阅读说明：本技术 Pccp管道张拉装置以及张拉方法 (PCCP pipeline tensioning equipment and method for stretching ) 是由 张奇 沈来新 石维新 王东黎 杨进新 陈宗泽 吕兵 张弢 韦福堂 刘烨华 李军 于 2018-05-17 设计创作，主要内容包括：本发明涉及管道施工领域,公开了一种PCCP管道张拉装置以及张拉方法,该张拉装置包括第一部、第二部、驱动件和支撑件,驱动件(1)可移动地设置在支撑件上,容纳通道(3)包括位于所述第一部上的第一端口和位于第二部上的第二端口,第二部用于顶靠在PCCP管道锚固结构的锚板(13)上,第二部和安装于锚板的夹片(4)之间形成有间隙以允许夹片朝向第二部移动,钢绞线(2)从第二端口穿入容纳通道并从第一端口穿出容纳通道,第一端口设置为能够连接工具夹片(5),驱动件连接第一部,驱动件能够在从第二部到第一部的方向上运动以带动第一部远离支撑件。利用本申请提供的张拉装置,在进行张拉时能够避免钢绞线被刮伤。(The present invention relates to pipeline construction fields, disclose a kind of PCCP pipeline tensioning equipment and method for stretching, the tensioning equipment includes first, second, actuator and supporting element, actuator (1) is movably disposed on supporting element, receiving channel (3) includes the first port on described first and the second port on second, second for acting against the anchor slab (13) of PCCP pipeline anchoring structure, second and be installed on anchor slab intermediate plate (4) between be formed with gap to allow intermediate plate towards second movement, steel strand wires (2) penetrate receiving channel from second port and are pierced by receiving channel from first port, first port is configured to fastening means intermediate plate (5), actuator connects first, actuator can be moved upwards in the side from second to first to drive first Far from supporting element.Using tensioning equipment provided by the present application, it can be avoided steel strand wires when carrying out tensioning and be scraped off.)

1. a kind of PCCP pipeline tensioning equipment, which is characterized in that the PCCP pipeline tensioning equipment includes first, second, drive Moving part and supporting element, the actuator (1) are movably disposed on the supporting element, described first and the second part The opposite sides of the supporting element is not set, and described first, the supporting element and described second are collectively defined as making The receiving channel (3) that the steel strand wires (2) of PCCP pipeline pass through is obtained, the receiving channel (3) includes being located on described first First port and the second port on described second, described second for acting against the anchor of PCCP pipeline anchoring structure On plate (13), described second and be installed on the anchor slab (13) intermediate plate (4) between be formed with gap to allow the intermediate plate (4) towards second movement, the steel strand wires (2) from the second port penetrate the receiving channel (3) and from described First port is pierced by the receiving channel (3),

Wherein, the first port is configured to fastening means intermediate plate (5), and described actuator (1) connection described first, institute State actuator (1) can moved upwards from described second to first side with drive described first far from described Supporting element.

2. PCCP pipeline tensioning equipment according to claim 1, which is characterized in that multiple actuators (1) are around institute Receiving channel (3) are stated to be arranged so that described first can equably push the work in the circumferential direction of the tool clamping piece (5) Have intermediate plate (5).

3. PCCP pipeline tensioning equipment according to claim 2, which is characterized in that described first include pedestal (6) and The tool anchor slab (7) being arranged on the pedestal (6), be provided on the pedestal (6) susceptor through-holes with the tool anchor slab (7) through-hole on collectively forms the leading portion of the receiving channel (3), and the actuator (1) is fixedly connected with the pedestal (6).

4. PCCP pipeline tensioning equipment according to claim 3, which is characterized in that the PCCP pipeline tensioning equipment includes Multiple telescoping cylinders (8), are formed with gap between multiple telescoping cylinders (8) to constitute the middle section of the receiving channel (3), multiple The telescoping cylinder (8) is equably arranged around the gap, and the supporting element is the cylinder body of the telescoping cylinder (8), the driving Part (1) is the piston being arranged in each telescoping cylinder (8), and one end of the piston stretches out the cylinder body and connects the pedestal (6)。

5. PCCP pipeline tensioning equipment according to claim 4, which is characterized in that the telescoping cylinder (8) is by the piston It is divided into the first cavity (11) and the second cavity (12), for being connected to pressure supply device is provided on first cavity (11) One hole (21) is provided with the second hole (22) for being connected to the pressure supply device on second cavity (12).

6. PCCP pipeline tensioning equipment according to claim 3, which is characterized in that described first includes being arranged described Reinforcing rib (9) between pedestal (6) and the tool anchor slab (7).

7. PCCP pipeline tensioning equipment according to claim 1, which is characterized in that second end has groove (10), the side wall of the groove (10) can act against on the anchor slab (13) slot bottom and the folder so that the groove (10) The gap is formed between piece (4), is provided on the slot bottom for the through-hole by steel strand wires (2).

8. PCCP pipeline tensioning equipment according to claim 7, which is characterized in that described second is Tapered Cup (14), The big end of the Tapered Cup (14) connects the supporting element, and the small end of the Tapered Cup is formed with the groove (10), the cone The access that is connected to the through-hole on the slot bottom is provided in shape part (14) to constitute the back segment of the receiving channel (3).

9. PCCP pipeline tensioning equipment described in any one of -8 according to claim 1, which is characterized in that the receiving channel (3) extending direction is parallel with the direction of motion of the actuator (1).

10. a kind of PCCP pipeline method for stretching, which is characterized in that the method is using described in any one of claim 1-9 Tensioning equipment, which comprises

S1: the steel strand wires (2) of PCCP pipeline anchoring structure are penetrated into institute from the second port of the receiving channel (3) It states receiving channel (3), and is pierced by the receiving channel (3) from the first port of the receiving channel (3)；

S2: between described second is acted against on the anchor slab (13) and formed between described second and the intermediate plate (4) Gap；

S3: the steel strand wires (2) are tightened, and install the tool clamping piece in the second port of the receiving channel (3) (5)；

S4: the actuator (1) movement is driven to drive the described first separate supporting element to complete to twist the steel The tensioning of line (2)；

S5: stopping the actuator (1), removes the tool clamping piece (5) and takes the tensioning equipment from the steel strand wires (2) Out, the intermediate plate (4) is fastened between the steel strand wires (2) and the anchor slab (13).

Technical field

The present invention relates to pipeline construction fields, more particularly to a kind of PCCP pipeline tensioning equipment and method for stretching.

Background technique

Prestressed concrete cylinder pipe road (prestressed concrete cylinder pipe, hereinafter referred to as PCCP Pipeline) the composite construction pipeline that is made of tube core concrete, high-strength prestressed steel wire, mortar cover, with traditional pipe Road is compared, PCCP pipeline have bearing capacity is strong, water passing capacity is strong, it is substantially water-tight, be not easy burn into and fast and convenient can pacify Dress has the advantages that good adaptability and shock resistance are strong to ground.PCCP pipeline is as pressure conduit, in addition to earthing lotus It carries, outside transport load and interim mound load, has mainly undertaken water ballast(ing) in pressure.PCCP pipeline compressor wire is broken When, to guarantee pipe safety operation, reinforcement should be carried out to pipeline configuration, can bear high internal water pressure is such pipeline configuration safety Thus stable key is most effective reinforcement technique using external prestress strengthening method.

Conventional prestressed reinforcement system is circumferential post-tensioned prestressing system at present, and anchorage cannot move in stretching process It is dynamic, it is therefore desirable to anchorage is fixed, and for PCCP pipeline, since backing plate is not especially to be consolidated securely It is fixed, it is easy to make anchorage generation mobile or inclined in stretching process using existing circumferential post-tensioned prestressing system stretching mode Turn, so that causing anchorage and steel strand wires to generate dog-ear scratches steel strand wires.

Summary of the invention

The purpose of the invention is to overcome the anchorage of the existing technology in tensioning PCCP pipeline to be easy to happen movement And deflection, and cause anchorage and steel strand wires to lead to the problem of dog-ear and scratch steel strand wires, a kind of PCCP pipeline tensioning equipment is provided.

To achieve the goals above, one aspect of the present invention provides a kind of PCCP pipeline tensioning equipment, the PCCP pipeline tensioning Device is movably disposed on the supporting element including first, second, actuator and supporting element, the actuator, institute It states first and the opposite sides of the supporting element, described first, the supporting element and institute is not arranged in for the second part Second is stated to be collectively defined as so that the receiving channel that the steel strand wires of PCCP pipeline pass through, the receiving channel include being located at institute The first port on first and the second port on described second are stated, described second for acting against PCCP pipeline On the anchor slab of anchor structure, described second and be installed on the anchor slab intermediate plate between be formed with gap to allow the intermediate plate Towards second movement, the steel strand wires penetrate the receiving channel from the second port and wear from the first port The receiving channel out, wherein the first port is configured to fastening means intermediate plate, the actuator connection described first Portion, the actuator can be being moved upwards from described second to first side to drive described first separate institute State supporting element.

Preferably, multiple actuators are arranged around the receiving channel so that described first can be in the tool The tool clamping piece is equably pushed in the circumferential direction of intermediate plate.

Preferably, described first includes pedestal and the tool anchor slab being arranged on the pedestal, is arranged on the pedestal There are susceptor through-holes to collectively form the leading portion of the receiving channel with the through-hole on the tool anchor slab, the actuator is fixed to be connected Connect the pedestal.

Preferably, the PCCP pipeline tensioning equipment includes multiple telescoping cylinders, between being formed between multiple telescoping cylinders Gap is to constitute the middle section of the receiving channel, and multiple telescoping cylinders are equably arranged around the gap, and the supporting element is The cylinder body of the telescoping cylinder, the actuator are the piston being arranged in each telescoping cylinder, and one end of the piston is stretched out The cylinder body connects the pedestal.

Preferably, the telescoping cylinder is divided into the first cavity and the second cavity by the piston, sets on first cavity It is equipped with the first hole for being connected to pressure supply device, second for being connected to the pressure supply device is provided on second cavity Hole.

Preferably, described first includes the reinforcing rib being arranged between the pedestal and the tool anchor slab.

Preferably, second end have groove, the side wall of the groove can act against on the anchor slab with Make to form the gap between the slot bottom of the groove and the intermediate plate, be provided on the slot bottom for by the logical of steel strand wires Hole.

Preferably, described second is Tapered Cup, and the big end of the Tapered Cup connects the supporting element, the Tapered Cup Small end is formed with the groove, and the access being connected to the through-hole on the slot bottom is provided in the Tapered Cup to constitute the appearance Receive the back segment in channel.

Preferably, the extending direction of the receiving channel is parallel with the direction of motion of the actuator.

The application second aspect provides a kind of PCCP pipeline method for stretching, and the method is filled using tensioning as described above It sets, which comprises S1: the second port by the steel strand wires of PCCP pipeline anchoring structure from the receiving channel The receiving channel is penetrated, and is pierced by the receiving channel from the first port of the receiving channel；S2: by described second Portion acts against on the anchor slab and forms gap between the intermediate plate at described second；S3: the steel strand wires are tightened, and The tool clamping piece is installed in the second port of the receiving channel；S4: drive the actuator movement described to drive First far from the supporting element to complete the tensioning to the steel strand wires；S5: stopping the actuator, removes the tool Intermediate plate simultaneously takes out the tensioning equipment from the steel strand wires, by the intermediate plate be fastened on the steel strand wires and the anchor slab it Between.

Through the above technical solutions, using tensioning equipment provided by the present application when carrying out tensioning operation, by steel strand wires from The second port of receiving channel is penetrated and is pierced by from the first port of receiving channel, then acts against PCCP pipeline anchor for second On the anchor slab of fixing structure, tightens steel strand wires and tool clamping piece is set in the second port of receiving channel, then drive actuator fortune It is dynamic；When actuator setting in motion, second can push the side of tool clamping piece, since tool clamping piece is tightly attached to steel strand wires On, biggish frictional force can be generated between tool clamping piece and steel strand wires, so that second drive tool clamping piece and steel strand wires are common Movement；And due to there is gap between the intermediate plate in the anchor slab of second and PCCP pipeline anchoring structure, with the movement of steel strand wires Intermediate plate can be deviate from from anchor slab, so that the frictional force between intermediate plate and steel strand wires significantly becomes smaller, consequently facilitating steel strand wires are with driving The movement of part and by tensioning.

Detailed description of the invention

Fig. 1 is PCCP pipeline tensioning equipment according to the preferred embodiment of the present invention in PCCP pipeline anchoring structure Schematic diagram；

Fig. 2 is the schematic diagram of second end face of the PCCP pipeline tensioning equipment of Fig. 1.

Description of symbols

1- actuator 2- steel strand wires 3- receiving channel 4- intermediate plate 5- tool clamping piece

6- pedestal 7- tool anchor slab 8- telescoping cylinder 9- reinforcing rib

Specific embodiment

Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.

The application provides a kind of PCCP pipeline tensioning equipment, which includes first, second, drive Moving part and supporting element, the actuator 1 are movably disposed on the supporting element, and described first other with the second part The opposite sides of the supporting element is set, described first, the supporting element and it is described second be collectively defined as so that The receiving channel 3 that the steel strand wires 2 of PCCP pipeline pass through, the receiving channel 3 include the first port on described first With the second port being located on described second, described second is used to act against the anchor slab 13 of PCCP pipeline anchoring structure, Described second and be installed on the anchor slab 13 intermediate plate 4 between be formed with gap to allow the intermediate plate 4 towards described second Portion is mobile, and the steel strand wires 2 penetrate the receiving channel 3 from the second port and are pierced by the receiving from the first port Channel 3, wherein the first port is configured to fastening means intermediate plate 5, and the actuator 1 connects described first, described Actuator 1 can be being moved upwards from described second to first side to drive the described first separate support Part.

As shown in Figure 1, when carrying out tensioning operation, steel strand wires 2 are penetrated from the second port of receiving channel 3 and from receiving The first port in channel 3 is pierced by, and on the anchor slab 13 for then acting against second PCCP pipeline anchoring structure, tightens steel strand wires 2 And tool clamping piece 5 is set in the second port of receiving channel 3, then actuator 1 is driven to move；When 1 setting in motion of actuator, Second can push the side of tool clamping piece 5, due to tool clamping piece 5 and be tightly attached on steel strand wires 2, and tool clamping piece 5 and steel twist Biggish frictional force can be generated between line 2, so that second drive tool clamping piece 5 and 2 associated movement of steel strand wires；And due to second There is gap between intermediate plate 4 in the anchor slab 13 of portion and PCCP pipeline anchoring structure, as the movement intermediate plate 4 of steel strand wires 2 can be from anchor Plate 13 is deviate from, so that the frictional force between intermediate plate 4 and steel strand wires 2 significantly becomes smaller, consequently facilitating steel strand wires 2 are with actuator 1 Movement and by tensioning.

It should be noted that the intermediate plate 4 of the application meaning, tool clamping piece 5 are the intermediate plate of common class taper, anchor slab 13 And tool anchor slab 7 is also the plate body that common middle part has mounting hole, the connection relationship between intermediate plate, steel strand wires and anchor slab It is the type of attachment of the common mounting hole that the small end of intermediate plate is filled in anchor slab.

Specifically, as shown in Figure 1, for the anchor structure of PCCP pipeline, tensioning work is carried out using the tensioning equipment The step of industry includes: S1: by the steel strand wires 2 of PCCP pipeline anchoring structure from the second port of the receiving channel 3 The receiving channel 3 is penetrated, and is pierced by the receiving channel 3 from the first port of the receiving channel 3；S2: will be described Second acts against on the anchor slab 13 and forms gap between the intermediate plate 4 at described second；S3: by the steel strand wires 2 tighten, and install the tool clamping piece 5 in the second port of the receiving channel 3；S4: the actuator 1 is driven to move To drive described first tensioning far from the supporting element to completion to the steel strand wires 2；S5: stopping the actuator 1, It removes the tool clamping piece 5 and takes out the tensioning equipment from the steel strand wires 2, the intermediate plate 4 is fastened on the steel and is twisted Between line 2 and the anchor slab 13.

The application preferably uses two above-mentioned tensioning equipments at the both ends of steel strand wires while carrying out tensioning, such as Fig. 1 institute Show, the both ends of the cushion block 15 of the anchor structure of PCCP pipeline are provided with anchor slab 13, and the second part of two tensioning equipments is other It acts against on different anchor slabs 13, according to the actuator 1 of two tensioning equipments of above-mentioned step simultaneous tension steel strand wires 2 and holding Movement velocity it is identical, then the both ends of steel strand wires 2 will apply prestressing force to steel strand wires 2 to realize simultaneously by tensioning.

In view of can generally use multiply steel strand wires in prestressed structure, in order to expand the versatility of tensioning equipment, such as Fig. 2 It is shown, there are multiple second ports on second end face, correspondingly have a plurality of receiving channel 3, when carrying out tensioning, by the Multiple second ports on two end surfaces are respectively aligned to multiple through-holes on anchor slab 13, and in the first end of every receiving channel 3 The position of mouth is respectively mounted tool clamping piece 5.

As shown in Figure 1, multiple actuators 1 are arranged around the receiving channel 3 so that described first can be in institute It states and equably pushes the tool clamping piece 5 in the circumferential direction of tool clamping piece 5, and the extending direction and actuator 1 of receiving channel 3 are set The direction of motion it is parallel so that tool clamping piece 5 generates equably frictional force in the circumferential of steel strand wires 2, so that tool clamping piece 5 Steel strand wires 2 can be steadily driven to move.

First tool anchor slab 7 including pedestal 6 and the top surface for being set to the pedestal 6, tool clamping piece 5 are arranged in tool To be nested on steel strand wires 2 in the through-hole of anchor slab 7, the through-hole on susceptor through-holes and tool anchor slab 7 on pedestal 6 collectively forms appearance Receive the leading portion in channel 3, actuator 1 is bolted or is welded to connect in the bottom surface of pedestal 6, when actuator 1 is along from second When portion is moved upwards to first side, actuator 1 will push 7 associated movement of pedestal 6 and tool anchor slab, and tool anchor slab 7 can squeeze It presses and pushes tool clamping piece 5 to drive steel strand wires 2 to move.

In one of embodiment of the application, tensioning equipment includes multiple telescoping cylinders 8, multiple telescoping cylinders 8 Between be formed with gap to constitute the middle section of the receiving channel 3, multiple telescoping cylinders 8 are equably set around the gap It sets, the supporting element is the cylinder body of the telescoping cylinder 8, and the actuator 1 is the piston being arranged in each telescoping cylinder 8, One end of the piston stretches out the cylinder body and connects the pedestal 6.As shown in Figure 1, tensioning equipment include two telescoping cylinders 8, two A telescoping cylinder 8 can be set in shell or support frame so as to be capable of forming gap between two telescoping cylinders 8.

In order to telescoping cylinder pressure supply, it is preferable that the telescoping cylinder 8 is divided into the first cavity 11 and by the piston Two cavitys 12 are provided with the first hole 21 for being connected to pressure supply device on first cavity 11, set on second cavity 12 It is equipped with the second hole 22 for being connected to the pressure supply device.

As shown in Figure 1, telescoping cylinder 8 can be hydraulic cylinder, pressure supply device is adjusted separately by the first hole 21, the second hole 22 Pressure in first cavity 11 and the second cavity 12.When needing to carry out tensioning to steel strand wires 2, the feed flow into the first cavity 11 Extract the liquid in the second cavity 12 simultaneously, the pressure increase in the first cavity and the pressure in the second cavity reduces, piston is just It can be moved along second to first direction, to drive first associated movement.After completing tensioning work, to the second cavity Feed flow extracts the liquid in the first cavity 11 simultaneously in 12, so that it may by piston reset.Certainly, telescoping cylinder 8 can also select gas Cylinder, correspondingly pressure supply device is gas source to supply or be evacuated into the first cavity 11, the second cavity 12.

In stretching process, first can generate biggish thrust to tool clamping piece 5, in order to enable first structure is more Add firm, it is preferable that described first includes the reinforcing rib 9 being arranged between the pedestal 6 and the tool anchor slab 7, is reinforced Muscle makes the connection between pedestal 6 and tool anchor slab 7 stronger, improves first bearing capacity.

Second can select structure appropriate, in order to steadily act against second on anchor slab 13, it is preferable that Second end has groove 10, and the side wall of the groove 10 can act against on the anchor slab 13 so that the groove 10 The gap is formed between slot bottom and the intermediate plate 4, and the through-hole for passing through steel strand wires 2 is provided on the slot bottom.

As shown in Figure 1, mounting hole of the end face of the side wall of groove 10 on anchor slab 13 acts against on anchor slab 13, and in anchor Gap is formed between the mounting hole of plate 13 and the slot bottom of groove 10, which has sufficiently large space, so that on anchor slab 13 Intermediate plate 5 has enough spaces as steel strand wires 2 are drawn out from the mounting hole on anchor slab 13.

Preferably, second is Tapered Cup 14, and the big end of the Tapered Cup 14 connects the supporting element, the Tapered Cup Small end is formed with the groove 10, and the access being connected to the through-hole on the slot bottom is provided in the Tapered Cup 14 to constitute The back segment of receiving channel 3 is stated, the setting form of Tapered Cup makes second bearing capacity stronger.Wherein, second big end Integrated formed structure can be used with the support frame for fixing telescoping cylinder 8, convenient for the batch production of tensioning equipment.

It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited thereto.At this It, can be with various simple variants of the technical solution of the present invention are made in the range of the technology design of invention.Including each particular technique Feature is combined in any suitable manner.In order to avoid unnecessary repetition, the present invention is to various combinations of possible ways No further explanation will be given.But it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to the present invention Protection scope.