CN102926370B - Probe for micro static penetrometer - Google Patents
Probe for micro static penetrometer Download PDFInfo
- Publication number
- CN102926370B CN102926370B CN201210458403.1A CN201210458403A CN102926370B CN 102926370 B CN102926370 B CN 102926370B CN 201210458403 A CN201210458403 A CN 201210458403A CN 102926370 B CN102926370 B CN 102926370B
- Authority
- CN
- China
- Prior art keywords
- strain
- barrel
- force
- urceolus
- probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a probe for a micro static penetrometer. An outer barrel is a cylinder with openings at two ends, wherein inner threads are arranged at two ends of the inner barrel wall of the outer barrel; a strain barrel is arranged in an inner cavity of the outer barrel; outer threads which are matched with the inner threads of the inner barrel wall of the outer barrel are arranged on a peripheral surface on one opening end of the strain barrel; a strain sheet is arranged on the barrel wall of the strain barrel; outer threads are arranged on the peripheral surface on the lower end of a force guide rod; a limiting boss is additionally arranged on the peripheral surface of the force guide rod; the upper end of the force guide rod is inserted into the inner cavity of the strain barrel; a inner step hole is arranged in a conical head; the conical head is arranged below the outer barrel; a screw plug is arranged on the lower end of the outer barrel; and the lower surface of the limiting boss of the strain barrel is fixed against the top surface of the screw plug. The probe for the micro static penetrometer provided by the invention has the advantages of reducing weight and size of the static penetrometer, being capable of miniaturizing the penetrometer, being convenient to carry, being capable of greatly improving working efficiency of detection and the like.
Description
Technical field
The present invention relates to a kind of probe for miniature static penetrometer.
Background technology
In electric power transmission engineering construction, all to extract ground related data to by the geotechnical investigation at the electric power transmission engineering services place of building, come for engineering construction service.
There is following feature in transmission line of electricity geotechnical investigation: 1) spatial extent is large: every transmission line of electricity is from several kilometers to kilometers up to a hundred, and spatial extent is large, and job area is wide; 2) setting position is many: transmission line of electricity limits every kilometer according to electric pressure and landform conventionally several base tower positions, and a transmission line of electricity has tens towers up to a hundred positions, and every base tower position need to provide separately foundation soil geotechnical engineering parameter, and workload is large; 3) geotechnical engineering complicated condition a: transmission line of electricity is crossed over multiple topography and geomorphology conventionally, geotechnical engineering condition kind numerous and complicated, every two adjacent exploratory point distance rice at least up to a hundred.4) the field process time relatively short and method is incomplete, especially 220kV and following power transmission engineering, the field operation time cycle is shorter, and rules require every 3～5 base cloths of same landform unit to put an exploratory point, itself lacks certain preciseness.
Geotechnical investigation means mainly contain the methods such as artificial minor thread brill, test pit, static sounding and probing at present, and generaI investigation on a large scale can be used the method for physical prospecting.Behind location, working drawing stage shaft tower position, it is main that geotechnical investigation generally adopts artificial minor thread to bore, and is aided with static sounding and rig probing.Static sounding mainly adopts 2T/3T lightweight static contact-detection machine, and minority adopts 10T static contact-detection machine.Probing is most 30 types, 50 types, 100 type portable engineering drills of adopting.Wherein aspect power circuit, in application, test pit is used for mountain area, 10T static sounding is used for important leap, high load capacity tower, rig probing is used for important leap, high load capacity tower, and other means area that can not complete, this three kinds of application relatively less, with artificial minor thread, bore at present, 2T/3T static sounding is the most extensive.
Artificial minor thread bores light, simple to operate, and soil is described intuitively, and job schedule is relatively very fast, low to site requirements, and 2T/3T static sounding is comparatively light, and objective data is accurate, records continuously soil layer situation of change, and site requirements is relatively low.But this two kinds of exploration meanses or existent defect.
The pattern of carrying out at present overhead wire geotechnical investigation is: with electric, structure, measurement, each specialty of ground, form work group, in route selection, location, carry out geotechnical investigation simultaneously.Senior degree is carried at 5m in general Plain, hillock, terrace, mountain area, therefore mainly take that artificial minor thread bores, is main prospecting means.But there are several drawbacks: the one, do not have objective data to judge foundation soil engineering parameter; The 2nd, although artificial minor thread bores operation construction comparatively fast, can not mate with power overhead network group progress.The 3rd, prospecting depth is limited, needs staff slightly many
The probe of the at present the lightest light static penetrometer of 2T is that the conical surface amasss as 10mm
2, length is about 200mm, needs the three-stage speed change mechanism of a set of complexity, therefore make whole heaviness, needs 4 experienced operators' operations, wastes time and energy.
Summary of the invention
The present invention is the weak point existing in above-mentioned prior art for avoiding, and a kind of probe for miniature static penetrometer is provided, with reduce cone penetrometer volume and weight, make the cone penetrometer can miniaturization.
The present invention is technical solution problem, and a kind of probe for miniature static penetrometer is provided.
For the probe of miniature static penetrometer, its design feature is to comprise urceolus, strain tube, force-guided stem and conehead; Described urceolus is the cylinder of both ends open, and the two ends of the inner tube wall of urceolus are equipped with internal thread, and described strain tube is located among the inner chamber of described urceolus; Described strain tube is one end sealing and the cylinder of other end opening, is provided with the external screw thread that the internal thread with the inner tube wall of urceolus matches on the outer peripheral face of opening one end of described strain tube, is provided with foil gauge on the barrel of described strain tube; Described force-guided stem is cylinder, and the outer peripheral face of the lower end of force-guided stem is provided with external screw thread, is also provided with positive stop lug boss on the outer peripheral face of described force-guided stem; The upper end of described force-guided stem is inserted among the inner chamber of described strain tube, and the thread segment of the lower end of described force-guided stem stretches out in outside described urceolus and described strain tube; Described conehead offers interior shoulder hole, and the lower end of described interior shoulder hole is internal thread hole; Described conehead is located at the below of described urceolus, and the mode that matches with the thread segment of described force-guided stem lower end with its internal thread hole of conehead is fixed on the bottom of force-guided stem; The lower end of described urceolus is provided with plug screw, and the soffit of the positive stop lug boss of described force-guided stem and the end face of described plug screw connect.
Probe for miniature static penetrometer of the present invention also has following technical characterstic.
On the barrel of described strain tube, be also provided with strain compensation sheet.
The barrel of described strain tube is provided with two foil gauges and two strain compensation sheets.
Compared with the prior art, beneficial effect of the present invention is embodied in:
Probe for miniature static penetrometer of the present invention, owing to having adopted the module composition probes such as urceolus, strain tube, force-guided stem plug screw and conehead, foil gauge and strain compensation sheet are set on strain tube, can be by the whole weight and volume miniaturization of probe, and make the static penetrometer can miniaturization, thereby be convenient to survey construction in the wild.During probing, when conehead enters the thrust F that is subject to foundation soil in soil, can conduct to force-guided stem, force-guided stem passes to strain tube by bead, thereby become tensile stress pushing away stress, under action of pulling stress, strain tube barrel generation small strain, this small strain is in strain tube elastic strain range, therefore strain is linear strain, foil gauge can be converted to resistance conversion by this small strain, thereby by instrument solution read record, thereby obtain foundation soil Resistance Value.By such optimization, meet circuit foundation soil parameter request.Consider the durable and abrasion resistance of system, after experiment finishes, for key position, as probe outer wall cylinder, conehead etc., can adopt more wear-resisting alloy material, to improve system application life.
Probe for miniature static penetrometer of the present invention, have can reduce static penetrometer weight and volume, make static penetrometer can miniaturization, easy to carry and can greatly improve the advantages such as operating efficiency of detection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the probe for miniature static penetrometer of the present invention.
Fig. 2 is the structural representation of the urceolus of probe of the present invention.
Fig. 3 is the structural representation of the strain tube of probe of the present invention.
Fig. 4 is the structural representation of the force-guided stem of probe of the present invention.
Fig. 5 is the structural representation of the conehead of probe of the present invention.
Fig. 6 is the structural representation of the plug screw of probe of the present invention.
Label in accompanying drawing 1～accompanying drawing 6: 1 urceolus, 2 strain tubes, 3 force-guided stems, 31 positive stop lug boss, 4 coneheads, 41 interior shoulder holes, 5 plug screws, 6 foil gauges, 7 strain compensation sheets, 8 wires.
Below, by the specific embodiment, the invention will be further described.
The specific embodiment
Participate in Fig. 1～Fig. 6, for the probe of miniature static penetrometer, comprise urceolus 1, strain tube 2, force-guided stem 3 and conehead 4; The cylinder that described urceolus 1 is both ends open, the two ends of the inner tube wall of urceolus 1 are equipped with internal thread, and described strain tube is located among the inner chamber of described urceolus 1; Described strain tube 2 is the cylinder of one end sealing other end opening, is provided with the external screw thread that the internal thread with the inner tube wall of urceolus 1 matches on the outer peripheral face of opening one end of described strain tube 2, is provided with foil gauge 6 on the barrel of described strain tube 2; Described force-guided stem 3 is cylinder, and the outer peripheral face of the lower end of force-guided stem 3 is provided with external screw thread, is also provided with positive stop lug boss 31 on the outer peripheral face of described force-guided stem 3; The upper end of described force-guided stem 3 is inserted among the inner chamber of described strain tube 2, and the thread segment of the lower end of described force-guided stem 3 stretches out in outside described urceolus 1 and described strain tube 2; Described conehead 4 offers interior shoulder hole 41, and the lower end of described interior shoulder hole 41 is internal thread hole; Described conehead 4 is located at the below of described urceolus 1, and the mode that matches with the thread segment of described force-guided stem 3 lower ends with its internal thread hole of conehead 4 is fixed on the bottom of force-guided stem 3; The lower end of described urceolus 1 is provided with plug screw 5, and the soffit of the positive stop lug boss 31 of described force-guided stem 3 and the end face of described plug screw 5 connect.
On the barrel of described strain tube 2, be also provided with strain compensation sheet 7.
The barrel of described strain tube 2 is provided with two foil gauges 6 and two strain compensation sheets 7.
Within strain tube is located at urceolus and be threaded connection with described urceolus and match, the external screw thread of strain tube lower end matches with the internal thread of urceolus bottom, and Open Side Down for strain tube.Force-guided stem the first half stretches in the inner chamber of described strain tube, the part of the latter half is arranged in the inner chamber of urceolus, a part is stretched out outside urceolus, stretch out the thread segment that the part outside urceolus is force-guided stem, this thread segment matches with the internal thread of conehead, make conehead can and force-guided stem between fix.Plug screw screws in the lower end of urceolus, matches with urceolus internal thread bottom.Force-guided stem also passes from plug screw, and the positive stop lug boss of force-guided stem is stuck in the top of plug screw just, and plug screw can avoid force-guided stem to come off from strain tube.The latter half of plug screw is embedded in the hole that the first half diameter of interior shoulder hole of conehead is larger.Foil gauge is attached on the surface of strain tube, for the external pressure of perception conehead and force-guided stem transmission.Through the signal intensity of monitoring foil gauge output, the external pressure size of probe can be detected.
Probe and feeler lever material are selected low-carbon alloy Steel material.The foil gauge of probe is selected BF350 type foil gauge, and its substrate is modified phenolic; Grid silk is constantan (containing 40% nickel, the copper alloy of 1.5% manganese); Full-closed structure; Can realize temperature self-compensation and creep self compensation simultaneously.Foil gauge is four bridge designs, be attached on strain tube, be used for the minor variations of monitor strain cylinder, wherein two is strain transducer, two is parametric compensation sheet, because strain tube diameter is only 5.4mm, therefore select strain transducer flat opposed, parametric compensation sheet flat opposed, and two groups be placed in adjacent horizontal level.Probe inside conductor 8 adopts 0.2mm wear resistant paint envelope curves, by wire 8, foil gauge is connected with master controller or the main frame of cone penetrometer with strain compensation sheet, by the signal intensity of master controller or Host Detection foil gauge and process and display.
During probing, when conehead enters the thrust F that is subject to foundation soil in soil, can conduct to force-guided stem, force-guided stem passes to strain tube by bead, thereby become tensile stress pushing away stress, under action of pulling stress, strain tube barrel generation small strain, this small strain is in strain tube elastic strain range, therefore strain is linear strain, foil gauge can be converted to resistance conversion by this small strain, thereby by instrument solution read record, thereby obtain foundation soil Resistance Value.By such optimization, meet circuit foundation soil parameter request.Consider the durable and abrasion resistance of system, after experiment finishes, for key position, as probe outer wall cylinder, conehead etc., can adopt more wear-resisting alloy material, to improve system application life.
The probe of miniaturization of the present invention, has abandoned traditional probe clumsy, and depth of exploration can meet most circuit prospectings, therefore can greatly increase work efficiency.The sounding device that consists of this miniature static sounding probe is portable, quick, quantification of targets, except can be used for the geotechnical investigation of overhead wire, at other numerous areas, also has extensive, important purposes.
The probe of miniaturization of the present invention, can be used for the following aspects: 1) with the geotechnical investigation of the engineering such as the similar cable of power overhead network, optical cable, underground utilities; 2) there are the unfavorable geology effects such as the obviously dark pool, covered conduit, shallow-layer weak intercalated layer in building district, to be used for investigating thoroughly its distribution, and development condition; 3), while needing probing, trenching, as supplementary means, provide quantized data support; 4) test slot of foundation is more directly perceived, judges accurately foundation ditch foundation soil situation.
Claims (3)
1. for the probe of miniature static penetrometer, it is characterized in that, comprise urceolus (1), strain tube (2), force-guided stem (3) and conehead (4); The cylinder that described urceolus (1) is both ends open, the two ends of the inner tube wall of urceolus (1) are equipped with internal thread, and described strain tube is located among the inner chamber of described urceolus (1); Described strain tube (2) is the cylinder of one end sealing other end opening, on the outer peripheral face of opening one end of described strain tube (2), be provided with the external screw thread that the internal thread with the inner tube wall of urceolus (1) matches, on the barrel of described strain tube (2), be provided with foil gauge (6); Described force-guided stem (3) is cylinder, and the outer peripheral face of the lower end of force-guided stem (3) is provided with external screw thread, is also provided with positive stop lug boss (31) on the outer peripheral face of described force-guided stem (3); The upper end of described force-guided stem (3) is inserted among the inner chamber of described strain tube (2), and the thread segment of the lower end of described force-guided stem (3) stretches out in outside described urceolus (1) and described strain tube (2); Described conehead (4) offers interior shoulder hole (41), and the lower end of described interior shoulder hole (41) is internal thread hole;
Described conehead (4) is located at the below of described urceolus (1), and the mode that matches with the thread segment of described force-guided stem (3) lower end with its internal thread hole of conehead (4) is fixed on the bottom of force-guided stem (3); The lower end of described urceolus (1) is provided with plug screw (5), and the soffit of the positive stop lug boss (31) of described force-guided stem (3) and the end face of described plug screw (5) connect.
2. the probe for miniature static penetrometer according to claim 1, is characterized in that, is also provided with strain compensation sheet (7) on the barrel of described strain tube (2).
3. the probe for miniature static penetrometer according to claim 2, is characterized in that, the barrel of described strain tube (2) is provided with two foil gauges (6) and two strain compensation sheets (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458403.1A CN102926370B (en) | 2012-11-14 | 2012-11-14 | Probe for micro static penetrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458403.1A CN102926370B (en) | 2012-11-14 | 2012-11-14 | Probe for micro static penetrometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926370A CN102926370A (en) | 2013-02-13 |
| CN102926370B true CN102926370B (en) | 2014-11-05 |
Family
ID=47641287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210458403.1A Active CN102926370B (en) | 2012-11-14 | 2012-11-14 | Probe for micro static penetrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102926370B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403336B (en) * | 2015-12-16 | 2018-06-12 | 东南大学 | A kind of miniature full-bridge feeler inspection probe |
| CN108318326B (en) * | 2018-01-19 | 2020-11-20 | 浙江大学 | Miniature static sounding probe rod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0010988A1 (en) * | 1978-11-06 | 1980-05-14 | MacGregor, John Stuart | Electrical friction sleeve cone penetrometer |
| CN201605569U (en) * | 2010-02-01 | 2010-10-13 | 陈怀峰 | Dual-bridge static sounding large-range probe head |
| CN102174808A (en) * | 2011-02-24 | 2011-09-07 | 中国地质大学（武汉） | Piezocone penetration test (CPTU) prober of dual-deformed column |
| CN202039338U (en) * | 2011-04-28 | 2011-11-16 | 温岭市迪信勘察仪器有限公司 | Integrated non-joint static sounding feeler lever |
| CN202247832U (en) * | 2011-09-05 | 2012-05-30 | 中铁第四勘察设计院集团有限公司 | Portable sounding machine |
| CN202850010U (en) * | 2012-11-14 | 2013-04-03 | 安徽华电工程咨询设计有限公司 | Probe head for miniature static penetrometer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2961607B1 (en) * | 1998-08-07 | 1999-10-12 | 鹿島建設株式会社 | Penetration sensor for cone penetration test |
-
2012
- 2012-11-14 CN CN201210458403.1A patent/CN102926370B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0010988A1 (en) * | 1978-11-06 | 1980-05-14 | MacGregor, John Stuart | Electrical friction sleeve cone penetrometer |
| CN201605569U (en) * | 2010-02-01 | 2010-10-13 | 陈怀峰 | Dual-bridge static sounding large-range probe head |
| CN102174808A (en) * | 2011-02-24 | 2011-09-07 | 中国地质大学（武汉） | Piezocone penetration test (CPTU) prober of dual-deformed column |
| CN202039338U (en) * | 2011-04-28 | 2011-11-16 | 温岭市迪信勘察仪器有限公司 | Integrated non-joint static sounding feeler lever |
| CN202247832U (en) * | 2011-09-05 | 2012-05-30 | 中铁第四勘察设计院集团有限公司 | Portable sounding machine |
| CN202850010U (en) * | 2012-11-14 | 2013-04-03 | 安徽华电工程咨询设计有限公司 | Probe head for miniature static penetrometer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102926370A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102900064B (en) | Micro static force penetrometer | |
| CN106546366B (en) | A kind of umbellate form deep hole three-dimensional stress and displacement comprehensive test device | |
| CN202850009U (en) | Micro static penetrometer | |
| CN105806697B (en) | It is a kind of to simulate experimental rig and its method that tunnel excavation influences periphery pipeline | |
| CN201843152U (en) | Simulation tester for construction and monitoring of deep foundation pit engineering | |
| CN103499268B (en) | The space relative deformation measurement mechanism of dish and lower wall in a kind of in-situ rock joint plane | |
| CN104166068B (en) | Power system steel-cored aluminium strand failure analysis method | |
| CN104142388B (en) | Original position static(al) press-in test method in boring | |
| CN102839693B (en) | Increase resistive shape anchor pole/anchorage cable anchoring quality monitoring device and application process | |
| CN105318824B (en) | A kind of method that wall rock loosening ring is measured based on distributed resistance foil gauge | |
| CN101761062A (en) | Wireless rotating penetrometer | |
| CN202610786U (en) | Electrical logging type pulling-rope soil layer sedimentation detector | |
| CN202866844U (en) | Resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device | |
| CN107130651B (en) | The detection device and its detection method of anchor pole internal force exterior measuring | |
| CN103321201B (en) | Sealed liquid pressure reduction delaminating deposition takes into account that it is buried underground, measuring method | |
| CN105258765A (en) | Dam body hydrostatic level in situ automatic monitoring system and method | |
| CN102278948B (en) | Compound optical fiber sensing monitoring system and method based on optical fiber compound sensing module | |
| CN105698754A (en) | FBG (fiber bragg grating) sensor based on transformer substation settlement measurement | |
| CN104501772B (en) | Hydro-structure soil stone calmodulin binding domain CaM non-uniform settling combination monitoring device and method | |
| CN102926370B (en) | Probe for micro static penetrometer | |
| CN204536237U (en) | A kind of Freezing Soils hydro-thermal power comprehensive test system | |
| CN202850010U (en) | Probe head for miniature static penetrometer | |
| CN113176337B (en) | In-situ monitoring method, testing system and testing equipment for rigidity of soil body around pile | |
| CN208238763U (en) | A kind of device for real-time measurement soil body deeply mixing cement-soil pile and surface settlement | |
| CN104501732A (en) | Device and method for hydraulic structure deformation distribution type optical fiber monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |