CN210195658U - Tunnel working face tunneling construction hole group structure - Google Patents
Tunnel working face tunneling construction hole group structure Download PDFInfo
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- CN210195658U CN210195658U CN201920993790.6U CN201920993790U CN210195658U CN 210195658 U CN210195658 U CN 210195658U CN 201920993790 U CN201920993790 U CN 201920993790U CN 210195658 U CN210195658 U CN 210195658U
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Abstract
The utility model provides a tunnel working face tunneling construction hole group structure, which comprises a first hole group, wherein the first hole group is arranged along the edge of the tunnel working face to form a first curve; the first hole group comprises a first construction hole and a second construction hole, the first construction hole is a round hole, the second construction hole is a circular ring hole, the circular ring hole at least comprises a rock core, and the first construction hole and the second construction hole are alternately tangent or intersected; the first construction hole is used for taking out the core in the second construction hole. The application provides a tunnel working face tunnelling construction punch combination structure separates through setting up first punch combination so that tunnel working face and tunnel inner wall, when adopting excavating machinery to carry out tunnel operation, can not exert an influence to the earth and rockfill structure on the tunnel inner wall, tunnel emergence collapse, condition such as fracture when having reduced tunnelling operation, have improved the security of operation, have reduced the equipment loss, have reduced the construction degree of difficulty.
Description
Technical Field
The utility model relates to a tunnel engineering field, concretely relates to tunnel face tunnelling construction punch combination structure.
Background
In recent years, with the rapid development of infrastructure construction of expressways, express ways, urban subways and the like in China, more and more projects are needed to dig tunnels, and the tunnels often pass through deep and thick soil-rock mixture areas. The existing tunnel excavation machinery such as a shield machine directly excavates the whole section of the tunnel working face, and due to the heterogeneity and the space-time variability of the soil-rock mixture region and the extreme physical property difference between the soil and the rock, when the soil-rock mixture is directly excavated and penetrated through the soil-rock mixture, the soil-rock structure of the inner wall of the tunnel is easily influenced, so that the tunnel is slightly collapsed, cracked and the like during tunneling operation, the equipment loss is large, and the construction difficulty is also large.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a tunnel face tunnelling construction punch combination structure has solved and has directly caused the influence to the soil and stone structure of tunnel inner wall when carrying out full section excavation to tunnel face at current tunnel excavating machinery easily, and then the tunnel takes place the circumstances such as slightly collapsing, fracture when leading to the tunnelling operation, and equipment loss is big, the technical problem that the construction degree of difficulty is also big.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a tunneling construction hole group structure of a tunnel working face comprises a first hole group, wherein the first hole group is arranged along the edge of the tunnel working face to form a first curve; the first hole group comprises a first construction hole and a second construction hole, the first construction hole is a round hole, the second construction hole is a circular ring hole, the circular ring hole at least comprises a rock core, the first construction hole and the second construction hole are alternately arranged, and the adjacent first construction hole and the second construction hole are tangent or intersected; the first construction hole is used for taking out the core in the second construction hole.
Optionally, the diameter of the first working hole is the same as the diameter of the second working hole.
Optionally, still be equipped with the third construction hole on the core, the third construction hole with the second construction hole is coaxial, the third construction hole is the blind hole, the third construction hole be used for with first construction hole cooperation is in order to take out in the second construction hole the core.
Optionally, the first construction hole and the second construction hole intersect, and the first construction hole forms a notch on two sides of the core, and the notch is used for taking out the core.
Optionally, still include the second punch combination, the second punch combination quilt the first punch combination surrounds, the second punch combination also by first construction hole with the alternative tangent or crossing setting of second construction hole, just the second punch combination is in form the second curve on the tunnel working face, the second curve accept in within the first curve, the second curve is used for cutting apart the region that first curve surrounded.
Optionally, at least one end of the second curve communicates with the first curve.
Optionally, there are two or more second curves, and at least two second curves intersect to form an intersection.
The utility model has the advantages that:
the utility model provides a tunnel working face tunneling construction hole group structure, which comprises a first hole group, wherein the first hole group is arranged along the edge of the tunnel working face to form a first curve; the first hole group comprises a first construction hole and a second construction hole, the first construction hole is a round hole, the second construction hole is a circular ring hole, the circular ring hole at least comprises a rock core, the first construction hole and the second construction hole are alternately arranged, and the adjacent first construction hole and the second construction hole are tangent or intersected; the first construction hole is used for taking out the core in the second construction hole. The application provides a tunnel working face tunnelling construction punch combination structure separates through setting up first punch combination so that tunnel working face and tunnel inner wall, when adopting excavating machinery to carry out tunnel operation, can not exert an influence to the earth and rockfill structure on the tunnel inner wall, tunnel emergence collapse, condition such as fracture when having reduced tunnelling operation, have improved the security of operation, have reduced the equipment loss, have reduced the construction degree of difficulty.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of a tunneling construction hole group structure of a tunnel working face;
FIG. 2 is a schematic structural diagram of another embodiment of a tunneling construction hole group structure of a tunnel working face;
FIG. 3 is a schematic view of a first construction hole intersecting a second construction hole;
FIG. 4 is a schematic structural diagram of another embodiment of a tunneling construction hole group structure of a tunnel working face;
FIG. 5 is a schematic structural diagram of another embodiment of a tunneling construction hole group structure of a tunnel working face;
reference numerals:
1-a first construction hole, 2-a second construction hole, 3-a first curve and 4-a second curve;
21-core, 22-third construction hole and 23-notch.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
Referring to fig. 1-4, the hole group structure for tunneling construction of a tunnel working surface provided by the present invention includes a first hole group, which is disposed along an edge of the tunnel working surface to form a first curve 3; the first hole group comprises a first construction hole 1 and a second construction hole 2, the first construction hole 1 is a round hole, the second construction hole 2 is a circular ring hole, the circular ring hole at least comprises a rock core 21, the first construction hole 1 and the second construction hole 2 are alternately arranged, and the adjacent first construction hole 1 and the second construction hole 2 are tangent or intersected; the first construction hole 1 is used for taking out the core 21 in the second construction hole 2. Specifically, the diameter of the first construction hole 1 is the same as that of the second construction hole 2, and after the core 21 in the second construction hole is removed, the first hole group forms a communicated annular channel to separate the working surface of the tunnel from the inner wall of the tunnel. In one embodiment, two manipulators are inserted into the first construction holes 1 on both sides of the second construction hole 2 to break the core 21, or a split rod is mounted on the manipulator to split the core 21 by a split method. Through setting up first punch combination so that tunnel working face separates with the tunnel inner wall, when adopting excavating machinery to carry out tunnel operation, can not exert an influence to the earth and rockfill structure on the tunnel inner wall, tunnel emergence collapses, the condition such as fracture when having reduced the tunnelling operation, has improved the security of operation, has reduced the equipment loss, has reduced the construction degree of difficulty.
As a further improvement to the above scheme, please refer to fig. 2, a third construction hole 22 is further disposed on the core 21, the third construction hole 22 is coaxial with the second construction hole 2, the third construction hole 22 is a blind hole, and the third construction hole 22 is used for being matched with the first construction hole 1 to take out the core 21 in the second construction hole 2. In one embodiment, a fracturing bar is inserted into the third construction hole 22, and the fracturing bar is controlled to fracture the core 21.
As a further improvement to the above solution, please refer to fig. 3, the first construction hole 1 and the second construction hole 2 intersect, and the first construction hole 1 forms notches 23 at two sides of the core 21, and the notches 23 are used for taking out the core 21. In one embodiment, two manipulators are preferably used to grip the core 21 through the notches 23 on both sides and to break the core 21 directly by mechanical oscillation, the shape of the manipulators preferably being adapted to the shape of the notches 23.
As a further improvement to the above scheme, please refer to fig. 4, the tunnel boring machine further includes a second hole group, the second hole group is surrounded by the first hole group, the second hole group is also alternately tangent or intersected by the first construction hole 1 and the second construction hole 2, the second hole group forms a second curve 4 on the tunnel working surface, the second curve 4 is contained within the first curve 3, and the second curve 4 is used for dividing the area surrounded by the first curve 3, that is, the second curve 4 is used for dividing the tunnel working surface into a plurality of areas, so as to facilitate partition construction to remove earth and stones on the tunnel working surface. Specifically, the second curve 4 may be a straight line or an irregular curve. Preferably, at least one end of said second curve 4 communicates with said first curve 3. Preferably, there are two or more second curves 4, and at least two second curves 4 intersect to form an intersection. In one embodiment, the second curves 4 comprise a first end and a second end, the first end is communicated with the first curve 3, the second end is communicated with the first curve 3 or another one of the second curves, and the intersection point is formed if the second end of one of the second curves is communicated with another one of the second curves.
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 substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. The utility model provides a tunnel face tunnelling construction punch combination structure which characterized in that: comprising a first set of holes arranged along the edge of the tunnel face to form a first curve (3); the first hole group comprises a first construction hole (1) and a second construction hole (2), the first construction hole (1) is a round hole, the second construction hole (2) is a circular hole, at least a rock core (21) is arranged in the circular hole, the first construction hole (1) and the second construction hole (2) are alternately arranged, and the adjacent first construction hole (1) and the second construction hole (2) are tangent or intersected; the first construction hole (1) is used for taking out the rock core (21) in the second construction hole (2).
2. The hole group structure for tunneling construction of a tunnel face according to claim 1, characterized in that: the diameter of the first construction hole (1) is the same as that of the second construction hole (2).
3. The hole group structure for tunneling construction of a tunnel face according to claim 1, characterized in that: still be equipped with third construction hole (22) on rock core (21), third construction hole (22) with second construction hole (2) are coaxial, third construction hole (22) are the blind hole, third construction hole (22) be used for with first construction hole (1) cooperation is in order to take out in second construction hole (2) rock core (21).
4. The hole group structure for tunneling construction of a tunnel face according to claim 1, characterized in that: first construction hole (1) with second construction hole (2) are crossing, just first construction hole (1) is in rock core (21) both sides form breach (23), breach (23) are used for taking out rock core (21).
5. The hole group structure for tunneling construction of a tunnel face according to claim 1, characterized in that: still include the second punch combination, the second punch combination quilt the first punch combination surrounds, the second punch combination also by first construction hole (1) with second construction hole (2) are tangent or crossing setting in turn, just the second punch combination is in form second curve (4) on the tunnel working face, second curve (4) accept in within first curve (3), second curve (4) are used for cutting apart the region that first curve (3) surrounded.
6. The hole group structure for tunneling construction of a tunnel face according to claim 5, characterized in that: at least one end of the second curve (4) is communicated with the first curve (3).
7. The hole group structure for tunneling construction of a tunnel face according to claim 5, characterized in that: the number of the second curves (4) is two or more, and at least two of the second curves (4) intersect to form an intersection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920993790.6U CN210195658U (en) | 2019-06-28 | 2019-06-28 | Tunnel working face tunneling construction hole group structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920993790.6U CN210195658U (en) | 2019-06-28 | 2019-06-28 | Tunnel working face tunneling construction hole group structure |
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| CN210195658U true CN210195658U (en) | 2020-03-27 |
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| CN201920993790.6U Active CN210195658U (en) | 2019-06-28 | 2019-06-28 | Tunnel working face tunneling construction hole group structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107497A (en) * | 2021-04-14 | 2021-07-13 | 中铁工程服务有限公司 | Hard rock tunnel tunneling construction method |
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2019
- 2019-06-28 CN CN201920993790.6U patent/CN210195658U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107497A (en) * | 2021-04-14 | 2021-07-13 | 中铁工程服务有限公司 | Hard rock tunnel tunneling construction method |
| CN113107497B (en) * | 2021-04-14 | 2022-07-29 | 中铁工程服务有限公司 | Hard rock tunnel tunneling construction method |
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