CN108755646A - A kind of the top surface displacement monitor and method of foundation pit enclosure structure - Google Patents
A kind of the top surface displacement monitor and method of foundation pit enclosure structure Download PDFInfo
- Publication number
- CN108755646A CN108755646A CN201810409815.3A CN201810409815A CN108755646A CN 108755646 A CN108755646 A CN 108755646A CN 201810409815 A CN201810409815 A CN 201810409815A CN 108755646 A CN108755646 A CN 108755646A
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- bar code
- foundation pit
- slot
- enclosure structure
- top surface
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses the top surface displacement monitors and method of a kind of foundation pit enclosure structure, wherein, a kind of top surface displacement monitor of foundation pit enclosure structure includes observation device and is observed device, observation device, including the forced centering pier in foundation pit enclosure structure side is arranged, the top of the forced centering pier is equipped with bar code readout instrument, it is observed device, including the first slot and multiple second slots, first slot is oppositely arranged with the observation device, second slot is arranged on the top surface of foundation pit enclosure structure, second slot is between first slot and the forced centering pier, first slot, laterally folded bar code ruler is fitted in second slot.The present invention can be freely disassembled monitoring point during foundation pit construction, can prevent from destroying, and equipment manufacturing cost is cheap, is read by using bar code, can effectively avoid artificial error in reading, and rate of reading is fast, and reliability is high.
Description
Technical field
The present invention relates to Excavation Monitorings, and in particular to a kind of top surface displacement monitor of foundation pit enclosure structure and side
Method.
Background technology
In Deep foundation Pit excavation, in order to ensure its whole stability, generally can building enclosure be set in its surrounding,
But with the increase of excavation of foundation pit depth, building enclosure can be influenced to be subjected to displacement by soil pressure force difference inside and outside foundation pit.And it encloses
Protection structure is generally rigid structure, and displacement is more than certain limit will be damaged later, so needing to foundation pit enclosure knot
The displacement of structure top surface is monitored.
However, for the displacement monitoring of traditional foundation pit structure top surface, on the one hand, need to sit using total station survey monitoring point
Mark measures be required for aiming at monitoring point with human eye every time, and introduces parallax, causes monitoring result inaccurate, and is shone with automatic
The total powerstation of quasi- function involves great expense.On the other hand, because foundation pit periphery needs because being unearthed, often mechanical equipment walks about,
Observation point is often damaged.
In view of this, being badly in need of being improved existing foundation pit structure top surface displacement monitoring mode, monitoring accuracy, prison are improved
Degree of testing the speed, and then working efficiency is promoted, meanwhile, reduce monitoring cost.
Invention content
The technical problem to be solved by the present invention is to the monitorings present in existing foundation pit structure top surface displacement monitoring mode
The problem that process is complicated, testing result is inaccurate and monitoring cost is high.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is to provide a kind of top of foundation pit enclosure structure
Face displacement monitor, including:
Observation device, including the forced centering pier in foundation pit enclosure structure side is set, the top of the forced centering pier
Equipped with bar code readout instrument;
It is observed device, including the first slot and multiple second slots, first slot are opposite with the observation device
Setting, second slot are arranged on the top surface of foundation pit enclosure structure, and second slot is located at first slot and institute
Between stating forced centering pier, laterally folded bar code ruler is fitted in first slot, the second slot.
In the above scheme, the bar code readout instrument includes scanner, laser omnidirectional scan table and horizontal electronic level.
In the above scheme, the laterally folded bar code ruler includes holder and lateral bar code ruler, and the holder is vertically arranged,
The top of the holder is hinged by hinge assembly and the lateral bar code ruler.
In the above scheme, the hinge assembly includes a pair of of the auricle being arranged in the cradle top, the Cross slat
One end of yardstick is hinged by axis pin and the auricle.
In the above scheme, the top of the holder is equipped with for keeping the lateral bar code ruler vertical with holder holding
Horizontal adapting table.
In the above scheme, first, second slot is equipped with the locking assembly for locking the holder.
In the above scheme, the top surface of the forced centering pier is equipped with lateral turntable, and the bar code readout instrument setting exists
On the transverse direction turntable.
The present invention also provides a kind of top surface displacement monitoring methods of foundation pit enclosure structure, include the following steps:
S1, forced centering pier and the first slot, forced centering pier to base are buried in the side of foundation pit enclosure structure to be monitored
The distance of pit enclosure structural edge is more than 2 times of foundation depths, and the distance of the first slot to foundation pit enclosure structure edge is more than 2 times of bases
Cheat depth;
S2, multiple second slots are buried according to design section on the top surface of foundation pit enclosure structure to be monitored, as prison
Measuring point;
S3, laterally folded bar code ruler is inserted into the first slot, the second slot, and overturns all laterally folded bar code rulers
Lateral bar code ruler, make lateral bar code ruler towards foundation pit;
S4, lateral turntable and bar code readout instrument are disposed on forced centering pier;
Lateral bar code ruler on S5, the first slot of overturning is allowed to reversion backwards to foundation pit, at this point, being read using bar code readout instrument
It takes and observes transverse direction bar code ruler reading observation X0;
Lateral bar code ruler on S6, the first slot of overturning, is allowed to reversion towards foundation pit, overturns on one of them second slot
Lateral bar code ruler, observe the transverse direction bar code ruler using bar code readout instrument, read reference values X 1;
S7, a reference value A1, A1=X1-X0 for obtaining the monitoring point;
S8, repeat the above steps S5, S6 obtain a reference value A2, A3An of other monitoring points;
S9, all monitoring points are read successively, monitoring accumulative displacement value S, monitoring accumulative displacement value S=is calculated
Aij-Ai, wherein Aij is the jth time reading to i-th of monitoring point, and Ai is a reference value of i-th of monitoring point.
Compared with prior art, the present invention can be freely disassembled monitoring point during foundation pit construction, can prevent from destroying,
Equipment manufacturing cost is cheap, is read by using bar code, can effectively avoid artificial error in reading, and rate of reading is fast, and reliability is high.
Description of the drawings
Fig. 1 is the scheme of installation of the present invention;
Fig. 2 is the structural schematic diagram that device is observed in the present invention;
Fig. 3 is the structural schematic diagram of observation device in the present invention.
Specific implementation mode
The present invention provides the top surface displacement monitors and method of a kind of foundation pit enclosure structure, for monitoring foundation pit enclosure
The displacement of structure top surface is read in foundation pit enclosure top surface monitoring process using dismountable bar code, read it is objective it is reliable,
Precision is high, speed is fast, left-hand seat is easy, low cost.The present invention is made with specific implementation mode with reference to the accompanying drawings of the specification
It is described in detail.
As shown in Figures 1 to 3, the top surface displacement monitor of a kind of foundation pit enclosure structure provided by the invention, including observation
Device and it is observed device.Observation device includes the forced centering pier 1 being arranged in foundation pit enclosure structure side, forced centering pier 1
Top be equipped with bar code readout instrument 11.Bar code readout instrument 11 includes scanner, laser omnidirectional scan table and horizontal electronic level.
It includes the first slot 3 and multiple second slots 21 to be observed device, and the first slot 3 is oppositely arranged with observation device, and multiple second
Slot 21 is arranged on the top surface of foundation pit enclosure structure, and the second slot 21 is between the first slot 3 and forced centering pier 1, and
It is fitted with laterally folded bar code ruler 2 in one slot 3 and the second slot 21.
Laterally folded bar code ruler 2 includes holder 22 and lateral bar code ruler 27, and holder 22 is vertically arranged, and the top of holder 22 is logical
It crosses hinge assembly and lateral bar code ruler 27 is hinged.Hinge assembly includes a pair of of the auricle 24 being arranged at 22 top of holder, two ears
Piece 24 is equipped with perforative hinge hole 25, and lateral bar code ruler 2 is hinged by the axis pin 26 and auricle 24 being threaded through in hinge hole 25,
Lateral bar code ruler 2 is in arc-shaped with the hinged end of auricle 24, and lateral bar code ruler 27 can be 180 turns at the top of holder 22 as a result,
It is dynamic, namely it can turn to the both sides of holder 22.Lateral bar code ruler 27 is equipped with the bar code 28 for making bar code readout instrument 11 identify,
By identifying that bar code 28 detects displacement, thus instead of manually reading, it on the one hand can effectively avoid and mispronounce and error, on the other hand save
Having saved the time improves efficiency.In order to keep 27 holding of lateral bar code ruler horizontal, the top of holder 22 is equipped with for making lateral bar code
Ruler 27 keeps vertical horizontal adapting table 23 with holder 22.When the side of the lateral bar code ruler 27 of overturning to holder 22, level is held
It connects platform 23 to be in contact with lateral bar code ruler 27, plays the role of support and limit, lateral bar code ruler 27 is made to keep hanging down with holder 22
Directly, since holder 22 is vertically arranged, 27 holding of lateral bar code ruler can be made horizontal, convenient for the identification reading of bar code readout instrument 11, structure
Simply, easy to operation.
For the stability of reinforced support 22, the first slot 3 and the second slot 21 are equipped with the lock for locking bracket 22
Tight component, stability is good, holder 22 easy to disassemble.Preferably, the top surface of forced centering pier 1 is equipped with lateral turntable 12, bar code
Readout instrument 11 is arranged on lateral turntable 12.
Compared with the prior art, the advantages of the present invention are as follows:
(1) present invention observes lateral bar code ruler using bar code readout instrument, reads reading, error, misdescription problem is not present,
There is no artificial error in reading.
(2) in the present invention, sight and stadia reading are all to be averaged to obtain after processing using a large amount of bar code graduation images
Come, therefore weakens the influence of Staff's carving error.Most instruments have progress repeatedly to read the function being averaged, Ke Yixiao
Weak external condition influences.Unskilled operating personnel's industry can also carry out high-acruracy survey.
(3) of the invention, due to eliminating count off, the time for listening note, scene to calculate and that artificially malfunctions resurvey quantity, survey
The amount time can save 1/3 or so compared with traditional instrument.
(4) of the invention, since bar code ruler monitoring point can dismantle, monitoring site is groove, can be protected to greatest extent
Monitoring point is not damaged.
The present invention also provides a kind of top surface displacement monitoring methods of foundation pit enclosure structure, utilize a kind of above-mentioned foundation pit enclosure
The top surface displacement monitor of structure, and use lower step:
S1, forced centering pier and the first slot, forced centering pier to base are buried in the side of foundation pit enclosure structure to be monitored
The distance of pit enclosure structural edge is more than 2 times of foundation depths, and the distance of the first slot to foundation pit enclosure structure edge is more than 2 times of bases
Cheat depth;
S2, multiple second slots are buried according to design section on the top surface of foundation pit enclosure structure to be monitored, as prison
Measuring point;
S3, laterally folded bar code ruler is inserted into the first slot, the second slot, and overturns all laterally folded bar code rulers
Lateral bar code ruler, make lateral bar code ruler towards foundation pit;
S4, lateral turntable and bar code readout instrument are disposed on forced centering pier;
Lateral bar code ruler on S5, the first slot of overturning is allowed to reversion backwards to foundation pit, at this point, being read using bar code readout instrument
It takes and observes transverse direction bar code ruler reading observation X0;
Lateral bar code ruler on S6, the first slot of overturning, is allowed to reversion towards foundation pit, overturns on one of them second slot
Lateral bar code ruler, observe the transverse direction bar code ruler using bar code readout instrument, read reference values X 1;
S7, a reference value A1, A1=X1-X0 for obtaining the monitoring point;
S8, repeat the above steps S5, S6 obtain a reference value A2, A3An of other monitoring points;
S9, all monitoring points are read successively, monitoring accumulative displacement value S, monitoring accumulative displacement value S=is calculated
Aij-Ai, wherein Aij is the jth time reading to i-th of monitoring point, and Ai is a reference value of i-th of monitoring point.
For example, when to the 6th time of the 5th monitoring point reading, the accumulative displacement amount for obtaining the 5th monitoring point is:A56-A5
(A5 is a reference value of the 5th monitoring point).
Compared with prior art, the present invention can be freely disassembled monitoring point during foundation pit construction, can prevent from destroying,
Equipment manufacturing cost is cheap, is read by using bar code, can effectively avoid artificial error in reading, and rate of reading is fast, and reliability is high.
The invention is not limited in above-mentioned preferred forms, and anyone should learn that is made under the inspiration of the present invention
Structure change, the technical schemes that are same or similar to the present invention are each fallen within protection scope of the present invention.
Claims (8)
1. a kind of top surface displacement monitor of foundation pit enclosure structure, which is characterized in that including:
Observation device, including the forced centering pier in foundation pit enclosure structure side is set, the top of the forced centering pier is equipped with
Bar code readout instrument;
It is observed device, including the first slot and multiple second slots, first slot are oppositely arranged with the observation device,
Second slot is arranged on the top surface of foundation pit enclosure structure, and second slot is located at first slot and the pressure
Between centering pier, laterally folded bar code ruler is fitted in first slot, the second slot.
2. a kind of top surface displacement monitor of foundation pit enclosure structure according to claim 1, which is characterized in that the item
Code readout instrument includes scanner, laser omnidirectional scan table and horizontal electronic level.
3. a kind of top surface displacement monitor of foundation pit enclosure structure according to claim 1, which is characterized in that the cross
Include holder and lateral bar code ruler to bar code ruler is folded, the holder is vertically arranged, and passes through hinge assembly at the top of the holder
It is hinged with the lateral bar code ruler.
4. a kind of top surface displacement monitor of foundation pit enclosure structure according to claim 3, which is characterized in that the hinge
Connected components include a pair of of the auricle being arranged in the cradle top, and one end of the transverse direction bar code ruler passes through axis pin and the auricle
It is hinged.
5. a kind of top surface displacement monitor of foundation pit enclosure structure according to claim 3, which is characterized in that the branch
The top of frame is equipped with the horizontal adapting table for keeping the lateral bar code ruler vertical with holder holding.
6. a kind of top surface displacement monitor of foundation pit enclosure structure according to claim 3, which is characterized in that described
One, the second slot is equipped with the locking assembly for locking the holder.
7. a kind of top surface displacement monitor of foundation pit enclosure structure according to claim 1, which is characterized in that described strong
The top surface of centering pier processed is equipped with lateral turntable, and the bar code readout instrument setting is on the lateral turntable.
8. a kind of top surface displacement monitoring method of foundation pit enclosure structure, which is characterized in that include the following steps:
S1, it is enclosed in the embedded forced centering pier in the side of foundation pit enclosure structure to be monitored and the first slot, forced centering pier to foundation pit
The distance at protection structure edge is more than 2 times of foundation depths, and the distance of the first slot to foundation pit enclosure structure edge is more than 2 times of foundation pit depths
Degree;
S2, multiple second slots are buried according to design section on the top surface of foundation pit enclosure structure to be monitored, as monitoring point;
S3, laterally folded bar code ruler is inserted into the first slot, the second slot, and overturns the cross of all laterally folded bar code rulers
To bar code ruler, make lateral bar code ruler towards foundation pit;
S4, lateral turntable and bar code readout instrument are disposed on forced centering pier;
Lateral bar code ruler on S5, the first slot of overturning, is allowed to reversion backwards to foundation pit, is seen at this point, being read using bar code readout instrument
It surveys the transverse direction bar code ruler and reads observation X0;
Lateral bar code ruler on S6, the first slot of overturning, is allowed to reversion towards foundation pit, overturns the cross on one of them second slot
To bar code ruler, the transverse direction bar code ruler is observed using bar code readout instrument, reads reference values X 1;
S7, a reference value A1, A1=X1-X0 for obtaining the monitoring point;
S8, repeat the above steps S5, S6 obtain a reference value A2, A3AiAn of other all monitoring points;
S9, all monitoring points are read successively, monitoring accumulative displacement value S, monitoring accumulative displacement value S=Aij- is calculated
Ai, wherein Aij is the jth time reading to i-th of monitoring point, and Ai is a reference value of i-th of monitoring point.
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CN111307043A (en) * | 2020-03-24 | 2020-06-19 | 上海勃发空间信息技术有限公司 | Displacement monitoring system based on structured light |
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CN115790430A (en) * | 2022-11-22 | 2023-03-14 | 上海勃发空间信息技术有限公司 | Three-dimensional deformation detection method under high-speed dynamic condition |
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