CN107270881A - A kind of efficient setting out method in tunnel body for wind inner mold surface construction control point - Google Patents
A kind of efficient setting out method in tunnel body for wind inner mold surface construction control point Download PDFInfo
- Publication number
- CN107270881A CN107270881A CN201710564429.7A CN201710564429A CN107270881A CN 107270881 A CN107270881 A CN 107270881A CN 201710564429 A CN201710564429 A CN 201710564429A CN 107270881 A CN107270881 A CN 107270881A
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- control point
- surface layer
- layer control
- wind
- tunnel body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
Abstract
The invention discloses a kind of efficient setting out method in tunnel body for wind inner mold surface construction control point, comprise the following steps：Tunnel body for wind BIM is set up with BIM technology, obtain characteristic cross-section position coordinate data；Project hole body closed-loop path central axis projection benchmark control point；Fishing line suspension wire enciphered method lays surface layer control point；The detection of surface layer control point is checked.Present invention fusion BIM BIM technologies, ten hundreds of complex space coordinates is passed through into Rational Simplification in the limited scope of operation at the construction field (site), by suspension wire encryption projection setting-out on enclosed structure, easy construction, efficiency high, solve the problem such as big, setting-out time length of profile measurement workload in tunnel body for wind.
Description
Technical field
The present invention relates to tunnel body for wind inner mold surface construction field of measuring technique, certain more particularly to a kind of type concrete tunnel body for wind gradual change is empty
Between inner mold surface construction control point setting out method.
Background technology
Certain type acoustic wind tunnel is domestic cast-in-place concrete structure+terrazzo inner mold face hole body complete first, hole wall inner surface flatness
It is required that≤3mm/2m, axis coaxle degree≤4mm.After the completion of the phosphor bodies construction of hole, survey crew is controlled by surface layer control point
The construction in wind-tunnel inner mold face, the quantity at inner mold face control point and distribution will with can meet surface layer dividing strip installation primary condition.
Because the developed area in wind-tunnel inner mold face is larger（14930㎡）, in order to ensure inner mold face precision, it is necessary to which nearly 10,000 surface layers are controlled
Point, and the space hole body of a closing is formed after the completion of main structure construction, if survey crew is according to conventional coordinate staking out method
Surface layer control point setting-out is carried out one by one, it is necessary to take the scope of operation for a long time, other specialties will be unable to construction, directly influence wind
The duration of hole engineering construction.Restricted by the human resources balance factor of project, job site can not possibly be equipped with many instruments and survey
Teams and groups are measured, to accelerate setting-out speed, while ensureing surveying setting-out precision, it is necessary to study a kind of efficient quick, reliable and stable survey
Measure control point line-putting method.
The content of the invention
It is an object of the invention to provide a kind of efficient setting out method in tunnel body for wind inner mold surface construction control point, and then it is generalized to any
Gradual change, complex space type surface construction survey unwrapping wire process, above-mentioned purpose are achieved by the following technical solution.
A kind of efficient setting out method in tunnel body for wind inner mold surface construction control point, comprises the following steps：
1）Tunnel body for wind BIM is set up with BIM technology, obtain characteristic cross-section position coordinate data：
According to characteristic cross-section is divided on the basis of the slope variation and subsiding crack of tunnel body for wind each several part, with BIM three
Dimension space coordinate system extracts each side boundary point of characteristic cross-section, middle point coordinate data, imports total powerstation and obtains characteristic cross-section point position seat
Mark data；
2）Project hole body closed-loop path central axis projection benchmark control point；
3）Suspension wire enciphered method lays surface layer control point：
Suspension wire encryption is carried out by the way of first horizontal encryption, rear longitudinal direction encryption；Believe during horizontal surface layer control points layout according to BIM
The coordinate data of model extraction is ceased, is come out the horizontal surface layer control point setting-out in characteristic cross-section with total powerstation, characteristic cross-section one
As take each side boundary point, midpoint as characteristic point and paste horizontal surface layer control point, it is big that the spacing at horizontal surface layer control point regards type face
It is small to determine（1.5m~4m）；During longitudinal surface layer control points layout, on the basis of the horizontal surface layer control point of setting-out, no more than
Encryption suspension wire is tensed between two horizontal surface layer control points in the range of 6m, suspension wire is concordant with horizontal surface layer control point absolute altitude；
Span between two crosswise joint points, the suspension wire according to 1.5m~2m spacing distance in tunnel body for wind structural plane along tension is pasted
2~3 longitudinal surface layer control points, longitudinal surface layer control point center adjusts longitudinal surface layer control point absolute altitude just to suspension wire, after stickup
Suspension wire with tension is concordant；Said process is repeated between each characteristic cross-section until whole surveying and locatings are completed.
4）The detection of surface layer control point is checked.
Further, sampling Detection is checked checks method detection vertical, horizontal surface layer control point absolute altitude using staggered cross, after
Suspension wire, which is tightened, on the basis of longitudinal surface layer control point that survey is set checks the horizontal surface layer control point absolute altitude first surveyed and set, edge or other portions
Position control point can directly be checked using steel tape.
Tunnel body for wind of the present invention is a series of symmetrical octets, asymmetric octet, shuttle table type circular hole body, Fang Dong
The closed space grading structure that the combination of the type such as body, box-like body body is constituted, tunnel body for wind closed-loop path central axis is a virtual axis.
Suspension wire of the present invention needs smaller diameter, moderate strength, sag of chain small, and suspension wire sag of chain is not in 6m length ranges
Surveying setting-out requirement can be met more than 1.0mm side.Preferably fishing line.
The beneficial effect of patent of the present invention is：
BIM BIM technologies are merged, at the construction field (site) by ten hundreds of complex space coordinates in the limited scope of operation
By Rational Simplification, by suspension wire encryption projection setting-out on enclosed structure, easy construction, efficiency high solve tunnel body for wind
The problems such as interior profile measurement workload is big, setting-out time length, it is ensured that layout point meets the harsh design and work in gradually-changed space type face
Skill requirement, and promoted development and application of the BIM technology in engineering construction.Measuring method of the present invention can reduce prior art three
/ bis- measurement workload.
Brief description of the drawings
Fig. 1 is tunnel body for wind BIM sketch of the present invention.
Fig. 2 is the anistree hole body characteristicses sectional view of tunnel body for wind of the present invention.
Fig. 3 is certain anistree hole body section suspension wire enciphered method schematic diagram of the invention.
In figure：1. tunnel body for wind stable section, 2. the first diffusers of hole body, are hole body contraction section, test section, 3. between 1 and 2
Hole body thin wall concrete section（150mm is thick）, beam, 5. virtual hole body closed-loop path central axis are returned in 4. holes in vitro；A1.
Horizontal surface layer control point, A2. longitudinal directions surface layer control point, B. suspension wires；C. tunnel body for wind structural plane, D. terrazzo inner mold face（45mm
It is thick）.
Embodiment
A kind of efficient setting out method in tunnel body for wind inner mold surface construction control point, comprises the following steps：
1）Tunnel body for wind BIM is set up with BIM technology, obtain characteristic cross-section position coordinate data：
According to characteristic cross-section is divided on the basis of the slope variation and subsiding crack of tunnel body for wind each several part, with BIM three
Dimension space coordinate system extracts each side boundary point of characteristic cross-section, middle point coordinate data, imports total powerstation and obtains characteristic cross-section point position seat
Mark data；
2）Project hole body closed-loop path central axis projection benchmark control point；
3）Suspension wire enciphered method lays surface layer control point：
Suspension wire encryption is carried out by the way of first horizontal encryption, rear longitudinal direction encryption；Believe during horizontal surface layer control points layout according to BIM
The coordinate data of model extraction is ceased, is come out the horizontal surface layer control point setting-out in characteristic cross-section with total powerstation, characteristic cross-section one
As take each side boundary point, midpoint as characteristic point and paste horizontal surface layer control point, it is big that the spacing at horizontal surface layer control point regards type face
It is small to determine（1.5m~4m）；During longitudinal surface layer control points layout, on the basis of the horizontal surface layer control point of setting-out, no more than
Encryption suspension wire is tensed between two horizontal surface layer control points in the range of 6m, suspension wire is concordant with horizontal surface layer control point absolute altitude；
Between the two crosswise joint points, with the dipstick metering of the convention amount such as steel tape away from according to 1.5m~2m spacing distance in tunnel body for wind
Suspension wire of the structural plane along tension pastes 2~3 longitudinal surface layer control points, and longitudinal surface layer control point center is pasted just to suspension wire
Adjust longitudinal direction surface layer control point absolute altitude afterwards concordant with the suspension wire tensed, reach the interpolation encryption between two horizontal surface layer control points
Purpose,
Said process is repeated between each characteristic cross-section until whole surveying and locatings are completed.
4）The detection of surface layer control point is checked：
Sampling Detection is checked checks method detection vertical, horizontal surface layer control point absolute altitude using staggered cross, and the longitudinal surface set is surveyed after
Suspension wire is tightened on the basis of layer control point and checks the horizontal surface layer control point absolute altitude first surveyed and set, and edge or other position control points can be adopted
Directly checked with steel tape.
Described tunnel body for wind is a series of symmetrical octets, asymmetric octet, shuttle table type circular hole body, Fang Dongti, box-shaped
The closed space grading structure that the combination of the type such as body body is constituted, tunnel body for wind closed-loop path central axis is a virtual axis.Suspension wire is selected
It is selected as fishing line, preferably No. 1.5 fishing lines or No. 2 fishing lines.
Embodiment 1
Below in conjunction with example, accompanying drawing, the present invention is described in further detail.As shown in Fig. 1 ~ 3,
1）Tunnel body for wind BIM is set up with BIM technology, obtain characteristic cross-section position coordinate data
Using CAD diagram paper, for each section structural plane C-shape of hole body and size, pass through the professional softwares such as SketchUp, Revit
BIM is set up, high-precision section thin-walled tunnel body for wind terrazzo inner mold face D accurate three-dimensional space coordinates are obtained；
Slope variation and subsiding crack according to tunnel body for wind each several part etc. divide measurement section, if tunnel body for wind is divided into stem portion,
Straightway or oblique line section are typically divided with 4m, 6m, and the larger region of tunnel body for wind change in shape goes out to be characterized section to change place；
Each side boundary point of characteristic cross-section, middle point coordinate data are extracted with the BIM three-dimensional coordinate system of foundation, is imported
Total powerstation obtains characteristic cross-section position coordinate data；
2）Project hole body closed-loop path central axis projection benchmark control point
Utilize the three-level benchmark control point reserved when tunnel body for wind structure base slab is constructed（Spacing 20m~30m）, thrown with total powerstation
Plane projection control level Four datum mark, the datum line for setting up closed-loop path central axis 5 on tunnel body for wind structure base slab are penetrated, as
The foundation at setting-out surface layer control point and reference；
3）Fishing line suspension wire enciphered method lays surface layer control point
Horizontal surface layer control point A1 is laid：The coordinate data extracted according to BIM information models, with total powerstation in closing tunnel body for wind
The intersection point point for measuring characteristic cross-section and closed-loop path central axis 5 is thrown on inner bottom plating by 4m~6m spacing of division, in intersection point point
Upper erection total powerstation, sights three-level axial reference control point farther out, then 90 ° of rotary apparatus, is cut feature using total powerstation
The whole setting-outs of horizontal surface layer control point A1 in face come out, and characteristic cross-section typically takes each side midpoint or boundary point to be characterized a stickup
Surface layer control point A1, characteristic cross-section transverse direction surface layer control point A1 spacing is determined regarding type face size（1.5m~4m）.
Longitudinal surface layer control point A2 is laid：Treat the horizontal surface layer control point A1 of setting-out（Three axially adjustable devices, end is
It is pointed）Cement in after tunnel body for wind structural plane C, between two horizontal surface layer control point A1 of the workmen in the range of no more than 6m
Encryption suspension wire B, suspension wire B is tensed in structural plane basic unit on the outside of the horizontal surface layer control point A1, to hang using cement nail colligation, stickfast
Line is concordant with horizontal surface layer control point A1 absolute altitudes；Between the two crosswise joint points A1, with the convention amount dipstick metering such as steel tape
Away from the suspension wire B according to 1.5m~2m spacing distance in tunnel body for wind structural plane C along tension pastes 2~3 longitudinal surface layers and controlled
Point A2, longitudinal surface layer control point A2 centers just to suspension wire B, adjust longitudinal surface layer control point A2 absolute altitudes and the suspension wire tensed after stickup
B is concordant, reaches and is repeated in said process between the purpose that interpolation is encrypted between two horizontal surface layer control point A1, each characteristic cross-section
Until whole surface layer control point A1, A2 surveying and locatings are completed.
By investigating experiment, three kinds of encryption suspension wires, respectively cotton thread, finer wire, fishing line are chosen.Tightened under 6m length outstanding
Line, cotton thread is softer, and sag of chain is 1.0-1.2mm, but is relatively large in diameter, and measurement error is big；Finer wire sag of chain is 1.2-1.4mm,
And it is inconvenient for use；2.0# fishing line diameters are small, and sag of chain is 0.8-1.0mm；It is final to determine that encryption suspension wire uses 1.5# or 2.0# fishes
Line.
4）The detection of surface layer control point is checked
It should sample and be checked after the completion of A1, A2 coordinate projection of surface layer control point（Ratio desirable 3%~5%）, detection, which is checked, preferably to exist
Longitudinal surface layer control point A2 is carried out after fixing, in same slope section section, and sampling Detection is checked checks method using staggered cross
Vertical, horizontal surface layer control point A1, A2 absolute altitude is detected, is surveyed after on the basis of the longitudinal surface layer control point A2 set and is tightened suspension wire and check elder generation
The horizontal surface layer control point A1 absolute altitudes set are surveyed, edge or other position control points can be checked using steel tape, be that subsequent construction is carried
For accurately controlling foundation.
Claims (7)
1. a kind of efficient setting out method in tunnel body for wind inner mold surface construction control point, it is characterised in that：Comprise the following steps：
1）Tunnel body for wind BIM is set up with BIM technology, obtain characteristic cross-section position coordinate data：
According to characteristic cross-section is divided on the basis of the slope variation and subsiding crack of tunnel body for wind each several part, with BIM three
Dimension space coordinate system extracts each side boundary point of characteristic cross-section, middle point coordinate data, imports total powerstation and obtains characteristic cross-section point position seat
Mark data；
2）Project hole body closed-loop path central axis projection benchmark control point；
3）Suspension wire enciphered method lays surface layer control point：
Suspension wire encryption is carried out by the way of first horizontal encryption, rear longitudinal direction encryption；Believe during horizontal surface layer control points layout according to BIM
The coordinate data of model extraction is ceased, is come out the horizontal surface layer control point setting-out in characteristic cross-section with total powerstation, and paste transverse direction
Surface layer control point, pasting the characteristic point at horizontal surface layer control point includes each side boundary point of characteristic cross-section, midpoint, horizontal surface layer control
The spacing of point regards type face size as 1.5m~4m；During longitudinal surface layer control points layout, using the horizontal surface layer control point of setting-out as
Encryption suspension wire is tensed between benchmark, two horizontal surface layer control points in the range of no more than 6m, suspension wire is controlled with horizontal surface layer
Point absolute altitude is concordant；
The span between two crosswise joint points, according to 1.5m~2m spacing distance in tunnel body for wind structural plane along the outstanding of tension
Line pastes 2~3 longitudinal surface layer control points, and longitudinal surface layer control point center adjusts longitudinal surface layer control just to suspension wire, after stickup
Point absolute altitude is concordant with the suspension wire tensed；Said process is repeated between each characteristic cross-section until whole surveying and locatings are completed；
4）The detection of surface layer control point is checked.
2. the efficient setting out method in tunnel body for wind inner mold surface construction control point according to claim 1, it is characterised in that：Step 4）
Middle sampling Detection is checked checks method detection vertical, horizontal surface layer control point absolute altitude using staggered cross, and the longitudinal surface layer set is surveyed after
Suspension wire is tightened on the basis of control point and checks the horizontal surface layer control point absolute altitude first surveyed and set, edge or other position control points use steel
Tape measure is directly checked.
3. the efficient setting out method in tunnel body for wind inner mold surface construction control point according to claim 1, it is characterised in that：The wind
Hole body is that a series of type bodies combine the closed space grading structure constituted, and tunnel body for wind closed-loop path central axis is an imaginary axis
Line.
4. the efficient setting out method in tunnel body for wind inner mold surface construction control point according to claim 3, it is characterised in that：Described one
Series type body includes symmetrical octet, asymmetric octet, shuttle table type circular hole body, Fang Dongti, box-like body.
5. the efficient setting out method in tunnel body for wind inner mold surface construction control point according to claim 1, it is characterised in that：It is described outstanding
Line suspension wire sag of chain in 6m length ranges is not more than 1.0mm.
6. the efficient setting out method in tunnel body for wind inner mold surface construction control point according to claim 1, it is characterised in that：It is described outstanding
Line is fishing line.
7. the efficient setting out method in tunnel body for wind inner mold surface construction control point according to claim 6, it is characterised in that：It is described outstanding
Line is No. 1.5 fishing lines or No. 2 fishing lines.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710564429.7A CN107270881B (en) | 2017-07-12 | 2017-07-12 | A kind of efficient setting out method in tunnel body for wind inner mold surface construction control point |
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| CN201710564429.7A CN107270881B (en) | 2017-07-12 | 2017-07-12 | A kind of efficient setting out method in tunnel body for wind inner mold surface construction control point |
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| CN107270881A true CN107270881A (en) | 2017-10-20 |
| CN107270881B CN107270881B (en) | 2019-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646159A (en) * | 2019-10-18 | 2020-01-03 | 中国建筑第八工程局有限公司 | Construction method for high-precision control and measurement of cast-in-place bare concrete wind tunnel |
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| JP2004351450A (en) * | 2003-05-28 | 2004-12-16 | Yaskawa Electric Corp | Calibration device for laser beam machining head with rotary mechanism and method for using it |
| CN103486984A (en) * | 2013-10-12 | 2014-01-01 | 中国人民解放军63926部队 | Detection method for coaxiality of inner molded surface of wind tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110646159A (en) * | 2019-10-18 | 2020-01-03 | 中国建筑第八工程局有限公司 | Construction method for high-precision control and measurement of cast-in-place bare concrete wind tunnel |
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