CN212867565U - A lining cutting platform truck that is used for full circle tunnel of minor diameter to encircle wall construction - Google Patents
A lining cutting platform truck that is used for full circle tunnel of minor diameter to encircle wall construction Download PDFInfo
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- CN212867565U CN212867565U CN202021116063.0U CN202021116063U CN212867565U CN 212867565 U CN212867565 U CN 212867565U CN 202021116063 U CN202021116063 U CN 202021116063U CN 212867565 U CN212867565 U CN 212867565U
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Abstract
The utility model discloses a lining cutting platform truck for construction of minor diameter full circle tunnel arch wall, single set of lining cutting platform truck are formed by articulated the connecting of multisection dolly, including template system, portal system, braced system, bracket system, control system and dolly coupling mechanism, the platform truck is through strengthening the design of top mould, and crossbeam and vertical braces can not be established to its bracket system to headroom in the increase portal system is effective, realizes that material transport locomotive walks inside the platform truck in the minor diameter tunnel. The trolley is integrally designed in a segmented mode, the trolley connecting mechanisms are hinged among the segments, and the adjacent trolley connecting part lap joint formwork mechanisms can be meshed with the inner arc side of the curve section of the tunnel in a special design mode, so that the adaptability of the lining trolley to the tunnel with the small curve radius is greatly improved, the construction quality of the curve section of the tunnel is high, the single construction length of the curve section is guaranteed, and the design length of the trolley is not required to be shortened. The utility model has the characteristics of maneuverability is strong, the efficiency of construction is high, the shaping quality is good.
Description
Technical Field
The utility model belongs to the technical field of the tunnel construction, concretely relates to lining cutting platform truck for construction of minor diameter full circle tunnel arch wall.
Background
In the secondary lining construction of a tunnel, a lining trolley is generally used. With the continuous development of cities, tunnels such as municipal rainwater and sewage with the diameter of more than 3m are gradually formed. First, these tunnel-forming holes are generally smaller in diameter, smaller than conventional subway tunnels, and mostly circular. In the second lining construction process, the inverted arch part is constructed in advance for realizing the bottom passing of the material transport locomotive, but how to realize the passing of the material transport locomotive in the arch wall trolley under the small section is still one of the technical difficulties. Secondly, along with the increase of municipal works quantity, a large number of existing buildings and structures need to be avoided in tunnel construction, so that the curve radius of the tunnel is continuously reduced, and higher technical requirements are provided for the curve adaptability of the lining trolley. The length problem of the traditional trolley is difficult to meet the requirement of the turning radius, but after the length of the shortened trolley meets the requirement of the turning radius, the length of single construction is shortened, and the construction progress is difficult to guarantee.
Disclosure of Invention
In order to overcome the technical defect that traditional platform truck can't turn in minor diameter full circle tunnel among the prior art, the utility model provides a lining cutting platform truck for minor diameter full circle tunnel arch wall construction, through the sectional type design, the sectional platform workshop adopts trolley coupling mechanism articulated, adjacent trolley junction overlap joint template mechanism leaves the clearance of certain width, but at the special design of its inner arc side interlock of tunnel curve section, improve the adaptability of lining cutting platform truck to little curve radius tunnel by a wide margin, solved above-mentioned technical problem.
The utility model discloses a following technical scheme realizes above-mentioned mesh, a lining cutting platform truck for minor diameter full circle tunnel encircles wall construction, is formed by connecting the little platform truck of multisection, and specific figure can be according to encircleing wall construction single concrete cloth length and confirming, and the calculation of the construction error is confirmed according to tunnel curve radius and two lining thickness to the little platform truck length of single section.
The lining trolley comprises a template system, a portal system, a supporting system, a bracket system, a control system and a trolley connecting mechanism.
The template system comprises a top template, side templates, a template lapping mechanism and an end template, wherein two ends of the top template are respectively connected with the side templates symmetrically distributed on two sides in a hinged mode, a pouring gate and a template-contained grouting port are arranged on the top template, and an observation window is arranged on the side templates; the overlapping template mechanisms are arranged at two ends of the trolley, the adjacent trolleys in the front and the back are connected in an overlapping mode, the trolley on the front side is provided with an outer overlapping template, the trolley on the back side is provided with an inner overlapping template, and the first section of the lining trolley and the end part of the last section of the trolley are provided with outer overlapping templates or end molds.
The portal system is arranged on the inner side of the template system and comprises a portal beam, a portal top surface longitudinal connecting beam, a portal upright post, a portal longitudinal corbel beam, a portal longitudinal cross brace and a portal bottom longitudinal beam which are connected from top to bottom.
The supporting system comprises a template translation oil cylinder, a side mold retracting oil cylinder, a first side mold supporting screw rod, a second side mold supporting screw rod, a portal cross supporting screw rod, a trolley jacking mechanism, a travelling mechanism and a bottom supporting screw rod from top to bottom.
The bracket system comprises a bracket longitudinal beam, a translation pull rod and a connecting angle plate, wherein the bracket longitudinal beam is arranged above the portal beam, the translation pull rod is used for tying the bracket longitudinal beams on two sides in a hinged mode, and the connecting angle plate is positioned above the bracket longitudinal beam and is used for connecting the top die with the bracket longitudinal beam.
The control system comprises a hydraulic control system consisting of a trolley operating valve and a hydraulic pump station, and an electric control system of the trolley, and the respective integrated control systems of the small trolley sections are controlled independently.
The trolley connecting mechanism is arranged at the position of a portal frame cross beam at the end part of two adjacent sections of trolleys and comprises a connecting double-lug plate, a connecting single-lug plate and a fixed pin shaft.
According to the lining trolley for the construction of the small-diameter full-circle tunnel arch wall, the overlapping template mechanisms are connected in a tongue-and-groove mode, the inner side overlapping templates are slightly lower, the inner side overlapping templates are not completely meshed but leave a certain gap, and the gap width is determined according to the turning radius of the tunnel and the length of the sectional trolley. When the tunnel straightway is constructed, the gaps are filled with rubber strips, convex grooves are prevented from being formed after concrete pouring, when the tunnel enters a curve section for construction, the inner arc side gaps of the trolley adapt to curve changes and are occluded, the outer arc side gaps are pulled open, the inner and outer two overlapping templates can still be guaranteed to be in overlapping joint, and the convex grooves need to be polished after the concrete pouring is finished. The gap width is controlled by adjusting the relative position of the ear plate hole of the connecting mechanism of the small trolley in the trolley during the processing of the trolley.
The lining trolley for the construction of the small-diameter full-circle tunnel arch wall is characterized in that the end part of the template system is provided with a flange plate, the flange plates at the end parts of two sides of the lining trolley are provided with open circular holes, and the rest circular holes are provided; the overlapped template is divided into three parts in the same form as the top and side moulds, the upper opening round hole is connected with a flange plate bolt at the end part of the template, the end mould is in the form of assembling a plurality of single fan-shaped steel plates and stiffening angle steel, the upper opening round hole is provided with a radial long round hole which is connected with the flange plate bolt, and when the end part of the trolley is positioned at a deformation joint, the installation position of the end mould can be adjusted in the radial direction.
The lining trolley for the small-diameter full-circle tunnel arch wall construction is characterized in that a portal stand column is in a double-channel steel and steel plate splicing form, two channel steel webs are opposite and leave a certain gap, steel plates are welded on the flange sides of two channel steel plates and connected, the channel steel webs are provided with double-ear holes, and a first side mold supporting screw rod is connected.
According to the lining trolley for the small-diameter full-circle tunnel arch wall construction, the portal cross beam, the portal longitudinal bracket beam and the portal bottom longitudinal beam are shaped steel beams; the top of the portal frame beam is welded with a template translation oil cylinder double-lug plate; a side mould retracting and supporting oil cylinder is welded on the outer side surface of the longitudinal bracket beam of the portal frame and is connected with a double-lug plate; a bottom support socket and a portal cross support screw rod are welded at the bottom of the portal bottom longitudinal beam, and a second side mold support screw rod is connected with a double-lug plate; the two ends of the bottom supporting screw rod are steel plates, one end of the bottom supporting screw rod is inserted into the bottom supporting socket of the portal bottom longitudinal beam, and the other end of the bottom supporting screw rod abuts against the trolley track.
According to the lining trolley for the small-diameter full-circle tunnel arch wall construction, the portal frame is provided with the double-lug holes, the double-lug plates are arranged at the positions corresponding to the templates and are respectively provided with the double-lug plates, and the corresponding side mold retraction oil cylinder, the first side mold support screw rod and the second side mold support screw rod are connected with the trolley in a fixed pin shaft mode;
according to the lining trolley for the small-diameter full-circle tunnel arch wall construction, the bracket longitudinal beam is not connected with the portal frame, namely the bracket longitudinal beam is directly placed at the top of the portal frame cross beam, but the bracket longitudinal beam is provided with the longitudinal displacement limiting block.
The lining trolley for the small-diameter full-circle tunnel arch wall construction is characterized in that the template translation oil cylinder is arranged at the top of a portal beam, one end of the template translation oil cylinder is connected with double lug plates of the template translation oil cylinder on the portal beam, one end of the template translation oil cylinder is connected with double lug plates of a bracket longitudinal beam pre-welded on a bracket longitudinal beam on the left side, and the trolley jacking mechanism is arranged between the portal bracket longitudinal beam and the travelling mechanism.
The lining trolley for the small-diameter full-circle tunnel arch wall construction is characterized in that a reserved gap between two connecting lug plates of the trolley connecting mechanism is large, after the connecting lug plates are provided with the fixed pin shafts, the adjacent trolleys are fixed in a longitudinal hinged mode along the tunnel, a certain vertical movable space is reserved, and the unidirectional movable distance is larger than the maximum modulus of the top die.
When the lining trolley is put into a single set for secondary lining construction of a tunnel, an end mold plugging end head is installed at the inner end of a hole of the trolley, an outer lapping template is installed at the end of the hole, a formed two-lining structure of a former mold is lapped on the outer lapping template, and an end mold plugging end head is used at a deformation joint; when the lining trolley is put into a plurality of sets for secondary lining construction of a tunnel, end mold plugging ends are installed in odd bins, outer overlapping formworks are installed in even bins, the odd bins on two sides are overlapped to form a two-lining structure, and end mold plugging ends are used at deformation joints.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can reach following beneficial effect:
1. the utility model relates to a lining cutting platform truck for minor diameter full circle tunnel arch wall construction, through strengthening the design of the top mould stiffening rib, the bracket system can not be provided with the crossbeam and the vertical support, in order to increase the effective internal clearance of the portal system, after the portal cross brace lead screw is disassembled after the concrete reaches the stripping strength, or in the state of the trolley demoulding, the material transport locomotive in the minor diameter tunnel is realized to pass through the inside of the platform truck;
2. the utility model discloses a platform truck segmentation design, the segmentation platform workshop adopt the dolly coupling mechanism articulated, adjacent dolly junction overlap joint template mechanism leaves certain width clearance, but improves the adaptability of lining cutting platform truck to little curve radius tunnel by a wide margin at the special design of its inner arc side interlock of tunnel curve section. The construction quality of the tunnel curve section is high, the single construction length of the curve section is ensured, and the design length of the trolley is not required to be shortened;
3. the utility model has strong operability, realizes orderly adjustment of each hydraulic oil cylinder in a subsection trolley workshop by respectively integrating respective control systems among the subsection trolleys and combining the special design of reserved gaps of double lug plates of the trolley connecting mechanism, and avoids uneven hydraulic pressure when one set of control system is used, thus leading to uneven lifting and collection speed of the template and further causing the phenomenon of extrusion deformation of the lap joint template mechanism;
4. the utility model discloses an optimize portal stand design, the stand is inside to establish first side forms and support the double-ear hole of lead screw, avoids setting up the double-ear board outside the portal stand, can increase first side forms and support lead screw adjustment space, when the platform truck track location is not good enough, template translation hydro-cylinder regulating variable is great leads to template one side and portal distance less, still can install first side forms smoothly and support the lead screw and target in place;
5. the utility model discloses a carry out the disconnect-type design to platform truck operating valve, hydraulic power unit, solved in the small cross section under the headroom platform truck highly limited, the unable laying of traditional pump valve unification arrangement form at lining cutting platform truck one side problem.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of a trisection section of a lining trolley for small-diameter full-circle tunnel arch wall construction according to the present invention;
FIG. 2 is a side view of a three-segmented section of a lining trolley for small diameter full circle tunnel arch wall construction of the present invention;
FIG. 3 is a schematic structural view of a single-section trolley of a lining trolley for the construction of a small-diameter full-circle tunnel arch wall of the present invention;
FIG. 4 is a front view of a single-section trolley of a lining trolley for small-diameter full-circle tunnel arch wall construction according to the present invention;
FIG. 5 is a side view of a single-section trolley of a lining trolley for small-diameter full-circle tunnel arch wall construction according to the present invention;
FIG. 6 is a schematic structural view of a single-section trolley removal formwork system of a lining trolley for small-diameter full-circle tunnel arch wall construction according to the present invention;
fig. 7 is a schematic structural view of the overlapping template mechanism of the present invention;
fig. 8 is a schematic structural view of the outer overlapping formwork of the present invention;
fig. 9 is a schematic structural view of the inner overlapping formwork of the present invention;
fig. 10 is a partially enlarged schematic view of the template overlapping mechanism according to the present invention;
fig. 11 is a schematic structural view of the end mold of the present invention;
FIG. 12 is a schematic view of the connection of two trolleys;
in the figure: a-a first section of a segmental trolley, B-a second section of the segmental trolley, C-a third section of the segmental trolley, 1-a template system, 11-a top mold, 111-a pouring gate, 112-a tape mold grouting port, 113-a flange plate, 12-a side mold, 121-an observation window, 13-a lap joint template mechanism, 131-an outer lap joint template, 132-an inner lap joint template and 14-an end mold;
2-a support system, 21-a template translation oil cylinder, 22-a side mold retraction oil cylinder, 23-a first side mold support screw rod, 24-a second side mold support screw rod, 25-a portal cross support screw rod, 26-a trolley jacking mechanism, 27-a walking mechanism and 28-a bottom support screw rod;
3-gantry system, 31-gantry beam, 311-template translation cylinder double-lug plate, 32-gantry top surface longitudinal connecting beam, 33-gantry upright column, 34-gantry longitudinal bracket beam, 341-side mold retraction cylinder connecting double-lug plate, 35-gantry longitudinal cross brace, 36-gantry bottom longitudinal beam, 361-bottom support socket, 362-gantry cross brace screw rod connecting double-lug plate, 363-second side mold support screw rod connecting double-lug plate;
4-bracket system, 41-bracket longitudinal beam, 411-bracket longitudinal beam double lug plate, 412-longitudinal displacement limiting block, 42-translation pull rod and 43-connecting angle plate;
5-a control system, 51-a hydraulic control system, 511-a trolley operating valve, 512-a hydraulic pump station and 52-a trolley electrical control system;
6-a trolley connecting mechanism, 61-a connecting double-lug plate, 62-a connecting single-lug plate and 63-a fixed pin shaft;
7-trolley sleeper rail, 8-material transport locomotive sleeper rail and 9-material transport locomotive.
Detailed Description
Lining cutting platform truck connect by the little platform truck of multisection and form, specific figure can be according to hunch wall construction single concrete cloth length determination. As shown in fig. 1 and fig. 2, a schematic structural diagram of a three-section embodiment of a lining trolley for small-diameter full-circle tunnel arch wall construction is shown, and a connection form of a 3-section trolley A, B, C is taken as an example for description, but it should be noted that the present invention is not limited to the connection form of the 3-section trolley. The length of the single-section trolley is determined by calculation according to the curve radius of the tunnel and the construction error allowed by the thickness of the two linings.
In this embodiment, the length of the single-section trolley is 4.8m, and as shown in fig. 3 to 5, the length is a schematic structural diagram of the single-section trolley. The lining trolley comprises a template system 1, a supporting system 2, a gantry system 3, a bracket system 4, a control system 5 and a trolley connecting mechanism 6. The small trolley rooms are respectively integrated with respective control systems 5 and are mutually independent.
The template system 1 comprises a top template 11, side templates 12, a template lapping mechanism 13 and an end template 14, wherein two ends of the top template 11 are respectively connected with the side templates 12 symmetrically distributed on two sides in a hinged mode, a pouring gate 111 and a template-contained grouting port 112 are arranged on the top template 11, and an observation window 121 is arranged on the side templates 12. Fig. 6 is a schematic structural diagram of the single-section trolley template removing system 1.
As shown in fig. 7, for the schematic structure of the overlapping template mechanism 13, the overlapping template mechanism 13 is disposed at two ends of the trolley, the adjacent trolleys are connected to adopt the overlapping form, the trolley on the front side is provided with the outside overlapping template 131, the trolley on the rear side is provided with the inside overlapping template 132, as shown in fig. 8 to 10, the schematic structure of the outside overlapping template 131 and the inside overlapping template 132 is illustrated.
First section of lining cutting platform truck and last section dolly tip are provided with outside overlap joint template 131 or end mould 14, as shown in fig. 11, do the utility model discloses end mould 14's schematic structure drawing. Specifically, since the section of the tunnel is small and the casting height of the concrete is low, the casting opening 111 only needs to be arranged at the top of the top die 11, and the observation windows 121 are distributed in a finished product shape.
The overlapping template mechanism 13 is connected in a tongue-and-groove mode, the inner overlapping template 132 is slightly lower, the inner overlapping template and the inner overlapping template are not completely meshed but leave a certain gap, and the gap width is determined by calculation according to the turning radius of the tunnel and the length of the sectional trolley. When the straight line section of the tunnel is constructed, the gap is filled with a rubber strip, so that a convex groove is prevented from being formed after concrete is poured; when the tunnel enters a curve section for construction, the inner arc side clearance of the trolley adapts to curve change and is occluded, the outer arc side clearance is pulled open, the inner and outer two overlapping templates can still be ensured to be in overlapping joint, and the convex groove needs to be polished after concrete pouring is finished. The end parts of the template system 1 are provided with flanges 113, the flanges 113 at the end parts of the two sides of the lining trolley are provided with circular holes in the open ring direction, and the rest of the flanges are provided with circular holes.
The overlapped template is divided into three parts in the same form as the top and side moulds, the upper round hole is in bolted connection with a flange plate 113 at the end part of the template, the end mould 14 is in an assembling form of a plurality of single fan-shaped steel plates and stiffening angle steel, the upper round hole is provided with a radial long round hole which is in bolted connection with the flange plate 113, and when the end part of the trolley is positioned at a deformation joint, the installation position of the end mould 14 can be adjusted in the radial direction.
The supporting system 2 comprises a template translation oil cylinder 21, a side mould retracting oil cylinder 22, a first side mould supporting screw rod 23, a second side mould supporting screw rod 24, a portal cross bracing screw rod 25, a trolley jacking mechanism 26, a traveling mechanism 27 and a bottom supporting screw rod 28 from top to bottom, and each supporting screw rod is a threaded length-adjustable supporting rod.
The portal system 3 is arranged on the inner side of the template system 1 and comprises a portal beam 31, a portal top surface longitudinal connecting beam 32, a portal upright post 33, a portal longitudinal bracket beam 34, a portal longitudinal cross brace 35 and a portal bottom longitudinal beam 36 which are connected from top to bottom. Specifically, the gantry upright column 33 adopts a double-channel steel and steel plate splicing mode, two channel steel webs are opposite and leave a certain gap, and the two channel steel webs are connected by welding steel plates on the flange edges of the two channel steels; the channel steel web plate is provided with double ear holes which are connected with a first side die supporting screw rod 23. The portal cross beam 31, the portal longitudinal bracket beam 34 and the portal bottom longitudinal beam 36 are H-shaped steel beams, and stiffening plates are welded on the H-shaped steel beams; the top of the portal frame beam 31 is welded with a template translation oil cylinder double-lug plate 311; a side die supporting and withdrawing oil cylinder is welded on the outer side surface of the longitudinal bracket beam 34 of the portal frame and is connected with a double-lug plate 341; a bottom support socket 361, a portal cross brace screw rod connecting double-lug plate 362 and a second side mold support screw rod connecting double-lug plate 363 are welded at the bottom of the portal bottom longitudinal beam 36; the two ends of the bottom support screw 28 are steel plates, one end of the bottom support screw is inserted into the bottom support socket 361 of the portal bottom longitudinal beam 36, and the other end of the bottom support screw abuts against the trolley track 7. The portal beam 31 is connected with the portal upright column 33, and a stiffening axillary angle is arranged at the connection part; the portal upright column 33 is connected with the portal longitudinal bracket beam 34 and the portal bottom longitudinal beam 36, and a stiffening armpit angle is arranged at the joint of the bottom longitudinal beam; the longitudinal connecting beam 32 on the top surface of the portal is connected with the portal beam 31; the portal longitudinal cross brace 35 is connected with the portal upright post 33; the parts are connected into a whole in a welding or mechanical connection mode, so that the integral rigidity and stability of the gantry system 3 are guaranteed; the portal is provided with double-lug holes, the double-lug plates are arranged at the corresponding positions of the template corresponding to the double-lug plates, and the corresponding side die retraction oil cylinder 22, the first side die support screw 23, the second side die support screw 24 are connected with the trolley in a fixed pin shaft mode.
The template translation oil cylinder 21 is arranged at the top of the portal cross beam 31, one end of the template translation oil cylinder is connected with the double lug plates 311 of the template translation oil cylinder on the portal cross beam 31, one end of the template translation oil cylinder is connected with the double lug plates 411 of the bracket longitudinal beam prewelded on the left bracket longitudinal beam 41, and the trolley jacking mechanism 26 is arranged between the portal bracket longitudinal beam and the travelling mechanism 27.
The bracket system 4 comprises a bracket longitudinal beam 41, a translation pull rod 42 and a connecting angle plate 43; the bracket longitudinal beam 41 is arranged above the portal cross beam 31, longitudinal displacement limiting blocks are arranged at two ends of the bracket longitudinal beam, the bracket longitudinal beams 41 on two sides are pulled by the translation pull rod 42 to strengthen the transverse connection of the bracket longitudinal beam, the connecting angle plate 43 is arranged above the bracket longitudinal beam 41 to connect the top die 11 with the bracket longitudinal beam 41, the bracket longitudinal beam 41 is not connected with the portal, namely the bracket longitudinal beam 41 is directly arranged at the top of the portal cross beam 31, but the bracket longitudinal beam 41 is provided with the longitudinal displacement limiting blocks 412 to prevent the template from longitudinally moving.
The control system 5 comprises a hydraulic control system 51 consisting of a trolley operation valve 511 and a hydraulic pump station 512, and a trolley electric control system 52. The trolley operation valve 511 and the hydraulic pump station 512 are separately arranged on the bottom longitudinal beams 36 on the two sides of the trolley.
The trolley connecting mechanism 6 is arranged at the portal frame beam 31 at the end part of two adjacent sections of trolleys and comprises a connecting double-lug plate 61, a connecting single-lug plate 62 and a fixed pin shaft 63; specifically, the reserved gap between the connection double lug plates 61 of the trolley connection mechanism 6 is large, after the connection single lug plates 62 are provided with the fixed pin shafts 63, the adjacent trolleys are fixed in a longitudinal hinged mode along the tunnel, a certain vertical movable space is reserved, and the unidirectional movable distance is larger than the designed maximum modulus of the top die 11. Fig. 12 is a schematic structural diagram of two trolleys connected by the trolley connecting mechanism 6.
The gap width of the lap joint template mechanism 13 is controlled by adjusting the relative position of the ear plate hole of the trolley connecting mechanism 6 in the trolley during the processing of the trolley.
Utilize the full circle tunnel arch wall lining platform truck of small cross section stated in this embodiment:
s1: laying a trolley sleeper track 7 and a material transport locomotive sleeper track 8 on the formed inverted arch, and mechanically dragging the trolley to be in place; installing a rubber strip at the position of the overlapping template mechanism 13 during construction of a straight section of the tunnel; the inner arc end of the curve segment is overlapped with the template mechanism 13 to be occluded or partially occluded, and the rubber strip is not installed;
s2: sequentially operating the translation oil cylinders 21 of the template systems 1 to realize template centering;
s3: operating the small trolley jacking mechanisms 26 and the side die take-up and support oil cylinders 22 in sequence to realize the expenditure and the in-position of the top die 11 and the side die 12 in sequence;
s4: installing a first side formwork support screw rod 23, a second side formwork support screw rod 24, a portal cross support screw rod 25 and a bottom support screw rod 28, and finishing the erection of the support system 2;
s5: when the tunnel is put into the construction of a single set of lining trolley, an end mold 14 is installed at the inner end of the trolley close to the hole to plug the end head, an outer overlapping template 131 is installed at the end close to the hole opening, and a formed two-lining structure of the upper mold is overlapped; when the tunnel is put into a plurality of sets of lining trolley cabin-jumping construction, an odd cabin installation end mold 14 blocks the end head; the outer lapping template 131 is installed on the even number bins, and the odd number bins on the two sides of the lapping are lapped to form a two-lining structure; end molds 14 are used for plugging end heads at the deformation joints;
s6: pouring tunnel arch wall concrete and completing the grouting operation with the mold;
s7: sequentially operating the trolleys to demold, wherein the sequence is opposite to the sequence of the formwork support in the steps S4-S5; the tunnel arch wall concrete reaches the removable portal stull lead screw 25 of form removal intensity, or the platform truck accomplishes the drawing of patterns after, material transport locomotive 9 can be inside current in portal system 3.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (10)
1. A lining trolley for small-diameter full-circle tunnel arch wall construction is characterized by comprising a template system (1), a supporting system (2), a portal system (3), a bracket system (4), a control system (5) and a small trolley connecting mechanism (6);
the template system (1) comprises a top mold (11), side molds (12), a template overlapping mechanism (13) and an end mold (14), wherein two ends of the top mold (11) are respectively connected with the side molds (12) which are symmetrically distributed on two sides in a hinged mode, a pouring port (111) is formed in the top mold (11) and an observation window (121) is formed in the side mold with a mold pouring port (112), the template overlapping mechanism (13) is arranged at two ends of a trolley, the front trolley and the rear trolley are connected in an overlapping mode, the front trolley is provided with an outer side overlapping template (131), the rear trolley is provided with an inner side overlapping template (132), and the end parts of a first section and a last section of a lining trolley are provided with outer side overlapping templates (131) or end molds (14);
the supporting system (2) comprises a template translation oil cylinder (21), a side mould retracting oil cylinder (22), a first side mould supporting screw rod (23), a second side mould supporting screw rod (24), a portal cross supporting screw rod (25), a trolley jacking mechanism (26), a travelling mechanism (27) and a bottom supporting screw rod (28) from top to bottom;
the portal system (3) is arranged on the inner side of the template system (1) and comprises a portal beam (31), a portal top surface longitudinal connecting beam (32), a portal upright post (33), a portal longitudinal bracket beam (34), a portal longitudinal cross brace (35) and a portal bottom longitudinal beam (36) which are connected from top to bottom;
the bracket system (4) comprises bracket longitudinal beams (41), a translation pull rod (42) and connecting angle plates (43), wherein the bracket longitudinal beams (41) are arranged above the portal cross beam (31), the translation pull rod (42) is used for drawing the bracket longitudinal beams (41) on two sides in a hinged mode, and the connecting angle plates (43) are positioned above the bracket longitudinal beams (41) and are used for connecting the top die (11) with the bracket longitudinal beams (41);
the control system (5) comprises a hydraulic control system (51) consisting of a trolley operating valve (511) and a hydraulic pump station (512) and a trolley electrical control system (52);
the trolley connecting mechanism (6) is arranged at the portal frame cross beam (31) of the end parts of two adjacent sections of trolleys and comprises a connecting double-lug plate (61), a connecting single-lug plate (62) and a fixed pin shaft (63).
2. A lining trolley for construction of a small diameter full circular tunnel arch wall according to claim 1, wherein: the overlapping template mechanism (13) is connected in a tongue-and-groove mode, the inner overlapping template (132) is lower than the outer overlapping template (131), the inner overlapping template and the outer overlapping template are not completely occluded but leave a gap, and when the straight line section of the tunnel is constructed, the gap is filled with a rubber strip, so that a convex groove is prevented from being formed after concrete is poured; when the tunnel enters a curve section for construction, the inner arc side clearance of the trolley adapts to curve change and is occluded, the outer arc side clearance is pulled open, the inner and outer two overlapping templates can still be ensured to be in overlapping joint, and the convex groove needs to be polished after concrete pouring is finished.
3. A lining trolley for construction of a small diameter full circular tunnel arch wall according to claim 1, wherein: the end of the template system (1) is provided with a flange (113), the flanges (113) at the end parts of two sides of the lining trolley are opened into circular holes, the other circular holes are opened, the overlapped template is divided into three parts in a same form with the top and side molds, the circular holes are opened on the circular holes and are connected with the flanges (113) at the end parts of the template through bolts, the end mold (14) is in an assembled form of a plurality of fan-shaped steel plates and stiffening angle steel, the radial circular holes are formed on the end mold, and the end mold is connected with the flanges (113) through bolts.
4. A lining trolley for construction of a small diameter full circular tunnel arch wall according to claim 1, wherein: portal stand (33) adopt double flute steel to add steel sheet concatenation form, and two channel-section steel webs are relative and leave certain space, are connected through two channel-section steel flange limit welded steel plates, and the channel-section steel web is opened there is the binaural hole, connects first side mould support lead screw (23).
5. The lining trolley for the small-diameter full-round tunnel arch wall construction is characterized in that the portal cross beam (31), the portal longitudinal corbel beam (34) and the portal bottom longitudinal beam (36) are section steel beams, a template translation cylinder double-lug plate (311) is welded at the top of the portal cross beam (31), a side mold retraction cylinder connecting double-lug plate (341) is welded on the outer side surface of the portal longitudinal corbel beam (34), a bottom supporting socket (361) and a portal cross supporting screw rod (25) are welded at the bottom of the portal bottom longitudinal beam (36), a second side mold supporting screw rod (24) is connected with the double-lug plate, the two ends of the bottom supporting screw rod are steel plates, one end of the bottom supporting screw rod is inserted into the portal bottom longitudinal beam (36), and the other end of the bottom supporting screw rod abuts against a trolley track.
6. The lining trolley for the small-diameter full-circle tunnel arch wall construction is characterized in that a double-lug hole is formed in the portal system (3), double-lug plates are arranged at positions corresponding to the double-lug plates and corresponding side mold retracting and supporting oil cylinders (22), first side mold supporting screw rods (23) and second side mold supporting screw rods (24) are connected with the trolley in a fixed pin shaft mode.
7. The lining trolley for the construction of the small-diameter full-round tunnel arch wall is characterized in that the bracket longitudinal beam (41) is not connected with a portal frame, the bracket longitudinal beam (41) is directly placed on the top of a portal frame cross beam (31) and is provided with a longitudinal displacement limiting block (412).
8. The lining trolley for the construction of the small-diameter full-round tunnel arch wall is characterized in that the template translation oil cylinder (21) is arranged at the top of the portal cross beam (31), one end of the template translation oil cylinder is connected with double lug plates of the template translation oil cylinder (21) on the portal cross beam (31), and the other end of the template translation oil cylinder is connected with a pre-welded bracket longitudinal beam double lug plate (411) on the left bracket longitudinal beam (41).
9. The lining trolley for the small-diameter full-round tunnel arch wall construction according to claim 1, wherein a gap is reserved at the position of the connection double lug plates of the trolley connection mechanism (6), and after the connection single lug plates are provided with the fixing pin shafts, the adjacent trolleys are fixed in a longitudinally hinged mode along the tunnel.
10. A lining trolley for use in the construction of a small diameter full round tunnel arch according to claim 1,
when the lining trolley is put into a single set for tunnel secondary lining construction, an end mold (14) plugging end head is installed at the inner end of a tunnel close to the trolley, an outer lapping template (131) is installed at the end close to a tunnel opening to lap a formed two-lining structure of a former mold, and the end mold (14) is used at a deformation joint for plugging the end head;
when the lining trolley is put into a plurality of sets for secondary lining construction of a tunnel, end molds (14) are installed in odd-numbered bins to plug the ends, outer-side lapping templates (131) are installed in even-numbered bins to lap the two formed lining structures in the odd-numbered bins on two sides, and the end molds (14) are used at deformation joints to plug the ends.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021116063.0U CN212867565U (en) | 2020-06-16 | 2020-06-16 | A lining cutting platform truck that is used for full circle tunnel of minor diameter to encircle wall construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021116063.0U CN212867565U (en) | 2020-06-16 | 2020-06-16 | A lining cutting platform truck that is used for full circle tunnel of minor diameter to encircle wall construction |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914899A (en) * | 2021-10-11 | 2022-01-11 | 中国铁建重工集团股份有限公司 | Steel mould trolley |
| CN115263365A (en) * | 2022-08-04 | 2022-11-01 | 广东省水利水电第三工程局有限公司 | Flexible combination mode of intelligent trolley suitable for box culvert structure |
| CN115961973A (en) * | 2022-07-15 | 2023-04-14 | 中交一公局集团有限公司 | Tunnel lining trolley and tunnel construction method |
| CN117569845A (en) * | 2024-01-16 | 2024-02-20 | 洛阳腾誉隧道机械有限公司 | Material transportation trolley |
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2020
- 2020-06-16 CN CN202021116063.0U patent/CN212867565U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914899A (en) * | 2021-10-11 | 2022-01-11 | 中国铁建重工集团股份有限公司 | Steel mould trolley |
| CN115961973A (en) * | 2022-07-15 | 2023-04-14 | 中交一公局集团有限公司 | Tunnel lining trolley and tunnel construction method |
| CN115263365A (en) * | 2022-08-04 | 2022-11-01 | 广东省水利水电第三工程局有限公司 | Flexible combination mode of intelligent trolley suitable for box culvert structure |
| CN115263365B (en) * | 2022-08-04 | 2023-09-29 | 广东省水利水电第三工程局有限公司 | Flexible combination mode of intelligent trolley suitable for box culvert structure |
| CN117569845A (en) * | 2024-01-16 | 2024-02-20 | 洛阳腾誉隧道机械有限公司 | Material transportation trolley |
| CN117569845B (en) * | 2024-01-16 | 2024-03-29 | 洛阳腾誉隧道机械有限公司 | Material transportation trolley |
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