CN207944460U - A kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System - Google Patents
A kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System Download PDFInfo
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- CN207944460U CN207944460U CN201721425750.9U CN201721425750U CN207944460U CN 207944460 U CN207944460 U CN 207944460U CN 201721425750 U CN201721425750 U CN 201721425750U CN 207944460 U CN207944460 U CN 207944460U
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- wing
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- shaped cross
- web
- cambered surface
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Abstract
A kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System, including I-shaped cross-section bored concrete pile and cement mixing method, I-shaped cross-section bored concrete pile includes the preceding edge of a wing, the rear edge of a wing and web, the preceding edge of a wing and the rear edge of a wing are along foundation pit side wall direction, the web is perpendicular to foundation pit side wall direction, it is connected by concaved circular cambered surface in front side between the preceding edge of a wing and web, is connected by concaved circular cambered surface in rear side between the rear edge of a wing and web；Cement mixing method is round stake, and round stake forms support system by being engaged the end-enclosed on the two neighboring preceding edge of a wing, and the front end face of concaved circular cambered surface, the side end face on the preceding edge of a wing and the preceding edge of a wing forms underground water around flow path in front side.The utility model is under conditions of same concrete material dosage; I-shaped cross-section bored concrete pile can obtain the cross sectional moment of inertia for being several times as much as circular cross-section; it is hereby achieved that being several times as much as the bending stiffness of traditional round stake; significantly improve the bending stiffness of building enclosure; the deformation for reducing support system is conducive to protect surrounding enviroment.
Description
Technical field
The utility model belongs to foundation field, and especially a kind of I-shaped cross-section stake and concrete stake close branch in combination
Watch box system.
Background technology
Current deep-foundation pit engineering is mostly based on Deformation control, the change of the section bending stiffness of building enclosure to support system
Shape amount is affected, therefore is also an important factor for influencing project cost.Campshed is to apply a kind of more building enclosure at present,
It is limited to construction equipment and construction technology, the generally circular in cross section section bored concrete pile of campshed.By the knowledge of the mechanics of materials it is found that same cut
Under the conditions of the area of face, namely under the conditions of same concrete material dosage, I-shaped cross-section can be obtained far above circular cross-section
Section bending stiffness, it is seen then that there are apparent waste of material using cast-in-place pile with round cross-sec tion.
It is higher for level of ground water, the base pit engineering of water proof is needed, is arranged usually behind Row Piles Supporting Structure individual
Closed water seal curtain, water seal curtain are generally cement mixing method, rotary churning pile etc..When individually closed water-stop curtain is set,
It needs to be arranged along foundation pit periphery integrally closed, project cost is higher and occupied ground.To reduce water-stop curtain cost, engineering circles are made
Many beneficial trials occur, using the building enclosure form of cast-in-place pile with round cross-sec tion occlusion cement earth pile, collecting sealing in the recent period
Earth-retaining is integrated, and significantly reduces project cost.
Utility model content
The purpose of this utility model is to provide a kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System, to solve
The technical problem of certainly current retaining design section bending stiffness deficiency will solve the duration caused by independent closed water seal curtain
Long, high cost technical problem will also solve the technologies such as high, the slurry coat method pollution environment of underground continuous wall-enclosure structure cost and ask
Topic..
To achieve the above object, the utility model adopts the following technical solution：
A kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System, including alternate the I-shaped being connected
Tee section bored concrete pile and the front and back cement mixing method that a row is at least set,
The I-shaped cross-section bored concrete pile includes close to the preceding edge of a wing of the sides Ying Keng, before the rear edge of a wing and connection for meeting native side
The web on the edge of a wing and the rear edge of a wing, the preceding edge of a wing and the rear edge of a wing are along foundation pit side wall direction, and the web is perpendicular to foundation pit side wall
Direction,
It is connected by concaved circular cambered surface in front side between the preceding edge of a wing and web, by rear side between the rear edge of a wing and web
Concaved circular cambered surface connects；The cement mixing method is round stake, the end-enclosed that round stake passes through the two neighboring preceding edge of a wing of occlusion
Support system is formed,
The starting point of concaved circular cambered surface is the rear angle point on the preceding edge of a wing in the front side, and the terminal of concaved circular cambered surface is abdomen in the front side
The middle part of plate, the starting point of concaved circular cambered surface is the middle part of web in the rear side, and the terminal of concaved circular cambered surface is front wing in the rear side
The preceding angle point of edge,
Concaved circular cambered surface, the rear angle point on the preceding edge of a wing, the side end face on the preceding edge of a wing, the preceding angle point on the preceding edge of a wing and the preceding edge of a wing along front side
Front end face be sequentially formed underground water around flow path.
Concaved circular cambered surface is identical with the radian of concaved circular cambered surface in rear side in the front side.
The preceding edge of a wing is identical as the thickness on the rear edge of a wing, the two it is of same size or different.
The cement mixing method is two rows or more, and the preceding edge of a wing is engaged with the cement mixing method near the sides Ying Keng.
Steel reinforcement cage in the I-shaped cross-section bored concrete pile includes longitudinal reinforcement, preceding edge of a wing stirrup, rear edge of a wing stirrup and abdomen
Plate stirrup,
The web hooping penetrates through preceding edge of a wing stirrup and rear edge of a wing stirrup, web hooping and forward and backward edge of a wing intersection location
First vertical muscle and the second vertical muscle need to be bound respectively in the front side of corresponding edge of a wing stirrup.
It is also banded with tension rib between longitudinal reinforcement in the middle part of web hooping.
The utility model has the characteristics that and advantageous effect compared with prior art：
The I-shaped cross-section bored concrete pile that the utility model is proposed goes along with sb. to guard him form with cement earth pile use in conjunction, by scene
The I-shaped cross-section support pile of pile is perfused instead of traditional cast-in-place pile with round cross-sec tion, in the item of same concrete material dosage
Under part, I-shaped cross-section bored concrete pile can obtain the cross sectional moment of inertia for being several times as much as circular cross-section, it is hereby achieved that being several times as much as passing
The bending stiffness of system circle stake, significantly improves the bending stiffness of building enclosure, reduces the deformation of support system, is conducive to protect periphery
Environment.
Supporting construction of the utility model by I-shaped cross-section bored concrete pile as base pit engineering, with typical round section stake phase
Than Reinforcement can be intensively arranged in the tensile region far from section main shaft by I-shaped cross-section, be conducive to reinforcement property and sent out
It waves, improves section anti-bending bearing capacity, save material utilization amount；Space between support pile is closed using cement mixing method and forms envelope
Enclosed retaining design need not separately set individual closed water-stop curtain, significantly reduce project cost.
The utility model leads to compared with existing circular section bored concrete pile occlusion cement earth pile forms closing retaining design at present
Edge of a wing overlap joint occlusion cement mixing method is crossed, longer around flow path at occlusion, water-stagnating effect is more preferable.
The utility model is the bending stiffness for striving for bigger, improves the shape of I-shaped cross-section, significantly improves supporting
The overall stiffness of structural system.Under same support system Deformation control requirement condition, significantly improving for building enclosure rigidity is
Reduce support stiffness, increase support level spacing, increase and support vertical spacing, reduces support road number etc. and create condition, to
Material can be saved, facilitate construction, shorten the construction period and significantly reduce project cost etc..
The form of going along with sb. to guard him of the I-shaped cross-section bored concrete pile that the utility model is proposed and cement earth pile use in conjunction, it is I-shaped
It is circular sliding slopes between the web and the edge of a wing of section bored concrete pile, is conducive to the drilling construction of double-jacket tube method.During immersed tube
The measure that repeatedly lifting inner sleeve unloads soil may be used, so as to be substantially reduced stake plug effect, the resistance during reduction immersed tube
Power is conducive to drilling construction.
Description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings.
Fig. 1 is I-shaped cross-section support pile occlusion cement earth pile shield retaining design schematic diagram.
Fig. 2 is the section form of the first I-shaped cross-section bored concrete pile.
Fig. 3 is the section form of second of I-shaped cross-section bored concrete pile.
Fig. 4 is the section form of the third I-shaped cross-section bored concrete pile.
Fig. 5 is the sectional reinforcement of I-shaped cross-section bored concrete pile.
Reference numeral：The edge of a wing, 13- webs, the front sides 14- after the I-shaped cross-sections 1- bored concrete pile, the preceding edges of a wing 11-, 12-
Concaved circular cambered surface, the side end faces 16-, 17- front end faces, 2- cement mixing methods, the longitudinal directions 3- steel on rear side of interior concaved circular cambered surface, 15-
Muscle, 3a- first indulges muscle, 3b- second and indulges edge of a wing stirrup, 6- web hoopings, 7- drawknots after the preceding edge of a wing stirrup of muscle, 4-, 5-
Muscle.
Specific implementation mode
Embodiment is referring to shown in Fig. 1-5, a kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System, including
Every the I-shaped cross-section bored concrete pile 1 and the front and back cement mixing method 2 that a row is at least arranged alternately being connected.A is to meet in Fig. 1
Side is cheated, B is to meet native side.
The I-shaped cross-section bored concrete pile 1 includes close to the preceding edge of a wing 11 of the sides Ying Keng, close to 12 and of the rear edge of a wing for meeting native side
The web 13 on the preceding edge of a wing 11 and the rear edge of a wing 12 is connected, the preceding edge of a wing 11 and the rear edge of a wing 12 are along foundation pit side wall direction, the abdomen
Plate 13 is perpendicular to foundation pit side wall direction.
It is connected by concaved circular cambered surface in front side 14 between the preceding edge of a wing 11 and web 13, between the rear edge of a wing 12 and web 13
It is connected by concaved circular cambered surface in rear side 15；The cement mixing method 2 is round stake, and round stake is by being engaged two neighboring front wing
The end-enclosed of edge 11 forms support system.
The starting point of concaved circular cambered surface 14 is the rear angle point on the preceding edge of a wing 11 in the front side, the end of concaved circular cambered surface 14 in the front side
Point is the middle part of web 13, and the starting point of concaved circular cambered surface 15 is the middle part of web 13 in the rear side, concaved circular cambered surface in the rear side
15 terminal is the preceding angle point on the preceding edge of a wing 11.
Concaved circular cambered surface 14, the rear angle point on the preceding edge of a wing, the side end face 16 on the preceding edge of a wing, the preceding angle point on the preceding edge of a wing and preceding along front side
The front end face 17 on the edge of a wing is sequentially formed underground water around flow path.
Concaved circular cambered surface 14 is identical with the radian of concaved circular cambered surface in rear side 15 in the front side.The preceding edge of a wing 11 and the rear edge of a wing
12 thickness is identical, the two it is of same size or different.Referring to shown in Fig. 2-4, according to the size on the preceding edge of a wing 11 and the rear edge of a wing 12
Difference, the first preceding edge of a wing 11 and the rear edge of a wing 12 are identical, and second of preceding edge of a wing 11 is less than the rear edge of a wing 12, the third preceding edge of a wing 11 is big
In the rear edge of a wing 12.
The cement mixing method is two rows or more, and the preceding edge of a wing is engaged with the cement mixing method near the sides Ying Keng.Institute
It includes longitudinal reinforcement 3, preceding edge of a wing stirrup 4, rear edge of a wing stirrup 5 and web hooping 6 to state the steel reinforcement cage in the bored concrete pile of I-shaped cross-section.
The web hooping 6 penetrates through preceding edge of a wing stirrup 4 and rear edge of a wing stirrup 5, web hooping and forward and backward edge of a wing intersection location
The first vertical vertical muscle 3b of muscle 3a and second need to bind respectively in the front side of corresponding edge of a wing stirrup.
Tension rib 7 is also banded between longitudinal reinforcement in the middle part of web hooping.When retaining design is constructed, constructing
At beginning position, the cement mixing method for I-shaped cross-section support pile both sides of first constructing, before cement earth pile condensation hardening, water of constructing
I-shaped cross-section bored concrete pile among soil stake, then construct successively cement mixing method, I-shaped cross-section bored concrete pile, most end form
At closed retaining design.Cement mixing method part is excavated together with pit earthwork in Excavation Process.
The work progress of the utility model is as follows：
Step 1: according to the hydrogeologic condition in proposed place, excavation of foundation pit depth etc., is calculated by designing, determine work
The parameters such as cross section geometry, arrangement of reinforcement and the level interval of shaped sections bored concrete pile；Determine the form of cement mixing method（Stake
Diameter, lap width, columns, number of rows etc.）, construction equipment and construction technology.
Step 2: along foundation pit periphery surveying setting-out, the position of retaining design is identified.
Step 3: in construction retaining design original position, the soil cement for I-shaped cross-section bored concrete pile both sides of first constructing stirs
Mix stake.
Step 4: before cement mixing method condensation hardening, by between the two-tube heavy method construction cement mixing method that shakes
I-shaped cross-section bored concrete pile.Hollow double-jacket tube is sunk to by vibration hammer vibration inside and outside being adapted with I-shaped cross-section bored concrete pile
Then predetermined depth in stratum extracts inner sleeve soil taking hole forming, outer tube persists retaining wall in stratum, notable for stake plug effect,
The measure that repeatedly lifting inner sleeve unloads soil may be used in the larger stratum of immersed tube resistance during immersed tube.After the completion of stake holes,
Place I-shaped steel reinforcement cage, placing concrete, while placing concrete from pull out outer tube pile, the rising of outer tube is pulled out speed and is wanted
It is adapted with the rate of flooding of concrete, ensures that distance of the outer tube low side away from concreting face is not less than 0.5m.It is required that work
The preceding edge of a wing of shaped sections bored concrete pile is engaged with the cement mixing method first constructed near foundation pit side soil cement pile body overlap joint,
Length of action is not less than 15cm per side.
Step 5: the cement mixing method at construction the next position.
Step 6: the I-shaped cross-section bored concrete pile between construction mixing pile.
Step 7: step 5 and step 6 are repeated in, until whole retaining designs are completed in construction.
Claims (6)
1. a kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System, including alternate be connected it is I-shaped
Section bored concrete pile（1）With the front and back cement mixing method that a row is at least arranged（2）, it is characterised in that：
The I-shaped cross-section bored concrete pile（1）Include close to the preceding edge of a wing of the sides Ying Keng（11）, close to meeting the rear edge of a wing of native side（12）
With the preceding edge of a wing of connection（11）With the rear edge of a wing（12）Web（13）, the preceding edge of a wing（11）With the rear edge of a wing（12）Along foundation pit side wall
Direction, the web（13）Perpendicular to foundation pit side wall direction,
The preceding edge of a wing（11）With web（13）Between pass through concaved circular cambered surface in front side（14）Connection, the rear edge of a wing（12）With web
（13）Between pass through concaved circular cambered surface in rear side（15）Connection；The cement mixing method（2）For round stake, round stake passes through cement
Stirring is engaged the two neighboring preceding edge of a wing（11）End-enclosed formed support system,
Concaved circular cambered surface in the front side（14）Starting point be the preceding edge of a wing（11）Rear angle point, concaved circular cambered surface in the front side（14）'s
Terminal is web（13）Middle part, concaved circular cambered surface in the rear side（15）Starting point be web（13）Middle part, in the rear side
Concaved circular cambered surface（15）Terminal be the preceding edge of a wing（11）Preceding angle point,
The concaved circular cambered surface along front side（14）, the rear angle point on the preceding edge of a wing, the preceding edge of a wing side end face（16）, the preceding angle point on the preceding edge of a wing and preceding
The front end face on the edge of a wing（17）Underground water is sequentially formed around flow path.
2. I-shaped cross-section support pile according to claim 1 and cement earth pile Composite Supporting System, it is characterised in that：Institute
State concaved circular cambered surface in front side（14）With concaved circular cambered surface in rear side（15）Radian it is identical.
3. I-shaped cross-section support pile according to claim 1 or 2 and cement earth pile Composite Supporting System, feature exist
In：The preceding edge of a wing（11）With the rear edge of a wing（12）Thickness it is identical, the two it is of same size or different.
4. I-shaped cross-section support pile according to claim 3 and cement earth pile Composite Supporting System, it is characterised in that：Institute
It is two rows or more to state cement mixing method, and the preceding edge of a wing is engaged with the cement mixing method near the sides Ying Keng.
5. the I-shaped cross-section support pile according to claim 1,2 or 4 any one and cement earth pile Composite Supporting System,
It is characterized in that：Steel reinforcement cage in the I-shaped cross-section bored concrete pile includes longitudinal reinforcement（3）, preceding edge of a wing stirrup（4）, the rear edge of a wing
Stirrup（5）And web hooping（6）, the first vertical muscle of web hooping and forward and backward edge of a wing intersection location（3a）With the second vertical muscle（3b）
It need to bind respectively in the front side of corresponding edge of a wing stirrup.
6. I-shaped cross-section support pile according to claim 5 and cement earth pile Composite Supporting System, it is characterised in that：Position
It is also banded with tension rib between longitudinal reinforcement in the middle part of the web hooping（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425750.9U CN207944460U (en) | 2017-10-31 | 2017-10-31 | A kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425750.9U CN207944460U (en) | 2017-10-31 | 2017-10-31 | A kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207944460U true CN207944460U (en) | 2018-10-09 |
Family
ID=63703547
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721425750.9U Expired - Fee Related CN207944460U (en) | 2017-10-31 | 2017-10-31 | A kind of I-shaped cross-section support pile and cement earth pile Composite Supporting System |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207944460U (en) |
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2017
- 2017-10-31 CN CN201721425750.9U patent/CN207944460U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 Termination date: 20201031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |