A device for assembling a pipe section of an ultra-large rectangular jacking pipe in a well and a method of use

Abstract

The application discloses a kind of for super large rectangular jacking pipe pipe joint underground assembling device and method, including pipe piece, the assembling mechanism of assembling pipe piece and transport pipe piece translation trolley, the translation trolley is set in the lower of assembling mechanism, the assembling mechanism includes two supports set up on ground, two described supports are all provided with connecting channel, two described supports are connected by movable construction platform, the bottom of support is provided with the positioning oil cylinder of adjusting pipe joint, the side of support is provided with the first adjusting oil cylinder of adjusting pipe joint, the other side is provided with the second adjusting oil cylinder of adjusting pipe joint, the second adjusting oil cylinder is oppositely arranged with first adjusting oil cylinder;The for super large rectangular jacking pipe pipe joint underground assembling device machine and method, in underground construction safety, quickly complete the assembly of pipe joint, reduce hoisting risk, solve the limited field construction site, reduce construction cost and so on.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to an underground assembly device and method for ultra-large rectangular pipe jacking sections. Background Technology

[0002] The development of urban rail transit is rapid both domestically and internationally. The use of ultra-large rectangular pipe jacking for mechanized tunnel excavation is expected to be implemented in future urban rail transit stations. Due to the extremely large cross-section, a two-stage pipe jacking method is employed, dividing the cross-section into left and right halves. Pipe jacking is completed on one side first, followed by the other, and then the entire system is converted to form the subway station. Because of the extremely large pipe section cross-section, prefabrication in sections at the factory and on-site assembly are used. However, this method, when used underground, suffers from slow assembly speed due to limited space, and underground assembly carries higher lifting risks, reducing safety and increasing construction costs. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the background art by providing a downhole assembly device and method for ultra-large rectangular jacking pipe sections.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: a downhole assembly device for ultra-large rectangular jacking pipe sections, comprising pipe segments, an assembly mechanism for assembling pipe segments, and a translation trolley for transporting pipe segments. The translation trolley is located below the assembly mechanism. The assembly mechanism includes two supports erected on the ground, each of which is provided with a connecting channel. The two supports are connected by a movable construction platform. A positioning cylinder for adjusting the pipe segment is provided at the bottom of the support. A first adjusting cylinder for adjusting the pipe segment is provided on one side of the support, and a second adjusting cylinder for adjusting the pipe segment is provided on the other side. The second adjusting cylinder is positioned opposite to the first adjusting cylinder. Two first guide cylinders arranged vertically are provided on the support near the first adjusting cylinder. Two second guide cylinders arranged vertically are provided on the support near the second adjusting cylinder. Two third guide cylinders arranged horizontally are provided on the upper part of the support.

[0005] Preferably, there are five movable construction platforms, three of which are arranged vertically on one side of the support, and the other two are arranged vertically on the other side of the support.

[0006] Preferably, there are four positioning cylinders, two of which are arranged opposite each other on both sides of the bracket, and the other two are arranged horizontally on the front of the bracket.

[0007] Preferably, the downhole assembly device for ultra-large rectangular jacking pipe sections according to the claim is characterized in that: there are two first adjusting cylinders, which are arranged vertically on one side of the support; and there are two second adjusting cylinders, which are arranged vertically on the other side of the support.

[0008] Preferably, the downhole assembly device for ultra-large rectangular jacking pipe sections according to the claim is characterized in that: the output ends of the first guide cylinder, the second guide cylinder and the third guide cylinder are all in the same direction, and the output end of the first guide cylinder is perpendicular to the output end of the first adjustment cylinder.

[0009] Preferably, the downhole assembly device for ultra-large rectangular jacking pipe sections according to the claim is characterized in that: one end of the connecting channel is provided with a first ladder extending to the ground, and the other end is provided with a second ladder extending upward.

[0010] A method for using a downhole assembly device for ultra-large rectangular jacking pipe sections, characterized by the following steps:

[0011] Step 1: Divide the tunnel segment into five parts: top segment, left segment, pipe section support, right segment, and bottom segment; fix the assembly mechanism to the pipeline construction well using pre-embedded bolts, and check that each part is installed in place to ensure safety; move the trolley for transporting the tunnel segment below the assembly mechanism.

[0012] Step 2: Use a gantry crane to lift the bottom segment and move it above the assembly mechanism. The gantry crane will then lower the bottom segment until it is 1 cm away from the upper track of the translation trolley. Stop the descent, extend the output ends of the four positioning cylinders, press them against the bottom segment, and adjust the position of the bottom segment. Then, lower the gantry crane again so that the bottom segment lands on the translation trolley.

[0013] Step 3: Use a gantry crane to lift the left-side segment and move it above the assembly mechanism. The gantry crane will then lower the left-side segment until it is a few centimeters from the bottom segment joint. Stop the descent and extend the output ends of the first adjusting cylinder and the first guiding cylinder to adjust the position of the left-side segment. Then, lower the hook of the gantry crane to extend the movable construction platform at the bottom of the left side. The assembly personnel will then use bolts to fix the joint between the bottom segment and the left-side segment on the movable construction platform. After that, operate the first adjusting cylinder to temporarily fix the two first adjusting cylinders vertically to the left-side segment, and then remove the lifting device.

[0014] Step 4: Use a gantry crane to lift the right-side segment. Lower the gantry crane to lower the right-side segment. Stop the descent when the segment is about cm away from the bottom segment joint. Then extend the output ends of the second adjusting cylinder and the second guide cylinder to adjust the position of the right-side segment. Then lower the hook of the gantry crane and connect and secure the right-side segment to the bottom segment. Then temporarily fix the two second adjusting cylinders vertically to the right-side segment and remove the lifting device.

[0015] Step 5: Use a gantry crane to lift the pipe section support into the assembly mechanism, and lower it to the connection point with the left and right pipe segments. Connect the pipe section support to the left and right pipe segments respectively.

[0016] Step 6: Use a gantry crane to lift the top segment and move it to the connection point between the left and right segments (cm). Stop the descent, then extend the output ends of the two third guide cylinders to adjust the position of the top segment, and then slowly lower it to secure the top segment to the joint between the left and right segments.

[0017] Step 7: After the five segments are assembled, the temporarily fixed first adjusting cylinder, second adjusting cylinder, four positioning cylinders, first guide cylinder and second guide cylinder are retrieved, the third guide cylinder is retained, and then the segments are transported by a translation trolley.

[0018] Compared with the prior art, the present invention has the following advantages: the assembly device of the present invention enables safe and quick assembly of pipe sections during underground construction, reduces hoisting risks, solves problems such as limited on-site construction space and high construction costs. Attached Figure Description

[0019] Figure 1 This is a front view of an underground assembly device and method for ultra-large rectangular jacking pipe sections according to the present invention.

[0020] Figure 2 This is a side view of an underground assembly device and method for ultra-large rectangular jacking pipe sections according to the present invention.

[0021] Figure 3 This is a front view of the assembly mechanism of the present invention.

[0022] Figure 4 This is a schematic diagram of the tube segment of the present invention.

[0023] Figure 5 This is a schematic diagram of the installation of the bottom segment of the present invention.

[0024] Figure 6 This is a schematic diagram of the installation of the left-side segment of the present invention.

[0025] Figure 7 This is a schematic diagram of the installation of the right-side segment of the present invention.

[0026] Figure 8 This is a schematic diagram of the pipe section support installation of the present invention.

[0027] Figure 9 This is a schematic diagram of the installation of the top tube segment of the present invention.

[0028] In the diagram: 1. Assembly mechanism; 2. Support frame; 21. Connecting channel; 22. Movable construction platform; 23. Positioning cylinder; 24. First adjusting cylinder; 25. Second adjusting cylinder; 26. First guide cylinder; 27. Second guide cylinder; 28. Third guide cylinder; 29. ​​First ladder; 20. Second ladder; 3. Segment; 4. Translation trolley. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the invention in a schematic manner, and therefore only show the components relevant to the invention.

[0030] Please refer to Figure 1-9 A downhole assembly device for ultra-large rectangular jacking pipe sections includes pipe segments 3, an assembly mechanism 1 for assembling pipe segments, and a translation trolley 4 for transporting pipe segments 3. The translation trolley 4 is located below the assembly mechanism 1. The assembly mechanism 1 includes two symmetrically arranged supports 2, each with a connecting channel 21. The two supports 2 are connected by a movable construction platform 22. A positioning cylinder 23 for adjusting the pipe segment is located at the bottom of each support 2. A first adjusting cylinder 24 for adjusting the pipe segment is located on one side of each support 2, and a second adjusting cylinder 25 for adjusting the pipe segment is located on the other side. The second adjusting cylinder 25 is positioned opposite to the first adjusting cylinder 24. Two vertically arranged first guide cylinders 26 are located near the first adjusting cylinder 24 on each support 2. Two vertically arranged second guide cylinders 27 are located near the second adjusting cylinder 25 on each support 2. Two horizontally arranged third guide cylinders 28 are located at the top of each support 2. Figure 1 and Figure 2 As shown, multiple movable construction platforms 22 are connected between the two supports 2. To avoid insufficient connection strength, connecting rods need to be added between the two supports 2. The two supports 2 are symmetrically arranged, so the output ends of the first guide cylinder 26, the second adjusting cylinder 25, and the third guide cylinder 28 on the two supports 2 are arranged opposite each other. Together with the first adjusting cylinder 24 and the second adjusting cylinder 25 on the side of the supports 2, they form a "U" structure, which surrounds the pipe segment 3 set between the two supports 2, and can be fixed and adjusted in all directions.

[0031] There are five movable construction platforms 22, among which three movable construction platforms 22 are arranged vertically on one side of the support 2, and the other two movable construction platforms 22 are arranged vertically on the other side of the support 2. As Figure 8 shown, the installation position of the movable construction platform 22 is installed according to the joint position of the segment, and the joints of the segment can be installed and adjusted while standing on the movable construction platform 22.

[0032] There are four positioning cylinders 23, among which two positioning cylinders 23 are oppositely arranged on both sides of the support 1, and the other two positioning cylinders 23 are horizontally arranged on the front of the support 1. As Figure 1 and Figure 2 shown, the four positioning cylinders 23 are all installed at the bottom position of the support 2, two on both sides and two on the front. Cooperating with the four positioning cylinders 23 on the other symmetrical support 2, a "hui" character structure is formed to surround the segment 1 between the two supports 2.

[0033] There are two first adjustment cylinders 24, and the two first adjustment cylinders 24 are arranged vertically on one side of the support 2. There are two second adjustment cylinders 25, and the two second adjustment cylinders 25 are arranged vertically on the other side of the support 2. The positions of the two first adjustment cylinders 24 are determined according to the height and length of the left segment. The two first adjustment cylinders 24 can adjust the position of the left segment in the segment 1 and temporarily fix the left segment. Similarly, the positions of the two second adjustment cylinders 25 are determined according to the height and length of the right segment.

[0034] The output end directions of the first guiding cylinder 26, the second guiding cylinder 27 and the third guiding cylinder 28 are the same, and the output end direction of the first guiding cylinder 26 is perpendicularly arranged to the output end direction of the first adjustment cylinder 24. The first guiding cylinder 26, the second guiding cylinder 27 and the third guiding cylinder 28 are all installed on the front of the support 2, facing the first guiding cylinder 26, the second guiding cylinder 27 and the third guiding cylinder 28 on the symmetrical support 2.

[0035] One end of the connecting channel 21 is provided with a first ladder 27 extending to the ground, and the other end is provided with a second ladder 28 extending upwards. As Figure 1 shown, the first ladder 27 allows workers to climb from the ground to the connecting channel 21, and the second ladder 28 allows climbing to the upper connecting channel 21 and the upper movable construction platform 22.

[0036] A usage method of an underground assembling device for an ultra-large rectangular pipe jacking pipe section, characterized by comprising the following steps:

[0037] Step 1: Divide segment 3 into five parts: top segment, left segment, pipe section support, right segment, and bottom segment; fix assembly mechanism 1 to the pipeline construction well with pre-embedded bolts, and check whether each part is installed in place to ensure safety; move the translation trolley 4 for transporting segment 3 to below assembly mechanism 1.

[0038] Step 2: Use a gantry crane to lift the bottom segment and move it above the assembly mechanism 1. The gantry crane will then lower the bottom segment and stop it when it is 5cm away from the upper track of the translation trolley 4. Then, extend the output ends of the four positioning cylinders 23, press them against the bottom segment, and adjust the position of the bottom segment. Then, lower the gantry crane again and let the bottom segment fall onto the translation trolley 4.

[0039] Step 3: Use a gantry crane to lift the left-side segment and move it above the assembly mechanism 1. The gantry crane descends to lower the left-side segment. When it falls to 5cm from the bottom segment joint, stop the descent. Then extend the output ends of the first adjusting cylinder 24 and the first guide cylinder 26 to adjust the position of the left-side segment. Then, the gantry crane lowers its hook to extend the movable construction platform 22 at the bottom of the left side. The assembly personnel use bolts to fix the joint between the bottom segment and the left-side segment on the movable construction platform 22. Then, operate the first adjusting cylinder 24 to temporarily fix the two first adjusting cylinders 24 vertically to the left-side segment. Then, remove the lifting device.

[0040] Step 4: Use a gantry crane to lift the right-side segment. Lower the gantry crane to lower the right-side segment. Stop the descent when the segment is 5cm from the bottom segment joint. Then extend the output ends of the second adjusting cylinder 25 and the second guide cylinder 27 to adjust the position of the right-side segment. Then lower the hook of the gantry crane and connect and secure the right-side segment to the bottom segment. Then temporarily fix the two second adjusting cylinders 25 vertically to the right-side segment and remove the lifting device.

[0041] Step 5: Use a gantry crane to lift the pipe section support into the assembly mechanism 1, and lower it to the connection point with the left and right pipe segments. Connect the pipe section support to the left and right pipe segments respectively.

[0042] Step 6: Use a gantry crane to lift the top segment and move it to 5cm from the connection point of the left and right segments. Stop the descent, then extend the output ends of the two third guide cylinders 28 to adjust the position of the top segment, and then slowly lower it to secure the connection between the top segment and the joint of the left and right segments.

[0043] Step 7: After the five segments are assembled, the temporarily fixed first adjusting cylinder 24, second adjusting cylinder 25, four positioning cylinders 23, first guide cylinder 26 and second guide cylinder 27 are retrieved, the third guide cylinder 28 is retained, and then the segments are transported by the translation trolley 4.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A device for assembling a pipe section of an ultra-large rectangular jacking pipe in a pit, comprising a pipe segment (3), an assembling mechanism (1) for assembling the pipe segment, and a translation trolley (4) for transporting the pipe segment (3), characterized in that: The translation platform (4) is arranged below the assembling mechanism (1), the assembling mechanism (1) includes two supports (2) arranged on the ground, the two supports (2) are provided with connecting channels (21), the two supports (2) are connected by the movable construction platform (22), the bottom of the support (2) is provided with a positioning oil cylinder (23) for adjusting the pipe joint, one side of the support (2) is provided with a first adjusting oil cylinder (24) for adjusting the pipe joint, the other side is provided with a second adjusting oil cylinder (25) for adjusting the pipe joint, the second adjusting oil cylinder (25) is arranged opposite to the first adjusting oil cylinder (24), two first guide oil cylinders (26) arranged in up-down direction are arranged on the support (2) near the first adjusting oil cylinder (24), two second guide oil cylinders (27) arranged in up-down direction are arranged on the support (2) near the second adjusting oil cylinder (25), and two third guide oil cylinders (28) arranged in transverse direction are arranged on the upper part of the support (2); The movable construction platform (22) has five, three of which are arranged in up-down direction on one side of the support (2), and the other two are arranged in up-down direction on the other side of the support (2); The positioning oil cylinder (23) has four, two of which are arranged on the two sides of the support (2) in opposite directions, and the other two are arranged horizontally on the front of the support (2); The first adjusting oil cylinder (24) has two, which are arranged in up-down direction on one side of the support (2), and the second adjusting oil cylinder (25) has two, which are arranged in up-down direction on the other side of the support (2); The output directions of the first guide oil cylinder (26), the second guide oil cylinder (27) and the third guide oil cylinder (28) are the same, and the output direction of the first guide oil cylinder (26) is perpendicular to the output direction of the first adjusting oil cylinder (24); One end of the connecting channel (21) is provided with a first ladder (29) extending to the ground, and the other end is provided with a second ladder (20) extending upward.

2. The use of a device for assembling sections of an ultra-large rectangular jacking pipe underground according to claim 1, characterized in that: The steps include: Step one: divide the pipe piece (3) into five parts, which are the top pipe piece, the left pipe piece, the pipe joint support, the right pipe piece and the bottom pipe piece; the assembling mechanism (1) is fixed in the pipe construction well by pre-buried bolts, and whether each part is installed in place is checked to ensure safety; the translation platform (4) carrying the pipe piece is moved below the assembling mechanism (1); Step two: use the gantry crane to lift the bottom pipe piece, then move it above the assembling mechanism (1), lower the gantry crane to make the bottom pipe piece fall, stop falling when it falls 5cm away from the track on the translation platform (4), then extend the output ends of the four positioning oil cylinders (23), top the bottom pipe piece and adjust the position of the bottom pipe piece, then lower the gantry crane to make the bottom pipe piece fall on the translation platform (4); Step three: use gantry crane to lift the left side tube piece, and then move to the top of the assembly mechanism (1). The gantry crane is lowered to make the left side tube piece fall. When the distance between the left side tube piece and the bottom tube piece joint is 5 cm, stop falling. Then extend the output ends of the first adjusting oil cylinder (24) and the first guide oil cylinder (26) to adjust the position of the left side tube piece. Then the gantry crane falls the hook, and the movable construction platform (22) at the bottom of the left side is extended. The assembler fixes the joint of the bottom tube piece and the left side tube piece with bolts on the movable construction platform (22). Then operate the first adjusting oil cylinder (24) to temporarily vertically fix the two first adjusting oil cylinders (24) and the left side tube piece. Then remove the lifting tool; Step four: use gantry crane to lift the right side tube piece. The gantry crane is lowered to make the right side tube piece fall. When the distance between the right side tube piece and the bottom tube piece joint is 5 cm, stop falling. Then extend the output ends of the second adjusting oil cylinder (25) and the second guide oil cylinder (27) to adjust the position of the right side tube piece. Then the gantry crane falls the hook. Then connect and fasten the right side tube piece and the bottom tube piece. Then temporarily vertically fix the two second adjusting oil cylinders (25) and the right side tube piece. Then remove the lifting tool; Step five: use gantry crane to lift the pipe section support into the assembly mechanism (1). Fall to the connection between the pipe section support and the left side tube piece and the right side tube piece; Step six: use gantry crane to lift the top tube piece to the connection between the left side tube piece and the right side tube piece 5 cm away. Stop falling. Then extend the output ends of the two third guide oil cylinders (28) to adjust the position of the top tube piece. Then slowly lower it to connect and fasten the joint between the top tube piece and the left side tube piece and the right side tube piece; Step seven: after the assembly of the five tube pieces is completed, recover the temporarily fixed first adjusting oil cylinder (24), second adjusting oil cylinder (25), four positioning oil cylinders (23), first guide oil cylinder (26) and second guide oil cylinder (27). Keep the third guide oil cylinder (28). Then transport the tube pieces through the translation trolley (4).

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