CN207862945U - Mixing pile inner sleeve beats the foundation pit enclosure structure of quincunx bored concrete pile - Google Patents
Mixing pile inner sleeve beats the foundation pit enclosure structure of quincunx bored concrete pile Download PDFInfo
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- CN207862945U CN207862945U CN201820058468.XU CN201820058468U CN207862945U CN 207862945 U CN207862945 U CN 207862945U CN 201820058468 U CN201820058468 U CN 201820058468U CN 207862945 U CN207862945 U CN 207862945U
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Abstract
The utility model is related to the foundation pit enclosure structures that a kind of mixing pile inner sleeve beats quincunx bored concrete pile, belong to foundation pit enclosure structure technical field.The foundation pit enclosure structure includes crisscross Double shaft stirring stake group and lateral Double shaft stirring stake, and several bored concrete piles being arranged in Double shaft stirring stake group, and the bored concrete pile in the two neighboring Double shaft stirring stake group is staggered.The foundation pit enclosure structure, crisscross cement mixing pile framing is formed in the weak soil of foundation pit surrounding, makes weak soil scleroma at the high-quality ground with globality, water stability and some strength, then set beats bored concrete pile wherein, the construction quality of bored concrete pile is controllable, and foundation pit enclosure structure is safe and reliable；Moreover, the foundation pit enclosure structure can reduce or without using horizontally-supported, accelerate earth excavation speed, shorten the construction period, accomplish not use or use on a small quantity horizontally-supported, have the advantages that economize on resources, environment influence it is small.
Description
Technical field
The utility model is related to the foundation pit enclosure structures that a kind of mixing pile inner sleeve beats quincunx bored concrete pile, belong to foundation pit enclosure
Technical field of structures.
Background technology
The design of current soft soil foundation Large and Deep Foundation Pit structure, that construction method still applies mechanically traditional depth substantially is little
Medium and small foundation pit method, that is, use diaphram wall or campshed earth-retaining, while being arranged that multiple tracks is horizontally-supported or anchor pole.Weak soil
The temporary structures such as area's a large amount of diaphram wall of Large and Deep Foundation Pit engineering generally use (or campshed) and horizontally-supported or anchor pole
As retaining structure.When foundation pit width is smaller, shaped steel can be used as horizontally-supported, realize horizontally-supported recycle；Base
When hole width is larger, generally use armored concrete is horizontally-supported.Since foundation pit area is huge, it is high that horizontally-supported cost is set
(cost of per pass horizontal reinforcement concrete support is up to millions of members or even up to ten million members), long construction period, remove it is inconvenient,
Earth excavation and underground engineering structure construction are inconvenient, and the disposition of solid waste such as concrete largely removed and recycling are tired
Difficulty need to occupy a large amount of heap and abandon place etc., waste a large amount of manpower, financial resources, material resources and social resources.
And the building enclosure of foundation pit passes through machine drilling, steel pipe soil compaction frequently with cast-in-situ bored pile form in engineering site
Or manpower the means such as excavates and forms stake holes in foundation soil, and place in it steel reinforcement cage, concrete perfusion and make.In reality
In engineer application, because concrete is perfused in muddy water, concrete Quality Control difficulty is big, time-consuming, and speed of fulfiling hole is slow,
Body refuse pollutes environment.In addition cast-in-situ bored pile often will appear the pore-formings problems such as collapse hole, undergauge, stake holes deflection.
Utility model content
Soft soil foundation Large and Deep Foundation Pit structure is using concrete Quality Control difficulty is big existing for cast-in-situ bored pile, takes a lot of work
The problems such as time-consuming, speed of fulfiling hole is slow, body refuse pollution environment and armored concrete horizontally-supported cost height, are torn open long construction period
The problems such as except inconvenient, earth excavation and underground engineering structure construction is inconvenient and there are a large amount of solid waste, the utility model carries
A kind of mixing pile inner sleeve has been supplied to beat the foundation pit enclosure structure of quincunx bored concrete pile, filling pile construction is quality controllable, foundation pit enclosure knot
Structure is safe and reliable, meanwhile, using in mixing pile set beat the building enclosure of bored concrete pile, it is possible to reduce or propped up without using horizontal
Support is accelerated earth excavation speed, is shortened the construction period, accomplish not use or use on a small quantity it is horizontally-supported, have economize on resources, environment shadow
Ring small advantage.
In order to solve the above technical problems, the utility model includes following technical solution：
A kind of mixing pile inner sleeve beats the foundation pit enclosure structure of quincunx bored concrete pile, including：
The Double shaft stirring stake group of at least two parallel intervals setting, the Double shaft stirring stake group include that at least two rows are mutually stung
Longitudinal Double shaft stirring stake of conjunction；
Several rows are arranged at intervals at the lateral Double shaft stirring stake between two adjacent Double shaft stirring stake groups；And
Several bored concrete piles, the bored concrete pile are set in the Double shaft stirring stake group, and the two neighboring twin shaft stirs
The bored concrete pile mixed in a group is staggered；
Wherein, longitudinal Double shaft stirring stake and lateral Double shaft stirring stake are cement mixing pile.
Preferably, the foundation pit enclosure structure further includes the concrete layer that bears down on one, and the concrete layer that bears down on one is located at described double
At the top of axis mixing pile group and bored concrete pile, the junction for bearing down on one concrete layer and the bored concrete pile is provided with pile cover.
Preferably, it is less than close to the elevation of bottom for the Double shaft stirring stake group for meeting pitted surface and meets the described of pitted surface far from described
The elevation of bottom of Double shaft stirring stake group.
Preferably, elevation of bottom of the bored concrete pile elevation of bottom less than the Double shaft stirring stake group at place.
Preferably, the diameter of the bored concrete pile is less than the diameter of longitudinal Double shaft stirring stake.
In conclusion mixing pile inner sleeve provided by the utility model beats the foundation pit enclosure structure of quincunx bored concrete pile, setting
There is multigroup Double shaft stirring stake group and each group of Double shaft stirring stake group is including at least two rows of longitudinal Double shaft stirring stakes and in two adjacent groups
Lateral Double shaft stirring stake is set between Double shaft stirring stake group, and longitudinal Double shaft stirring stake, lateral Double shaft stirring stake are all made of cement
Mixing pile makes weak soil scleroma at whole to form crisscross cement mixing pile framing in the weak soil of foundation pit surrounding
The high-quality ground of body, water stability and some strength, then set beats bored concrete pile wherein, and filling pile construction is quality controllable, and
The rigidity and anti-shear ability of foundation pit enclosure structure are improved, it can be by the Deformation control of foundation pit in the range of requiring, and simultaneously
Take into account earth-retaining and water stopping function.Moreover, foundation pit enclosure structure beats the form of quincunx bored concrete pile using mixing pile inner sleeve, can support
Anti- larger lateral pressure of soft clay, it is possible to reduce using or without using horizontally-supported, accelerate earth excavation speed, shorten the construction period,
Have the advantages that economize on resources, environment influence it is small.In addition, the coagulation that bears down on one is arranged at the top of the Double shaft stirring stake group and bored concrete pile
Soil layer can make resource be utilized effectively as builder's road, and the space that can save the area.
Description of the drawings
Fig. 1 beats the knot of the foundation pit enclosure structure of quincunx bored concrete pile for the mixing pile inner sleeve in one embodiment of the utility model
Structure schematic diagram；
Fig. 2 be Fig. 1 in along the sectional view of A-A；
Fig. 3 is the sectional view along B-B in Fig. 1.
Figure label is as follows：
Excavation of foundation pit face 10；Foundation pit enclosure structure 100；Double shaft stirring stake group 110；Longitudinal Double shaft stirring stake 111；It is laterally double
Axis mixing pile 112；Bored concrete pile 120；Bear down on one concrete layer 130；Pile cover 140.
Specific implementation mode
Quincunx bored concrete pile is beaten to mixing pile inner sleeve provided by the utility model below in conjunction with the drawings and specific embodiments
Foundation pit enclosure structure is described in further detail.In conjunction with following explanation and claims, the advantages of the utility model and feature
It will become apparent from.It should be noted that attached drawing is all made of very simplified form and uses non-accurate ratio, only to it is convenient,
Lucidly aid in illustrating the purpose of the utility model embodiment.
It should be noted that it is longitudinally, laterally consistent with the direction in attached drawing in embodiment, not to the limit of technical solution
System.
Embodiment one
Shown in Fig. 1 to Fig. 3, a kind of mixing pile inner sleeve provided in this embodiment beats the base of quincunx bored concrete pile 120
Pit enclosure structure 100 includes the Double shaft stirring stake group 110 of two parallel intervals setting, the twin shaft at excavation of foundation pit face 10
Mixing pile group 110 includes longitudinal Double shaft stirring stake 111 that three rows are mutually twisted, the Double shaft stirring stake group far from excavation of foundation pit face 10
110 include two rows of longitudinal Double shaft stirring stakes 111 being mutually twisted, and several rows are provided between two Double shaft stirring stake groups 110
Spaced transverse direction Double shaft stirring stake 112.Wherein, longitudinal Double shaft stirring stake 111 and lateral Double shaft stirring stake 112 are stirred for cement
Mix stake, after cement and weak soil are sufficiently stirred by Mixing Machine, cement as curing agent make weak soil harden at globality,
The high-quality ground of water stability and some strength, by changing the additive ratio of cement, to adjust the intensity of cement mixing pile.
Several bored concrete piles 120 are arranged in interval in two rows of Double shaft stirring stake groups 110, and bored concrete pile 120 is set in cement mixing pile, are perfused
The construction quality of stake 120 is controllable, phenomena such as being less prone to collapse hole, undergauge, stake holes deflection.And two neighboring Double shaft stirring stake group
Bored concrete pile 120 in 110 is staggered, to make the bored concrete pile 120 in multiple Double shaft stirring stake groups 110 form quincunx knot
Structure can enhance the globality and stability of foundation pit enclosure structure 100, can effectively stop the soil body sliding of foundation pit edge.
Preferred embodiment is, as shown in Figures 2 and 3, in the 120 top setting of Double shaft stirring stake group 110 and bored concrete pile
There is the concrete layer 130 that bears down on one to be used as builder's road, as an example, the concrete layer 130 that bears down on one may be used C25 concretings and
At when builder's road has higher load-bearing requirements, framework of steel reinforcement can also be arranged in concrete.Preferably, bear down on one concrete layer
130 are provided with pile cover 140 with the junction of bored concrete pile 120, the active force for the concrete layer 130 that bears down on one can be effectively transferred to filling
Note stake 120.
Preferred embodiment is, as shown in Figures 2 and 3, close to the elevation of bottom for the Double shaft stirring stake group 110 for meeting pitted surface
Less than the elevation of bottom far from the Double shaft stirring stake group 110 for meeting pitted surface.That is, close to the Double shaft stirring stake group for meeting pitted surface
110 buried depth is deeper, in excavation of foundation pit, is conducive to the monolithic stability of building enclosure.Due to far from the Double shaft stirring for meeting pitted surface
Stake group 110 apart from excavation of foundation pit face 10 relatively far away from, can be under the premise of ensureing 100 overall stability of foundation pit enclosure structure
With relatively shallower length of embedment, to accelerate speed of application.
Preferred embodiment is that as shown in Figures 2 and 3,120 elevation of bottom of bored concrete pile is less than the Double shaft stirring stake at place
The elevation of bottom of group 110.That is, the buried depth of cement mixing pile is less than the buried depth of bored concrete pile 120, the bottom of bored concrete pile 120
The soil body lateral pressure being subject to is relatively small, and it is little to safety effects to be not provided with cement mixing pile, therefore can reduce cement mixing
The buried depth of stake, accelerates construction progress.
Preferred embodiment is that the diameter of bored concrete pile 120 is less than the diameter of longitudinal Double shaft stirring stake 111, makes bored concrete pile
120 surroundings have the cement mixing pile of adequate thickness, it is ensured that the construction quality of bored concrete pile 120 improves the whole of building enclosure
Body security performance.
In conclusion mixing pile inner sleeve provided by the utility model beats the foundation pit enclosure structure of quincunx bored concrete pile 120
100, it includes at least two rows of longitudinal Double shaft stirrings to be provided with multigroup Double shaft stirring stake group 110 and each group of Double shaft stirring stake group 110
Simultaneously lateral Double shaft stirring stake 112 is arranged in stake 111 between two adjacent groups Double shaft stirring stake group 110, and longitudinal Double shaft stirring stake
111, lateral Double shaft stirring stake 112 is all made of cement mixing pile, to form crisscross water in the weak soil of foundation pit surrounding
Mud stirs pile framing, makes weak soil scleroma at the high-quality ground with globality, water stability and some strength, then covers wherein
Bored concrete pile 120 is beaten, 120 construction quality of bored concrete pile is controllable, and improves the rigidity and anti-shear ability of foundation pit enclosure structure 100,
Can be by the Deformation control of foundation pit in the range of requiring, and foundation pit enclosure structure 100 takes into account earth-retaining and water stopping function simultaneously.And
And foundation pit enclosure structure 100 beats the form of quincunx bored concrete pile 120 using mixing pile inner sleeve, can resist larger weak soil side
Pressure, it is possible to reduce using or without using horizontally-supported, accelerate earth excavation speed, shorten the construction period, have economize on resources, ring
Border influences small advantage.It is applied in addition, the concrete layer 130 that bears down on one is arranged at the top of Double shaft stirring stake group 110 and bored concrete pile 120 and is used as
Work sidewalk can make resource be utilized effectively, and the space that can save the area.
Embodiment two
The utility model additionally provides the construction method of the foundation pit enclosure structure 100 in a kind of embodiment one, with reference to
Fig. 1 to Fig. 3 is further described the construction method, which specifically comprises the following steps：
S1. according to the position of the location determination Double shaft stirring stake group 110 in excavation of foundation pit face 10, then determine that lateral twin shaft stirs
Mix the spacing of stake 112.10 setting-out of excavation of foundation pit face is first carried out, and carries out Double shaft stirring stake group on the basis of excavation of foundation pit face 10
110 setting-outs, and lateral 112 setting-out of Double shaft stirring stake.
S2. it on the basis of excavation of foundation pit face 10, constructs successively Double shaft stirring stake group 110, laterally double by approximately principle after first remote
Axis mixing pile 112, and adjacent two rows of longitudinal Double shaft stirring stakes 111 of the same Double shaft stirring stake group 110 is made to be mutually twisted, make cross
It is mutually twisted to Double shaft stirring stake 112 with the longitudinal Double shaft stirring stake 111 being connected.
Double shaft stirring stake group 110 includes at least two rows of longitudinal Double shaft stirring stakes 111, multiple cement mixing piles of each row it
Between be engaged successively, be also mutually twisted between longitudinal Double shaft stirring stake 111 of adjacent two rows；Moreover, the lateral twin shaft of each row stirs
Mix and be mutually twisted between multiple cement mixing piles of stake 112, the lateral Double shaft stirring stake 112 of each row end respectively with both ends
Longitudinal Double shaft stirring stake 111 is mutually twisted.So set, foundation pit enclosure structure 100 has better globality and stability.
S3. the position of bored concrete pile 120 is determined, and using the sequence of construction of interval pile, in 110 inner sleeve of Double shaft stirring stake group
Bored concrete pile 120 is beaten, and the bored concrete pile 120 in two adjacent Double shaft stirring stake groups 110 is made to shift to install.It is put in bored concrete pile 120
It after the completion of sample, drilled, transfer steel reinforcement cage and casting concrete.When bored concrete pile 120 is constructed, it should use to jump and play construction, protect
Adjacent two bored concrete piles 120 construction certain interval of time is demonstrate,proved, for example is spaced 24 hours, reduces the influence to facing stake to the greatest extent.
Preferred embodiment is, further includes following steps after step s 3：
S4. levelling construction is carried out in Double shaft stirring stake group 110 and 120 top of bored concrete pile, and is opened up at 120 top of bored concrete pile
Slot, then casting concrete, forms the concrete layer 130 that bears down on one, and the concrete in the slot at 120 top of bored concrete pile forms pile cover
140.Bearing down on one concrete layer 130 can be as the interim sidewalk in construction, the label of the concrete of use and the concrete layer that bears down on one
130 thickness is determined by design load-bearing.Pile cover 140 is set at 120 top of bored concrete pile, the concrete layer 130 that can will bear down on one is made
Firmly effectively it is transferred to bored concrete pile 120, reasonable stress, power transmission smooth-going, stable structure.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (5)
1. a kind of mixing pile inner sleeve beats the foundation pit enclosure structure of quincunx bored concrete pile, which is characterized in that including：
The Double shaft stirring stake group of at least two parallel intervals setting, the Double shaft stirring stake group include at least two rows of be mutually twisted
Longitudinal Double shaft stirring stake；
Several rows are arranged at intervals at the lateral Double shaft stirring stake between two adjacent Double shaft stirring stake groups；And
Several bored concrete piles, the bored concrete pile are set in the Double shaft stirring stake group, and the two neighboring Double shaft stirring stake
The bored concrete pile in group is staggered；
Wherein, longitudinal Double shaft stirring stake and lateral Double shaft stirring stake are cement mixing pile.
2. foundation pit enclosure structure as described in claim 1, which is characterized in that the foundation pit enclosure structure further includes the coagulation that bears down on one
Soil layer, the concrete layer that bears down on one are located at the top of the Double shaft stirring stake group and bored concrete pile, it is described bear down on one concrete layer with it is described
The junction of bored concrete pile is provided with pile cover.
3. foundation pit enclosure structure as described in claim 1, which is characterized in that close to the Double shaft stirring stake group for meeting pitted surface
Elevation of bottom is less than the elevation of bottom far from the Double shaft stirring stake group for meeting pitted surface.
4. foundation pit enclosure structure as claimed in claim 3, which is characterized in that the bored concrete pile elevation of bottom is less than the institute at place
State the elevation of bottom of Double shaft stirring stake group.
5. foundation pit enclosure structure as described in claim 1, which is characterized in that it is double that the diameter of the bored concrete pile is less than the longitudinal direction
The diameter of axis mixing pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820058468.XU CN207862945U (en) | 2018-01-15 | 2018-01-15 | Mixing pile inner sleeve beats the foundation pit enclosure structure of quincunx bored concrete pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820058468.XU CN207862945U (en) | 2018-01-15 | 2018-01-15 | Mixing pile inner sleeve beats the foundation pit enclosure structure of quincunx bored concrete pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035362A (en) * | 2018-01-15 | 2018-05-15 | 上海建工二建集团有限公司 | Mixing pile inner sleeve beats the foundation pit enclosure structure and construction method of quincunx bored concrete pile |
| CN113756315A (en) * | 2021-08-25 | 2021-12-07 | 杭州市市政工程集团有限公司 | Construction method of foundation pit supporting structure spanning important building structures below |
-
2018
- 2018-01-15 CN CN201820058468.XU patent/CN207862945U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035362A (en) * | 2018-01-15 | 2018-05-15 | 上海建工二建集团有限公司 | Mixing pile inner sleeve beats the foundation pit enclosure structure and construction method of quincunx bored concrete pile |
| CN113756315A (en) * | 2021-08-25 | 2021-12-07 | 杭州市市政工程集团有限公司 | Construction method of foundation pit supporting structure spanning important building structures below |
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