CN116411985A

CN116411985A - Tunnel supporting assembly, system and method for transferring tunnel supports overlapped up and down

Info

Publication number: CN116411985A
Application number: CN202310621530.7A
Authority: CN
Inventors: 鲁海波; 尹伟; 王伟
Original assignee: Beijing Beijing Heshuntong Tunnel Engineering Co ltd
Current assignee: Beijing Beijing Heshuntong Tunnel Engineering Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-07-11

Abstract

The invention belongs to the technical field of tunnel support, and discloses a tunnel support assembly, a system and an up-down overlapped tunnel support transfer method, wherein the tunnel support assembly capable of being detached and transferred comprises an upper support assembly for supporting one part of inner wall in the circumferential direction of a tunnel and a lower support assembly for supporting the other part of inner wall in the circumferential direction of the tunnel, and the lower support assembly and the upper support assembly form a support structure matched with the shape in the tunnel together; the upper supporting component is connected with the lower supporting component through at least one first supporting component, and the first supporting component is detachably connected with the upper supporting component or the lower supporting component, so that the upper supporting component and the lower supporting component can be mutually detached. The invention adopts a frame type structure which can be conveniently disassembled and assembled, can play an effective role in supporting, can be conveniently disassembled, can realize the support of different positions of a tunnel by matching with the transfer trolley, can be repeatedly used, and has lower cost, lighter weight and simpler structure compared with the prior tunnel supporting trolley.

Description

Tunnel supporting assembly, system and method for transferring tunnel supports overlapped up and down

Technical Field

The invention belongs to the technical field of tunnel support, and particularly relates to a tunnel support assembly, a tunnel support system and a tunnel support transferring method overlapped up and down.

Background

Along with the mass popularization of urban rail transit in China, the shield technology is more mature and reliable, the construction concept of being capable of shielding is formed in the shield industry, and the shield technology is being promoted greatly. Along with the development of underground space, the underground space of a central area of a city is more and more dense, the routing space of a subway line is gradually limited, and partial areas have to adopt the construction technology of an upper and lower overlapped tunnel, so that the construction of the upper and lower overlapped tunnel needs to be completed by constructing a downlink tunnel, and the like, performing reinforcement measures in the downlink tunnel and then constructing an uplink tunnel, and the current situation in China is more and more.

The traditional downlink tunnel supporting mode has two schemes at present, one scheme is to adopt a steel structure to support the downlink tunnel, the scheme is only suitable for the tunnel of short-distance up-down overlapping construction, if the length of the overlapping tunnel is too long, the required steel structure quantity is too large, and a large amount of manpower is required to be input for construction. The hydraulic trolley is adopted for supporting in the tunnel of the longer overlapped tunnel of the overlapped tunnel, so that the trolley of the downlink tunnel is synchronously carried out along with the shield construction of the uplink tunnel, the shield construction of the uplink tunnel is carried out, the supporting trolley of the downlink tunnel is supported at the position in advance, the trolley of the support realizes full hydraulic control during traveling and supporting, and the mode is basically adopted at present.

However, the hydraulic trolley has the advantages of complex structure, high manufacturing cost and large whole machine weight.

Disclosure of Invention

In view of the above, the invention aims to provide a tunnel supporting assembly, a system and a method for transferring overlapped tunnel supports, which are used for solving the problems of complex structure, high manufacturing cost and heavy whole machine weight of the existing tunnel supporting trolley.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

in a first aspect, a detachable tunnel supporting component is provided, which comprises an upper supporting component for supporting an inner wall of one part of the circumference of a tunnel and a lower supporting component for supporting an inner wall of the other part of the circumference of the tunnel, wherein the lower supporting component and the upper supporting component together form a supporting structure matched with the inner shape of the tunnel;

the upper support assembly is connected with the lower support assembly through at least one first supporting component, and the first supporting component is detachably connected with the upper support assembly or the lower support assembly so that the upper support assembly and the lower support assembly can be mutually detached;

the upper support assembly and the lower support assembly are connected in a detachable mode, a channel for the transfer trolley to pass through is formed between the upper support assembly and the lower support assembly, and the upper support assembly is provided with a transfer connecting portion which is used for being detachably connected with the transfer trolley so as to transfer the upper support assembly through the transfer trolley.

In a possible implementation manner, the first propping component is arranged on the upper supporting component and is positioned on the inner side of the upper supporting component, the first propping component is provided with a first connecting part, and the lower supporting component is provided with a second connecting part which is detachably connected with the first connecting part.

In a possible implementation manner, the first propping component is a hydraulic cylinder, and the first connecting part comprises a first connecting flange arranged at the driving end of the hydraulic cylinder;

the second connecting part comprises connecting legs arranged on the inner side of the lower supporting component and a second connecting flange arranged on the top end of the connecting legs, and the second connecting flange is connected with the first connecting flange through a fastener.

In a possible implementation, the lower support assembly is provided with a track parallel to the tunnel length direction, and the transfer trolley is provided with a running gear adapted to the track.

In a possible implementation manner, the upper support assembly comprises an arc-shaped support beam which is supported by point contact or surface contact with the inner wall of the tunnel and a transverse support beam which is arranged on the inner side of the arc-shaped support beam;

and the two ends of the transverse supporting beam are respectively fixed with at least one first supporting component, and the channel is formed among the first supporting component, the transverse supporting beam and the lower supporting component.

In a possible implementation, the arc-shaped supporting beams support the tunnel inner wall in point contact;

the outer side of the arc-shaped supporting beam is uniformly provided with a plurality of supporting points along the arc-shaped outer edge of the arc-shaped supporting beam, and each supporting point is provided with a supporting block.

In a possible implementation manner, a plurality of fixing rib plates are detachably connected between the first top support component and the arc-shaped support beam on the corresponding side.

In a possible implementation manner, the arc-shaped supporting beam comprises semicircular I-steel, arc-shaped side sealing plates fixed on the front side and the rear side of the I-steel, and a top sealing plate fixed between the outer edges of the two arc-shaped side sealing plates.

In a possible implementation manner, two oblique support beams are also symmetrically arranged on the inner side of the arc-shaped support beam.

In a possible implementation, the tunnel support assembly is applied to a large diameter tunnel;

the transverse support beam comprises a main support beam and end support beams connected with the arc beams at two sides, and the end support beams are detachably connected with the main support beam;

at least one second supporting component is detachably connected between each arc-shaped beam and the main supporting beam.

In a possible implementation manner, the lower support assembly comprises a support base and abutting support pieces abutting against two sides of the support base, and the abutting support pieces and the support base form a semicircular support structure which is fit with the inner wall of the supported tunnel;

the two ends of the upper support assembly in the circumferential direction are respectively provided with a propping oil cylinder, and one end of the propping support piece, which is close to the propping oil cylinder, is provided with a first propping part in propping fit with the propping oil cylinder;

the upper support assembly is connected with the support base through the first top support component.

In a possible implementation manner, two sides of the support base are respectively provided with a second abutting portion, one end of the abutting support piece, which deviates from the first abutting portion, is provided with a third abutting portion, and the third abutting portion is in abutting fit with the second abutting portion, so that the lower support assembly can be detached.

In a second aspect, there is also provided a detachable transport tunnel support system comprising a transport vehicle and a plurality of sets of a detachable transport tunnel support assembly according to any one of the above aspects;

the transfer trolley comprises a trolley body, wherein the trolley body is provided with a lifting driving part, the top of the lifting driving part is connected with a rotary driving part, and the rotary driving part is provided with a connection matching part which is used for being detachably connected with the transfer connecting part, so that the upper supporting component can rotate by a first angle through the rotary driving part, and the first angle is 45-135 degrees.

In a possible implementation, the rotary drive component includes a swivel bearing, a third and a fourth connection flange, and a linear drive component;

the inner ring of the slewing bearing is connected with the third connecting flange arranged at the driving end of the lifting driving component, the outer ring of the slewing bearing is connected with the fourth connecting flange, the fourth connecting flange is parallel to the third connecting flange, and the fourth connecting flange is used for being connected with the transferring connecting part; one end of the linear driving component is hinged with a first hinge point of the third connecting flange, the other end of the linear driving component is hinged with a second hinge point of the fourth connecting flange, and the linear driving component is eccentrically arranged, so that the upper supporting component connected with the fourth connecting flange rotates by the first angle through the linear driving component.

In a possible implementation manner, the transferring connection part is a fifth connection flange, and the fifth connection flange is matched with the fourth connection flange;

the first angle is 90 °.

In a third aspect, a method for supporting and transporting a tunnel in a vertically overlapped manner is provided, and a detachable transportation tunnel supporting system based on any one of the above technical solutions includes the following steps:

Sequentially installing a plurality of groups of detachable transport tunnel supporting components at each tunnel position to be supported in the downlink tunnel according to the design until the arrangement length of the tunnel supporting components meets the requirements of shield construction, and at the moment, starting the construction of the uplink tunnel;

when the uplink tunnel is constructed, transferring the tunnel supporting component in the downlink tunnel to extend;

the method comprises the following steps of:

the transfer trolley is stopped under a transfer connecting part of the tunnel supporting component to be transferred, and the transfer connecting part is connected with the transfer trolley;

releasing the connection between the lower support part and the first propping part and between the abutting oil cylinder and the abutting support piece, and retracting the first propping part;

the transfer trolley is controlled to move to a place where the space of an adjacent tunnel is vacant, and then an upper supporting component connected to the transfer trolley is rotated by 45-135 degrees from an initial state to a transfer state through a linear driving component, so that the transfer trolley is easy to transfer in the tunnel;

the upper supporting component is transported to the position of the next lower supporting component to be supported by the transport vehicle, the upper supporting component connected to the transport vehicle is rotated to be in an initial state, in the initial state, the upper supporting component is upwards close to the inner wall of the tunnel by the lifting supporting component of the transport vehicle, then the first supporting component is connected with the lower supporting component, and meanwhile, the connection between the transport vehicle and the upper supporting component is released;

The first jacking component is operated to support the upper support assembly and the connected lower support assembly within the tunnel.

In a possible implementation manner, the steps of sequentially installing a plurality of groups of detachable transport tunnel supporting components at each tunnel position to be supported in the downlink tunnel according to the design until the arrangement length of the tunnel supporting components meets the requirements of shield construction, and at the moment, the construction of the uplink tunnel can be started, and the method comprises the following steps:

assembling an upper supporting component of the detachable transferring tunnel supporting component, connecting a first supporting component of the upper supporting component with a supporting base of a lower supporting component, and transferring the first supporting component to a position to be supported in a tunnel through a transfer trolley;

installing abutting support pieces at the position to be supported, and enabling the two abutting support pieces to be respectively and tightly connected with two sides of the support base;

pressing the abutting support piece through the abutting oil cylinder of the upper support assembly, and locking the abutting oil cylinder after the pressure of the abutting oil cylinder meets the requirement, so that the installation of the first group of tunnel support assemblies is completed;

and repeating the steps, and installing a plurality of groups of tunnel supporting components along the length direction of the tunnel until the arrangement length of the tunnel supporting components meets the requirements of shield construction, wherein the construction of the uplink tunnel can be started at the moment.

Compared with the prior art, the invention has the following beneficial effects:

the detachable and transportable tunnel supporting assembly adopts a frame type structure which is convenient to disassemble and assemble, can effectively support, is convenient to disassemble, can realize the support of different positions of a tunnel by being matched with a transport trolley, can be reused, and has lower cost, lighter weight, simpler structure and convenient transportation compared with the existing tunnel supporting trolley.

Moreover, through the structure that first jack-up part and lower support subassembly can dismantle the connection, both can adjust the support dynamics of two support subassemblies to tunnel inner wall, also can make the dismouting more convenient between two support subassemblies to through setting up the track on supporting the base, the track both can be convenient for the transfer car (buggy) remove, also is convenient for link up with the track in non-supporting area, more does benefit to the passage of relevant vehicle.

Simultaneously, lower supporting component is through setting up the butt support piece of butt installation, can be convenient for will support the base one and transfer and wait to support the position after, through butt installation alright realize connecting, improved packaging efficiency greatly, structural design is more reasonable.

In addition, the whole support component is basically made of steel materials, so that the cost is low, the support component can be assembled in a tunnel or on the ground, the cost increased by the fact that the whole support component needs to be assembled in advance and transported is saved, and the support component is more convenient.

In some application scenes, the upper supporting component can adopt a multi-section connecting structure, and a plurality of groups of second supporting components are arranged between the arc-shaped supporting beam and the transverse supporting beam, so that the tunnel supporting component can be used for supporting a large-diameter tunnel, and the application range is wider.

According to the detachable transport tunnel supporting system, a plurality of groups of supporting components can be conveniently transported to be installed in place during installation through the transport trolley, and the upper supporting components can be transported through the transport trolley when the upper supporting components need to extend, so that repeated continuous support of a tunnel can be completed only through the cooperation of a plurality of upper supporting components under the condition that a plurality of supporting bases are arranged.

Moreover, the lifting driving part and the linear driving part which adopt the oil cylinders are arranged on the transfer trolley, the lifting driving part can be adjusted to be connected with the height of the upper supporting component of the transfer trolley so as to be convenient to install or detach, and the upper supporting component can be rotated through the linear driving part, the slewing bearing and the rotatable structure formed by the flange, so that the upper supporting component can be more convenient to move, and the transfer is more convenient and practical.

According to the method for supporting and transferring the up-down overlapped tunnel, the tunnel supporting system is adopted to carry out tunnel supporting operation, so that the problems that a downlink tunnel supporting trolley is complex in design, high in manufacturing cost and high in whole machine weight during construction of the up-down overlapped tunnel in the existing shield construction can be effectively solved.

Drawings

FIG. 1 is a schematic structural view of a detachable transport tunnel support assembly according to an embodiment of the present application;

FIG. 2 is a schematic structural view of an upper support assembly of a removably transported tunnel support assembly, also showing a cross-sectional view of an arcuate support beam, according to an embodiment of the present application;

FIG. 3 is a schematic view of a detachable transport tunnel support assembly according to an embodiment of the present application when applied to a large diameter tunnel;

FIG. 4 is a schematic diagram of a detachable transport tunnel support system according to an embodiment of the present application, showing the structure of the tunnel support assembly when connected to a transport vehicle;

FIG. 5 is a side view of a transfer cart of a detachable transfer tunnel support system according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a rotary drive member of a removably transported tunnel support system according to an embodiment of the present application;

FIG. 7 is a schematic view of the principle of rotation of a rotary drive member of a removably transported tunnel support system according to an embodiment of the present application;

FIG. 8 is a top view of a removable transport tunnel support system in accordance with an embodiment of the present application in preparation for a transport process;

FIG. 9 is a top view of a removable transport tunnel support system according to an embodiment of the present application when rotated by first moving to a spatially free position during transport;

Fig. 10 is a top view of a detachable transport tunnel support system according to an embodiment of the present application as it is being rotated during transport to be transported again near a location to be supported.

In the figure: 1-a tunnel support assembly; 11-an upper support assembly; 111-arc-shaped support beams; 1111-I-steel; 1112-arc-shaped side sealing plates; 1113-arc beam; 112-transverse support beams; 1121—end support beams; 1122-main support beams; 113-a transfer junction; 114-a first jacking component; 115-fixing rib plates; 116-supporting blocks; 117-a first connection flange; 118-diagonal support beams; 119-tightly supporting the oil cylinder; 12-a lower support assembly; 121-a support base; 122-connecting legs; 123-a second abutment; 124-abutment support; 125-a third abutment; 126-a second connection flange; 127-first abutment; 13, protecting a rope hanging point; 14-a second jacking component; 2-a transfer vehicle; 21-a vehicle body; 22-a travelling mechanism; 23-lifting driving parts; 24-a rotary drive member; 241-fourth connecting flange; 242-a third connecting flange; 243-linear drive component; 244-a slewing bearing; 3-track; 4-sleeper.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The invention is further described with reference to the drawings and specific examples.

Referring to fig. 1 and 2, an embodiment of the present application provides a detachable tunnel supporting assembly 1, which includes an upper supporting assembly 11 for supporting a portion of an inner wall in a circumferential direction of a tunnel and a lower supporting assembly 12 for supporting another portion of the inner wall in the circumferential direction of the tunnel, wherein the lower supporting assembly 12 and the upper supporting assembly 11 together form a supporting structure adapted to an inner shape of the tunnel.

The upper supporting component 11 and the lower supporting component 12 respectively support the inner wall of the tunnel circumference in a zoned manner, and thus the supporting structure formed by the upper supporting component and the lower supporting component can effectively support the tunnel circumference.

Wherein the upper support assembly 11 is connected to the lower support assembly 12 by at least one first support member 114, and the first support member 114 is detachably connected to the upper support assembly 11 or the lower support assembly 12, so that the upper support assembly 11 and the lower support assembly 12 are detachable from each other. In a specific implementation process, the first propping component 114 is a propping cylinder, the propping cylinder adopts a upside-down manner with a cylinder cavity on top and a rodless cavity on bottom, so that the lower supporting component 12 can be designed more simply, and a transfer vehicle and an electric vehicle can pass through conveniently.

The first jacking component 114 may be mounted on the upper support assembly 11, or may be mounted on the lower support assembly 12, but is not limited thereto, but is required to be detachably connected to the upper support assembly 11 or the lower support assembly 12, so as to be capable of functioning as a separable member for transferring and a liftable member for adjusting the jacking force.

In the embodiment of the present application, a channel through which the transfer truck 2 passes is formed between the upper support assembly 11 and the lower support assembly 12, and the upper support assembly 11 is provided with a transfer connection portion 113 for detachably connecting with the transfer truck 2 to transfer the upper support assembly 11 through the transfer truck 2.

The upper supporting component 11 and the lower supporting component form a frame structure, and the channel formed on the inner side can facilitate the transfer trolley 2 to pass through, so that the transfer trolley 2 is connected with the upper supporting component 11 through the transfer connecting part 113 when the transfer trolley 2 moves right below the upper supporting component 11, and can be conveniently transferred. Of course, the transfer trolley 2 may have two purposes, one is that the upper support component 11 and the lower support component 12 are connected into a whole during installation, and the transfer trolley 2 transfers the upper support component 11 to a position to be supported for supporting, namely, integrally transferring, and the other is that only the upper support component 11 is transferred during the extending process.

Through foretell technical scheme, tunnel supporting component 1 adopts the structure of frame-type and dismouting of being convenient for, when can playing effective support, also can convenient to detach to the support in different positions in tunnel can be realized to cooperation transfer car (buggy) 2, repeatedly usable, for current tunnel supporting trolley, its cost is lower, weight is lighter, the structure is simpler, also the transportation of being convenient for. Moreover, through the structure that first jack-up part 114 can dismantle with lower support subassembly 12 and be connected, both can adjust the support dynamics of two support subassemblies to the tunnel inner wall, also can make the dismouting more convenient between two support subassemblies.

In one embodiment, the first supporting member 114 is disposed on the upper support assembly 11 and located on the inner side of the upper support assembly 11, the first supporting member 114 has a first connection portion, and the lower support assembly 12 has a second connection portion detachably connected to the first connection portion.

The first supporting member 114 may be detachably connected to the second connecting portion of the lower supporting assembly 12 through the first connecting portion, so that the first supporting member is convenient to disassemble and assemble, and the first supporting member may be in flange connection or plug connection, and is not limited.

Further, for better detachable connection, the first supporting member 114 is a hydraulic cylinder, and the first connection portion includes a first connection flange 117 provided at a driving end of the hydraulic cylinder; the second connection part includes a connection leg 122 disposed on the inner side of the lower support assembly 12 and a second connection flange 126 disposed on the top end of the connection leg 122, and the second connection flange 126 is connected with the first connection flange 117 through a fastener. In this way, the hydraulic rod can provide a greater supporting force, so that the upper supporting component 11 and the lower supporting component 12 can be effectively supported, and the hydraulic rod can be detached and conveniently connected under the cooperation of the flange connection structure.

In order to facilitate the better passage of the transfer car (2) through the tunnel support assembly (1), the lower support assembly (12) is further provided with a track (3) parallel to the tunnel length direction, and the transfer car (2) is provided with a running gear (22) adapted to the track (3). Of course, the track 3 needs to be engaged with the track 3 of the other non-supporting area so that the transfer car 2 or the related vehicle can be formed, and since the track 3 of the non-supporting area needs to be provided with the track 3 by the sleeper 4, the inner rail of the lower supporting member is directly provided on the inner wall thereof, so that the track 3 in the lower supporting member 12 can be kept engaged with the track 3 in the non-supporting area.

In some embodiments, the upper support assembly 11 includes an arc-shaped support beam 111 supported in point contact or surface contact with the inner wall of the tunnel and a cross support beam 112 disposed inside the arc-shaped support beam 111; wherein, two ends of the transverse supporting beam 112 are respectively fixed with one first supporting member 114, and the channel is formed among the two first supporting members 114, the transverse supporting beam 112 and the lower supporting assembly 12.

The arc-shaped supporting beam 111 can be directly contacted with the inner wall of the tunnel, namely in surface contact, or can be supported in multiple points by arranging point-shaped supporting parts on the arc-shaped supporting beam 111, and the arc-shaped supporting beam is not limited and can be selectively arranged according to actual requirements. The transverse support beams 112 can make the arc-shaped support beam 111 more stable in structure, and also facilitate the installation of the first support members 114, and the two first support members 114 can support the arc-shaped support beam better.

Specifically, the arc-shaped supporting beam 111 supports the inner wall of the tunnel in point contact; the outer side of the arc-shaped supporting beam 111 is uniformly provided with a plurality of supporting points along the arc-shaped outer edge thereof, and each supporting point is provided with a supporting block 116. Each supporting point is supported at equal intervals in the anticlockwise direction along the arc-shaped outer edge, for example, five supporting points are arranged from right to left, and are sequentially 0 °, 45 °, 90 °, 135 ° and 180 °, so that the support is more effective.

In order to make the first jacking member 114 more stable, a plurality of fixing rib plates 115 are detachably connected between the first jacking member 114 and the arc-shaped support beam 111 on the corresponding side.

In other embodiments, the arc-shaped supporting beam 111 may include a semicircular i-steel 1111 and arc-shaped side sealing plates 1112 fixed on the front and rear sides of the i-steel 1111, so as to form a box structure, so that the rigidity of the arc-shaped side sealing plates 1112 can be improved, and the arc-shaped side sealing plates 1112 on the two sides can play a role of shearing, otherwise, the two fulcrums on the left and right sides cannot use force.

Therefore, the arc-shaped supporting beam 111 is manufactured by adopting the I-steel, so that the arc-shaped supporting beam 111 has reliable strength, can be obtained conveniently, is low in cost and manufacturing difficulty, and can be prevented from being polluted and dirty easily by arranging the arc-shaped side sealing plates and the top sealing plates again, and the overall structure is more stable and has high strength.

In a specific implementation process, two oblique support beams 118 are also symmetrically arranged on the inner side of the arc-shaped support beam 111. The diagonal support beam 118 can improve the stability of the structure of the arc support beam 111 and the support strength.

In some application scenarios, when the tunnel supporting assembly supports a tunnel with a diameter of 6m to 16m, referring to fig. 3, the arc-shaped supporting beam 111 includes at least two arc-shaped beams 1113 detachably connected in sequence, the transverse supporting beam 112 includes a main supporting beam 1122 and end supporting beams 1121 connected to the arc-shaped beams 1113 on both sides, and the end supporting beams 1121 are detachably connected to the main supporting beam 1122; at least one second top support member 14 is detachably connected between each arc-shaped beam and the main support beam, and correspondingly, the size of the lower support assembly is correspondingly changed and matched, so that the supporting force of the whole structure is improved, and more transverse support beams can be added in the longitudinal direction for supporting. That is, only the number of the transverse supporting beams and the vertical supporting cylinders and the flanges are increased, so that the support of the large-diameter tunnel and the oversized-diameter tunnel can be realized, and the problem that the supporting trolley is ultra-long and ultra-wide during transportation can be solved.

With continued reference to fig. 1 and 2, in an embodiment of the present application, the lower support assembly 12 may include a support base 121 and supporting members 124 abutting against two sides of the support base 121, where the supporting members 124 and the support base 121 form a semicircular support structure fitting the inner wall of the tunnel to be supported; the two ends of the upper support assembly 11 in the circumferential direction are respectively provided with a tight-supporting oil cylinder 119, and one end, close to the tight-supporting oil cylinder, of the tight-supporting support piece 124 is provided with a first abutting part 127 in abutting fit with the tight-supporting oil cylinder 119; the upper support assembly 11 is connected to the support base 121 by the first top support member 114.

The lower support assembly 12 is mainly composed of an abutting support 124 and a support base 121, wherein the support base 121 can be connected with the first supporting member 114 through a connecting leg 122 arranged on the support base, the abutting support 124 can be installed on two sides of the supporting base in an abutting manner, and the supporting base can be stabilized to form a semicircular support structure by applying pressure to the supporting base through the abutting cylinder 119. Because the abutting support 124 is also attached to the inner wall of the tunnel, when the longitudinal force is applied to the abutting cylinder 119, the supporting base 121 is abutted against the supporting cylinder by the component force due to the arc-shaped structure, so that the supporting cylinder is stable, and the supporting cylinder can be detached conveniently and can play a high supporting role. Of course, the abutting cylinder 119 may also be provided with a certain inclination, so that the acting component force generated by the abutting cylinder on the abutting support 124 is larger, so that the whole structure is more stable, and the movement in the tunnel is facilitated while the stress requirement is met.

Specifically, two sides of the support base 121 are respectively provided with a second abutting portion 123, one end of the abutting support member 124 facing away from the first abutting portion 127 is provided with a third abutting portion 125, and the third abutting portion 125 is in abutting engagement with the second abutting portion 123, so that the lower support assembly 12 can be detached. The second abutting portion 123 and the second abutting portion 123 are both planes abutting each other, so that the acting area is larger and more stable.

Referring to fig. 4-10, embodiments of the present application can also provide a detachable transport tunnel support system, which includes a transport vehicle 2 and a plurality of groups of detachable transport tunnel support assemblies 1 according to any one of the above-mentioned aspects; the transfer trolley 2 comprises a trolley body 21, the trolley body 21 is provided with a lifting driving part 23, the top of the lifting driving part 23 is connected with a rotating driving part 24, the rotating driving part 24 is provided with a connecting matching part which is used for being detachably connected with the transfer connecting part 113, so that the upper supporting component 11 can rotate by a first angle through the rotating driving part 24, and the first angle is 45-135 degrees.

The lifting driving part 23 of the transfer trolley 2 can adjust the height of the rotary driving part 24, because the height of the upper supporting component 11 connected to the lifting driving part can be adjusted, the height of the lifting driving part can be adjusted in the transfer process, the lifting driving part can be transferred at a more convenient height, and the lifting driving part is also convenient to mount after transfer. The rotation driving part 24 is rotatable about a longitudinal axis, in other words about the axial direction of the lifting driving part 23, so that after it has been connected to the transfer connection 113 of the upper support assembly 11 by means of the connection fitting, it can be rotated by an angle of one of 45-135 deg. for a better passage in the tunnel.

In a preferred embodiment with respect to the rotary drive member 24, the rotary drive member 24 comprises a swivel bearing 244, a third and fourth connecting

flange

242, 241 and a linear drive member 243; wherein, the inner ring of the revolving bearing 244 is connected with the third connecting flange 242 provided at the driving end of the lifting driving part 23, the outer ring of the revolving bearing 244 is connected with the fourth connecting flange 241, the fourth connecting flange 241 is parallel to the third connecting flange 242, and the fourth connecting flange 241 is used for connecting with the transferring connecting part 113; one end of the linear driving member 243 is hinged to a first hinge point of the third connecting flange 242, the other end is hinged to a second hinge point of the fourth connecting flange 241, and the linear driving member 243 is eccentrically disposed so that the upper supporting assembly 11 connected to the fourth connecting flange 241 is rotated by the first angle through the linear driving member 243.

In this way, the third connecting flange 242 can rotate relative to the fourth connecting flange 241 through the revolving bearing 244, and the fourth connecting flange 241 can rotate within a certain angle range, specifically, a first angle within a range of 45 ° -135 ° under the driving of the eccentrically arranged linear driving component 243, so that the posture of the upper supporting component can be adjusted, and the movement of the upper supporting component in the tunnel is facilitated. Specifically, the hinging mode is realized through a hinging shaft arranged at a corresponding hinging point.

In a specific implementation process, the transferring connection portion 113 is a fifth connection flange, and the fifth connection flange is adapted to the fourth connection flange 241; the first angle is 90 °. After the upper support assembly 11 rotates 90 degrees, the length direction of the upper support assembly is parallel to the length direction of the tunnel, so that the upper support assembly is more convenient to transport in the tunnel, and the upper support assembly is more convenient to connect through flange connection. As rotated from point N to point N1 in fig. 6. The linear driving part 243 is located outside the slew bearing 244, and the third connecting flange 242 may be sized larger than the fourth connecting flange 241.

The transfer car 2 has a traveling mechanism 22 capable of traveling on the rail 3 inside the tunnel supporting unit 1, and the rail 3 mounted on the supporting base 121 extends into the station, and in the non-supporting car area, these rails 3 are laid on the sleeper 4, which is a matched transport system in the shield construction.

Referring to fig. 8 and 9, when the upper support assembly 11 in the tunnel needs to be moved from the a position to the B position in fig. 7 for supporting, the support base 121 needs to be mounted in place in the B position in advance, and the track 3 for the transfer trolley 2 to travel is continuously unobstructed. In an actual construction process, the support base 121 is provided with more than the remaining components. After the upper support assembly 11 is supported by the upper support assembly 11, the fourth connecting flange 241 of the transfer truck 2 is connected with the fifth connecting flange, the first connecting flange 117 is disconnected with the second connecting flange 126, the first supporting component 114 is completely retracted, at this time, the lifting driving component 23 of the transfer truck 2 is lowered, the upper support assembly 11 is rotated by 90 degrees together, the transfer truck 2 is transferred to the position B in fig. 7, then the upper support assembly 11 is rotated by 90 degrees, the first connecting flange 117 on the first supporting component 114 is connected with the second connecting flange 126 of the support base 121 at the position B, then the flange connection between the transfer truck and the transverse supporting beam 112 is disconnected, the oil cylinder of the first supporting component 114 is opened, so that the transferred upper support assembly 11 and the lower support assembly 12 at the position perform the function of supporting a tunnel at the position B, and the transfer work is completed, namely, the new tunnel supporting system is supported.

The number and the spacing of the tunnel supporting components 1 are formulated according to actual needs, the length of a tunnel which needs to be supported by some projects is 3 times that of a main machine of the shield tunneling machine, and each ring pipe piece needs to be provided with a supporting trolley.

In order to improve safety, a protection rope hanging point 13 can be arranged on the inner side of the top of the arc-shaped supporting beam, a steel wire rope can be conveniently connected through the protection rope hanging point 13, the steel wire rope is hung on a tunnel pipe piece, the problem that a tunnel supporting trolley, namely a tunnel supporting assembly, can topple over when a jacking oil cylinder loses pressure is prevented, and a similar supporting oil cylinder hydraulic pipeline and a similar joint need to be made of high-quality materials and good manufacturing technology so as to eliminate the important risks of oil leakage of an oil pipe and support loss of pressure.

Referring to fig. 8-10, an embodiment of the present application further provides a method for supporting and transporting a tunnel in an overlapping manner, where the method is based on a detachable transportation tunnel supporting system according to any one of the above technical solutions, and includes the following steps:

step S1: sequentially installing a plurality of groups of detachable transport tunnel supporting components 1 at each tunnel position to be supported in the downlink tunnel according to the design until the arrangement length of the tunnel supporting components 1 meets the requirements of shield construction, and at the moment, starting the construction of the uplink tunnel;

Step S2: when an uplink tunnel is constructed, transferring the tunnel supporting component 1 in the downlink tunnel to extend;

the method comprises the following steps of transferring and extending the tunnel supporting component 1 in the downlink tunnel during construction of the uplink tunnel, wherein the method comprises the following steps of:

step S21: the transfer trolley 2 is stopped under a transfer connecting part 113 of the tunnel supporting component 1 to be transferred, and the transfer connecting part 113 is connected with the transfer trolley 2;

step S22: releasing the connection between the lower support member and the first jack member 114 and between the tightening cylinder 119 and the abutment support 124, and retracting the first jack member 114;

step S23: the transfer trolley 2 is controlled to move to a place where the space of the adjacent tunnel is free, and then the upper support assembly 11 connected to the transfer trolley 2 is rotated by 45-135 degrees from the initial state to the transfer state by the linear driving part 243, so that the transfer in the tunnel is easy;

step S24: transferring the upper support assembly 11 to the next position to be supported and the lower support assembly 12 is arranged through the transfer trolley 2, and rotating the upper support assembly 11 connected to the transfer trolley 2 to an initial state, in the initial state, making the upper support assembly 11 upwards approach to the inner wall of the tunnel through the lifting support part of the transfer trolley 2, then connecting the first top support part 114 with the lower support part, and simultaneously releasing the connection between the transfer trolley 2 and the upper support assembly 11; in this step, the tunnel components can be transported to the vicinity of the target position, rotated back and then transported to the target position, so that the operation is more convenient, and mutual interference between the tunnel components is avoided.

Step S25: the first jacking component 114 is operated to support the upper support assembly 11 and the associated lower support assembly 12 within the tunnel.

Further, step S1 sequentially installs a plurality of groups of detachable tunnel supporting components 1 at each tunnel position to be supported in the downlink tunnel according to the design until the arrangement length of the tunnel supporting components 1 meets the requirement of shield construction, and at this time, the construction of the uplink tunnel can be started, which comprises the following steps:

step S11: assembling the upper support assembly 11 of the detachably transferred tunnel support assembly 1, connecting the first top support part 114 of the upper support assembly 11 with the support base 121 of the lower support assembly 12, and transporting the same to a position to be supported in the tunnel by the transfer trolley 2;

step S12: at the position to be supported, installing the abutting support pieces 124, and enabling the two abutting support pieces 124 to be respectively and tightly connected with two sides of the support base 121;

step S13: pressing the abutting support 124 through the abutting oil cylinder 119 of the upper support assembly 11, and locking the abutting oil cylinder 119 after the pressure of the abutting oil cylinder 119 meets the requirement, so that the installation of the first group of tunnel support assemblies 1 is completed;

step S14: and repeating the steps, and installing a plurality of groups of tunnel supporting components 1 along the length direction of the tunnel until the arrangement length of the tunnel supporting components 1 meets the requirement of shield construction, wherein the construction of the uplink tunnel can be started at the moment.

When the support bases 121 in front of the tunnel are not used enough, the support bases 121 in back of the tunnel need to be removed intensively, then the support bases 121 are installed at positions in front of the tunnel, which need to be supported, at the same time, sleeper 4 in the tunnel needs to be laid in back of the tunnel, then rails 3 are laid on the sleeper 4, and the rails 3 are fully communicated with the rails 3 below the tunnel support assembly 1 at the same time.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tunnel supporting component that can dismantle transportation, its characterized in that: the device comprises an upper supporting component for supporting one part of the inner wall in the circumferential direction of the tunnel and a lower supporting component for supporting the other part of the inner wall in the circumferential direction of the tunnel, wherein the lower supporting component and the upper supporting component jointly form a supporting structure matched with the inner shape of the tunnel;

2. A detachable transport tunnel support assembly according to claim 1, wherein: the first propping component is arranged on the upper supporting component and is positioned on the inner side of the upper supporting component, the first propping component is provided with a first connecting part, and the lower supporting component is provided with a second connecting part which is detachably connected with the first connecting part.

3. A detachable transport tunnel support assembly according to claim 2, wherein: the first supporting component is a hydraulic cylinder, and the first connecting part comprises a first connecting flange arranged at the driving end of the hydraulic cylinder;

4. A detachable transport tunnel support assembly according to claim 1, wherein: the lower support assembly is provided with a track parallel to the length direction of the tunnel, and the transfer trolley is provided with a running mechanism matched with the track.

5. A detachable transport tunnel support assembly according to claim 1, wherein: the upper supporting component comprises an arc supporting beam which is supported by point contact or surface contact with the inner wall of the tunnel and a transverse supporting beam which is arranged on the inner side of the arc supporting beam;

6. A detachable transport tunnel support assembly according to claim 5, wherein: the arc-shaped supporting beams support the inner wall of the tunnel in a point contact manner;

7. A detachable transport tunnel support assembly according to claim 6, wherein: a plurality of fixed rib plates are detachably connected between the first top support component and the arc-shaped support beam at the corresponding side.

8. A detachable transport tunnel support assembly according to claim 5, wherein: the arc-shaped support beam comprises semicircular I-steel, arc-shaped side sealing plates fixed on the front side and the rear side of the I-steel, and a top sealing plate fixed between the outer edges of the two arc-shaped side sealing plates.

9. A detachable transport tunnel support assembly according to claim 5, wherein: two oblique support beams are symmetrically arranged on the inner side of the arc-shaped support beam.

10. A detachable transport tunnel support assembly according to claim 5, wherein: the tunnel supporting assembly is applied to a large-diameter tunnel;

11. A demountable transport tunnel support assembly according to any one of claims 1-10, wherein: the lower support assembly comprises a support base and abutting support pieces abutting against two sides of the support base, and the abutting support pieces and the support base form a semicircular support structure which is attached to the inner wall of a supported tunnel;

12. A detachable transport tunnel support assembly according to claim 11, wherein: the two sides of the support base are respectively provided with a second abutting part, one end of the abutting support piece, which deviates from the first abutting part, is provided with a third abutting part, and the third abutting part is in abutting fit with the second abutting part, so that the lower support assembly can be disassembled.

13. A tunnel supporting system capable of being detached and transported, which is characterized in that: a tunnel support assembly comprising a transfer trolley and a plurality of sets of a removable transfer as claimed in any one of claims 1 to 12;

14. A detachable transport tunnel support system according to claim 13, wherein: the rotary driving part comprises a rotary bearing, a third connecting flange, a fourth connecting flange and a linear driving part;

15. A detachable transport tunnel support system according to claim 14, wherein: the transfer connecting part is a fifth connecting flange, and the fifth connecting flange is matched with the fourth connecting flange;

the first angle is 90 °.

16. A method of transferring tunnel supports in a stack, based on a removable transfer tunnel support system according to any of claims 12-15, characterized in that: the method comprises the following steps:

the method comprises the following steps of:

17. The method for supporting and transporting the tunnel in the overlapping mode according to claim 16, wherein: sequentially installing a plurality of groups of detachable transport tunnel supporting components at each tunnel position to be supported in the downlink tunnel according to the design until the arrangement length of the tunnel supporting components meets the requirements of shield construction, and at the moment, starting the construction of the uplink tunnel, wherein the method comprises the following steps: