CN214091867U - Shaft structure suitable for medium and steep inclination angle weak structural plane - Google Patents
Shaft structure suitable for medium and steep inclination angle weak structural plane Download PDFInfo
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- CN214091867U CN214091867U CN202022412330.5U CN202022412330U CN214091867U CN 214091867 U CN214091867 U CN 214091867U CN 202022412330 U CN202022412330 U CN 202022412330U CN 214091867 U CN214091867 U CN 214091867U
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Abstract
The utility model discloses a shaft structure suitable for steep inclination weak structural plane in, including the weak structural plane that has certain inclination and with the crossing shaft of this weak structural plane, the shaft section is the fusiform section that is formed by a plurality of segmental arcs end to end, and this fusiform sectional major axis direction with the trend of weak structural plane is perpendicular. The utility model has the advantages of reasonable design, construction convenience has weakened the influence of well steep inclination structure in the face of shaft country rock stability, reduces the engineering and struts the volume.
Description
Technical Field
The utility model relates to a shaft construction technical field, concretely relates to shaft structure suitable for steep inclination weak structural plane in.
Background
The vertical shaft is a well-shaped pipeline with an upright hole wall, an underground cavity can be communicated with the ground surface through the well-shaped pipeline, and the shape of the cross section of the vertical shaft is mostly circular. Vertical shafts are common in large-scale engineering, such as high-pressure vertical shafts, surge shafts, outlet shafts and the like in hydroelectric engineering; a main well for lifting slag and a secondary well for transporting personnel and equipment in mine engineering; the ventilation shaft is used for ventilation in the traffic tunnel and the slag shaft is used for excavating slag material for lifting.
The conventional round vertical shaft meets a medium steep dip angle weak structural surface with poor properties in the excavation process, the stability of the surrounding rock of the vertical shaft is greatly influenced, the medium steep dip angle weak structural surface and other unfavorable structural surfaces are combined to easily form an unstable block, and the stability of the block can be ensured only by a large amount of spray anchor supporting work.
Based on the circumstances, the utility model provides a shaft structure suitable for steep inclination weak structural plane in can effectively solve above problem.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model aims to provide a shaft structure suitable for steep inclination weak structural plane in. The utility model has the advantages of reasonable design, construction convenience has weakened the influence of well steep inclination structure in the face of shaft country rock stability, reduces the engineering and struts the volume.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
the vertical shaft structure comprises a soft structural surface with a certain inclination angle and a vertical shaft intersected with the soft structural surface, wherein the vertical shaft section is a spindle-shaped section formed by connecting a plurality of arc sections end to end, and the long axis direction of the spindle-shaped section is vertical to the trend of the soft structural surface.
As an optimized technical scheme of the utility model, a plurality of segmental arcs include four circular arc sections, and each circular arc section meets the same tangent line of position sharing.
As an optimized technical scheme of the utility model, four circular arc sections two bisymmetry settings.
As an optimized technical scheme of the utility model, the inclination of weak structural plane is 30 ~ 70.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses a shaft section is fusiformis section, and this fusiformis sectional major axis direction moves towards perpendicularly with weak structural plane, has reduced the area of contact of weak structural plane owner slip direction and fusiformis shaft structure, and steep inclination structure reduces the engineering and struts the volume in the face of the influence of shaft country rock stability in the weakening.
Drawings
Fig. 1 is a schematic top view of the present invention;
fig. 2 is a schematic side sectional structure of the present invention.
Reference numerals: 1. a soft structural surface; 2. two intersecting great circles; 3. two inscribed small circles; 4. a shaft; 5. the intersection point of the two circles; 6. and (4) the earth surface.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
As shown in fig. 1 and 2, a weak structural surface 1 develops at the part where the shaft is to be built, the inclination angle of the weak structural surface 1 is 45 degrees, the direction of the shaft 4 is to be built, one end of the weak structural surface 1 extends to the ground surface 6, and the other end of the weak structural surface intersects with the shaft 4.
Specifically, the cross section of the vertical shaft 4 is a spindle-shaped cross section formed by connecting 4 circular arc sections end to end, and the long axis direction of the spindle-shaped cross section is perpendicular to the trend of the weak structural plane 1. Wherein, the connecting parts of the arc sections share the same tangent line and are arranged in pairwise symmetry.
The long axis direction of the spindle-shaped vertical shaft structure 4 is perpendicular to the trend of the weak structural surface 1, the contact area between the main sliding direction of the weak structural surface 1 and the spindle-shaped vertical shaft structure 4 is reduced, the influence of the middle steep dip angle structure on the stability of the surrounding rock of the vertical shaft is weakened, and the engineering supporting amount is reduced.
The drawing method of the four arc segments comprises the following steps:
(1) two great circles 2 with the same diameter are overlapped to form a shuttle shape with two sharp ends and a large middle part. Wherein, the extension line of the connection line of two intersection points 5 of the two intersected great circles 2 is vertical to the trend of the weak structural plane 1.
(2) Two internally tangent small circles 3 with the same diameter are manufactured at the upper end and the lower end in the overlapping range of the large circle 2;
(3) four tangent points of the large circle 2 and the small circle 3 are taken as connecting points, and four sections of circular arcs of the large circle 2 and the small circle 3 are connected to form a spindle-shaped section.
Further, the scale, the property and the inclination angle of the weak structural plane 1 can be adjusted according to actual conditions.
The diameter and the overlapping range of the two intersected great circles 2 can be adjusted according to actual conditions.
The diameters of the two inscribed small circles 3 can be adjusted according to actual conditions.
In addition, it should be noted that the thick line part in fig. 1 is the spindle-shaped shaft structure 4 of the present invention, and the thin line part is an auxiliary line part drawn to realize the spindle-shaped structure.
According to the utility model discloses a description and attached drawing, the field technical staff makes or uses very easily the utility model discloses a shaft structure suitable for the weak structural plane of steep inclination in can produce the positive effect that the utility model discloses record.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (4)
1. The utility model provides a shaft structure suitable for weak structural plane of steep inclination which characterized in that: the vertical shaft comprises a soft structural surface with a certain inclination angle and a vertical shaft intersected with the soft structural surface, wherein the section of the vertical shaft is a spindle-shaped section formed by connecting a plurality of arc-shaped sections end to end, and the long axis direction of the spindle-shaped section is vertical to the trend of the soft structural surface.
2. Shaft structure suitable for medium steep-angle weak structural surfaces according to claim 1, characterized in that: the arc sections comprise four arc sections, and the connecting parts of the arc sections share the same tangent line.
3. Shaft structure suitable for medium steep-angle weak structural surfaces according to claim 2, characterized in that: the four arc sections are arranged in pairwise symmetry.
4. Shaft structure suitable for medium steep-angle weak structural surfaces according to claim 1, characterized in that: the inclination angle of the soft structural plane is 30-70 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022412330.5U CN214091867U (en) | 2020-10-27 | 2020-10-27 | Shaft structure suitable for medium and steep inclination angle weak structural plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022412330.5U CN214091867U (en) | 2020-10-27 | 2020-10-27 | Shaft structure suitable for medium and steep inclination angle weak structural plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214091867U true CN214091867U (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022412330.5U Active CN214091867U (en) | 2020-10-27 | 2020-10-27 | Shaft structure suitable for medium and steep inclination angle weak structural plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214091867U (en) |
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2020
- 2020-10-27 CN CN202022412330.5U patent/CN214091867U/en active Active
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