CN107165170A - A kind of foundation ditch construction method - Google Patents
A kind of foundation ditch construction method Download PDFInfo
- Publication number
- CN107165170A CN107165170A CN201710432981.0A CN201710432981A CN107165170A CN 107165170 A CN107165170 A CN 107165170A CN 201710432981 A CN201710432981 A CN 201710432981A CN 107165170 A CN107165170 A CN 107165170A
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- steel
- foundation ditch
- construction method
- construction
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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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/18—Placing by vibrating
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- Engineering & Computer Science (AREA)
- Structural Engineering (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)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention provides a kind of foundation ditch construction method, comprise the following steps：Some steel-pipe piles with tongue and groove are driven underground, and form continuous building enclosure；Soil cement reinforcing is carried out in the tongue and groove of adjacent steel-pipe pile；Excavation of foundation pit is to desired depth.In the foundation ditch construction method that the present invention is provided, by the way that some steel-pipe piles with tongue and groove are driven underground, and continuous building enclosure is formed, supporting is carried out to excavation of foundation pit, so as to reach that construction occupied ground is small, construction period is fast, and the low effect of construction cost；In addition, steel-pipe pile can extract recycling after foundation ditch inwall and construction of bottom plates terminate, construction cost is further saved；Further, the shaped steel of underground will be inserted as a part for inwall, the overall structural strength of foundation ditch is improved, and improve the anti-floating ability of base plate of foundation pit.
Description
Technical field
The invention belongs to Foundation Pit Construction technical field, relate generally to a kind of positioned at down town building dense area, friendship
Lead to the construction method of busy and underground utilities more regions base pit engineering.
Background technology
Foundation ditch is the heatable adobe sleeping platform excavated in basic engineering position by substrate absolute altitude and basic plane size.Should basis before excavation
Geological hydrology data, with reference to live nearby buildings situation, determines excavation plan, and perform water-proof drainage work.Excavate not deep
Person can make Stability of Earth Slopes using the method for putting side slope, and the big I of its gradient is determined by relevant construction regulation.Excavate deeper and neighbouring
The person that has building, can use foundation pit walls method for protecting support, gunite concrete wall protecting method, and Large Foundation Pit under construction ground even using connecting
The method of continuous wall, protection outside soil layer collapse into；No influencer is nearby built, well-point method lowering of watertable can be used, used
Slope open cut；It can be excavated in cold district using natural cold air freezing process.
But still there are many problems in current Foundation Pit Construction, wherein being badly in need of that to be solved built in down town
Build close quarters construction problem.Because the construction periphery in down town building dense region has building to need protection, and construction
Space is small, if will necessarily be adopted using conventional construction method to shaft perimeter environmental effects, particularly downtown area
With method of the diaphram wall as building enclosure, greatly, long construction period influences very prominent to occupied ground on surrounding enviroment.
The content of the invention
It is an object of the invention to provide a kind of foundation ditch construction method, to solve in down town building dense region foundation ditch
Construction space is small, long construction period, high foundation pit enclosure cost the problem of.
In order to solve the above technical problems, the present invention provides a kind of foundation ditch construction method, comprise the following steps：
Some steel-pipe piles with tongue and groove are driven underground, and form continuous building enclosure；
Soil cement reinforcing is carried out in the tongue and groove of adjacent steel-pipe pile；
Excavation of foundation pit is to desired depth.
Optionally, in the tongue and groove of adjacent steel-pipe pile after progress soil cement reinforcing, before excavation of foundation pit to desired depth,
Also include：
Some shaped steel are driven underground along the inner side of building enclosure.
Optionally, after some shaped steel are driven underground along the inner side of building enclosure, in addition to：
Constructed at the top of building enclosure top beam, and the upper end of top beam and each shaped steel is connected.
Optionally, during excavation of foundation pit to desired depth, it is additionally included in the foundation ditch excavated and steel perimeter beam is set,
And the steel perimeter beam is connected with each shaped steel.
Optionally, the border using building enclosure as excavation of foundation pit is excavated so that the upper part of every shaped steel from
It is exposed in soil；
The foundation ditch construction method also includes inner lining construction wall, during inner lining construction wall, by exposed type
Steel is fixed in inwall.
Optionally, after inwall construction terminates, in addition to construction bottom plate, and the bottom plate and the inwall are poured
Together.
Optionally, after the completion of inner lining construction wall and construction bottom plate are equal, in addition to by some steel pipes with tongue and groove
Stake is extracted from underground, and the space after extraction is filled and led up.
Optionally, soil cement reinforcing is carried out using high-pressure rotary jet grouting pile.
Optionally, the depth that soil cement reinforcing is carried out in the tongue and groove of adjacent steel-pipe pile is less than the depth that steel-pipe pile is driven underground
Degree.
Optionally, using hydraulic vibration driver or exempt from resonance hammer some steel-pipe piles with tongue and groove are driven underground.
In the foundation ditch construction method that the present invention is provided, by the way that some steel-pipe piles with tongue and groove are driven underground, and shape
Carry out soil cement reinforcing into continuous building enclosure, and in the tongue and groove of adjacent steel-pipe pile, supporting is carried out to excavation of foundation pit, i.e., it is real
Showed the effect to pattern foundation pit supporting structure, the effect for keeping away water served again, compared to construction diaphram wall, its construct occupied ground it is small,
Construction period is fast and construction cost is low；Utilized in addition, steel-pipe pile is repeatable, further save construction cost；Further, will
The shaped steel of underground is inserted as a part for inwall, the overall structural strength of foundation ditch is improved.
Brief description of the drawings
Fig. 1 is the flow chart of excavation of foundation pit in the embodiment of the application one；
Fig. 2 a and Fig. 2 b are the top view and cross section view after foundation pit construction steel pipe column in the embodiment of the application one respectively；
Fig. 3 a and Fig. 3 b are the vertical view in the tongue and groove of steel pipe column after construction casting cement in the embodiment of the application one respectively
Figure and cross section view；
Fig. 4 a and Fig. 4 b are the top view and cross section view after foundation pit construction shaped steel in the embodiment of the application one respectively；
Fig. 5 a and Fig. 5 b are the top view and cross section view after foundation pit construction top beam in the embodiment of the application one respectively；
Fig. 6 a and Fig. 6 b are the top view after excavation of foundation pit, and inner lining construction wall and bottom plate in the embodiment of the application one respectively
And cross section view；
The section that Fig. 7 a and Fig. 7 b are the schematic cross-section of single steel-pipe pile 1 respectively and wherein three steel-pipe piles are sequentially connected
Schematic diagram.
In figure：1- steel-pipe piles；11- steel-pipe pile bodies；12- matchboards；2- shaped steel；3- top beams；4- inwalls；5- bottoms
Plate.
Embodiment
The purpose of the application is, solves the problems, such as down town building dense region Foundation Pit Construction.For in city
The construction of Center Building close quarters base pit engineering, using the steel-pipe pile for being easy to construction as interim building enclosure, reduces construction
Shared place, and the repeatable utilization of steel-pipe pile, construction period are fast；Secondly, the inwall of foundation ditch is formed along steel-pipe pile
Building enclosure on the inside of construct, and enter shaped steel in inwall interpolation, solve the problems, such as base pit engineering entirety stress.
Foundation ditch construction method proposed by the present invention is described in further detail below in conjunction with the drawings and specific embodiments.Root
According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that, accompanying drawing is using very simple
The form of change and use non-accurately ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
The foundation ditch construction method that the application is provided, comprises the following steps：
First, some steel-pipe piles with tongue and groove are driven underground, and form continuous building enclosure；
Then, soil cement reinforcing is carried out in the tongue and groove of adjacent steel-pipe pile；
Finally, excavation of foundation pit is to desired depth.
Refering to Fig. 1, it is illustrated that a kind of flow chart of preferred foundation ditch construction method.Wherein, enterprise is being carried by some
In the work progress that the steel-pipe pile of mouth is driven underground, hydraulic vibration driver can be used or exempt from resonance hammer and constructed.Specifically, hydraulic pressure
Vibration hammer or exempt from resonance hammer steel-pipe pile is clamped, produce height by means of the high-speed rotation of the eccentric block inside hydraulic vibration driver
Frequency vibration, makes the sandstone around it liquefy, soil property is soft by the steel-pipe pile of clamping, so as to reduce surrounding sandstone or soil to steel
The frictional force of pile tube, at this moment steel-pipe pile buried in its deadweight and vibration hammer effect underthrust, equally can also be carried less
Lift acts on lower steel-pipe pile 1 and extracted.The building enclosure formed as shown in Figure 2 a and 2 b, it is necessary to explanation, Fig. 2 a and
Fig. 2 b illustrate only a kind of shape of foundation ditch, and the shape of general foundation ditch includes circular and square.The present embodiment is with Circular Pit
Exemplified by illustrate, but the construction method is equally applicable to other foundation pit constructions of different shapes.Incorporated by reference to Fig. 7 a and Fig. 7 b, figure
7a shows the cross sectional shape of single steel-pipe pile 1, and Fig. 7 b are shown in which the position relationship that three steel-pipe piles 1 are sequentially connected.Figure
In every steel-pipe pile 1 include steel-pipe pile body 11 and four matchboards 12 being fixed on steel-pipe pile body 11, tongue and groove is by adjacent
Two matchboards 12 surround, the matchboard 12 of adjacent steel-pipe pile 1 intersects, and is arranged successively along foundation ditch position
Row, and surround the shape that foundation ditch is specified.It is contemplated that by Fig. 7 b after all steel-pipe piles 1 insert underground, it is all adjacent
Steel-pipe pile 1 between intersected by matchboard 12.In construction steel pile tube 1, using hydraulic vibration driver by steel-pipe pile 1
Clamp, steel-pipe pile 1 is driven underground under the exciting force effect of hydraulic vibration driver.
Matchboard 12 intersects, but still has gap between adjacent steel-pipe pile 1, is still difficult to waterproof
Effect, in order to improve the waterproof ability and bulk strength of building enclosure, it is preferred that enter water-filling in the tongue and groove of adjacent steel-pipe pile 1
Soil is reinforced, and Fig. 3 a and Fig. 3 b show the top view and cross section view for carrying out foundation ditch after soil cement reinforcing, wherein, soil cement adds
Admittedly can be constructed using high-pressure rotary jet grouting pile, cement is driven underground and mixed with soil, and the depth that soil cement is reinforced
Degree is smaller than the depth that steel-pipe pile 1 is driven underground.One is formd in tongue and groove after soil cement reinforcing between adjacent steel-pipe pile 1
The mixture of cement and soil, that is, strengthen the stability of steel-pipe pile 1, and effectively play a part of foundation ditch waterproof.In tongue and groove
The benefit for carrying out soil cement reinforcing is that cement is easy to trickle along matchboard 12, is difficult to flow in the soil body outside tongue and groove, so that
Make reinforcing more effective, water retaining function is more preferable.
Preferably, in order to further enhance support force of the building enclosure to the soil body, and it is strong to strengthen the structure of later stage inwall
Degree, in addition to set along on the inside of building enclosure some shaped steel.Refering to Fig. 4 a and Fig. 4 b, shaped steel 2 constructs one along steel-pipe pile 1
Circle, its insertion depth can slightly be shallower than steel-pipe pile 1.Specifically, the construction method of shaped steel 2 is similar with the construction method of steel-pipe pile 1, can
Shaped steel 2 is sequentially inserted into by underground using hydraulic vibration driver, because the section of shaped steel 2 is smaller, so its construction speed is than steel-pipe pile 1
Construction speed it is fast.
Preferably, in order to further strengthen the support force of building enclosure and shaped steel 2 to the soil body, being additionally included in and going along with sb. to guard him knot
Construction top beam at the top of structure, and top beam and each shaped steel 2 are connected.Top beam is reinforced concrete structure, can first use reinforcing bar
Cage is arranged on the top of steel-pipe pile 1, and connects each shaped steel 2, then the casting concrete in steel reinforcement cage, finally carries out concrete and supports
Shield, so as to form top beam.Fig. 5 a and Fig. 5 b, show structure and the position of construction top beam 3.
In Excavation Process, if foundation ditch is deeper, in order to further improve the support force of building enclosure, it is additionally included in
Steel perimeter beam is set in the foundation ditch of excavation, and steel perimeter beam is connected with each shaped steel 2.Steel perimeter beam is to enclose steel around the one of foundation ditch inwall
Structure, it can play a part of support to the soil body in the middle part of foundation ditch.According to the depth of foundation ditch, the quantity of steel perimeter beam can suitably increase
Plus.
Excavation of foundation pit can be carried out using contrary sequence method, desired depth is arrived until excavating.When foundation ditch is deeper, it can use and beat precipitation
Well, carries out dewatering excavation, and excavation of foundation pit can coordinate the excavator of some different models to be constructed.
Foundation pit construction also includes inner lining construction wall and bottom plate, if wherein inserted underground during inner lining construction wall
Dry type steel 2 is fixed in inwall, so that a part of the shaped steel 2 as inwall, and then it is strong to enhance the structure of inwall
Degree, can also improve the anti-floating ability of substrate.Specifically, the border using building enclosure as excavation of foundation pit is excavated, so that
Make the upper part of every shaped steel 2 exposed from soil, and the part do not excavated is still inserted in soil；In the mistake of inner lining construction wall
Cheng Zhong, exposed shaped steel 2 is fixed in inwall.It is fixed on so as to which the upper part of shaped steel 2 is poured in inwall, type
The lower part of steel 2 is still inserted in soil.Refering to Fig. 6 a and Fig. 6 b, it illustrates the locations of structures of inwall 4 and the structure of bottom plate 5
Position, bottom plate 5 and inwall 4 use reinforced concrete structure, and both is linked together.
After the completion of inner lining construction wall 4 and construction bottom plate 5 are equal, the construction inside foundation ditch tends to finish.The overall knot of foundation ditch
Structure is mainly bottom plate 5 and inwall 4, and the at this time supporting role of steel-pipe pile 1 diminishes, in order to improve the utilization rate of steel-pipe pile 1, also
Including all some steel-pipe piles 1 with tongue and groove are extracted from underground, and the space after extraction is filled and led up, tamped；It is preferred that, can
To fill the space after steel-pipe pile is extracted using cement mortar, so that the structure of foundation ditch is more firm, water proof effect is more preferable.Extract
Steel-pipe pile 1 is stored after being cleared up, in case next time is used again.
In summary, in the foundation ditch construction method that the present invention is provided, on the one hand it is used as by continuous steel-pipe pile of constructing
Building enclosure, gib is carried out to excavation of foundation pit, so as to reach that construction occupied ground is small, construction period is fast, and construction cost
Low effect；In addition, steel-pipe pile can extract recycling after foundation ditch inwall and construction of bottom plates terminate, further save and apply
Work cost；Further, the shaped steel of underground will be inserted as a part for inwall, the overall structural strength of foundation ditch is improved, and
Improve the anti-floating ability of base plate of foundation pit.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Scope.
Claims (10)
1. a kind of foundation ditch construction method, it is characterised in that comprise the following steps：
Some steel-pipe piles with tongue and groove are driven underground, and form continuous building enclosure；
Soil cement reinforcing is carried out in the tongue and groove of adjacent steel-pipe pile；
Excavation of foundation pit is to desired depth.
2. foundation ditch construction method as claimed in claim 1, it is characterised in that soil cement is carried out in the tongue and groove of adjacent steel-pipe pile
After reinforcing, before excavation of foundation pit to desired depth, in addition to：
Some shaped steel are driven underground along the inner side of building enclosure.
3. foundation ditch construction method as claimed in claim 2, it is characterised in that play some shaped steel along the inner side of building enclosure
After entering underground, in addition to：
Constructed at the top of building enclosure top beam, and the upper end of top beam and each shaped steel is connected.
4. foundation ditch construction method as claimed in claim 2 or claim 3, it is characterised in that in the process of excavation of foundation pit to desired depth
In, it is additionally included in the foundation ditch excavated and steel perimeter beam is set, and the steel perimeter beam is connected with each shaped steel.
5. foundation ditch construction method as claimed in claim 2 or claim 3, it is characterised in that the side of excavation of foundation pit is used as using building enclosure
Boundary is excavated, so that the upper part of every shaped steel is exposed from soil；
The foundation ditch construction method also includes inner lining construction wall, and during inner lining construction wall, exposed shaped steel is consolidated
It is scheduled in inwall.
6. foundation ditch construction method as claimed in claim 5, it is characterised in that after inwall construction terminates, in addition to construction
Bottom plate, and together with the bottom plate poured with the inwall.
7. foundation ditch construction method as claimed in claim 6, it is characterised in that completed in inner lining construction wall and construction bottom plate
Afterwards, in addition to by some steel-pipe piles with tongue and groove extracted from underground, and the space after extraction is filled and led up.
8. foundation ditch construction method as claimed in claim 1, it is characterised in that soil cement reinforcing is carried out using high-pressure rotary jet grouting pile.
9. the foundation ditch construction method as described in claim 1 or 8, it is characterised in that enter water-filling in the tongue and groove of adjacent steel-pipe pile
The depth that soil is reinforced is less than the depth that steel-pipe pile is driven underground.
10. foundation ditch construction method as claimed in claim 1, it is characterised in that if using hydraulic vibration driver or exempting from resonance hammer general
The dry steel-pipe pile with tongue and groove is driven underground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432981.0A CN107165170B (en) | 2017-06-09 | 2017-06-09 | A kind of foundation ditch construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710432981.0A CN107165170B (en) | 2017-06-09 | 2017-06-09 | A kind of foundation ditch construction method |
Publications (2)
| Publication Number | Publication Date |
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| CN107165170A true CN107165170A (en) | 2017-09-15 |
| CN107165170B CN107165170B (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710432981.0A Active CN107165170B (en) | 2017-06-09 | 2017-06-09 | A kind of foundation ditch construction method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042147A (en) * | 2019-11-20 | 2020-04-21 | 天津建岩岩土工程有限公司 | Screw-in type steel pile supporting method |
| CN114808696A (en) * | 2022-05-07 | 2022-07-29 | 广西欣港交通投资有限公司 | Prefabricated and cast-in-place combined anchorage foundation enclosure structure and construction method |
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|---|---|---|---|---|
| JPH0718668A (en) * | 1993-06-29 | 1995-01-20 | Kumagai Gumi Co Ltd | Temporary shutoff method with steel pipe sheet pile or steel sheet pile |
| CN103397634A (en) * | 2013-08-16 | 2013-11-20 | 中铁上海工程局有限公司 | Anchoring construction method for fastener steel tube pile cofferdam |
| CN104846832A (en) * | 2015-06-03 | 2015-08-19 | 中船第九设计研究院工程有限公司 | Construction method of circular deep foundation pit enclosure of discrete pile support |
| CN105442614A (en) * | 2015-11-19 | 2016-03-30 | 浙江桐砚建筑规划设计有限公司 | Construction method for foundation pit support |
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2017
- 2017-06-09 CN CN201710432981.0A patent/CN107165170B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0718668A (en) * | 1993-06-29 | 1995-01-20 | Kumagai Gumi Co Ltd | Temporary shutoff method with steel pipe sheet pile or steel sheet pile |
| CN103397634A (en) * | 2013-08-16 | 2013-11-20 | 中铁上海工程局有限公司 | Anchoring construction method for fastener steel tube pile cofferdam |
| CN104846832A (en) * | 2015-06-03 | 2015-08-19 | 中船第九设计研究院工程有限公司 | Construction method of circular deep foundation pit enclosure of discrete pile support |
| CN105442614A (en) * | 2015-11-19 | 2016-03-30 | 浙江桐砚建筑规划设计有限公司 | Construction method for foundation pit support |
Non-Patent Citations (1)
| Title |
|---|
| 刘宗帅等: "两种基坑支护形式在同一工程中的应用与对比分析", 《青岛理工大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042147A (en) * | 2019-11-20 | 2020-04-21 | 天津建岩岩土工程有限公司 | Screw-in type steel pile supporting method |
| CN114808696A (en) * | 2022-05-07 | 2022-07-29 | 广西欣港交通投资有限公司 | Prefabricated and cast-in-place combined anchorage foundation enclosure structure and construction method |
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| Publication number | Publication date |
|---|---|
| CN107165170B (en) | 2019-11-26 |
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