CN113530241A - Pumping jacking interface structure and pumping jacking method for tall steel pipe concrete column - Google Patents

Abstract

The application discloses a pumping jacking interface structure and a pumping jacking method for a tall steel pipe concrete column, which comprise an injection opening formed in the outer wall of the bottom end of a steel pipe and a lower holding piece detachably connected to the outer wall of the bottom end of the steel pipe, wherein one side of the lower holding piece is provided with a notch penetrating through the top end of the lower holding piece; the steel pipe outside sideslip is connected with the valve plate of vertical setting, and the valve plate laminating is provided with the power spare that is used for driving the valve plate and removes on the outer wall of steel pipe, set up on the roof of fixed block with the mouth of stepping down of valve plate adaptation, be provided with on the valve plate and be used for preventing the coating that concrete and valve plate bonded. The steel pipe dismantling device has the advantages that dismantling difficulty of components outside the steel pipe is low, and construction efficiency is improved.

Description

Pumping jacking interface structure and pumping jacking method for tall steel pipe concrete column

Technical Field

The invention relates to the field of steel pipe concrete column construction, in particular to a pumping jacking interface structure and a pumping jacking method for a tall steel pipe concrete column.

Background

In the construction process of the steel structure, concrete filling construction is usually carried out on a plurality of steel pipes. In the related art, the filling of concrete is generally performed by means of pouring. However, when the partition plates in the steel pipes are dense and the apertures are small, it is difficult to ensure that commercial concrete smoothly passes through a plurality of partition plates during concrete pouring.

As shown in fig. 1, in the pumping and lifting method of concrete, an injection port 011 is formed on the lower pipe wall of a steel pipe 01, an outlet of a concrete delivery pump is connected with the injection port 011 by a high-pressure delivery pump pipe 02, the high-pressure delivery pump pipe 02 comprises a short connecting pipe 021 inserted and fixed in the injection port 011, a connecting pipe 022 communicated with the short connecting pipe 021 and a high-pressure pump pipe 023 connected with the delivery pump, and a check valve 024 for preventing concrete from flowing backwards is arranged between the high-pressure pump pipe 023 and the connecting pipe 022. The concrete is continuously injected into the steel pipe 01 through the high-pressure delivery pump pipe 02 by pumping pressure, and the concrete is fully injected from the inner lower end of the steel pipe 01 to the inner upper end of the steel pipe 01 by depending on the jacking principle, so that the concrete can smoothly pass through a plurality of partition plates, and the construction of the concrete is required to be carried out through a pumping jacking method.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the jacking of the concrete is stopped, the flow stopping valve 024 is closed, the high-pressure pump pipe 023 is removed, after the strength of the core concrete reaches 70%, the flow stopping valve 024 and the connecting pipe 022 are removed, then the connecting short pipe 021 of the concrete coagulated in the inner cavity is removed in a cutting mode from one end close to the injection port 011, the repair welding construction of the injection port 011 is carried out, the removing difficulty of the high-pressure delivery pump pipe 02 after the jacking of the concrete is stopped is higher, and a certain improvement space exists.

Disclosure of Invention

In order to reduce the dismantling difficulty of a high-pressure conveying pump pipe, the application provides a pumping jacking interface structure of a tall steel pipe concrete column and a pumping jacking method.

The application provides a tall and big steel core concrete column pump sending jacking interface structure and pump sending jacking method adopts following technical scheme:

the pumping jacking interface structure of the high and large steel pipe concrete column comprises an injection opening formed in the outer wall of the bottom end of a steel pipe and a lower holding member detachably connected to the outer wall of the bottom end of the steel pipe, wherein one side of the lower holding member is provided with a notch penetrating through the top end of the lower holding member, the position of the notch corresponds to the position of the injection opening, a fixed block is fixedly arranged on the lower holding member, one end of the fixed block penetrates through the notch to abut against the outer wall of the steel pipe, a communication opening is formed in the fixed block, one side, away from the lower holding member, of the fixed block is detachably connected with a short connecting pipe, and the inner cavity of the short connecting pipe is communicated with the inner cavity of the steel pipe through the communication opening and the injection opening;

the steel pipe outside sideslip is connected with the valve plate of vertical setting, the valve plate is laminated in the outer wall of steel pipe, be provided with the power spare that is used for driving the valve plate and removes on the outer wall of steel pipe, set up the mouth of stepping down with the valve plate adaptation on the roof of fixed block, let a mouthful and intercommunication mouth intercommunication, it is provided with one side and external spaced seal assembly who is used for being close to the intercommunication mouth to step down mouthful department, seal assembly can open the mouth of stepping down under the drive of valve plate, the valve plate is used for controlling the switching of filling opening, be provided with the coating that is used for preventing concrete and valve plate bonding on the valve plate.

By adopting the technical scheme, when the jacking of the concrete is stopped, the valve plate is driven to vertically move downwards by the power part, the sealing assembly moves under the action of the valve plate to open the abdicating opening, the valve plate continues to move downwards to seal the injection opening, the communicating opening is separated from the inner cavity of the steel pipe, the coating on the valve plate separates the concrete in the steel pipe from the valve plate, at the moment, the junction pipe is disassembled, cleaned and moved to the next steel pipe to be connected with the fixed block at the next steel pipe for concrete pumping jacking of the next steel pipe, after the strength of the core concrete in the steel pipe reaches 70 percent, the power part and the valve plate are disassembled, when the valve plate is disassembled, a constructor can easily disassemble the valve plate, the disassembling steps of components outside the steel pipe after the jacking of the concrete is stopped are simple, the disassembling difficulty is low, the construction efficiency is improved, meanwhile, the connecting short pipe and the inner cavity of the steel pipe are communicated with the inner cavity of the steel pipe through the communicating opening and the injection opening, the airtightness of the connection between the short connecting pipe and the steel pipe is improved, the problems of slurry leakage and air leakage in the pumping jacking construction process are reduced, and the construction efficiency is further improved.

Preferably, the diapire of valve plate sets up to the arc with the inner wall looks adaptation of intercommunication mouth, the valve plate bottom is inserted in the mouth of stepping down and will let a mouthful one side of keeping away from the intercommunication mouth and seal, the valve plate can remove the inner wall butt to the diapire of valve plate and intercommunication mouth under the effect of power part, the spine that has set firmly a plurality of vertical settings on the diapire of valve plate, offer the holding tank that is used for holding the spine on the inner wall of intercommunication mouth.

Through adopting above-mentioned technical scheme, when the valve plate was in initial condition, the valve plate bottom stretched into in the mouth of stepping down, will step down a mouthful top and seal, the closing plate removes under the effect of valve plate and will step down the mouth and open the back, the valve plate diapire that is the arc setting has certain cushioning effect to the impact of the concrete of high-pressure pump sending, it is not fragile to make the valve plate, simultaneously, the setting of spine has reduced the resistance of valve plate downstream process, has played further guard action to valve plate and power spare.

Preferably, seal assembly is including seting up in the seal groove of letting a mouthful lateral wall towards the steel pipe, it is connected with the closing plate to slide in the seal groove, the moving direction of closing plate is parallel with the axis direction of filling opening, one side that the steel pipe was kept away from to the closing plate is connected in the seal groove through the pressure spring, one side that the closing plate is close to the steel pipe supports under the effect of pressure spring and closely laminates in the outer wall of steel pipe, one side top that the closing plate is close to the steel pipe is provided with and goes up the inclined plane with valve plate bottom complex, it increases gradually from one side that is close to the steel pipe to the opposite side to go up the height on inclined plane.

Through adopting above-mentioned technical scheme, when the valve plate was vertical downstream under the effect of power spare, the effort was exerted to last inclined plane to valve plate bottom and last inclined plane butt, made the closing plate to keeping away from one side of steel pipe and removed, opened until the mouth of stepping down, and the valve plate continues to move down to obturating the filling opening, has realized seal assembly to the opening and closing of the mouth of stepping down.

Preferably, the bottom of one side that the closing plate is close to the steel pipe is provided with down the inclined plane, down the inclined plane the same with the incline direction on last inclined plane, seal groove opening side's bottom edge has seted up the bevel of stepping down corresponding with down the inclined plane.

Through adopting above-mentioned technical scheme, when the closing plate is in the state that will let a mouthful seal, the concrete of high-pressure pump sending applys ascending effort to the closing plate, and the setting up of lower inclined plane has disperseed the concrete of high-pressure pump sending and to the ascending effort of closing plate, makes the closing plate have the trend towards the steel pipe removal under the effect of concrete, has increased the effect of sealing of closing plate, has reduced the damage of closing plate simultaneously.

Preferably, the fixed block top is slided along the moving direction of closing plate and is connected with the piece that supports, the one side that the steel pipe was kept away from to the piece that supports passes through spring coupling in fixed block, it is provided with the atress inclined plane to support on the piece, the incline direction on atress inclined plane is relative with the incline direction on last inclined plane, the valve plate top sets firmly and is used for the application of force piece to atress inclined plane application of force, the valve plate removes when closing the sprue, supports the outer wall of tight piece butt in the valve plate under the effect of application of force piece.

Through adopting above-mentioned technical scheme, the valve plate is at the in-process that moves down of power spare effect, and force application spare moves along with the valve plate, when moving to force application spare and atress inclined plane butt, applies the effort to the atress inclined plane, makes to support tight one side of moving towards the steel pipe, and when the valve plate moved to seal the filling opening, support tight one butt in the outer wall of valve plate under the effect of force application spare, played the effect of compressing tightly to the valve plate, increased the stability of valve plate.

Preferably, the diameter of the communication opening is larger than the diameter of the injection opening.

Through adopting above-mentioned technical scheme, reduced the appearance of the edge condition of leaking the thick liquid of filling opening, increased the effect of obturating of valve plate to the steel pipe inner chamber.

Preferably, the connecting short pipe, the communication port and the injection port are coaxially arranged.

By adopting the technical scheme, the conveying path of concrete is shortened, and the construction efficiency of concrete pumping and jacking is improved.

Preferably, the outer wall of the steel pipe is detachably connected with an upper holding member, and the power member is fixedly arranged on the upper holding member.

Through adopting above-mentioned technical scheme, be convenient for be connected of power spare and steel pipe, also be convenient for constructor demolishs the power spare.

Preferably, the power part is a vertically arranged hydraulic cylinder or air cylinder, and a rod part of the hydraulic cylinder or the air cylinder is fixed at the top end of the valve plate.

Through adopting above-mentioned technical scheme, realized being connected between drive and valve plate and the steel pipe to the valve plate.

A pumping jacking method for a tall steel pipe concrete column comprises the following steps:

s1, when the concrete is pumped and jacked, the valve plate is located above the communicating port, and the concrete is pumped to the inner cavity of the steel pipe through the short connecting pipe, the communicating port and the filling port in sequence;

s2, when the jacking of the concrete is stopped, the valve plate is driven by the power part to vertically move downwards to open the sealing assembly, and the valve plate continues to move downwards to seal the injection port;

s3, detaching the short connecting pipe, moving the short connecting pipe to the next steel pipe, and connecting the short connecting pipe with a fixing block at the next steel pipe;

and S4, after the strength of the core concrete reaches 70%, removing the lower holding member, the power member and the valve plate.

Through adopting above-mentioned technical scheme, the step of demolising of the outer component of steel pipe is simple after the concrete stops the jacking, and construction sequence is reasonable, has improved the efficiency of construction, simultaneously, has increased the seal of being connected between junction pipe and the steel pipe, has reduced the leak source gas leakage problem among the pump sending jacking work progress, has further promoted the efficiency of construction.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the method has the advantages that the method has simple dismantling steps of members outside the steel pipe after the jacking of the concrete is stopped, has low dismantling difficulty and improves the construction efficiency;

2. the short connecting pipe and the inner cavity of the steel pipe are communicated with the inner cavity of the steel pipe through the communication port and the filling port, so that the connection tightness between the short connecting pipe and the steel pipe is improved, the problems of slurry leakage and air leakage in the pumping jacking construction process are reduced, and the construction efficiency is further improved;

3. the valve plate diapire that is the arc setting has certain cushioning effect to the impact of the concrete of high-pressure pump sending, makes the valve plate not fragile, and simultaneously, the setting of spine has reduced the resistance of valve plate downstream in-process, has played further guard action to valve plate and power spare.

Drawings

Fig. 1 is a structural schematic diagram showing the structure of a steel pipe, an injection port and a high-pressure delivery pump pipe in the background art.

Fig. 2 is a schematic overall structure diagram in the first embodiment.

FIG. 3 is a partial schematic structural view showing the lower clasping member, the fixing block, the power member, the valve plate and the connecting short structure in the first embodiment.

Fig. 4 is a partial sectional view schematically showing a connection structure between the valve plate and the fixed block and a positional relationship between the injection port, the communication port, and the short connection pipe in the first embodiment.

FIG. 5 is a schematic view of a partial structure of a valve plate according to the first embodiment.

Fig. 6 is a partially enlarged schematic view of a portion a in fig. 4.

Fig. 7 is a partial sectional view schematically showing a state where the valve plate closes the injection port in the first embodiment.

Fig. 8 is a partially enlarged schematic view of a portion B in fig. 4.

Fig. 9 is a partial structural schematic view showing the structure of the upper fastening member in the second embodiment.

Description of reference numerals:

01. a steel pipe; 011. an injection port; 02. a high pressure delivery pump line; 021. a short connecting pipe; 022. a connecting pipe; 023. a high pressure pump line; 024. a flow stop valve; 1. a lower clasping member; 11. an arc-shaped plate; 12. an extension plate; 13. a reinforcing plate; 14. opening the gap; 2. a fixed block; 21. a communication port; 211. accommodating grooves; 22. a let position port; 23. a seal assembly; 231. a sealing groove; 232. a sealing plate; 2321. an upper inclined plane; 2322. a lower inclined plane; 233. a pressure spring; 24. a abdication bevel angle; 3. a valve plate; 31. pricking with a sharp point; 32. a force application block; 321. a force application plane; 322. a force application slope; 33. a reinforcing sheet; 4. a power member; 5. a connecting plate; 51. a vertical plate; 52. a propping block; 521. a force-bearing inclined plane; 53. a spring; 6. and an upper clasping piece.

Detailed Description

The present application is described in further detail below with reference to figures 2-8.

Example one

The embodiment of the application discloses big steel core concrete column pump sending jacking interface structure, combine fig. 2, fig. 3 and fig. 4, including seting up in the filling opening 011 of steel pipe 01 bottom outer wall, the filling opening 011 sets up to the round mouth, still including dismantling the lower fastener 1 of embracing of connecting in steel pipe 01 bottom outer wall, it has fixed block 2 corresponding with filling opening 011 position down to set firmly on the fastener 1, connecting pipe 021 can be dismantled to connect in fixed block 2, set up the intercommunication mouth 21 that is used for the inner chamber and the filling opening 011 intercommunication of connecting pipe 021 on the fixed block 2, the outer wall of steel pipe 01 sets firmly the valve plate 3 that can reciprocate and is used for driving valve plate 3 to remove 4 with the power part of control filling opening 011 switching. When the valve plate 3 seals the injection port 011, constructors can detach the connecting short pipe 021 and move the connecting short pipe to the next steel pipe 01, and when the strength of core concrete in the steel pipe 01 reaches 70%, the constructors detach all components outside the steel pipe 01, so that the construction difficulty is reduced, and the construction efficiency is improved.

Referring to fig. 3, the lower clasping member 1 is provided with a hoop, so that the connection strength between the lower clasping member 1 and the steel pipe 01 is ensured. The staple bolt includes the arc 11 of two symmetries settings, and the outer wall laminating of the inner wall of arc 11 and steel pipe 01, the intermediate position of one of them arc 11 is corresponding with the position of filling opening 011. Two free ends of arc 11 outwards extend respectively and have extension board 12, leave the clearance and compress tightly the connection through the cooperation of bolt and nut between two adjacent extension boards 12 of two arc 11, and the welding has a plurality of reinforcing plates 13 between the outer wall of extension board 12 and the outer wall of arc 11.

Lower hugging closely 1 in with the injection port 011 corresponding arc 11 on seted up opening 14, opening 14 runs through the roof of lower hugging closely 1, opening 14 bottom sets up to the semicircle arc type with the coaxial setting of injection port 011. The lower holding piece 1 is fixedly provided with a fixing block 2 matched with the notch 14, one end of the fixing block 2 penetrates through the notch 14 to abut against the outer wall of the steel pipe 01, and the outer wall of the fixing block 2 is welded and fixed with the inner wall of the notch 14.

With reference to fig. 3 and 4, the communication port 21 is coaxial with the injection port 011, the diameter of the communication port 21 is greater than that of the injection port 011, the short connection pipe 021 is detachably connected to one side of the fixed block 2 away from the steel pipe 01 through a flange, the short connection pipe 021 is coaxial with the communication port 21, the inner diameter of the short connection pipe 021 is the same as that of the communication port 21, the short connection pipe 021, the communication port 21 and the injection port 011, which are coaxially arranged, shorten a conveying path of concrete, and improve the construction efficiency of concrete pumping and jacking.

Power component 4 is located the 1 top of lower fastener, and power component 4 is the pneumatic cylinder or the cylinder of vertical setting, and the jar portion of pneumatic cylinder or cylinder is fixed in the outer wall of steel pipe 01.

Combine fig. 3 and fig. 4, the vertical setting of valve plate 3, valve plate 3 is the arc setting with the outer wall laminating of steel pipe 01, refer to fig. 5, and 3 bottom of valve plate set up to the arc with the inner wall looks adaptation of intercommunication mouth 21, and the pole portion of pneumatic cylinder or cylinder is fixed in on 3 tops of valve plate, and valve plate 3 moves down to the diapire of valve plate 3 and when the inner wall butt of intercommunication mouth 21 under the effect of power spare 4, seals the filling port 011. When the valve plate 3 moves downwards under the action of the power part 4, the bottom wall of the valve plate 3 which is arranged in an arc shape has certain buffer effect on the impact of the concrete pumped by high pressure, so that the valve plate 3 is not easy to damage. In addition, with reference to fig. 4 and 5, in order to reduce the resistance of the valve plate 3 in the downward movement process and further protect the valve plate 3 and the power component 4, the bottom wall of the valve plate 3 is fixed with the vertically arranged spikes 31, the spikes 31 are arranged at intervals, and the inner wall of the communication port 21 is provided with accommodating grooves 211 corresponding to the spikes 31 one by one and used for accommodating the spikes 31.

For preventing that the concrete from bonding in the outer wall of valve plate 3, the dismantlement of the valve plate 3 of being convenient for, the coating has the coating that is used for blocking the outer wall of concrete and valve plate 3 on the outer wall of valve plate 3, and in this embodiment, the coating can set up to polyurethane waterproof coating.

Combine fig. 3 and fig. 4, vertical seting up on the roof of fixed block 2 and let a mouthful 22, let a mouthful 22 downwardly extending to communicate with intercommunication mouth 21, let a mouthful 22 and valve plate 3 looks adaptation be used for making valve plate 3 stretch into in intercommunication mouth 21, when valve plate 3 was in initial condition, valve plate 3 bottom was inserted in letting a mouthful 22, valve plate 3 along its both sides wall of circumference respectively with the both sides wall butt of letting a mouthful 22, will let a mouthful 22 keep away from one side of intercommunication mouth 21 and seal.

With reference to fig. 4, 6 and 7, a sealing assembly 23 for sealing the yielding port 22 is disposed on one side of the yielding port 22 close to the communication port 21, the sealing assembly 23 is located below the valve plate 3, the sealing assembly 23 includes a sealing groove 231 formed in a side wall of the yielding port 22 facing the steel pipe 01, a sealing plate 232 matched with the sealing groove 231 is connected in the sealing groove 231 in a sliding manner, and a moving direction of the sealing plate 232 is parallel to an axial direction of the communication port 21. A compression spring 233 is fixed between the sealing groove 231 and the side of the sealing plate 232 away from the steel pipe 01, the compression spring 233 is arranged along the moving direction of the sealing plate 232, and a plurality of the compression springs 233 are arranged at intervals. The side of the sealing plate 232 far away from the sealing groove 231 is set to be an arc-shaped surface matched with the outer wall of the steel pipe 01, when the valve plate 3 does not apply acting force on the sealing plate 232, the side of the sealing plate 232 far away from the sealing groove 231 is abutted and pressed on the outer wall of the steel pipe 01 under the action of the pressure spring 233, and the relief opening 22 is sealed.

The sealing plate 232 is provided with the inclined plane 2321 on being close to one side top of steel pipe 01, the height of going up inclined plane 2321 increases from one side that is close to steel pipe 01 to the opposite side gradually, valve plate 3 is vertical downward movement to the bottom and the last inclined plane 2321 butt of valve plate 3 under the effect of power 4, exert the effort to last inclined plane 2321, make sealing plate 232 remove to the one side of keeping away from steel pipe 01, until will letting the position mouth 22 open, valve plate 3 continues the downward movement, one side butt that sealing plate 232 is close to steel pipe 01 is laminated in the outer wall of valve plate 3, valve plate 3 moves down to the diapire butt of valve plate 3 on the inner wall of intercommunication mouth 21, seal injection port 011.

It should be emphasized that the bottom end of the sealing plate 232 near the steel tube 01 is provided with a lower inclined surface 2322, and the lower inclined surface 2322 has the same inclination angle as the upper inclined surface 2321. When the sealing plate 232 is in the state of sealing the allowance opening 22, the concrete pumped by high pressure exerts upward acting force on the sealing plate 232, the lower inclined surface 2322 disperses the upward acting force of the concrete pumped by high pressure on the sealing plate 232, so that the sealing plate 232 has a tendency of moving towards the steel pipe 01 under the action of the concrete, the sealing effect of the sealing plate 232 is increased, and meanwhile, the damage to the sealing plate 232 is reduced.

For preventing that sealing plate 232 from removing, lower inclined surface 2322 and fixed block 2 take place to interfere, and the bottom edge that sealing plate 231 opened side is provided with and is used for stepping down inclined surface 2322 and abdicating oblique angle 24, and when sealing plate 232 was close to the lateral wall butt of steel pipe 01 on the lateral wall of valve plate 3, lower inclined surface 2322 butt was in abdicating oblique angle 24.

Referring to fig. 4 and 8, a connecting plate 5 is fixed at the top end of the fixing block 2, and a vertical plate 51 perpendicular to the connecting plate 5 is integrally formed on one side of the connecting plate 5 away from the steel tube 01. The connecting plate 5 is connected with the block 52 that supports in the one side of riser 51 towards steel pipe 01 slides, and the moving direction that supports the block 52 is the same with the moving direction of closing plate 232, supports the lateral wall that the block 52 faces the valve plate 3 and is the arcwall face with the outer wall looks adaptation of valve plate 3, supports the block 52 and keeps away from one side of steel pipe 01 and connects in the extension board through spring 53, and spring 53 sets up along the moving direction that supports the block 52, and spring 53 interval is provided with a plurality ofly.

The top end of the abutting block 52 is provided with a force-bearing inclined plane 521 at the side far away from the steel pipe 01, and the inclined direction of the force-bearing inclined plane 521 is opposite to the inclined direction of the upper inclined plane 2321. Referring to fig. 5, a force application block 32 for applying a force to the force application inclined plane 521 is fixed at the top end of the valve plate 3, the force application block 32 is provided with a force application plane 321 and a force application inclined plane 322 extending to a side of the force application plane 321 close to the steel pipe 01, and an inclination angle of the force application inclined plane 322 is the same as that of the force application inclined plane 521.

With reference to fig. 4 and 7, in the initial position, a distance is left between the abutting block 52 and the valve plate 3, when the valve plate 3 moves downward until the force application plane 321 of the force application block 32 abuts against the force application inclined plane 521 of the abutting block 52, the abutting block 52 moves toward the steel pipe 01 under the action of the force application block 32, when the valve plate 3 moves until the bottom wall of the valve plate 3 abuts against the inner wall of the communication port 21, the force application inclined plane 521 of the abutting block 52 abuts against the force application inclined plane 322 of the force application block 32, and the abutting block 52 abuts against the outer wall of the valve plate 3 under the action of the force application block 32, so that the valve plate 3 is pressed, and the stability of the valve plate 3 is improved.

Referring to fig. 4 and 5, the rod of the hydraulic cylinder or the air cylinder is fixed to the end surface of the top end of the force application block 32, and after the valve plate 3 is inserted into the abdicating opening 22, the acting force of the concrete needs to be overcome, so that the acting force applied by the hydraulic cylinder or the air cylinder to the force application block 32 and the valve plate 3 is large, and in order to increase the stability of the connection between the force application block 32 and the valve plate 3, reinforcing pieces 33 are integrally formed between the two sides of the force application block 32 and the valve plate 3.

The embodiment of the application further discloses a pumping jacking method for the tall steel pipe concrete column, which comprises the following steps in combination with fig. 2 to 8:

s1, opening of the steel pipe 01:

opening an injection port 011 on the steel pipe 01, and enabling the position of the injection port 011 to be 80 centimeters above the ground elevation;

s2, pipeline connection:

connecting the lower holding piece 1 to the outer side of the steel pipe 01 to realize the connection between the fixed block 2 and the steel pipe 01, enabling the communication port 21 to be coaxial with the injection port 011, connecting the short connecting pipe 021 to one side of the fixed block 2, which is far away from the steel pipe 01, through a flange, sequentially connecting the connecting pipe 022, the flow stopping valve 024 and the high-pressure pump pipe 023, and arranging a support for supporting the connecting pipe 022, the flow stopping valve 024 and the high-pressure pump pipe 023;

s3, mounting of the valve plate 3:

a polyurethane waterproof coating is arranged on the outer wall of the valve plate 3, the top end of the valve plate 3 is fixed to the rod part of the hydraulic cylinder or the air cylinder, the hydraulic cylinder or the air cylinder is fixed to the outer wall of the steel pipe 01, the position of the valve plate 3 corresponds to the position of the abdicating port 22, and the inner wall of the valve plate 3 is attached to the outer wall of the steel pipe 01;

s4, pumping and jacking water or cement mortar:

the flow stopping valve 024 is opened, the abdicating opening 22 is tightly sealed by the sealing component 23, concrete is pumped into the steel pipe 01 through the high-pressure pump pipe 023, the flow stopping valve 024, the connecting pipe 022, the junction pipe 021, the communication opening 21 and the injection opening 011 in sequence to pump water or cement mortar, so that the inner wall of the steel pipe 01 is lubricated, and the friction resistance between the concrete and the steel pipe 01 is reduced;

s5, concrete pumping and jacking;

s6, stopping pumping and jacking the concrete:

pumping and jacking concrete uninterruptedly until the concrete overflows from the top end of the steel pipe 01, stopping jacking, closing the check valve 024, driving the valve plate 3 to vertically move downwards through the power part 4, moving the sealing plate 232 away from the steel pipe 01 under the action of the valve plate 3 to open the relief opening 22, continuously moving the valve plate 3 downwards until the bottom wall of the valve plate is abutted against the inner wall of the communication opening 21, inserting the spine 31 into the accommodating groove 211, and closing the injection opening 011; meanwhile, in the process that the valve plate 3 moves downwards, the force application block 32 moves together with the valve plate 3 to abut against the abutting block 52, an acting force is applied to the abutting block 52, the abutting block 52 moves towards the steel pipe 01 under the action of the force application block 32, and when the valve plate 3 moves to the state that the bottom wall of the valve plate 3 abuts against the inner wall of the communication port 21, the abutting block abuts against the outer wall of the valve plate 3, so that the valve plate 3 is further pressed;

s7, dismantling the connecting short pipe 021:

the short connecting pipe 021 is detached and moved to the next steel pipe 01, and is connected with the fixed block 2 at the next steel pipe 01 through a valve flange;

s8, removing all components except the steel pipe 01:

after the strength of the core concrete reaches 70%, the lower holding piece 1 is detached from the outer side of the steel pipe 01, the power piece 4 and the valve plate 3 are detached, and due to the arrangement of the polyurethane waterproof coating on the valve plate 3, the concrete is separated from the outer wall of the valve plate 3, so that a constructor can conveniently detach the valve plate 3, repair-weld the injection port 011, grind and repair paint;

s9, repair welding of a top sealing plate:

and after the concrete is cured for 28 days, the top plate is sealed by repair welding.

The concrete stops demolising the step of the component outside the steel pipe 01 simple after the jacking, and the construction order is reasonable, has improved the efficiency of construction, simultaneously, has increased the seal of being connected between junction pipe 021 and steel pipe 01, has reduced the leak source gas leakage problem in the pump sending jacking work progress, has further promoted the efficiency of construction.

Example two

Referring to fig. 9, a big steel core concrete column pump sending jacking interface structure, with the embodiment one difference lies in, still can dismantle on 01 outer wall of steel pipe and be connected with on hold tightly 6, on hold tightly 6 be located hold tightly 1 top down and with the power 4 the position corresponding, on hold tightly 6 and set up to the staple bolt the same with the structure of holding tightly 1 down, no longer describe here.

The outer wall of the upper holding piece 6 is fixed to the cylinder part of the hydraulic cylinder or the air cylinder, so that the power piece 4 and the steel pipe 01 can be conveniently connected, and the power piece 4 can be conveniently detached by a constructor.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a tall and big steel core concrete column pump sending jacking interface structure which characterized in that: the injection port (011) is arranged on the outer wall of the bottom end of the steel pipe (01), the lower clamping piece (1) is detachably connected to the outer wall of the bottom end of the steel pipe (01), one side of the lower clamping piece (1) is provided with a notch (14) penetrating through the top end of the lower clamping piece (1), the position of the notch (14) corresponds to the position of the injection port (011), the lower clamping piece (1) is fixedly provided with a fixed block (2), one end of the fixed block (2) penetrates through the notch (14) to be abutted to the outer wall of the steel pipe (01) and is attached to the outer wall of the steel pipe (2), the fixed block (2) is provided with a communication port (21), one side, far away from the lower clamping piece (1), of the fixed block (2) is detachably connected with a connecting short pipe (021), and the inner cavity of the connecting short pipe (021) is communicated with the inner cavity of the steel pipe (01) through the communication port (21) and the injection port (011);

the utility model discloses a steel pipe (01) outside sideslip is connected with valve plate (3) of vertical setting, valve plate (3) laminate in the outer wall of steel pipe (01), be provided with on the outer wall of steel pipe (01) and be used for driving power part (4) that valve plate (3) removed, set up on the roof of fixed block (2) with valve plate (3) adaptation let position mouth (22), let position mouth (22) and intercommunication mouth (21) intercommunication, let position mouth (22) department be provided with be used for being close to its one side and external spaced seal assembly (23) of intercommunication mouth (21), seal assembly (23) can will let position mouth (22) open under the drive of valve plate (3), valve plate (3) are used for controlling the switching of filling opening (011), be provided with on valve plate (3) and be used for preventing the coating that concrete and valve plate (3) bond.

2. The pumping and jacking interface structure of the concrete-filled steel tubular column according to claim 1, wherein: the diapire of valve plate (3) sets up to the arc with the inner wall looks adaptation of intercommunication mouth (21), valve plate (3) bottom is inserted and will let one side of a mouthful (22) keeping away from intercommunication mouth (21) in letting a mouthful (22) and is sealed, valve plate (3) can move the inner wall butt of diapire and intercommunication mouth (21) of valve plate (3) under the effect of power spare (4), spine (31) of a plurality of vertical settings have set firmly on the diapire of valve plate (3), offer holding tank (211) that are used for holding spine (31) on the inner wall of intercommunication mouth (21).

3. The pumping and jacking interface structure of the concrete-filled steel tubular column according to claim 2, wherein: seal assembly (23) are including seting up in letting a mouthful (22) seal groove (231) towards the lateral wall of steel pipe (01), it is connected with closing plate (232) to slide in seal groove (231), the moving direction of closing plate (232) is parallel with the axis direction of filling opening (011), one side that steel pipe (01) were kept away from in closing plate (232) is passed through pressure spring (233) and is connected in seal groove (231), one side that closing plate (232) are close to steel pipe (01) supports under the effect of pressure spring (233) and tightly laminates in the outer wall of steel pipe (01), one side top that closing plate (232) are close to steel pipe (01) is provided with and goes up inclined plane (2321) with valve plate (3) bottom complex, go up inclined plane (2321) highly increase gradually to the opposite side from one side that is close to steel pipe (01).

4. The pumping and jacking interface structure of the concrete-filled steel tubular column according to claim 3, wherein: the sealing plate (232) is provided with down inclined plane (2322) near one side bottom of steel pipe (01), inclined plane (2322) is the same with the incline direction of last inclined plane (2321) down, seal groove (231) opening side's bottom edge has seted up and has abdied bevel (24) corresponding with lower inclined plane (2322).

5. The pumping and jacking interface structure of the concrete-filled steel tubular column according to claim 3, wherein: fixed block (2) top is slided along the moving direction of closing plate (232) and is connected with and supports the piece, the one side that steel pipe (01) were kept away from to the piece of support is passed through spring (53) and is connected in fixed block (2), it is provided with atress inclined plane (521) to support on the piece, the incline direction on atress inclined plane (521) is relative with the incline direction on last inclined plane (2321), valve plate (3) top sets firmly and is used for the application of force piece to atress inclined plane (521) application of force, valve plate (3) remove when sealing injection port (011), support the piece under the effect of application of force piece butt in the outer wall of valve plate (3).

6. The pumping and jacking interface structure of the concrete-filled steel tubular column according to claim 2, wherein: the diameter of the communication opening (21) is larger than that of the injection opening (011).

7. The pumping and jacking interface structure of the concrete-filled steel tubular column according to claim 1, wherein: the connecting short pipe (021), the communication port (21) and the injection port (011) are coaxially arranged.

8. The pumping and jacking interface structure of the concrete-filled steel tubular column according to claim 1, wherein: the outer wall of the steel pipe (01) is detachably connected with an upper holding piece (6), and the power piece (4) is fixedly arranged on the upper holding piece (6).

9. The pumping and jacking interface structure of the concrete-filled steel tubular column according to claim 8, wherein: the power part (4) is a vertically arranged hydraulic cylinder or air cylinder, and the rod part of the hydraulic cylinder or the air cylinder is fixed at the top end of the valve plate (3).

10. The pumping jacking method for the pumping jacking interface structure of the concrete filled steel tubular column according to any one of claims 1 to 9, which is characterized by comprising the following steps:

s1, when the concrete is pumped and lifted, the valve plate (3) is located above the communicating opening (21), and the concrete is pumped to the inner cavity of the steel pipe (01) through the connecting short pipe (021), the communicating opening (21) and the injection opening (011) in sequence;

s2, when the jacking of the concrete is stopped, the valve plate (3) is driven to vertically move downwards through the power part (4) to open the sealing assembly (23), and the valve plate (3) continues to move downwards to seal the injection port (011);

s3, detaching the connecting short pipe (021), moving the connecting short pipe to the next steel pipe (01) and connecting the connecting short pipe with the fixing block (2) at the next steel pipe (01);

s4, after the strength of the core concrete reaches 70%, the lower holding member (1), the power member (4) and the valve plate (3) are detached.

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