CN106522998A - Longitudinal positioning and connecting device for support arch frame of underground project and construction method - Google Patents
Longitudinal positioning and connecting device for support arch frame of underground project and construction method Download PDFInfo
- Publication number
- CN106522998A CN106522998A CN201611072512.4A CN201611072512A CN106522998A CN 106522998 A CN106522998 A CN 106522998A CN 201611072512 A CN201611072512 A CN 201611072512A CN 106522998 A CN106522998 A CN 106522998A
- Authority
- CN
- China
- Prior art keywords
- fixing device
- bow member
- connecting rod
- attachment means
- longitudinal register
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/28—Longitudinal struts, i.e. longitudinal connections between adjoining arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
Abstract
The invention discloses a longitudinal positioning and connecting device for a support arch frame of an underground project and a construction method. The longitudinal positioning and connecting device comprises a connecting rod, a first fixing device and a second fixing device, wherein one end of the connecting rod is a spherical round head, and a first threaded hole is formed in the spherical round head; the other end of the connecting rod is of a swelling structure; the first fixing device is used for providing a clamping structure for clamping and fixing the swelling structure, and the inner diameter of the clamping structure is smaller than the outer diameter of the swelling structure; and the second fixing device is of a hollow structure formed by surrounding of a shell, the end part of the hollow structure is opened, a second threaded hole matched with the first threaded hole is formed in the shell, and the diameter of the spherical round head is larger than the inner diameter of the end part of the hollow structure and smaller than the inner diameter of a main body part of the hollow structure. The longitudinal positioning and connecting device has the beneficial effects that the positioning is convenient and flexible, and the construction period is shortened. By utilizing the device, the longitudinal connection and accurate positioning of the support arch frame can be realized by only moving the arc frame, aligning the arc frame and inserting the arc frame into the first fixing device, so that the construction time is greatly saved, and the construction safety is improved.
Description
Technical field
The present invention relates to a kind of underground engineering support bow member longitudinal register attachment means and construction method.
Background technology
With the continuous development of China's infrastructure construction, the construction of underground engineering is increasingly paid attention to.With construction
The fast development of scale and speed, the speed of application and working security of underground engineering preliminary bracing have obtained extensive concern,
Do mechanization operation for this bow member becomes the guardian technique of urgent need to resolve.Three are adopted the longitudinally connected mode of traditional bow member more
Point laying off, measures setting-out by total powerstation, determines elevation and the peace of tunnel arch to tunnel cross-section vault, both sides arch springing
Holding position, then carries out bow member by human weld's connection reinforcing bar and fixes.Although in engineering practice in recent years, people are directed to
The longitudinally mounted locating connector of underground engineering bow member has done many work, but as condition is limited, currently without one kind side
Method can efficiently and effectively solve bow member quick positioning question.
Traditional underground engineering support bow member locating mounting method is primarily present following shortcoming：
(1) increase working procedure, accuracy in measurement is low.The bow member of each circulation is installed to be both needed to carry out a tunnel measure and is put
Sample, increased construction period, and field measurement is limited to the factors such as last time measurement and site environment, and certainty of measurement is difficult to protect
Card；
(2) speed of application is slow, poor stability.When bow member is longitudinally connected, a large amount of workmans are needed to carry out Site Welding, construction speed
Degree is slow, and efficiency is low, and when incomplete support space is constructed, there is certain unsafe factor.
(3) restricted application.Existing bow member positioning connection is difficult to coordinate the mechanization scene of bow member, bow member top
After positioner completes positioning, lower coupling pole often deviates predetermined installation site, it is difficult to realize that bow member is positioned.
The content of the invention
The present invention is in order to solve the above problems, it is proposed that a kind of underground engineering support bow member longitudinal register attachment means and apply
Work method, during underground engineering support arch construction, it is determined that behind upper Pin bow members position, using the longitudinal register of the present invention
Attachment means can realize carrying out the 2nd Pin bow members quickly, be accurately positioned, with long, the precision that solves bow member positioning holding time
The problems such as not high and personnel waste.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of underground engineering support bow member longitudinal register attachment means, it is solid including connecting rod, the first fixing device and second
Determine device, wherein, one end of the connecting rod is spherical round end, is provided with the first screwed hole on spherical round end；The other end is swollen
Big structure；
First fixing device is provided for the snap-in structure for expanding structure that is fixed, and the internal diameter of snap-in structure is less than
Expand the external diameter of structure；
Second fixing device is the open-ended hollow structure surrounded by housing, the structure integrated symmetric dimidiation,
And in a wherein half shell, it is provided with the second screwed hole coordinated with the first screwed hole on spherical round end, the diameter of spherical round end
More than the internal diameter of hollow structure end, and less than the internal diameter of hollow structure main part；
During use, first fixing device and the second fixing device of multigroup longitudinal register attachment means are welded on and are installed
On bow member and bow member to be installed, and the two ends of connecting rod are fastened in the first fixing device and the second fixing device respectively, are adjusted
Bolt is screwed in the first screwed hole and the second screwed hole by the position of the good bow member to be installed of section, by connecting rod and bow member to be installed it
Between be fixed, realize the positioning of bow member to be installed.
For expanding structure, the as end diameter of connecting rod is more than its main diameter for one end of connecting rod.When the first fixation
The internal diameter of the snap-in structure of device expands structure and is fastened in snap-in structure less than when expanding the external diameter of structure, it is possible to achieve living
Dynamic connection, and can be under extraneous active force, it is ensured that the stability of connection.
Spherical round end, be finger ends be spherical structure, spherical structure or the part including spherical structure structure.By
It is equal everywhere in the diameter of spherical round end, and outer surface is relatively smooth, spherical round end can be rotated in accommodating chamber, without receiving
To the too big restriction of accommodating chamber shape.
The spherical round end of connecting rod can be fastened in the second fixing device, as spherical round end can fix dress second
Put middle rotation, it is possible to adjust the relative position of connecting rod and the second fixing device, can not only facilitate the installation of connecting rod,
Also facilitate the adjustment of the position of bow member to be installed, realize it is quick, be accurately positioned.
As the structure of expanding of connecting rod is installed with the first fixing device activity, so connecting rod can be solid relative to first
Determine device rotation；Spherical round end is fastened in the second fixing device, after adjusting the position of bow member, be rotatably connected bar, is adjusted
The relative position of spherical round end and the second fixing device, makes on the first screwed hole of spherical round end and the housing of the second fixing device
The second screwed hole it is relative, after bolt is inserted screwed hole, it is possible to realize the fixation of spherical round end and the second fixing device
Connection.
Preferably, the first fixing device and the second fixing device being welded on same bow member is co-axially mounted.
When the first fixing device and the second fixing device are co-axially mounted, as long as ground is smooth, bow member specification phase
Deng after installing, the connecting rod at same position should on the same line, and that could so realize bow member is accurately positioned peace
Dress.
Preferably, the snap-in structure is pressed from both sides for bearing.
Due to the clip position opening of bearing folder, certain elastic deformation can occur, and then allow to expand inserting for structure
Enter, after expanding structure insertion, retaining part elastic recovery will be expanded position and be blocked, prevent from expanding the disengaging at position, bearing folder is
Realization is expanded structure and provides possibility with being flexibly connected for the first fixing device.
It is further preferred that first fixing device also includes horn-like guide pipe, the miner diameter end and bearing of guide pipe
The arrival end of folder is fixedly connected.
Due to it is horn-like be undergauge structure, including miner diameter end and bigger diameter end, miner diameter end therein refers to radius less
End.As connecting rod is to need to be installed under the clamping of arch center mounting device in bearing folder, the opening of bearing folder is less, receives
It is limited to mechanically operated precision, relatively difficult to achieve connecting rod may be inserted exactly in bearing folder.Horn-like guide pipe can expand
The opening of the porch of big bearing folder, allows connecting rod relatively accurately to insert in guide pipe, in the insertion process of connecting rod
In, the inwall of guide pipe provides holding power, makes the speed expanded the harness motion that structure is pressed from both sides to bearing, improve installation of connecting rod
Degree.
Preferably, the column part at the horn-like guide pipe rear portion in first fixing device is hollow structure, hollow
Inside configuration arranges female thread, and female thread is screwed sealing of tube on bow member with the externally threaded pipe cooperation that is screwed,
Realize the fixation of the first fixing device.
Be screwed the small volume of pipe, convenient to weld, and after the completion of the sealing of tube that is screwed, then the first fixing device is led to
Cross to be threadably mounted at and be screwed on pipe, can more quickly realize the installation of the first fixing device.
Preferably, the enlargement of the connecting rod is annular projection, and the external diameter of annular projection is interior more than snap-in structure
Footpath.
It is further preferred that being additionally provided with annular groove between the annular projection and the main part of connecting rod.
Bearing folder is fastened in annular groove, prevents the axial movement of connecting rod, more accurately realizes the positioning peace of bow member
Dress.
Preferably, undergauge section is provided between the connecting rod main body and spherical round end, the connecting rod of spherical blunt end
Diameter of the diameter less than connecting rod main body.
Preferably, the hollow structure of the second fixing device is cylindrical hollow configuration.
A kind of bow member is located by connecting system, including the bow member of several connections side by side, is connected with some between adjacent bow member
Group longitudinal register attachment means, some groups of longitudinal positioning devices are distributed at the vault and haunch of adjacent bow member, and are connected to arch
Longitudinal register attachment means at frame same position are on the same line.
Preferably, the bow member includes that conventional square steel, round steel, I-steel and U-shaped steel arch-shelf and corresponding constraint are mixed
Solidifying soil bow member.
Preferably, two groups of longitudinal register attachment means are symmetrically connected with the vault of adjacent bow member, respectively connect on the haunch of both sides
It is connected to one group of longitudinal register attachment means.
The method that arch construction is carried out using above-mentioned longitudinal register attachment means, comprises the steps：
1) pipe that is screwed of the first fixing device is welded in the setting position for installing bow member, then will be with bearing
The horn-like guide pipe of folder is arranged in fixing pipe, at least respectively welds one group of first fixing device at vault and both sides haunch；
2) two parts of the second fixing device symmetrical hollow structure is wrapped the spherical round end of connecting rod, then will be included
The fixing device of spherical round end is welded on the weldering of the setting position of bow member to be installed, the second fixing device and the first fixing device
Connect position corresponding；
3) bolt is inserted in the screwed hole of the second fixing device at the vault of bow member to be installed and spherical round end, to even
It is fixed between extension bar and bow member to be installed, fastening bolt can be not inserted in the second fixing device at other positions, with side
Just scene splicing；
4) start bow member and plant equipment snatch movement bow member to be installed are installed, insert the structure of expanding of connecting rod at vault
Enter to install at the vault of bow member in the first fixing device, realize the longitudinally connected of bow member at vault；
5) using the angle of the rotation adjustment connecting rod of spherical round end, coordinating bow member to install machinery carries out remaining connecting rod
Connection, realizes that the accurate of bow member to be installed is quickly located by connecting；
Repeat the above steps complete being located by connecting for remaining bow member；As long as not affecting to install, above step is interchangeable.
Beneficial effects of the present invention are：
(1) position convenient, flexible, shortening construction period.Using the device, it is only necessary to which mobile bow member is aligned and inserts first admittedly
Determine to be capable of achieving in device bow member longitudinally connected and be accurately positioned, greatly save the engineering time, improve working security.
(2) installation accuracy is high, and the design of bulb round end allows connecting rod to rotate within the specific limits, facilitates connecting rod
Connection, improve construction precision；
(3) applied widely, the device is applied to any section, the steel arch-shelf of type, is particularly suited for mechanization installation
The site operation of bow member.
Description of the drawings
Fig. 1 is the second fixture structure schematic diagram；
Fig. 2 is the first fixture structure schematic diagram；
Fig. 3 (a) is the main view figure structure schematic representation of bearing folder；
Fig. 3 (b) is the side-looking figure structure schematic representation of bearing folder；
Fig. 4 is the structural representation of connecting rod；
Fig. 5 is the structural representation after the completion of connecting rod is assembled with the first fixing device；
Fig. 6 is the first fixing device and the second fixing device schematic view of the mounting position in bow member；
Fig. 7 is the position view of the longitudinal register attachment means in confined concrete bow member.
In figure, the 1, second fixing device；2nd, the first fixing device；3rd, bearing folder；4th, be screwed pipe；5th, spherical round end；
6th, connecting rod；7th, groove；8th, enlarged head；9th, bow member；10th, first longitudinal direction locating connector at vault；11st, second at vault
Longitudinal register attachment means；12nd, first longitudinal direction locating connector at haunch；13rd, second longitudinal direction locating connector at haunch.
Specific embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 5 and Figure 6, a kind of underground engineering support bow member locating connector, including the second fixing device 1, even
Extension bar 6, the first fixing device 2, be screwed pipe 4 and bearing folder 3.Second fixing device 1 is respectively welded with the first fixing device 2
In the both sides of 9 side of bow member, and coaxial setting.The connection of 6 afterbody of connecting rod has completed the fixed dress of the first positioning of the bow member 9 of assembly
Put 2, the second fixing device 1 of head connection assembled bow member 9, complete assembled bow member 9 and assembly complete bow member 9 it
Between positioning, fixation, so as to the quick positioning for realizing bow member 9 is assembled.
The second described fixing device 1 and the first fixing device 2 are welded on the center of 9 both sides of bow member, and both are altogether
Axle is installed, and is occurred in pairs.
As shown in figure 1, the second fixing device 1 is the hollow cylinder being welded on bow member 9, and the end of hollow circular cylinder
Head internal diameter is less than main part, and the termination at this refers to the one end of the second fixing device 1 away from bow member 9, and connecting rod 6 passes through the end
Head is attached with the second fixing device 1.Second fixing device, 1 axially symmetric dimidiation, wherein half cylinder are provided with
Screwed hole, the screwed hole are coordinated with the screwed hole on spherical round end, and bolt is screwed in both screwed holes, just can be by connecting rod
It is fixed with the relative position of the second fixing device 1.
As the effect of the second fixing device 1 is to realize the connection with spherical round end 5, so, the shape of hollow space is simultaneously
Without strict restriction, can be cylindrical, spherical, elliposoidal, and other shapes, as long as spherical round end 5 is hollow at this
Can realize freely rotating in chamber.
Due to the internal diameter of the end with diameter greater than the second fixing device 1 of spherical round end 5, and the material of bow member 9 belongs to
Rigid, it is difficult to deform upon, i.e., spherical round end 5 is only filled in the second fixing device from end and is twisted as difficulty.So, will
Second fixing device 1 is arranged to separation structure, after spherical round end 5 is positioned between two parts of the second fixing device 1, will
This two parts is welded, you can realize the connection of spherical round end 5 and the first fixing device 1.
As shown in Fig. 2 first fixing device 2 includes be screwed pipe 4 and the outside horn-like fixed guide of inside
Determine device 2, the miner diameter end of horn-like guiding fixing device 2 is hollow column structure, hollow columnar structures are internally provided with
Female thread, the pipe 4 that is screwed are provided with external screw thread, external screw thread and screw-internal thread fit, by horn-like guiding fixing device 2 and screw thread
Fixing pipe 4 connects.The one end for the pipe 4 that is screwed is welded on bow member 9, then horn-like guiding fixing device 2 is screwed in into screw thread
In fixing pipe 4, the installation of the first fixing device 2 is realized.
Horn-like guiding fixing device 2 and the installation bearing folder 3 between pipe 4 that is screwed.Structure such as Fig. 3 (a) of bearing folder 3
With Fig. 3 (b) Suo Shi, bearing folder 3 includes annular brace portion and six sections of circumferentially distributed clamping parts, leaves one between adjacent clamping part
Fixed gap, six sections of clamping parts are protruded to the same side of annular brace portion, are constituted and are similar to trumpet-shaped structure, and wherein internal diameter is larger
One end is the entrance of bearing folder 3, and the structure of expanding of connecting rod 6 is inserted from arrival end, and clamped portion's engaging is installed.
If Fig. 4 is the structural representation of connecting rod 6, spherical round end 5, connecting rod main body, 7 and of groove is from left to right followed successively by
Enlarged head 8, the external diameter of groove 7 are less than the external diameter of 6 main body of connecting rod, and the external diameter of enlarged head 8 is more than the external diameter of groove 7.Ball
For the connection with the second fixing device 1, enlarged head 8 is inserted in the bearing folder 3 of the first fixing device 2 shape round end 5, bearing folder
3 clamping part props up the inwall of groove 7, prevents connecting rod 6 from coming off from the first fixing device 2, realizes firmly connecting.
Groove 7 is annular groove, realizes the uniform force of groove inner wall.
It is provided with screwed hole on spherical round end 5, the axis of the setting direction of screwed hole generally perpendicular to connecting rod 6, second
Both screwed holes are alignd by the screwed hole in fixing device also substantially perpendicular to its axis, just can be by both relative positions
Put and be fixed.
The effect of enlarged head 8 is fastened in bearing folder 3, realizes being flexibly connected, so not having the shape of enlarged head 8
There is particular restriction, such as enlarged head 8 can be the raised, or round table-like projection of ring-type, it might even be possible to not advise for other
Then shape is expanded, for the ease of processing and Practical Project operation, preferably truncated cone-shaped termination.
What connecting rod main body was connected with spherical round end 5 is undergauge section, and in Fig. 4, the external diameter of undergauge section gradually subtracts from right to left
It is little.
The setting of the undergauge section can make the diameter of spherical round end 3 be unlikely to too big, be easy to actual constructing operation, while
Can also ensure that connecting rod 6 has enough diameters, and then ensure enough bonding strengths.
The method that arch construction is carried out using the longitudinal register attachment means, comprises the steps：
The first step, welds the pipe 4 that is screwed of the first fixing device 2 in advance, then will carry in the setting position of bow member 9
First fixing device 2 of bearing folder 3 is arranged on and is screwed on pipe 4, completes the installation of the first fixing device 2.
Second step, before bow member 9 sets up, the spherical round end 5 of connecting rod 6 be placed on the second fixing device 1 to point two parts
Between, connecting rod 6 is passed from the end of the second fixing device 1, after this two parts is merged, be welded into an entirety, the company of realization
The connection of extension bar 6 and the second fixing device 1.
The afterbody (one end relative with end) of the second fixing device 1 with connecting rod 6 is welded on bow member by the 3rd step
On 9 commitment positions (vault, haunch or arch springing), first longitudinal direction locating connector 10 at vault is symmetrically installed in vault both sides
With second longitudinal direction locating connector 11 at vault, the screwed hole of spherical round end 5 and the second fixing device 1 at the two positions
Inside be screwed into bolt to be fixed, the spherical round end 5 at other positions do not carry out bolt fix (in Fig. 7, first longitudinal direction at haunch
At locating connector 12 and haunch, the spherical round end 5 of second longitudinal direction locating connector 13 does not carry out bolt and fixes)；
4th step, installs plant equipment snatch mobile bow member 9 using bow member, controls the termination of connecting rod front end at vault
The bearing folder 3 inside previous the first fixing device of Pin bow members 2 is inserted, is realized longitudinally connected at arch-rack top.
5th step, controls the rotation of bow member connecting rod using spherical round end 5, and coordinating bow member to install machinery carries out remaining connection
Bar is located by connecting, and then realizes the longitudinal register connection of bow member；
6th step, after the completion of bow member positioning, be rotatably connected bar 6, makes screwed hole and second fixing device 1 of spherical round end 5
Screwed hole alignment, tighten bolt and be fixed, then bow member is fixed in tunnel wall.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to invention protection domain
Restriction, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not required to
Various modifications or deform still within the scope of the present invention that creative work to be paid can be made.
Claims (10)
1. a kind of underground engineering support bow member longitudinal register attachment means, it is characterised in that：Including connecting rod, the first fixing device
With the second fixing device, wherein, one end of the connecting rod is spherical round end, is provided with the first screwed hole on spherical round end；Separately
One end is to expand structure；
First fixing device is provided for the snap-in structure for expanding structure that is fixed, and the internal diameter of snap-in structure is less than and expands
The external diameter of structure；
Second fixing device is the open-ended hollow structure surrounded by housing, the structure integrated symmetric dimidiation, and its
In be provided with the second screwed hole coordinated with the first screwed hole on spherical round end in a half shell, spherical round end with diameter greater than
The internal diameter of hollow structure end, and less than the internal diameter of hollow structure main part.
2. longitudinal register attachment means according to claim 1, it is characterised in that：First be welded on same bow member is solid
Determine device and the second fixing device is co-axially mounted.
3. longitudinal register attachment means according to claim 1, it is characterised in that：The snap-in structure is pressed from both sides for bearing；
Preferably, first fixing device also includes horn-like guide pipe, the miner diameter end of guide pipe and the arrival end of bearing folder
It is fixedly connected；
Preferably, the horn-like guide pipe rear portion column part in first fixing device is hollow structure, in hollow structure
Portion arranges female thread, and female thread is screwed sealing of tube on bow member, realizes the with the externally threaded pipe cooperation that is screwed
The fixation of one fixing device.
4. longitudinal register attachment means according to claim 1, it is characterised in that：The enlargement of the connecting rod is ring
Shape is raised, and the external diameter of annular projection is more than the internal diameter of snap-in structure；
Preferably, annular groove is additionally provided between the annular projection and the main part of connecting rod.
5. longitudinal register attachment means according to claim 1, it is characterised in that：The connecting rod main body and spherical round end
Between be provided with undergauge section, the diameter of the diameter of the connecting rod of spherical blunt end less than connecting rod main body.
6. longitudinal register attachment means according to claim 1, it is characterised in that：The hollow structure of the second fixing device is
Cylindrical hollow configuration.
7. longitudinal register attachment means as claimed in claim 1, is characterized in that：The bow member includes conventional square steel, round steel, work
Word steel and U-shaped steel arch-shelf and corresponding confined concrete bow member.
8. a kind of bow member is located by connecting system, it is characterised in that：Including the bow member that several connect side by side, connect between adjacent bow member
It is connected to the arbitrary some groups of described longitudinal register attachment means of claim 1-6, some groups of longitudinal positioning devices are distributed in adjacent
At the vault and haunch of bow member, and the longitudinal register attachment means being connected at bow member same position are on the same line.
9. bow member according to claim 8 is located by connecting system, it is characterised in that：Symmetrically connect on the vault of adjacent bow member
There are two groups of longitudinal register attachment means, on the haunch of both sides, be respectively connected with one group of longitudinal register attachment means.
10. the method for carrying out arch construction using the arbitrary longitudinal register attachment means of claim 1-6, it is characterised in that：
Comprise the steps：
1) pipe that is screwed of the first fixing device is welded in the setting position for installing bow member, then by with bearing folder
Horn-like guide pipe is arranged in fixing pipe, at least respectively welds one group of first fixing device at vault and both sides haunch；
2) two parts of the second fixing device symmetrical hollow structure is wrapped the spherical round end of connecting rod, then will be comprising spherical
The fixing device of round end is welded on the welding position of the setting position of bow member to be installed, the second fixing device and the first fixing device
Put corresponding；
3) bolt is inserted in the screwed hole of the second fixing device at the vault of bow member to be installed and spherical round end, to connecting rod
It is fixed between bow member to be installed, in the second fixing device at other positions, fastening bolt can be not inserted into, it is existing to facilitate
Field splicing；
4) start bow member and plant equipment snatch movement bow member to be installed are installed, the structure of expanding of connecting rod at vault is inserted
Install at the vault of bow member in the first fixing device, realize the longitudinally connected of bow member at vault；
5) using the angle of the rotation adjustment connecting rod of spherical round end, coordinating bow member to install machinery carries out the company of remaining connecting rod
Connect, realize that the accurate of bow member to be installed is quickly located by connecting；
Repeat the above steps complete being located by connecting for remaining bow member；As long as not affecting to install, above step is interchangeable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072512.4A CN106522998B (en) | 2016-11-28 | 2016-11-28 | Longitudinal positioning and connecting device for underground engineering support arch centering and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072512.4A CN106522998B (en) | 2016-11-28 | 2016-11-28 | Longitudinal positioning and connecting device for underground engineering support arch centering and construction method |
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| CN106522998A true CN106522998A (en) | 2017-03-22 |
| CN106522998B CN106522998B (en) | 2019-12-24 |
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| CN107322287A (en) * | 2017-08-11 | 2017-11-07 | 成都领专科技有限责任公司 | A kind of guiding part |
| CN107905261A (en) * | 2017-12-08 | 2018-04-13 | 山东大学 | Underground engineering assembled bow member Automatic Link Establishment and construction method |
| CN110026370A (en) * | 2019-03-28 | 2019-07-19 | 东北大学 | Solar battery board cleaning device |
| IT201800010509A1 (en) * | 2018-11-22 | 2020-05-22 | Maccaferri Off Spa | Support rib of an excavation and method for the construction of a support structure within an excavation |
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