CN106978814A - A kind of Fabricated Structure for Support of Excavation - Google Patents
A kind of Fabricated Structure for Support of Excavation Download PDFInfo
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- CN106978814A CN106978814A CN201710322314.7A CN201710322314A CN106978814A CN 106978814 A CN106978814 A CN 106978814A CN 201710322314 A CN201710322314 A CN 201710322314A CN 106978814 A CN106978814 A CN 106978814A
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- prefabricated
- reinforced concrete
- excavation
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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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The present invention relates to a kind of Fabricated Structure for Support of Excavation, formed by the stake of prefabricated steel reinforced concrete and prefabricated box component assembly, it is characterized in that, each prefabricated component is assembled by transverse joint and vertical joint, pass through screw bolt reinforcing after assembly, antiseepage grouting hole is reserved to prefabricated components joint after assembling and carries out compaction grouting, simultaneously, by carrying out wall bottom compaction grouting to reserving antiseepage grouting hole in wall come the contact gap full of wall bottom, so as to be formed while having the overall foundation pit supporting construction of overall structure rigidity and anti-permeability performance.
Description
Technical field
The present invention relates to Base hole supporting technology field, a kind of Fabricated Structure for Support of Excavation is related in particular to.
Background technology
Pattern foundation pit supporting structure is the safety for main structure construction under protecting field and foundation ditch surrounding enviroment, and what foundation ditch was used is interim
Property supporting and retaining system, reinforcing, protection and the measure of Groundwater Control.In many construction fields, such as, it is necessary to first in open cut subway tunnel
Sap excavating is first carried out, excavation pit is carried out after temporary supporting, then structure construction is carried out to bottom of foundation ditch, construction terminates
Afterwards, it is necessary to be removed to provisional retaining structure.In the case of some special constructions, such as in pipe first-aid, the duration is tight
, task is heavy, and construction site is limited, and large-scale engineering machinery is difficult to evolutionary operation, exist temporary traffic, periphery pipeline and
The environmental disturbances factor such as bar line, at the same time, pipeline foundation ditch stress easily change, and bring the threat of working security.
At present, conventional foundation pit supporting method is lowering of watertable first, and side slope carries out supporting.Wherein, side slope branch
Shield is to ensure that the key technology of safe construction, mainly has slope excavation technology, shaped steel support technology, diaphragm wall support technology, mixed
Solidifying soil bored concrete pile support technology, design of anchored bulkhead, anchor pole (rope) support technology etc., and these pattern foundation pit supporting structure forms are deposited at present
In many weak points.
Diaphram wall is under complex geological condition, and diaphram wall of such as being constructed in sandy soil stratum is often relatively difficult to resolve
Certainly concrete pouring quality problem caused by the slurry trench stability problem and landslip of the sides of the trench in continuous wall trench underground work progress, from
And surface dew muscle and the wall body mass defect such as hole, wall and joint localized seepage, the damage of wall steel bar basket structure are produced, influence
The security and waterproof effect of continuous underground wall structure.Also, continuous wall trench underground and cell wall Bracing Process use mud,
Need to discharge in mud after casting concrete, producing substantial amounts of waste mud needs processing, not only cause serious environmental pollution, and also
The increase of cost can be caused.Meanwhile, the construction property of diaphram wall underwater casting determines that job site is difficult to ensure that wall
Construction quality, this is also the mass defect that cast-in-place continuous underground wall structure can not be improved or made up.The cost of diaphram wall
Difficult, one of the drawbacks of this is also it is removed after the completion of height, structure.
Slope excavation technology, design of anchored bulkhead and campshed support technology on underground water easily by gushing or precipitation
Influence, causes the domatic infiltration because by flowing water of foundation ditch surrounding and washes away and soil is loosely unstable, and serious possibility triggers ground
Face settles or deformed, and then a series of potential safety hazard occurs, influences the quality of engineering construction.Meanwhile, backfill the earthwork after building up
It is larger.
Gap easily causes soil erosion, particularly high water level bury matter area between the stake of cast-in-place concrete pile support technology.
Waterproof, seepage control poor performance, removes difficult.
Above-mentioned several Base hole supporting technologies, in the presence of one or even multinomial defect, for example, cost is high, install difficult, the duration
Long, waterproof is poor, and antiseepage is poor, removes difficult, it is impossible to recycle.Therefore, engineering circles need badly searching one kind can substitute and overcome with
The new foundation pit supporting construction of upper number of drawbacks, but at present this industry predicament not yet solved well.
The content of the invention
The technical problems to be solved by the invention are, overcome in existing Base hole supporting technology have that cost is high, it is difficult to install,
Long in time limit, waterproof is poor, antiseepage is poor, dismounting is difficult, the problem of can not recycle, while overcoming the overall integral rigidity of prefabricated member
With non-deformability it is poor the problem of can Fabricated Structure for Support of Excavation at the construction field (site) there is provided one kind.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
A kind of Fabricated Structure for Support of Excavation, is formed by the stake of prefabricated steel reinforced concrete and prefabricated box component assembly, it is characterised in that
Each prefabricated component is assembled by transverse joint and vertical joint, and by screw bolt reinforcing after assembly, prefabricated components are connect after assembling
Antiseepage grouting hole is reserved at head and carries out compaction grouting, meanwhile, by carrying out the close note of wall base pressure to reserving antiseepage grouting hole in wall
Starch to be full of the contact gap at wall bottom, so as to be formed while having the overall pattern foundation pit supporting structure knot of overall structure rigidity and anti-permeability performance
Structure, wherein,
Described prefabricated box-type member includes at least one standard component, and standard component is the modularization dimensioning that can splice
It is very little, stagger in the horizontal and vertical joint of standard film and be provided with trapezoidal tenon 11 and trapezoid tongue groove 12；
The prefabricated steel reinforced concrete stake includes-front portion 41, rear portion 42 and pile crown 43, and anterior both sides, which are staggered, is provided with trapezoidal tenon
First 412 and trapezoid tongue groove 413, the tenon and the mutual cooperation of tongue-and-groove size of prefabricated steel reinforced concrete stake and prefabricated box-type member；At rear portion 42
Close anterior 41 position be provided with Kato 421, after supporting construction is assembled into, Kato 421 to support be located at adjacent position
Prefabricated box-type member.
Preferably, described standard component includes three kinds of thickness identical, and the section of the first is square, second of section
Face is the half of the first standard component, and the third section is twice of the first standard component.The assembled pattern foundation pit supporting structure knot
Structure installation form is divided into three kinds, and the respectively vertical joint fissure of displacement is installed, the vertical joint fissure of displacement peaces of transverse joint fissure of displacement An Zhuan, Transverse
Dress.Described standard component and the reserved antiseepage grouting hole of prefabricated steel reinforced concrete stake, its section form is semicircle, when adjacent members are assembled
After the completion of, two antiseepage grouting holes are combined as a circular channel.The outside of described standard component and the stake of prefabricated steel reinforced concrete is steel plate,
Inside is filled with concrete, and carries out thickening reinforcement to steel plate at each component connector.
Compared with the prior art, beneficial effects of the present invention are embodied in：
1. site operation operability of the present invention is good；
2. component quality of connection is reliable；
3. waterproof, seepage control performance is good；
4. assembling work efficiency high, installs quick, dismounting is simple；
5. the effectively save engineering material of prefabricated box-type member energy, is greatly reduced prefabricated components weight, while not influenceing component
Rigidity, is more easy to ensure the globality and construction quality of structure, it is ensured that non-deformability compared to traditional foundation pit supporting construction, reduces base
Support cost is cheated, engineering construction works well.
Brief description of the drawings
Fig. 1 is Fabricated Structure for Support of Excavation standard film A schematic diagrames of the present invention；
Fig. 2 is Fabricated Structure for Support of Excavation standard film A side views of the present invention；
Fig. 3 is Fabricated Structure for Support of Excavation standard film A profiles of the present invention；
Fig. 4 is Fabricated Structure for Support of Excavation standard film B schematic diagrames of the present invention；
Fig. 5 is Fabricated Structure for Support of Excavation standard film C schematic diagrames of the present invention；
Fig. 6 is the prefabricated steel reinforced concrete stake schematic diagram of Fabricated Structure for Support of Excavation of the present invention；
Fig. 7 is the prefabricated steel reinforced concrete stake profile of Fabricated Structure for Support of Excavation of the present invention；
Fig. 8 is the prefabricated steel reinforced concrete stake front view of Fabricated Structure for Support of Excavation of the present invention；
Fig. 9 is the prefabricated steel reinforced concrete stake side view of Fabricated Structure for Support of Excavation of the present invention；
Figure 10 (a) (b) (c) is respectively three kinds of bolt schematic diagrames that Fabricated Structure for Support of Excavation of the present invention is used；
Figure 11 is that the horizontal fissure of displacement of Fabricated Structure for Support of Excavation of the present invention installs schematic three dimensional views；
Figure 12 is the horizontal fissure of displacement scheme of installation of Fabricated Structure for Support of Excavation of the present invention；
Figure 13 is that the horizontal fissure of displacement of Fabricated Structure for Support of Excavation of the present invention installs profile；
Figure 14 is the longitudinal fissure of displacement scheme of installation of Fabricated Structure for Support of Excavation of the present invention；
Figure 15 is Fabricated Structure for Support of Excavation transverse and longitudinal fissure of displacement scheme of installation of the present invention；
Include in Fig. 1~11：
1- standard films A
The trapezoidal tenons of 11-, 12- trapezoid tongue grooves, 13- antiseepage groutings hole, 14- reserve stay bolt hole, 15- bolt anti-rotation tenons
Groove, 16 reserved lag bolt hole, 17- steel plates, 18- concrete
2- standard films B
The trapezoidal tenons of 21-, 22- trapezoid tongue grooves, 23- antiseepage groutings hole, 24- bolts hole, 25- bolt anti-rotation tongue-and-grooves
3- standard films C
The trapezoidal tenons of 31-, 32- trapezoid tongue grooves, 33- antiseepage groutings hole, 34- bolts hole, 35- bolt anti-rotation tongue-and-grooves
The prefabricated steel reinforced concrete stakes of 4-
The prefabricated steel reinforced concrete stake front portions of 41-, the prefabricated steel reinforced concrete stake rear portions of 42-, the prefabricated steel reinforced concrete pile crowns of 43-, 44- steel plates, 45- coagulations
Soil, the trapezoidal tenons of 411-, 412- trapezoid tongue grooves, 413- antiseepage groutings hole, 414- ribbed stiffeners, the reserved deep bolts hole of 415-, 416-
Reserved shallow bolt hole, 421 Katos, 422- ribbed stiffeners
The straight bolt of 5- length
51- hexagonal (hexagon)nuts, 52- bolt anti-rotations tenon, 53- hex nuts, 54- leading screws
The straight bolts of 6-
61- hexagonal (hexagon)nuts, 62- leading screws
7- seals bolt
71- round ends nut, 72- flat recesses, 73- leading screws
The 8- soil bodys
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
In conjunction with above-mentioned each accompanying drawing example, the present invention is expanded on further.
As shown in Fig. 1~Fig. 5, on the one hand, in view of the assembled simplification of transport, each soil layer cutting depth, it is desirable to adopt
With the less standard film of size；On the other hand, for the manufacturing cost for the piece unit area that debases the standard, reduction easily causes leak
Piece-ups, joint total length and Number of Bolts etc. weakness, and shorten duration etc. for the reduction of assembled number of times, it is desirable to using compared with
Big standard film.In view of Practical Project, in more Excavation Process, soil layer excavation situation etc., it is proposed that three kinds of marks
The design of quasi- piece, respectively prefabricated standard film A1 sizes be 1000mm × 1000mm × 500mm, standard film B2 sizes be 1000mm ×
500mm × 500mm, standard film C3 sizes are 1000mm × 2000mm × 500mm.Present case proposes three kinds of standard film designs, but
These three are not limited solely to, can be determined according to Practical Project and job site actual conditions with reference to lifting machine etc. suitable
The standard chip size of projects.
Simultaneously, it is contemplated that every kind of standard film is convenient to be installed, and all standard films are made as into box standard film, do not influenceing every
In the case of kind of standard film rigidity, non-deformability and joint stiffness, internal grooving is to mitigate weight.
As shown in Figure 2, it is contemplated that standard film is assembled and actual soil layer excavates situation, in the horizontal and vertical joints of standard film A1
Place sets trapezoidal tenon 11 and trapezoid tongue groove 12.The depth of trapezoid tongue groove 12 is 50mm, and width is 220mm, the trapezoidal top of tenon 11
Width is 160mm.The either supporting after the completion of supporting, or excavation when excavating, is both needed to joint smooth clean.
In view of standard film in order to prevent soil particle from entering so as to influence assembly during assembly, so setting standard film
Top be trapezoidal tenon 11, bottom be trapezoid tongue groove 12.It is trapezoidal tenon 11, right side that the present embodiment, which is set on the left of standard film A1,
For trapezoid tongue groove 12.Standard film B2 and standard film C3 is identical in joint location design with standard film A1.It is such to set, can not only
Joint is smooth clean during enough guarantees are assembled, is different sizes while meeting the assembled requirement of different dimensional standard pieces
Standard film assembly provide method.
As shown in figure 3, it is that outside is steel plate 17 that standard film A1, which makes form, inside is filled with steel at concrete 18, surface layer
The thickness of plate 17 is 2mm, it is contemplated that joint stress is larger, and it is 5mm to set the thickness of joint steel plate 17.Set simultaneously and reserve long spiral shell
Keyhole 14 and reserved lag bolt hole 16, two kinds of diameters of bolt hole are 30mm, it is contemplated that install integral rigidity and waterproof, seepage control
Performance, while for the ease of installing, reserving stay bolt hole 14 and the reserved set location of lag bolt hole 16 in trapezoidal tenon 11 and ladder
At shape tongue-and-groove 12.Bolt is arranged in pairs, and is effective against the Moment that standard film is subject to.Such setting, which can be met, to be applied
In work way and after the completion of load will not damage its security performance and endurance quality, meanwhile, assembly can be carried out with infallible,
And the shape after assembly can be kept.
In order to ensure foundation ditch assembled supporting construction waterproof, seepage control, standard film A1 components are respectively provided with antiseepage grouting hole 13,
The section form of antiseepage grouting hole 13 is semicircle, and after the completion of adjacent members are assembled, two antiseepage grouting holes 13 are combined as one
Circular channel, can be by being pressed into antiseepage mortar, or the setting before assembly after the completion of whole assembled supporting construction to it
Rubber fastening band, so as to reach the waterproof, seepage control of whole metope.So, when by usual load and earthquake effect, even if
Generate certain joint distortion amount, it is also ensured that required sealing performance.Meanwhile, the supporting soil pressure in by work progress
During the effect of the temporary load(ing)s such as power, with infallible sealing performance.
As shown in figs. 6-9, it is 500mm that prefabricated steel reinforced concrete stake 4 is longitudinally wide, and transverse width is 1000mm, is laterally divided into pre-
Steel reinforced concrete stake front portion 41 processed and prefabricated steel reinforced concrete stake rear portion 42, can be made in the length of depth direction according to excavation pit, this
4 length of the prefabricated steel reinforced concrete stake of embodiment are 8000mm.Fabricated Structure for Support of Excavation of the present invention is being used, before excavation of foundation pit, is being needed
In the soil layer that the press-in of prefabricated steel reinforced concrete stake 4 is pre-set, prefabricated steel reinforced concrete stake front portion 41 is provided with trapezoidal tenon 411 and trapezoidal tenon
Groove 412, and pre-buried stay bolt hole 415 and pre-buried lag bolt hole 416 are provided with, two kinds of bolts hole are in trapezoidal tenon 411 and ladder
The pre-buried depth of shape tongue-and-groove 412 is different, and pre-buried depth is to set depth to be 85mm at 135mm, tongue-and-groove at tenon, while being provided with anti-
Ooze injected hole 413.Meanwhile, in order to which standard sheet element installs quick and installation site accurately, on prefabricated steel reinforced concrete stake rear portion 42
There is provided Kato 421, the width of Kato 421 is 100mm.
Simultaneously, it is contemplated that under soil lateral pressure, supporting construction stress is more reasonable, the trapezoidal tenon of prefabricated steel reinforced concrete stake 4
411st, trapezoid tongue groove 412, antiseepage grouting hole 413 are arranged on prefabricated steel reinforced concrete stake front portion 41, and then the structure in foundation ditch are applied simultaneously
Work one smooth supporting plane of formation.
As shown in fig. 7, the prefabricated outside of steel reinforced concrete stake 4 is steel plate 44, inside is filled with concrete 45, and joint steel plate thickness is
5mm, in addition to anterior 41 joint of prefabricated steel reinforced concrete stake, other position steel plates set thickness to be 2mm.Meanwhile, to improve stake integral rigidity
And non-deformability, ribbed stiffener 414 is set inside prefabricated steel reinforced concrete stake 4.Whole prefabricated steel reinforced concrete stake 4 is solid in length direction section
It is fixed, prefabricated steel reinforced concrete pile crown 43 is set, and the prefabricated dimensions length of steel reinforced concrete pile crown 43 is 1000mm, so that it is smooth to meet prefabricated steel reinforced concrete stake 4
Squeeze into the requirement of the soil body 8.
As shown in Figure 10, apparatus of the present invention provide 3 kinds of bolt designs, respectively grow straight bolt 5, straight bolt 6, sealing spiral shell
Bolt 7.
The assembly that long straight bolt 5 is used between standard sheet element, its dimensions length is 415mm, sets the He of hex nut 51
Hexagonal (hexagon)nut 52, is highly 30mm, the diameter of bolt is 30mm；The length dimension of leading screw 54 is 100mm；Bolt is set at nut 51
Anti-rotation tenon 52, its dimensional thickness is 10mm, and length is 40mm, so as to be conducive to preventing from growing straight 5 turns of bolt in installation process
It is dynamic to skid.Bolt anti-rotation tenon 52 is engaged corresponding with bolt anti-rotation tongue-and-groove 14 in standard film A1.
The assembly that straight bolt 6 is used between standard film and prefabricated steel reinforced concrete stake 4, its dimensions length is 265mm, sets hexagonal spiral shell
Cap 61, is highly 30mm, the diameter of bolt is 30mm；The length of leading screw 62 is 100mm.
Sealing bolt 7 is used for prefabricated steel reinforced concrete stake 4, and its dimensions length is 64mm, and the dimensions length of leading screw 72 is 50, and design is used
Round end nut 71, and flat recess 72 is set on nut, groove depth is 5.8mm, and width is 3mm, before piling, installed in pre-
In steel reinforced concrete stake 4 processed, prevent the soil body 8 from entering, soil particle can be avoided to pollute pre-buried stay bolt hole 415 and pre-buried lag bolt hole 416.
Such as Figure 11~Figure 15, shown, present embodiments provides three kinds of supporting construction assembly forms, is respectively that the horizontal fissure of displacement is spelled
Dress, longitudinal staggered joint erection, transverse and longitudinal staggered joint erection.Staggered joint erection is conducive to improving foundation pit supporting construction shearing resistance and resistance to deformation energy
Power, improves security, is conducive to structurally waterproof antiseepage, improves structure integral rigidity.
Clear distance is 4m between every adjacent studs shown in embodiment, but Practical Project is not limited to present case, can be according to soil
The load situations such as the type of body 8, hydraulic character, cutting depth, specific stress come determine construction style and prefabricated steel reinforced concrete stake 4 arrange number
Amount and position.
Using the present embodiment detachable foundation ditch assembled supporting construction when, first, according to cutting depth, the property of the soil body 8,
Force-bearing situation etc. determines the dimensions length of prefabricated steel reinforced concrete stake 4, is manufactured through factory, is transported to job site.Standard film can be existing
Field is manufactured in pre-fabricated factory.At the construction field (site), install first and screw in pre-buried stay bolt hole 415 on sealing bolt 7 to pile body
At pre-buried lag bolt hole 416.Then, specified location and depth are squeezed into prefabricated steel reinforced concrete stake 4 using piling machine.Completion was driven piles
Cheng Hou, carries out excavation of foundation pit.It is usually stage excavation that soil layer, which is excavated, and when excavation reaches one layer of standard film depth, cleaning pile body is pre-
Stay bolt hole 415 and the pre-buried joint of lag bolt hole 416 are buried, is made after its holding surface neat and tidy, sealing bolt 7 is screwed out.With
Afterwards, standard film A1 is installed, its trapezoidal tenon 11 is aligned at the trapezoid tongue groove 412 of prefabricated steel reinforced concrete stake 4, is inserted perpendicularly into, enters immediately
Row bolt connection, takes four straight bolts 6, in four prepared screw-bolt holes 412 for screwing in standard film A1 and prefabricated steel reinforced concrete stake 4, i.e., solid
Standard film A1 is determined to prefabricated steel reinforced concrete stake 4, and this standard piece is installed.
After the completion of lastblock standard film, adjacent modular piece is installed.Equally, the trapezoidal tenon 11 of standard film is made to be directed at adjacent
Standard film trapezoid tongue groove 12, is inserted perpendicularly into, and bolt connection is carried out immediately, takes four long straight bolt 5, first inserts long straight bolt 5
Enter bolt hole 14, bolt anti-rotation tenon 52 is directed at insertion bolt anti-rotation tongue-and-groove 15, hex nut 53 is subsequently mounted.And every layer most
The standard film installed afterwards, the depth for a standard film that soil layer must be backbreak downwards, below standard film position to be installed, will wait to pacify
The tongue-and-groove and tenon alignment top that fill standard film have installed the tenon and tongue-and-groove of standard film, insert from bottom to top, spiral shell is installed immediately
Bolt, the four long straight bolt 5 of last standard film needs of first layer, same operation, for bolt connection adjacent modular piece,
Four straight bolts 6 are needed also exist for, for the bolt connection between standard film and prefabricated steel reinforced concrete stake 4, after bolt installation, first
Layer standard film is installed.
Carry out immediately after the completion of next layer of soil layer excavation, excavation, same operation, the standard film for carrying out next layer is installed,
In the standard film after the second layer is installed, on each standard film top, it is necessary to use four long straight bolt 5 and last layer standard
Piece carries out bolt connection.What subsequent installation was used is identical operation, until being attached to excavation pit bottom.
After whole supporting construction installation, compaction grouting is carried out at the antiseepage grouting hole 13 for finally installing standard film.
With compaction grouting machine in the standard film bottom finally installed, alignment antiseepage grouting hole 13 is pressed into waterproof, seepage control better performances thereto
Flexible slurries, make slurries that from bottom to top the antiseepage grouting hole 13 of standard film and pile body formation is filled and be filled.It is to be seen
Stop slip casting when overflowing slurries to antiseepage grouting hole 13 passage of top layer standard film, and reach anti-seepage effect.
When the detachable foundation ditch assembled supporting construction of the present embodiment is removed, it then follows first remove one layer of standard film knot
Structure, one layer of soil of backfill, is from bottom to top removed and is backfilled, can so ensure foundation pit supporting construction and the stabilization of the soil body 8 afterwards, and then
Ensure the security of work progress.
The invention is not limited to above-mentioned embodiment, and those skilled in the art are smart without prejudice to the present invention
Equivalent variations or replacement can be also made on the premise of god, these equivalent deformations or replacement are all contained in the application claim institute
In the range of restriction.
Claims (5)
1. a kind of Fabricated Structure for Support of Excavation, is formed, it is characterised in that each by the stake of prefabricated steel reinforced concrete and prefabricated box component assembly
Individual prefabricated components are assembled by transverse joint and vertical joint, by screw bolt reinforcing after assembly, to prefabricated components joint after assembling
The reserved antiseepage grouting hole in place carries out compaction grouting, meanwhile, by carrying out wall bottom compaction grouting to reserving antiseepage grouting hole in wall
To be full of the contact gap at wall bottom, so as to be formed while having the overall pattern foundation pit supporting structure knot of overall structure rigidity and anti-permeability performance
Structure, wherein,
Described prefabricated box-type member includes at least one standard component, and standard component is the modularization physical dimension that can splice,
The horizontal and vertical joint of standard film, which is staggered, is provided with trapezoidal tenon (11) and trapezoid tongue groove (12)；
The prefabricated steel reinforced concrete stake includes-anterior (41), rear portion (42) and pile crown (43), anterior both sides stagger be provided with it is trapezoidal
The tenon of tenon (412) and trapezoid tongue groove (413), prefabricated steel reinforced concrete stake and prefabricated box-type member cooperates with tongue-and-groove size；
Close anterior (41) position at rear portion (42) is provided with Kato (421), and after supporting construction is assembled into, Kato (421) is to prop up
Prefabricated box-type member of the support positioned at adjacent position.
2. supporting construction according to claim 1, it is characterised in that described standard component includes three kinds of thickness identical,
The section of the first is square, and second of section is the half of the first standard component, and the third section is the first mark
Twice of quasi- part.
3. supporting construction according to claim 2, it is characterised in that the Fabricated Structure for Support of Excavation installation form point
For three kinds, the respectively vertical joint fissure of displacement is installed, the vertical joint fissure of displacement of transverse joint fissure of displacement An Zhuan, Transverse is installed.
4. the supporting construction according to claims 1 to 3 any one, it is characterised in that described standard component and pre-manufactured steel
The reserved antiseepage grouting hole of mixed stake, its section form is semicircle, after the completion of adjacent members are assembled, two antiseepage grouting hole groups
It is combined into a circular channel.
5. according to the supporting construction according to Claims 1-4 any one, it is characterised in that described standard component and pre-
The outside of steel reinforced concrete stake processed is steel plate, and inside is filled with concrete, and carries out thickening reinforcement to steel plate at each component connector.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642096A (en) * | 2017-08-22 | 2018-01-30 | 天津大学 | A kind of Fabricated Structure for Support of Excavation using slip casting bolt |
| CN108842786A (en) * | 2018-07-19 | 2018-11-20 | 天津大学 | A kind of detachable lightweight assembled pattern foundation pit supporting structure |
| CN110878555A (en) * | 2019-11-22 | 2020-03-13 | 中国市政工程西北设计研究院有限公司 | Large-span underground space deep foundation pit supporting system and construction method |
| WO2021196657A1 (en) * | 2020-04-03 | 2021-10-07 | 山东大学 | Novel fabricated anchorage structure serving as both dewatering well and support, and construction method |
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| CN101914925A (en) * | 2008-11-19 | 2010-12-15 | 兰州南特数码科技股份有限公司 | Basement by using optimized composite prefabricated arch wall as external wall |
| KR101171040B1 (en) * | 2011-10-10 | 2012-08-06 | 전혜관 | Pre-fabricated earth retaining wall structure constructing method using prestressed tendon |
| CN205348155U (en) * | 2015-12-01 | 2016-06-29 | 福建省闽工新型建材有限公司 | Precast concrete corner pile |
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| CN107642096A (en) * | 2017-08-22 | 2018-01-30 | 天津大学 | A kind of Fabricated Structure for Support of Excavation using slip casting bolt |
| CN108842786A (en) * | 2018-07-19 | 2018-11-20 | 天津大学 | A kind of detachable lightweight assembled pattern foundation pit supporting structure |
| CN110878555A (en) * | 2019-11-22 | 2020-03-13 | 中国市政工程西北设计研究院有限公司 | Large-span underground space deep foundation pit supporting system and construction method |
| WO2021196657A1 (en) * | 2020-04-03 | 2021-10-07 | 山东大学 | Novel fabricated anchorage structure serving as both dewatering well and support, and construction method |
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