CN208396689U - A kind of speedy lofting mould bases suitable for tunnel perimeter eye - Google Patents
A kind of speedy lofting mould bases suitable for tunnel perimeter eye Download PDFInfo
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- CN208396689U CN208396689U CN201820751384.4U CN201820751384U CN208396689U CN 208396689 U CN208396689 U CN 208396689U CN 201820751384 U CN201820751384 U CN 201820751384U CN 208396689 U CN208396689 U CN 208396689U
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Abstract
The utility model belongs to tunnel perimeter eye setting-out ancillary technique field, specially a kind of speedy lofting mould bases suitable for tunnel perimeter eye, belfast truss including being set as planar structure, the external arc of belfast truss and the camber line of tunnel segment profile overlap, and several blasthole positioning rings are provided in external arc, low spot positioning ring is set by the blasthole positioning ring that the blasthole positioning ring of wherein one end in external arc is set as origin reference location ring and the other end, belfast truss at origin reference location ring includes vertical bar, tangent line of the axis of vertical bar perpendicular to the external arc at origin reference location ring；One end that vertical bar intersects with external arc is provided with gravity balancing point and the other end is hinged with swingle；Positioning drilling rod is provided at origin reference location ring, positioning drilling rod is parallel to tunnel axis, and the end for positioning drilling rod is hung by cord equipped with gravity plumb bob.The utility model structure, principle are simple, can quickly position borehole position, improve construction efficiency, reduce cost, guarantee construction quality.
Description
Technical field
The utility model belongs to tunnel perimeter eye setting-out auxiliary mould, specially a kind of suitable for the quick of tunnel perimeter eye
Setting-out mould bases.
Background technique
Tunnel photoface exploision is always the key link of constructing tunnel quality control, technically, smooth Surface Blasting Technology
It has been a kind of highly developed construction technology, but the smooth demolition effect in practice of construction is but often barely satisfactory.It is main former
Because being that the periphery hole setting-out time is long, the single-track railway tunnel of a standard carries out periphery hole without prism total station using Lycra and puts
Sample, if periphery hole is calculated by 50cm, arch needs 25 blastholes, ties up painting pen one hole location, one hole site with stock, puts down
Setting-out time of getting off at least needs 45 minutes or so, and if it is double track tunnel, then the time wants longer, serious tunnel construction work
Phase.There are also a kind of methods that can be shortened the setting-out time, that is, simplify surveying and locating program, in surveying and locating only to vault point and arch
Pin point carries out setting-out, and other points are then freely played by air pressure gun work, and each circulation borehole position is all variation, in drilling process
In direction also without reference to, entirely with feel, experience, periphery hole is difficult to reach that screen is parallel, and such 7 face of tunnel excavation profile is then
It is difficult to ensure smoothly, just will appear out break phenomenon, backbreak and gunite concrete is needed to backfill, owe digging and then need secondary benefit big gun, nothing
Construction workload is increased in shape, and engineering cost is caused to increase, construction delay.7 face of tunnel excavation profile of irregularity simultaneously,
The self-stable ability that country rock cannot be played well, brings some potential safety problems to construction.
Summary of the invention
Utility model aims to solve as lacking above-mentioned tunnel brought by tunnel perimeter eye setting-out auxiliary mould
The deficiency of road periphery hole setting out method provides a kind of speedy lofting mould bases suitable for tunnel perimeter eye.
The technical scheme in the invention for solving the technical problem is:
A kind of speedy lofting mould bases suitable for tunnel perimeter eye, the belfast truss including being set as planar structure are described
The external arc of belfast truss and the camber line of tunnel segment profile overlap, and the positioning of several blastholes is provided in the external arc
Ring sets the blasthole positioning ring that the blasthole positioning ring of wherein one end in external arc is set as origin reference location ring and the other end to
Low spot positioning ring, belfast truss include the vertical bar at origin reference location ring, and the axis of the vertical bar is perpendicular to tunnel excavation
The horizontal chord of circular arc where profile；One end that the vertical bar intersects with external arc is provided with gravity balancing point and the other end is hinged with
It can 90 ° of swingles rotated；Positioning drilling rod is provided at the origin reference location ring, one end of the positioning drilling rod is placed through benchmark
Positioning ring is positioned and is hung by cord equipped with gravity plumb bob on the position corresponding with the swingle of rotation to 90 ° of drilling rod.
A kind of speedy lofting mould bases suitable for tunnel perimeter eye described in the utility model use process is as follows:
Swingle in the utility model is opened in use to the angle for plane where belfast truss being in 90 °
On, in measurement and positioning, the blasthole position of the vault in tunnel is measured using suitable instrument first, then using air pressure gun at this
Shallow eye is bored at place, and the head end for positioning drilling rod is inserted at the shallow eye, and to guarantee that the axis for positioning drilling rod is parallel to the axis in tunnel
It (being located at the tail end for positioning drilling rod at upper circulation heel according to the principle of one line of two o'clock), will be described in the utility model fast
The origin reference location ring of fast setting-out mould bases is set on the positioning drilling rod, and adjusting the speedy lofting mould bases makes gravity balancing point and erect
Bar is parallel, then adjusts the angle of belfast truss place plane, and the gravity plumb bob is made to intersect (gravity at this time with swingle
Balancing point is parallel with vertical bar holding), i.e., the axis of the described positioning drilling rod and the axis of the swingle are parallel, described at this time outer
Circular arc overlaps with tunnel excavation profile and plane where the belfast truss is parallel with tunnel cross-section, at this time in all blastholes
With painting sign at positioning ring, as blasthole position.When tunnel end face is larger, can quickly be put described in the utility model
Original mold frame is spliced, and the blasthole position of vault is first positioned, then by first speedy lofting mould bases described in the utility model
Origin reference location ring the vault blasthole position in tunnel is set, behind the position for harmonizing first speedy lofting mould bases, then
There is the origin reference location ring setting of the novel speedy lofting mould bases described in the utility model at first lower second this reality
Quick quadrat sampling mould bases low spot positioning ring at, and so on, until required blasthole position is all released.When do not need using
When device described in the utility model, by the swingle of the speedy lofting mould bases suitable for tunnel perimeter eye rotate to it is described
On the parallel position of plane where belfast truss, it can be convenient for carrying.
Preferably, the spacing with borehole spacing phase designed by tunnel of the two neighboring blasthole positioning ring in the external arc
Deng.
Preferably, the blasthole positioning ring is welded on the belfast truss.
The beneficial effects of the utility model are:
1) structure is simple, clear principle, easy to operate；
2) portable construction, manually can easy operation, save manpower；
3) it can guarantee that periphery hole distribution in tunnel arch is relatively uniform, and it is in place quickly to harmonize the utility model institute
It sets, saves the time；
4) under conditions of not using measuring instrument, blasthole position can be quick and precisely marked out, the construction time is saved, can have
The raising construction efficiency of effect reduces construction cost, guarantees construction quality, has certain economic benefit.
Detailed description of the invention
A kind of Fig. 1 structural schematic diagram of the speedy lofting mould bases suitable for tunnel perimeter eye described in the utility model.
A kind of Fig. 2 practical operation signal of the speedy lofting mould bases suitable for tunnel perimeter eye described in the utility model
Scheme (multiple mould bases combinations).
In figure: 1- belfast truss；1.1- external arc；1.2- vertical bar；2.1- origin reference location ring；2.2- low spot positioning ring；3-
Position drilling rod；4- gravity balancing point；5- swingle；6- gravity plumb bob；7- tunnel excavation profile.
Specific embodiment
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be practical to this
Novel technical solution is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model,
Rather than whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Obtained every other embodiment under the premise of labour, belongs to the range that the utility model is protected.
Referring to attached drawing, now a kind of speedy lofting mould bases suitable for tunnel perimeter eye provided by the utility model is said
It is bright.
A kind of speedy lofting mould bases suitable for tunnel perimeter eye, the belfast truss 1 including being set as planar structure are described
The external arc 1.1 of belfast truss 1 and the camber line of tunnel segment profile overlap, and are provided with several in the external arc 1.1
Blasthole positioning ring sets the blasthole positioning ring of wherein one end in external arc 1.1 in the big gun of origin reference location ring 2.1 and the other end
Hole positioning ring is set as low spot positioning ring 2.2, and belfast truss 1 includes the vertical bar 1.2 at origin reference location ring 2.1, described
Horizontal chord of the axis of vertical bar 1.2 perpendicular to 7 place circular arc of tunnel excavation profile；The vertical bar 1.2 intersects with external arc 1.1
One end be provided with gravity balancing point 4 and the other end be hinged with can 90 ° rotation swingles 5；It is arranged at the origin reference location ring 2.1
Have positioning drilling rod 3, one end of the positioning drilling rod 3 is placed through origin reference location ring 2.1, the positioning drilling rod 3 with rotation to 90 °
The corresponding position of swingle 5 on hung by cord equipped with gravity plumb bob 6.
Wherein, the tap water steel pipe of φ 20 is processed into belfast truss 1 by tunnel excavation profile 7, to guarantee the rigid of truss
Degree (according to tunnel cross-section size, can combine the appropriate piecemeal of truss), and tap water steel pipe is hollow structure, and can mitigate this
The weight of speedy lofting mould bases described in utility model.By design borehole spacing welding in the external arc 1.1 of the belfast truss 1
Blasthole positioning ring, positioning ring can be made of the annulus that the steel pipe of φ 50 is cut into 2cm high；The swingle 5 is arranged in vertical bar 1.2
An end, when a kind of speedy lofting mould bases suitable for tunnel perimeter eye described in the utility model when not in use, institute
The rotation of swingle 5 is stated to the angle for the 1 place plane of belfast truss being in 0 °, when one kind described in the utility model is suitable for
The speedy lofting mould bases of tunnel perimeter eye when need to use, the swingle 5 is rotated by 90 ° until with the belfast truss 1
Place plane is perpendicular.
A kind of speedy lofting mould bases suitable for tunnel perimeter eye described in the utility model use process is as follows:
Swingle 5 in the utility model is opened in use to the angle for 1 place plane of belfast truss being in 90 °
On degree, in measurement and positioning, the blasthole position of the vault in tunnel is measured using suitable instrument first, is then existed using air pressure gun
Shallow eye is bored at this, the head end for positioning drilling rod 3 is inserted into the shallow eye, and to guarantee that the axis for positioning drilling rod 3 is parallel to tunnel
Axis (is located at the tail end for positioning drilling rod 3 at upper circulation heel according to the principle of one line of two o'clock), by the utility model institute
The origin reference location ring 2.1 for the speedy lofting mould bases stated is set on the positioning drilling rod 3, and adjusting the speedy lofting mould bases makes weight
Power balancing point 4 is parallel with vertical bar 1.2, then adjusts the angle of the 1 place plane of belfast truss, makes the gravity plumb bob 6 and institute
It states swingle 5 and intersects (gravity balancing point 4 keeps parallel with vertical bar 1.2 at this time), i.e., the axis of the described positioning drilling rod 3 and the rotation
The axis of bull stick 5 is parallel, and the external arc and tunnel excavation profile 7 overlap and 1 place plane of the belfast truss at this time
It is parallel with tunnel cross-section, at this time at all blasthole positioning rings with painting sign, as blasthole position.When tunnel end face is larger
When, speedy lofting mould bases described in the utility model can be spliced, the blasthole position of vault first be positioned, then by first
The origin reference location ring 2.1 of a speedy lofting mould bases described in the utility model is arranged in the vault blasthole position in tunnel, harmonizes the
Behind the position of one speedy lofting mould bases, then lower second this reality is had to the benchmark of the novel speedy lofting mould bases
Positioning ring 2.1 is arranged at the low spot positioning ring 2.2 of first quick quadrat sampling mould bases described in the utility model, and so on,
Until required blasthole position is all released.When not needing using device described in the utility model, described tunnel will be suitable for
In the rotation to the position parallel with the 1 place plane of belfast truss of swingle 5 of the speedy lofting mould bases of periphery hole, Bian Kefang
Portable belt.
Further, as a kind of one kind of the speedy lofting mould bases suitable for tunnel perimeter eye described in the utility model
Specific embodiment, borehole spacing designed by the spacing and tunnel of the two neighboring blasthole positioning ring in the external arc 1.1
It is equal.
Further, as a kind of the another of the speedy lofting mould bases suitable for tunnel perimeter eye described in the utility model
Kind specific embodiment, the blasthole positioning ring are welded on the belfast truss 1.
Remaining structure above-mentioned combination attached drawing according to the present utility model is suitable for tunnel perimeter to one kind of the utility model
Eye speedy lofting mould bases other constitute and its operation be all to those skilled in the art it is known, here no longer in detail
Thin description.Although it is shown that the embodiments of the present invention, but those skilled in the art should understand that: not
These embodiments can be carried out with a variety of variations, modification, replacement in the case where being detached from the principles of the present invention and objective and become
Type, the scope of the utility model are limited by claim extremely equivalent replacement, without creative work improvements introduced etc.,
It should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of speedy lofting mould bases suitable for tunnel perimeter eye, it is characterised in that: the arc including being set as planar structure
Truss (1), the external arc (1.1) of the belfast truss (1) and the camber line of tunnel segment profile overlap, and the external arc
(1.1) several blasthole positioning rings are provided on, on the basis of the blasthole positioning ring of wherein one end on external arc (1.1) is arranged
The blasthole positioning ring of positioning ring (2.1) and the other end is set as low spot positioning ring (2.2), and belfast truss (1) includes positioned at base
Vertical bar (1.2) at quasi- positioning ring (2.1), the axis of the vertical bar (1.2) is perpendicular to circular arc where tunnel excavation profile (7)
Horizontal chord；One end that the vertical bar (1.2) is intersected with external arc (1.1) is provided with gravity balancing point (4) and the other end is hinged with
It can 90 ° of swingles (5) rotated；Positioning drilling rod (3) is provided at the origin reference location ring (2.1), positioning drilling rod (3)
One end is placed through origin reference location ring (2.1), is led on the position corresponding with swingle (5) of rotation to 90 ° of positioning drilling rod (3)
Cord is crossed to hang equipped with gravity plumb bob (6).
2. a kind of speedy lofting mould bases suitable for tunnel perimeter eye according to claim 1, it is characterised in that: described outer
The spacing of two neighboring blasthole positioning ring on circular arc (1.1) is equal with borehole spacing designed by tunnel.
3. a kind of speedy lofting mould bases suitable for tunnel perimeter eye according to claim 2, it is characterised in that: the big gun
Hole positioning ring is welded on the belfast truss (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820751384.4U CN208396689U (en) | 2018-05-21 | 2018-05-21 | A kind of speedy lofting mould bases suitable for tunnel perimeter eye |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820751384.4U CN208396689U (en) | 2018-05-21 | 2018-05-21 | A kind of speedy lofting mould bases suitable for tunnel perimeter eye |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208396689U true CN208396689U (en) | 2019-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820751384.4U Active CN208396689U (en) | 2018-05-21 | 2018-05-21 | A kind of speedy lofting mould bases suitable for tunnel perimeter eye |
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| CN (1) | CN208396689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411297A (en) * | 2019-07-29 | 2019-11-05 | 中铁隧道局集团有限公司 | The positioning device and method of tunnel angled cut blasthole |
| CN111827877A (en) * | 2020-09-03 | 2020-10-27 | 中铁上海工程局集团有限公司 | Drilling positioning trolley for peripheral holes |
-
2018
- 2018-05-21 CN CN201820751384.4U patent/CN208396689U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411297A (en) * | 2019-07-29 | 2019-11-05 | 中铁隧道局集团有限公司 | The positioning device and method of tunnel angled cut blasthole |
| CN111827877A (en) * | 2020-09-03 | 2020-10-27 | 中铁上海工程局集团有限公司 | Drilling positioning trolley for peripheral holes |
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