CN106088170A - Detection device and the detection method thereof of foundation pile length is determined based on parallel seismic wave method - Google Patents
Detection device and the detection method thereof of foundation pile length is determined based on parallel seismic wave method Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000002689 soil Substances 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 7
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 4
- 238000012952 Resampling Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 238000012937 correction Methods 0.000 description 7
- 239000004927 clay Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- Geochemistry & Mineralogy (AREA)
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Abstract
nullThe detection device of foundation pile length is determined based on parallel seismic wave method，(300) are hammered into shape including exciting、Main frame (400)、Rig (500)、Rig (600) and trigger (800) under righting，Trigger (800) is placed on the cushion cap of described foundation pile (100)，Main frame (400) is connected with trigger (800) data circuit group，It is characterized in that，Described rig (500) includes drill body (501)，The bottom of described drill body (501) is provided with drill bit (1)、Top is provided with motor (12)，The screw rod (5) that motor (12) is rotated is installed in described drill body (501)，It is provided with between described screw rod (5) and drill bit (1) and pulverizes pillar (7)，Beneficial effects of the present invention: the present invention is structure as a whole by being laid by detection device，The when of detection, speed is fast，Can detect at any time and need not pre-punching，Reduce the engineering time，It is suitable for promoting the use of.
Description
Technical field
The present invention relates to a kind of based on parallel seismic wave method detection foundation pile device for detecting length, belong to building detection technique neck
Territory.
Background technology
Along with the fast development of economic construction, high buildings and large mansions continue to bring out, and pile foundation engineering obtains and develops on an unprecedented scale, pile foundation
It it is the base form being most widely used at present.Owing to pile foundation engineering construction has highly disguised, find that quality problems are relative
More difficult, industry is much owing to the quality problems of pile foundation engineering cause with the quality accident in civil buildings.
Test Technology of Pile Foundation has obtained significant progress in recent years, and coherent detection standard, specification are in succession promulgated and implement, right
Ensure that construction quality serves good effect.But the most conventional Test Technology of Pile Foundation, such as static load test, core drilling method, height
Strain Method, low strain dynamic method and sound wave transmission method etc., be both needed to directly contact Under Pile top, thus its use occasion receive certain
Limit, be normally only applicable to before top-out structure not yet constructs.
But, engineering construction is frequently encountered the foundation pile length under existing buildings or structures or integrity are suspected
And produce contradiction and disputes, or owing to existing building is of the remote past, when subsequent adaptation engineering lacks stake capsule information such as long grade, with
And owing to there occurs that the other reasons such as surface subsidence, earthquake causes the situations such as later stage destruction to pile foundation and needs to build existing
Pile foundation under building detects, but owing to now top-out structure has existed, it is impossible to directly contact stake top, thus routine
Pile foundation inspection method is helpless.
Owing under current domestic existing buildings or structures, the systematic study of Test Technology of Pile Foundation still belongs to blank, therefore research one
Pile detection new technique under the existing buildings or structures that kind strong adaptability, restricted condition are few, to objectively and accurately evaluating work
Cheng Zhiliang, the contradiction and disputes solved in engineering construction and improve existing buildings or structures performance rating or dilapidated house secure authentication refers to
Mark systems etc., have bigger realistic meaning, also will promote the further development of architecture foundation pile detection technique.
As Application No. CN103953076A disclose a kind of civil engineering pile foundation engineering quality testing field based on
Depth determination method at the bottom of the existing engineering pile stake of side hole transmitted wave bathmometry, by detection in inspecting hole after stake sidetracking inspecting hole,
And generate time depth signal graph according to different depth signal along the degree of depth, by determining flex point in time depth signal graph,
And to the flex point degree of depth by the degree of depth at the bottom of obtaining after flex point adjusting for depth formula correction.The present invention not by superstructure to waveform
Impact, easy to detect, determine that corner position is simple and directly perceived.At the bottom of determining based on two line intersection points with existing side hole transmitted wave method deep
The method of degree is compared, and drilling depth is required relatively low by side hole transmitted wave bathmometry, only requires more than and treats peg 2～3m, reduces
Inspecting hole hole depth requirement, cost-effective, for also there is preferable operability without the technical staff of engineering experience, preferably solve
Current existing engineering pile be difficult to determine at the bottom of the difficult problem of the degree of depth.
And for example Application No. CN103898931A disclose a kind of foundation pile three-dimensional detection device based on borehole radar and
Foundation pile 3 D detection method, described detection device includes foundation pile three-dimensional detection device based on borehole radar, sets through hole based on interior
Foundation pile, described through hole along foundation pile axial direction extend, including borehole radar, traction module and central control module, described brill
Hole radar includes antenna and radar host computer in interconnective well, and described radar host computer is connected with central control module, described inspection
Survey method includes positioning antenna in well, 3-D scanning detection, displacement detection, transmission data, generates the steps such as 3-D view, uses
Technical solutions according to the invention can realize foundation pile integrity, pile bottom sediment thickness and the detection of length of reinforcing cage, and can
To obtain 3-D view, detection personnel are allowed intuitively to arrive foundation pile and the situation of foundation pile periphery.
Above-mentioned two documents is the immediate prior art of pre-the application, but its problem having is as follows: preliminary examination
Surveying cumbersome, need punching, note clear water, operation is comparatively laborious.
Summary of the invention
Instant invention overcomes the problem that prior art exists, it is proposed that a kind of determine foundation pile length based on parallel seismic wave method
Detection device and detection method thereof, the present invention is structure as a whole by being laid by detection device, and the when of detection, speed is soon, can be with
Time detection need not pre-punching, reduce the engineering time.
The concrete technical scheme of the present invention is as follows:
The detection device of foundation pile length is determined, including under exciting hammer, main frame, rig, righting based on parallel seismic wave method
Rig and trigger, trigger is placed on the cushion cap of described foundation pile, and main frame is connected with trigger data circuit group, and it is special
Levying and be, described rig includes drill body, and the bottom of described drill body is provided with drill bit, top is provided with motor, described drill body
Inside be provided with driven by motor rotate screw rod, be provided with between described screw rod and drill bit and pulverize pillar, described in pulverize pillar
Top be provided with the upper planet wheel that the gear one with screw rod is meshed, the bottom of described broken pillar is provided with the gear two with drill bit
Be meshed lower planetary gear；It is provided with protection pipe in described drill body, in described protection pipe, is placed with cymoscope, described cymoscope and main frame
Connect and have data circuit group two.
Preferentially, described drill bit be routed over multiple lead soil hole one be passed through in drill body, described in pulverize the top of pillar also
Filtration is installed and leads soil dividing plate.The top of described drill bit is also equipped with the unearthed pipe communicated with screw rod, opening of described unearthed pipe
Mouth is downwards.
Preferentially, under described righting, rig includes that car body, the two ends of described car body are provided with mobile fixed cover and rotation
Case, mobile fixed cover is provided with draw ring, and the rotary box end of described car body is provided with strander, between described draw ring and strander
Connecting has steel wire rope, the interlude of described steel wire rope to be propped up by the support bar being arranged on car body.
Based on said apparatus, present invention also offers the detection method determining foundation pile length in based on parallel seismic wave method,
It is characterized in that, comprise the steps:
1) test point is chosen, by being placed under righting above rig by rig, by mobile fixed cover and rotation
Case is fixed, wherein: mobile fixed cover fixes the top entangling rig, and rotary box entangles the lower end of rig；
2) drive steel wire rope pull-up to make rig vertically attention by strander, unclamp mobile fixed cover, and start electricity
Machine drives and bores set depth under drill bit；Wherein: in going down process, soil is entered drill body by leading soil hole one and is led by filtration
Soil dividing plate is discharged to be unearthed outside pipe in entering screw rod；
3) on the cushion cap of foundation pile, trigger is placed, and by the data circuit group of trigger and the data circuit group of cymoscope
Two connect main frame, and before detection, Job readiness completes；
4) first cymoscope is placed in during detection at the bottom of the mouth of pipe or the pipe of protection pipe, on engineering pile, generates machine by exciting mode
While tool ripple, in test tube, detect vibration signal, analyze the quality of signals collecting, if quality is the best, resampling, otherwise
Preserve the waveform of this measuring point, and one exciting detection week after date the height of cymoscope declined or promotes 0.5-1m, continue
Hammering is sampled, till mentioning on cymoscope at the bottom of the mouth of pipe or pipe；
5) main frame 400 exports image, by passing judgment on criterion as follows: 1, time m-depth map in first arrival time slope
Change；2, the significantly decay amplitude of energy；I.e. first arrival time and the comprehensive analysis of amplitude to the seismic wave wave train, it is judged that pile body is long
Degree and integrity.
Beneficial effects of the present invention: the present invention is structure as a whole by being laid by detection device, and the when of detection, speed is fast,
Can detect at any time and need not pre-punching, reduce the engineering time, be suitable for promoting the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention determines the detection device of foundation pile length based on parallel seismic wave method；
Fig. 2 is the structural representation of rig；
Fig. 3 is the structural representation of rig under righting；
Structural representation time Fig. 4 is rig operation under righting；
Fig. 5 is 24# stake testing result figure；
Fig. 6 is 17# stake testing result figure；
Fig. 7 is 166# stake testing result figure；
Fig. 8 is 171# stake testing result figure；
Fig. 9 is boring numbering and the location drawing；
Detailed description of the invention
As it can be seen, determine the detection device of foundation pile length based on parallel seismic wave method, hammer 300 into shape including exciting, exciting hammer 300
It is used on engineering pile, generating mechanical wave by exciting mode；, main frame 400, rig 500, rig 600 and touching under righting
Sending out device 800, trigger 800 is placed on the cushion cap of described foundation pile 100, and main frame 400 is connected with trigger 800 data circuit
Group.Wherein, rig 500 is accomplished vertical lower brill by rig under righting 600 auxiliary.
Rig 500 includes drill body 501, and the bottom of described drill body 501 is provided with drill bit 1, top is provided with motor 12,
The screw rod 5 that motor 12 is rotated is installed in described drill body 501, is provided with between described screw rod 5 and drill bit 1 and pulverizes post
Son 7, described in pulverize the top of pillar 7 and be provided with the upper planet wheel 8 that the gear 1 with screw rod 5 is meshed, described broken pillar 7
Bottom is provided with the gear 2 502 with drill bit 1 and is meshed lower planetary gear；Protection pipe it is provided with, in described protection pipe in described drill body 501
Being placed with cymoscope 4, described cymoscope 4 is connected with main frame 400 data circuit group two.The screw rod 5 that motor 12 is rotated
Rotate thus by upper planet wheel 8 drive pulverize pillar 7 rotate again and by lower planetary gear drive drill bit 1 rotate.
Additionally, drill bit 1 be routed over multiple lead soil hole 1 be passed through in drill body 501, described in pulverize the top of pillar 7 also
Filtration is installed and leads soil dividing plate 9.The top of described drill bit 1 is also equipped with the unearthed pipe 11 communicated with screw rod 5, described unearthed pipe
11 Open Side Down.When lower boring, the soil body enters drill body 501 by leading soil hole 1 and leads native dividing plate 9 by filtration and enter spiral
Be discharged in bar 5 be unearthed outside pipe 11, such rig 500 can quickly under get into and reach designated depth.
Under righting, rig 600 includes that car body 25, the two ends of described car body 25 are provided with mobile fixed cover 22 and rotary box
28, mobile fixed cover 22 is provided with draw ring 20, rotary box 28 end of described car body 25 is provided with strander 16, described draw ring 20
Being connected with between strander 16 and have steel wire rope 19, the interlude of described steel wire rope 19 is supportted by the support bar being arranged on car body 25
Rise.
Based on said apparatus, present invention also offers a kind of detection method determining foundation pile length based on parallel seismic wave method,
It is characterized in that, comprise the steps:
1) test point is chosen, by being placed under righting above rig 600 by rig 500, by mobile fixed cover
22 and rotary box 28 fix, wherein: the mobile fixing top entangling rig 500 of fixed cover 22, rotary box 28 entangles brill
The lower end of hole equipment 500；
2) drive steel wire rope 19 pull-up to make rig 500 vertically attention by strander 16, unclamp mobile fixed cover 22,
And start motor 12 and drive drill bit 1 time to bore set depth；Wherein: in going down process, soil enters drill body by leading soil hole 1
501 and led in soil dividing plate 9 enters screw rod 5 by filtration and be discharged to be unearthed outside pipe 11；
3) on the cushion cap of foundation pile 100, trigger 800 is placed, and by the data circuit group of trigger 800 and cymoscope 4
Data circuit group two connects main frame 400, and before detection, Job readiness completes；
4) first cymoscope is placed in during detection at the bottom of the mouth of pipe or the pipe of protection pipe, is generated on engineering pile by exciting hammer 300
While mechanical wave, in test tube, detect vibration signal, analyze the quality of signals collecting, if quality is the best, resampling, no
Then preserve the waveform of this measuring point, and one exciting detection week after date the height of cymoscope 4 declined or promotes 0.5-1m,
Continue hammering sampling, till mentioning on cymoscope at the bottom of the mouth of pipe or pipe；
5) main frame 400 exports image, by passing judgment on criterion as follows: 1, time m-depth map in first arrival time slope
Change；2, the significantly decay amplitude of energy；I.e. first arrival time and the comprehensive analysis of amplitude to the seismic wave wave train, it is judged that pile body is long
Degree and integrity.
The long detection of stake of community, Ningbo it is applied to based on said apparatus and detection method, as follows: this house is delivered for use
After, No. 7 floor foundation generation differential settlements therein (broad in the middle, the basin shape sedimentation of narrowing toward each end), cause wall segment, beam, plate
Etc. cracking damage phenomenon.
No. 7 building is six floor reinforced concrete frame structure, and house plane is rectangular, and East and West direction is symmetrical, construction area
3869m2, the long 47.04m of thing, north and south width 12.84m, indoor and outdoor terrace discrepancy in elevation 0.20m.Basis uses Φ 426 driven cast-in-place pile,
Concrete piles grade C20, vertical bearing capacity of single pile eigenvalue 400kN.Design requires stake long by absolute altitude, scaffold dual control.
According to this engineering practice, first No. 7 building sitework geological condition is carried out drillhole validation, basis at this
On, use the present invention to be detected the stake of No. 7 building part foundation pile is long, to find out the main cause causing differential settlement.
According to this engineering former Geotechnical Engineering exploration report, No. 7 building pile-base supporting layer buried depth of top surface is at 15.70m～22.70m
Between (when prospecting, aperture elevation is started at), big rise and fall, totally in the V-shaped groove of " corner buried depth is shallow, and middle buried depth is big "
Shape, engineering geological condition is shown in Table 1, and supporting course is farinose argillic horizon.
5.1 No. 7 building sitework geological conditions of table
Arranging 8 geological verification drilling hole altogether in place, No. 7 building, aperture elevation is grade elevation, boring numbering and
Fig. 9 is seen in position, and results of drilling display site soil layers situation is basically identical with former Geotechnical Engineering exploration report, its pile-base supporting layer base
The V-shaped groove that this is deep in centre, both sides are shallow.
This parallel seismic wave method stake long detection instrument connection utilizes geological verification drilling hole, detects 8 piles (accompanying drawing 9) altogether, bores
The center in hole and tested peg stake side plane distance are 0.8m, cushion cap thickness 0.5m.The velocity of longitudinal wave assuming silt clay is
400m/s, the longitudinal wave velocity of silty clay is 800m/s, and the longitudinal wave velocity of pile concrete is 3500m/s.When stake end is positioned at silt
During shale clay, correction factor is 1.1m, and when stake end is positioned at silty clay, correction factor is 1.0m.The partly testing result of stake
As follows:
24# stake: the 24# stake numbered ZK1 of correspondence drilling hole.According to first arrival time slope-inversion point and the size of Mintrop wave amplitude,
Judging that its end is positioned at below grade 21.3m, the stake end degree of depth after correction is 20.3m, i.e. this stake enters supporting course 2.4m.
(referring to accompanying drawing 5)
17# stake: the 17# stake numbered ZK2 of correspondence drilling hole.According to first arrival time slope-inversion point and the size of Mintrop wave amplitude,
Judging that its end is positioned at below grade 20.7m, the stake end degree of depth after correction is 19.6m, is introduced into designing supporting course.(please
Refering to accompanying drawing 6)
166# stake: the 166# stake numbered ZK3 of correspondence drilling hole.Big according to first arrival time slope-inversion point and Mintrop wave amplitude
Little, it is judged that its end is positioned at below grade 21.5m, the stake end degree of depth after correction is 20.5m, enters design supporting course
2.5m.It addition, stake deep 9.5～11.0m section, after first arrival time occurs, prolong relaxation phenomenon strong with amplitude, thus it is speculated that this section of pile body exists
Locally segregation phenomenon.(referring to accompanying drawing 7)
171# stake: the 171# stake numbered ZK4 of correspondence drilling hole.Big according to first arrival time slope-inversion point and Mintrop wave amplitude
Little, it is judged that its end is positioned at below grade about 19.6m, the stake end degree of depth after correction is 18.5m, is introduced into designing holding force
Layer.(referring to accompanying drawing 8)
Conclusion: knowable to testing result, is positioned at the 24# stake in building corner, the stake end of 166# stake enters silty clay
Layer, be positioned at the 17# stake in the middle of building, 171# stake stake end in the 2. b layer silt clay layer, be introduced into designing holding force
Layer.Due to the V-shaped groove-like that this engineering pile foundation supporting course is substantially deep in centre, both sides are shallow, corner engineering pile stake end enters and sets
Meter supporting course, middle part engineering pile stake end is introduced into designing supporting course, causes building that " broad in the middle, narrowing toward each end " finally occurs
Basin shape sedimentation.Testing result can mutually be confirmed with on-site actual situations, provides strong for solving this construction quality dispute
Evidence.In addition to the implementation, the present invention can also have other embodiments.All employing equivalents or equivalent transformation are formed
Technical scheme, all falls within the protection domain of application claims.
Claims (5)
1. determine the detection device of foundation pile length based on parallel seismic wave method, hammer (300), main frame (400), rig into shape including exciting
(500), rig (600) and trigger (800) under righting, trigger (800) is placed on the cushion cap of described foundation pile (100),
Main frame (400) is connected with trigger (800) data circuit group, it is characterised in that
Described rig (500) includes that drill body (501), the bottom of described drill body (501) are provided with drill bit (1), top is installed
There is motor (12), the screw rod (5) that motor (12) is rotated, described screw rod (5) and brill are installed in described drill body (501)
Be provided with and pulverize pillar (7) between head (1), described in pulverize the top of pillar (7) and be provided with gear one (6) phase with screw rod (5)
The upper planet wheel (8) of engagement, the bottom of described broken pillar (7) is provided with the gear two (502) with drill bit (1) and is meshed lower planet
Wheel；It is provided with protection pipe in described drill body (501), in described protection pipe, is placed with cymoscope (4), described cymoscope (4) and main frame
(400) connection has data circuit group two.
2. determine the detection device of foundation pile length as claimed in claim 1 based on parallel seismic wave method, it is characterised in that described drill bit
(1) be routed over and multiple led in soil hole one (2) is passed through drill body (501), described in pulverize the top of pillar (7) and be also equipped with filtering
Lead soil dividing plate (9).
3. determine the detection device of foundation pile length as claimed in claim 1 based on parallel seismic wave method, it is characterised in that described drill bit
(1) top is also equipped with the unearthed pipe (11) communicated with screw rod (5), and Open Side Down for described unearthed pipe (11).
4. as described in any one in claim 1-3, the detection device of foundation pile length, its feature is determined based on parallel seismic wave method
Being, under described righting, rig (600) includes that car body (25), the two ends of described car body (25) are provided with mobile fixed cover
And rotary box (28) (22), mobile fixed cover (22) is provided with draw ring (20), rotary box (28) the end peace of described car body (25)
Equipped with strander (16), it is connected between described draw ring (20) with strander (16) and has steel wire rope (19), described steel wire rope (19)
Interlude is propped up by the support bar being arranged on car body (25).
5. determine the detection method of foundation pile length based on parallel seismic wave method, it is characterised in that comprise the steps:
1) test point is chosen, by rig (500) is placed on rig under righting (600) above, by mobile fixed cover
(22) fix, wherein with rotary box (28): the fixing top entangling rig (500) of mobile fixed cover (22), rotary box
(28) lower end of rig (500) is entangled；
2) drive steel wire rope (19) pull-up to make rig (500) vertically attention by strander (16), unclamp mobile fixed cover
, and start motor (12) and drive and under drill bit (1), bore set depth (22)；Wherein: in going down process, soil is by leading soil hole one
(2) it is discharged to be unearthed pipe (11) outward in entering drill body (501) and leading soil dividing plate (9) entrance screw rod (5) by filtration；
3) on the cushion cap of foundation pile (100), trigger (800) is placed, and by the data circuit group of trigger (800) and cymoscope
(4) data circuit group two connects main frame (400), and before detection, Job readiness completes；
4) first cymoscope is placed in during detection at the bottom of the mouth of pipe or the pipe of protection pipe, on engineering pile, generates machine by exciting hammer (300)
While tool ripple, in test tube, detect vibration signal, analyze the quality of signals collecting, if quality is the best, resampling, otherwise
Preserve the waveform of this measuring point, and one exciting detection week after date the height of cymoscope (4) declined or promotes 0.5-1m,
Continue hammering sampling, till mentioning on cymoscope at the bottom of the mouth of pipe or pipe；
5) main frame (400) output image, by passing judgment on criterion as follows: 1, time m-depth map in the change of first arrival time slope
Change；2, the significantly decay amplitude of energy；I.e. first arrival time and the comprehensive analysis of amplitude to the seismic wave wave train, it is judged that pile body length
And integrity.
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| CN201610648547.1A CN106088170B (en) | 2016-08-09 | 2016-08-09 | The detection means and its detection method of foundation pile length are determined based on parallel seismic wave method |
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| CN201610648547.1A CN106088170B (en) | 2016-08-09 | 2016-08-09 | The detection means and its detection method of foundation pile length are determined based on parallel seismic wave method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108825136A (en) * | 2018-06-09 | 2018-11-16 | 宁波亿诺维信息技术有限公司 | A kind of exploration drill bit and pile measurement device |
| CN108956766A (en) * | 2018-06-09 | 2018-12-07 | 宁波亿诺维信息技术有限公司 | A kind of pile foundation quality detection method |
| CN109252504A (en) * | 2017-07-15 | 2019-01-22 | 浙江新世纪工程检测有限公司 | A kind of the soil detection device and working method of architectural engineering |
| CN110779475A (en) * | 2019-10-16 | 2020-02-11 | 广西电网有限责任公司电力科学研究院 | Method for measuring size of power transmission tower foundation |
| CN111733899A (en) * | 2020-06-18 | 2020-10-02 | 湖北震泰建设工程质量检测有限责任公司 | Real-time safety monitoring method for pile top in static load test process of concrete cast-in-place pile |
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