CN102913259A - Steel arch assembling machine of tunnel vault for repairing damages of existing railway tunnel - Google Patents
Steel arch assembling machine of tunnel vault for repairing damages of existing railway tunnel Download PDFInfo
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- CN102913259A CN102913259A CN2012104438904A CN201210443890A CN102913259A CN 102913259 A CN102913259 A CN 102913259A CN 2012104438904 A CN2012104438904 A CN 2012104438904A CN 201210443890 A CN201210443890 A CN 201210443890A CN 102913259 A CN102913259 A CN 102913259A
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Abstract
The invention discloses a steel arch assembling machine of a tunnel vault for repairing damages of an existing railway tunnel. The steel arch assembling machine comprises an assembling rack, a steel arch operating mechanism which is arranged on the assembling rack, an electrical control part and a hydraulic control part, wherein the steel arch operating mechanism comprises a steel arch position correcting device and a steel arch lifting and turning device which is arranged on the side of the steel arch position correcting device; the steel arch lifting and turning device comprises a lifting mechanism, a swing mechanism, a turning mechanism and a fixing mechanism; and the steel arch position correcting device comprises a longitudinal moving mechanism, a transverse moving mechanism which is arranged above the longitudinal moving mechanism, an up and down moving mechanism which is fixed on the transverse moving mechanism, a locking mechanism and an up and down moving guide mechanism. According to the invention, the steel arch exceeds the mechanical assembling for a carrier cable, so that the labour intensity is greatly reduced, and the working efficiency and safety are improved.
Description
Technical field
The present invention relates to a kind of Curing of Tunnel Diseases construction equipment, relate in particular to a kind of existing railway Curing of Tunnel Diseases tunnel vault steel arch frame fitting machine.
Background technology
When domestic existing railway tunnel defect is renovated, when lining cracking is serious, usually adopt installation steel arch frame to carry out lining reinforcement.Generally first to behind the tunnel lining fluting steel arch frame being installed, then the filling slot body is finished lining reinforcement at steel arch frame behind mud jacking at last.
Existing a kind of steel arch frame fitting machine, " a kind of novel tunnel construction bow member fitting machine " referring to the disclosure of " tunnel construction " the 5th phase of the 31st volume, utilize excavator to do the chassis, transform its forearm as Special arm, can realize the clamping device of six degree of freedom at its tip designs one cover, realize and to arrive the function of optional position after the bow member gripping.Chief component comprises: a cover four-bar linkage structure, slew gear, clamping device, less important work platform, hydraulic control system and electrical control system.This bow member fitting machine is during for Weak Surrounding Rock Construction, use when setting up the steel arch frame as preliminary bracing and design, do not consider this factor of carrier cable of existing railway tunnel overhead contact, design feature and the function of the steel arch frame traveling mechanism that its slew gear, clamping device consist of all can't make the steel arch frame walk around the carrier cable of existing railway tunnel overhead contact, the installation of tunnel vault steel arch frame in the time of namely can't being used for the existing railway Curing of Tunnel Diseases.When the existing railway tunnel reinforces by the steel arch frame is installed at present, generally all adopt the artificial steel arch frame of installing.Because steel arch frame own wt is large, when being installed, tunnel vault steel arch frame must walk around the carrier cable of railway tunnel contact net, and do not allow to bump with tunnel arch wall and carrier cable, so the steel arch frame manually is installed, and not only difficulty is large, labour intensity is high, operating efficiency is low, and construction safety hidden danger is large.Have not yet to see the report of the mechanization erection equipment of steel arch frame when the existing railway Curing of Tunnel Diseases.
Summary of the invention
The objective of the invention is to design the tunnel vault steel arch frame fitting machine that a kind of existing railway Curing of Tunnel Diseases is used, the mechanization of Vault Steel bow member is installed during with the realization Curing of Tunnel Diseases, improves the safety of operating efficiency and operation when reducing labor intensity.
The formation of the tunnel vault steel arch frame fitting machine that the existing railway Curing of Tunnel Diseases of realization the object of the invention is used comprises the installation stand, be installed in steel arch frame traveling mechanism and electrical control part and the hydraulic control part of installing on the stand, it is characterized in that described steel arch frame traveling mechanism is put means for correcting and is installed in the steel arch chord position by the steel arch chord position puts the lifting of steel arch frame and the turning device of means for correcting side and forms, the lifting of steel arch frame and turning device are by elevating mechanism, slew gear, switching mechanism and fixed mechanism form, wherein, described elevating mechanism is by be fixed to the inner column of installing on the stand with bearing spider, be sleeved on the outer sleeve on the inner column and be connected to inner column and outer sleeve between hydraulic cylinder consist of, described slew gear is by the driving mechanism that is arranged on the inner column lower end, the feather key and the corresponding gathering sill that is opened on the outer sleeve that are welded on the inner column consist of, described switching mechanism is made of the steel arch frame turning support of the outer sleeve upper end that is articulated in elevating mechanism and the upset hydraulic cylinder that is articulated between steel arch frame turning support and outer sleeve, and described fixed mechanism is made of with the hook-shaped fixed arm that is fixed in the piston rod end of fixer cylinder pressure two fixer cylinder pressures that are installed on the steel arch frame turning support sidewall; Described steel arch chord position is put means for correcting by vertical shift mechanism, be positioned at the transverse-moving mechanism of vertical shift mechanism top, be fixed in the reciprocating mechanism on the transverse-moving mechanism, retaining mechanism and move up and down guiding mechanism and form, wherein, described vertical shift mechanism is by being installed in two parallel vertical shift shaped steel tracks installing on the stand, be installed on the vertical shift traveling roller set in the vertical shift shaped steel track, the vertical shift support that is installed on the vertical shift traveling roller set consists of, described transverse-moving mechanism is by being installed on the vertical shift support and perpendicular to two of vertical shift shaped steel track parallel traversing shaped steel tracks, be installed on the traversing traveling roller set in the traversing shaped steel track, the traversing support that is installed on the traversing traveling roller set consists of, described reciprocating mechanism is by four root posts that are welded on four jiaos on the traversing support, the upright post connecting plate that is connected on two vertical column tops consists of with the steel arch frame bracket that is installed in the multistage hydraulic cylinder at place, upright post connecting plate centre position respectively and is connected with the piston rod end of multistage hydraulic cylinder, the described guiding mechanism that moves up and down is made of multi-stage sleeve, the outer sleeve of multi-stage sleeve is fixed on the traversing support, the innermost layer sleeve is connected on the steel arch frame bracket sidewall, and the retaining mechanism of described fixedly steel arch frame is made of the hydraulic caliper that is installed on the steel arch frame bracket sidewall.
During use, the installation stand by the machine is installed in the machine on the chassis, also the height that stand is installed can be done to such an extent that satisfy the station requirement for height of its upper-part.In the situation that there is not chassis to use, also can build a highly suitable truss platform, the machine is installed on the truss platform uses.At first partly make the action of upset hydraulic cylinder by electrical control part and hydraulic control, promote the upwards upset of steel arch frame turning support, steel arch frame turning support is placed vertical configuration, then the steel arch frame is installed on the steel arch frame turning support, handle subsequently two fixer cylinder pressures that are installed on the steel arch frame turning support side and regain hook-shaped fixed arm with steel arch frame lock calmly, when each hydraulic cylinder makes outer sleeve up with respect to inner column with steel arch frame turning support and the steel arch frame on it turning support is overturn by handling downwards together with the steel arch frame again, until steel arch frame lift height surpasses OCS Messenger Wire and sets level.After the steel arch frame is set level, be arranged on the driving mechanism action of inner column lower end, the rotation of drive inner column, by being welded on the effect of the gathering sill of offering on feather key on the inner column and the outer sleeve, and then drive outer sleeve with steel arch frame turning support and the past OCS Messenger Wire direction rotation of the steel arch frame on it, thereby realize an end span of steel arch frame is crossed the carrier cable of contact net.In this process, elevating mechanism and switching mechanism move simultaneously the end span that makes the steel arch frame and cross the backward lower upset of carrier cable and move downward, until the web of steel arch frame stops when vertical with tunnel axis.After above-mentioned action is finished, the steel arch chord position is put means for correcting move to steel arch frame below along vertical shift shaped steel track, drive steel arch frame bracket by multistage hydraulic cylinder again and move up, the holder of steel arch frame is connected in the steel arch frame bracket.Move up and down guiding mechanism and guaranteed that steel arch frame bracket does not twist when multistage hydraulic cylinder rises, thereby guaranteed that steel arch frame bracket accurately puts to accept the steel arch frame in place.The steel arch frame was transferred to the steel arch chord position and was put on the means for correcting from the lifting of steel arch frame and turning device this moment.After this action of the fixer cylinder pressure on the steel arch frame turning support makes hook-shaped fixed arm discharge the steel arch frame.The lifting of steel arch frame and turning device are reset to original state.Make again the hydraulic caliper action that is positioned on the steel arch frame bracket sidewall, with steel arch frame lock tightly in steel arch frame bracket.Finished subsequently laterally, the vertically and up and down position correction of three directions of steel arch frame by transverse-moving mechanism, vertical shift mechanism and reciprocating mechanism, make the steel arch frame exactly jacking be installed in the steel arch frame mounting groove of tunnel lining of appointment.After manually the steel arch frame being fixed, discharge hydraulic caliper, the steel arch chord position is put means for correcting be reset to original state, thereby the mechanization of finishing existing railway tunnel vault steel arch frame is installed.
The steel arch chord position is put the vertical shift support of means for correcting and the movement of traversing support can be finished by artificial promotion.Also can by the driving mechanism that drives the vertical shift support-moving is set between vertical shift support and vertical shift shaped steel track, the driving mechanism that the traversing support-moving of driving is set between traversing support and vertical shift support is finished.
This steel arch frame fitting machine can also be controlled by mcu programming the action of each driving mechanism, finishes the automated machine of vault steel arch frame in the existing railway tunnel with the running orbit of control steel arch frame and installs.
The present invention is by the design to steel arch frame traveling mechanism, make the running orbit of steel arch frame realize crossing over the carrier cable of contact net and not bumping with tunnel arch wall lining cutting, the steel arch frame is installed registration, the mechanization that the tunnel vault steel arch frame of difficulty maximum is installed when having realized the existing railway Curing of Tunnel Diseases, greatly reduce the labour intensity that the steel arch frame is installed, improved operating efficiency, shortened the duration that tunnel lining is reinforced, secure context is also more secure.
Below in conjunction with embodiment content of the present invention is described further.But content of the present invention is not limited in the present embodiment.
Description of drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is the left view of Fig. 1
Fig. 3 is the right view of Fig. 1
Fig. 4 is the station figure before the jacking of steel arch frame
Fig. 5 is the top view of steel arch frame among Fig. 4
Fig. 6 is the station schematic diagram that the lifting of steel arch frame and turning device put the jacking of steel arch frame in place
Fig. 7 is the top view of steel arch frame among Fig. 6
Fig. 8 is that the steel arch frame is transferred to the station schematic diagram on the steel arch frame installation bracket
Fig. 9 is the top view of steel arch frame among Fig. 8
Figure 10 is that the jacking of steel arch frame is to the interior station schematic diagram of the steel arch frame mounting groove of tunnel lining
The specific embodiment
Referring to Fig. 1～10, the formation of the tunnel vault steel arch frame fitting machine that this existing railway Curing of Tunnel Diseases is used comprises installation stand 16, is installed in steel arch frame traveling mechanism and electrical control part and the hydraulic control part of installing on the stand 16, electrical control part and hydraulic control partly belong to the known technology part, therefore do not illustrate at figure.Described steel arch frame traveling mechanism is put means for correcting and is installed in the steel arch chord position by the steel arch chord position and puts the lifting of steel arch frame and the turning device of means for correcting side and form, the lifting of steel arch frame and turning device are by elevating mechanism, slew gear, switching mechanism and fixed mechanism form, wherein, described elevating mechanism is by be fixed to the inner column 9 of installing on the stand 16 with bearing spider 10, be sleeved on the outer sleeve 8 on the inner column 9 and be connected to inner column 9 and outer sleeve 8 between hydraulic cylinder 31 consist of, described slew gear is by the driving mechanism 11 that is arranged on inner column 9 lower ends, the feather key 5 and the corresponding gathering sill 4 that is opened on the outer sleeve 8 that are welded on the inner column 9 consist of.Driving mechanism 11 can adopt the form of structure of drive motors being installed, gear pair is set the stand bottom surface is installed between drive motors and inner column 9 lower ends.That can certainly adopt other form of structure makes inner column 9 driving mechanism around the rotation of self axis in bearing spider 10.Switching mechanism is by the steel arch frame turning support 3 that is articulated in outer sleeve 8 upper ends and be articulated in steel arch frame turning support 3 and the upset hydraulic cylinder 6 of 8 of outer sleeves consists of.7 is to be welded on the installing plate that being used on the outer sleeve 8 installed upset hydraulic cylinder 6 among the figure.Fixed mechanism is made of with the hook-shaped fixed arm 2 that is fixed in the piston rod end of fixer cylinder pressure 32 two the fixer cylinder pressures 32 that are installed on steel arch frame turning support 3 sidewalls.
Described steel arch chord position put means for correcting by vertical shift mechanism, be positioned at vertical shift mechanism top transverse-moving mechanism, be fixed in reciprocating mechanism, the retaining mechanism on the transverse-moving mechanism and move up and down guiding mechanism and form, wherein, described vertical shift mechanism by be installed in two parallel vertical shift shaped steel tracks 17 installing on the stand 16, be installed on the vertical shift traveling roller set 15 in the vertical shift shaped steel track 17, the vertical shift support 14 that is installed on the vertical shift traveling roller set 15 is consisted of.Described transverse-moving mechanism by be installed on the vertical shift support 14 and perpendicular to two of vertical shift shaped steel track 17 parallel traversing shaped steel tracks 19, be installed on the traversing traveling roller set 12 in the traversing shaped steel track 19, the traversing support 13 that is installed on the traversing traveling roller set 12 is consisted of.
The movement on traversing shaped steel track 19 can be by manually finishing in the movement on the vertical shift shaped steel track 17 and traversing support 13 for vertical shift support 14, also can be as the present embodiment illustrates by the driving vertical shift support-moving that between vertical shift support 14 and vertical shift shaped steel track 17, arranges motor-driven mechanism 18 and be articulated in traversing support 13 and finish with the driving mechanism of the traversing support-moving of driving of the hydraulic cylinder of 14 on vertical shift support 34 formations.Motor-driven mechanism 18 can adopt at vertical shift support 14 and drive motors is installed, friction pulley is being set between machine shaft and the vertical shift shaped steel track 17 or the form of structure of rack-and-pinion is set between machine shaft and vertical shift shaped steel track 17.Can certainly adopt the driving mechanism of other form of structure.As a same reason, drive the driving mechanism that driving mechanism that traversing support 13 moves also can adopt other form of structure.
Described reciprocating mechanism is made of with the multistage hydraulic cylinder 23 at the place, centre position that is installed in respectively upright post connecting plate 22 and the steel arch frame bracket 25 that is connected with the piston rod end of multistage hydraulic cylinder 23 upright post connecting plate 22 that is welded on four root posts 20 on 13 4 jiaos on the traversing support, be connected on two vertical column tops.The described guiding mechanism that moves up and down is comprised of multi-stage sleeve, and the outer sleeve 21 of multi-stage sleeve is fixed on the traversing support 13, and innermost layer sleeve 24 is connected on the sidewall of steel arch frame bracket 25 by a plate 36.The retaining mechanism of described fixedly steel arch frame is made of the hydraulic caliper 35 on the sidewall that is installed in steel arch frame bracket 25.
During use, the installation stand 16 by the machine is installed in the machine on the chassis 33 (among the figure shown in the double dot dash line).Certainly, also the height that stand 16 is installed can be done to such an extent that satisfy the station requirement for height of its upper-part.In the situation that there is not chassis to use, also can build a highly suitable truss platform, the machine is installed on the truss platform uses.1 is tunnel arch wall lining cutting among the figure, and 26 is contact wire, and 27 is the carrier cable of contact wire 26, and 30 for connecting the dropper of contact wire 26 and carrier cable 27.At first partly make 6 actions of upset hydraulic cylinder by electrical control part and hydraulic control, promotion steel arch frame turning support 3 upwards upset is vertical configuration, then steel arch frame 29 is installed on the steel arch frame turning support 3 and by hook-shaped fixed arm 2 and is locked, shown in Fig. 4,5.The upset hydraulic cylinder 6 of the hydraulic cylinder 31 of operate lifting mechanism and switching mechanism subsequently, it is up with respect to inner column 9 with steel arch frame turning support 3 and the steel arch frame 29 on it that hydraulic cylinder 31 drives outer sleeve 8, the hydraulic cylinder 6 that meanwhile overturns makes turning support 3 and steel arch frame 29 downward (i.e. clockwise direction among the figure) upset, until steel arch frame 29 lift heights on the steel arch frame turning support surpass carrier cable 27 and set level, shown in Fig. 6,7.After steel arch frame 29 is set level, start the driving mechanism 11 that is arranged on inner column 9 lower ends of slew gear, driving inner column 9 is rotated counterclockwise, under the effect of the gathering sill 4 that the feather key 5 on the inner column 9 and outer sleeve 8 are offered, and then drive outer sleeve 8 and be rotated counterclockwise, thereby realize an end span of steel arch frame 29 is crossed the carrier cable 27 of contact net.In this process, the upset hydraulic cylinder 6 of switching mechanism and the hydraulic cylinder 31 of elevating mechanism move simultaneously, make an end span of steel arch frame 29 cross carrier cable 27 backward lower upsets and move downward, until the web of steel arch frame 29 stops when vertical with tunnel axis.After above-mentioned action is finished, by motor-driven mechanism 18 the steel arch chord position is put means for correcting and move to steel arch frame 29 belows along vertical shift shaped steel track 17, drive steel arch frame bracket 25 by multistage hydraulic cylinder 23 again and move up, 29 holders of steel arch frame are connected in the steel arch frame bracket 25.Guaranteed that with the guiding mechanism that moves up and down that the innermost layer sleeve 24 that is fixed on steel arch frame bracket 25 sidewalls consists of steel arch frame bracket 25 does not twist by the outer sleeve 21 that is fixed on the traversing support 13 when multistage hydraulic cylinder 23 rises, thereby guaranteed that steel arch frame bracket 25 accurately puts in place in order to accept steel arch frame 29.At this moment, steel arch frame 29 has been transferred to the steel arch chord position and has been put on the means for correcting from the lifting of steel arch frame and turning device, and after this 32 actions of the fixer cylinder pressure on the steel arch frame turning support 3 make hook-shaped fixed arm 2 discharge steel arch frame 29.The lifting of steel arch frame and turning device then are reset to original state, shown in Fig. 8,9.Starting hydraulic caliper 35 is locked at steel arch frame 29 in the steel arch frame bracket 25.Drive the below that vertical shift support 14 longitudinally moves to the tunnel lining mounting groove 28 of steel arch frame 29 by motor-driven mechanism 18 subsequently, hydraulic cylinder 34 actions of transverse-moving mechanism, so that traversing support 13 relative vertical shift support 14 transverse shiftings, multistage hydraulic cylinder 23 actions of reciprocating mechanism, thereby finish vertically, the laterally and up and down position correction of three directions to steel arch frame 29, make steel arch frame 29 exactly jacking be installed in the tunnel lining mounting groove 28 of appointment, as shown in figure 10.After manually fixing steel arch frame 29, discharge hydraulic caliper 35, the steel arch chord position is put means for correcting and is reset to original state, thus the mechanization of finishing existing railway tunnel vault steel arch frame is installed.
Claims (1)
1. an existing railway Curing of Tunnel Diseases is with tunnel vault steel arch frame fitting machine, comprise the installation stand, be installed in steel arch frame traveling mechanism and electrical control part and the hydraulic control part of installing on the stand, it is characterized in that described steel arch frame traveling mechanism is put means for correcting and is installed in the steel arch chord position by the steel arch chord position puts the lifting of steel arch frame and the turning device of means for correcting side and forms
The lifting of described steel arch frame and turning device are comprised of elevating mechanism, slew gear, switching mechanism and fixed mechanism, wherein,
Described elevating mechanism by be fixed to the inner column installed on the stand with bearing spider, be sleeved on the outer sleeve on the inner column and be connected to inner column and outer sleeve between hydraulic cylinder consist of,
Described slew gear is made of the driving mechanism that is arranged on the inner column lower end, the feather key and the corresponding gathering sill that is opened on the outer sleeve that are welded on the inner column,
Described switching mechanism is made of the steel arch frame turning support of the outer sleeve upper end that is articulated in elevating mechanism and the upset hydraulic cylinder that is articulated between steel arch frame turning support and outer sleeve,
Described fixed mechanism is made of with the hook-shaped fixed arm that is fixed in the piston rod end of fixer cylinder pressure two fixer cylinder pressures that are installed on the steel arch frame turning support sidewall;
Described steel arch chord position put means for correcting by vertical shift mechanism, be positioned at vertical shift mechanism top transverse-moving mechanism, be fixed in reciprocating mechanism, the retaining mechanism on the transverse-moving mechanism and move up and down guiding mechanism and form, wherein,
Described vertical shift mechanism by be installed in two parallel vertical shift shaped steel tracks installing on the stand, be installed on the vertical shift traveling roller set on the vertical shift shaped steel track, the vertical shift support that is installed on the vertical shift traveling roller set is consisted of,
Described transverse-moving mechanism by be installed on the vertical shift support and perpendicular to two of vertical shift shaped steel track parallel traversing shaped steel tracks, be installed on the traversing traveling roller set in the traversing shaped steel track, the traversing support that is installed on the traversing traveling roller set is consisted of,
Described reciprocating mechanism by be welded on four root posts on four jiaos on the traversing support, be connected on two vertical column tops upright post connecting plate with respectively be installed in the multistage hydraulic cylinder at place, upright post connecting plate centre position and the steel arch frame bracket that is connected with the piston rod end of multistage hydraulic cylinder consists of
The described guiding mechanism that moves up and down is comprised of multi-stage sleeve, and the outer sleeve of multi-stage sleeve is fixed on the traversing support, and the innermost layer sleeve is connected on the steel arch frame bracket sidewall,
The retaining mechanism of described fixedly steel arch frame is made of the hydraulic caliper that is installed on the steel arch frame bracket sidewall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210443890.4A CN102913259B (en) | 2012-11-08 | 2012-11-08 | Steel arch assembling machine of tunnel vault for repairing damages of existing railway tunnel |
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| CN201210443890.4A CN102913259B (en) | 2012-11-08 | 2012-11-08 | Steel arch assembling machine of tunnel vault for repairing damages of existing railway tunnel |
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| CN102913259B CN102913259B (en) | 2014-07-09 |
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| CN103806927A (en) * | 2014-02-21 | 2014-05-21 | 中铁工程装备集团有限公司 | Steel arch assembling machine |
| CN103924989A (en) * | 2014-04-30 | 2014-07-16 | 重庆工商职业学院 | Tunnel primary support steel arch installing rack and method |
| CN104500107A (en) * | 2014-12-11 | 2015-04-08 | 中铁西南科学研究院有限公司 | Lining steel arch frame installing groove grooving machine for treating existing railway tunnel defects |
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| CN104500107A (en) * | 2014-12-11 | 2015-04-08 | 中铁西南科学研究院有限公司 | Lining steel arch frame installing groove grooving machine for treating existing railway tunnel defects |
| CN104500107B (en) * | 2014-12-11 | 2016-07-20 | 中铁西南科学研究院有限公司 | A kind of existing railway Curing of Tunnel Diseases lining cutting steel arch-shelf mounting groove groover |
| CN111663943A (en) * | 2015-05-28 | 2020-09-15 | 联邦科学和工业研究组织 | System and method for controlling mining machine, mining apparatus, storage medium |
| CN107060844A (en) * | 2017-06-06 | 2017-08-18 | 中铁工程装备集团隧道设备制造有限公司 | Tunnel the basket steel arch-shelf fitting machine of two-arm two and steel arch frame construction method |
| CN107060844B (en) * | 2017-06-06 | 2023-09-26 | 中铁工程装备集团隧道设备制造有限公司 | Two-arm two-basket steel arch installing machine for tunnel and steel arch construction method |
| CN107605515A (en) * | 2017-10-27 | 2018-01-19 | 中铁西南科学研究院有限公司 | A kind of operation tunnel Disease Treatment steel arch-shelf fitting machine |
| CN108468554A (en) * | 2018-06-08 | 2018-08-31 | 涪特智能装备（重庆）有限公司 | The mechanical laying method of tunnel trolley and earth water-proof plate and two lining longitudinal reinforcements |
| CN108468554B (en) * | 2018-06-08 | 2023-11-17 | 涪特智能装备（重庆）有限公司 | Tunnel trolley, geotextile waterproof board and mechanical laying method of two-lining longitudinal steel bars |
| CN108894803A (en) * | 2018-09-14 | 2018-11-27 | 焦卫宁 | A kind of Tunnel steelframe installation ancillary equipment and its construction method |
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| CN111764941A (en) * | 2020-03-27 | 2020-10-13 | 同济大学 | Tunnel prefabricated steel arch frame reinforcing method |
| CN111764941B (en) * | 2020-03-27 | 2021-09-03 | 同济大学 | Tunnel prefabricated steel arch frame reinforcing method |
| CN112593974A (en) * | 2020-12-03 | 2021-04-02 | 重庆文理学院 | Tunnel segment installation device and installation method thereof |
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| CN102913259B (en) | 2014-07-09 |
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