CN107268676B - Transporting and assembling system and method for upper section of prefabricated underground passage - Google Patents
Transporting and assembling system and method for upper section of prefabricated underground passage Download PDFInfo
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- CN107268676B CN107268676B CN201710518851.9A CN201710518851A CN107268676B CN 107268676 B CN107268676 B CN 107268676B CN 201710518851 A CN201710518851 A CN 201710518851A CN 107268676 B CN107268676 B CN 107268676B
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- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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Abstract
The invention discloses a moving, transporting and assembling system and a moving, transporting and assembling method for an upper section of a prefabricated underground passage, aiming at the problem that the control difficulty of site large-scale hoisting construction safety risk is high in underground passage engineering construction with narrow construction site and strict environmental protection requirement. The moving and assembling method comprises the following steps: installing a moving and transporting assembly system in the inner cavity of the lower part structure of the underground passage which is pushed in place, jacking the upper sections of the underground passage and moving and transporting in place, placing the upper sections of the underground passage on the corresponding lower sections and connecting, carrying out prestress tensioning on the sections and connecting the upper sections and the lower sections to form an integral underground passage structure, backfilling the upper part of the underground passage structure, covering soil and recovering the original ground road sections.
Description
Technical Field
The invention relates to the technical field of underground engineering construction, in particular to a system and a method for moving, transporting and assembling an upper section of a prefabricated underground passage.
Background
At present, the prefabricated underground passage structure is constructed in a mode of factory subsection prefabrication → field integral subsection hoisting → prestress application and integration, and is mainly suitable for construction of the underground passage structure with lighter weight of subsection prefabricated parts and larger hoisting construction space; moreover, the normal work of the large-scale hoisting equipment needs to occupy more construction space, which brings many problems to the urban road construction with increasingly tense land, such as large influence on the surrounding environment, huge removal compensation cost and the like.
Disclosure of Invention
The construction method aims at the problems that in the underground passage engineering construction with narrow construction site and strict environmental protection requirement, the weight of the underground passage structure sectional prefabricated part is still very large, and the control difficulty of the safety risk of large-scale hoisting construction on site is large. The invention aims to provide a system and a method for transporting and assembling upper sections of prefabricated underground passages.
The technical scheme adopted by the invention for solving the technical problems is as follows: the prefabricated assembled underground passage upper section moving and assembling system is characterized in that an underground passage structure is vertically divided into a plurality of sections in advance before construction, each section is transversely divided into an underground passage upper section and an underground passage lower section, a plurality of sections of the underground passage upper section and the underground passage lower section are prefabricated and processed, the underground passage lower sections are sequentially pushed in to be in place through a pushing system to be assembled into an underground passage lower structure, the moving and assembling system comprises a supporting main body, a self-propelled sliding rail, a vertical adjusting mechanism and a horizontal adjusting mechanism, the self-propelled sliding rail is installed on a bottom plate of the underground passage lower structure, the supporting main body is erected above the self-propelled sliding rail according to the clearance of the underground passage structure, and the vertical adjusting mechanism and the horizontal adjusting mechanism are respectively installed at the top end and the side surface of the supporting main body, so that the vertical adjusting mechanism and the horizontal adjusting mechanism are pressed against the inner wall of the upper section of the underground passage.
Preferably, the support main body of the moving and transporting assembly system is formed by vertically assembling a plurality of standard sections, each standard section is a cuboid truss structure formed by welding profile steel rods, and every two adjacent standard sections are connected through bolts.
Preferably, the vertical adjusting mechanism and the horizontal adjusting mechanism of the moving and assembling system both adopt hydraulic cylinder structures, and the vertical adjusting mechanism and the horizontal adjusting mechanism are both connected with the control system.
Preferably, a roller is further mounted at the top of the vertical adjusting mechanism.
Preferably, the self-propelled sliding rail of the moving and assembling system is provided with a hydraulic or electric power device.
Preferably, the moving, transporting and assembling system further comprises a vertical positioning device, the vertical positioning device comprises a second laser receiver and a second laser transmitter, the second laser receiver is installed on the edge of the lower section of the underground passage in place, the second laser transmitter is installed on the edge of the upper section of the underground passage, and the second laser receiver and the second laser transmitter are both connected with the control system.
In addition, the invention also provides a moving and assembling method of the upper section of the prefabricated underground passage, which comprises the following steps:
s101: constructing an enclosure structure of an underground passage, carrying out earth excavation and reinforced concrete supporting structure construction in batches, pouring a reinforced concrete cushion layer, paving a bottom layer slide rail on the reinforced concrete cushion layer, carrying out jacking system rear-leaning structure reinforcement construction in a working well, constructing a jacking system, checking the jacking system, sequentially jacking lower sections of the underground passage in place through the jacking system after a pre-jacking test meets requirements, and dismantling a reinforced concrete support close to the reinforced concrete cushion layer;
s102: installing the transfer and assembly system as claimed in any one of claims 1 to 6 in the inner cavity of the underground passage lower section which is jacked in place, installing self-propelled sliding rails on the bottom plate of the underground passage lower structure, erecting a supporting body above the self-propelled sliding rails according to the clearance of the underground passage structure, installing a vertical adjusting mechanism and a horizontal adjusting mechanism on the top end and the side surface of the supporting body respectively and pre-pressurizing, hoisting an underground passage upper section in a working well and placing on the supporting body, so that the vertical adjusting mechanism and the horizontal adjusting mechanism are abutted against the inner wall of the underground passage upper section;
s103: starting the vertical adjusting mechanism to jack the upper section of the underground passage, wherein the jacking distance meets the construction requirements of moving, transporting and assembling, starting a power device of the self-propelled sliding rail, moving and transporting the upper section of the underground passage in place, accurately positioning through the vertical adjusting mechanism and the horizontal adjusting mechanism, placing the upper section of the underground passage on the corresponding lower section of the underground passage, connecting, repeating the steps, and sequentially transporting a plurality of sections of the upper section of the underground passage to a preset position through the moving, transporting and assembling system and assembling in place;
s104: and after the assembly construction of the upper sections of the underground passage is completed, carrying out prestress tensioning on the sections, connecting the upper sections of the underground passage with the lower sections of the underground passage to form an integral underground passage structure, finally removing the reinforced concrete supports far away from the reinforced concrete cushion layer, backfilling the upper soil of the underground passage structure and recovering the original ground road sections.
Preferably, in step S101, a pushing, deviation-rectifying and support-replacing system is installed on the lower section of the underground passage, the pushing, deviation-rectifying and support-replacing system includes a lifting support and an axial force adjusting device which are arranged between the envelope and the lower section of the underground passage, and an inclined adjusting mechanism which is supported between the side wall of the lower section of the underground passage and the bottom plate, a power traveling device is installed at the bottom of the lifting support, the axial force adjusting device is arranged on the lifting support, and the inclined adjusting mechanism includes a reaction base which is installed on the bottom plate of the lower section of the underground passage, an adjusting rod and a force transmission rod which are sequentially installed on the reaction base.
Preferably, the pushing deviation-rectifying support-replacing system further comprises a horizontal positioning system, the horizontal positioning system comprises a first laser receiver arranged on the bottom plate of the lower structure of the underground passage installed in place and a first laser transmitter arranged on the bottom plate of the lower section of the underground passage to be jacked for construction, and the first laser receiver and the first laser transmitter are both connected with the control system.
Preferably, one end of the horizontal adjusting mechanism, which is close to the upper section of the underground passage, is provided with a first reinforcing batten plate, one end of the axial force adjusting device, which is close to the enclosure structure, is provided with a second reinforcing batten plate, and a third reinforcing batten plate is arranged between an adjusting rod and a counter force base of the oblique adjusting mechanism.
The invention has the following effects:
the prefabricated assembled underground passage upper section moving and assembling system is characterized in that an underground passage upper section is stably fixed on the upper part of a supporting main body through a vertical adjusting mechanism and a horizontal adjusting mechanism, the supporting main body is driven by a self-propelled sliding rail to move along the bottom surface of an underground passage lower section, and then a plurality of sections of underground passage upper sections are conveyed to preset positions, so that the assembly of the underground passage upper section and the underground passage lower section is sequentially completed; the moving, transporting and assembling system is convenient to operate and control, and construction safety is guaranteed; the limit requirement of the traditional large hoisting machinery on the construction site is avoided, the disturbance influence of the engineering construction on the surrounding environment is reduced, the huge removal compensation cost caused by the increase of the construction site is reduced, and the comprehensive cost of the engineering construction is reduced.
The prefabricated assembled underground passage upper section moving and assembling method includes the steps of firstly, sequentially jacking and positioning a plurality of sections of underground passage lower sections through a jacking system to assemble an underground passage lower structure, installing a moving and assembling system in the completed underground passage lower structure to assemble the underground passage upper sections, stably fixing the underground passage upper sections on a supporting main body by installing a vertical adjusting mechanism and a horizontal adjusting mechanism between the supporting main body and the underground passage upper sections, sequentially conveying the underground passage upper sections to preset positions by utilizing self-propelled sliding rails arranged at the bottom of the supporting main body, assembling the underground passage upper sections with the corresponding underground passage lower sections in position and connecting the underground passage lower sections into an integral underground passage structure. Different from the construction process of the existing underground passage upper structure full-section hoisting, the transfer assembly method of the invention conveys the upper sections of the plurality of sections of underground passages to a preset position through a transfer assembly system for assembly, and the vertical adjusting mechanism and the horizontal adjusting mechanism of the transfer assembly system can be linked with a control system, thereby improving the assembly efficiency and the assembly precision of the upper sections of the underground passages and the lower sections of the underground passages to a certain extent; the height of the moving, transporting and assembling system is adjusted according to the dynamic stress characteristics of the building enclosure, so that the phenomenon that the building enclosure is not supported in the traditional support dismantling process is avoided, and the engineering construction risk is reduced; in conclusion, on the premise of ensuring the engineering construction quality and safety, the moving, transporting and assembling method of the upper section of the prefabricated underground passage improves the engineering construction efficiency, reduces the engineering construction risk, furthest reduces the adverse effect of the construction of the underground passage in the urban core area on the existing traffic operation, is beneficial to market popularization and application, has important guiding significance for realizing informatization, green and intelligent underground space construction, improves the urban operation efficiency, and has remarkable comprehensive economic and social benefits.
Drawings
FIG. 1 is a schematic structural view of an enclosure and a reinforced concrete support of an underground passageway according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the installation of underpasses in an underground tunnel in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of an embodiment of the present invention in which a pushing, deviation-correcting, and support-changing system is installed in the underpart of the underground tunnel;
FIG. 4 is a schematic illustration of a system for installing a transport assembly system within the underpinning of an underpinning to assemble an upper section of the underpinning in accordance with an embodiment of the present invention;
FIG. 5 is a cross-sectional view of FIG. 4;
figure 6 is a schematic illustration of a horizontal positioning system installed in the underpass infrastructure in accordance with an embodiment of the present invention.
The numbers in the figures are as follows:
an enclosure structure 1; a first reinforced concrete support 2; a second reinforced concrete support 3; a reinforced concrete cushion layer 4; a bottom layer slide rail 5; a reclining structure 6; a jacking system 7; replacing the top iron 8; a lower section 10 of the underpass; an underpass upper section 20; a support body 50; a self-propelled slide rail 51; a vertical adjustment mechanism 52; a roller 53; a horizontal adjustment mechanism 54; a reinforcing gusset plate one 55; a lifting bracket 31; a power traveling device 32; an axial force adjusting device 33; a second reinforcing gusset plate 33 a; an inclination adjusting mechanism 35; a reaction base 35 a; an adjustment lever 35 b; a force transfer bar 35 c; a third reinforcing gusset plate 35 d; a vertical positioning device 36; a laser receiver 36 a; a laser transmitter 36 b; a horizontal positioning system 60; a first laser receiver 60 a; laser emitter one 60 b.
Detailed Description
The present invention provides a system and method for transporting and assembling an upper section of a prefabricated underground tunnel, which is described in detail below with reference to the accompanying drawings and embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.
The first embodiment is as follows: the underground passage structure of the embodiment is a double-hole underground passage with a rectangular longitudinal section, which is convenient for prefabricating and processing the underground passage structure, the underground passage structure is vertically divided into a plurality of sections before construction, each section is transversely divided into an upper section 20 of the underground passage and a lower section 10 of the underground passage, the upper section 20 of the underground passage and the lower section 10 of the underground passage are prefabricated and processed respectively according to design requirements, the lower sections 10 of the underground passage are sequentially pushed into position by a jacking system 7 to be spliced into the lower structure of the underground passage, the following describes a moving and assembling system of the prefabricated upper section of the underground passage with reference to figure 4, the moving and assembling system comprises a support main body 50, a self-propelled sliding rail 51, a vertical adjusting mechanism 52 and a horizontal adjusting mechanism 54, the self-propelled sliding rail 51 is arranged on a bottom plate of the lower structure of the underground passage, erecting a supporting main body 50 above a self-propelled sliding rail 51 according to the clearance of the underground passage structure, and respectively installing a vertical adjusting mechanism 52 and a horizontal adjusting mechanism 54 at the top end and the side surface of the supporting main body 50, so that the vertical adjusting mechanism 52 and the horizontal adjusting mechanism 54 are abutted against the inner wall of the upper section 20 of the underground passage; the moving, transporting and assembling system stably fixes the upper section 20 of the underground passage on the upper part of the supporting main body 50 through the vertical adjusting mechanism 52 and the horizontal adjusting mechanism 54, the supporting main body 50 runs along the bottom surface of the lower section 10 of the underground passage under the driving of the self-propelled sliding rail 51, and then the upper sections 20 of the plurality of sections of underground passages are transported to preset positions, so that the assembling of the upper sections 20 of the underground passage and the lower sections 10 of the underground passage is sequentially completed; the moving, transporting and assembling system is convenient to operate and control, and construction safety is guaranteed; the limit requirement of the traditional large hoisting machinery on the construction site is avoided, the disturbance influence of the engineering construction on the surrounding environment is reduced, the huge removal compensation cost caused by the increase of the construction site is reduced, and the comprehensive cost of the engineering construction is reduced.
With continued reference to fig. 4, the support body 50 of the transportation and assembly system is vertically assembled by a plurality of standard sections, the standard sections are of rectangular truss structures formed by welding profile steel rods, the structure is more stable, two adjacent standard sections are connected by bolts, the quick assembly and disassembly are convenient, and the adjustment can be performed according to the clear height of an underground passage structure; the vertical adjusting mechanism 52 is of a hydraulic cylinder structure and is connected with a control system (not shown in the figure), the vertical adjusting mechanism 52 mainly supports the weight of the upper section 20 of the underground passage and can finely adjust the height of the upper section 20 of the underground passage to keep the same horizontal; the horizontal adjusting mechanism 54 is of a hydraulic cylinder structure and is connected with the control system, the horizontal adjusting mechanism 54 can adjust the width to adapt to the distance between the side surface of the supporting main body 50 and the inner wall of the side surface of the upper section 20 of the underground passage, so that the upper section 20 of the underground passage is stably fixed on the supporting main body 50, and therefore, the horizontal displacement of the upper section 20 of the underground passage can be realized by moving the supporting main body 50; the self-propelled sliding rails 51 are installed on the bottom plate of the lower section 10 of the underground passage constructed in place, the top ends of the self-propelled sliding rails 51 are connected with the supporting main body 50, and the self-propelled sliding rails 51 are provided with hydraulic or electric power devices, so that the supporting main body 50 can be moved forwards and backwards. It should be noted that the structure and connection relationship of the control system described above are the prior art and are not described herein again.
Preferably, the top of the vertical adjusting mechanism 52 is further provided with a roller 53, and in the process of placing the hoisted upper section 20 of the underground passage on the top end of the supporting body 50, the arrangement of the roller 53 reduces the frictional resistance between the upper section 20 of the underground passage and the vertical adjusting mechanism 52, thereby being more beneficial to the rapid and safe positioning of the upper section 20 of the underground passage on the top end of the supporting body 50.
As shown in fig. 4, the transportation and assembly system further comprises a vertical positioning device 36, the vertical positioning device 36 comprises a second laser receiver 36a and a second laser emitter 36b, the second laser receiver 36a and the second laser emitter 36b are respectively installed on the edge of the positioned lower section 10 of the underground passage, and the second laser emitter 36b and the second laser receiver 36a are both connected with the control system; and the position signal transmitted by the second laser transmitter 36b is received by the second laser receiver 36a and is transmitted to the control system, the control system judges whether the position signal of the upper section 20 of the underground passage meets the construction requirement, and when the position signal does not meet the construction requirement, the control system sends a signal and is linked with the horizontal adjusting mechanism 54 and the vertical adjusting mechanism 52, so that the position of the upper section 20 of the underground passage is adjusted, and the accurate positioning and assembly of the upper section 20 of the underground passage and the lower section 10 of the underground passage are realized.
Example two: the method for transporting and assembling the upper section of the prefabricated underground passage is described below with reference to fig. 1 to 6, and the specific construction steps are as follows:
s101: as shown in fig. 1, constructing an enclosure structure 1 of an underground passage, performing earth excavation and support structure construction in batches, and pouring a reinforced concrete cushion layer 4, specifically, constructing the enclosure structure 1 of the underground passage in advance, performing a first batch of earth excavation, constructing a first reinforced concrete support 2, performing a second batch of earth excavation after the first reinforced concrete support 2 reaches the strength required by design, and performing a second reinforced concrete support 3 after the first reinforced concrete support 2 is completed; after the second reinforced concrete support 3 is formed, performing a third batch of earth excavation, and pouring a reinforced concrete cushion layer 4 after the excavation is performed to the substrate; as shown in fig. 2 and 5, a bottom layer slide rail 5 is laid on a reinforced concrete cushion 4, a jacking system 7 is reinforced by a backing structure 6 in a working well, and the jacking system 7 is built; checking a jacking system 7, after a pre-jacking test meets requirements, hoisting a prefabricated first section of underground passage lower section 10 and placing the prefabricated first section of underground passage lower section 10 on a bottom layer slide rail 5 in a working well, installing a replacement top iron 8 between the jacking system 7 and the first section of underground passage lower section 10, jacking the first section of underground passage lower section 10 forwards to enable the second section of underground passage lower section 10 to be safely hoisted, retracting the jacking system 7, placing the second section of underground passage lower section 10 on the bottom layer slide rail 5 and installing the replacement top iron 8 again, starting the jacking system 7 to simultaneously jack the second section of underground passage lower section 10 and the first section of underground passage lower section 10 forwards, repeating the steps, sequentially jacking the sections of underground passage lower sections 10 in place through the jacking system 7, and dismantling a second reinforced concrete support 3;
s102: as shown in fig. 4 and 5, a moving and transporting assembly system is installed in an inner cavity of a lower section of the underground passage which is jacked in place, a self-propelled sliding rail 51 is installed on a bottom plate of a lower structure of the underground passage, a supporting body 50 is erected above the self-propelled sliding rail 51 according to the clearance of the underground passage structure, a vertical adjusting mechanism 52 and a horizontal adjusting mechanism 54 are respectively installed at the top end and the side surface of the supporting body 50 and are pre-pressurized, an upper section 20 of the underground passage is hoisted in a working well and is placed on the supporting body 50, so that the vertical adjusting mechanism 52 and the horizontal adjusting mechanism 54 are abutted against the inner wall of the upper section 20 of the underground passage;
s103: starting the vertical adjusting mechanism 52, lifting the upper section 20 of the underground passage upwards, wherein the lifting distance meets the construction requirements of moving, transporting and assembling, starting a power device (not shown) of the self-propelled sliding rail 51, moving the upper section 20 of the underground passage in place, performing accurate positioning through the vertical adjusting mechanism 52 and the horizontal adjusting mechanism 54, slowly lowering the upper section 20 of the underground passage and placing the upper section 20 of the underground passage on the corresponding lower section 10 of the underground passage, grouting and sleeving the upper section 20 of the underground passage and reserved steel bars of the lower section 10 of the underground passage, repeating the steps, and sequentially transporting the upper sections 20 of the plurality of sections of underground passages to a preset position through the moving, transporting and assembling system and assembling the sections in place;
s104: after the assembly construction of the upper section 20 and the lower section 10 of the underground passage is completed, prestress tensioning is carried out on the sections, the upper section 20 and the lower section 10 of the underground passage are connected to form an integral underground passage structure, finally, the first reinforced concrete support 2 is dismantled, earth is filled above the underground passage structure, and the original ground road sections are recovered.
The invention relates to a method for transporting and assembling upper sections of prefabricated underground passages, which comprises the steps of firstly sequentially ejecting a plurality of sections of lower sections 10 of underground passages to be in place through an ejecting system 7, installing a transporting and assembling system in a completed lower structure of the underground passages to carry out assembling construction of the upper sections 20 of the underground passages, stably fixing the upper sections 20 of the underground passages on a supporting main body 50 by installing a vertical adjusting mechanism 52 and a horizontal adjusting mechanism 54 between the supporting main body 50 and the upper sections 20 of the underground passages, then sequentially transporting the upper sections 20 of the underground passages to preset positions by utilizing self-propelled sliding rails 51 arranged at the bottom of the supporting main body 50, and assembling the upper sections 20 of the underground passages with the corresponding lower sections 10 of the underground passages to be in place and connecting the lower sections of the underground passages into. Different from the construction process of the existing underground passage upper structure full-section hoisting, the transfer assembly method of the invention conveys the multi-section underground passage upper section 20 to a preset position through a transfer assembly system for assembly, and the vertical adjusting mechanism 52 and the horizontal adjusting mechanism 54 of the transfer assembly system can be linked with a control system, thereby improving the assembly efficiency and the assembly precision of the underground passage upper section 20 and the underground passage lower section 10 to a certain extent; the height of the moving, transporting and assembling system is adjusted according to the dynamic stress characteristics of the building enclosure 1, so that the phenomenon that the building enclosure 1 is unsupported in the traditional support dismantling process is avoided, and the engineering construction risk is reduced; in conclusion, on the premise of ensuring the engineering construction quality and safety, the moving, transporting and assembling method of the upper section of the prefabricated underground passage improves the engineering construction efficiency, reduces the engineering construction risk, furthest reduces the adverse effect of the construction of the underground passage in the urban core area on the existing traffic operation, is beneficial to market popularization and application, has important guiding significance for realizing informatization, green and intelligent underground space construction, improves the urban operation efficiency, and has remarkable comprehensive economic and social benefits.
The step S101 further includes: as shown in fig. 3, a pushing, deviation-rectifying and support-replacing system is installed on the lower section 10 of the underground passage, and the pushing, deviation-rectifying and support-replacing system comprises a lifting support 31 and an axial force adjusting device 33 which are arranged between the envelope 1 and the lower section 10 of the underground passage from bottom to top, and an inclined adjusting mechanism 35 which is supported between the side wall of the lower section 10 of the underground passage and the bottom plate and can realize axial force adjustment; the lifting support 31 can adjust the support changing height according to the deformation and force transmission characteristics of the building enclosure 1, and the power walking device 32 arranged at the bottom of the lifting support 31 can adjust the horizontal position of the lifting support 31 according to specific working conditions; the axial force adjusting device 33 realizes a linear correction function in the jacking process through a displacement telescopic function thereof; the slant adjusting mechanism 35 is arranged between the inner wall of the lower section 10 of the underground passage and the bottom plate, and comprises a counter-force base 35a, an adjusting rod 35b and a force transmission rod 35c, the counter-force base 35a is firstly arranged on the bottom plate of the lower section 10 of the underground passage, the adjusting rod 35b and the force transmission rod 35c are sequentially arranged on the counter-force base 35a, the adjusting rod 35b is of a hydraulic cylinder structure, preliminary pressurization is carried out after the axial force adjusting device 33 and the slant adjusting mechanism 35 are arranged in place, after the pushing deviation rectifying and support replacing system is ensured to be stably pressurized, support replacing axial force adjustment is carried out according to the deformation, stress characteristics, pushing linearity and other factors of the enclosure structure 1, the slant adjusting mechanism 35 can realize real-time adjustment of the axial force, real-time correction of the deformation of the outer wall of the lower section 10 of the underground passage can be realized by matching with the axial force adjusting device, and (3) improving the assembly efficiency of the upper section 20 and the lower section 10 of the underground passage, and finally, dismantling the second reinforced concrete support 3. The pushing, correcting and support replacing system can reduce the height of a cantilever of the enclosure structure 1 in the process of dismantling the reinforced concrete support and reduce the construction risk; the pushing, deviation-rectifying and support-replacing system can adapt to the dynamic stress characteristics of the building envelope 1 in the construction process, realize the active control of the jacking linearity, the structural deformation and the hole site butting process, and optimize the segmental jacking construction process of the underground prefabricated structure; moreover, the pushing, deviation-rectifying and support-replacing system is high in installation speed, can realize cyclic utilization and accords with the design concept of green sustainable development in the building field of China.
As shown in fig. 6, the pushing deviation rectifying support replacing system further comprises a horizontal positioning system 60, which comprises a first laser receiver 60a arranged on the bottom plate of the lower structure of the underground passage installed in position, and a first laser emitter 60b arranged on the bottom plate of the lower section 10 of the underground passage to be jacked, wherein the first laser receiver 60a and the first laser emitter 60b are both connected with the control system; the horizontal position signal transmitted by the first laser transmitter 60b is received by the first laser receiver 60a and transmitted to the control system, the control system judges whether the horizontal position signal of the upper section 20 of the underground passage meets the construction requirement, when the horizontal position signal does not meet the construction requirement, the control system sends a signal and is linked with the jacking system 7 to realize real-time adjustment of jacking linearity, and the axial force adjusting device 33 and the inclined adjusting mechanism 35 are linked with the horizontal positioning system 60 to realize active deviation correction of jacking displacement, so that the engineering construction quality is ensured.
In addition, according to the size of the space between the underground passage upper section 20 and the support main body 50, one end of the horizontal adjusting mechanism 54 close to the underground passage upper section 20 can be provided with a first reinforcing batten plate 55, according to the size of the construction space between the enclosure structure 1 and the underground passage lower structure, one end of the axial force adjusting device 33 close to the enclosure structure 1 can be provided with a second reinforcing batten plate 33a, and the horizontal positions of the underground passage upper section 20 and the underground passage lower section 10 can be further adjusted by adjusting the lengths of the first reinforcing batten plate 55 and the second reinforcing batten plate 33 a; similarly, a third reinforcing gusset plate 35d is provided between the adjustment lever 35b and the reaction base 35a of the reclining mechanism 35, and the length of the reclining mechanism 35 can be adjusted by the third reinforcing gusset plate 35d according to the size of the reserved space.
As shown in fig. 5, the back structure may be a thick iron plate or a steel structure abutting against the tail of the jacking system 7, and the back structure is perpendicular to the jacking axis of the jacking system 7, so that the back structure can transmit the counter force of the thrust of the jacking system 7 to the soil body relatively uniformly, and the envelope structure 1 is prevented from being damaged.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (1)
1. The moving and assembling method of the upper section of the prefabricated underground passage comprises the following steps:
s101: constructing an enclosure structure of an underground passage, carrying out earth excavation and reinforced concrete supporting structure construction in batches, pouring a reinforced concrete cushion layer, paving a bottom layer slide rail on the reinforced concrete cushion layer, carrying out jacking system rear-leaning structure reinforcement construction in a working well, building a jacking system, checking the jacking system, jacking lower sections of a plurality of underground passages in sequence through the jacking system to be in place after a pre-jacking test meets requirements, mounting a jacking deviation-correcting support-changing system on the lower sections of the underground passages, wherein the jacking deviation-correcting support-changing system comprises a lifting support and an axial force adjusting device which are arranged between the enclosure structure and the lower sections of the underground passages, and an oblique adjusting mechanism which is supported between the side wall of the lower sections of the underground passages and a bottom plate, the bottom of the lifting support is provided with a power walking device, and the axial force adjusting device is arranged on the lifting support, the inclined adjusting mechanism comprises a counter-force base arranged on a bottom plate of a lower section of the underground passage, an adjusting rod and a force transmission rod piece which are sequentially arranged on the counter-force base, and a reinforced concrete support close to the reinforced concrete cushion layer is dismounted; the pushing, deviation-rectifying and support-replacing system also comprises a horizontal positioning system which comprises a first laser receiver arranged on a bottom plate of a lower structure of the underground passage which is installed in place and a first laser transmitter arranged on a bottom plate of a lower section of the underground passage to be jacked for construction, wherein the first laser receiver and the first laser transmitter are both connected with a control system;
s102: installing a moving and assembling system in an inner cavity of the lower section of the underground passage which is jacked in place, wherein the moving and assembling system comprises a supporting main body, a self-propelled sliding rail, a vertical adjusting mechanism and a horizontal adjusting mechanism, the self-propelled sliding rail is installed on a bottom plate of the lower structure of the underground passage, the supporting main body is erected above the self-propelled sliding rail according to the clearance of the structure of the underground passage, the vertical adjusting mechanism and the horizontal adjusting mechanism are respectively installed at the top end and the side surface of the supporting main body and are pre-pressurized, the upper section of the underground passage is hoisted in a working well and is placed on the supporting main body, and the vertical adjusting mechanism and the horizontal adjusting mechanism are abutted against the inner wall of the upper section of the underground passage; one end of the horizontal adjusting mechanism, which is close to the upper section of the underground passage, is provided with a first reinforcing batten plate, one end of the axial force adjusting device, which is close to the enclosure structure, is provided with a second reinforcing batten plate, and a third reinforcing batten plate is arranged between an adjusting rod and a counter-force base of the oblique adjusting mechanism;
s103: starting the vertical adjusting mechanism to jack the upper section of the underground passage, wherein the jacking distance meets the construction requirements of moving, transporting and assembling, starting a power device of the self-propelled sliding rail, moving and transporting the upper section of the underground passage in place, accurately positioning through the vertical adjusting mechanism and the horizontal adjusting mechanism, placing the upper section of the underground passage on the corresponding lower section of the underground passage, connecting, repeating the steps, and sequentially transporting a plurality of sections of the upper section of the underground passage to a preset position through the moving, transporting and assembling system and assembling in place;
s104: and after the assembly construction of the upper sections of the underground passage is completed, carrying out prestress tensioning on the sections, connecting the upper sections of the underground passage with the lower sections of the underground passage to form an integral underground passage structure, finally removing the reinforced concrete supports far away from the reinforced concrete cushion layer, backfilling the upper soil of the underground passage structure and recovering the original ground road sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108118565A (en) * | 2017-12-12 | 2018-06-05 | 中铁二院工程集团有限责任公司 | Railway bed karez location pin-connected panel foundation stabilization construction and construction method |
| CN109296214B (en) * | 2018-11-30 | 2021-03-26 | 中国二十冶集团有限公司 | Alignment device for multi-angle steel joint and use method thereof |
| CN112281917B (en) * | 2020-11-04 | 2022-07-22 | 中国二十冶集团有限公司 | Soft soil foundation underground gallery type structure jacking construction method |
| CN112726665B (en) * | 2020-12-29 | 2023-01-20 | 海门市帕源路桥建设有限公司 | Installation and construction method for bottom plate short wall formwork |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0206371B1 (en) * | 1985-06-11 | 1988-07-13 | Weiss Benedikt | Cutter head for advancing prefabricated concrete pipes for the construction of galleries or tunnels |
| CN203961992U (en) * | 2014-06-16 | 2014-11-26 | 中建七局安装工程有限公司 | Portable full framing chassis |
| CN105926473A (en) * | 2016-04-27 | 2016-09-07 | 苏交科集团股份有限公司 | Self-adjusting construction method of prefabricated culvert |
| CN106088149A (en) * | 2016-08-05 | 2016-11-09 | 中交第二航务工程局有限公司 | A kind of mechanization rapid constructing method of precast splice type underground gallery |
| CN106436759A (en) * | 2016-10-18 | 2017-02-22 | 郑州新大方重工科技有限公司 | Assembly trolley for open-cut subway station formed by assembling prefabricated parts |
-
2017
- 2017-06-30 CN CN201710518851.9A patent/CN107268676B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0206371B1 (en) * | 1985-06-11 | 1988-07-13 | Weiss Benedikt | Cutter head for advancing prefabricated concrete pipes for the construction of galleries or tunnels |
| CN203961992U (en) * | 2014-06-16 | 2014-11-26 | 中建七局安装工程有限公司 | Portable full framing chassis |
| CN105926473A (en) * | 2016-04-27 | 2016-09-07 | 苏交科集团股份有限公司 | Self-adjusting construction method of prefabricated culvert |
| CN106088149A (en) * | 2016-08-05 | 2016-11-09 | 中交第二航务工程局有限公司 | A kind of mechanization rapid constructing method of precast splice type underground gallery |
| CN106436759A (en) * | 2016-10-18 | 2017-02-22 | 郑州新大方重工科技有限公司 | Assembly trolley for open-cut subway station formed by assembling prefabricated parts |
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