Construction method for rib planting and wall protecting of tunnel arc arch
An arc arch and tunnel technology, applied in tunnels, tunnel linings, temporary shields, etc., can solve problems such as endangering the safety of construction workers, difficult to meet the requirements of design and specifications, and difficult to ensure that the planting reinforcement holes are perpendicular to the tunnel arc arch wall. , to avoid falling
Inactive Publication Date: 2015-11-04
CHINA 19TH METALLURGICAL CORP
View PDF6 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] In the construction process of tunnel arch reinforcement and retaining wall, it is difficult to ensure that the reinforcement hole is perpendicular to the arc arch wall of the tunnel by using long drill pipe drilling for the reinforcement drilling, and it is difficult to meet the requirements of design and specifications; it is difficult to use short drill pipe to drill holes vertically degree is easy to ensure, but the gravel and mud produced by drilling will fall directly from the arc wall of the tunnel
Gravel and mud will not only affect the operation of construction personnel, but also endanger the safety of construction personnel, but there is currently no good way to solve this problem
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0022] The construction method of tunnel arch reinforcement and retaining wall includes the following steps:
[0023] A, prepare protective cover 2, protective cover 2 comprises protective cover bottom plate 2-5 and some protective cover vertical plates 2-2 that are connected with protective cover bottom plate 2-5; Each protective cover vertical plate 2-2 is arranged at intervals, adjacent protection There is a dirt tank 2-6 between the cover vertical plates 2-2; the protective cover bottom plate 2-2 is provided with a cross-shaped incision 2-3 and a fixing hole 2-4, and the edge of the protective cover bottom plate 2-2 is provided with a connecting hole 2 -1;
[0024] B. Set up arc-arch scaffolding and drilling rig lifting operation platform;
[0025] C. Drill expansion bolt holes on the tunnel arch 1, pass the expansion bolts through the fi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a construction method for rib planting and wall protecting of a tunnel arc arch and relates to the technical field of tunnel construction. The construction method for rib planting and wall protecting of the tunnel arc arch can be used for preventing rock ballast and mud from falling in the rib planting and drilling process. The construction method includes the following steps that firstly, a protection cover is prepared and comprises a protection cover bottom plate and a plurality of protection cover vertical plates connected with the protection cover bottom plate; the protection cover vertical plates are arranged at intervals, and a dirt groove is formed between every two adjacent protection cover vertical plates; cross-shaped notches and fixing holes are formed in the protection cover bottom plate, and connecting holes are formed in the edges of the protection cover bottom plate; then, expansion bolt holes are punched in the tunnel arc arch, and the protection cover is fixed to the tunnel arc arch through expansion bolts; then, drill bits penetrate through the cross-shaped notches, rib planting holes are drilled in the tunnel arc arch, ribs are installed and planted in the drilled rib planting holes, and grouting is conducted; finally, the protection cover is demounted, and subsequent construction operation is conducted. According to the construction method, rock ballast and mud can be prevented from falling, the construction efficiency is improved, and the safety of construction personnel is ensured.
Description
technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a protective cover used for tunnel arch reinforcement and wall protection construction. Background technique [0002] In the construction process of tunnel arch reinforcement and retaining wall, it is difficult to ensure that the reinforcement hole is perpendicular to the arc arch wall of the tunnel by using long drill pipe drilling for the reinforcement drilling, and it is difficult to meet the requirements of design and specifications; it is difficult to use short drill pipe to drill holes vertically The accuracy is easy to ensure, but the gravel and mud produced by drilling will fall directly from the arc wall of the tunnel. Gravel and mud will not only affect the operation of construction personnel, but also endanger the safety of construction personnel. However, there is currently no good way to solve this problem. Contents of the invention [0003] The techni...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E21D19/00E21D11/15
Inventor 黄成友韩玉庆代权张鉴
Owner CHINA 19TH METALLURGICAL CORP