CN214997673U - Novel access & exit structure of civil air defense engineering - Google Patents
Novel access & exit structure of civil air defense engineering Download PDFInfo
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- CN214997673U CN214997673U CN202120166012.7U CN202120166012U CN214997673U CN 214997673 U CN214997673 U CN 214997673U CN 202120166012 U CN202120166012 U CN 202120166012U CN 214997673 U CN214997673 U CN 214997673U
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Abstract
The utility model discloses a novel access & exit structure of civil air defense engineering, include: the main tunnel comprises a first access, a second access and a main tunnel opening; the first inlet and the second inlet are positioned on an arc; a connecting channel is arranged between the first access and the second access, and the connecting channel is arc-shaped; the main hole opening is arc-shaped; and the arc between the first access and the second access is tangent to the axis of the arc of the main hole opening. The utility model provides a novel vestibule formula access & exit, two access & exits of this vestibule no longer are located a straight line, but are in a orthodrome, and its main hole passageway is tangent with the axis of entering the hole circular arc. This scheme does benefit to the vehicle and goes smoothly, reduces protection cost, and the convenience expandes in limited place, and the shock wave effectively derives outside the hole.
Description
Technical Field
The utility model relates to a civil air defense engineering technical field, specifically speaking, in particular to novel access & exit structure of civil air defense engineering.
Background
Civil air defense engineering also called civil air defense engineering refers to underground protective buildings which are independently built for guaranteeing personnel and material shelter, civil air defense command and medical rescue in wartime and basements which are built by combining ground buildings and can be used for air defense in wartime. The civil air defense engineering is an important facility for preventing enemies from attacking suddenly, effectively masking personnel and materials and preserving the war potential; the method is an engineering guarantee for adhering to town battles and supporting anti-aggression wars to victory for a long time.
The main protected object of civil air defense engineering is the conventional weapon. These weapons of destructive destruction have a variety of destructive destruction factors including fragmentation, shock waves, and the like. However, the civil air defense project cannot be completely sealed underground, and an entrance and an exit must be arranged for people, equipment and various devices to enter and exit. The protection project must protect the entrance and exit so that the shock wave cannot enter the interior of the project through the orifice to kill people and destroy equipment. For important civil air defense engineering, a vestibule type access opening is commonly used for reducing the reflection overpressure of the explosion shock wave acting on the protective door.
The T-shaped gallery type access opening commonly used in important civil air defense engineering is provided with a vertical gallery at an opening, so that an opening passage leads to the access opening of the ground from two directions on a horizontal plane. The shock wave load acting on the protective door can be smaller, so that the blockage can be prevented. The defects of large engineering quantity and difficult large equipment passage.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of the prior art, the embodiment of the utility model provides a novel access structure of civil air defense engineering. The technical scheme is as follows:
the utility model provides a novel access & exit structure of civil air defense engineering, include: the main tunnel comprises a first access, a second access and a main tunnel opening; the first inlet and the second inlet are positioned on an arc; a connecting channel is arranged between the first access and the second access, and the connecting channel is arc-shaped; the main hole opening is arc-shaped;
and the arc between the first access and the second access is tangent to the axis of the arc of the main hole opening.
Further, the radius of curvature of the connecting arc of the first inlet and the second inlet should be 100 and 250 meters.
Further, the arc angle of the connecting arc of the first inlet and the second inlet should be 100-150 degrees.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
(1) the main tunnel channel is tangent to the axis of the tunnel entering arc, so that smooth running of the vehicle is facilitated;
(2) the two entrances and exits are not in a straight line, so that the two entrances and exits can go deep into a section of surrounding rock, and the protection cost is reduced;
(3) the two inlet and outlet arc arrangements are arranged relatively to the straight line, the distance is short, the occupied area is small, and the expansion in a limited field is convenient;
(4) the two inlets and outlets are in large arc smooth connection, so that the shock wave can conveniently exit from the hole.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a novel access structure of civil air defense engineering in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The utility model provides a novel access & exit structure of civil air defense engineering, see figure 1, include: a first access 1, a second access 2 and a main hole 3; the first inlet and outlet 1 and the second inlet and outlet 2 are positioned on a circular arc; a connecting channel 4 is arranged between the first inlet and the second outlet 1 and 2, and the connecting channel 4 is arc-shaped; the main hole opening 3 is arc-shaped;
the circular arc between the first access opening 1 and the second access opening 2 is tangent to the axis of the circular arc of the main tunnel opening 3.
In this embodiment, according to the novel corridor-type passageway provided in the present embodiment, two passageways of the corridor are no longer located on a straight line, but are located on a large arc, and the mouth passage of the novel corridor is tangent to the arc of the entrance.
In fig. 1, R is a radius of curvature of the arc, and θ is an arc angle.
In this embodiment, the radius of curvature of the connecting arc between the first passageway 1 and the second passageway 2 should be 100 and 250 meters.
In this embodiment, the arc angle of the connecting arc of the first inlet/outlet 1 and the second inlet/outlet 2 should be 100-150 degrees.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
(1) the main tunnel channel is tangent to the axis of the tunnel entering arc, so that smooth running of the vehicle is facilitated;
(2) the two entrances and exits are not in a straight line, so that the two entrances and exits can go deep into a section of surrounding rock, and the protection cost is reduced;
(3) the two inlet and outlet arc arrangements are arranged relatively to the straight line, the distance is short, the occupied area is small, and the expansion in a limited field is convenient;
(4) the two inlets and outlets are in large arc smooth connection, so that the shock wave can conveniently exit from the hole.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (3)
1. The utility model provides a novel access & exit structure of civil air defense engineering which characterized in that includes: the main tunnel comprises a first access, a second access and a main tunnel opening; the first inlet and the second inlet are positioned on an arc; a connecting channel is arranged between the first access and the second access, and the connecting channel is arc-shaped; the main hole opening is arc-shaped;
and the arc between the first access and the second access is tangent to the axis of the arc of the main hole opening.
2. The novel entrance structure for civil air defense engineering as claimed in claim 1, wherein the radius of curvature of the connecting arc of the first entrance and the second entrance is 100 and 250 meters.
3. The novel entrance structure for civil air defense engineering as claimed in claim 1, wherein the arc angle of the connecting arc of the first entrance and the second entrance is 100-150 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120166012.7U CN214997673U (en) | 2021-01-21 | 2021-01-21 | Novel access & exit structure of civil air defense engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120166012.7U CN214997673U (en) | 2021-01-21 | 2021-01-21 | Novel access & exit structure of civil air defense engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214997673U true CN214997673U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120166012.7U Active CN214997673U (en) | 2021-01-21 | 2021-01-21 | Novel access & exit structure of civil air defense engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214997673U (en) |
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2021
- 2021-01-21 CN CN202120166012.7U patent/CN214997673U/en active Active
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