CN218148481U

CN218148481U - Temporary support structure for trestle pile and trestle pile group

Info

Publication number: CN218148481U
Application number: CN202221994584.5U
Authority: CN
Inventors: 张敬弦; 陈传磊; 吴健; 常树芳; 马水英; 李传威; 冉富吕; 廖焱强; 符传育
Original assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-12-27
Anticipated expiration: 2032-07-29

Abstract

The utility model provides a temporary trestle pile supporting structure and a trestle pile group, which has the technical scheme that the temporary trestle pile supporting structure comprises a foundation pile vertically placed in a pile foundation hole, and also comprises an auxiliary pile which is used for digging a temporary pile hole arranged on a riverbed, filling anchoring materials in the temporary pile hole and positioning the foundation pile in the pile foundation hole; the auxiliary piles are embedded in the anchoring materials and are mutually fixed with the foundation piles; this scheme can realize simplifying the interim bearing structure of a pier bridge stake, reduces the operation engineering volume and demolishs the degree of difficulty to improve the efficiency of construction.

Description

Temporary support structure for trestle pile and trestle pile group

Technical Field

The utility model relates to a landing stage stake construction field especially relates to a temporary bearing structure of landing stage stake and landing stage stake crowd.

Background

The existing trestle steel pipe pile foundation construction method for coping with shallow covering layers and bare rock surfaces mainly comprises a pile internal pile planting method and a lattice stool pile, but the two foundation pile construction methods have respective advantages and disadvantages, the construction of the stool pile is relatively simple, the problems of poor connection strength with a riverbed, weak stability and the like exist, the foundation pile in the pile planting method is connected with the riverbed and has better connection strength, but the pipe pile above the riverbed has anchoring concrete, the part of the pipe pile is extremely difficult to remove underwater, basically cannot be recovered, and has low recovery utilization rate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a landing stage stake temporary support structure and landing stage stake crowd realize simplifying the temporary support structure of landing stage stake, reduce the operation engineering volume and demolish the degree of difficulty to improve the efficiency of construction.

In order to achieve the above object, the present invention provides the following technical solutions:

the temporary trestle pile supporting structure comprises a foundation pile vertically placed in a pile foundation hole, a temporary pile hole dug on a riverbed, an anchoring material filled in the temporary pile hole and an auxiliary pile for positioning the foundation pile in the pile foundation hole; the auxiliary piles are buried in the anchoring materials and fixed with the foundation piles.

The method further comprises a guide pipe for extending to a position between the side wall of the pile foundation hole and the outer wall of the foundation pile to pour the anchoring layer.

Further provided, the device also comprises a temporary support; the auxiliary piles and the foundation piles are connected with each other through the temporary supports, and the guide pipes are erected on the temporary supports.

The foundation piles are provided with an even number, and every two foundation piles are symmetrically arranged by taking the auxiliary pile as a center; the temporary supports are provided with a plurality of temporary supports, and every two symmetrically arranged foundation piles are connected with the auxiliary piles through the corresponding temporary supports.

Further, the temporary supports extend along straight lines and are connected to the two corresponding foundation piles respectively.

And further arranging a plurality of temporary supports which are all positioned at the same horizontal height and are connected in an intersecting way.

The temporary support comprises two supporting beams arranged at intervals and a pipeline fixing frame erected between the two supporting beams; the auxiliary piles and the foundation piles are positioned between the two support beams and are connected with the support beams on the two sides; the guide pipe is connected with the pipeline fixing frame.

The pipeline fixing frame comprises two cross beams which are arranged at intervals; the end parts of the two cross beams are respectively connected with the corresponding supporting beams, and the guide pipe is positioned between the two cross beams and is connected with the cross beams on two sides.

The temporary trestle pile supporting structure is further arranged and comprises the temporary trestle pile supporting structure, the temporary pile hole is dug in the riverbed, and the foundation pile is fixed in the pile hole.

Further, an anchoring layer is poured around the position between the side wall of the pile foundation hole and the outer wall of the foundation pile.

Compared with the prior art, the utility model discloses a scheme has following advantage:

1. the utility model relates to an among the interim bearing structure of landing stage stake, only need dig on the riverbed and establish the interim stake hole, it is downthehole at the interim stake with supplementary stake cube, anchor materials such as grit are backfilled afterwards, fill the interim stake hole until anchor material, supplementary stake passes through anchor material temporary anchoring on the riverbed, the foundation pile of putting immediately on the pile foundation hole after that is fixed each other with supplementary stake, it is downthehole at the interim stake to accomplish the foundation pile location, concrete provides high-quality construction basis under water for follow-up pouring, realize simplifying the interim bearing structure of landing stage stake, reduce the operation engineering volume and demolish the degree of difficulty, thereby improve the efficiency of construction.

2. The utility model relates to an among the interim bearing structure of landing stage stake, through setting up the pipe, utilize the pipe with concrete water conservancy diversion under water to the lateral wall in interim stake hole and the outer wall spare of foundation pile between, make the concrete under water fill in interim stake hole to at the downthehole anchor layer that solidifies of stake, avoid the anchor layer to pour the position more than the riverbed, realize accurate pouring.

3. The utility model relates to an among the interim bearing structure of landing stage stake, supplementary stake are arranged on the central point between two foundation piles puts, and two foundation piles are fixed a position in the pile foundation that corresponds downthehole respectively through common interim support, reduce steel materials and construction work volume, make things convenient for the worker to make a round trip to walk at two foundation piles simultaneously, facilitate for the construction.

4. The utility model relates to an among the interim bearing structure of landing stage stake, a plurality of temporary support erects on same level, and crossing connection, and different temporary support interconnect forms the pavement that switches on each other, and the workman can follow supplementary stake department, walks to arbitrary foundation pile department, provides construction convenience for watering in succession and build the stake foundation hole.

5. The utility model relates to a landing stage pile crowd in, pile foundation hole and interim stake hole interval dig establish on the river bed, and supplementary stake is fixed downtheholely at the interim stake through the anchor material, and the foundation pile is mutually fixed with supplementary stake to fix in the pile foundation downthehole, supplementary stake and a plurality of foundation piles form landing stage pile crowd jointly, provide the support for the follow-up of landing stage is built and is under construction.

6. The utility model relates to an among the landing stage pile crowd, through pouring concrete under water in the pile foundation hole, concrete under water fills between the outer wall of foundation pile and the lateral wall in pile foundation hole, and concrete concreties into the anchoring layer back under water, fixes the foundation pile downthehole at the pile foundation.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a vertical sectional view of a temporary trestle pile supporting structure according to an embodiment of the present invention;

fig. 2 is a top view of a temporary trestle pile supporting structure in an embodiment of the present invention;

fig. 3 is a partial enlarged view of a in fig. 2 according to the present invention;

fig. 4 is a schematic diagram illustrating the operation of a drilling machine in the construction process of the simple foundation pile according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating movement of a drilling machine in a construction process of a simple foundation pile according to an embodiment of the present invention;

fig. 6 is a process flow diagram of a construction process of a simple foundation pile according to an embodiment of the present invention;

fig. 7 is a sectional elevation view of a simple foundation pile structure according to an embodiment of the present invention;

fig. 8 is a plan view of a simple foundation pile structure according to an embodiment of the present invention.

Reference numerals: 1. foundation piles; 2. a river bed; 3. an anchoring layer; 4. a temporary support; 5. auxiliary piles; 6. a conduit; 7. anchoring the material; 8. barge; 9. passing through a ship plate; 10. a drilling machine; 11. river banks;

21. pile foundation holes; 22. a temporary pile hole; 41. a support beam; 42. a cross beam;

61. a hopper; 81. a weight box; 82. positioning the pile; 83. and (4) an anchor chain.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1-3, the utility model provides a trestle pile temporary support structure, which comprises a foundation pile 1 vertically placed in a pile foundation hole 21, a temporary pile hole 22 dug on a riverbed 2, an anchoring material 7 filled in the temporary pile hole 22, and an auxiliary pile 5 for positioning the foundation pile 1 in the pile foundation hole 21; the auxiliary pile 5 is embedded in the anchoring material 7 and fixed with the foundation pile 1.

In practical application, only need dig on riverbed 2 and establish interim stake hole 22, with auxiliary pile 5 cube in interim stake hole 22, backfill afterwards anchor material 7 such as grit, until anchor material 7 fills up interim stake hole 22, auxiliary pile 5 is through anchor material 7 temporary anchoring on riverbed 2, then foundation pile 1 and auxiliary pile 5 reciprocal anchorage of putting immediately on pile foundation hole 21, accomplish foundation pile 1 and fix a position in interim stake hole 22, provide high-quality construction basis for follow-up concreting under water, realize simplifying the temporary support structure of stack bridge pile, reduce the operation engineering volume and demolish the degree of difficulty, thereby improve the efficiency of construction.

Further improved, the pile foundation comprises a conduit 6 for pouring the anchoring layer 3, which extends between the side wall of the pile foundation hole 21 and the outer wall of the foundation pile 1.

Through setting up pipe 6, utilize pipe 6 with concrete water conservancy diversion under water to between the lateral wall in interim stake hole 22 and the outer wall spare of foundation pile 1, make the concrete fill in interim stake hole 22 under water to at the downthehole anchor layer 3 that becomes of stake, avoid anchor layer 3 to pour the position more than 2 at the riverbed, realize accurate pouring.

In actual pouring, the distance between the lower port of the guide pipe 6 and the upper port of the pile foundation hole 21 is at least two meters, and after underwater concrete is poured, the depth of the lower port of the guide pipe 6 embedded into the underwater concrete is guaranteed to be not less than 2m, and the pouring quality of the underwater concrete is guaranteed.

After the underwater concrete is poured, the guide pipe 6 is dismantled, after the underwater concrete is solidified into the anchoring layer 3, the foundation pile 1 is fixed in the pile foundation hole 21, wherein before the high end is dismantled, the depth of the underwater concrete around the foundation pile 1 needs to be measured by using a measuring rope, and the depth of the lower port of the guide pipe 6 embedded in the underwater concrete is confirmed to be more than two meters.

In a further improvement, the device further comprises a temporary support 4; the auxiliary piles 5 and the foundation piles 1 are connected with each other through temporary supports 4, and the guide pipes 6 are erected on the temporary supports 4.

The auxiliary pile 5 and the foundation pile 1 are connected in a mode of building the temporary support 4, so that a walkway for workers to walk is formed between the auxiliary pile 5 and the foundation pile 1, and the workers can conveniently exchange construction operation between the auxiliary pile 5 and the foundation pile 1.

In addition, the auxiliary pile 5 and the foundation pile 1 can be respectively sleeved with a pile casing, and the two pile casings are connected in a positioning mode through cross braces.

Referring to fig. 2, in some embodiments, the foundation piles 1 are provided with an even number, and each two foundation piles 1 are symmetrically arranged with the auxiliary pile 5 as the center; the number of the temporary supports 4 is several, and every two symmetrically arranged foundation piles 1 are connected with the auxiliary piles 5 through the corresponding one of the temporary supports 4.

The auxiliary pile 5 is arranged on the central position between the two foundation piles 1, the two foundation piles 1 are respectively positioned in the corresponding pile foundation holes 21 through a common temporary support 4, the steel material consumption and the construction engineering amount are reduced, and meanwhile, the auxiliary pile facilitates the worker to walk back and forth at the two foundation piles 1, so that convenience is brought to construction.

In a specific implementation, the temporary supports 4 extend along a straight line and are respectively connected to two corresponding foundation piles 1.

Temporary support 4 sets up both ends respectively on the foundation pile 1 that corresponds through the structure that the straight line extends, and the middle part is connected on supplementary stake 5, and it is low to build the degree of difficulty, and the steel quantity is few, and has better joint strength and location effect.

As a further improvement of the embodiment, a plurality of the temporary supports 4 are all at the same level and are connected in an intersecting manner.

A plurality of temporary support 4 erects on same level, and crossing connection, and different temporary support 4 interconnect forms the pavement that switches on each other, and the workman can follow auxiliary pile 5 department, walks to arbitrary foundation pile 1 department, provides construction convenience for watering in succession and builds a pile foundation hole 21.

Referring to fig. 3, the temporary support 4 has a specific structure that the temporary support 4 includes two support beams 41 arranged at intervals, and a pipe fixing frame spanned between the two support beams 41; the auxiliary piles 5 and the foundation piles 1 are located between the two support beams 41 and are connected with the support beams 41 on the two sides; the guide pipe 6 is connected with the pipeline fixing frame.

The temporary support 4 further includes a cross brace located between the two support beams 41 for a worker to step on and walk, the cross brace is arranged along the length intervals of the support beams 41 and is connected with the support beams 41 on both sides, and the cross brace is arranged between the auxiliary pile 5 and the foundation pile 1.

The specific structure of the pipeline fixing frame is that the pipeline fixing frame comprises two cross beams 42 which are arranged at intervals; the ends of the two cross beams 42 are respectively connected with the corresponding support beams 41, and the conduit 6 is located between the two cross beams 42 and connected with the cross beams 42 at two sides.

The two cross beams 42 are erected on the two support beams 41 in a staggered arrangement, the cross beams 42 on both sides are arranged on the opposite sides of the conduit 6 and connected with the conduit 6, and the cross beams 42 on both sides clamp the conduit 6 to fix the conduit 6 on the temporary support 4.

This technical scheme can provide a landing stage stake crowd, include riverbed 2, dig the stake foundation hole 21 of establishing on riverbed 2, still include as above the interim bearing structure of landing stage stake, dig on the riverbed 2 and be equipped with interim stake hole 22, foundation pile 1 is fixed in the stake foundation hole 21.

Pile foundation holes 21 and temporary pile holes 22 are dug at intervals on the riverbed 2, auxiliary piles 5 are fixed in the temporary pile holes 22 through anchoring materials 7, foundation piles 1 and auxiliary piles 5 are fixed to each other and fixed in the pile foundation holes 21, the auxiliary piles 5 and a plurality of foundation piles 1 jointly form a trestle pile group, and support is provided for subsequent construction of the trestle.

Before pile foundation hole 21 is at installation foundation pile 1, need adopt to dig soon to having crept into to design standard height pile foundation hole 21 and dig by the secondary, the sediment that drills in clearance backward flow to pile foundation hole 21, guarantee foundation pile 1 can insert to predetermineeing the degree of depth, and in concrete operation, after the sediment was bored in the clearance, the pile foundation inserted pile foundation hole 21, and the terminal surface of the lower extreme of foundation pile 1 supports tightly on the bottom in pile foundation hole 21.

In a specific implementation, an anchoring layer 3 is cast around between the side wall of the pile foundation hole 21 and the outer wall of the foundation pile 1.

Through pouring the underwater concrete in pile foundation hole 21, the underwater concrete fills between the outer wall of foundation pile 1 and the lateral wall of pile foundation hole 21, and after the underwater concrete concreties into anchoring layer 3, anchoring layer 3 fixes foundation pile 1 in pile foundation hole 21, alright demolish temporary support 4 and pull out auxiliary pile 5.

As shown in fig. 6, the utility model provides a construction process of simple foundation pile, including following construction steps:

arranging temporary pile holes 22 and pile foundation holes 21 for digging on the river bed 2;

inserting an auxiliary pile 5 into the temporary pile hole 22, and backfilling the anchoring material 7 into the temporary pile hole 22;

the foundation pile 1 is inserted into the pile foundation hole 21 and fixed with the auxiliary pile 5;

and pouring the anchoring layer 3 in the pile foundation hole 21, filling the anchoring layer 3 between the side wall of the pile foundation hole 21 and the outer wall of the foundation pile 1 in a surrounding manner, and fixing the foundation pile 1 in the pile foundation hole 21.

Fig. 6 is combined with fig. 1-3, and the implementation manner is that only a temporary pile hole 22 needs to be dug on a river bed 2, an auxiliary pile 5 is cubed in the temporary pile hole 22, then, anchoring materials 7 such as gravel and the like are backfilled until the temporary pile hole 22 is filled with the anchoring materials 7, the auxiliary pile 5 is temporarily anchored on the river bed 2 through the anchoring materials 7, then, a foundation pile 1 vertically placed on a pile foundation hole 21 and a connecting auxiliary pile 5 are mutually fixed, the foundation pile 1 is positioned in the temporary pile hole 22, a high-quality construction foundation is provided for the subsequent pouring of underwater concrete, the trestle pile is quickly formed only through three main processes of drilling, pile erecting, concrete pouring and the like, the trestle pile has the characteristics of simple process, simple operation and the like, and the three processes can be pushed in parallel, so that the construction operation efficiency is improved.

When burying many foundation piles 1 underground, many foundation piles 1 simultaneously or in proper order with supplementary stake 5 fixed, toward 1 downthehole anchor layer 3 of pouring of foundation pile that corresponds, form the foundation pile crowd of compriseing many foundation piles 1.

In the implementation operation, after the anchoring layer 3 is poured in the pile foundation hole 21, the method further comprises the following construction steps:

and after the anchoring layer 3 reaches the preset strength value, the foundation pile 1 is released from being fixed with the auxiliary pile 5, and the auxiliary pile 5 is pulled out.

In some embodiments, before the foundation pile 1 is inserted into the pile foundation hole 21, the following construction steps are further included:

and (4) carrying out secondary excavation on the pile foundation hole 21 drilled to the designed elevation, and cleaning drilling slag flowing back to the pile foundation hole 21.

Digging pile foundation hole 21 through the secondary, clear away foreign matter such as drilling slag, prevent that foundation pile 1 from being held up by the foreign matter, guarantee foundation pile 1 can insert to preset degree of depth, make the terminal surface of the lower extreme of foundation pile 1 support tightly on the bottom of pile foundation hole 21, the gravity of building sees through the pile body and rolls to deliver to firm soil layer or rock on, the soil layer under the pile end plays corresponding supporting role, this construction process improves the pile-forming quality and the bearing strength of foundation pile 1.

Referring to fig. 2, in some embodiments, before the pouring of the anchoring layer 3 in the pile foundation hole 21, the following steps are further included:

a guide tube 6 for casting the anchoring layer 3 is arranged, and the lower port of the guide tube 6 extends between the inner wall of the pile foundation hole 21 and the outer wall of the foundation pile 1.

Through arranging pipe 6, carry out the accurate of fixing a position the fixed point and pour, with the concrete water conservancy diversion under water to between the lateral wall of stake foundation hole 21 and the outer wall of foundation pile 1, avoid the concrete under water to fall on to the peripheral riverbed 2 of stake foundation hole 21, prevent that the concrete under water from concreting with foundation pile 1 on riverbed 2, improve the fashioned quality of pouring simultaneously.

In practical application, after the arrangement of the conduit 6 for casting the anchoring layer 3, the following construction steps are also included:

underwater concrete which can be fixed to the anchoring layer 3 is loaded into the hopper 61, and the hopper 61 is hung over the upper end of the guide pipe 6.

Through adopting hopper 61 and the cooperation of pipe 6, the concrete falls into pipe 6 from hopper 61 under the effect of gravity under, along pipe 6 in falling to pile foundation hole 21, only reaches the transport effect through the dead weight of concrete under water, need not to adopt construction appliances such as pumps to assist, has reduced the work load of settling appurtenance, has reduced the required energy resource consumption of construction.

In practical operation, the pouring of the anchoring layer 3 in the pile foundation hole 21 includes the following construction steps:

when the underwater concrete in the hopper 61 completely fills the pile foundation hole 21 through the guide pipe 6, the guide pipe 6 is pulled out from the pile foundation hole 21, and the underwater concrete is waited to be solidified into the anchoring layer 3.

The guide pipe 6 is pulled out after the underwater concrete is poured, so that the guide pipe 6 is prevented from being anchored in the pile foundation hole 21 after the underwater concrete is solidified, and meanwhile, the forming quality of the underwater concrete solidified into the anchoring layer 3 is prevented from being influenced.

In a further improvement, when the guide pipe 6 is pulled out from the pile foundation hole 21, the method further comprises the following construction steps:

the depth of the underwater concrete around the foundation pile 1 is measured by the measuring rope, and the depth of the lower port of the guide pipe 6 embedded in the underwater concrete is confirmed.

In actual construction, the lower port of the guide pipe 6 is buried into underwater concrete to a depth of more than two meters, and then the high-quality anchoring layer 3 can be poured.

Referring to fig. 2, in some embodiments, when an even number of the pile foundation holes 21 are provided, every two foundation piles 1 are symmetrically arranged centering on the auxiliary pile 5 and are fixed to the auxiliary pile 5.

The plurality of foundation piles 1 are symmetrically arranged on the two opposite sides of the auxiliary pile 5, so that the number of the auxiliary piles 5 can be reduced, and a foundation pile group consisting of the plurality of foundation piles 1 can be constructed by one auxiliary pile 5.

In the concrete operation, when the auxiliary pile 5 is connected with the foundation pile 1, the construction method further comprises the following construction steps:

and building temporary supports 4, wherein every two symmetrically arranged foundation piles 1 are connected with the auxiliary piles 5 through the corresponding temporary supports 4.

Referring to fig. 5, in some embodiments, before the arrangement for excavating the temporary pile hole 22 and the pile foundation hole 21 provided on the river bed 2, the following construction steps are further included:

the drill 10 is transported to a predetermined construction site by the barge 8, and the drill 10 digs the temporary piling hole 22 and the piling hole 21.

In a specific operation, when the drilling machine 10 is transported to a preset construction position by the barge 8, the following construction steps are further included:

a drill 10 is attached to the barge 8 to be fixed to the barge 8.

In practical operation, 4 steel sections forming an angle of 45 degrees with the deck of the barge 8 are arranged, and ring steel members in the crawler belt of the drilling machine 10 are welded and fixed with the barge 8 through the steel sections.

In the construction work, when the drilling machine 10 is transported to a preset construction position by the barge 8, the construction method further comprises the following construction steps:

the barge 8 is positioned at a preset construction position by a chain 83 for connection with a ground anchor and a spud 82 for insertion on the river bed 2.

In practical application, the barge 8 is provided with the weight box 81, the barge 8 keeps the hull of the ship stable through the weight box 81, the excessive load on the side where the drilling machine 10 is placed is prevented, the construction stability of the drilling machine 10 is improved, and the hole digging quality is improved.

In the specific implementation, the pile foundation hole 21 and the temporary pile hole 22 are dug by adopting a rotary drilling construction process, when the soil layer of the riverbed 2 has good cohesiveness, a dry or clean water drilling process can be adopted, and mud is not needed for wall protection; when the soil layer of the river bed 2 is loose and easy to collapse, a static mud retaining wall drilling process is adopted, and retaining wall mud or stabilizing liquid is put into the holes for wall protection.

Referring to fig. 4, in some embodiments, before the drilling machine 10 is transported to a preset construction position by the barge 8, the following construction steps are further included:

the barge 8 is parked at the bank 11, a ship plate 9 is erected between the barge 8 and the bank 11, and a drilling machine 10 is moved to the barge 8 through the ship plate 9.

In the specific implementation, when the barge 8 stops on the shore, the construction method further comprises the following construction steps:

the barge 8 is positioned on the side of the river bank 11 by an anchor chain 83 for connection with a ground anchor and a spud 82 for insertion on the river bed 2.

Wherein the water depth of the river bank 11 side is about 1.5m, and the requirement of 8 drafts of the barge is met; the barge 8 is provided with a positioning pile 82 and an anchor chain 83 for inserting and driving on the riverbed 2.

In addition, the weight boxes 81 and the drilling machine 10 can be moved to the barge 8 by the penetration plates, and the weight boxes 81 and the drilling machine 10 can be transported to the barge 8 by a hoisting method, which is not limited in this embodiment.

The weight box 81 is filled with slag, and the weight of the weight box 81 can be adjusted by adding or reducing the slag in the weight box 81, so that the weight box is suitable for drilling machines 10 with different tonnages.

In the implementation operation, the river bank 11 is hardened to form a hardened driving band, the steel plate is embedded in advance, and the ship passing plate 9 is welded with the steel plate to realize the connection of the ship passing plate 9 and the river bank 11.

As shown in fig. 7-8, the present technical solution further provides a simple foundation pile structure, including a pile foundation hole 21 for digging on the riverbed 2, and a foundation pile 1 inserted in the pile foundation hole 21; and an anchoring layer 3 is poured around the inner side wall of the pile foundation hole 21 and the outer side wall of the foundation pile 1.

The anchoring layer 3 is poured between the outer wall of the foundation pile 1 and the side wall of the pile foundation hole 21, the anchoring layer 3 only anchors the foundation pile 1 outside the foundation pile 1, no reinforcing cage, profile steel and other parts are arranged inside the foundation pile 1 for reinforcement connection, and no anchoring concrete is poured, so that a typical friction end bearing pile structure is formed, bending resistance is born by the foundation pile 1 body, the anchoring layer 3 and the soil layer below the pile end bear heavy pressure, the foundation pile 1 and the anchoring layer 3 are stressed clearly, the characteristics of strong bending resistance of the large-diameter foundation pile 1, high compressive strength of the anchoring layer 3 and the like are fully exerted, compared with a pile planting method, the depth of the pile foundation hole 21 in the foundation pile structure is shallow, the depth of the lower end embedded part of the foundation pile 1 is shallow, and in the later stage, part of the foundation pile 1 above the river bed 2 can be recycled, no adverse effect is generated on the waterway, the foundation pile 1 is firmly connected with the river bed 2 and can be recycled, and the passage of the waterway is prevented from being influenced.

Wherein, the anchoring layer 3 is a concrete member with certain connection strength and bearing strength formed by concreting underwater concrete.

In a further improvement, the bottom surface of the foundation pile 1 abuts against the bottom surface of the pile foundation hole 21.

In practical application, the end of the foundation pile 1 abuts against the bottom surface of the pile foundation hole 21, the gravity of a building is transmitted to a firm soil layer or rock through the rolling of the foundation pile 1, and the soil layer below the pile end plays a corresponding supporting role, so that the foundation pile structure has a relatively excellent pressure-bearing effect.

In a further improvement of this embodiment, the foundation pile 1 is a circular pipe structure, and the pile foundation hole 21 is a circular hole matching the outer shape of the foundation pile 1.

The round pipe has the advantages of material saving, light dead weight, large surface area, low cost, strong operation operability, uniform stress and the like compared with a square pipe and a special pipe.

In some embodiments, the diameter ratio of foundation pile 1 to pile foundation hole 21 ranges from 1.

In some embodiments, the ratio of the thickness of foundation pile 1 to the diameter of pile foundation hole 21 is 2.

In a specific implementation, the foundation pile 1 is made of steel.

The foundation pile 1 is a steel pipe pile with a diameter of 820 x 10, the radius of the pile foundation hole 21 is 1.5m, and the anchoring layer 3 is made of C30 concrete.

The foundation pile 1 is specifically a steel pipe pile, and the characteristics of batch standardization of the steel pipe pile on the market are utilized, so that the foundation pile 1 in the foundation pile structure is easy to purchase and relatively low in cost, and in operation and construction, compared with the foundation pile 1 used in a pile planting method, a concrete pile does not need to be poured in situ through a pile casing, and the construction convenience and the construction efficiency are improved.

As a further improvement of this embodiment, the casting height of the anchoring layer 3 is equal to the depth of the pile foundation hole 21, and the material of the anchoring layer 3 is underwater concrete.

The pouring height of the anchoring layer 3 is equal to the depth of the pile foundation hole 21, the anchoring layer 3 fills and levels the pile foundation hole 21, the connection effect of the foundation pile 1 and the pile foundation hole 21 is enhanced, meanwhile, the anchoring layer 3 is prevented from overflowing to the outside of the pile foundation hole 21, the anchoring layer 3 is not fixed with the foundation pile 1 at the position above the riverbed 2, and the difficulty of disassembling and recovering the part of the foundation pile 1 above the riverbed 2 is reduced.

Preferably, the depth of the pile foundation hole 21 is not less than 4m.

This technical scheme still provides a simple and easy foundation pile system, including riverbed 2, still include as above simple and easy foundation pile structure, dig on the riverbed 2 and be equipped with stake foundation hole 21, foundation pile 1 assigns into in stake foundation hole 21, and passes through anchoring layer 3 with riverbed 2 relatively fixed.

In the use effect, the foundation pile structure can be arranged on a stream, a valley, a shoal and the like, is applied to geology of a shallow covering layer and a bare rock surface, is firmly connected with a riverbed 2, can be recycled, avoids influencing the passage of a navigation channel, and has excellent comprehensive performance.

This technical scheme still provides a trestle, including the bridge, lay the bridge floor on the top surface of bridge, still include as above simple and easy foundation pile structure, foundation pile 1 interval is arranged in the bottom of bridge, and is connected with the bottom of bridge.

In the in-service use, the substructure of landing stage adopts simple and easy foundation pile structure, and bridge floor and bridge on the landing stage pass through 1 firm connections of foundation pile on the riverbed 2, and when the landing stage was demolishd in the later stage or adjustment landing stage structure, also can demolish the recovery with the part foundation pile 1 that is located above the riverbed 2, improve the resource recovery rate, avoid influencing the channel current.

the construction process of the simple foundation pile structure adopted by the technical scheme has the characteristics of simple process and simple operation, only comprises three main processes of drilling, pile erecting, concrete pouring and the like, can be pushed in parallel among the three processes, and has higher pile forming speed.

According to the technical scheme, the anchoring layer 3 (underwater concrete) and the riverbed 2 rock mass are connected into a whole, the characteristics of roughness, high strength, high bearing capacity and the like of the rock mass surface are fully utilized, the pile body does not need to be anchored as deep as a pile planting method in a pile, and the pile body does not need to be added to form a stable structure system like a bench pile, so that the mechanical requirements of the trestle pile such as bending resistance, slippage resistance, overturning resistance, vertical bearing capacity and the like can be met.

The technical scheme not only shortens the pile length and improves the pile forming efficiency, but also recycles part of the pile body above the riverbed 2, saves the steel pipe pile material and does not have adverse effect on the channel after being dismantled.

In the bare rock surface riverbed 2 and in the environment with fast water flow velocity, the trestle tubular pile is externally anchored with concrete only by drilling, erecting and water system tubular piles, the process is simple, the construction operation is simple and convenient, and the mechanical requirements of the trestle pile such as bending resistance, overturning resistance, vertical bearing capacity and the like can be met.

The foregoing is only a part of the embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The trestle pile temporary supporting structure comprises a foundation pile which is vertically placed in a pile foundation hole, and is characterized by also comprising a temporary pile hole which is used for digging the riverbed, anchoring materials which are filled in the temporary pile hole, and an auxiliary pile which is used for positioning the foundation pile in the pile foundation hole; the auxiliary piles are buried in the anchoring materials and fixed with the foundation piles.

2. The temporary support structure of a trestle pile according to claim 1, further comprising a conduit for extending to a place between a side wall of a pile foundation hole and an outer wall of a foundation pile for casting an anchoring layer.

3. The temporary support structure of a trestle pile according to claim 2, further comprising a temporary support; the auxiliary piles and the foundation piles are connected with each other through the temporary support, and the guide pipe is erected on the temporary support.

4. The temporary support structure of the trestle pile according to claim 3, wherein the foundation pile is provided with an even number, and every two foundation piles are symmetrically arranged with the auxiliary pile as a center; the temporary supports are provided with a plurality of temporary supports, and every two symmetrically arranged foundation piles are connected with the auxiliary piles through the corresponding temporary supports.

5. The temporary support structure of a trestle pile according to claim 4, characterized in that the temporary supports extend in a straight line and are respectively connected to two corresponding foundation piles.

6. The temporary support structure of trestle pile according to claim 4, characterized in that several said temporary supports are at the same level and connected in intersection.

7. The temporary support structure of a trestle pile according to claim 3, wherein the temporary support comprises two support beams arranged at intervals, and a pipeline fixing frame erected between the two support beams; the auxiliary piles and the foundation piles are positioned between the two support beams and are connected with the support beams on the two sides; the guide pipe is connected with the pipeline fixing frame.

8. The temporary support structure of a trestle pile according to claim 7, characterized in that the pipe fixing frame comprises two spaced-apart cross beams; the end parts of the two cross beams are respectively connected with the corresponding supporting beams, and the guide pipe is positioned between the two cross beams and is connected with the cross beams on two sides.

9. Trestle pile group, including the riverbed, dig the stake foundation hole of establishing on the riverbed, characterized by, still include according to any one of claim 1-8 trestle pile temporary support structure, dig on the riverbed and be equipped with the interim stake hole, the foundation pile is fixed in the stake foundation hole.

10. The trestle pile group according to claim 9, wherein an anchoring layer is cast around between the side wall of the pile foundation hole and the outer wall of the foundation pile.