CN109944252A - A kind of combination lattice steel sheet-pile wall and foundation ditch construction method - Google Patents
A kind of combination lattice steel sheet-pile wall and foundation ditch construction method Download PDFInfo
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- CN109944252A CN109944252A CN201910211327.6A CN201910211327A CN109944252A CN 109944252 A CN109944252 A CN 109944252A CN 201910211327 A CN201910211327 A CN 201910211327A CN 109944252 A CN109944252 A CN 109944252A
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- steel sheet
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- sheet pile
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Abstract
The invention discloses a kind of combination lattice steel sheet-pile walls, supporting member is provided at the web back side of each second U-shaped steel sheet pile, so that the thickness of wall obviously increases, the rigidity of steel sheet-pile wall is effectively increased, reduces the generated deformation under the pressure of the earthwork after construction;Foundation ditch construction method is provided simultaneously, by the way of section construction, it is more convenient flexible, and supporting member adds, the surface subsidence at the steel sheet-pile wall back side is effectively reduced while reducing the steel sheet-pile wall deformation of foundation pit two sides, to enable the spacing between each inner support to increase, reduce construction procedure, the invention is used for building enclosure technical field.
Description
Technical field
The present invention relates to building enclosure technical fields, more particularly to a kind of combination lattice steel sheet-pile wall and foundation pit construction
Method.
Background technique
Steel sheet pile supporting is exactly that steel sheet pile piling machine is pressed into ground, so that it is interconnected into steel sheet-pile wall, for keeping off
Soil and water blocking.The sectional form of common steel sheet pile has U-shaped, Z-shaped and straight web-type.Steel sheet pile is suitable for Soft Ground and underground
The higher deep foundation pit support of water level, in addition inner support or draw anchor outside, supporting depth is up to 15m, and it is with easy construction, sealing
The advantages that performance is good, reusable.
However the thickness of steel sheet-pile wall in the prior art is small, rigidity is small, deformation is big, is driven into the steel sheet-pile wall of ground
Surface subsidence is larger, and the vertical spacing of its each inner support is small, is affected to practice of construction.
Summary of the invention
The purpose of the present invention is to provide a kind of rigidity for improving steel sheet-pile wall, the surface subsidence at the reduction steel sheet-pile wall back side
Combination lattice steel sheet-pile wall and foundation ditch construction method.
The technical solution used in the present invention is:
A kind of combination lattice steel sheet-pile wall, the first U-shaped steel sheet pile and the second U-shaped steel plate including several alternately connections
Stake, the first U-shaped steel sheet pile and the second U-shaped steel sheet pile include a web, two are separately fixed at the flange plate at web both ends,
The web back side of each second U-shaped steel sheet pile is provided at least one supporting member.
It is further used as the improvement of technical solution of the present invention, and the supporting member is T-type component, and the T-type component includes
One web and two be vertically fixed on web the same end two sides flange plate, the web of the T-type component and the second U-shaped steel sheet pile
Web is mutually perpendicular to, the web back side of the other end of the web of the T-type component and the second U-shaped steel sheet pile phase in a manner of Tenon
Even.
It is further used as the improvement of technical solution of the present invention, the web back side of each second U-shaped steel sheet pile be fixed with to
A few tenon is convex, and one and the convex mortise engaged of tenon, the bottom belt of each mortise are fixed in the web end of each T-type component
There is opening.
It is further used as the improvement of technical solution of the present invention, and a tenon is fixed at the web back side of each second U-shaped steel sheet pile
Convex, the tenon projection is in the middle part at the web back side.
It is further used as the improvement of technical solution of the present invention, and the convex cross section of the tenon is ellipse, the cross of the mortise
Section is the oval ring of non-close, and the opening width of the oval ring is less than the long axis length of ellipse.
It is further used as the improvement of technical solution of the present invention, the two sides of the first U-shaped steel sheet pile and the second U-shaped steel sheet pile
The end of flange plate is respectively equipped with fore shaft, and the outward opening of each fore shaft is bent towards web direction.
It is further used as the improvement of technical solution of the present invention, the opening of the first U-shaped steel sheet pile and the second U-shaped steel sheet pile
Relatively, the fore shaft of the two sides flange plate of each first U-shaped steel sheet pile is interlocked with two second U-shaped steel sheet piles respectively.
A kind of foundation ditch construction method combining lattice steel sheet-pile wall, comprising the following steps: S1: barrier is removed in levelling of the land
Hinder object;S2: surveying setting-out is measured according to drawing, and unwrapping wire determines the injection position of steel sheet-pile wall;S3: steel sheet pile pile sinking,
Segmentation sets up leading truck, then successively the first U-shaped steel of injection sheet pile, the second U-shaped steel sheet pile, after completing one section, removes leading truck simultaneously
Plug T-type component;S4: the process of step S3 is repeated to the injection of completion steel sheet-pile wall;S5: earth excavation to first of inner support
The position of bottom contact, installs first of inner support;S6: repeating step S5, installs second inner support and following Dao Neizhi
Support forms foundation pit to excavating to substrate.
It is further used as the improvement of technical solution of the present invention, in the step S3 and S4, when plugging the T-type component, respectively
The convex corresponding lock fitting of tenon on mortise and the 2nd U steel sheet pile on the T-type component.
It is further used as the improvement of technical solution of the present invention, in the step S3, the first U-shaped steel plate of first progress injection
The pile sinking position of stake is accurately positioned using theodolite.
It is further used as the improvement of technical solution of the present invention, in the step S5 and step S6, before installing each road inner support
First install one of fashioned iron purlin, the spacing phase between fashioned iron purlin described in ipsilateral each road respectively on the steel sheet-pile wall of two sides
Together.
Beneficial effects of the present invention: this combination lattice steel sheet-pile wall is arranged at the web back side of each second U-shaped steel sheet pile
Supporting member effectively increases the rigidity of steel sheet-pile wall so that the thickness of wall obviously increases, and reduces after construction in the earthwork
Generated deformation under pressure;Foundation ditch construction method is provided simultaneously, it is more convenient flexible by the way of section construction, and
Supporting member adds, and the steel sheet-pile wall of reduction foundation pit two sides effectively reduces steel sheet-pile wall back side ground while deformation is heavy
Drop, so that the spacing between each inner support be enable to increase, reduces construction procedure, is conducive to accelerate speed of application.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the combination diagram of the first U-shaped steel sheet pile of the embodiment of the present invention, the second U-shaped steel sheet pile and supporting member;
Fig. 2 is the pattern foundation pit supporting structure floor plan of the embodiment of the present invention;
Fig. 3 is the pattern foundation pit supporting structure sectional view of the embodiment of the present invention.
Specific embodiment
Referring to figs. 1 to Fig. 3, the present invention is combination lattice steel sheet-pile wall, the first U-shaped steel plate including several alternately connections
Stake 1 and the second U-shaped steel sheet pile 2, the first U-shaped steel sheet pile 1 and the second U-shaped steel sheet pile 2 are separately fixed at abdomen including a web, two
The web back side of the flange plate of board ends, each second U-shaped steel sheet pile 2 is provided at least one supporting member.
This combination lattice steel sheet-pile wall is provided with supporting member at the web back side of each second U-shaped steel sheet pile 2, so that
The thickness of wall obviously increases, and effectively increases the rigidity of steel sheet-pile wall, reduces generated under the pressure of the earthwork after constructing
Deformation;And supporting member adds, and not only reduces the steel sheet-pile wall deformation of the foundation pit two sides after construction, also effectively reduces steel plate
The surface subsidence at the piling wall back side reduces the subsequent branch in foundation pit is arranged so that the spacing between each inner support be enable to increase
The difficulty of support.
As a preferred embodiment of the present invention, supporting member is T-type component 3, and T-type component 3 includes that a web and two are hung down
It is directly fixed on the flange plate of web the same end two sides, the web of T-type component 3 and the web of the second U-shaped steel sheet pile 2 are mutually perpendicular to, T
The other end of the web of type component 3 is connected in a manner of Tenon with the web back side of the second U-shaped steel sheet pile 2.Choose T-type component 3
As support, the contact area of itself in work progress and underground soil is less, and the suction drag of formation is little, so be easy to plug;
And its flange plate for being located at outside plays certain barrier compaction to the soil for being located at steel sheet-pile wall back side, disperses back side mud
Soil is to 2 pressure applied of the first U-shaped steel sheet pile 1 and the second U-shaped steel sheet pile for constituting main body.
As a preferred embodiment of the present invention, it is convex to be fixed at least one tenon for the web back side of each second U-shaped steel sheet pile 2
21, a mortise 31 engaged with tenon convex 21 is fixed in the web end of each T-type component 3, and the bottom of each mortise 31 is with opening.Into
One step, a tenon convex 21 is fixed at the web back side of each second U-shaped steel sheet pile 2, and tenon convex 21 is located at the middle part at the web back side.Utilize tenon
Convex 21, T-type component 3 and the second U-shaped steel sheet pile 2 are carried out mortise-tenon joint by the structure of mortise 31, so that T-type component 3 squeezes into rear nothing
The problems such as need to considering positional shift, simplifies the step in work progress, while effectively securing T-type component 3 and the second U-shaped steel
Relative position between sheet pile 2, and ensure that the tightness degree of fastening.
As a preferred embodiment of the present invention, the cross section of tenon convex 21 is ellipse, and the cross section of mortise 31 is non-envelope
The oval ring closed, the opening width of oval ring are less than the long axis length of ellipse.By tenon, convex 21, mortise 31 is respectively designed to
Ellipticity and oval ring-type, the round and smooth no corner angle of the contact surface of the two, so that squeezing into T-type component 3 and the progress of the second U-shaped steel sheet pile 2
The process of lock can be more laborsaving smooth, while reducing the alignment function between the corner angle of polygon, facilitates construction efficiency
Raising.
As a preferred embodiment of the present invention, the two sides flange plate of the first U-shaped steel sheet pile 1 and the second U-shaped steel sheet pile 2
End is respectively equipped with fore shaft, and the outward opening of each fore shaft is bent towards web direction.Further, the first U-shaped steel sheet pile 1 and second
The opening of U-shaped steel sheet pile 2 is opposite, the fore shaft of the two sides flange plate of each first U-shaped steel sheet pile 1 respectively with two second U-shaped steel sheet piles 2
It is interlocked.
A kind of foundation ditch construction method combining lattice steel sheet-pile wall, comprising the following steps: S1: barrier is removed in levelling of the land
Hinder object, to guarantee construction machinery in the normal walking in place;S2: surveying setting-out is measured according to drawing, and unwrapping wire determines steel
The injection position of sheet pile wall;S3: steel sheet pile pile sinking, segmentation set up leading truck, then successively the first U-shaped steel of injection sheet pile 1, the 2nd U
Shaped steel plate pile 2 after completing one section, removes leading truck and plugs T-type component 3;S4: the process of step S3 is repeated to completing steel sheet pile
The injection of wall;S5: first of inner support 4 is installed in the position that earth excavation is contacted to first of 4 bottom of inner support;S6: it repeats to walk
Rapid S5 installs second inner support and following road inner support to excavating to substrate, forms foundation pit.Further, the step
In S3 and S4, when plugging T-type component 3, the corresponding lock patch of tenon convex 21 on the mortise 31 and the 2nd U steel sheet pile on each T-type component 3
It closes.
The foundation ditch construction method of this combination lattice steel sheet-pile wall, it is more convenient flexible by the way of section construction, and
Supporting member adds, and the steel sheet-pile wall of reduction foundation pit two sides effectively reduces steel sheet-pile wall back side ground while deformation is heavy
Drop, so that the spacing between each inner support be enable to increase, reduces construction procedure, is conducive to accelerate speed of application.
As a preferred embodiment of the present invention, in step S3, the first U-shaped steel sheet pile 1 squeezed into due to first is
The benchmark of subsequent piling, so the pile sinking position of the first U-shaped steel sheet pile 1 of first progress injection accurately determine using theodolite
Position;In conjunction with scene actual conditions, comprehensively consider using by root pile sinking, spelling group pile sinking, screen-type pile sinking, staged pile sinking or
Every the pile sinking process of the single steel sheet pile such as formula pile sinking.
It further, need to be according to the pile depth of steel sheet pile, strata condition, execution conditions, periphery before implementation steps 3
After the requirement of environment is comprehensively considered, then integral construction is used in vibrosinking, pile driving method by hammer and pile jacking in method
One or more selected.
As a preferred embodiment of the present invention, it in step S5 and step S6, installs before each road inner support first in two sides
One of fashioned iron purlin 5 is installed on steel sheet-pile wall respectively, the spacing between ipsilateral each road fashioned iron purlin 5 is identical.
Certainly, design of the invention creation is not limited to above embodiment, and those skilled in the art are not
Equivalent deformation or replacement can be also made under the premise of violating spirit of that invention, these equivalent variation or replacement are all contained in this Shen
It please be in claim limited range.
Claims (10)
1. a kind of combination lattice steel sheet-pile wall, it is characterised in that: the first U-shaped steel sheet pile and second including several alternately connections
U-shaped steel sheet pile, the first U-shaped steel sheet pile and the second U-shaped steel sheet pile include a web, two are separately fixed at web both ends
The web back side of flange plate, each second U-shaped steel sheet pile is provided at least one supporting member.
2. combination lattice steel sheet-pile wall according to claim 1, it is characterised in that: the supporting member is T-type component,
The T-type component includes a web and two are vertically fixed on the flange plate of web the same end two sides, the web of the T-type component with
The web of second U-shaped steel sheet pile is mutually perpendicular to, the web back of the other end of the web of the T-type component and the second U-shaped steel sheet pile
Face is connected in a manner of Tenon.
3. combination lattice steel sheet-pile wall according to claim 2, it is characterised in that: each second U-shaped steel sheet pile
The web back side is fixed with that at least one tenon is convex, and one and the convex mortise engaged of tenon are fixed in the web end of each T-type component, respectively
The bottom of the mortise is with opening.
4. combination lattice steel sheet-pile wall according to claim 3, it is characterised in that: the convex cross section of the tenon is ellipse
Shape, the cross section of the mortise are the oval ring of non-close, and the opening width of the oval ring is less than the long axis of ellipse
Length.
5. combination lattice steel sheet-pile wall according to claim 1, it is characterised in that: the first U-shaped steel sheet pile and
The end of the two sides flange plate of two U-shaped steel sheet piles is respectively equipped with fore shaft, and the outward opening of each fore shaft is bent towards web direction.
6. combination lattice steel sheet-pile wall according to claim 5, it is characterised in that: the first U-shaped steel sheet pile and
The opening of two U-shaped steel sheet piles is opposite, the fore shaft of the two sides flange plate of each first U-shaped steel sheet pile respectively with two second U-shaped steels
Sheet pile is interlocked.
7. a kind of foundation ditch construction method for combining lattice steel sheet-pile wall, which comprises the following steps:
S1: levelling of the land, removing obstacles object;
S2: surveying setting-out is measured according to drawing, and unwrapping wire determines the injection position of steel sheet-pile wall;
S3: steel sheet pile pile sinking, segmentation set up leading truck, then successively the first U-shaped steel of injection sheet pile, the second U-shaped steel sheet pile, complete one
Duan Hou removes leading truck and plugs T-type component;
S4: the process of step S3 is repeated to the injection of completion steel sheet-pile wall;
S5: first of inner support is installed in the position that earth excavation is contacted to first of inner support bottom;
S6: repeating step S5, installs second inner support and following road inner support to excavating to substrate, forms foundation pit.
8. the foundation ditch construction method of combination lattice steel sheet-pile wall according to claim 7, it is characterised in that: the step
In S3 and S4, when plugging the T-type component, the convex corresponding lock patch of tenon on the mortise and the 2nd U steel sheet pile on each T-type component
It closes.
9. the foundation ditch construction method of combination lattice steel sheet-pile wall according to claim 7, it is characterised in that: the step
In S3, the pile sinking position of the first U-shaped steel sheet pile of first progress injection is accurately positioned using theodolite.
10. the foundation ditch construction method of combination lattice steel sheet-pile wall according to claim 7, it is characterised in that: the step
In rapid S5 and step S6, one of fashioned iron purlin is first installed respectively on the steel sheet-pile wall of two sides before each road inner support is installed, it is ipsilateral
Each road described in spacing between fashioned iron purlin it is identical.
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CN201910211327.6A CN109944252A (en) | 2019-03-20 | 2019-03-20 | A kind of combination lattice steel sheet-pile wall and foundation ditch construction method |
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CN201910211327.6A CN109944252A (en) | 2019-03-20 | 2019-03-20 | A kind of combination lattice steel sheet-pile wall and foundation ditch construction method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113699975A (en) * | 2021-08-27 | 2021-11-26 | 华汇工程设计集团股份有限公司 | HUI type combined steel sheet pile and construction method thereof |
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CN207362832U (en) * | 2017-12-26 | 2018-05-15 | 广东省重工建筑设计院有限公司 | It is a kind of to be used for the T-steel sheet-pile structure without braced cuts structure in silly stratum |
CN208152054U (en) * | 2018-04-29 | 2018-11-27 | 郭轩豪 | A kind of triangle engineering method deep footing groove enclosing structure |
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CN202559363U (en) * | 2012-04-09 | 2012-11-28 | 东南大学 | Foundation pit supporting structure for underground diaphragm wall with steel structure |
CN103061346A (en) * | 2013-01-11 | 2013-04-24 | 东南大学 | Steel plate pile utilizing bolt connection and H-shaped combined foundation pit support structure |
CN205152942U (en) * | 2015-11-13 | 2016-04-13 | 宁波易和桩基工程技术开发有限公司 | Novel combination steel sheet pile and be applied to construction leading truck of this steel sheet pile |
CN205975698U (en) * | 2016-08-08 | 2017-02-22 | 浙江绩丰岩土技术股份有限公司 | H shaped steel diaphragm wall is detained to twin -lock |
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CN113699975A (en) * | 2021-08-27 | 2021-11-26 | 华汇工程设计集团股份有限公司 | HUI type combined steel sheet pile and construction method thereof |
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Application publication date: 20190628 |