CN205157556U - Soil body frozen -heave factor and melting sinks coefficient and jointly surveys test instrument - Google Patents
Soil body frozen -heave factor and melting sinks coefficient and jointly surveys test instrument Download PDFInfo
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- CN205157556U CN205157556U CN201520988147.6U CN201520988147U CN205157556U CN 205157556 U CN205157556 U CN 205157556U CN 201520988147 U CN201520988147 U CN 201520988147U CN 205157556 U CN205157556 U CN 205157556U
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- soil body
- cylinder
- test instrument
- temperature
- simultaneous determination
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- 239000002689 soil Substances 0.000 title claims abstract description 129
- 238000002844 melting Methods 0.000 title abstract 2
- 230000008018 melting Effects 0.000 title abstract 2
- 238000006073 displacement reaction Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 5
- 230000003020 moisturizing effect Effects 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 4
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 4
- 241001330002 Bambuseae Species 0.000 abstract 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 4
- 239000011425 bamboo Substances 0.000 abstract 4
- 238000013480 data collection Methods 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
- 238000009835 boiling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model discloses a soil body frozen -heave factor and melting sinks coefficient and jointly surveys test instrument, a section of thick bamboo is loaded to the soil body that link up including both ends, and the both ends that a section of thick bamboo was loaded to the soil body are provided with top cap and bottom plate respectively, and top cap and bottom plate through alternate set up on the two the threaded rod and with the fastening of threaded rod complex nut, the soil body is loaded to be connected with on the section of thick bamboo and is used for making the soil body to be in the low -temperature constant -temperature system of low -temperature constant -temperature state, is equipped with the displacement sensor who is used for detecting the land movement on the top cap, the soil body is loaded on the section of thick bamboo still the interlude and is equipped with a plurality of temperature and humidity sensor that are used for detecting soil body moisture and temperature, displacement sensor and temperature and humidity sensor be connected to the main control computer through displacement data collection station and moisture moisture recorder respectively. The utility model discloses can have or not the water source to supply the frozen -heave factor under two kinds of conditions and melt heavy coefficient by the simultaneous determination soil body, but also can survey the soil body in change of the temperature gradient of frozen swelling in -process and moisture movement.
Description
Technical field
The utility model belongs to soil mass property field tests, is specifically related to a kind of body frost heaving rate and thaw collapse coefficient simultaneous determination test instrument.
Background technology
Road frost boiling phenomenon is the distinctive phenomenon in seasonal frozen soil region, is one of highway most commonly encountered diseases evil, and the frequency range of generation is all very large, and impact is comparatively serious, and frost heave is the main cause that frost boiling occurs, and the frost heave frozen-heave factor of the soil body characterizes.
But current soil mass property test has following defect, one, the test of domestic frozen-heave factor separates with thaw collapse ratio test and do, waste time and energy; Two, conventional method is applicable to clayey soil and sand soil, and for clayey soil and sand soil, sample box can use the organic glass cylinder of external diameter 120mm, wall thickness 10mm, high 100mm as sidewall, but for a bit little the larger soil of particle diameter; Three, conventional frozen-heave factor test does not measure the moisture change of soil sample vertical direction, and the temperature variation of the soil sample differing heights just measured, can not illustrate the water translocation phenomenon produced due to thermograde in Freezing Soils.
Utility model content
The purpose of this utility model is to provide a kind of body frost heaving rate and thaw collapse coefficient simultaneous determination test instrument, to overcome the defect that above-mentioned prior art exists, the utility model can the Simultaneously test soil body at the frozen-heave factor supplemented with or without water source under two kinds of conditions and thaw collapse coefficient, but also the thermograde change of the soil body in process of frost heave can be measured change with moisture, the Transport that moisture changes with thermograde can be described.
For achieving the above object, the utility model adopts following technical scheme:
Body frost heaving rate and thaw collapse coefficient simultaneous determination test instrument, comprise the through soil body in two ends and load cylinder, the two ends that the soil body loads cylinder are respectively arranged with top cover and base plate, and top cover and base plate are arranged on the threaded rod on the two and the fastening nuts with shaft by interting, soil body filling cylinder is connected with the cryogenic thermostat system for making the soil body be in cryogenic thermostat state, top cover is provided with the displacement transducer for detecting land movement, soil body filling cylinder also interts and is provided with some Temperature Humidity Sensors for detecting soil body moisture and temperature, described displacement transducer and Temperature Humidity Sensor are connected to main control computer respectively by displacement data collector and moisture moisture recorder.
Further, cryogenic thermostat system comprises to be loaded the cooling pipe inside cylinder around being arranged on the soil body and being arranged on the low temperature thermostat bath outside soil body filling cylinder, and inlet end and the endpiece of cooling pipe are connected to endpiece and the inlet end of low temperature thermostat bath by connecting pipe.
Further, it is organic glass cylinder that the soil body loads cylinder, and cooling pipe is copper pipe, and connecting pipe is rubber tube.
Further, top cover is provided with the groove loaded outer, cylinder top with the soil body and match, and base plate is provided with the groove loaded outer, cylinder bottom with the soil body and match, and is provided with the preformed hole for hitting the real soil body inside the groove on top cover.
Further, inside the groove on base plate, be provided with some water seepage holes, and the downside of base plate is provided with for the bucket for soil body moisturizing.
Further, top cover and base plate are loaded cylinder by two threaded rods and the soil body and are tightened together, and two threaded rods are symmetrically distributed in outside soil body filling cylinder.
Further, the top of threaded rod is fixed with crossbeam, and the upper end of displacement transducer is fixed on crossbeam by pressing plate, and lower end contacts with the baffle plate be arranged on the upside of the soil body through top cover.
Further, Temperature Humidity Sensor is loaded the axis of cylinder along the soil body and is arranged to row, and Temperature Humidity Sensor interts along the radial direction that the soil body loads cylinder and is arranged in the soil body.
Further, the outside of soil body filling cylinder is provided with heat-preservation cotton.
Further, it is cylindrical that the soil body loads cylinder, and its diameter is 30cm, and height is 90cm, and wall thickness is 1.5cm.
Compared with prior art, the utility model has following useful technique effect:
The utility model adopts the soil body to load cylinder and loads soil, adopt top cover and base plate and threaded rod and nut to load cylinder to the soil body to fix, cryogenic thermostat system is adopted to ensure the cryogenic thermostat state of the soil body, displacement transducer and Temperature Humidity Sensor is adopted to detect displacement data and the humiture data of the soil body, main control computer by survey data and can calculate body frost heaving rate and thaw collapse coefficient, the utility model can the Simultaneously test soil body at the frozen-heave factor supplemented with or without water source under two kinds of conditions and thaw collapse coefficient, easy to use, structure is simple.
Further, cryogenic thermostat system comprises to be loaded the cooling pipe inside cylinder around being arranged on the soil body and being arranged on the low temperature thermostat bath outside soil body filling cylinder, in low temperature thermostat bath, can Low Temperature Liquid be set, through cooling pipe, cryogenic thermostat process be carried out to the soil body, ensure that test condition.
Further, top cover and base plate are provided with the groove loaded cylinder two ends with the soil body and coordinate, and connect more fastening, are provided with preformed hole inside the groove in addition on top cover, can adopt the real soil body of standard impact density hammering, improve accuracy of detection after loading the soil body.
Further, inside the groove on base plate, be provided with some water seepage holes, and the downside of base plate is provided with for the bucket for soil body moisturizing, the soil body can be measured at the frozen-heave factor had under water source supplementary condition and thaw collapse coefficient.
Further, displacement transducer is fixed by the crossbeam be arranged on threaded rod, avoid displacement transducer self and move the error caused.
Further, the axis that Temperature Humidity Sensor loads cylinder along the soil body is arranged to row, and Temperature Humidity Sensor along the soil body load cylinder radial direction intert be arranged in the soil body, the thermograde change of the soil body in process of frost heave can be measured change with moisture, the Transport that moisture changes with thermograde is described.
Further, the outside that the soil body loads cylinder is provided with heat-preservation cotton, can effectively ensure soil body cryogenic thermostat.
Further, it is cylindrical that the soil body loads cylinder, and its diameter is 30cm, and height is 90cm, and wall thickness is 1.5cm, is applicable to the larger soil of particle diameter as tested object.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 (a) is the assembling front view that the soil body of the present utility model loads cylinder;
Fig. 2 (b) is the assembling side elevation that the soil body of the present utility model loads cylinder;
Fig. 2 (c) is the assembling vertical view that the soil body of the present utility model loads cylinder;
Fig. 3 (a) is the structural front view of base plate of the present utility model;
Fig. 3 (b) is the structure side view of base plate of the present utility model;
Fig. 3 (c) is the structure vertical view of base plate of the present utility model.
Wherein, 1-displacement data collector; 2-main control computer; 3-moisture moisture recorder; 4-displacement transducer; 5-nut; 6-lowers the temperature pipe; 7-threaded rod; 8-Temperature Humidity Sensor; 9-crossbeam; 10-top cover; 11-connecting pipe; The 12-soil body loads cylinder; 13-heat-preservation cotton; 14-bucket; 15-base plate; 16-low temperature thermostat bath.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
See Fig. 1, Fig. 2 (a) ~ Fig. 2 (c) and Fig. 3 (a) ~ Fig. 3 (c), a kind of body frost heaving rate and thaw collapse coefficient simultaneous determination test instrument, comprise the through soil body in two ends and load cylinder 12, it is columniform organic glass cylinder that the soil body loads cylinder 12, its diameter is 30cm, height is 90cm, wall thickness is 1.5cm, the two ends that the soil body loads cylinder 12 are respectively arranged with top cover 10 and base plate 15, the both sides of top cover 10 and base plate 15 are equipped with handle, top cover 10 and base plate 15 are respectively equipped with the groove loaded cylinder 12 top and outer, bottom with the soil body and match, the preformed hole for hitting the real soil body is provided with inside groove on top cover 10, can prevent from the soil body from loading on cylinder 12 when hitting the real soil body to move, and top cover 10 and base plate 15 follow the soil body to load cylinder 12 to tighten together by interting two threaded rods 7 be arranged on the two and the nut coordinated with threaded rod 75, and two threaded rods 7 are symmetrically distributed in outside soil body filling cylinder 12.
Top cover 10 is provided with the displacement transducer 4 for detecting land movement, the top of threaded rod 7 is fixed with crossbeam 9, the upper end of displacement transducer 4 is fixed on crossbeam 9 by pressing plate, lower end is arranged in the soil body by top cover 10 is interspersed, soil body filling cylinder 12 is connected with the cryogenic thermostat system for making the soil body be in cryogenic thermostat state, cryogenic thermostat system comprises to be loaded the copper cooling pipe 6 inside cylinder 12 around being arranged on the soil body and being arranged on the low temperature thermostat bath 16 outside soil body filling cylinder 12, inlet end and the endpiece of cooling pipe 6 are connected to endpiece and the inlet end of low temperature thermostat bath 16 by the connecting pipe 11 of quality of rubber materials, the outside that the soil body loads cylinder 12 and connecting pipe 11 is equipped with heat-preservation cotton 13, the both sides of soil body filling cylinder 12 are also interted vertically and is provided with some Temperature Humidity Sensors 8 for detecting soil body moisture and temperature, and Temperature Humidity Sensor 8 loads contacting with the organic glass baffle plate be arranged on the upside of the soil body radially across top cover 10 of cylinder 12 along the soil body, the signal output part of described displacement transducer 4 is connected with the signal input part of displacement data collector 1, the signal output part of displacement data collector 1 is connected to main control computer, the signal output part of Temperature Humidity Sensor 8 is connected with the signal input part of moisture moisture recorder 3, the signal output part of moisture moisture recorder 3 is also connected to main control computer 2, main control computer 2 by survey data and can calculate body frost heaving rate and thaw collapse coefficient, the Temperature Humidity Sensor 8 being simultaneously arranged in soil body filling cylinder 12 axis can also measure the soil body to be changed with moisture in the thermograde change of process of frost heave, and the Transport that moisture changes with thermograde can be described.
When measuring the soil body at the frozen-heave factor had under water source supplementary condition and thaw collapse coefficient, base plate 15 offers some water seepage holes, and the bucket 14 be used for for soil body moisturizing is set in the downside of base plate 15; When the mensuration soil body is when without the frozen-heave factor under water source supplementary condition and thaw collapse coefficient, base plate 15 does not need to offer water seepage hole, without the need to being equipped with bucket 14 below yet.
Below operating process of the present utility model is described in detail:
During use, first the soil body is loaded cylinder 12 and be placed in groove on base plate 15, then load cylinder 12 to the soil body and load the soil body, after filling completes, top cover 10 is covered and load on cylinder 12 at the soil body, the outer, upper end making the soil body load cylinder 12 is stuck in the groove on top cover 10, standard impact density is utilized to hammer into shape through the preformed hole on top cover 10 soil tamp, hitting placement one piece of organic glass baffle plate on the upside of the real soil body, then the upper end of displacement transducer 4 is fixed on crossbeam 9 by pressing plate, lower end contacts with organic glass baffle plate through top cover 10, by the mobility detect land movement of organic glass baffle plate, Temperature Humidity Sensor 8 being fixed on the soil body loads on cylinder 12, the data of displacement transducer 4 and Temperature Humidity Sensor 8 are gathered by main control computer 2, pass through surveyed data and can calculate body frost heaving rate and thaw collapse coefficient, the Temperature Humidity Sensor 8 being simultaneously arranged in soil body filling cylinder 12 axis can also measure the soil body to be changed with moisture in the thermograde change of process of frost heave, the Transport that moisture changes with thermograde can be described.
When measuring the soil body at the frozen-heave factor had under water source supplementary condition and thaw collapse coefficient, base plate 15 offers some water seepage holes, and the bucket 14 be used for for soil body moisturizing is set in the downside of base plate 15; When the mensuration soil body is when without the frozen-heave factor under water source supplementary condition and thaw collapse coefficient, base plate 15 does not need to offer water seepage hole, without the need to being equipped with bucket 14 below yet.
Claims (10)
1. body frost heaving rate and thaw collapse coefficient simultaneous determination test instrument, it is characterized in that, comprise the through soil body in two ends and load cylinder (12), the two ends that the soil body loads cylinder (12) are respectively arranged with top cover (10) and base plate (15), and top cover (10) and base plate (15) by intert the threaded rod (7) be arranged on the two and the nut (5) coordinated with threaded rod (7) fastening, soil body filling cylinder (12) is connected with the cryogenic thermostat system for making the soil body be in cryogenic thermostat state, top cover (10) is provided with the displacement transducer (4) for detecting land movement, soil body filling cylinder (12) also interts and is provided with some Temperature Humidity Sensors (8) for detecting soil body moisture and temperature, described displacement transducer (4) and Temperature Humidity Sensor (8) are connected to main control computer (2) respectively by displacement data collector (1) and moisture moisture recorder (3).
2. body frost heaving rate according to claim 1 and thaw collapse coefficient simultaneous determination test instrument, it is characterized in that, cryogenic thermostat system comprises to be loaded the cooling pipe (6) of cylinder (12) inner side around being arranged on the soil body and being arranged on the low temperature thermostat bath (16) that the soil body loads cylinder (12) outside, and the inlet end of cooling pipe (6) and endpiece are connected to endpiece and the inlet end of low temperature thermostat bath (16) by connecting pipe (11).
3. body frost heaving rate according to claim 2 and thaw collapse coefficient simultaneous determination test instrument, is characterized in that, it is organic glass cylinder that the soil body loads cylinder (12), and cooling pipe (6) is copper pipe, and connecting pipe (11) is rubber tube.
4. body frost heaving rate according to claim 1 and thaw collapse coefficient simultaneous determination test instrument, it is characterized in that, top cover (10) is provided with the groove loaded cylinder (12) outer, top with the soil body and match, base plate (15) is provided with the groove loaded cylinder (12) outer, bottom with the soil body and match, and is provided with the preformed hole for hitting the real soil body inside the groove on top cover (10).
5. body frost heaving rate according to claim 4 and thaw collapse coefficient simultaneous determination test instrument, it is characterized in that, be provided with some water seepage holes inside groove on base plate (15), and the downside of base plate (15) is provided with for the bucket (14) for soil body moisturizing.
6. body frost heaving rate according to claim 1 and thaw collapse coefficient simultaneous determination test instrument, it is characterized in that, top cover (10) and base plate (15) are loaded cylinder (12) by two threaded rods (7) and the soil body and are tightened together, and two threaded rods (7) are symmetrically distributed in soil body filling cylinder (12) outside.
7. body frost heaving rate according to claim 6 and thaw collapse coefficient simultaneous determination test instrument, it is characterized in that, the top of threaded rod (7) is fixed with crossbeam (9), the upper end of displacement transducer (4) is fixed on crossbeam (9) by pressing plate, and lower end contacts with the baffle plate be arranged on the upside of the soil body through top cover (10).
8. body frost heaving rate according to claim 1 and thaw collapse coefficient simultaneous determination test instrument, it is characterized in that, Temperature Humidity Sensor (8) along the soil body load cylinder (12) axis be arranged to row, and Temperature Humidity Sensor (8) along the soil body load cylinder (12) radial direction intert be arranged in the soil body.
9. body frost heaving rate according to claim 1 and thaw collapse coefficient simultaneous determination test instrument, is characterized in that, the outside that the soil body loads cylinder (12) is provided with heat-preservation cotton (13).
10. body frost heaving rate according to claim 1 and thaw collapse coefficient simultaneous determination test instrument, is characterized in that, the soil body loads cylinder (12) for cylindrical, and its diameter is 30cm, and height is 90cm, and wall thickness is 1.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520988147.6U CN205157556U (en) | 2015-12-02 | 2015-12-02 | Soil body frozen -heave factor and melting sinks coefficient and jointly surveys test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520988147.6U CN205157556U (en) | 2015-12-02 | 2015-12-02 | Soil body frozen -heave factor and melting sinks coefficient and jointly surveys test instrument |
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| Publication Number | Publication Date |
|---|---|
| CN205157556U true CN205157556U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520988147.6U Expired - Fee Related CN205157556U (en) | 2015-12-02 | 2015-12-02 | Soil body frozen -heave factor and melting sinks coefficient and jointly surveys test instrument |
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| CN (1) | CN205157556U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404825A (en) * | 2016-09-21 | 2017-02-15 | 长安大学 | Frost-heaving ratio and thaw-settlement coefficient simultaneous determination tester for soil body |
| CN106501489A (en) * | 2016-12-09 | 2017-03-15 | 长安大学 | Coarse Saline salt is swollen and molten sunken multifunction test device |
| CN107132336A (en) * | 2017-05-10 | 2017-09-05 | 北京航空航天大学 | A kind of Simple indoor test instrument for studying soil body aqueous vapor migration characteristic |
| CN108445192A (en) * | 2018-05-31 | 2018-08-24 | 北京城建集团有限责任公司 | A kind of multi-functional frost heave, thaw collapse experimental rig |
| CN109884111A (en) * | 2019-03-26 | 2019-06-14 | 哈尔滨工业大学 | A kind of soil freezing heave and water-energy budget couple visualized experiment auxiliary device |
| CN110031608A (en) * | 2019-04-30 | 2019-07-19 | 西南交通大学 | Ever-frozen ground frozen swell and melt settlement characteristic test apparatus and its test method |
| CN110954573A (en) * | 2019-12-16 | 2020-04-03 | 中南大学 | Unsaturated soil frost heaving instrument with multiple loading modes and frost heaving amount testing method |
-
2015
- 2015-12-02 CN CN201520988147.6U patent/CN205157556U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404825A (en) * | 2016-09-21 | 2017-02-15 | 长安大学 | Frost-heaving ratio and thaw-settlement coefficient simultaneous determination tester for soil body |
| CN106501489A (en) * | 2016-12-09 | 2017-03-15 | 长安大学 | Coarse Saline salt is swollen and molten sunken multifunction test device |
| CN107132336A (en) * | 2017-05-10 | 2017-09-05 | 北京航空航天大学 | A kind of Simple indoor test instrument for studying soil body aqueous vapor migration characteristic |
| CN108445192A (en) * | 2018-05-31 | 2018-08-24 | 北京城建集团有限责任公司 | A kind of multi-functional frost heave, thaw collapse experimental rig |
| CN108445192B (en) * | 2018-05-31 | 2023-11-17 | 北京城建集团有限责任公司 | Multifunctional frost heaving and thawing test device |
| CN109884111A (en) * | 2019-03-26 | 2019-06-14 | 哈尔滨工业大学 | A kind of soil freezing heave and water-energy budget couple visualized experiment auxiliary device |
| CN110031608A (en) * | 2019-04-30 | 2019-07-19 | 西南交通大学 | Ever-frozen ground frozen swell and melt settlement characteristic test apparatus and its test method |
| CN110954573A (en) * | 2019-12-16 | 2020-04-03 | 中南大学 | Unsaturated soil frost heaving instrument with multiple loading modes and frost heaving amount testing method |
| CN110954573B (en) * | 2019-12-16 | 2021-04-09 | 中南大学 | Unsaturated soil frost heaving instrument with multiple loading modes and frost heaving amount testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180710 Address after: 710064 No. 33, South Second Ring Road, Beilin District, Xi'an, Shaanxi Co-patentee after: CIVIL ENGINEERING DESIGN ACADEMY OF CHANG'AN UNIVERSITY CO.,LTD. Patentee after: CHANG'AN University Address before: 710064 No. 33, South Second Ring Road, Beilin District, Xi'an, Shaanxi Patentee before: CHANG'AN University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 |