CN108894244A - A kind of electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method - Google Patents
A kind of electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method Download PDFInfo
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- CN108894244A CN108894244A CN201810924715.4A CN201810924715A CN108894244A CN 108894244 A CN108894244 A CN 108894244A CN 201810924715 A CN201810924715 A CN 201810924715A CN 108894244 A CN108894244 A CN 108894244A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The present invention relates to a kind of electric power pylon foundation structure integrality low strain dynamic uplink wave detecting methods, belong to the technical field of quality detection of project of transmitting and converting electricity and civil engineering.This method includes that the top surface of electric power pylon foundation structure to be measured is tapped by striking mechanism, so that the inside of electric power pylon foundation structure to be measured forms stress wave acceleration signal；It is once tapped through in journey same, obtains the stress wave acceleration signal of different height on electric power pylon foundation structure side wall to be measured, and be repeated as many times；Stress wave acceleration signal is obtained into the speed signal of stress wave by Integral Processing；The speed signal of stress wave is handled, uplink Stress wave speed curve is obtained；According to the different feature of upgoing wave rate curve, the integrality of electric power pylon foundation structure to be measured is judged, and obtains judgement conclusion, judgement conclusion includes complete, expanding, necking down fine fisssure cavity.The detection method can be carried out non-destructive testing for electric power pylon foundation structure integrality.
Description
Technical field
The present invention relates to the technical field of quality detection of project of transmitting and converting electricity and civil engineering, more particularly to a kind of transmission of electricity iron
Tower foundation structural intergrity low strain dynamic uplink wave detecting method.
Background technique
Influence of the superstructures such as power transmission line and steel tower vulnerable to horizontal loadings such as wind, horizontal loading reach iron tower foundation knot
Structure, iron tower foundation structure fatiguability under long-term horizontal loads are damaged and are cracked.And daily transmission line of electricity inspection
Can only the earth's surfaces position such as check protection cap defect, the integrity detection of electric power pylon infrastructure structure is lacked at present
Few practical method.
Low-strain dynamic measure method used by the underground structures integrity detection such as current pile foundation, have it is lossless, facilitate etc. it is excellent
Point, but traditional low strain dynamic method is only used for the underground pile foundation of no superstructure, and if there is superstructure, internal meeting is anti-
It is emitted back towards stress wave, which will interact with the shake signal that hits for tapping stake top, to influence underground structure integrity detection result
Correctness.
For this basic special underground structure engineering object of electric power pylon, if filtering off top iron in the case where lossless
The waveform influence that tower is reflected back, invention are easy to engineers and technicians' understanding, convenient electric power pylon foundation structure integrality inspection
Survey method is extremely urgent.
Summary of the invention
In view of this, the present invention provides a kind of electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method,
It can be carried out non-destructive testing for electric power pylon foundation structure integrality, thus more suitable for practical.
In order to achieve the above object, electric power pylon foundation structure integrality low strain dynamic upgoing wave detection side provided by the invention
The technical solution of method is as follows：
Electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method provided by the invention, includes the following steps：
The top surface of electric power pylon foundation structure to be measured is tapped by striking mechanism, so that electric power pylon foundation structure to be measured
Inside forms stress wave acceleration signal；
It is once tapped through in journey same, the stress wave for obtaining different height on electric power pylon foundation structure side wall to be measured accelerates
Signal is spent, and is repeated as many times；
The stress wave acceleration signal is obtained into the speed signal of the stress wave by Integral Processing；
By the speed signal of the stress wave, formula (1) is brought into：
V ↑ (L1, t)=V (L1, t)-V (L2, t+T)+V ↑ (L1, t+2T)) (1)
Wherein V ↑ (L1, t) is t moment electric power pylon foundation structure side wall first position uplink Stress wave speed to be measured, V
(L1, t) is the Stress wave speed of t moment electric power pylon foundation structure side wall first position to be measured, and V (L2, t+T) is the t+T moment
The Stress wave speed of the electric power pylon foundation structure side wall second position to be measured, V ↑ (L1, t+2T) are t+2T moment transmission of electricity iron to be measured
The uplink Stress wave speed of the tower foundation structure side wall second position, initial time：V (L1, t)=0, V ↑ (L1, t+2T)=0；
Processing obtains V ↑ (L1, t) image, i.e. uplink Stress wave speed curve；
According to the different feature of the upgoing wave rate curve, the integrality of electric power pylon foundation structure to be measured is made and is sentenced
It is disconnected, and obtain judgement conclusion, the judgement conclusion includes complete, expanding, necking down fine fisssure cavity.
Following skill also can be used in electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method provided by the invention
Art measure further realizes.
Preferably, the electric power pylon foundation structure integrality low strain dynamic upgoing wave detection device applied in the method
Including the first acceleration transducer (3), the second acceleration transducer (4) and striking mechanism,
First acceleration transducer (3) is fixedly connected on first of electric power pylon foundation structure (5) side wall to be measured
It sets,
Second acceleration transducer (4) is fixedly connected on the second of electric power pylon foundation structure (5) side wall to be measured
It sets,
The first position and the second position are different positions；
The striking mechanism, which is used to apply to the top surface of the electric power pylon foundation structure (5), taps active force；
The acceleration signal generated by the percussion active force can respectively by first acceleration transducer (3) and
Second acceleration transducer (4) collects.
Preferably, first acceleration transducer (3) and second acceleration transducer (4) paste with it is described to
It surveys on the side wall of electric power pylon foundation structure (5).
Preferably, first acceleration transducer (3), second acceleration transducer (4) with it is described to be measured defeated
Binder between ferroelectric tower foundation structure (5) side wall is selected from one of glue, butter, plasticine.
Preferably, the striking mechanism is hammer (2),
The head of the hammer (2) is in the top surface top of the electric power pylon foundation structure (5) to be measured, when the hammer
(2) when the top surface of electric power pylon foundation structure (5) to be measured described in head impact, the hammer (2) is to the transmission of electricity iron to be measured
Tower foundation structure (5), which generates, taps active force.
Preferably, the hammer (2) further includes handle, one end of the handle is fixedly connected on the hammer (2)
Head.
Preferably, the striking mechanism includes positioning disk (6), suspending rod (7), rotating electric machine (8), the first telescoping mechanism
(10), the second telescoping mechanism (11), the first linking arm (13), the second linking arm (12) and knocking component (14),
The positioning disk (6) is fixedly connected on a rack by its top surface, so that the position of the positioning disk (6) is relatively solid
It is fixed；
The bottom surface of the positioning disk (6) is provided with ring-shaped guide rail (15), and the suspending rod (7) passes through the upper end and the ring
Shape guide rail (15) constitutes guideway, and the lower end of the suspending rod (7) is fixedly connected on the upper end of the rotating electric machine (8)；
The output shaft (9) of the rotating electric machine (8) is fixedly connected on the fixing end of first telescoping mechanism (10)；
First linking arm (13) includes the first vertical portion and first horizontal portion, and one end of first vertical portion is fixed
It is connected to one end of the first horizontal portion, so that the angle between first vertical portion and the first horizontal portion is in 90 °；
Second linking arm (12) includes the second vertical portion and the second horizontal part, and one end of second vertical portion is fixedly connected on institute
One end of the second horizontal part is stated, so that the angle between second vertical portion and second horizontal part is in 90 °；
The other end of first vertical portion is fixedly connected on the movable end of first telescoping mechanism (10), and described first
The other end of horizontal part is fixedly connected on the fixing end of second telescoping mechanism (11)；
The other end of second horizontal part is fixedly connected on the movable end of second telescoping mechanism (11), and described second
The other end of vertical portion is fixedly connected on the knocking component (14)；
The knocking component is in the top surface top of the electric power pylon foundation structure (5) to be measured, when the knocking component
(14) when hitting the top surface of the electric power pylon foundation structure (5) to be measured, the knocking component is to the electric power pylon base to be measured
Plinth structure (5), which generates, taps active force.
Preferably, the telescopic direction of first telescoping mechanism (10) is vertical direction,
First telescoping mechanism (10) includes the first cylinder body (27), first piston (26), the first hydraulic oil into liquid return hole
(24) and the second hydraulic oil is into liquid return hole (25),
Sliding pair, also, described first are constituted between the first piston (26) and the inner wall of first cylinder body (27)
First cylinder body (27) is divided into the first cavity (23) and the second cavity (22) by piston (26)；
First hydraulic oil is connected into liquid return hole (24) with first cavity (23)；
Second hydraulic oil is connected into liquid return hole (25) with second cavity (22).
Preferably,
First hydraulic oil is set to the top of first cavity (23) into liquid return hole (24)；
Second hydraulic oil is set to the bottom of second cavity (22) into liquid return hole (25).
Preferably, the telescopic direction of second telescoping mechanism (11) is horizontal direction,
Described the and telescoping mechanism (11) includes the second cylinder body (16), second piston (17), third hydraulic oil into liquid return hole
(20) and the 4th hydraulic oil is into liquid return hole (21),
Sliding pair, also, described second are constituted between the second piston (17) and the inner wall of second cylinder body (16)
Second cylinder body (16) is divided into third cavity (18) and the 4th cavity (19) by piston (17)；
The third hydraulic oil is connected into liquid return hole (20) with the third cavity (18)；
4th hydraulic oil is connected into liquid return hole (19) with the 4th cavity (19).
Preferably,
The third hydraulic oil is set to the left end of the third cavity (18) into liquid return hole (20)；
4th hydraulic oil is set to the right end of the 4th cavity (19) into liquid return hole (21).
Preferably, the transition between first vertical portion and the first horizontal portion is rounded.
Preferably, the transition between second vertical portion and second horizontal part is rounded.
Preferably, the length of first cylinder body (27) at least meet bottom edge when the first piston (26) with
Second hydraulic oil into liquid return hole (25) upper edge when same straight line, the knocking component (14) contact is described to be measured
The top surface of electric power pylon foundation structure (5), and still there is the trend moved downward.
Preferably, the length of second cylinder body (16) at least meets：
When the right hand edge of the second piston (17) and the left edge of the 4th hydraulic oil into liquid return hole (21) are in same
When one straight line, the right edge of the right edge of the knocking component (14) and the electric power pylon foundation structure (5) to be measured in
On same straight line；
When the second piston (17) left edge and the third hydraulic oil into liquid return hole (20) right edge in same
When one straight line, the axial centre of the longitudinal center line of the knocking component (14) and the electric power pylon foundation structure (5) to be measured
Line is conllinear.
Preferably,
On the positioning disk (6), groove is equipped at the ring-shaped guide rail (15), the top of county's sunpender (7) is set
It is equipped with convex block, the groove is adapted with the convex block.
Preferably,
The bottom surface upper end of the groove is provided with the first brush head, and the bottom surface of the convex block is provided with the second brush head, and described
It opposite can be slided between one brush head and second brush head and there is frictional force.
Compared with prior art, the beneficial effect of technical solution of the present invention is：
Electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method provided by the invention is applied to electric power pylon
When foundation structure integrality low strain dynamic upgoing wave detects, striking mechanism at the top of electric power pylon foundation structure to be measured to striking
It hits, and obtains electric power pylon foundation structure side wall first position and the second position to be measured due to tapping the stress wave acceleration generated
The speed signal of stress wave can be obtained using data conversion for signal, then again by stress wave speed signal curve
Feature is observed, and the integrality judgement conclusion of electric power pylon foundation structure to be measured can be obtained, when carrying out confirmatory experiment, as a result
Accuracy rate reaches or approaches 100%, therefore, can carry out non-destructive testing for electric power pylon foundation structure integrality, and
With very high accuracy rate.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the step of electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method provided in an embodiment of the present invention
Rapid flow chart.
Fig. 2 is the electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method that the embodiment of the present invention 1 provides
The structural schematic diagram of application apparatus；
Fig. 3 is the electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method that the embodiment of the present invention 2 provides
Application apparatus is in the structural schematic diagram under the conditions of first state；
Fig. 4 is the electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method that the embodiment of the present invention 2 provides
Application apparatus is in the structural schematic diagram under the second status condition；
Fig. 5 is the partial enlargement structural representation of part A in Fig. 3；
Fig. 6 is the partial enlargement structural representation of part B in Fig. 4；
Fig. 7 is the electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method that the embodiment of the present invention 2 provides
The structural schematic diagram for the positioning disk applied in application apparatus.
Specific embodiment
The present invention in order to solve the problems existing in the prior art, provides on a kind of electric power pylon foundation structure integrality low strain dynamic
Traveling wave detector method can be carried out non-destructive testing for electric power pylon foundation structure integrality, thus more suitable for practical.
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to electric power pylon foundation structure integrality low strain dynamic upgoing wave detection side proposed according to the present invention
Method, specific embodiment, structure, feature and its effect, detailed description is as follows.In the following description, a different " implementation
What example " or " embodiment " referred to is not necessarily the same embodiment.In addition, the feature, structure or feature in one or more embodiments can
It is combined by any suitable form.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, is specifically interpreted as：It can simultaneously include A and B, can be with individualism A, it can also be with individualism
B can have above-mentioned three kinds of any case.
Embodiment 1
As shown in Figure 1, electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method base provided in this embodiment
It is realized, the electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method packet in application apparatus provided by the invention
Include following steps：
Step 1：The top surface of electric power pylon foundation structure 5 to be measured is tapped using striking mechanism provided by the invention, so as to
The inside for surveying electric power pylon foundation structure 5 forms stress wave acceleration signal；
Step 2：The stress wave is obtained by first acceleration transducer 3 and second acceleration transducer 4
Acceleration signal；
Step 3：The stress wave that first acceleration transducer 3 and second acceleration transducer 4 are obtained accelerates
Degree signal obtains the speed signal of the stress wave by Integral Processing；
Step 4：By the speed signal of the stress wave, formula (1) is brought into：
V ↑ (L1, t)=V (L1, t)-V (L2, t+T)+V ↑ (L1, t+2T)) (1)
Wherein V ↑ (L1, t) be t moment described in 3 position uplink Stress wave speed of the first acceleration transducer, V (L1,
It t) is the Stress wave speed of 3 position of the first acceleration transducer described in t moment, V (L2, t+T) is second described in the t+T moment
The Stress wave speed of 4 position of acceleration transducer, V ↑ (L1, t+2T) are the first acceleration transducer 3 described in the t+2T moment
The uplink Stress wave speed of position, initial time：V (L1, t)=0, V ↑ (L1, t+2T)=0, unit are international unit；
Step 5：Processing obtains V ↑ (L1, t) image, i.e. uplink Stress wave speed curve；
Step 6：According to the different feature of the upgoing wave rate curve, to the complete of electric power pylon foundation structure 5 to be measured
Property judge, and obtain judgement conclusion, the judgement conclusion includes complete, expanding, necking down fine fisssure cavity.
Wherein, the case where different characteristic corresponding pile integrity, is as shown in table 1：
Electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method provided by the invention is applied to electric power pylon
When foundation structure integrality low strain dynamic upgoing wave detects, striking mechanism at the top of electric power pylon foundation structure to be measured to striking
It hits, and obtains electric power pylon foundation structure side wall first position and the second position to be measured due to tapping the stress wave acceleration generated
The speed signal of stress wave can be obtained using data conversion for signal, then again by stress wave speed signal curve
Feature is observed, and the integrality judgement conclusion of electric power pylon foundation structure to be measured can be obtained, when carrying out confirmatory experiment, as a result
Accuracy rate reaches or approaches 100%, therefore, can carry out non-destructive testing for electric power pylon foundation structure integrality, and
With very high accuracy rate.
Embodiment 2
As shown in Fig. 2, electric power pylon foundation structure integrality low strain dynamic upgoing wave detection device packet provided in this embodiment
Include the first acceleration transducer 3, the second acceleration transducer 4 and striking mechanism.First acceleration transducer 3 is fixedly connected on
The first position of 5 side wall of electric power pylon foundation structure to be measured, the second acceleration transducer 4 are fixedly connected on electric power pylon base to be measured
The second position of 5 side wall of plinth structure, first position and the second position are different positions；Striking mechanism is used for electric power pylon base
The top surface of plinth structure 5, which applies, taps active force；It can be accelerated respectively by first by tapping the acceleration signal that active force generates
Degree sensor 3 and the second acceleration transducer 4 collect.
Wherein, the first acceleration transducer 3 and the second acceleration transducer 4 are pasted and electric power pylon foundation structure 5 to be measured
Side wall on.In this case, accurate stress wave acceleration signal can be collected.
Wherein, the first acceleration transducer 3, the second acceleration transducer 4 and 5 side wall of electric power pylon foundation structure to be measured it
Between binder be selected from one of glue, butter, plasticine.In this case, bonding is convenient and easy to disassemble.
Wherein, striking mechanism is hammer 2.The head of hammer 2 is in the top surface top of electric power pylon foundation structure 5 to be measured,
When the top surface of the head impact of hammer 2 electric power pylon foundation structure 5 to be measured, hammer 2 produces electric power pylon foundation structure 5 to be measured
It is raw to tap active force.In this case, since the structure of hammer 2 is simply easy to obtain, application is convenient.Its disadvantage
It is, needs labor intensive resource, and, it is difficult to the size of control percussion active force.
Wherein, hammer 2 further includes handle, and one end of handle is fixedly connected on the head of hammer 2.In this case, just
Hammer 2 is operated in manpower.
Embodiment 3
As shown in figure 3 to figure 7, the present embodiment improves on the basis of embodiment 1, in transmission of electricity iron provided in this embodiment
In the application apparatus of tower foundation structural intergrity low strain dynamic uplink wave detecting method, striking mechanism include positioning disk 6, suspending rod 7,
Rotating electric machine 8, the first telescoping mechanism 10, the second telescoping mechanism 11, the first linking arm 13, the second linking arm 12 and knocking component
14.Positioning disk 6 is fixedly connected on a rack by its top surface, so that the position of positioning disk 6 is relatively fixed；The bottom surface of positioning disk 6
It is provided with ring-shaped guide rail 15, suspending rod 7 constitutes guideway by the upper end and ring-shaped guide rail 15, and the lower end of suspending rod 7 is fixed to be connected
It is connected to the upper end of rotating electric machine 8；The output shaft 9 of rotating electric machine 8 is fixedly connected on the fixing end of the first telescoping mechanism 10；First connects
Connecing arm 13 includes the first vertical portion and first horizontal portion, and one end of the first vertical portion is fixedly connected on one end of first horizontal portion,
So that the angle between the first vertical portion and first horizontal portion is in 90 °；Second linking arm 12 includes the second vertical portion and the second water
Flat portion, one end of the second vertical portion are fixedly connected on one end of the second horizontal part so that the second vertical portion and the second horizontal part it
Between angle be in 90 °；The other end of first vertical portion is fixedly connected on the movable end of the first telescoping mechanism 10, first horizontal portion
The other end is fixedly connected on the fixing end of the second telescoping mechanism 11；The other end of second horizontal part is fixedly connected on the second telescopic machine
The movable end of structure 11, the other end of the second vertical portion are fixedly connected on knocking component 14；Knocking component is in electric power pylon to be measured
The top surface top of foundation structure 5, when knocking component 14 hits the top surface of electric power pylon foundation structure 5 to be measured, knocking component pair
Electric power pylon foundation structure 5 to be measured, which generates, taps active force.In this case, the first telescoping mechanism 10, second can be passed through
Telescoping mechanism 11 and the mobile mechanism being made of positioning disk 6 and guideway carry out three-dimensional movement to knocking component 14, so that striking
Any specified beating point on the top surface of electric power pylon foundation structure 5 to be measured can be reached by hitting element, also, pass through rotating electric machine
8, the first telescoping mechanism 10, the second telescoping mechanism 11 and guideway are controlled, and can finally control striking for knocking component 14
The size of active force is hit, so that adding eventually by the stress wave that the first acceleration transducer 3 and the second acceleration transducer 4 obtain
Speed signal is more stable.
Wherein, the telescopic direction of the first telescoping mechanism 10 is vertical direction.First telescoping mechanism 10 include the first cylinder body 27,
First piston 26, the first hydraulic oil are into liquid return hole 24 and the second hydraulic oil into liquid return hole 25, first piston 26 and the first cylinder body 27
Inner wall between constitute sliding pair, also, the first cylinder body 27 is divided into the first cavity 23 and the second cavity 22 by first piston 26；
First hydraulic oil is connected into liquid return hole 24 with the first cavity 23；Second hydraulic oil is connected into liquid return hole 25 with the second cavity 22.?
In this case, moving up and down for knocking component 14 can be controlled by the first telescoping mechanism 10.
Wherein, the first hydraulic oil is set to the top of the first cavity 23 into liquid return hole 24；Two hydraulic oil are set into liquid return hole 25
It is placed in the bottom of the second cavity 22.In this case, enable to the stroke of knocking component 14 moved up and down bigger.
Wherein, the telescopic direction of the second telescoping mechanism 11 is horizontal direction.The and telescoping mechanism 11 include the second cylinder body 16,
Second piston 17, third hydraulic oil are into liquid return hole 20 and the 4th hydraulic oil into liquid return hole 21, second piston 17 and the second cylinder body 16
Inner wall between constitute sliding pair, also, the second cylinder body 16 is divided into third cavity 18 and the 4th cavity 19 by second piston 17；
Third hydraulic oil is connected into liquid return hole 20 with third cavity 18；4th hydraulic oil is connected into liquid return hole 19 with the 4th cavity 19.?
In this case, the movement in the horizontal direction of knocking component 14 can be controlled by the second telescoping mechanism 11 of control.
Wherein, third hydraulic oil is set to the left end of third cavity 18 into liquid return hole 20；4th hydraulic oil is into liquid return hole 21
It is set to the right end of the 4th cavity 19.In this case, enable to the stroke of knocking component 14 moved horizontally bigger.
Wherein, the transition between the first vertical portion and first horizontal portion is rounded.It can be avoided stress concentration, to prolong
The service life of long first linking arm 13.
Wherein, the transition between the second vertical portion and the second horizontal part is rounded.It can be avoided stress concentration, to extend
The service life of second linking arm 12.
Wherein, the length of the first cylinder body 27 at least meets the bottom edge for working as first piston 26 and the second hydraulic oil into time liquid
The upper edge of mouth 25 is when same straight line, the top surface of 14 contact measured electric power pylon foundation structure 5 of knocking component, and still
With the trend moved downward.In this case, can guarantee knocking component 14 with electric power pylon foundation structure 5 to be measured
Downward active force can be applied to the top surface of electric power pylon foundation structure 5 to be measured after the contact of top surface.
Wherein, the length of the second cylinder body 16 at least meets：When second piston 17 right hand edge and the 4th hydraulic oil into return liquid
When the left edge of mouth 21 is in same straight line, the right of the right edge of knocking component 14 and electric power pylon foundation structure 5 to be measured
Edge is on same straight line；When second piston 17 left edge and third hydraulic oil into liquid return hole 20 right edge in always
When line, the longitudinal center line of knocking component 14 is conllinear with the longitudinal center line of electric power pylon foundation structure 5 to be measured.In such case
Under, it can guarantee that knocking component 14 is traversed in the top surface of electric power pylon foundation structure 5 to be measured, therefore, enable to knocking component
14 can tap being arbitrarily designated a little for 5 top surface of electric power pylon foundation structure to be measured.
Wherein, on positioning disk 6, groove is equipped at ring-shaped guide rail 15, the top of county's sunpender 7 is provided with convex block, groove
It is adapted with convex block.In this case, it can guarantee that guideway is more convenient in application process.
Wherein, the bottom surface upper end of groove is provided with the first brush head, and the bottom surface of convex block is provided with the second brush head, the first brush head with
It opposite can be slided between second brush head and there is frictional force.In this case, it can guarantee that suspending rod 7 can rest on ring
Any given position of shape guide rail 15, from the position for easily facilitating control suspending rod 7.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (17)
1. a kind of electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method, which is characterized in that include the following steps：
The top surface of electric power pylon foundation structure to be measured is tapped by striking mechanism, so that the inside of electric power pylon foundation structure to be measured
Form stress wave acceleration signal；
It is once tapped through in journey same, obtains the stress wave acceleration letter of different height on electric power pylon foundation structure side wall to be measured
Number, and be repeated as many times；
The stress wave acceleration signal is obtained into the speed signal of the stress wave by Integral Processing；
By the speed signal of the stress wave, formula (1) is brought into：
V ↑ (L1, t)=V (L1, t)-V (L2, t+T)+V ↑ (L1, t+2T)) (1)
Wherein V ↑ (L1, t) is t moment electric power pylon foundation structure side wall first position uplink Stress wave speed to be measured, V (L1, t)
For the Stress wave speed of t moment electric power pylon foundation structure side wall first position to be measured, V (L2, t+T) is that the t+T moment is to be measured defeated
The Stress wave speed of the ferroelectric tower foundation structure side wall second position, V ↑ (L1, t+2T) are t+2T moment electric power pylon basis to be measured
The uplink Stress wave speed of the structure side wall second position, initial time：V (L1, t)=0, V ↑ (L1, t+2T)=0, unit are
International unit；
Processing obtains V ↑ (L1, t) image, i.e. uplink Stress wave speed curve；
According to the different feature of the upgoing wave rate curve, the integrality of electric power pylon foundation structure to be measured is judged,
And obtaining judgement conclusion, the judgement conclusion includes complete, expanding, necking down fine fisssure cavity.
2. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 1, feature exist
In the application apparatus for the electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method applied in the method includes
First acceleration transducer (3), the second acceleration transducer (4) and striking mechanism,
First acceleration transducer (3) is fixedly connected on the first position of electric power pylon foundation structure (5) side wall to be measured,
Second acceleration transducer (4) is fixedly connected on the second position of electric power pylon foundation structure (5) side wall to be measured,
The first position and the second position are different positions；
The striking mechanism, which is used to apply to the top surface of the electric power pylon foundation structure (5), taps active force；
The acceleration signal generated by the percussion active force can be respectively by first acceleration transducer (3) and described
Second acceleration transducer (4) collects.
3. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 2, feature exist
In, first acceleration transducer (3) and second acceleration transducer (4) setting with the electric power pylon base to be measured
On the side wall of plinth structure (5).
4. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 3, feature exist
In first acceleration transducer (3), second acceleration transducer (4) and the electric power pylon foundation structure to be measured
(5) binder between side wall is selected from one of glue, butter, plasticine.
5. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 2, feature exist
In, the striking mechanism is hammer (2),
The head of the hammer (2) is in the top surface top of the electric power pylon foundation structure (5) to be measured, when the hammer (2)
Head impact described in electric power pylon foundation structure (5) to be measured top surface when, the hammer (2) is to the electric power pylon base to be measured
Plinth structure (5), which generates, taps active force.
6. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 5, feature exist
In the hammer (2) further includes handle, and one end of the handle is fixedly connected on the head of the hammer (2).
7. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 2, feature exist
In, the striking mechanism include positioning disk (6), it is suspending rod (7), rotating electric machine (8), the first telescoping mechanism (10), second flexible
Mechanism (11), the first linking arm (13), the second linking arm (12) and knocking component (14),
The positioning disk (6) is fixedly connected on a rack by its top surface, so that the position of the positioning disk (6) is relatively fixed；
The bottom surface of the positioning disk (6) is provided with ring-shaped guide rail (15), and the suspending rod (7) is led by the upper end and the annular
Rail (15) constitutes guideway, and the lower end of the suspending rod (7) is fixedly connected on the upper end of the rotating electric machine (8)；
The output shaft (9) of the rotating electric machine (8) is fixedly connected on the fixing end of first telescoping mechanism (10)；
First linking arm (13) includes the first vertical portion and first horizontal portion, and one end of first vertical portion is fixedly connected
In one end of the first horizontal portion, so that the angle between first vertical portion and the first horizontal portion is in 90 °；It is described
Second linking arm (12) includes the second vertical portion and the second horizontal part, and one end of second vertical portion is fixedly connected on described the
One end of two horizontal parts, so that the angle between second vertical portion and second horizontal part is in 90 °；
The other end of first vertical portion is fixedly connected on the movable end of first telescoping mechanism (10), the first level
The other end in portion is fixedly connected on the fixing end of second telescoping mechanism (11)；
The other end of second horizontal part is fixedly connected on the movable end of second telescoping mechanism (11), and described second is vertical
The other end in portion is fixedly connected on the knocking component (14)；
The knocking component is in the top surface top of the electric power pylon foundation structure (5) to be measured, when the knocking component (14)
When hitting the top surface of the electric power pylon foundation structure (5) to be measured, the knocking component ties the electric power pylon basis to be measured
Structure (5), which generates, taps active force.
8. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 7, feature exist
In, the telescopic direction of first telescoping mechanism (10) is vertical direction,
First telescoping mechanism (10) includes the first cylinder body (27), first piston (26), the first hydraulic oil into liquid return hole (24)
With the second hydraulic oil into liquid return hole (25),
Sliding pair, also, the first piston are constituted between the first piston (26) and the inner wall of first cylinder body (27)
(26) first cylinder body (27) is divided into the first cavity (23) and the second cavity (22)；
First hydraulic oil is connected into liquid return hole (24) with first cavity (23)；
Second hydraulic oil is connected into liquid return hole (25) with second cavity (22).
9. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 8, feature exist
In,
First hydraulic oil is set to the top of first cavity (23) into liquid return hole (24)；
Second hydraulic oil is set to the bottom of second cavity (22) into liquid return hole (25).
10. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 7, feature exist
In, the telescopic direction of second telescoping mechanism (11) is horizontal direction,
Described the and telescoping mechanism (11) includes the second cylinder body (16), second piston (17), third hydraulic oil into liquid return hole (20)
With the 4th hydraulic oil into liquid return hole (21),
Sliding pair, also, the second piston are constituted between the second piston (17) and the inner wall of second cylinder body (16)
(17) second cylinder body (16) is divided into third cavity (18) and the 4th cavity (19)；
The third hydraulic oil is connected into liquid return hole (20) with the third cavity (18)；
4th hydraulic oil is connected into liquid return hole (19) with the 4th cavity (19).
11. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 10, feature
It is,
The third hydraulic oil is set to the left end of the third cavity (18) into liquid return hole (20)；
4th hydraulic oil is set to the right end of the 4th cavity (19) into liquid return hole (21).
12. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 7, feature exist
In the transition between first vertical portion and the first horizontal portion is rounded.
13. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 7, feature exist
In the transition between second vertical portion and second horizontal part is rounded.
14. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 9, feature exist
In the length of first cylinder body (27) at least meets bottom edge and second hydraulic oil when the first piston (26)
Into liquid return hole (25) upper edge when same straight line, the knocking component (14) the contact electric power pylon basis knot to be measured
The top surface of structure (5), and still there is the trend moved downward.
15. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 11, feature
It is, the length of second cylinder body (16) at least meets：
When the right hand edge of the second piston (17) and the left edge of the 4th hydraulic oil into liquid return hole (21) are in always
When line, the right edge of the right edge of the knocking component (14) and the electric power pylon foundation structure (5) to be measured is in same
On straight line；
When the second piston (17) left edge and the third hydraulic oil into liquid return hole (20) right edge in always
When line, the longitudinal center line of the longitudinal center line of the knocking component (14) and the electric power pylon foundation structure (5) to be measured is total
Line.
16. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 7, feature exist
In,
On the positioning disk (6), groove is equipped at the ring-shaped guide rail (15), the top of county's sunpender (7) is provided with
Convex block, the groove are adapted with the convex block.
17. electric power pylon foundation structure integrality low strain dynamic uplink wave detecting method according to claim 16, feature
It is,
The bottom surface upper end of the groove is provided with the first brush head, and the bottom surface of the convex block is provided with the second brush head, first brush
It opposite can be slided between head and second brush head and there is frictional force.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127917A (en) * | 2010-12-03 | 2011-07-20 | 中国民航大学 | Low-strain testing device for detecting integrity of ultralong bored concrete pile |
| CN203551516U (en) * | 2013-10-30 | 2014-04-16 | 天津市建联工程勘测有限公司 | Device for detecting integrality of pile body by using low strain method |
| CN204312378U (en) * | 2014-12-16 | 2015-05-06 | 李天� | A kind of Mobile ceiling fan |
| CN105887940A (en) * | 2014-11-13 | 2016-08-24 | 中国建筑科学研究院 | Double-speed low-strain method for detecting integrity of existing pile foundation by adopting excitation in pile body |
| CN205552514U (en) * | 2016-05-09 | 2016-09-07 | 徐州工程学院 | A robotic arm that is used for industry automatic clamp to get material |
| CN105987041A (en) * | 2015-01-27 | 2016-10-05 | 杨双来 | Novel double-acting single piston type hydraulic cylinder |
| CN206667253U (en) * | 2017-04-15 | 2017-11-24 | 国家电网公司 | Pile No. piling machine |
-
2018
- 2018-08-14 CN CN201810924715.4A patent/CN108894244B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127917A (en) * | 2010-12-03 | 2011-07-20 | 中国民航大学 | Low-strain testing device for detecting integrity of ultralong bored concrete pile |
| CN203551516U (en) * | 2013-10-30 | 2014-04-16 | 天津市建联工程勘测有限公司 | Device for detecting integrality of pile body by using low strain method |
| CN105887940A (en) * | 2014-11-13 | 2016-08-24 | 中国建筑科学研究院 | Double-speed low-strain method for detecting integrity of existing pile foundation by adopting excitation in pile body |
| CN204312378U (en) * | 2014-12-16 | 2015-05-06 | 李天� | A kind of Mobile ceiling fan |
| CN105987041A (en) * | 2015-01-27 | 2016-10-05 | 杨双来 | Novel double-acting single piston type hydraulic cylinder |
| CN205552514U (en) * | 2016-05-09 | 2016-09-07 | 徐州工程学院 | A robotic arm that is used for industry automatic clamp to get material |
| CN206667253U (en) * | 2017-04-15 | 2017-11-24 | 国家电网公司 | Pile No. piling machine |
Non-Patent Citations (2)
| Title |
|---|
| 蔡以智: "桩基低应变完整性测试的双速度分析", 《中国测试技术》 * |
| 赵建夏等: "桩基低应变完整性测试的双速度分析", 《岩土工程界》 * |
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