CN210118141U - Large-span large-section multi-connected tunnel trolley - Google Patents

Large-span large-section multi-connected tunnel trolley Download PDF

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Publication number
CN210118141U
CN210118141U CN201920797844.1U CN201920797844U CN210118141U CN 210118141 U CN210118141 U CN 210118141U CN 201920797844 U CN201920797844 U CN 201920797844U CN 210118141 U CN210118141 U CN 210118141U
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China
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trolley
template
main
external
tunnel
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李昌生
张明龙
段正国
王银峰
史凌峰
朱春
温辉
陈柄全
台磊
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China Railway 12th Bureau Group Co Ltd
Third Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
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China Railway 12th Bureau Group Co Ltd
Third Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
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Abstract

The utility model relates to a large-span large-section multi-connected tunnel concrete pouring construction field discloses a large-span large-section multi-connected tunnel trolley, which comprises two main hole trolleys respectively positioned in a main hole and a middle trolley positioned between the two main hole trolleys, wherein the main hole trolley comprises a main hole trolley template, a main hole trolley side template, a main hole trolley template beam, a main hole trolley portal frame, a main hole trolley side wall truss type template, a main hole trolley jacking mechanism, a main hole trolley traveling system and a main hole trolley ground supporting strut, and the middle trolley comprises a middle trolley template, a middle trolley side template, a middle trolley portal frame and a middle trolley traveling system; the middle trolley side templates on two sides of the middle trolley are respectively and fixedly connected with the driving trolley side templates in the two main holes through deformed steel bars. The utility model discloses can improve the efficiency of construction, can wide application in tunnel concrete fills construction field.

Description

Large-span large-section multi-connected tunnel trolley
Technical Field
The utility model relates to a large-span large-section multi-connection tunnel concrete pouring construction field, concretely relates to large-span large-section multi-connection tunnel trolley.
Background
Big section of large-span tunnel concrete that ally oneself with fills, the lining cutting alone is usually adopted, divide and pour the construction many times, because the wholeness effect is not good, tunnel lining cutting adopts the short distance construction, generally adopt 6 to 10m, the construction needs a lot of processes to accomplish the lining cutting of an integral ring, plan at present to adopt a big section large-span many ally oneself with long distance (reach about 15 ~ 20 m) platform truck, can realize that tunnel many ally oneself with one shot forming, can hydraulic pressure drawing of patterns and arrive next station by oneself, every version of lining cutting generally has about 15 ~ 20m, realize simple and convenient construction step, shorten construction cycle, reduce the human cost, one shot forming long distance section, reduce the construction seam, improve concrete construction quality. In the construction of a large-span large-section multi-connected tunnel, aiming at a longer construction section, the construction method for respectively filling each multi-connected tunnel lining is adopted, in the long and large tunnel, a narrow-length trolley needs to produce more construction joints, the construction of the multi-connected tunnel with integral long-distance circulation cannot be completed at one time, the construction cycle operation time span is large, the investment of great labor cost is high, the integral multi-connected trolley is needed, the construction trolley with one-time circulation is prevented from being realized by multiple processes, the labor is saved, the construction process is saved, the integral quality of filling is improved, the construction time is saved, the circulation is carried out, and the purpose of saving a large amount of circulation materials is realized.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the deficiencies in the prior art, the technical problem who solves is: the utility model provides a large-span large-section multi-connected tunnel trolley to improve the efficiency of large-span large-section multi-connected tunnel concrete pouring construction.
In order to solve the technical problem, the utility model discloses a technical scheme be: a large-span large-section multi-connected tunnel trolley comprises two main-tunnel trolleys respectively located in a main tunnel and a middle trolley located between the two main-tunnel trolleys, wherein each main-tunnel trolley comprises a main-tunnel trolley template, a main-tunnel trolley side template, a main-tunnel trolley template beam, a main-tunnel trolley portal frame, a main-tunnel trolley side wall truss type template, a main-tunnel trolley jacking mechanism, a main-tunnel trolley traveling system and a main-tunnel trolley support ground supporting rod; the main-hole trolley side template is fixedly arranged on the inner side of a main-hole trolley portal frame, the main-hole trolley side wall truss type template is fixedly arranged on the outer side of the main-hole trolley portal frame and comprises a side wall template and a side wall truss, the side wall template is fixedly arranged on one side of the side wall truss, the other side of the side wall truss is connected with the main-hole trolley portal frame through a hydraulic telescopic rod, and a trolley ground supporting strut is arranged at the bottom of the side wall truss;
the middle trolley comprises a middle trolley template, a middle trolley side template, a middle trolley portal frame and a middle trolley traveling system, the middle trolley template and the middle trolley side template are respectively and fixedly arranged above and at two sides of the middle trolley portal frame, and the middle trolley traveling system is fixedly arranged below the middle trolley portal frame;
and the middle trolley side templates on two sides of the middle trolley are respectively and fixedly connected with the driving trolley side templates in the two main holes through deformed steel bars.
A large-span large-section multi-connected tunnel trolley still is in including setting up two outside trolleys in two main hole trolley outsides, outside trolley includes outside trolley template, outside trolley truss, outside trolley floorbar, outside trolley sideslip mechanism, outside trolley walk capable mechanism and outside trolley counter weight, outside trolley floorbar is fixed to be set up outside trolley walk capable mechanism top, outside trolley truss is in through outside trolley sideslip mechanism setting on the outside trolley floorbar, outside trolley template is fixed to be set up outside trolley truss inboardly, outside trolley counter weight is fixed to be set up on the outside trolley truss.
And the external trolley template is fixedly connected with the side wall template through deformed steel bars.
Compared with the prior art, the utility model following beneficial effect has: the utility model provides a large-span long distance big section ally oneself with lower problem of efficiency that exists in the tunnel construction more, can realize linking more and more whole location lining construction, can carry out long distance lining cutting, quick cycle construction, can avoid a plurality of construction joints, it has the location accurate, can walk the line automatically, the drawing of patterns is convenient, rigidity is better, can realize long distance advantage such as turnover fast many times. This platform truck can realize 5 ~ 8 individual realization operations, practices thrift about 10 ~ 20 people than single platform truck operation respectively, and the time can realize a circulation in 3 ~ 5 days, and single platform truck operation circulation is 1 ~ 3 days, accumulates that three platform truck repeated operation circulation needs 6 ~ 10 days, and about 15 ~ 30 people of input manpower. The trolley has the characteristics of definite structure, perfect functions, better stress, high pouring quality, short construction period, few operating personnel, high construction efficiency and the like, and is simple and convenient to use.
Drawings
Fig. 1 is a schematic structural view of a large-span large-section multi-connected tunnel trolley provided by an embodiment of the utility model;
fig. 2 is a partial schematic view of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a large-span large-section multi-connected tunnel trolley, including two main hole trolleys 23 that are located the main hole respectively, be located middle part trolley 24 between two main hole trolleys and set up two outside trolleys 25 in two main hole trolley outsides.
As shown in fig. 2, the main tunnel trolley comprises a main tunnel trolley template 1, a main tunnel trolley side template 21, a main tunnel trolley template cross beam 2, a main tunnel trolley portal 3, a main tunnel trolley side wall truss type template 4, a main tunnel trolley jacking mechanism 5, a main tunnel trolley traveling system 6 and a main tunnel trolley ground supporting strut 7, wherein the bottom of the main tunnel trolley portal 3 is connected with the main tunnel trolley traveling system 6 arranged on a ground track through the main tunnel trolley jacking mechanism 5, the main tunnel trolley template cross beam 2 is arranged above the main tunnel trolley portal 3, and the main tunnel trolley template 1 is arranged above the main tunnel trolley template cross beam 2; main hole platform truck side form board 21 is fixed to be set up in main hole platform truck portal 3 inboardly, main hole platform truck side wall truss-like template 4 is fixed to be set up in the main hole platform truck portal 3 outside, and it includes side wall template 18 and side wall truss 19, and side wall template 18 is fixed to be set up side wall truss 19 one side, 19 opposite sides of side wall truss are passed through hydraulic telescoping rod 20 and are connected with main hole platform truck portal 3, and the platform truck props ground vaulting pole 7 and sets up in side wall truss 19 bottom.
As shown in fig. 2, the middle trolley 24 includes a middle trolley template 15, a middle trolley side template 22, a middle trolley portal 16 and a middle trolley traveling system 17, the middle trolley template 15 and the middle trolley side template 22 are respectively and fixedly arranged above and at two sides of the middle trolley portal 16, and the middle trolley traveling system 17 is fixedly arranged below the middle trolley portal 16;
as shown in fig. 2, the external trolley 25 includes an external trolley template 8, an external trolley truss 9, an external trolley bottom beam 10, an external trolley traversing mechanism 11, an external trolley traveling mechanism 12, and an external trolley counterweight 13, the external trolley bottom beam 10 is fixedly disposed above the external trolley traveling mechanism 12, the external trolley truss 9 is disposed on the external trolley bottom beam 10 through the external trolley traversing mechanism 11, the external trolley template 8 is fixedly disposed inside the external trolley truss 9, and the external trolley counterweight 13 is fixedly disposed on the external trolley truss 9.
Specifically, as shown in fig. 2, the middle trolley-side templates 22 on both sides of the middle trolley 24 are respectively and fixedly connected with the driving trolley-side templates 21 in the two main holes through the deformed steel bars 14; and the external trolley template 8 and the side wall template 18 are fixedly connected through deformed steel 14 steel. Through the deformed steel bar that sets up between the template, can be with outer interior platform truck fixed connection, the linkage operation.
In this embodiment, the main tunnel trolley formwork 11 directly bears the concrete pressure, and is determined according to the concrete thickness, the maximum lateral pressure of the side part and the spacing between the support ribs, and needs to have a smooth finish with an integral appearance meeting the requirements of fair-faced concrete construction. The longitudinal ribs are supported below the main hole trolley template 11, the specification is determined according to the distance between the supporting transverse ribs at the lower part and the distance between the longitudinal ribs and the thickness of concrete, and the whole deflection of a large plane needs to be considered to meet the appearance requirement and the anti-cracking mandatory specification of the large plane solid concrete. The active trolley template cross beam 2 is arranged below the longitudinal rib, the material specification is determined according to the longitudinal beams at the lower part, the self distance and the concrete thickness, the material specification is mainly determined by the strength and rigidity targets, and the light high-section inertia moment material in the allowable deflection range needs to be met. The template structure is located on initiative platform truck portal 3, and the portal needs to satisfy the rigidity stability that portal shaped steel frame has under the effect of large-span large-cross section concrete gravity load. The main tunnel trolley side wall trolley truss type template 4 is of a structure that the template and the truss are combined into a whole, loads are transmitted to the ground through the ground supporting struts 7, meanwhile, the truss is used for transmitting the loads to the side portion of the portal steel frame, the loads are decomposed, the load is finely divided into the range where the portal frame 3 of the portal type driving trolley cannot radiate, the loads are transmitted to the ground, meanwhile, the truss type template is folded and taken onto the portal frame 3 of the driving trolley after lining is completed, the driving trolley portal frame 3 bears the main tunnel trolley side wall trolley truss type template 4 to walk to the next section, then the truss type template is unfolded through the hydraulic telescopic rod 20, and the function of bearing, contracting, unfolding and positioning is achieved. The jacking system 5 of the main hole trolley mainly realizes the descending and demoulding of the trolley and the positioning and fixing of the trolley, and is realized by adopting a hydraulic system with self-locking. And the main tunnel trolley traveling system 6 is used for achieving the purpose that the trolley travels to the next station, and adopts a motor reducer wheel-rail transmission system. Main hole platform truck props ground vaulting pole 7, adopts the thickening vaulting pole to transmit the concrete gravity of lateral part and partial top lining to ground, realizes effectively transmitting of load to and be connected lateral part lining and top lining as whole. The automatic control pouring distribution system is adopted in the side and top lining processes, concrete is uniformly distributed to each pouring window, uniform pouring on the same layer is achieved, layered, stepped, dense and uniform concrete spreading is achieved, and extreme conditions of holes and uneven pouring are avoided. An external trolley 24 is arranged on the outer side of the main tunnel trolley 23, so that the open cut tunnel type one-step forming of the multi-link tunnel is mainly realized, and the external trolley can be eliminated in a closed structure. The external trolley 24 comprises an external trolley truss 9 and an external trolley template 8, the templates and the truss are fixedly connected into a whole, the template and the truss are arranged on a bottom beam of the external trolley through a transverse moving mechanism 11, the transverse movement of the external trolley template 8 can be realized, the adjustment of the distance between the external trolley template 8 and a side wall template 18 is realized, the external trolley walking mechanism 12 is used for walking of the external trolley after the operation is completed, and an external trolley counterweight 13 is used for preventing side turning and increasing the stability of the external trolley. And two end parts between the inner trolley and the outer trolley are locked by finish-rolled deformed steel bars. The middle chamber adopts a middle trolley template, a middle trolley portal frame and a middle trolley traveling system. In the initial installation, the bottom wheel rail, the upright post, the cross beam, the top template and the side template are sequentially installed and used for the first time, the positioning height reaches the elevation, and the side part is adjusted by the oil cylinder to reach the design width. And the demoulding triple trolley firstly withdraws the side template, then lowers the top template and the integral rack, moves to the next station, and starts the next cycle after lapping and positioning.
For the first time of use, many allies oneself with together the location height and reach the elevation, many allies oneself with the drawing of patterns together and fix a position, and the efficiency of construction is showing and is improving, realizes long distance circulation operation. The utility model provides a large-span long distance big section ally oneself with lower problem of efficiency that exists in the tunnel construction more, can realize linking more and more whole location lining construction, can carry out long distance lining cutting, quick cycle construction, can avoid a plurality of construction joints, it has the location accurate, can walk the line automatically, the drawing of patterns is convenient, rigidity is better, can realize long distance advantage such as turnover fast many times.
This platform truck can realize 5 ~ 8 individual realization operations, practices thrift about 10 ~ 20 people than single platform truck operation respectively, and the time can realize a circulation in 3 ~ 5 days, and single platform truck operation circulation is 1 ~ 3 days, accumulates that three platform truck repeated operation circulation needs 6 ~ 10 days, and about 15 ~ 30 people of input manpower. The trolley has the characteristics of definite structure, perfect functions, better stress, high pouring quality, short construction period, few operating personnel, high construction efficiency and the like, and is simple and convenient to use.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (3)

1. A large-span large-section multi-connected tunnel trolley is characterized by comprising two main tunnel trolleys respectively positioned in a main tunnel and a middle trolley positioned between the two main tunnel trolleys, the main tunnel trolley comprises a main tunnel trolley template (1), a main tunnel trolley side template (21), a main tunnel trolley template beam (2), a main tunnel trolley portal frame (3), a main tunnel trolley side wall truss type template (4), a main tunnel trolley jacking mechanism (5), a main tunnel trolley traveling system (6) and a main tunnel trolley ground supporting strut (7), the bottom of the main tunnel trolley portal (3) is connected with a main tunnel trolley traveling system (6) arranged on a ground track through a main tunnel trolley jacking mechanism (5), the main hole trolley template beam (2) is arranged above the main hole trolley portal frame (3), the main hole trolley template (1) is arranged above the main hole trolley template cross beam (2); the main-hole trolley side template (21) is fixedly arranged on the inner side of a main-hole trolley portal frame (3), the main-hole trolley side wall truss type template (4) is fixedly arranged on the outer side of the main-hole trolley portal frame (3) and comprises a side wall template (18) and a side wall truss (19), the side wall template (18) is fixedly arranged on one side of the side wall truss (19), the other side of the side wall truss (19) is connected with the main-hole trolley portal frame (3) through a hydraulic telescopic rod (20), and a trolley support ground strut (7) is arranged at the bottom of the side wall truss (19);
the middle trolley comprises a middle trolley template (15), a middle trolley side template (22), a middle trolley door frame (16) and a middle trolley traveling system (17), the middle trolley template (15) and the middle trolley side template (22) are fixedly arranged above and at two sides of the middle trolley door frame (16) respectively, and the middle trolley traveling system (17) is fixedly arranged below the middle trolley door frame (16);
and the middle trolley side templates (22) on the two sides of the middle trolley are respectively and fixedly connected with the driving trolley side templates (21) in the two main holes through screw-thread steel (14).
2. The large-span large-section multi-connected tunnel trolley according to claim 1, further comprising two outer trolleys disposed outside the two main tunnel trolleys, the external trolley comprises an external trolley template (8), an external trolley truss (9), an external trolley bottom beam (10), an external trolley transverse moving mechanism (11), an external trolley traveling mechanism (12) and an external trolley counterweight (13), the external trolley bottom beam (10) is fixedly arranged above the external trolley travelling mechanism (12), the external trolley truss (9) is arranged on the external trolley bottom beam (10) through an external trolley transverse moving mechanism (11), the external trolley template (8) is fixedly arranged on the inner side of the external trolley truss (9), and the external trolley counter weight (13) is fixedly arranged on the external trolley truss (9).
3. A large-span large-section multi-connected tunnel trolley according to claim 2, wherein the external trolley formworks (8) are fixedly connected with the side wall formworks (18) through deformed steel bars (14).
CN201920797844.1U 2019-05-30 2019-05-30 Large-span large-section multi-connected tunnel trolley Active CN210118141U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920797844.1U CN210118141U (en) 2019-05-30 2019-05-30 Large-span large-section multi-connected tunnel trolley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920797844.1U CN210118141U (en) 2019-05-30 2019-05-30 Large-span large-section multi-connected tunnel trolley

Publications (1)

Publication Number Publication Date
CN210118141U true CN210118141U (en) 2020-02-28

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