying setting-out positioning, production punching block: punching block is made according to the diameter of whirling well, punching block is spliced by several segments dado template
Composition, every section of dado template include two sections of diameters and the matched arc plate of whirling well, are welded with one between two sections of arc plates
The height of the arc roll bending of Duan Shuzhi, arc roll bending is determined according to the height of whirling well；
2) barriers such as underground concrete are abolished；
3) check well location, label, cut the earth for the first time: excavator, which enters in well, digs first segment soil, height of cutting and punching block height phase
Together；
4) assembling reinforcement squeezes into wall built-up reinforcing bar, shuttering: in well inner wall circumferentially fabrication and installation double-layer double-direction steel mesh, by steel
Mould, which is put into well, to be located on the inside of steel mesh；
5) it pours first layer breast wall concrete: being poured a circle concrete into the steel mesh of punching block periphery, form first layer retaining wall knot
Structure；
6) electric single-beam crane is installed: two steel columns, two steel column tops are installed on the top rebars concrete surface of whirling well
Portion is equipped with a triangular truss across whirling well, i-beam track beam is filled under truss, being equipped on i-beam track beam can edge
The mobile derricking gear of i-beam track beam；
7) dig down one section of soil, assembling reinforcement: the first layer concrete 1 conserve during in punching block basis rest jack by punching block
It withstands, then excavator digs down one layer of soil, and height of cutting is identical as punching block height, and the mound dug out is hung by electric single-beam crane
Out, double-layer double-direction steel mesh is made after the completion of cutting the earth；
8) after the completion of first layer concrete curing, wirerope is hung on punching block and is sling punching block with electric single-beam crane, removes thousand
Jin slowly puts down punching block behind top；
9) it pours breast wall concrete: being poured a circle concrete into the steel mesh of punching block periphery, form second layer dado structure；
10) circulating repetition the 7) to the 9) step excavator is hung out by crane after cutting the earth to designed elevation, remove punching block
And hung out by electric single-beam crane segmentation, then it is poured shaft bottom bed course.
2. a kind of whirling well according to claim 1 hangs upside down the construction method of retaining wall deep foundation pit support, it is characterized in that: described
It is located on the inside of the two root posts of electric single-beam crane at the top of first layer breast wall concrete and encloses circular orbit equipped with one, is filled on circular orbit
There is the casting device moved along circular orbit, casting device includes feed hopper, and one piece is welded on feed hopper across circular orbit
The support plate of top, support plate bottom are welded with a root post, and column bottom is equipped with the guiding rolled along circular orbit excircle
A to be taken turns, a horizontal support rod is welded among column, support boom end is equipped with the directive wheel B rolled along circular orbit top surface,
Feeding funnel bottom part is welded with a feed tube, and the bracket that oriented whirling well inner wall extends, bracket end are welded on guide drum outer wall
Equipped with the directive wheel C rolled along whirling well inner wall, feed tube bottom end outer wall is symmetrically arranged with two lifting lugs, and two lifting lugs pass through steel wire
Rope is lifted with one piece of stock guide.
The 7) 3. a kind of whirling well according to claim 1 hangs upside down the construction method of retaining wall deep foundation pit support, it is characterized in that:
A plash is dug again in bottom surface when step is cut the earth to design height, and plash is placed with a suction pump for the water in plash outside
It is discharged to outside whirling well.
4. a kind of whirling well according to claim 1 hangs upside down the construction method of retaining wall deep foundation pit support, it is characterized in that: production
Built-in fitting is set at one wherein when steel mesh, after weld several U after the completion of concrete curing from top to bottom at built-in fitting
Shape reinforcing bar is as vertical ladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420916.7A CN109403354B (en) | 2018-11-27 | 2018-11-27 | Construction method for deep foundation pit support of inverted retaining wall of cyclone well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420916.7A CN109403354B (en) | 2018-11-27 | 2018-11-27 | Construction method for deep foundation pit support of inverted retaining wall of cyclone well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109403354A true CN109403354A (en) | 2019-03-01 |
| CN109403354B CN109403354B (en) | 2021-02-09 |
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| CN201811420916.7A Active CN109403354B (en) | 2018-11-27 | 2018-11-27 | Construction method for deep foundation pit support of inverted retaining wall of cyclone well |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110453689A (en) * | 2019-09-03 | 2019-11-15 | 中国建筑一局(集团)有限公司 | A kind of physa hole inwall template construction system and construction method |
| CN110552540A (en) * | 2019-08-08 | 2019-12-10 | 上海二十冶建设有限公司 | construction method of inverted retaining wall supporting structure of cyclone tank adjacent to existing building |
| CN110836030A (en) * | 2019-11-22 | 2020-02-25 | 上海宝冶集团有限公司 | Clockwise and anticlockwise combined cyclone well construction method suitable for complex geological conditions |
| CN112482538A (en) * | 2020-12-01 | 2021-03-12 | 姜振波 | Pouring process applying steel supporting structure |
| CN113289770A (en) * | 2021-04-30 | 2021-08-24 | 江西省全鑫科技有限公司 | Desk type high-speed refrigerated centrifuge based on alternating current variable frequency motor drive and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552540A (en) * | 2019-08-08 | 2019-12-10 | 上海二十冶建设有限公司 | construction method of inverted retaining wall supporting structure of cyclone tank adjacent to existing building |
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| CN112482538A (en) * | 2020-12-01 | 2021-03-12 | 姜振波 | Pouring process applying steel supporting structure |
| CN113289770A (en) * | 2021-04-30 | 2021-08-24 | 江西省全鑫科技有限公司 | Desk type high-speed refrigerated centrifuge based on alternating current variable frequency motor drive and method thereof |
| CN113289770B (en) * | 2021-04-30 | 2022-06-28 | 江西省全鑫科技有限公司 | Desk type high-speed refrigerated centrifuge based on alternating current variable frequency motor drive and method thereof |
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| Publication number | Publication date |
|---|---|
| CN109403354B (en) | 2021-02-09 |
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