CN208717917U - The supporting construction of soft layer foundation pit - Google Patents
The supporting construction of soft layer foundation pit Download PDFInfo
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- CN208717917U CN208717917U CN201821404686.0U CN201821404686U CN208717917U CN 208717917 U CN208717917 U CN 208717917U CN 201821404686 U CN201821404686 U CN 201821404686U CN 208717917 U CN208717917 U CN 208717917U
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Abstract
The utility model discloses a kind of supporting construction of soft layer foundation pit, comprising: multiple first support piles, are cement mixing method；Multiple the second support piles of T shape, are reinforced concrete pile；Multiple securing plates；Multiple anchor poles, one end are fixed on reinforcing plate face, and the other end protrudes into soil layer obliquely；Multiple T shape third support piles, are reinforced concrete pile；Multiple drain assemblies comprising interconnected multiple horizontal branch pipees, vertical general pipeline, multiple valves, multiple pressure gauges, pump and water tank.The utility model targetedly carries out supporting pile structure design, is reinforced using anchor pole to securing plate pulling force, is drawn water pressure release using drain assembly, plays the role of reinforcing foundation pit sidewise restraint jointly, save the cost improves support capacity.
Description
Technical field
The utility model relates to technical field of civil engineering.More specifically, the utility model relates to a kind of soft layers
The supporting construction of foundation pit.
Background technique
With the development of soft layer area engineering construction, soft layer foundation stabilization and foundation pit composite retaining form are increasingly
The stabilization etc. of diversification, the stabilization of ground and sedimentation, foundation pit after work, which has become, carries out engineering construction and height on soft soil foundation
The critical issue of quality operation.If general carry out supporting using support pile, in order to reach preferable supporting effect, then need by
Support pile squeezes into soil body deep layer, forms long support pile, but if all support piles are long stake, increases project cost,
Bring very big cost burden.But if support pile is stub, security performance is again undesirable, so needing to find
It is a kind of can the supporting construction of security performance that has had of save the cost right bank.
Utility model content
One purpose of the utility model is to solve at least the above problems, and provide the advantages of at least will be described later.
There are one purposes to be to provide the supporting construction of soft layer foundation pit a kind of for the utility model, targetedly into
The design of row supporting pile structure, reinforces securing plate pulling force using anchor pole, is drawn water pressure release using drain assembly, play jointly plus
Strong basis cheats the effect of sidewise restraint, and save the cost improves support capacity.
In order to realize these purposes and other advantages according to the present utility model, a kind of branch of soft layer foundation pit is provided
Protection structure, comprising:
Multiple first support piles are arranged at intervals on foundation pit two sides side slope and are vertically inserted into bottom of foundation ditch, and described first
Support pile is cement mixing method；
Multiple the second support piles of T shape, are arranged at intervals on foundation pit two sides side slope, between two neighboring second support pile
If there are two first support piles, the both ends of the horizontal component of second support pile are fixed on two first positioned at outside
On support pile and it is lower than the top of first support pile, the vertical portion of second support pile downward and is higher than described the
The bottom end of one support pile, second support pile are reinforced concrete pile；
Multiple securing plates, are vertically arranged in foundation pit two sides side slope, and a securing plate is located at one described second
The lower section of fender pile, and the bottom end of second support pile rides upon the top of the securing plate, the securing plate is along foundation pit length
The both ends in direction are fixed on two first support piles in outside；
Multiple anchor poles, one end of the anchor pole are fixed on a side surface of the securing plate towards soil layer, and the other end is oblique
Under protrude into soil layer；
Multiple T shape third support piles, are arranged at intervals on foundation pit two sides side slope, between two neighboring second support pile
Equipped with a third support pile, the both ends of the horizontal component of the third support pile are fixed on two first positioned at outside
On support pile and it is higher than the bottom end of first support pile, the vertical portion of second support pile is upward and lower than described the
The top of one support pile, the third support pile are reinforced concrete pile；
Multiple drain assemblies are arranged in foundation pit two sides side slope, and the drain assembly includes interconnected multiple levels
Branch pipe, vertical general pipeline, multiple valves, multiple pressure gauges, pump and water tank, multiple horizontal branch pipees are distributed from top to bottom, the water
Soil layer is protruded into one end of flat branch pipe, the other end is connected to the vertical general pipeline, the bottom end of the vertical general pipeline protrude into bottom of foundation ditch,
Top connects the water tank, and valve and pressure gauge are equipped on each horizontal branch pipe, and pump is mounted on the vertical general pipeline.
Preferably, further include multiple 4th support piles, be vertically inserted into bottom of foundation ditch, and be located under Box-shaped Drainage Culvert
Side, multiple 4th support piles with diamond shape array distribution and top it is concordant, to support the Box-shaped Drainage Culvert, the 4th support pile
For cement mixing method.
Preferably, first support pile, the 4th support pile stake diameter be 0.5m, first support pile,
4th support pile protrudes into foundation pit bottom or less at least 3m.
Preferably, multiple first support pile equidistantly distributeds, the spacing of two neighboring first support pile are 2m.
Preferably, it is provided with steel mesh below the third support pile, the steel mesh is along foundation pit length direction
Both ends are fixed on two first support piles in outside.
Preferably, the steel mesh is the single layer steel mesh of grid spacing 200mm × 200mm.
The utility model is include at least the following beneficial effects:
The first, the first support pile, the second support pile, third support pile are interval-staggered, and supporting construction is safe and reliable, soft
Weak soil layer spends with oneself to increase in a certain range to the moment of flexure that the first support pile generates to be gradually reduced, and the insertion of the first support pile is similar
Supporting construction is carried out in the soft layer of muck soil, with the second support pile, third support pile collective effect in foundation pit two sides
Slope undertakes the vertical load of structure and the lateral moment of flexure of soil layer, and securing plate reduces the destruction of soil layer side slope bearing capacity, and anchor pole is oblique
It is inserted into soil layer to installation, increases pressure-bearing effect, itself pulling force is reached into soil layer depths, drain assembly draws water pressure release, reduces soil layer
Impact of the underground water to supporting construction, entire supporting construction bearing capacity is strong, construction cost is low；
The second, multiple 4th support piles meet ground bearing capacity requirement with diamond shape array distribution, are inserted into foundation pit bottom
The supporting course in portion realizes foundation stabilization；Cement mixing method is buried cement jet using cement as curing agent, using mixing pile machine
Body is simultaneously sufficiently stirred, and makes cement and soil that a series of physical reactions occur, and soft layer scleroma improves foundation strength；
Third, the first support pile, the 4th support pile stake diameter, and protrude into the setting of foundation pit bottom length below contentedly
Base bearing capacity, deformation, foundation pit stability requirement, the two are same support pile, are convenient for site construction management, and only length is different, subtracts
Prepare and work progress cross-operation before few unnecessary construction；The distribution form of multiple first support piles, makes the second support pile
T shape supporting construction of the same race can be used with third support pile, be convenient for site construction management；Steel mesh is set below third support pile
Supporting between formation stake；The selection of its concrete specification further increases whole support capacity.
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of technical solution of the utility model；
Fig. 2 is the longitudinal sectional drawing of the foundation pit of the another technical solution of the utility model.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
It should be noted that experimental method described in following embodiments is unless otherwise specified conventional method, institute
Reagent and material are stated, unless otherwise specified, is commercially obtained；It needs to illustrate in the description of the present invention,
It is unless specifically defined or limited otherwise, term " installation ", " connected ", " setting " shall be understood in a broad sense, for example, it may be
It is fixedly linked, is arranged, may be a detachable connection, be arranged, or be integrally connected, be arranged.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.Term " transverse direction ", " longitudinal direction ",
The orientation of the instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description,
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, because
This should not be understood as limiting the present invention.
As shown in Figure 1, 2, the utility model provides a kind of supporting construction of soft layer foundation pit, comprising:
Multiple first support piles 1 are arranged at intervals on foundation pit two sides side slope and are vertically inserted into bottom of foundation ditch, can be according to soil
Layer structure protrudes into 3~3.5m, and the length of the first support pile 1 can be 15m or so, and first support pile 1 is cement mixing method,
Cement jet is entered the soil body using mixing pile machine and is sufficiently stirred by cement mixing method using cement as curing agent, makes cement and soil
A series of physical reactions occur, soft layer scleroma improves foundation strength；
Multiple the second support piles of T shape 2, forward direction setting, and are arranged at intervals on foundation pit two sides side slope, and two neighboring described the
It is respectively set between first support pile 1, such as the 1st, 2 and the 3rd, 4 the first support pile 1 there are two being set between two support piles 2
Second support pile 2 is set, the both ends of the horizontal component of second support pile 2 are fixed on two the first supportings positioned at outside
In stake 1 and it is lower than the top of first support pile 1, the vertical portion of second support pile 2 downward and is higher than described the
The bottom end of one support pile 1, second support pile 2 is reinforced concrete pile, i.e., by reinforcing bar retaining wall, steel reinforcement cage and concrete structure
At concreting is used after the installation of, reinforcing bar retaining wall, steel reinforcement cage is hung after molding, perfusion pile body；
Multiple securing plates 3, are vertically arranged in foundation pit two sides side slope, and a securing plate 3 is located at one described second
The lower section of support pile 2, and the bottom end of second support pile 2 rides upon the top of the securing plate 3, the securing plate 3 is along base
The both ends of hole length direction are fixed on two first support piles 1 in outside, form the structure being integrally connected, and function is reinforced
Foundation pit sidewise restraint；
Multiple anchor poles 4, one end of the anchor pole 4 are fixed on a side surface of the securing plate 3 towards soil layer, and the other end is oblique
Soil layer is extended downwardly into, tilt angle can be 30~45 ° under horizontal direction, can be set to segmentation structure, the connection with securing plate 3
Point is not higher than 2/3 of securing plate 3 from bottom to top；
Multiple T shape third support piles 5, swing to setting, and are arranged at intervals on foundation pit two sides side slope, and two neighboring described
It is equipped with a third support pile 5 between two support piles 2, such as is respectively set between the 2nd, 3 and the 4th, 5 the first support pile 1
A third support pile 5 is set, the both ends of the horizontal component of the third support pile 5 are fixed on two the first supportings positioned at outside
In stake 1 and it is higher than the bottom end of first support pile 1, the vertical portion of second support pile 2 is upward and lower than described the
The top of one support pile 1, the third support pile 5 are reinforced concrete pile；
Multiple drain assemblies are arranged in foundation pit two sides side slope, and two drain assemblies can be arranged symmetrically in two first
Symmetrical two vacant places that support pile 1 and third support pile 5 are formed, the drain assembly includes interconnected multiple levels
Branch pipe 61, vertical general pipeline 62, multiple valves 63, multiple pressure gauges 64, pump 65 and water tank 66, multiple horizontal branch pipees 61 from up to
Lower distribution, soil layer is protruded into one end of the horizontal branch pipe 61, the other end is connected to the vertical general pipeline 62, the vertical general pipeline 62
Bottom end protrude into bottom of foundation ditch, top connects the water tank 66, valve 63 and pressure gauge 64 are installed on each horizontal branch pipe 61,
Pump 65 is mounted on the vertical general pipeline 62, can be by corresponding valve 63 when the pressure of some pressure gauge 64 display is excessive
It opens, opens simultaneously the pump 65 on vertical general pipeline 62, carry out release of drawing water, when pressure is normal, close corresponding 63 He of valve
Pump 65, stops pumping.
In the above-mentioned technical solutions, the first support pile 1, the second support pile 2, third support pile 5 are interval-staggered, supporting
Structure is safe and reliable, and soft layer spends with oneself to increase in a certain range to the moment of flexure that the first support pile 1 generates to be gradually reduced, the
One support pile 1 is inserted into the soft layer of similar muck soil and carries out supporting construction, total with the second support pile 2, third support pile 5
Same-action undertakes the vertical load of structure and the lateral moment of flexure of soil layer in foundation pit two sides side slope, and securing plate 3 reduces soil layer side slope
The destruction of bearing capacity, the diagonally-installed insertion soil layer of anchor pole 4 increase pressure-bearing effect, itself pulling force are reached soil layer depths, draining group
Part draws water pressure release, reduces impact of the soil layer underground water to supporting construction, entire supporting construction bearing capacity is strong, construction cost is low.
In another technical solution, further includes multiple 4th support piles 7, be vertically inserted into bottom of foundation ditch, and be located at
Discharge casing 66 contains lower section, multiple 4th support piles 7 with diamond shape array distribution and top it is concordant, to support the discharge casing 66 to contain,
4th support pile 7 is cement mixing method, multiple 4th support piles 7 with diamond shape array distribution, meet foundation bearing capacity and
Deformation requirements are inserted into the supporting course of bottom of foundation ditch, realize foundation stabilization, and cement mixing method makes soft layer scleroma improve ground
Intensity.
In another technical solution, first support pile 1, the 4th support pile 7 stake diameter be 0.5m, it is described
First support pile 1, the 4th support pile 7 protrude into foundation pit bottom or less at least 3m.First support pile 1, the 4th support pile 7
Stake diameter, and protrude into the length setting below of foundation pit bottom and meet foundation bearing capacity, deformation, foundation pit stability requirement, the two is same
A kind of support pile is convenient for site construction management, and only length is different, prepares before reducing unnecessary construction and work progress intersection is made
Industry.
In another technical solution, multiple first support pile, 1 equidistantly distributeds, two neighboring first support pile 1
Spacing be 2m, the distribution form of multiple first support piles 1 makes the second support pile 2 and third support pile 5 that T shape of the same race can be used
Supporting construction is convenient for site construction management.
In another technical solution, the lower section of the third support pile 5 is provided with steel mesh 8, and the steel mesh 8 is along base
The both ends of hole length direction are fixed on two first support piles 1 in outside, and steel is arranged below third support pile 5
Muscle net 8 forms supporting between stake.
In another technical solution, the steel mesh 8 is the single layer steel mesh 8 of grid spacing 200mm × 200mm,
The selection of concrete specification further increases whole support capacity.
Number of devices and treatment scale described herein are the explanations for simplifying the utility model.To the utility model
Application, modifications and variations will be readily apparent to persons skilled in the art.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (6)
1. a kind of supporting construction of soft layer foundation pit characterized by comprising
Multiple first support piles are arranged at intervals on foundation pit two sides side slope and are vertically inserted into bottom of foundation ditch, first supporting
Stake is cement mixing method；
Multiple the second support piles of T shape are arranged at intervals on foundation pit two sides side slope, are equipped between two neighboring second support pile
Two first support piles, the both ends of the horizontal component of second support pile are fixed on two the first supportings positioned at outside
Top in stake and lower than first support pile, the vertical portion of second support pile is downward and higher than described first
The bottom end of fender pile, second support pile are reinforced concrete pile；
Multiple securing plates, are vertically arranged in foundation pit two sides side slope, and a securing plate is located at second support pile
Lower section, and the bottom end of second support pile rides upon the top of the securing plate, and the securing plate is along foundation pit length direction
Both ends be fixed on two first support piles in outside；
Multiple anchor poles, one end of the anchor pole are fixed on a side surface of the securing plate towards soil layer, and the other end is stretched obliquely
Underground layer；
Multiple T shape third support piles are arranged at intervals on foundation pit two sides side slope, are equipped between two neighboring second support pile
One third support pile, the both ends of the horizontal component of the third support pile are fixed on two the first supportings positioned at outside
Bottom end in stake and higher than first support pile, the vertical portion of second support pile is upward and lower than described first
The top of fender pile, the third support pile are reinforced concrete pile；
Multiple drain assemblies, be arranged in foundation pit two sides side slope, the drain assembly include interconnected multiple horizontal branch pipees,
Vertical general pipeline, multiple valves, multiple pressure gauges, pump and water tank, multiple horizontal branch pipees are distributed from top to bottom, the horizontal branch pipe
One end protrude into soil layer, the other end is connected to the vertical general pipeline, the bottom end of the vertical general pipeline protrude into bottom of foundation ditch, top connect
The water tank is connect, valve and pressure gauge are installed on each horizontal branch pipe, pump is mounted on the vertical general pipeline.
2. the supporting construction of soft layer foundation pit as described in claim 1, which is characterized in that further include multiple 4th supportings
Stake is vertically inserted into bottom of foundation ditch, and is located at below Box-shaped Drainage Culvert, and multiple 4th support piles are with diamond shape array distribution and push up
Hold level with both hands together, to support the Box-shaped Drainage Culvert, the 4th support pile is cement mixing method.
3. the supporting construction of soft layer foundation pit as claimed in claim 2, which is characterized in that first support pile, described
The stake diameter of 4th support pile is 0.5m, and first support pile, the 4th support pile protrude into foundation pit bottom or less at least
3m。
4. the supporting construction of soft layer foundation pit as described in claim 1, which is characterized in that multiple first support piles are equidistant
Distribution, the spacing of two neighboring first support pile are 2m.
5. the supporting construction of soft layer foundation pit as described in claim 1, which is characterized in that the lower section of the third support pile
It is provided with steel mesh, the steel mesh is fixed on two first support piles positioned at outside along the both ends of foundation pit length direction
On.
6. the supporting construction of soft layer foundation pit as claimed in claim 5, which is characterized in that the steel mesh is grid spacing
The single layer steel mesh of 200mm × 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821404686.0U CN208717917U (en) | 2018-08-29 | 2018-08-29 | The supporting construction of soft layer foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821404686.0U CN208717917U (en) | 2018-08-29 | 2018-08-29 | The supporting construction of soft layer foundation pit |
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| Publication Number | Publication Date |
|---|---|
| CN208717917U true CN208717917U (en) | 2019-04-09 |
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|---|---|---|---|
| CN201821404686.0U Active CN208717917U (en) | 2018-08-29 | 2018-08-29 | The supporting construction of soft layer foundation pit |
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| Country | Link |
|---|---|
| CN (1) | CN208717917U (en) |
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2018
- 2018-08-29 CN CN201821404686.0U patent/CN208717917U/en active Active
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