CN205907683U - Composite set is used in construction of back pressure steel form dado in manual hole digging pile - Google Patents

Composite set is used in construction of back pressure steel form dado in manual hole digging pile Download PDF

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Publication number
CN205907683U
CN205907683U CN201620765084.2U CN201620765084U CN205907683U CN 205907683 U CN205907683 U CN 205907683U CN 201620765084 U CN201620765084 U CN 201620765084U CN 205907683 U CN205907683 U CN 205907683U
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China
Prior art keywords
steel
pressure
pile
construction
digging pile
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Active
Application number
CN201620765084.2U
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Chinese (zh)
Inventor
张俊兵
郑保才
王学峰
胡国伟
赵永锋
白昌富
魏良
孙伯乐
李达昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway No 3 Engineering Group Co Ltd
China Railway Third Survey and Design Institute Group Ltd
Third Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd
Original Assignee
China Railway No 3 Engineering Group Co Ltd
China Railway Third Survey and Design Institute Group Ltd
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Priority to CN201620765084.2U priority Critical patent/CN205907683U/en
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Publication of CN205907683U publication Critical patent/CN205907683U/en
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Abstract

The utility model belongs to manual hole digging pile's construction field, for under solving the water -rich stratum geological conditions, manual hole digging pile pass through sand bed, silty fine sand geological construction in -process gush sand, burst sand, the hole of collapsing, perpendicularity control scheduling problem, the utility model particularly relates to a composite set is used in construction of back pressure steel form dado in manual hole digging pile, including through vertical fixed angle steel fixture sliding seat's upper portion fixed I -shaped steel and lower part back pressure I -steel, being equipped with a plurality of jack between upper portion fixed I -shaped steel and the lower part back pressure I -steel, the connecting plate of buried bolt in advance that upper portion fixed I -shaped steel's both ends and bored pile steel protected on the section of thick bamboo is connected, and the bottom surface of lower part back pressure I -steel acts on the steel and protects the bobbin top face. The device be with the steel protect a section of thick bamboo in advance buried bolt board activity even, can satisfy on -the -spot along with digging along with a quick construction requirements, but utilize the jack back pressure to push up the steel fast and protect a section of thick bamboo, can solve the problem that existing railway operation circuit operation place is limited, the activity duration is limited that is close to.

Description

Back-pressure steel form panelling construction combination unit in artificial digging pile
Technical field
This utility model belongs to the construction field of artificial digging pile and in particular to back-pressure steel form in a kind of artificial digging pile Panelling construction combines the unit.
Background technology
Artificial digging pile have working place require little, construction technology is simple, speed of application is fast, low cost the features such as, In building pile foundation work progress, artificial digging pile becomes the first-selection for many engineering designs.Running into features as poor geologic condition, digging Using excavating one section of construction method pouring a section concrete retaining wall, the method for concrete guard wall is in manual digging pile construction for hole stake In be a kind of common, easy, effect preferable retaining wall mode.When running into drift sand, water rich strata condition, manual digging pile construction The middle construction that will be used for avoiding the steel pile casting of drift sand to be directly used in superstructure steel core concrete column, using the sinking steel in shoveling The mode of pipe carries out retaining wall.Also there is the circular steel pile casting of roll of steel plate using necessarily thick bottom, then adopt the side of static pressure or machinery Method is pressed into and penetrates soft layer, then excavated by manual work removes the soft layer in steel pile casting and continues according to a conventional method to excavate downwards, protects Wall completes until casting concrete.During being pressed into using static pressure and mechanical means, main employing is passed through in circular steel lid The method that steel pile casting static pressure is put in place by the method for sand pocket of symmetrically and evenly banking up on plate;Mechanical means mainly adopt excavator Scraper bowl be placed in the center compressed steel casing vertically downward of circular steel deck-plate, make steel pile casting vertical, slow sink, until design is deep Degree, the method for press-fitting of above two steel pile casting is higher to mechanical and place requirement.
In some special occasions, on the limited existing railway operation line of such as narrow space, activity duration, construction is artificial During caisson, the method for press-fitting of above-mentioned these steel pile casting, due to needing using big machinery or taking large-scale place etc., is applied Work method is often limited to be required it is impossible to meet.Degree control in steel pile casting is also the heavy difficult point of construction simultaneously, and it is often Need main equipment guarantee effect.
Content of the invention
Mainly for solving under water rich strata geological conditions, next-door neighbour's existing railway runs line, people to the purpose of this utility model Work caisson passes through layer of sand, in Extra-fine sand geology work progress, prevents stake holes from producing and gush sand, burst sand, collapse hole, degree control etc. Problem, to reach purpose quick, safe efficient, that high-quality carries out man-made digging pile mould-pipe it is ensured that construction safety, Jin Erti Combine the unit for back-pressure steel form panelling construction in a kind of artificial digging pile.
This utility model adopts the following technical scheme that
Back-pressure steel form panelling construction combination unit in a kind of artificial digging pile, including by vertically fixing angle steel interval The fixing I-steel in top connecting and bottom back-pressure I-steel, if be provided between the fixing I-steel in top and bottom back-pressure I-steel Dry jack, the two ends of the fixing I-steel in top are connected with the pre-embedded bolt connecting plate on caisson steel pile casting, bottom back-pressure work The bottom surface of word steel acts on steel pile casting top surface.
It is additionally provided with the lumps of wood backing plate of some support jacks between the fixing I-steel in described top and bottom back-pressure I-steel, The two ends of lumps of wood backing plate are connected with fixing angle steel respectively, and the upper and lower ends of fixing angle steel pass through lateral connection ear with top admittedly Determine I-steel, bottom back-pressure I-steel is flexibly connected.
Described lumps of wood backing plate is equal with the width of top fixation I-steel, bottom back-pressure I-steel.
The length of described fixing angle steel be more than maximum vertical between the fixing I-steel in top and bottom back-pressure I-steel away from From and at least grow 40cm.
The length of described bottom back-pressure I-steel is equal in magnitude with the external diameter of steel pile casting.
Described pre-embedded bolt connecting plate is located along the same line with the center of circle of steel pile casting.
This utility model has the advantages that
1st, the method that this utility model adopts jack back-pressure steel pile casting in caisson, can solve the problem that next-door neighbour's existing railway fortune Seek the problem limited by circuit homework place, limited by the activity duration, decrease main equipment and the input in large area operation place;
2nd, steel pile casting construction is carried out using this device, equipment is simple, easy accessibility, construction less investment;
3rd, this device is with the activity of steel pile casting pre-embedded bolt plate even easy accessibility, the fast jacking of achievable steel pile casting, energy Meet scene with digging with a rapid construction requirement, can effectively prevent from gushing sand, gush mud and the generation of collapse hole phenomenon, safety is good;
4th, the back-pressure construction operation place of steel pile casting is located in caisson, and the impact for surrounding enviroment is little;
5th, the equipment adopting in work progress is simple, draws materials extensively, easy to operate, easy processing.
Brief description
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the installation top view of top I-steel;
In figure: 1- concrete guard wall, 2- pre-embedded bolt connecting plate, 3- lumps of wood backing plate, 4- bottom back-pressure I-steel, 5- steel shield Cylinder, 6- fix angle steel, I-steel, 8- jack, 9- caisson are fixed in 7- top.
Specific embodiment
In conjunction with accompanying drawing, specific embodiment of the present utility model is described further:
1) overall technological scheme: before manual digging pile construction passes through the stratum such as layer of sand, Extra-fine sand, according to test pile situation and Geological mapping data, when bottom hole absolute altitude to such stratum certain altitude, (50cm, specifically can be true according to stake footpath and water content situation Fixed), stop boring and excavate.Steel by identical with drilled pile diameter for diameter, reasonable sheet metal thickness, highly (50~100cm) Steel pile casting is pressed into below sandy strata bottom surface (30cm, reference value) using backpressure device pressure by casing, then according to conventional construction Method is excavated;If sand layer thickness, more than a casing height, can save steel pile casting using every force feed one, excavate necessarily high Degree, reserved certain altitude, then carry out prefabricated steel pile casting force feed, circulation force feed, excavation, until be excavated to projected depth.
2) backpressure device is mainly by I-steel, big stroke jack, I-steel connecting plate, lumps of wood backing plate, fixing angle steel etc. Composition.In the one before concrete guard wall circulation colligation concrete guard wall reinforcing bar of steel pile casting of constructing, symmetrically pre- in place Bury the connecting plate of I-steel, prepared screw-bolt hole on junction steel plate, the center of circle of pre-buried I-steel connecting plate and stake is point-blank.
3) I-steel is divided into the fixing I-steel in top and two, bottom back-pressure I-steel.Its middle and upper part regular worker's word steel two ends It is welded with Bolt plate, can be connected with reserved Bolt plate;The length of the fixing I-steel in top can with pre-buried connecting plate even to meet It is connected in preferably.
4) back-pressure I-steel in bottom is identical with the model of the fixing I-steel in top, and length is equal in magnitude with steel pile casting external diameter. Bottom back-pressure I-steel directly acts on steel pile casting top surface.Synchronize jacking, Zhi Daoman using two same model jack Sufficient steel pile casting insertion depth requires;After the insertion depth of steel pile casting requires to exceed jack stroke range, using in upper and lower work Increase lumps of wood backing plate between word steel, till steel pile casting jacking depth meets and requires, the width of lumps of wood backing plate and I-steel width Degree is consistent, and lumps of wood backing plate carries out stablizing row control by being fixed on the angle steel of upper and lower I-steel both sides.Angle steel and upper and lower back-pressure work Word steel adopts lateral connection ear to connect it is ensured that angle steel can carry out vertical direction movement, angle steel model with the increase of lumps of wood backing plate Can be determined according to practical situation, length is can connect upper and lower I-steel, and considers that certain surplus (reference value 40cm) is advisable.
5) steel pile casting back-pressure is constructed to projected depth, removes lumps of wood backing plate and I-steel, practical for later cycles.

Claims (6)

1. in a kind of artificial digging pile back-pressure steel form panelling construction combination unit it is characterised in that: include by vertically solid Determine the fixing I-steel in top (7) and bottom back-pressure I-steel (4) that angle steel (6) interval connects, top fixation I-steel (7) and under It is provided with some jack (8), two ends and the caisson steel pile casting (5) of I-steel (7) is fixed on top between portion's back-pressure I-steel (4) On pre-embedded bolt connecting plate (2) connect, the bottom surface of bottom back-pressure I-steel (4) acts on steel pile casting (5) top surface.
2. in artificial digging pile according to claim 1 back-pressure steel form panelling construction combination unit it is characterised in that: It is additionally provided with the lumps of wood backing plate of some support jacks (8) between the fixing I-steel (7) in described top and bottom back-pressure I-steel (4) (3), the two ends of lumps of wood backing plate (3) are connected with fixing angle steel (6) respectively, and the upper and lower ends of fixing angle steel (6) are passed through laterally Engaging lug I-steel (7) fixing with top, bottom back-pressure I-steel (4) are flexibly connected.
3. in artificial digging pile according to claim 2 back-pressure steel form panelling construction combination unit it is characterised in that: Described lumps of wood backing plate (3) is equal with the width of top fixation I-steel (7), bottom back-pressure I-steel (4).
4. in artificial digging pile according to claim 3 back-pressure steel form panelling construction combination unit it is characterised in that: The length of described fixing angle steel (6) be more than maximum vertical between the fixing I-steel in top (7) and bottom back-pressure I-steel (4) away from From and at least grow 40cm.
5. in artificial digging pile according to claim 4 back-pressure steel form panelling construction combination unit it is characterised in that: The length of described bottom back-pressure I-steel (4) is equal in magnitude with the external diameter of steel pile casting (5).
6. in artificial digging pile according to claim 5 back-pressure steel form panelling construction combination unit it is characterised in that: Described pre-embedded bolt connecting plate (2) is located along the same line with the center of circle of steel pile casting (5).
CN201620765084.2U 2016-07-20 2016-07-20 Composite set is used in construction of back pressure steel form dado in manual hole digging pile Active CN205907683U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620765084.2U CN205907683U (en) 2016-07-20 2016-07-20 Composite set is used in construction of back pressure steel form dado in manual hole digging pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620765084.2U CN205907683U (en) 2016-07-20 2016-07-20 Composite set is used in construction of back pressure steel form dado in manual hole digging pile

Publications (1)

Publication Number Publication Date
CN205907683U true CN205907683U (en) 2017-01-25

Family

ID=57805786

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620765084.2U Active CN205907683U (en) 2016-07-20 2016-07-20 Composite set is used in construction of back pressure steel form dado in manual hole digging pile

Country Status (1)

Country Link
CN (1) CN205907683U (en)

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