CN115492603A - Construction process of tunnel lining sheet assembling trolley - Google Patents
Construction process of tunnel lining sheet assembling trolley Download PDFInfo
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- CN115492603A CN115492603A CN202210944851.6A CN202210944851A CN115492603A CN 115492603 A CN115492603 A CN 115492603A CN 202210944851 A CN202210944851 A CN 202210944851A CN 115492603 A CN115492603 A CN 115492603A
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- Prior art keywords
- lining
- longitudinal moving
- assembling
- moving
- jacking
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
Abstract
The invention provides a construction process of a tunnel lining sheet assembly trolley, wherein each 1 ring of tunnel lining sheet assembly comprises the assembly of 1 arch lining sheet and 2 side lining sheets, after the assembly trolley is in a tunnel station, 2 side lining sheets are assembled through a circular assembly mechanism of the assembly trolley, then the arch lining sheets are assembled through a longitudinal conveying mechanism, after the assembly is finished, the assembly trolley moves backwards to assemble the next ring of tunnel lining sheets, and the process is circulated in sequence. The construction process is used for assembling the fabricated lining in blocks, and is high in assembling efficiency and high in precision.
Description
Technical Field
The invention relates to the technical field of tunnel lining installation, in particular to a construction process of a tunnel lining piece assembling trolley.
Background
In the last two decades, traffic infrastructure in China has seen unprecedented growth, with mountain tunnels experiencing advances from traditional support structures to modern support structures, from monolithic linings to composite linings. The construction method of mountain tunnels is also developed from the traditional mining method to the new Austrian and TBM construction methods. At present, the new Austrian composite lining is widely applied all over the world. However, the new Austrian method has the advantages of multiple construction procedures, complex construction organization, longer construction period, severe construction environment, and ineffective guarantee of construction quality, but has better geological adaptability and unique advantages of economy and flexibility. The TBM method has simple process, high construction speed and good safety, but is generally only used for a round long tunnel mainly made of hard rock and is not suitable for short tunnels and underground engineering with complex geological conditions. In order to adapt to various geological conditions, accelerate construction speed and improve engineering quality, some improvements on the currently popular construction method or lining structure form are necessary to obtain good economic and technical benefits.
In view of the excavation mode, the drilling and blasting excavation method applied by the new Austrian method has strong adaptability, can be applied to various geological conditions, can excavate sections with various shapes on the basis of meeting the tunnel building clearance and has strong adaptability; the TBM tunneling method has strict requirements on geological conditions, section shapes and tunnel lengths, reduces the application range of the TBM tunneling method, has low adaptability and is lack of advantages compared with the new Austrian method. In addition, considering from the form of a lining structure, a composite lining structure adopted by the new Austrian's method fully embodies the design construction concept, namely the self-bearing capacity of the surrounding rock is fully exerted, but the construction speed is slow, the construction procedures are multiple, the requirements of modern tunnel construction on the mechanization degree, the construction efficiency, the safety and the environmental protection cannot be met, and the secondary lining cannot be immediately loaded after being poured; the fabricated lining adopted by the TBM method has the advantages of high lining construction speed, reliable quality, immediate bearing of the lining and great improvement of tunnel construction environment, and the fabricated lining has various joints, so that the flexibility of the lining is increased, and the concept of the new Austrian method is reflected to a certain extent. Meanwhile, with the development of tunnel construction mechanization and construction factory technology, the fabricated lining is more and more widely applied to various tunnels and underground engineering. Fabricated tunnel linings have many advantages: (1) Once assembled, the pressure of the surrounding rock can be borne without the need of curing time; (2) A large number of components can be produced in batches in a factory and assembled mechanically, so that the labor condition is improved, and the labor force is saved; (3) During assembly, temporary supports such as an arch frame, a template and the like are not needed, so that a large amount of supporting materials and labor force are saved; (4) The assembly speed is improved due to the adoption of mechanization, the construction period is shortened, and the manufacturing cost is possibly reduced; (5) The fabricated lining has strong adaptability and can be adopted in some special environments such as severe cold and the like.
In order to facilitate the installation of the assembled tunnel lining, at present, one ring of tunnel lining sheets can be divided into a plurality of blocks to be respectively assembled, and the assembly of 1 ring of tunnel lining sheets often comprises the assembly of 1 arch lining sheet and 2 side lining sheets, so that the trolley capable of installing the arch lining sheets and the side lining sheets is very necessary to provide, and the problems of speed, quality and benefit in the current engineering construction are solved.
Disclosure of Invention
The invention provides a construction process of a tunnel lining sheet assembling trolley, which is used for assembling prefabricated linings in blocks, and has the advantages of higher assembling efficiency and high precision.
The technical scheme adopted for realizing the above purpose of the invention is as follows:
the utility model provides a construction process of platform truck is assembled to tunnel lining piece, every 1 tunnel lining piece of ring is assembled and is included assembling of 1 arch lining piece and 2 side edge lining pieces, assembles the platform truck and assembles 2 side edge lining pieces earlier behind the tunnel station, assembles arch lining piece again, and concrete step is:
s1, carrying and hoisting 1 side lining sheet to a jacking mechanism of an assembly trolley;
s2, jacking side lining sheets of the jacking mechanism, and moving a bearing slide block of the longitudinal movement conveying mechanism of the assembly trolley to a position right below the jacking mechanism;
s3, descending the jacking mechanism to place the side lining pieces on the bearing sliding blocks;
s4, synchronously moving and jacking the side lining pieces along with the bearing sliding blocks to enable the side lining pieces to be positioned right above the annular assembling mechanism of the assembling trolley;
s5, jacking lining sheet suckers of the annular splicing mechanism to enable the lining sheet suckers to be connected with the side lining sheets;
s6, moving the longitudinal moving conveying mechanism to the position behind the frame, close to the jacking mechanism, and descending, and simultaneously driving the side lining sheets to move to the side splicing position by the circumferential splicing mechanism;
s7, jacking, longitudinally moving and adjusting the lining piece suckers to enable the side lining pieces to be accurately positioned, assembling 1 side lining piece, and returning the annular assembling mechanism to the top position;
s8, completing the assembly of the other side lining sheet according to the steps S1-S7;
s9, according to the steps S1-S3, the arch lining sheets are placed on the longitudinal movement conveying mechanism and synchronously move and lift up along with the bearing sliding blocks, so that the arch lining sheets are moved to the arch assembling position to be in place, and the assembling of the 1-ring tunnel lining sheets is completed;
and S10, the longitudinal moving conveying mechanism descends and moves to the position, close to the jacking mechanism, behind the frame, the assembling trolley moves backwards to assemble the next annular tunnel lining sheet, and the steps are circulated in sequence.
And S7, after the side lining pieces are accurately in place, jacking and pressing the side lining pieces by a pressing mechanism of the assembly trolley from the rear side.
And after the 6-ring tunnel lining sheets are assembled, grouting and backfilling are performed for one time.
The side lining pieces and the arch lining pieces are carried into the tunnel by the transport vehicle and are hoisted to the assembling trolley by the hoisting gantry crane.
The concrete steps of moving the bearing slide block of the longitudinal movement conveying mechanism to a position right below the jacking mechanism in the step S2 are as follows:
s21, moving a longitudinal moving underframe of the longitudinal moving conveying mechanism to the rear part of the frame, close to the jacking mechanism, and enabling a second longitudinal moving track of the longitudinal moving conveying mechanism to be located above a supporting oil cylinder at the rear end of the frame;
s22, jacking the supporting oil cylinder to be in contact with the second longitudinal moving track, and supporting the second longitudinal moving track;
and S23, moving the bearing slide block to be right below the jacking mechanism.
The specific steps in the step S4 are as follows:
s41, moving the side lining sheet to the upper part of the longitudinal moving base frame along with the bearing sliding block, and descending the supporting oil cylinder;
s42, the longitudinal moving chassis drives the bearing sliding blocks and the side lining plates to move to the position, close to the annular assembling mechanism, in front of the frame, a second longitudinal moving track of the longitudinal moving conveying mechanism is located above a supporting oil cylinder at the front end of the frame, the supporting oil cylinder and the longitudinal moving conveying mechanism lift the second longitudinal moving track, the second longitudinal moving track is supported, and the second longitudinal moving track is located above the annular assembling mechanism;
and S43, the side lining pieces move on the second longitudinal movement track along with the bearing sliding blocks to be right above the lining piece suckers of the annular assembling mechanism.
The specific steps in the step S9 are:
s91, moving the arch lining sheets to the upper part of the longitudinal moving underframe along with the bearing slide block, and descending the supporting oil cylinder;
s92, driving the bearing sliding block and the arch lining piece to move to the position, close to the annular assembling mechanism, in front of the frame by the longitudinal moving underframe, enabling a second longitudinal moving rail of the longitudinal moving conveying mechanism to be located above a supporting oil cylinder at the front end of the frame, and jacking the second longitudinal moving rail by the supporting oil cylinder and the longitudinal moving conveying mechanism to support the second longitudinal moving rail;
and S93, moving the arch lining sheets to an arch assembling position on a second longitudinal moving track along with the bearing sliding blocks, and longitudinally moving the conveying mechanism to longitudinally and jacking and adjusting the arch lining sheets to enable the arch lining sheets to be accurately in place so as to complete assembling of the arch lining sheets.
And a transverse moving frame and a third transverse moving oil cylinder which are used for transverse adjustment are further arranged on the longitudinal moving conveying mechanism, and when the side lining sheets or the arch lining sheets are placed on the longitudinal moving conveying mechanism from the jacking mechanism, placed on the arch jacking mechanism from the longitudinal moving conveying mechanism and directly installed on the arch lining sheets by the longitudinal moving conveying mechanism, the longitudinal moving conveying mechanism is used for carrying out adjustment in the transverse, longitudinal and vertical directions.
When the assembling steps S4 to S6 of 1 lining sheet are carried out, the steps S1 to S3 of another 1 lining sheet are carried out at the same time.
The transport vehicle carries 2 side lining pieces or/and 1 arch lining piece at a time.
Compared with the prior art, the construction process of the assembly trolley provided by the invention has the following advantages: 1. according to the construction method provided by the invention, the lining sheets are transported through the jacking mechanism and the longitudinal transportation mechanism of the assembly trolley, meanwhile, the longitudinal transportation mechanism also assembles the arch lining sheets, and the side lining sheets on two sides are assembled through the annular assembly mechanism and the pressing mechanism, so that the block assembly of the tunnel lining is realized.
2. According to the construction process, the tunnel lining sheets of each ring are divided into 2 side lining sheets and 1 arch lining sheet for assembly, the next lining sheet can be transported while the previous lining sheet is assembled, the installation time is saved, and the installation efficiency is high.
Drawings
Fig. 1 is a first structural schematic diagram of a tunnel lining sheet assembly trolley provided by the invention;
fig. 2 is a structural schematic view of a tunnel lining sheet assembling trolley provided by the invention;
FIG. 3 is a schematic view of the frame structure of the present invention;
FIG. 4 is a schematic structural view of the circumferential splicing mechanism of the present invention;
FIG. 5 is a partial schematic view of the circumferential assembling mechanism of the present invention mounted on a frame;
FIG. 6 is a schematic structural view of a hoop trolley of the hoop assembling mechanism according to the present invention;
FIG. 7 is a schematic view of the connection between the circular trolleys and the circular tracks of the circular splicing mechanism of the invention;
FIG. 8 is a schematic structural view of a longitudinal moving frame of the circumferential splicing mechanism of the present invention;
FIG. 9 is a schematic view of the connection between the mounting base and the longitudinal frame of the circumferential splicing mechanism of the present invention;
FIG. 10 is a schematic view of the connection between the mounting base of the circumferential splicing mechanism and the lining suction cup in the present invention;
FIG. 11 is a schematic view of the mounting of the jacking mechanism on the frame of the present invention;
FIG. 12 is a schematic view of the longitudinal transport mechanism of the present invention;
FIG. 13 is a schematic view of the construction of the vertical-movement chassis of the vertical-movement transporting mechanism according to the present invention;
FIG. 14 is a schematic structural view of a cross frame of the longitudinal transport mechanism of the present invention;
FIG. 15 is a view showing a construction of a connection between a rail connection beam and a second longitudinal movement rail of the longitudinal movement transporting mechanism according to the present invention;
FIG. 16 is a schematic view of the installation of the hold-down mechanism of the present invention;
FIG. 17 is a first schematic construction view of the assembly trolley provided by the present invention;
FIG. 18 is a second schematic construction view of the assembly trolley provided by the present invention;
FIG. 19 is a third schematic construction view of the assembly trolley provided by the present invention;
fig. 20 is a fourth construction schematic view of the assembly trolley provided by the present invention;
fig. 21 is a fifth construction schematic view of the assembly trolley provided by the invention;
fig. 22 is a sixth construction schematic view of the assembly trolley provided by the present invention;
fig. 23 is a seventh construction schematic view of the assembly trolley provided by the invention;
fig. 24 is a construction schematic view eight of the assembly trolley provided by the present invention;
fig. 25 is a ninth construction schematic view of the assembly trolley provided by the invention;
fig. 26 is a schematic construction view ten of the assembly trolley provided by the present invention;
fig. 27 is an eleventh construction schematic view of the assembly trolley provided by the present invention;
fig. 28 is a construction schematic view twelve of the assembly trolley provided by the invention;
fig. 29 is a thirteenth schematic construction view of the assembly trolley provided by the present invention;
fig. 30 is a fourteenth construction schematic diagram of the assembly trolley provided by the invention;
in the figure: 100-arch lining piece, 200-side lining piece;
1-a frame, 2-a walking mechanism and 21-a walking track;
3-a circumferential splicing mechanism, 31-a circumferential track, 311-an arc rail, 312-an arc groove, 32-a circumferential trolley, 321-a running wheel set, 322-a counter pressure wheel set, 323-a guide wheel set, 324-a first guide hole, 325-a first cylinder body mounting hole, 33-a longitudinal moving frame, 331-a first guide upright post, 332-a guide rail, 34-a mounting base, 341-a guide rail mounting hole, 35-a lining piece sucker, 36-a first jacking oil cylinder, 37-a first longitudinal moving oil cylinder, 38-a multi-degree-of-freedom adjusting unit, 381-a first jacking adjusting oil cylinder, 382-a second jacking adjusting oil cylinder and 383-a first longitudinal adjusting oil cylinder;
4-a jacking mechanism, 41-a second jacking oil cylinder, 42-a bearing frame, 421-a second guide upright post, 43-a connecting beam, 431-a second guide hole and 44-a bearing beam;
5-a longitudinal movement transportation mechanism, 51-a first longitudinal movement track, 52-a longitudinal movement underframe, 521-a wheel set, 522-a second cylinder body mounting hole, 53-a transverse movement frame, 531-a third guide hole, 532-a third cylinder body mounting hole, 54-a track connecting beam, 541-a third guide upright post, 55-a second longitudinal movement track, 56-a bearing slide block, 57-a third transverse movement oil cylinder and 58-a third jacking oil cylinder;
6-a pressing mechanism, 61-a pressing frame and 62-a longitudinal pressing oil cylinder;
7-supporting oil cylinder, 8-transport vehicle and 9-lifting gantry crane.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In the assembly trolley in the embodiment, each ring of lining sheets is divided into 2 side lining sheets 200 and 1 vault part lining sheet 100 for assembly.
The overall structural schematic diagram of the construction process of the tunnel lining sheet assembly trolley is shown in fig. 1 and fig. 2, and comprises a frame 1, a travelling mechanism 2 connected to the bottom of the frame, an annular assembly mechanism 3, a longitudinal movement conveying mechanism 5, a jacking mechanism 4, a pressing mechanism 6 and an electric hydraulic unit (not shown in the figure), wherein the annular assembly mechanism 3, the longitudinal movement conveying mechanism 5, the jacking mechanism 4, the pressing mechanism 6 and the electric hydraulic unit are installed on the frame.
The frame is a portal frame structure and comprises upright posts, cross beams and longitudinal beams, the frame is a main stressed part of the whole machine, wherein the annular rail 31 of the annular assembling mechanism, the connecting beam 43 of the jacking mechanism, the first longitudinal moving rail 51 of the longitudinal moving conveying mechanism and the pressing frame 61 of the pressing mechanism are fixed on the frame, as shown in fig. 3.
The running mechanism is a wheel-rail running structure, and comprises 2 sets of driving running wheel sets and 2 sets of driven running wheel sets which are arranged at the bottom of the vehicle frame, and a running rail 21 which is arranged on the ground in the tunnel, and is shown in the figure 1 and the figure 2.
The circumferential assembling mechanism comprises a circumferential track 31, a circumferential trolley 32, a longitudinal moving frame 33, an installation base 34 and a lining suction disc 35, as shown in fig. 4. The circumferential track is fixedly connected to the front end of the frame in the transverse direction, the circumferential trolley is mounted on the circumferential track and moves along the circumferential track, as shown in fig. 2 and 5, the circumferential trolley in this embodiment runs along the circumferential track through sprocket drive (not shown in the figure), the sprocket drive is common and is not repeated here, the circumferential track is composed of two arc-shaped track beams, an arc-shaped rail 311 is arranged at the top of each track beam, an inward-concave arc-shaped groove 312 is formed in the side surface of each track beam, a traveling wheel group 321, a counter-pressure wheel group 322 and a guide wheel group 323 are connected to the bottom of the circumferential trolley, four traveling wheel groups, four counter-pressure wheel groups and four guide wheel groups are arranged, as shown in fig. 6, wherein the traveling wheel groups straddle the arc-shaped rail of the track beams, and the counter-pressure wheel groups are reversely buckled in the arc-shaped grooves of the track beams, so that the guide wheel groups are in contact with the side surfaces of the track beams, as shown in fig. 7.
The longitudinal moving frame is connected above the circumferential trolley through a first jacking oil cylinder 36, specifically, a first guide hole 324 and a first cylinder body mounting hole 325 are formed in the circumferential trolley, see fig. 6, the bottom of the longitudinal moving frame is connected with a first guide upright post 331, as shown in fig. 8, the first guide upright post is mounted in the first guide hole, the cylinder body of the first jacking oil cylinder is fixed on the first cylinder body mounting hole, the piston rod of the first jacking oil cylinder is fixedly connected with the longitudinal moving frame, see fig. 4, the first jacking oil cylinder stretches and retracts to drive the longitudinal moving frame to move in the vertical direction, and meanwhile, the mounting base and the lining piece sucker above the longitudinal moving frame are driven to move in the vertical direction, and the movement is limited by the first guide hole. The installation base is connected above the longitudinal moving frame through a first longitudinal moving oil cylinder 37, specifically, a guide rail 332 is longitudinally connected to the longitudinal moving frame along the longitudinal direction, a guide rail mounting hole 341 is formed in the installation base, the guide rail is connected with the guide rail mounting hole, a cylinder body of the first longitudinal moving oil cylinder is fixed on the longitudinal moving frame, a piston rod of the first longitudinal moving oil cylinder is fixedly connected with the installation base, and as shown in fig. 9, the first longitudinal moving oil cylinder stretches and retracts to drive the installation base to longitudinally move, and meanwhile, a lining piece sucker above the installation base is driven to longitudinally move.
The lining sheet sucker is connected above the mounting base through the multi-degree-of-freedom adjusting unit 38, specifically, the multi-degree-of-freedom adjusting unit comprises a first jacking adjusting oil cylinder 381, a second jacking adjusting oil cylinder 382 and a first longitudinal adjusting oil cylinder 383, the first jacking adjusting oil cylinder, the second jacking adjusting oil cylinder and the first longitudinal adjusting oil cylinder are distributed and connected between the mounting base and the lining sheet sucker, as shown in fig. 10, the multi-degree-of-freedom adjustment of the lining sheet sucker, such as rotation, up and down, left and right, and the like, is controlled through the telescopic adjustment of the first jacking adjusting oil cylinder, the second jacking adjusting oil cylinder and the first longitudinal adjusting oil cylinder, so that the position of the lining sheet placed on the lining sheet sucker is finely adjusted, and the lining sheet is accurately assembled and placed in place. The structure of lining piece sucking disc and the structure phase-match of lining piece, specifically, lining piece sucking disc is vacuum chuck for fixed lining piece.
The jacking mechanism comprises a second jacking oil cylinder 41 and a bearing frame 42, the bearing frame is installed at the rear end of the frame through the second jacking oil cylinder, specifically, the rear end of the frame is fixed with a connecting beam 43, the connecting beam is provided with a second guide hole 431, the bottom of the bearing frame is connected with a second guide upright column 421, the second guide upright column is installed in the second guide hole, the cylinder body of the second jacking oil cylinder is fixedly connected with the connecting beam, the piston rod of the second jacking oil cylinder is fixedly connected with the bearing frame, and as shown in fig. 11, the second jacking oil cylinder drives the bearing frame to move in the vertical direction in a telescopic mode. In this embodiment, two wedge-shaped bearing beams 44 are symmetrically arranged on the bearing frame, so that the lining pieces are attached to the bearing beams when the lining pieces are placed on the bearing beams, and the stability of the jacking mechanism in transferring the lining pieces is ensured.
The longitudinal movement transportation mechanism comprises a first longitudinal movement track 51, a longitudinal movement base frame 52, a transverse movement frame 53, a track connecting beam 54, a second longitudinal movement track 55 and a bearing slide block 56, as shown in fig. 12. The first longitudinal moving rails are fixedly connected to the frame between the annular assembling mechanism and the jacking mechanism, the longitudinal moving underframe is mounted on the first longitudinal moving rails and longitudinally moves along the first longitudinal moving rails, as shown in fig. 1, specifically, two longitudinal moving rails are arranged, the bottom of the longitudinal moving underframe is provided with wheel sets 521, and as shown in fig. 13, the wheel sets of the longitudinal moving underframe straddle on the first longitudinal moving rails and are driven by chain wheels to travel. The transverse moving frame is connected above the longitudinal moving underframe through a third transverse moving oil cylinder 57, specifically, a second cylinder body mounting hole 522 is arranged on the longitudinal moving underframe, as shown in fig. 13, the cylinder body of the third transverse moving oil cylinder is fixed in the second cylinder body mounting hole, a piston rod of the third transverse moving oil cylinder is fixedly connected with the transverse moving frame, and the third transverse moving oil cylinder stretches and retracts to drive the transverse moving frame to move transversely.
In this embodiment, two second longitudinal moving rails are also symmetrically arranged and connected as a whole through a rail connecting beam, and the rail connecting beam is connected above the transverse moving frame through a third jacking cylinder 58, so that the second longitudinal moving rails are connected above the transverse moving frame, and specifically, the transverse moving frame is provided with a third guide hole 531 and a third cylinder body mounting hole 532, as shown in fig. 14. The bottom of the rail connecting beam is connected with a third guiding upright post 541, as shown in fig. 15, the third guiding upright post is installed in a third guiding hole, a cylinder body of a third jacking cylinder is fixed in the third cylinder body installing hole, a piston rod of the third jacking cylinder is fixedly connected with the rail connecting beam, and the third jacking cylinder stretches and retracts to drive the rail connecting beam and the second longitudinal moving rail to integrally move along the vertical direction. The bearing sliding blocks are installed on the second longitudinal moving rail and move along the second longitudinal moving rail, specifically, the bearing sliding blocks are driven to run through the gear rack, the number of the bearing sliding blocks is two, the bearing sliding blocks are wedge-shaped, when the lining sheets are carried, the lining sheets are attached to the bearing sliding blocks, and stable transportation of the lining sheets during transportation is guaranteed.
The pressing mechanisms are symmetrically arranged on the two sides of the frame, which are close to the annular assembling mechanism, as shown in fig. 2, and press the side lining plates which are just arranged on the two sides of the annular assembling mechanism from the rear, as shown in fig. 16 and 26. The pressing mechanism comprises a pressing frame 61 and a longitudinal pressing oil cylinder 62, more than two longitudinal pressing oil cylinders are distributed on the pressing frame along an arc shape, the arc shape is matched with the shape of the lining, in the embodiment, three longitudinal pressing oil cylinders are distributed on each pressing frame, one end of each longitudinal pressing oil cylinder is fixedly connected to the pressing frame, and in order to facilitate the installation of the longitudinal pressing oil cylinders, the outer side of the pressing frame is in an arc shape matched with the shape of the lining. The hold-down frame is fixedly connected to the frame, so that the direction of the longitudinal hold-down cylinder is along the tunnel direction, and the distance between the front end of the longitudinal hold-down cylinder and the rear side of the side lining sheet which is just installed is smaller than the extension range of the longitudinal hold-down cylinder, so that the longitudinal hold-down cylinder can extend and press the side lining sheet which is installed by the circumferential splicing mechanism, as shown in fig. 16. And the distance between the central points of the longitudinal pressing oil cylinders on the two sides of the same horizontal line is matched with the distance between the central points of the lining pieces on the two sides of the tunnel on the horizontal line, so that the longitudinal pressing oil cylinders can be abutted against the central part of the rear side surface of the side lining piece, and the side lining piece is prevented from being deviated during later-stage pressing.
The front end and the rear end of the frame are both fixed with a support cylinder 7 along the vertical direction, as shown in fig. 1 and 2. When the second longitudinal moving track moves to the front end or the rear end of the frame along with the longitudinal moving underframe, the supporting oil cylinder is supported between the second longitudinal moving track and the frame, so that the second longitudinal moving track can be supported between the supporting oil cylinder and the longitudinal moving underframe when the bearing sliding block moves to the rear end or the front end of the second longitudinal moving track to carry and carry the lining, as shown in fig. 19 and 21.
When the tunnel lining piece assembling trolley provided in the embodiment is used for installing tunnel linings, each ring of tunnel lining pieces is divided into 3 pieces, and each ring of tunnel lining pieces comprises 1 arch lining piece 100 and 2 side lining pieces 200. After the assembling trolley stands in the tunnel, 2 side lining sheets are assembled firstly, and then arch lining sheets are assembled. The method comprises the following specific steps:
s1, carrying and hoisting 1 side lining piece to a jacking mechanism of the assembly trolley, specifically to two bearing beams of the jacking mechanism as shown in figure 17;
the side lining pieces and the arch lining pieces are carried into the tunnel by a transport vehicle 8 and are hoisted to the assembling trolley by a hoisting gantry crane 9. And after the hoisting of the lifting gantry crane is finished, retreating to the transport vehicle for preparing the next hoisting. When the transport vehicle carries the lining sheets, 3 lining sheets of one ring can be simultaneously transported into the tunnel at one time, so that the transport time is saved, the labor is saved, and the side lining sheets and the arch lining sheets can be separately carried, wherein in the embodiment, 2 side lining sheets or 1 arch lining sheet are carried at one time.
S2, jacking side lining pieces of the jacking mechanism are specifically jacking bearing frames and bearing beams of the second jacking oil cylinder as shown in the figure 18, so that the side lining pieces are jacked;
the bearing slider of the longitudinal movement conveying mechanism of the assembling trolley moves to be in place under the jacking mechanism, and the concrete steps are as follows:
s21, moving a longitudinal moving underframe of the longitudinal moving conveying mechanism to the rear part of the frame, which is close to the jacking mechanism, and enabling a second longitudinal moving track of the longitudinal moving conveying mechanism to be located above a supporting oil cylinder at the rear end of the frame;
s22, jacking the supporting oil cylinder to be in contact with the second longitudinal moving track, and supporting the second longitudinal moving track; therefore, when the bearing sliding block moves to the rear end of the second longitudinally moving track to carry the lining sheet, the second longitudinally moving track is supported between the supporting oil cylinder and the longitudinally moving underframe.
And S23, moving the bearing slide block to be right below the jacking mechanism.
And S3, descending the jacking mechanism to place the side lining sheets on the bearing slide blocks of the longitudinal movement conveying mechanism, as shown in figure 19.
S4, synchronously moving and jacking the side lining plates along with the bearing sliding blocks to enable the side lining plates to be positioned right above the annular assembling mechanism of the assembling trolley, and the concrete steps are as follows:
s41, moving the side lining pieces to the upper part of the longitudinal moving base frame along with the bearing sliding blocks, and descending the supporting oil cylinder as shown in figure 20;
if the longitudinally-moving underframe is directly moved, once the second longitudinally-moving rail leaves the support of the support oil cylinder, the weight of the side lining sheet causes uneven stress on the second longitudinally-moving rail, thereby causing construction accidents
S42, the longitudinal moving chassis drives the bearing sliding blocks and the side lining plates to move to the position, close to the annular assembling mechanism, in front of the frame, a second longitudinal moving track of the longitudinal moving conveying mechanism is located above a supporting oil cylinder at the front end of the frame, the supporting oil cylinder and the longitudinal moving conveying mechanism lift the second longitudinal moving track, the second longitudinal moving track is supported, and the second longitudinal moving track is located above the annular assembling mechanism, as shown in figure 21;
and S43, moving the side lining sheet along with the bearing sliding block on the second longitudinal moving track to a position right above the lining sheet suction disc of the annular assembling mechanism, as shown in figure 22.
S5, jacking lining sheet suckers of the annular splicing mechanism to enable the lining sheet suckers to be connected with the side lining sheets;
s6, moving the longitudinal moving conveying mechanism to the rear part of the frame, close to the jacking mechanism, and descending, as shown in fig. 23, and simultaneously driving the side lining sheets to move to the side splicing position by the annular splicing mechanism, as shown in fig. 24;
s7, jacking, longitudinally moving and adjusting the lining piece suckers to enable the side lining pieces to be accurately in place, as shown in figure 25, jacking and pressing the side lining pieces by a pressing mechanism of the assembling trolley from the rear side, so that the side lining pieces and the installed side lining pieces can be conveniently assembled, assembling of 1 side lining piece is completed, and the annular assembling mechanism returns to the top position;
s8, completing the assembly of the other side lining sheet according to the steps S1 to S7, as shown in FIG. 26; specifically, in order to save the assembling time, while the assembling steps S4 to S6 of 1 lining sheet are performed, steps S1 to S3 of another 1 lining sheet are simultaneously performed, as shown in fig. 20 and 22 to 24.
S9, the arch lining sheets are placed on the longitudinal movement conveying mechanism according to the steps S1 to S3, and the step can be simultaneously carried out when the step S4 to the step S6 of assembling the lining sheets of the No. 2 sheet are carried out similarly, as shown in figure 26.
The arch lining piece moves and jacks along with the bearing sliding block synchronously, so that the arch lining piece moves to the arch assembling position to be in place, and the assembling of the 1-ring tunnel lining piece is completed, specifically:
s91, moving the arch lining sheets to the upper part of the longitudinal moving underframe along with the bearing slide block, and descending the supporting oil cylinder;
s92, the longitudinal moving chassis drives the bearing sliding blocks and the arch lining pieces to move to the front part of the frame, close to the annular assembling mechanism, and a second longitudinal moving rail of the longitudinal moving conveying mechanism is located above a supporting oil cylinder at the front end of the frame, as shown in fig. 27, the supporting oil cylinder and the longitudinal moving conveying mechanism both lift up the second longitudinal moving rail to support the second longitudinal moving rail, as shown in fig. 28;
and S93, moving the arch lining sheets to an arch assembling position on the second longitudinal moving track along with the bearing sliding blocks, and longitudinally moving the conveying mechanism to longitudinally lift and adjust the arch lining sheets to enable the arch lining sheets to be accurately in place so as to complete assembling of the arch lining sheets, wherein the assembling is shown in figure 29.
When the side lining sheets or the arch lining sheets are placed on the longitudinal moving conveying mechanism from the jacking mechanism, placed on the arch jacking mechanism from the longitudinal moving conveying mechanism and directly installed on the arch lining sheets by the longitudinal moving conveying mechanism, the longitudinal moving conveying mechanism not only performs adjustment in the longitudinal direction and the vertical direction (jacking and descending), but also can perform transverse adjustment through the transverse moving frame and the third transverse moving oil cylinder.
And S10, the longitudinal moving conveying mechanism descends and moves to the position, close to the jacking mechanism, behind the frame, the assembling trolley moves backwards to assemble the next annular tunnel lining sheet, and the steps are sequentially circulated as shown in the figure 30. And after the 6-ring tunnel lining sheets are assembled, grouting and backfilling are performed at one time.
Claims (10)
1. A construction process of a tunnel lining sheet assembling trolley is characterized in that: every 1 tunnel lining piece of ring is assembled and is included assembling of 1 hunch portion lining piece and 2 side lining pieces, assembles the platform truck and assembles 2 side lining pieces earlier behind the tunnel station, assembles hunch portion lining piece again, and concrete step is:
s1, carrying and hoisting 1 side lining sheet to a jacking mechanism of an assembly trolley;
s2, jacking side lining sheets of the jacking mechanism, and moving a bearing slide block of a longitudinal movement conveying mechanism of the assembly trolley to a position right below the jacking mechanism;
s3, lowering a jacking mechanism to place the side lining pieces on the bearing sliding block;
s4, synchronously moving and jacking the side lining pieces along with the bearing sliding blocks to enable the side lining pieces to be positioned right above the annular assembling mechanism of the assembling trolley;
s5, jacking lining sheet suckers of the annular assembling mechanism are connected with the side lining sheets;
s6, moving the longitudinal moving and conveying mechanism to the position behind the frame, close to the jacking mechanism, and descending, and driving the side lining sheets to move to the side assembling position by the circumferential assembling mechanism;
s7, jacking, longitudinally moving and adjusting the lining piece suckers to enable the side lining pieces to be accurately in place, completing the assembly of 1 side lining piece, and returning the annular assembly mechanism to the top position;
s8, completing the assembly of the other side lining sheet according to the steps S1-S7;
s9, placing the arch lining sheets on the longitudinal movement conveying mechanism according to the steps S1-S3, and enabling the arch lining sheets to synchronously move and lift up along with the bearing sliding blocks, so that the arch lining sheets are moved to the arch assembling position to be in place, and assembling of the 1-ring tunnel lining sheets is completed;
and S10, the longitudinal moving conveying mechanism descends and moves to the position, close to the jacking mechanism, behind the frame, the assembling trolley moves backwards to assemble the next annular tunnel lining sheet, and the steps are circulated in sequence.
2. The construction process of the tunnel lining sheet assembling trolley according to claim 1, wherein: and S7, after the side lining sheets are accurately in place, jacking and pressing the side lining sheets by a pressing mechanism of the assembly trolley from the rear side.
3. The construction process of the tunnel lining sheet assembling trolley according to claim 1, wherein: and after the 6-ring tunnel lining sheets are assembled, grouting and backfilling are performed for one time.
4. The construction process of the tunnel lining sheet assembling trolley according to claim 1, wherein: the side lining pieces and the arch lining pieces are carried into the tunnel by the transport vehicle and are hoisted to the assembling trolley by the hoisting gantry crane.
5. The construction process of the tunnel lining sheet assembling trolley according to claim 1, wherein: the concrete steps that the bearing slide block of the longitudinal movement conveying mechanism moves to the position right below the jacking mechanism in the step S2 are as follows:
s21, moving a longitudinal moving underframe of the longitudinal moving conveying mechanism to the rear part of the frame, which is close to the jacking mechanism, and enabling a second longitudinal moving track of the longitudinal moving conveying mechanism to be located above a supporting oil cylinder at the rear end of the frame;
s22, jacking the supporting oil cylinder to be in contact with the second longitudinal moving track, and supporting the second longitudinal moving track;
and S23, moving the bearing slide block to be right below the jacking mechanism.
6. The construction process of the tunnel lining sheet assembling trolley according to claim 1, wherein: the specific steps in the step S4 are as follows:
s41, moving the side lining sheet to the upper part of the longitudinal moving base frame along with the bearing sliding block, and descending the supporting oil cylinder;
s42, the longitudinal moving chassis drives the bearing sliding blocks and the side lining plates to move to the front part of the frame, close to the annular assembling mechanism, a second longitudinal moving track of the longitudinal moving conveying mechanism is located above a supporting oil cylinder at the front end of the frame, the supporting oil cylinder and the longitudinal moving conveying mechanism lift the second longitudinal moving track, the second longitudinal moving track is supported, and the second longitudinal moving track is located above the annular assembling mechanism;
and S43, the side lining pieces move on the second longitudinal movement track along with the bearing sliding blocks to be right above the lining piece suckers of the annular assembling mechanism.
7. The construction process of the tunnel lining sheet assembling trolley according to claim 1, wherein: the specific steps in the step S9 are:
s91, moving the arch lining sheets to the upper part of the longitudinal moving underframe along with the bearing slide block, and descending the supporting oil cylinder;
s92, the longitudinal moving chassis drives the bearing sliding blocks and the arch lining pieces to move to the front part of the frame, close to the annular assembling mechanism, a second longitudinal moving rail of the longitudinal moving conveying mechanism is positioned above a supporting oil cylinder at the front end of the frame, and the supporting oil cylinder and the longitudinal moving conveying mechanism lift the second longitudinal moving rail to support the second longitudinal moving rail;
and S93, moving the arch lining sheets to an arch assembling position on a second longitudinal moving rail along with the bearing sliding block, and longitudinally moving the conveying mechanism to longitudinally lift the arch lining sheets to adjust so that the arch lining sheets are accurately in place, thereby completing the assembling of the arch lining sheets.
8. The construction process of the tunnel lining sheet assembling trolley according to claim 1, wherein: and a transverse moving frame and a third transverse moving oil cylinder which are used for transverse adjustment are further arranged on the longitudinal moving conveying mechanism, and when the lateral lining sheets or the arch lining sheets are placed on the longitudinal moving conveying mechanism from the jacking mechanism, placed on the arch jacking mechanism from the longitudinal moving conveying mechanism and directly installed on the arch lining sheets by the longitudinal moving conveying mechanism, the longitudinal moving conveying mechanism is used for carrying out adjustment in the transverse, longitudinal and vertical directions.
9. The construction process of the tunnel lining sheet assembling trolley according to claim 1, wherein: when the assembling steps S4 to S6 of 1 lining piece are carried out, the steps S1 to S3 of another 1 lining piece are carried out at the same time.
10. The construction process of the tunnel lining sheet assembling trolley according to claim 2, wherein: the transport vehicle carries 2 side lining sheets or/and 1 arch lining sheet at a time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210944851.6A CN115492603A (en) | 2022-08-08 | 2022-08-08 | Construction process of tunnel lining sheet assembling trolley |
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| CN202210944851.6A CN115492603A (en) | 2022-08-08 | 2022-08-08 | Construction process of tunnel lining sheet assembling trolley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116927831A (en) * | 2023-09-14 | 2023-10-24 | 湖南省通盛工程有限公司 | Tunnel arch protection integral dismounting equipment and construction method |
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2022
- 2022-08-08 CN CN202210944851.6A patent/CN115492603A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116927831A (en) * | 2023-09-14 | 2023-10-24 | 湖南省通盛工程有限公司 | Tunnel arch protection integral dismounting equipment and construction method |
| CN116927831B (en) * | 2023-09-14 | 2023-12-19 | 湖南省通盛工程有限公司 | Tunnel arch protection integral dismounting equipment and construction method |
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