CN209636804U - Orientation constantly regulates and controls the isolation pile of displacement - Google Patents

Orientation constantly regulates and controls the isolation pile of displacement Download PDF

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Publication number
CN209636804U
CN209636804U CN201920024561.3U CN201920024561U CN209636804U CN 209636804 U CN209636804 U CN 209636804U CN 201920024561 U CN201920024561 U CN 201920024561U CN 209636804 U CN209636804 U CN 209636804U
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CN
China
Prior art keywords
prefabricated
jack
displacement
unit
cambered plate
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Expired - Fee Related
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CN201920024561.3U
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Chinese (zh)
Inventor
陈斌
郑明飞
宋春霞
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Ningbo University of Technology
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Ningbo University of Technology
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Priority to CN201920024561.3U priority Critical patent/CN209636804U/en
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Publication of CN209636804U publication Critical patent/CN209636804U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses the isolation piles that a kind of orientation constantly regulates and controls displacement, including prefabricated pile, the prefabricated pile to be divided at least two prefabricated unit from top to bottom, is equipped with dividing layer between 2 adjacent prefabricated units in the up-down direction;Several jack are uniformly fixed on the circumferential surface of the prefabricated unit, the telescopic shaft of jack extends outwardly;Cambered plate is fixed on the telescopic shaft of the jack, the axial line of cambered plate and the axial line of prefabricated unit are overlapped;The outside of the cambered plate is respectively and fixedly provided with earth pressure gauge;And the equal signal of earth pressure gauge is connected to a control unit;Jack signal associated control unit.The utility model has the advantages that: the displacement of the deep soil formed when can preferably control excavation of foundation pit.

Description

Orientation constantly regulates and controls the isolation pile of displacement
Technical field
The present invention relates to technical field of building construction, and the isolation pile of displacement is constantly regulated and controled more particularly, to a kind of orientation.
Background technique
Unloading effect when excavation of foundation pit surrounding enviroment can be generated it is strong influence, the outer existing structure (building) in hole build object can be The displacement into hole is generated with the outer active region soil body in hole under the Unloading Effect of the soil body in cheating.Especially in coastal weak soil Area, the deep big foundation pit influence that this deformation is formed caused by excavating are more significant.Isolation pile is as control foundation pit or constructing tunnel On one of the common method that neighbouring structures influence, in such a way that foundation pit or shield driving tunnel neighbour side set isolation pile, Soil deformation transmitting outside caused hole in digging process can be effectively reduced, and then effectively controls and excavates off-load to neighbouring earth's surface The deformation of building or underground structure influences.
But at present traditional isolation pile for the protection of deep soil on the outside of foundation pit remain some shortcomings it Place.Firstly, the principle of isolation pile be by stiffness by itself separate soil mass displacement at the deep layer, but its there is also insufficient rigidities, thus It is insufficient for the control requirement for cheating outer soil mass displacement at the deep layer.Secondly, isolation pile may be due to the displacement of deep soil And whole movement occurs.Isolation pile in Excavation Process cannot regulation constantly, can only by it is initially set itself Rigidity provides certain resistance effect, can not achieve flexibly and effectively the displacement that outer deep soil is cheated in constantly control, for certain The case where Deformation control high requirement, is not able to satisfy.Therefore, the displacement that man-hour requirement constantly controls deep soil is applied.
Summary of the invention
The object of the present invention is to provide a kind of orient constantly to regulate and control the isolation pile of displacement, it has and can preferably control base The characteristics of displacement for the deep soil that hole is formed when excavating.The invention also discloses a kind of methods that orientation constantly regulates and controls displacement.
The technical scheme adopted by the invention is that:
Orientation constantly regulates and controls the isolation pile of displacement, including prefabricated pile,
The prefabricated pile is divided at least two prefabricated unit from top to bottom, in the up-down direction 2 adjacent prefabricated units it Between be equipped with dividing layer;
Uniformly it is fixed with several jack on the circumferential surface of the prefabricated unit, the telescopic shaft of jack is towards extension It stretches;
Cambered plate, the axial line of cambered plate and the axial line weight of prefabricated unit are fixed on the telescopic shaft of the jack It closes;
The outside of the cambered plate is respectively and fixedly provided with earth pressure gauge;
And
The equal signal of earth pressure gauge is connected to a control unit;
Jack signal associated control unit.
The outside of the cambered plate is surrounded by rubber case.
Rolling-ball unit is equipped on the same prefabricated unit between adjacent cambered plate.
The sheet metal of the fixing end for welding jack is embedded on the circumferential surface of the prefabricated unit.
It is equipped in the middle part of the prefabricated unit in vertical reinforcing bar preformed hole.
The method that orientation constantly regulates and controls displacement, the method constantly regulate and control the isolation pile of displacement using the orientation, should Method includes:
A, determine that orientation constantly regulates and controls the burial place of the isolation pile of displacement according to foundation pit external demand environment to be protected;
B, before foundation pit is not constructed, the isolation pile that orientation constantly regulates and controls displacement is squeezed into the deep soil of selected location, It is transferred to the pressure size under different depth when control unit pressure information acquires initial, different location according to earth pressure gauge, and The design of pressure of measurement before foundation pit is not excavated is controlling value;
C, when excavation of foundation pit, the outer soil body of foundation pit can be caused to generate corresponding stress and displacement, thus earth pressure gauge There is corresponding variation in the numerical value reflected, and the real-time pressure value of measurement is transferred to control unit, control unit by earth pressure gauge The pressure value of measurement and controlling value are compared, the case where then control unit compares according to pressure, control unit is to corresponding Jack issue telescope signal, after jack is flexible, corresponding cambered plate is mobile, until soil pressure is maintained at controlling value.
After excavation of foundation pit, the isolation pile that orientation constantly regulates and controls displacement is fetched, then filling concrete will take rapidly The hole for orienting the isolation pile formation for constantly regulating and controlling displacement out is closely knit.
The burial place is using single, double or quincuncial Pile arrangement.
The isolation pile and method that orientation of the invention constantly regulates and controls displacement be advantageously: can preferably control base The displacement for the deep soil that hole is formed when excavating.The present invention separates soil mass displacement at the deep layer by isolation pile, and utilizes small-sized very heavy It pushes up to make up the part soil mass displacement at the deep layer of isolation pile insufficient rigidity generation, can effectively control due to caused by excavation of foundation pit External soil mass displacement at the deep layer.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the perspective view that the orientation of the embodiment of the present invention constantly regulates and controls the isolation pile of displacement;
Fig. 2 is the perspective view of dividing layer of the invention;
Fig. 3 and Fig. 4 is the action schematic diagram that the orientation of the embodiment of the present invention constantly regulates and controls the method for displacement.
In figure:
11, prefabricated unit, 12, dividing layer, 13, reinforcing bar preformed hole;
20, jack;
30, cambered plate;
40, earth pressure gauge;
50, control unit;
60, rubber case;
70, rolling-ball unit.
Specific embodiment
Embodiment, as shown in figures 1 to 4: orientation constantly regulates and controls the isolation pile of displacement, including being usually prepared by concrete Prefabricated pile.
It is specific:
Prefabricated pile is divided at least two prefabricated unit 11 from top to bottom, in the up-down direction 2 adjacent prefabricated units 11 it Between be equipped with dividing layer 12.In general, the whole high 6000mm of prefabricated pile, the height of each prefabricated unit 11 is 1000mm, to have There are 6 prefabricated units 11, and the diameter of prefabricated unit 11 is according to circumstances usually 200-600mm.It should be noted that segmentation Layer 12 can be the round steel ring for being arranged and being fixed on the engaging portion of adjacent prefabricated unit 11, and adjacent prefabricated unit 11 is simultaneously Do not separate.That is, the middle part of the circular steel plate is equipped with the through-hole passed through for prefabricated pile.
Several jack 20 are uniformly fixed on the circumferential surface of prefabricated unit 11, the telescopic shaft of jack 20 is outwardly Extend.In general, the jack 20 on the circumferential surface of each prefabricated unit 11 is 6, and the extension of the telescopic shaft of jack 20 Line is vertically compared to the vertical axial line of prefabricated pile.
Cambered plate 30, the axial line of cambered plate 30 and the axial line of prefabricated unit 11 are fixed on the telescopic shaft of jack 20 It is overlapped.In the present embodiment, each cambered plate 30 is 60 ° of cambered surfaces.That is, in the initial state, around the same prefabricated unit Cambered plate 30 outside 11 forms a closed cylindrical shape, and the cylindrical shape and the prefabricated pile coaxial inner conductor.
The outside of cambered plate 30 is respectively and fixedly provided with earth pressure gauge 40.Earth pressure gauge 40 also can according to circumstances be arranged multiple.
It is more specific:
The equal signal of earth pressure gauge 40 is connected to a control unit 50;20 signal associated control unit 50 of jack.That is, soil pressure The pressure value for the deep soil that power meter 40 can be detected is transferred to corresponding control unit 50, and control unit 50 is according to calculating As a result the working condition of corresponding jack 20 is controlled.It is set in this way, the isolation pile that the orientation constantly regulates and controls displacement is inserted in advance Fixed position, when excavation of foundation pit, if the earthwork in somewhere is caused to change, the pressure value of the soil in somewhere can be beyond original Setting controlling value, the telescopic shaft of the jack 20 at this can stretch out and the cambered plate of the flexible axis connection of the jack 20 30 protrude outward, even if prefabricated pile is deformed, also can preferably offset the variation of the earthwork, protect the Environmental security of foundation pit periphery.
Optimization:
The outside of cambered plate 30 is surrounded by 60 (not shown in figure 1) of rubber case.That is, when 60 entirety of rubber case is enclosed in the orientation When regulation displacement isolation pile outside.In this way, this cambered plate 30 and adjacent thereto cambered surface prominent in some cambered plate 30 It will form gap between plate 30, rubber case 60 can avoid soil and enter in gap.
Rolling-ball unit 70 is equipped on the same prefabricated unit 11 between adjacent cambered plate 30.For example, rolling-ball unit 70 is wrapped 2 plastic plates being parallel to each other are included, and are equipped with several balls between plastic plate.In this way, not will receive when cambered plate 30 is mobile The influence of side cambered plate 30, then movement is more smooth.
The sheet metal that the fixing end for welding jack 20 is embedded on the circumferential surface of prefabricated unit 11 (does not show on figure Out).In this way, convenient for fixed jack 20.
The middle part of prefabricated unit 11 is equipped in vertical reinforcing bar preformed hole 13.
When specifically used, the method that orientation constantly regulates and controls displacement can constantly regulate and control displacement using orientation above-mentioned Isolation pile.This method comprises:
A, determine that orientation constantly regulates and controls the burial place of the isolation pile of displacement according to foundation pit external demand environment to be protected.It is embedded It position can be using single, double or quincuncial Pile arrangement.
B, before foundation pit is not constructed, the isolation pile that orientation constantly regulates and controls displacement is squeezed into the deep soil of selected location. Pressure when acquiring initial according to the pressure information that earth pressure gauge 40 is transferred to control unit 50 under different depth, different location is big It is small, and the design of pressure of the measurement before foundation pit is not excavated is controlling value.
C, when excavation of foundation pit, the outer soil body of foundation pit can be caused to generate corresponding stress and displacement, thus earth pressure gauge There is corresponding variation in the numerical value of the pressure value of 40 soil reflected.The real-time pressure value of measurement is transferred to phase by earth pressure gauge 40 The control unit 50 answered.The controlling value of the pressure value of measurement and setting is compared by control unit 50, then control unit 50 The case where being compared according to pressure, control unit 50 issue telescope signal to corresponding jack 20.That is, the pressure generally reflected Value is higher than the controlling value of setting, then it represents that the soil layer at this changes, and control unit 50 is the telescopic shaft for controlling jack 20 It stretches out.After jack 20 stretches out, corresponding cambered plate 30 is prominent, until soil pressure is maintained at controlling value.In this way, counteracting pre- Influence caused by column rigidity processed is insufficient.
D, after excavation of foundation pit, the isolation pile that orientation constantly regulates and controls displacement is fetched, then filling concrete will rapidly It is closely knit to take out the hole formed when orientation constantly regulates and controls the isolation pile of displacement.
In conclusion the present invention separates soil mass displacement at the deep layer by isolation pile, and it is rigid using jack to make up isolation pile The part soil mass displacement at the deep layer for generation that degree is insufficient can effectively control the external deep soil position due to caused by excavation of foundation pit It moves.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations Technical field, be included within the scope of the present invention.

Claims (5)

1. orientation constantly regulates and controls the isolation pile of displacement, including prefabricated pile, it is characterised in that:
The prefabricated pile is divided at least two prefabricated unit (11) from top to bottom, in the up-down direction 2 adjacent prefabricated units (11) dividing layer (12) are equipped between;
It is uniformly fixed with several jack (20) on the circumferential surface of the prefabricated unit (11), the telescopic shaft of jack (20) It extends outwardly;
It is fixed with cambered plate (30) on the telescopic shaft of the jack (20), the axial line and prefabricated unit (11) of cambered plate (30) Axial line be overlapped;
The outside of the cambered plate (30) is respectively and fixedly provided with earth pressure gauge (40);
And
Earth pressure gauge (40) signal is connected to a control unit (50);
Jack (20) signal associated control unit (50).
2. according to claim 1 orient the isolation pile for constantly regulating and controlling displacement, it is characterised in that: the cambered plate (30) Outside is surrounded by rubber case (60).
3. according to claim 1 orient the isolation pile for constantly regulating and controlling displacement, it is characterised in that: the same prefabricated list Rolling-ball unit (70) are equipped between adjacent cambered plate (30) on first (11).
4. according to claim 1 orient the isolation pile for constantly regulating and controlling displacement, it is characterised in that: the prefabricated unit (11) Circumferential surface on be embedded with the sheet metal of fixing end for welding jack (20).
5. according to claim 1 orient the isolation pile for constantly regulating and controlling displacement, it is characterised in that: the prefabricated unit (11) Middle part be equipped in vertical reinforcing bar preformed hole (13).
CN201920024561.3U 2019-01-07 2019-01-07 Orientation constantly regulates and controls the isolation pile of displacement Expired - Fee Related CN209636804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920024561.3U CN209636804U (en) 2019-01-07 2019-01-07 Orientation constantly regulates and controls the isolation pile of displacement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920024561.3U CN209636804U (en) 2019-01-07 2019-01-07 Orientation constantly regulates and controls the isolation pile of displacement

Publications (1)

Publication Number Publication Date
CN209636804U true CN209636804U (en) 2019-11-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109653208A (en) * 2019-01-07 2019-04-19 宁波工程学院 Orientation constantly regulates and controls the isolation pile and method of displacement
CN113718788A (en) * 2021-09-07 2021-11-30 广东永基建筑基础股份有限公司 Composite foundation pit supporting pile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109653208A (en) * 2019-01-07 2019-04-19 宁波工程学院 Orientation constantly regulates and controls the isolation pile and method of displacement
CN113718788A (en) * 2021-09-07 2021-11-30 广东永基建筑基础股份有限公司 Composite foundation pit supporting pile

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Granted publication date: 20191115