CN106759216A - A kind of penetrometer and its measuring method for having dynamic sounding and static sounding concurrently - Google Patents
A kind of penetrometer and its measuring method for having dynamic sounding and static sounding concurrently Download PDFInfo
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- CN106759216A CN106759216A CN201611122044.7A CN201611122044A CN106759216A CN 106759216 A CN106759216 A CN 106759216A CN 201611122044 A CN201611122044 A CN 201611122044A CN 106759216 A CN106759216 A CN 106759216A
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- feeler lever
- sounding
- interior
- penetrometer
- static
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of penetrometer for having dynamic sounding and static sounding concurrently, including outer feeler lever, interior feeler lever, bridge box, data collecting instrument, computer, the outer feeler lever is wrapped in interior feeler lever outside, and contacted with the outer wall slidingtype of interior feeler lever, and there is the interior feeler lever epitaxial part not wrapped up by outer feeler lever interior feeler lever upper end, the bottom of interior feeler lever is provided with a miniature cone, the cone sensor that miniature cone includes the friction cylinder being connected with interior feeler lever bottom, the side friction force snesor being arranged on the inside of friction cylinder, is arranged at friction cylinder bottom；The side friction force snesor, static point resistance sensor are connected by cable with bridge box, and bridge box is connected with data collecting instrument, and data collecting instrument is connected with computer.The present invention solves the problems such as traditional railway track structure safe design tester is heavy, and disturbance is big, required complementary conditions are difficult, test is inaccurate.
Description
Technical field
Touched with static(al) the present invention relates to a kind of dynamic sounding that has concurrently for railroad track path partition soil body mechanical characteristic
The new penetrometer visited, one kind has power and static sounding device concurrently in belonging to Geotechnical Engineering railway bed testing field.
Background technology
Railway transportation is with the advantages such as its safety, economy, broad covered area, the main flow as communications and transportation future, railway transportation
Technology also further accelerates development with propulsion.Larger wheel load, lateral pressure, powerful tractive force and Braking are in tradition
Railway line on, this will trigger the destruction of track structure, and serious infringement is caused to passenger.So for railway track structure
Assessment be particularly important.
Some lossless detection methods such as application GPR (GPR), is evaluated ballast layer, although GPR
(GPR) it is cost effective, with little time in wide area, but the strength characteristics of railway track structure cannot be commented
Valency.Light-duty FWD (LFWD) and plate-bearing test (PBT) can be applied to railway track structure and carry out static and dynamic
Load test, but unique defect is when these methods are applied to roadbed, it is necessary to remove ballast layer.In-situ test is for example quiet
Power cone penetration test (CPT), lateral loading test (PMT), vane shear test (VST), standard penetration test (SPT) (SPT) etc. are big due to its
Diameter feeler lever and drive link, great interference is caused to railway track structure.
The content of the invention
It is an object of the invention to provide a kind of penetrometer for having dynamic sounding and static sounding concurrently, to solve traditional railway
Track structure safe design tester is heavy, and disturbance is big, and required complementary conditions are difficult, the problems such as test inaccurate.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of penetrometer for having dynamic sounding and static sounding concurrently, including outer feeler lever, interior feeler lever, bridge box, data acquisition
Instrument, computer, the outer feeler lever are wrapped in interior feeler lever outside, and are contacted with the outer wall slidingtype of interior feeler lever, and interior feeler lever upper end has
The interior feeler lever epitaxial part not wrapped up by outer feeler lever, the bottom of interior feeler lever is provided with a miniature cone, and miniature cone includes and interior spy
Friction cylinder, the side friction force snesor being arranged on the inside of friction cylinder, the cone that is arranged at friction cylinder bottom of bar bottom connection
Sensor；The side friction force snesor, static point resistance sensor are connected by cable with bridge box, bridge box and data
Acquisition Instrument is connected, and data collecting instrument is connected with computer.
The cross-sectional diameter of the miniature cone is 15mm-25mm.
The side friction force snesor, static point resistance sensor are connected by four stress gauges full-bridge.
It is a further object to provide a kind of based on the above-mentioned penetrometer for having dynamic sounding and static sounding concurrently
Measuring method, technical scheme is as follows：
A kind of measuring method based on the above-mentioned penetrometer for having dynamic sounding and static sounding concurrently, comprises the following steps：
The first step：A vertically-guided device is installed on the railway roadbed of roadbed for needing measurement, for ensuring penetrometer
The perpendicularity of inside and outside feeler lever；
Second step：Described penetrometer is arranged in the middle of vertically-guided device, will drop hammer the top that is connected to penetrometer,
Dynamic sounding process is carried out, outer feeler lever and interior feeler lever are coupled, while injection railway roadbed；By the record of blow counts and depth of penetration come
Obtain dynamic driving index；
3rd step：After the complete railway roadbed bottom of dynamic sounding, will drop hammer and the removal of vertically-guided device, in interior feeler lever epitaxy part
Divide and an injection shell is installed, carry out static sounding process；
4th step：Interior feeler lever injection roadbed, during static sounding, measures penetration resistance.
In second step, dynamic driving drops hammer weight for 110-120N, and height of drop is 570-590mm.
In 4th step, interior feeler lever is with 1-2mm/s speed at the uniform velocity injection roadbed.
In 4th step, the penetration resistance for measuring includes the side friction power fs that the test of side friction force snesor is obtained, cone
The static point resistance qc that sharp resistive force sensor test is obtained.
Beneficial effect：The present invention solves traditional railway track structure safe design tester heaviness, and disturbance is big, institute
The problems such as complementary conditions are difficult, and test is inaccurate is needed, the new penetrometer simple structure, quality control are good, and repeatability is high, tool
Have an original position, multi-functional, automation, it is quick the features such as, it is adaptable to the dynamic test in situ of the soil layer of various different geology, especially
Railroad track underground structure, can the various soil layers of in-situ test parameter, can fast and effeciently determine the work of railroad track roadbed
Journey mechanical characteristic, for civil engineering exploration practices, especially railway track structure provides strong testing tool.
Brief description of the drawings
Fig. 1 is the structural representation of penetrometer of the invention；
Fig. 2 is vertically-guided schematic device of dropping hammer；
Fig. 3 is dynamic sounding device schematic diagram；
Fig. 4 is installation injection housing apparatus schematic diagram before static sounding；
Fig. 5 is static sounding device schematic diagram；
In figure：1- cables, feeler lever epitaxial part in 2-, the outer feeler levers of 2-, feeler lever in 4-, the miniature cones of 5-, 6- side friction power
Sensor, 7- friction cylinders, 8- static point resistance sensors, 9- bridge boxs, 10- data collecting instruments, 11- computers, 12- vertically-guideds dress
Put, 13- sleepers, 14- railway roadbeds, 15- roadbeds, 16- drops hammer, 17- injection shells, 18- counterforce devices.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of penetrometer for having dynamic sounding and static sounding concurrently of the invention, including outer feeler lever 3, interior spy
Bar 4, bridge box 9, data collecting instrument 10, computer 11, outer feeler lever 3 are wrapped in the outside of interior feeler lever 4, and are slided with the outer wall of interior feeler lever 4
Dynamic formula is contacted, and there is the interior feeler lever epitaxial part 2 not wrapped up by outer feeler lever 3 upper end of interior feeler lever 4, and the bottom of interior feeler lever 4 is provided with
One miniature cone 5, miniature cone 5 includes the friction cylinder 7 being connected with the bottom of interior feeler lever 4, is arranged at the side friction of the inner side of friction cylinder 7
Force snesor 6, the cone sensor 8 for being arranged at the bottom of friction cylinder 7；The side friction force snesor 6, static point resistance sensor
8 are connected by cable 1 with bridge box 9, and bridge box 9 is connected with data collecting instrument 10, and data collecting instrument 10 is connected with computer 11.
Wherein, outer feeler lever 3 is used for dynamic driving railway roadbed, and miniature cone 5 is used for static(al) penetration sounding roadbed.Outer feeler lever and interior spy
When bar is not coupled, the interior independent injection of feeler lever carries out static sounding, and injection speed is 1-2mm/s；Outer feeler lever and interior feeler lever coupling
During conjunction, outer feeler lever and interior feeler lever are while injection, carries out dynamic sounding.
The cross-sectional diameter of miniature cone 5 is 15mm-25mm.
Side friction force snesor 6 is used to test side friction power fs, and static point resistance sensor 8 is used to test static point resistance
Qc, they, to bridge box, finally measure its value by cable connection.Side friction force snesor 6, static point resistance sensor 8 are equal
Connected by four stress gauges full-bridge and tested.
Railway track structure is measured using above-mentioned penetrometer, is comprised the following steps that：
A kind of measuring method based on the penetrometer for having dynamic sounding and static sounding concurrently stated, comprises the following steps：
The first step：A vertically-guided device 12 is installed on the railway roadbed of roadbed for needing measurement, for ensuring penetrometer
Feeler lever perpendicularity；As shown in Figure 2；
Second step：Described penetrometer is arranged in the middle of vertically-guided device 12, the top of the 16 connection penetrometers that drop hammer
Portion, carries out dynamic sounding process, as shown in figure 3, during this, outer feeler lever and interior feeler lever are coupled, injection railway roadbed；By blow counts
Dynamic driving index is obtained with the record of depth of penetration；
Wherein, dynamic driving drops hammer weight for 110-120N, and height of drop is 570-590mm；
3rd step：After the complete railway roadbed bottom of dynamic sounding, will drop hammer 16 removes with vertically-guided device 12, outside interior feeler lever
Prolong part 2 and an injection shell 17 is installed, injection shell 17 is installed on counterforce device 18, as shown in figure 4, carrying out static sounding mistake
Journey；
4th step：During static sounding, interior feeler lever measures injection with 1-2mm/s speed at the uniform velocity injection roadbed, such as Fig. 5
Resistance, including the side friction power fs that the test of side friction force snesor is obtained, the cone that static point resistance sensor test is obtained
Resistance qc.
The test device retains and improves the function of feeler inspection powered by conventional energy, makes it have the function of static sounding, can root
Dynamic sounding is carried out according to soil layer, the regulation of static sounding is used, solve traditional railway track structure safe design tester
Device is heavy, and disturbance is big, and required complementary conditions are difficult, the problems such as test inaccurate, new penetrometer simple structure, the quality control
Well, repeatability is high, with original position, multi-functional, automation, it is quick the features such as, it is adaptable to the original of the soil layer of various different geology
Position dynamic test, especially railroad track underground structure, can the various soil layers of in-situ test parameter, can fast and effeciently determine
The engineering mechanical properties of railroad track roadbed, for civil engineering exploration practices, especially railway track structure provides strong test
Instrument.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of penetrometer for having dynamic sounding and static sounding concurrently, it is characterised in that：Including outer feeler lever (3), interior feeler lever (4),
Bridge box (9), data collecting instrument (10), computer (11), the outer feeler lever (3) be wrapped in interior feeler lever (4) outside, and with interior feeler lever
(4) outer wall slidingtype contact, and there is the interior feeler lever epitaxial part (2) do not wrapped up by outer feeler lever (3) interior feeler lever (4) upper end, it is interior
The bottom of feeler lever (4) is provided with a miniature cone (5), miniature cone (5) including be connected with interior feeler lever (4) bottom friction cylinder (7),
It is arranged at the side friction force snesor (6) on the inside of friction cylinder (7), is arranged at the cone sensor (8) of friction cylinder (7) bottom；
The side friction force snesor (6), static point resistance sensor (8) are connected by cable (1) with bridge box (9), bridge box
(9) it is connected with data collecting instrument (10), data collecting instrument (10) is connected with computer (11).
2. the penetrometer for having dynamic sounding and static sounding concurrently according to claim 1, it is characterised in that：The miniature cone
(5) cross-sectional diameter is 15mm-25mm.
3. the penetrometer for having dynamic sounding and static sounding concurrently according to claim 1, it is characterised in that：The side wall rubs
Resistive force sensor (6), static point resistance sensor (8) are connected by four stress gauges full-bridge.
4. a kind of based on any described measuring methods for having dynamic sounding and the penetrometer of static sounding concurrently of claim 1-3,
It is characterized in that：Comprise the following steps：
The first step：A vertically-guided device is installed on the railway roadbed of roadbed for needing measurement, for ensuring inside and outside penetrometer
The perpendicularity of feeler lever；
Second step：Described penetrometer is arranged in the middle of vertically-guided device, will drop hammer the top that is connected to penetrometer, carry out
Dynamic sounding process, outer feeler lever and interior feeler lever are coupled, while injection railway roadbed；Obtained with the record of depth of penetration by blow counts
Dynamic driving index；
3rd step：After the complete railway roadbed bottom of dynamic sounding, will drop hammer and the removal of vertically-guided device, in interior feeler lever epitaxial part peace
An injection shell is filled, static sounding process is carried out；
4th step：Interior feeler lever injection roadbed, during static sounding, measures penetration resistance.
5. measuring method according to claim 4, it is characterised in that：In second step, dynamic driving drops hammer weight for 110-
120N, height of drop is 570-590mm.
6. measuring method according to claim 4, it is characterised in that：In 4th step, interior feeler lever with 1-2mm/s speed at the uniform velocity
Injection roadbed.
7. measuring method according to claim 4, it is characterised in that：In 4th step, the penetration resistance for measuring includes side wall
The side friction power fs that frictional resistance sensor test is obtained, the static point resistance qc that static point resistance sensor test is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122044.7A CN106759216B (en) | 2016-12-08 | 2016-12-08 | A kind of penetrometer and its measurement method having both dynamic sounding and static sounding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122044.7A CN106759216B (en) | 2016-12-08 | 2016-12-08 | A kind of penetrometer and its measurement method having both dynamic sounding and static sounding |
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| Publication Number | Publication Date |
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| CN106759216A true CN106759216A (en) | 2017-05-31 |
| CN106759216B CN106759216B (en) | 2018-08-17 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107907597A (en) * | 2017-11-27 | 2018-04-13 | 山东大学 | A kind of penetration type ultrasonic wave soil moisture content test device and method |
| CN109799144A (en) * | 2019-03-08 | 2019-05-24 | 曹增国 | A kind of rock-soil layer original position side compression testing device and method |
| CN109839317A (en) * | 2019-03-13 | 2019-06-04 | 大连理工大学 | A kind of micro indoor static cone penetration test system and method |
| CN110359441A (en) * | 2019-06-20 | 2019-10-22 | 东南大学 | Wireless hole pressure touching methods test macro based on sonic transmissions |
| CN111766364A (en) * | 2019-04-02 | 2020-10-13 | 中国地震局工程力学研究所 | Hidden sensor for in-situ experiment and embedding method thereof |
| CN112160307A (en) * | 2020-10-19 | 2021-01-01 | 河南城建学院 | Rock-soil sampling layout and data analysis system based on multivariate sampling attribute analysis |
| CN113737764A (en) * | 2021-09-02 | 2021-12-03 | 中铁时代建筑设计院有限公司 | Static sounding device and static sounding method |
| CN115078694A (en) * | 2022-06-28 | 2022-09-20 | 大连理工大学 | Rotary type soil and structure interface mechanical property test device and method |
| CN115928689A (en) * | 2023-01-18 | 2023-04-07 | 中国科学院力学研究所 | Free fall formula dynamic sounding appearance |
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Cited By (13)
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| CN107907597B (en) * | 2017-11-27 | 2024-03-15 | 山东大学 | Device and method for testing water content of penetrating ultrasonic soil body |
| CN107907597A (en) * | 2017-11-27 | 2018-04-13 | 山东大学 | A kind of penetration type ultrasonic wave soil moisture content test device and method |
| CN109799144A (en) * | 2019-03-08 | 2019-05-24 | 曹增国 | A kind of rock-soil layer original position side compression testing device and method |
| CN109839317A (en) * | 2019-03-13 | 2019-06-04 | 大连理工大学 | A kind of micro indoor static cone penetration test system and method |
| CN111766364A (en) * | 2019-04-02 | 2020-10-13 | 中国地震局工程力学研究所 | Hidden sensor for in-situ experiment and embedding method thereof |
| CN110359441A (en) * | 2019-06-20 | 2019-10-22 | 东南大学 | Wireless hole pressure touching methods test macro based on sonic transmissions |
| CN112160307A (en) * | 2020-10-19 | 2021-01-01 | 河南城建学院 | Rock-soil sampling layout and data analysis system based on multivariate sampling attribute analysis |
| CN113737764A (en) * | 2021-09-02 | 2021-12-03 | 中铁时代建筑设计院有限公司 | Static sounding device and static sounding method |
| CN113737764B (en) * | 2021-09-02 | 2023-04-14 | 中铁时代建筑设计院有限公司 | Static sounding device and static sounding method |
| CN115078694B (en) * | 2022-06-28 | 2023-11-24 | 大连理工大学 | Rotary soil and structure interface mechanical property test device and method |
| CN115078694A (en) * | 2022-06-28 | 2022-09-20 | 大连理工大学 | Rotary type soil and structure interface mechanical property test device and method |
| CN115928689A (en) * | 2023-01-18 | 2023-04-07 | 中国科学院力学研究所 | Free fall formula dynamic sounding appearance |
| CN115928689B (en) * | 2023-01-18 | 2024-06-04 | 中国科学院力学研究所 | Free falling body type dynamic sounding instrument |
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| CN106759216B (en) | 2018-08-17 |
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