CN106906831A - A kind of smooth Corrugated Arch Steel Sheet pile foundation pit supporting method and supporting - Google Patents
A kind of smooth Corrugated Arch Steel Sheet pile foundation pit supporting method and supporting Download PDFInfo
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- CN106906831A CN106906831A CN201710292989.1A CN201710292989A CN106906831A CN 106906831 A CN106906831 A CN 106906831A CN 201710292989 A CN201710292989 A CN 201710292989A CN 106906831 A CN106906831 A CN 106906831A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 238000010276 construction Methods 0.000 claims abstract description 26
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 4
- 239000007924 injection Substances 0.000 claims abstract description 4
- 241000209202 Bromus secalinus Species 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 14
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- 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)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The present invention relates to a kind of smooth Corrugated Arch Steel Sheet pile foundation pit supporting method, comprise the following steps：1）Foundation ditch is measured, the position to steel-pipe pile positions, injection steel-pipe pile；2）Smooth Corrugated Arch Steel Sheet stake is squeezed between adjacent steel-pipe pile, and the stake of smooth Corrugated Arch Steel Sheet is connected with adjacent steel-pipe pile；3）Reinforced concrete circle beam or girder steel are laid on steel-pipe pile, and sets up first inner support；4）Set up second inner support and the 3rd road inner support；5）Underground structure is constructed, the support is removed；6）Underground Construction dismantled the reinforced concrete circle beam circle or steel ring beam to ground 26 ~ 30 days；7）The steel-pipe pile is extracted successively with the stake of smooth Corrugated Arch Steel Sheet.Beneficial effect：Speed of application is fast, and sealing performance is good, and anti-side surface pressure is more powerful, and supporting construction safety and stability is good, and supporting construction is repeatable to be utilized, the features such as environment friendly and pollution-free, with economic benefit higher, social benefit, environmental benefit.
Description
Technical field
The present invention relates to field of civil engineering, more particularly to a kind of smooth Corrugated Arch Steel Sheet pile foundation pit supporting method and supporting knot
Structure.
Background technology
, when applying to compared with deep basal pit, not enough, anti-side surface pressure is small for sealing, reliability for traditional pattern foundation pit supporting structure, because
There is larger hidden danger in this pattern foundation pit supporting structure degree of safety, on the other hand the efficiency of construction of traditional pattern foundation pit supporting structure is relatively low, it is impossible to which realization is built
Material it is reusable, easily bring environmental pollution soil pressure is converted to pressure on foundation ditch axis, foundation ditch using smooth arch form structure
Structure horizontal force resistant is bigger.
The content of the invention
Present invention aim to overcome that when existing engineering project encounters problems in the process of implementation, there is provided a kind of smooth arch form
Steel sheet piling pit supporting method and supporting, are specifically realized by following technical scheme：
The smooth Corrugated Arch Steel Sheet pile foundation pit supporting method, it is characterised in that comprise the following steps：
（1）Foundation ditch is measured, the position to steel-pipe pile positions, according to positioning along foundation ditch surrounding injection steel-pipe pile；
（2）Squeeze into the stake of smooth Corrugated Arch Steel Sheet between adjacent steel-pipe pile, and by the both sides of smooth Corrugated Arch Steel Sheet stake and adjacent steel pipe
Stake connection；
（3）Reinforced concrete circle beam or girder steel are laid on steel-pipe pile, and sets up first inner support；
（4）Set up second inner support and the 3rd road inner support；
（5）Underground structure is constructed, and removes first inner support, second inner support and the 3rd road inner support；
（6）Behind Underground Construction to ground 28 days, the reinforced concrete circle beam circle or steel ring beam are dismantled；
（7）The steel-pipe pile is extracted successively with the stake of smooth Corrugated Arch Steel Sheet.
The further design of the smooth Corrugated Arch Steel Sheet pile foundation pit supporting method is that the week side of boss of the steel-pipe pile is welded with U
Type groove steel.
The further design of the smooth Corrugated Arch Steel Sheet pile foundation pit supporting method is that the both sides of the smooth Corrugated Arch Steel Sheet stake are divided
It is not plugged in the U-type groove steel of adjacent steel-pipe pile.
The further design of the smooth Corrugated Arch Steel Sheet pile foundation pit supporting method is, in step 2）Smooth arch in middle U-type groove steel
Shaped steel plate pile is provided with waterstop with steel-pipe pile junction.
The further design of the smooth Corrugated Arch Steel Sheet pile foundation pit supporting method is, the song of the cambered surface of the smooth Corrugated Arch Steel Sheet
Rate radius is L2/ 8f+f/2, wherein, L is smooth arch steel plate span, and f is smooth kiln crown.
The further design of the smooth Corrugated Arch Steel Sheet pile foundation pit supporting method is that first inner support is located at steel pipe
At stake stake top, first inner support is rectangle reinforced concrete structure.
The further design of the smooth Corrugated Arch Steel Sheet pile foundation pit supporting method is, the second inner support, the 3rd road
Inner support is I-steel waist rail, is correspondingly arranged in respectively at the foundation depth of subsurface 1/3 and descends at 2/3 foundation depth.
The further design of the smooth Corrugated Arch Steel Sheet pile foundation pit supporting method is that the inner support of the I-steel waist rail is adopted
With H profile steel Two bors d's oeuveres supporting construction.
Using described smooth Corrugated Arch Steel Sheet pile foundation pit supporting method smooth Corrugated Arch Steel Sheet stake pattern foundation pit supporting structure, including steel-pipe pile,
Smooth Corrugated Arch Steel Sheet stake, U-type groove steel, reinforced concrete circle beam and waterstop, the steel-pipe pile set equidistant along foundation ditch surrounding
Ground is set, and the U-type groove steel is welded on steel-pipe pile, by the stake connection of smooth Corrugated Arch Steel Sheet, smooth arch form steel between adjacent steel-pipe pile
The both sides of sheet pile are plugged in the channel-section steel on correspondence steel-pipe pile respectively, smooth Corrugated Arch Steel Sheet stake and steel-pipe pile junction in U-type groove steel
The waterstop is provided with, the reinforced concrete circle beam is arranged on steel-pipe pile.
The further design of the smooth Corrugated Arch Steel Sheet stake pattern foundation pit supporting structure is that at least one waist is additionally provided with the steel-pipe pile
Beam, the waist rail is flatly supported on steel-pipe pile, and waist rail is steel I-beam and uses H profile steel Two bors d's oeuveres supporting construction.
Advantages of the present invention is as follows：
The present invention takes full advantage of the advantage of conventional steel plates stake, while steel-pipe pile is squeezed between steel sheet pile considerably increases foundation ditch
Supporting construction horizontal resist forces, due to using smooth Corrugated Arch Steel Sheet, will be perpendicular to foundation ditch face horizontal earth pressure and are converted into be applied to steel pipe
Stake side pressure, forms foundation ditch closed system internal force balance, and supporting construction stability increases.In the stake of smooth Corrugated Arch Steel Sheet and steel pipe
Waterstop is set in the U-type groove steel of stake junction and increased water-stagnating effect.Steel-pipe pile is used in combination with smooth Corrugated Arch Steel Sheet and can be used for
Deeper foundation ditch, smooth Corrugated Arch Steel Sheet stake is consistent with native arch pressure distributional pattern, increases supporting construction stability, pattern foundation pit supporting structure peace
Whole step is greatly increased.
The present invention has speed of application fast, and sealing performance is good, and anti-side surface pressure is more powerful, and supporting construction safety and stability is good,
Supporting construction is repeatable to be utilized, the features such as environment friendly and pollution-free, with economic benefit higher, social benefit, environmental benefit.
Brief description of the drawings
Fig. 1 is the position relationship schematic diagram between the stake of steel-pipe pile, channel-section steel and smooth Corrugated Arch Steel Sheet.
Fig. 2 is the structural representation of smooth Corrugated Arch Steel Sheet stake pattern foundation pit supporting structure in foundation ditch.
Fig. 3 is step 1）Operation chart.
Fig. 4 is step 2）Operation chart.
Fig. 5 is step 3）Operation chart.
Fig. 6 is step 4）Operation chart.
Fig. 7 is the position relationship schematic diagram of channel-section steel and waterstop.
Fig. 8 is that the position relationship of first inner support, second inner support and the 3rd road inner support and steel-pipe pile is illustrated
Figure.
Specific embodiment
Such as the smooth Corrugated Arch Steel Sheet pile foundation pit supporting method that Fig. 1, the present embodiment are provided, following steps are specifically included：
（1）Foundation ditch is measured, the position to steel-pipe pile 1 positions, according to positioning along foundation ditch surrounding injection steel-pipe pile 1,
Referring to Fig. 3.
（2）Squeeze into smooth Corrugated Arch Steel Sheet stake 2 between adjacent steel-pipe pile 1, and by the both sides of smooth Corrugated Arch Steel Sheet stake 2 with it is adjacent
Steel-pipe pile 1 connect, referring to Fig. 4.
（3）Reinforced concrete circle beam 3 or girder steel 3 are laid on steel-pipe pile 1, and sets up first inner support 4, referring to Fig. 5.
（4）Second inner support 5 and the 3rd road inner support 6 are set up, referring to Fig. 6.
（5）Underground structure is constructed, and removes the 3rd road inner support 6, second inner support 5 and first interior branch
Support 4.
（6）Behind Underground Construction to ground 28 days, dismounting reinforced concrete circle beam circle 3 or steel ring beam 3.
（7）Steel-pipe pile 1 is extracted successively with the stake of smooth Corrugated Arch Steel Sheet.
Such as Fig. 2, the week side of boss of the steel-pipe pile in the present embodiment is welded with U-type groove steel.Foundation ditch in Fig. 2 is in cube, is located at
U-type groove steel 11 on four steel-pipe piles of vertex position 1 of foundation ditch is located at two circumferential adjacent fourth class of the sustained height of steel-pipe pile 1
Branch position, the U-type groove steel 11 on remaining steel-pipe pile 1 is located at two circumferential Central Symmetry positions of the sustained height of steel-pipe pile 1.
Such as Fig. 1, the both sides of smooth Corrugated Arch Steel Sheet stake 2 are plugged in the U-type groove steel 11 of adjacent steel-pipe pile 1 respectively realizes smooth arch form
The connection of steel sheet pile 2 and steel-pipe pile 1.
In step 2）Smooth Corrugated Arch Steel Sheet stake 2 is provided with waterstop 12 with the junction of steel-pipe pile 1 in middle U-type groove steel 11.
The radius of curvature of the cambered surface of the smooth Corrugated Arch Steel Sheet in the present embodiment is the radius of curvature of the cambered surface of smooth Corrugated Arch Steel Sheet
It is L2/ 8f+h/2, wherein, the smooth arch steel plate spans of L, f is smooth kiln crown, generally L<1.0m, L/f<5.The present embodiment
In, L is 800mm, and f is 500mm referring to Fig. 1..
Further, in order to further be reinforced to steel-pipe pile, the present embodiment is respectively along the short transverse of steel-pipe pile by up to
Under be respectively provided with first inner support, second inner support and the 3rd road inner support.
Specifically, first inner support in the present embodiment is located at steel-pipe pile stake top, using rectangle, armored concrete knot
Structure.
Further, the second inner support and waist rail of the present embodiment, as needed can be at the foundation depth of subsurface 1/3
Set.The waist rail uses i shaped steel structure, inner support to use H profile steel Two bors d's oeuveres structure.
Further, the 3rd road inner support of the present embodiment as needed can be at the foundation depth of subsurface 2/3 with waist rail.
The waist rail uses i shaped steel structure, inner support to use H profile steel Two bors d's oeuveres structure.
According to smooth Corrugated Arch Steel Sheet pile foundation pit supporting method, the present embodiment provides a kind of smooth Corrugated Arch Steel Sheet stake pattern foundation pit supporting structure,
Such as Fig. 2, the pattern foundation pit supporting structure is main to be made up of steel-pipe pile 1, the stake 2, U-type groove steel 11 of smooth Corrugated Arch Steel Sheet and waterstop 12.Steel-pipe pile 1
Set along foundation ditch surrounding and equally spacedly set, U-type groove steel 11 is welded on steel-pipe pile 1, smooth arch form steel is passed through between adjacent steel-pipe pile 1
Sheet pile 2 is connected, and realizes supporting construction.The supporting construction will be perpendicular to foundation ditch face horizontal earth pressure and is converted into by smooth Corrugated Arch Steel Sheet
Steel-pipe pile side pressure is applied to, foundation ditch closed system internal force balance is formd, supporting construction stability increases.
Further, in order to increase supporting construction water-stagnating effect, the both sides of smooth Corrugated Arch Steel Sheet stake 2 are plugged in correspondence steel respectively
In channel-section steel 11 on pile tube, smooth Corrugated Arch Steel Sheet stake is provided with waterstop 12, armored concrete with steel-pipe pile junction in U-type groove steel
Circle beam setting is on steel-pipe pile.
Such as Fig. 7, waterstop 12 is fixed on channel-section steel 11 by rivet 13 in the present embodiment.The waterstop 12 of the present embodiment is chlorine
Fourth steel side glue waterstop.Welded with channel-section steel 11 at the steel side of waterstop 12.
Also being set up in order to add column, armored concrete angle brace in foundation ditch, on the steel-pipe pile of the present embodiment has in three roads
Support, respectively first inner support 4, the road inner support 6 of second inner support 5 and the 3rd.First inner support 4 is mixed located at reinforcing bar
The bottom of steel-pipe pile 1 in solidifying pedosphere beam, is rectangle, reinforced concrete structure.Second inner support 5 is equal with the 3rd road inner support 6
It is horizontally disposed waist rail.Waist rail is for steel I-beam and uses H profile steel Two bors d's oeuveres supporting construction, participates in Fig. 8.
The smooth Corrugated Arch Steel Sheet pile foundation pit supporting method and supporting construction of the present embodiment take full advantage of conventional steel plates stake
Advantage, while steel-pipe pile is squeezed between steel sheet pile considerably increases foundation pit supporting construction horizontal resist forces, due to using smooth arch form
Steel plate, will be perpendicular to foundation ditch face horizontal earth pressure and is converted into be applied to steel-pipe pile side pressure, form in foundation ditch closed system
Dynamic balance, supporting construction stability increases.Setting waterstop in the stake of smooth Corrugated Arch Steel Sheet with steel-pipe pile junction U-type groove steel increases
Water-stagnating effect.Steel-pipe pile is used in combination with smooth Corrugated Arch Steel Sheet and can be used for deeper foundation ditch, and smooth Corrugated Arch Steel Sheet stake is pressed with soil arch
Power distributional pattern is consistent, increases supporting construction stability, and pattern foundation pit supporting structure degree of safety is greatly increased.
The present embodiment has speed of application fast, and sealing performance is good, and anti-side surface pressure is more powerful, supporting construction safety and stability
Good, supporting construction is repeatable to be utilized, the features such as environment friendly and pollution-free, with economic benefit higher, social benefit, environmental benefit.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Some improvement can also be made without departing from the principles of the invention, and these improvement also should be regarded as protection scope of the present invention.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (10)
1. a kind of smooth Corrugated Arch Steel Sheet pile foundation pit supporting method, it is characterised in that comprise the following steps：
（1）Foundation ditch is measured, the position to steel-pipe pile positions, according to positioning along foundation ditch surrounding injection steel-pipe pile；
（2）Squeeze into the stake of smooth Corrugated Arch Steel Sheet between adjacent steel-pipe pile, and by the both sides of smooth Corrugated Arch Steel Sheet stake and adjacent steel pipe
Stake connection；
（3）Reinforced concrete circle beam or girder steel are laid on steel-pipe pile, and sets up first inner support；
（4）Set up second inner support and the 3rd road inner support；
（5）Underground structure is constructed, and removes first inner support, second inner support and the 3rd road inner support；
（6）Underground Construction dismantled the reinforced concrete circle beam circle or steel ring beam to ground 26 ~ 30 days；
（7）The steel-pipe pile is extracted successively with the stake of smooth Corrugated Arch Steel Sheet.
2. smooth Corrugated Arch Steel Sheet pile foundation pit supporting method according to claim 1, it is characterised in that the week side of boss of the steel-pipe pile
It is welded with U-type groove steel.
3. smooth Corrugated Arch Steel Sheet pile foundation pit supporting method according to claim 2, it is characterised in that the smooth Corrugated Arch Steel Sheet stake
Both sides be plugged in respectively in the U-type groove steel of adjacent steel-pipe pile.
4. smooth Corrugated Arch Steel Sheet pile foundation pit supporting method according to claim 3, it is characterised in that in step 2）Middle U-type groove
Smooth Corrugated Arch Steel Sheet stake is provided with waterstop with steel-pipe pile junction in steel.
5. smooth Corrugated Arch Steel Sheet pile foundation pit supporting method according to claim 1, it is characterised in that the smooth Corrugated Arch Steel Sheet
The radius of curvature of cambered surface is L2/ 8f+h/2, wherein, L is smooth arch steel plate span, and f is smooth kiln crown.
6. smooth Corrugated Arch Steel Sheet pile foundation pit supporting method according to claim 1, it is characterised in that first inner support
It is located at steel-pipe pile stake top, first inner support is rectangle reinforced concrete structure.
7. smooth Corrugated Arch Steel Sheet pile foundation pit supporting method according to claim 1, it is characterised in that the second inner support,
3rd road inner support is I-steel waist rail, is correspondingly arranged in respectively at the foundation depth of subsurface 1/3 and lower 2/3 foundation depth
Place.
8. smooth Corrugated Arch Steel Sheet pile foundation pit supporting method according to claim 1, it is characterised in that the I-steel waist rail
Inner support uses H profile steel Two bors d's oeuveres supporting construction.
9. the smooth Corrugated Arch Steel Sheet pile foundation of the smooth Corrugated Arch Steel Sheet pile foundation pit supporting method as described in claim any one of 1-8 cheats branch
Shield, it is characterised in that including steel-pipe pile, the stake of smooth Corrugated Arch Steel Sheet, U-type groove steel, reinforced concrete circle beam and waterstop, the steel
Pile tube is set along foundation ditch surrounding and equally spacedly sets, and the U-type groove steel is welded on steel-pipe pile, by smooth between adjacent steel-pipe pile
Corrugated Arch Steel Sheet stake connection, the both sides of smooth Corrugated Arch Steel Sheet stake are plugged in the channel-section steel on correspondence steel-pipe pile respectively, smooth arch in U-type groove steel
Shaped steel plate pile is provided with the waterstop with steel-pipe pile junction, and the reinforced concrete circle beam is arranged on steel-pipe pile.
10. smooth Corrugated Arch Steel Sheet stake pattern foundation pit supporting structure according to claim 9, it is characterised in that be additionally provided with the steel-pipe pile to
Few one waist rail, the waist rail is flatly supported on steel-pipe pile, and waist rail is steel I-beam and is tied using the support of H profile steel Two bors d's oeuveres
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292989.1A CN106906831A (en) | 2017-04-28 | 2017-04-28 | A kind of smooth Corrugated Arch Steel Sheet pile foundation pit supporting method and supporting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292989.1A CN106906831A (en) | 2017-04-28 | 2017-04-28 | A kind of smooth Corrugated Arch Steel Sheet pile foundation pit supporting method and supporting |
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| Publication Number | Publication Date |
|---|---|
| CN106906831A true CN106906831A (en) | 2017-06-30 |
Family
ID=59211007
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710292989.1A Pending CN106906831A (en) | 2017-04-28 | 2017-04-28 | A kind of smooth Corrugated Arch Steel Sheet pile foundation pit supporting method and supporting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113071A (en) * | 2018-08-30 | 2019-01-01 | 四川国泰建设工程有限公司 | A kind of deep-well retaining wall steel structure support and its construction method |
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| CN104532867A (en) * | 2014-12-25 | 2015-04-22 | 张继红 | Composite-cavity steel pipe continuous wall and waterstop effect detection method thereof |
| CN204475366U (en) * | 2015-01-26 | 2015-07-15 | 张继红 | Steel pipe pile diaphragm wall and level thereof are to syndeton and auxiliary construction pile frame |
| CN204715343U (en) * | 2015-06-22 | 2015-10-21 | 郭永 | A kind of Combined water-stopping retaining wall |
| CN105297706A (en) * | 2015-10-21 | 2016-02-03 | 同济大学 | Double-lock-catch flat steel pipe pile used for foundation pit support |
-
2017
- 2017-04-28 CN CN201710292989.1A patent/CN106906831A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202689009U (en) * | 2012-06-11 | 2013-01-23 | 东南大学 | Steel sheet pile and tubular pile combined foundation pit supporting structure |
| CN103334439A (en) * | 2013-06-06 | 2013-10-02 | 广西建工集团第五建筑工程有限责任公司 | Long-span reinforced concrete inner support structure of rectangular deep foundation pit and construction method of structure |
| CN103290848A (en) * | 2013-06-20 | 2013-09-11 | 江苏城市职业学院 | Large diameter arc-shaped steel sheet pile combined foundation pit retaining structure and construction method thereof |
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| CN204475366U (en) * | 2015-01-26 | 2015-07-15 | 张继红 | Steel pipe pile diaphragm wall and level thereof are to syndeton and auxiliary construction pile frame |
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| CN109113071A (en) * | 2018-08-30 | 2019-01-01 | 四川国泰建设工程有限公司 | A kind of deep-well retaining wall steel structure support and its construction method |
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