CN108362247A - The method of foundation pit exterior-protected device top horizontal displacement monitoring - Google Patents
The method of foundation pit exterior-protected device top horizontal displacement monitoring Download PDFInfo
- Publication number
- CN108362247A CN108362247A CN201810123770.3A CN201810123770A CN108362247A CN 108362247 A CN108362247 A CN 108362247A CN 201810123770 A CN201810123770 A CN 201810123770A CN 108362247 A CN108362247 A CN 108362247A
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- CN
- China
- Prior art keywords
- guan liang
- total powerstation
- straight line
- foundation pit
- horizontal displacement
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- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
-
- 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
Abstract
The present invention relates to a kind of methods of foundation pit exterior-protected device top horizontal displacement monitoring, and on the outside of away from the excavation of foundation pit face farther out one end of Guan Liang on ground, total powerstation is set up at Guan Liang described in face；The total powerstation is adjusted, and the viewpoint of the total powerstation eyepiece is arranged on the concrete surface on the Guan Liang top；Total powerstation described in initial observation, and determine the datum mark of the total powerstation, it layouts successively from one end of the Guan Liang to the Guan Liang other end, then all points is connected, elongated straight line is formed on the Guan Liang surface；It is measured to another endpoint since an endpoint of the elongated straight line, finds out the point that deviation post is larger on the elongated straight line；Measurement result is depicted as netlist lattice, generates the displacement curve figure on Guan Liang top.The present invention can intuitively reflect the horizontal displacement degree of the Guan Liang very much, and method is simple, and time saving and energy saving.
Description
Technical field
The present invention relates to the technical fields of civil engineering, refer in particular to a kind of foundation pit exterior-protected device top horizontal displacement monitoring
Method.
Background technology
In base pit engineering, especially deep-foundation pit engineering is required for supervising the building enclosure of foundation pit during cutting the earth
It surveys, to control its deflection.The wherein top horizontal displacement of building enclosure is an important monitoring index, can be intuitive
Reflect influence of the excavation and construction to fender body.
The monitoring method of existing enclosure device top horizontal displacement, as shown in Figure 1, being typically the Guan Liang 11 monitored in needs
（Wherein Guan Liang 11 is the concrete capping beam at 12 top of enclosure device）Several monitoring points are arranged along foundation pit length direction in top
13, the position of each point according in the form of foundation pit enclosure structure and the depth of excavation of foundation pit, hole situations such as soil layer geological state into
Row setting, the coordinate of each point repetition measurement then by the initial coordinate of measurement each point, and after excavation of foundation pit, by repeatedly surveying
The variation distance of same monitoring point coordinates is calculated after amount to judge the change in displacement degree of fender post.
Above-mentioned Normal practice there is a problem that it is following, when measurement every time, it is necessary at least two personnel simultaneously into
Row operation, an operation observation instrument, another worker set up prism, set up prism staff must have it is certain
Professional standards just can ensure that the prism can be stood upright on monitoring point, to just be avoided that measurement caused by operating error
The larger problem of result error.The final result of aforesaid operations can only illustrate the horizontal displacement of each point, cannot intuitively reflect very much
The horizontal displacement degree of entire Guan Liang increases if monitoring the horizontal displacement of entire Guan Liang by way of encrypting monitoring point
Workload, it is time-consuming and laborious.
Invention content
For this purpose, technical problem to be solved by the present invention lies in overcome to monitor foundation pit enclosure structure horizontal position in the prior art
The method set is complicated, leads to time-consuming and laborious problem to a kind of foundation pit exterior-protected device that provide method simple and time saving and energy saving
The method of top horizontal displacement monitoring.
In order to solve the above technical problems, a kind of method of foundation pit exterior-protected device top horizontal displacement monitoring of the present invention, packet
Include following steps：Step S1：On the outside of away from the excavation of foundation pit face farther out one end of Guan Liang on ground, frame at Guan Liang described in face
If total powerstation；Step S2：The total powerstation is adjusted, and the viewpoint of the total powerstation eyepiece is arranged in the mixed of the Guan Liang top
On solidifying soil face；Step S3：Total powerstation described in initial observation, and determine the datum mark of the total powerstation, from one end of the Guan Liang
It layouts successively to the Guan Liang other end, then all points is connected, elongated straight line is formed on the Guan Liang surface；Step
S4：It is measured up to another endpoint since an endpoint of the elongated straight line, finds out deviation post on the elongated straight line
Larger point；Step S5：Measurement result is depicted as netlist lattice, generates the displacement curve figure on Guan Liang top.
In one embodiment of the invention, in the step S1, when setting up the total powerstation, away from the excavation of foundation pit
Face is farther out on the outside of one end of Guan Liang on ground, select intervisibility Guan Liang, not by earth excavation disturbing influence and be conducive to see
The ground of survey.
In one embodiment of the invention, in the step S2, when adjusting the total powerstation, make the mirror of the total powerstation
It is just parallel with the length direction of the Guan Liang when head vertical rotary.
In one embodiment of the invention, in the step S3, described in initial observation when total powerstation, in the total powerstation
The underface at position after the completion of erection leveling, determines the datum mark of the total powerstation so that the total powerstation is set up every time
Shi Jun makes on the datum mark and significantly marks and take safeguard measure.
In one embodiment of the invention, it after the datum mark for determining the total powerstation, locks horizontal circle and records
The scale number of degrees.
In one embodiment of the invention, in the step S3, from one end of the Guan Liang to the Guan Liang other end
The method layouted successively is：Rotate the total powerstation vertical direction camera lens, vertical rotating, according to the drop point of camera lens inner cross silk,
Point is laid since one end of the Guan Liang with tapering object, rotation vertical direction camera lens is then proceeded to, in the Guan Liang
Between layout, until by rotation of lens to the Guan Liang other end, layout in the Guan Liang other end.
In one embodiment of the invention, after the completion of layouting, all points are connected with the line of ink marker, on the Guan Liang surface
Elongated straight line is popped up, and the distance of institute's cloth point is for facilitating bullet to set the line of ink marker.
In one embodiment of the invention, it in the step S4, is measured since an endpoint of the elongated straight line
Before, it first sets up and adjusts the total powerstation, location of reading when horizontal circle being made to be adjusted to initially set up.
In one embodiment of the invention, it in the step S4, is measured since an endpoint of the elongated straight line
Method to another endpoint is：It measures since an endpoint of the elongated straight line, is shown by crosshair in eyepiece
The distance that elongated Points on Straight Line position moves left and right reflects the degree of the enclosure device top displacement, rotates vertical eyepiece, from
One end of the elongated straight line is until the other end, directly finds out the point that deviation post is larger on the elongated straight line.
In one embodiment of the invention, in the step S5, the netlist lattice are by longitudinal straight line and lateral straight line group
At wherein longitudinally spaced equal and lateral separation is equal, and longitudinal straight line represents the elongated straight line on Guan Liang top, described
Lateral straight line represents the horizontal displacement of Guan Liang.
The above technical solution of the present invention has the following advantages over the prior art：
The method of foundation pit exterior-protected device top horizontal displacement monitoring of the present invention not only reduces due to vertical prism personnel behaviour
Make deviation caused by factor, and a survey crew is only needed to can be completed, it is time saving and energy saving；Enclosure device top can directly be found out
The maximum position of portion's displacement deformation, therefore avoiding can not accurately be in the defect that maximum distortion position is layouted in conventional method；
Furthermore it can flexibly increase and decrease monitoring site according to the fine degree of monitoring so that monitoring is more in line with live actual demand；Separately
Outside, measurement result is depicted as netlist lattice, generates the displacement curve figure on Guan Liang top, due to being not necessarily to calculate, very according to measurement result
Intuitively reflect the horizontal displacement degree of the Guan Liang, therefore more convenient application.
Description of the drawings
In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines
Attached drawing, the present invention is described in further detail, wherein
Fig. 1 is the monitoring location schematic diagram of existing fender post top horizontal displacement；
Fig. 2 is the monitoring location schematic diagram that the present invention has fender post top horizontal displacement；
Fig. 3 is the method flow diagram of foundation pit exterior-protected device top horizontal displacement monitoring of the present invention；
Fig. 4 is the schematic diagram of netlist lattice of the present invention.
Specific implementation mode
As shown in Figures 2 and 3, the present embodiment provides a kind of method of foundation pit exterior-protected device top horizontal displacement monitoring, packets
Include following steps：Step S1：On the outside of away from the excavation of foundation pit face farther out one end of Guan Liang 11 on ground, Guan Liang 11 described in face
Place sets up total powerstation；Step S2：The total powerstation is adjusted, and the viewpoint of the total powerstation eyepiece is arranged and is pushed up in the Guan Liang 11
On the concrete surface at end；Step S3：Total powerstation described in initial observation, and determine the datum mark of the total powerstation, from the Guan Liang
11 one end to 11 other end of the Guan Liang is layouted successively, is then connected all points, is formed on 11 surface of the Guan Liang logical
Long straight line 14；Step S4:It measures up to another endpoint, finds out described logical since an endpoint of the elongated straight line 14
The larger point of deviation post on long straight line 14；Step S5：Measurement result is depicted as netlist lattice, the displacement for generating Guan Liang top is bent
Line chart.
The method of foundation pit exterior-protected device top horizontal displacement monitoring described in the present embodiment, in the step S1, away from described
Excavation of foundation pit face sets up total powerstation, wherein the Guan Liang farther out on the outside of one end of Guan Liang 11 on ground at Guan Liang 11 described in face
11 be the concrete capping beam at 12 top of enclosure device, and the horizontal position at 12 top of the enclosure device is monitored by the total powerstation
It sets；In the step S2, the total powerstation is adjusted, and the viewpoint of the total powerstation eyepiece is arranged on 11 top of the Guan Liang
On concrete surface, to advantageously ensure that the accuracy of measurement；In the step S3, total powerstation described in initial observation, and determine
The datum mark of the total powerstation, it is ensured that the datum mark monitored every time is identical, another from one end of the Guan Liang 11 to the Guan Liang 11
One end is layouted successively, then connects all points, elongated straight line 14 is formed on 11 surface of the Guan Liang, to be conducive to and profit
The sight monitored with the total powerstation compares；In the step S4, measured since an endpoint of the elongated straight line 14
Until another endpoint, finds out the point that deviation post is larger on the elongated straight line 14, dress is gone along with sb. to guard him due to can directly find out
It sets 12 top displacements and deforms maximum position, therefore avoid and can not accurately layout in maximum distortion position in conventional method
Defect, furthermore it is possible to which the fine degree according to monitoring flexibly increases and decreases monitoring site so that monitoring is more in line with live reality and needs
It asks；In the step S5, measurement result is depicted as netlist lattice, generates the displacement curve figure on Guan Liang top, due to being not necessarily to calculate, root
Intuitively reflect very much the horizontal displacement degree of the Guan Liang 11, therefore more convenient application according to measurement result.
In the step S1, when setting up the total powerstation, on the outside of away from the excavation of foundation pit face farther out one end of Guan Liang 11
On ground, select intervisibility Guan Liang 11, not by the disturbing influences such as earth excavation and be conducive to the ground of observation, to have
The accuracy measured conducive to guarantee.
In the step S2, when adjusting the total powerstation, when making the camera lens vertical rotary of the total powerstation just with it is described
The length direction of Guan Liang 11 is parallel, and the viewpoint of eyepiece can just fall the concrete surface on 11 top of the Guan Liang, to
Advantageously ensure that the accuracy of measurement.
In the step S3, described in initial observation when total powerstation, at the position after the completion of total powerstation sets up leveling
Underface, determine the datum mark of the total powerstation so that when the total powerstation is set up every time on the datum mark, to
It advantageously ensures that the accuracy of measurement, specifically, apparent label can be made for facilitating observation and taking safeguard measure.Really
After the datum mark of the fixed total powerstation, locks horizontal circle and record the scale number of degrees, have ensured that whole station when initial erection
The location of reading of instrument ensures the accuracy measured.The side to layout successively from one end of the Guan Liang 11 to the Guan Liang other end
Method is：Rotate the total powerstation vertical direction camera lens, vertical rotating, according to the drop point of camera lens inner cross silk, with tapering object, such as
Pen tip lays point since one end of the Guan Liang 11, then proceedes to rotation vertical direction camera lens, the cloth among the Guan Liang
Point is layouted until by rotation of lens to the Guan Liang other end in the Guan Liang other end.After the completion of layouting, by all point ink
Line connects, and facilitates observation, pops up elongated straight line 14 on 11 surface of the Guan Liang, and the distance of institute's cloth point is for facilitating bullet to set ink
Line, ink used are waterproof ink.
In the step S4, since an endpoint of the elongated straight line 14 before measurement, first sets up and adjust the whole station
Instrument, location of reading when horizontal circle being made to be adjusted to initially set up, to advantageously ensure that the accuracy of measurement.From described elongated
One endpoint of straight line 14, which starts to measure to the method for another endpoint, is：It is surveyed since an endpoint of the elongated straight line 14
Amount, the distance that point moves left and right on the elongated straight line 14 show by crosshair in eyepiece reflect the top of the enclosure device 12
The degree of portion's displacement rotates vertical eyepiece, from one end of the elongated straight line 14 up to the other end, directly finds out described elongated straight
The larger point of deviation post on line 14 deforms maximum position due to can directly find out 12 top displacement of the enclosure device
It sets, therefore avoiding can not accurately be in the defect that maximum distortion position is layouted in conventional method.
In the step S5, the netlist lattice are by longitudinal straight line and lateral rectilinear(-al), as shown in figure 4, wherein between longitudinal direction
It is equal every equal and lateral separation, and longitudinal straight line represents the elongated straight line 14 on 11 top of Guan Liang, the transverse direction straight line
Represent the horizontal displacement of Guan Liang 11.Specifically, every grid lattice of grid table can be determined according to the practical length and width dimensions of the foundation pit
The unit of length and width, such as longitudinal cell length is 1 meter, lateral cell lattice length is 1 millimeter.Since the present invention can be painted directly
The curve graph of horizontal displacement is made, without calculating, so as to get measurement result is more intuitive, more convenient application.
Obviously, the above embodiments are merely examples for clarifying the description, does not limit the embodiments.For
For those of ordinary skill in the art, other different form variations can also be made on the basis of the above description or are become
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments.And obvious variation extended from this or change
It is dynamic still within the protection scope of the invention.
Claims (10)
1. a kind of method of foundation pit exterior-protected device top horizontal displacement monitoring, which is characterized in that include the following steps：
Step S1：On the outside of away from the excavation of foundation pit face farther out one end of Guan Liang on ground, whole station is set up at Guan Liang described in face
Instrument；
Step S2：The total powerstation is adjusted, and the concrete on the Guan Liang top is arranged in the viewpoint of the total powerstation eyepiece
On face；
Step S3：Total powerstation described in initial observation, and determine the datum mark of the total powerstation, from one end of the Guan Liang to described
The Guan Liang other end is layouted successively, then connects all points, elongated straight line is formed on the Guan Liang surface；
Step S4：It measures up to another endpoint, is found out on the elongated straight line since an endpoint of the elongated straight line
The larger point of deviation post；
Step S5：Measurement result is depicted as netlist lattice, generates the displacement curve figure on Guan Liang top.
2. the method for foundation pit exterior-protected device top horizontal displacement monitoring according to claim 1, it is characterised in that：The step
In S1, when setting up the total powerstation, on the outside of away from the excavation of foundation pit face farther out one end of Guan Liang on ground, intervisibility Guan Liang is selected
, not by earth excavation disturbing influence and be conducive to observation ground.
3. the method for foundation pit exterior-protected device top horizontal displacement monitoring according to claim 1, it is characterised in that：The step
In S2, when adjusting the total powerstation, make just to put down with the length direction of the Guan Liang when camera lens vertical rotary of the total powerstation
Row.
4. the method for foundation pit exterior-protected device top horizontal displacement monitoring according to claim 1, it is characterised in that：The step
In S3, described in initial observation when total powerstation, the total powerstation set up leveling after the completion of position at underface, determine described in
The datum mark of total powerstation so that when the total powerstation is set up every time on the datum mark, make and significantly mark and take
Safeguard measure.
5. the method for foundation pit exterior-protected device top horizontal displacement monitoring according to claim 4, it is characterised in that：Described in determination
After the datum mark of total powerstation, locks horizontal circle and record the scale number of degrees.
6. the method for foundation pit exterior-protected device top horizontal displacement monitoring according to claim 1, it is characterised in that：The step
In S3, the method layouted successively from one end of the Guan Liang to the Guan Liang other end is：Rotate the total powerstation vertical direction
Camera lens, vertical rotating lay point with tapering object according to the drop point of camera lens inner cross silk since one end of the Guan Liang,
Rotation vertical direction camera lens is then proceeded to, is layouted among the Guan Liang, until by rotation of lens to the Guan Liang other end, described
The Guan Liang other end is layouted.
7. the method for foundation pit exterior-protected device top horizontal displacement monitoring according to claim 1 or 6, it is characterised in that：It layouts
After the completion, all points are connected with the line of ink marker, pops up elongated straight line on the Guan Liang surface, and the distance of institute's cloth point is for side
Just bullet sets the line of ink marker.
8. the method for foundation pit exterior-protected device top horizontal displacement monitoring according to claim 1, it is characterised in that：The step
In S4, since an endpoint of the elongated straight line before measurement, first sets up and adjust the total powerstation, horizontal circle is made to be adjusted to
Location of reading when initial erection.
9. according to the method for the foundation pit exterior-protected device top horizontal displacement monitoring of claim 1 or 8, it is characterised in that：It is described
In step S4, measured since an endpoint of the elongated straight line up to the method for another endpoint is：From described elongated straight
One endpoint of line starts to measure, and the distance that is moved left and right by the elongated Points on Straight Line position that crosshair in eyepiece is shown reflects
The degree of the enclosure device top displacement, rotates vertical eyepiece, from one end of the elongated straight line up to the other end, directly looks for
Go out the point that deviation post is larger on the elongated straight line.
10. the method for foundation pit exterior-protected device top horizontal displacement monitoring according to claim 1, it is characterised in that：The step
In rapid S5, the netlist lattice are by longitudinal straight line and lateral rectilinear(-al), wherein longitudinally spaced equal and lateral separation is equal, and
The longitudinal direction straight line represents the elongated straight line on Guan Liang top, and the transverse direction straight line represents the horizontal displacement of Guan Liang.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123770.3A CN108362247B (en) | 2018-02-07 | 2018-02-07 | Method for monitoring horizontal displacement of top of foundation pit support device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123770.3A CN108362247B (en) | 2018-02-07 | 2018-02-07 | Method for monitoring horizontal displacement of top of foundation pit support device |
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| CN108362247B CN108362247B (en) | 2020-03-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113358087A (en) * | 2021-04-22 | 2021-09-07 | 民航机场建设工程有限公司 | Total station reflection sheet type steel beam deflection measurement method |
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| Publication number | Publication date |
|---|---|
| CN108362247B (en) | 2020-03-13 |
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