Underground excavation trolley device suitable for M double-arch section form and OC section form

A double arch and cross-section technology, applied in the direction of cleaning methods using tools, shaft equipment, cleaning methods and appliances, etc., can solve the problems of low efficiency of secondary lining, reduce manual labor, improve construction quality, and achieve good quality Effect

Pending Publication Date: 2022-07-12
SUBWAY ENG CO LTD OF CHINA RAILWAY 16TH CONSTR BUREAU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the secondary lining construction where the two cross-sections of M double arch and OC exist in the same excavated tunnel section, the efficiency of the secondary lining in the traditional formwork bracket pouring construction is low

Method used

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  • Underground excavation trolley device suitable for M double-arch section form and OC section form
  • Underground excavation trolley device suitable for M double-arch section form and OC section form
  • Underground excavation trolley device suitable for M double-arch section form and OC section form

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like figure 1 and 3 As shown, the embodiment of the present invention described a kind of digging trolley device suitable for M double arch and OC two cross-section forms, including a door frame 1; the middle of the door frame 1 is installed with a first scissor brace 2; a plurality of steel arches 3 are installed inside the door frame 1; a plurality of longitudinal connectors 4 are installed between the steel arch 3 and the door frame 1; Rod 5; a second scissor brace 7 is installed in the middle of the door frame 1; a plurality of steel plate reinforcements 8 are arranged on the side walls of the door frame 1; between the door frame 1 and each steel plate reinforcement 8 All are connected with steel pipe top wire 9; the top of the door frame 1 is installed with a grouting port 10; the side wall of the door frame 1 is provided with a plurality of feeding and vibrating windows 101;

[0046] The use of this kind of underground excavation trolley device that can be appli...

Embodiment 2

[0062] like figure 2 As shown in the comparison example 1, another embodiment of the present invention is that a universal node 6 is installed at the joints of a plurality of the steel arches 3 .

Embodiment 3

[0064] like Figure 4-7 As shown, a positioning plate 11 is installed at the bottom of the door frame 1; a hydraulic cylinder 12 is fixedly connected to the bottom of the positioning plate 11; a pressure plate 13 is fixedly connected to the output end of the bottom of the hydraulic cylinder 12. When in use, open the hydraulic cylinder The switch of 12 makes the hydraulic cylinder 12 stand against the door frame 1, supports the door frame 1 and the frame body on the top thereof, reduces the pressure on the bottom of the frame body, and reduces the impact on the frame body 1 when the frame body maintains a position for a long time. The wheels at the bottom cause damage, squeezing and deformation problems.

[0065] A plurality of struts 21 are hingedly connected to the middle of the hydraulic cylinder 12 through torsion springs; a friction plate 22 is hinged to the bottom of each strut 21 ; an elastic sheet is fixed between the strut 21 and the middle of the hydraulic cylinder 12...

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Abstract

The invention belongs to the technical field of building construction, and particularly relates to an underground excavation trolley device suitable for M double-arch and OC section forms. A first diagonal bridging is mounted in the middle of the door-shaped frame; a plurality of steel arches are mounted in the door-shaped frame; a plurality of longitudinal connecting pieces are mounted between the steel arch frame and the door-shaped frame; by the adoption of the underground excavation trolley device suitable for the M section and the OC section, the problems that a traditional formwork support is large in construction labor force, low in construction efficiency, incapable of guaranteeing construction quality and the like are solved; the trolley device applicable to both the two section forms can avoid construction interference, reduce manual labor force and improve construction efficiency, can greatly improve lining construction quality in a tunnel, and meanwhile improves the mechanization degree of subsurface tunnel secondary lining construction. The rapid progress and good quality are realized, and greater economic benefits are brought to enterprises.

Description

technical field [0001] The invention belongs to the technical field of building construction, in particular to an underground excavation trolley device suitable for two cross-section forms of M double-arch and OC. Background technique [0002] With the rapid development of urban rail transit in my country, rail transit construction is faced with huge environmental constraints and other problems. For the complex ground environment and the interweaving of municipal facilities and pipe networks, the underground tunnel section of urban rail transit is widely used, and the secondary lining of the underground tunnel is an important part of the transformation of the stress system after the tunnel is formed. The secondary lining of the tunnel ensures the permanent stability, safety and beauty of the tunnel in operation; it is also an engineering measure as a safety reserve. [0003] A Chinese patent with the publication number of CN106223973B discloses a method, system and a drilli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10B08B1/00B08B7/02
CPCE21D11/102B08B7/02B08B1/10
Inventor 张广鹏李纯龙任志超杨剑波关超李媛
Owner SUBWAY ENG CO LTD OF CHINA RAILWAY 16TH CONSTR BUREAU
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