CN205407848U - Dynamic sounding test data gathers and achievement real time transport device based on internet - Google Patents
Dynamic sounding test data gathers and achievement real time transport device based on internet Download PDFInfo
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- CN205407848U CN205407848U CN201620151731.0U CN201620151731U CN205407848U CN 205407848 U CN205407848 U CN 205407848U CN 201620151731 U CN201620151731 U CN 201620151731U CN 205407848 U CN205407848 U CN 205407848U
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Abstract
The utility model discloses a dynamic sounding test data gathers and achievement real time transport device based on internet, including trigger button, a radio signal transmitter, ultrasonic transmitter, the 2nd radio signal transmitter, ultrasonic wave receiver and mobile terminal, the punching hammer is pull upwards impactes trigger button, trigger a radio signal transmitter and an ultrasonic transmitter transmitted pulse simultaneously, mobile terminal receives the pulse and the record accumulative total number of pulse N of radio signal transmitter transmission, the ultrasonic wave receiver is received the pulse of ultrasonic transmitter transmission and is triggered the 2nd radio signal transmitter to mobile terminal transmitted pulse, mobile terminal receives the pulse and calculates and take notes the high hn of sounding pole more than the earth's surface, calculate corresponding rock / soil layer physics mechanical properties and bearing capacity index and pass through internet real time transport. The utility model discloses can directly acquire the soil layer of normal position bear force information and physics mechanics information, ensure as a result the accuracy, in time provide the test achievement.
Description
Technical field
This utility model relates to the Internet technology of engineering geology industry, particularly to a kind of dynamic penetration test data acquisition based on the Internet and achievement real-time Transmission device, it is hammer number N and depth of penetration △ H in medium power feeler inspection (including circular cone dynamic sounding test and standard penetration test (SPT)) is tested for rock-soil engineering in-situ be acquired, calculate and the automaton of achievement transmission.
Background technology
Dynamic sounding is the class home position testing method in geotechnical engineering investigation, it can be subdivided into " light, in, weight, overweight ", and four kinds of circular cone dynamic soundings of type (are called for short: DPT, quality of dropping hammer respectively 10kg, 28kg, 63.5kg and 120kg, fall from respectively 50cm, 80cm, 76cm and 100cm) and standard penetration test (SPT) (abbreviation: SPT, quality of dropping hammer is 63.5kg, fall from for 76cm), wherein there is notable difference in the probe of DPT and SPT.Such in-situ test is to utilize the dropping hammer of fixed mass (energy estimate methods) clash into the probe of standard specifications indexs such as () size and dimensions being connected with feeler lever and make in native (or loose rock) layer of its injection.The physico-mechanical properties feature of soil (or loose rock) layer determines the impedance magnitude in probe injection soil, and this impedance magnitude can carry out quantification differentiation by hammer number N and depth of penetration △ h.Many engineering practices show, the physico-mechanical properties of areal soil (or loose rock) layer has certain regularity, the feature of hammer number N and depth of penetration △ h and the soil layer of dynamic sounding probe injection constant depth has and is closely connected, therefore, it is possible to carry out soil (loose rock) layer based on " mechanics layering ", " cohesive soil liquidity index IL judgement ", " judgement of granitoid rate of decay " of experience, " degree of compaction of soil (silt or gravelly soil) judges " and " bearing capacity inverse " etc. according to N value and △ h value.
Dynamic penetration test needs to record the blow counts of every injection constant depth, and recording process substantially is all completed by manual type.Geotechnical Engineering, the verity of dynamic sounding result blow counts or accuracy and construction quality and construction cost is in close relations, but, the process of manual record blow counts is very loaded down with trivial details and easily makes mistakes.Along with expanding economy, the quantity of engineering construction and the equal rapid increase of speed, the supervision and inspection work comprehensively carrying out dynamic sounding work process is also more and more difficult.
As a whole, the subject matter that the test job of current driving force feeler inspection faces is: 1. the ornamental of result of the test, verity are difficult to ensure that；2. soil (or loose rock) the layer bearing capacity information of original position cannot directly obtain at the scene；3. the physical mechanics information of soil (or loose rock) layer cannot directly obtain at the scene；4. multiple formation informations that same boring is passed through are discrete；5. the offer of dynamic penetration test achievement is substantially delayed；6. the depth of penetration of single hammering cannot accurately obtain.
Therefore, Geotechnical Engineering circle is capable of, in the urgent need to a kind of, the automated system that real-time automatic collecting tests data, report is write and achievement is transmitted.
Utility model content
The purpose of this utility model be in that to provide a kind of can accurately obtain single hammering depth of penetration, guarantee the accuracy of result of the test, soil (or loose rock) the layer bearing capacity information that can directly obtain original position and physical mechanics information, multiple formation information can be integrated and the dynamic penetration test data acquisition based on the Internet and the achievement real-time Transmission device of dynamic penetration test achievement are provided in time.
nullAbove-mentioned purpose of the present utility model can be realized by below scheme: a kind of dynamic penetration test data acquisition based on the Internet and achievement real-time Transmission device，It is characterized in that: it includes the trigger button be located on sounding rod and be positioned at punching hammer top、The first radio-signal transmitter being connected with trigger button and ultrasonic transmitter、It is placed in ground second radio-signal transmitter、Ultrasonic receiver and mobile terminal，Punching hammer is drawn upwards clashes into trigger button，Trigger the first radio-signal transmitter simultaneously and pulse launched by ultrasonic transmitter，Mobile terminal receives the pulse of the first radio-signal transmitter transmitting and records accumulated pulse number N，Ultrasonic receiver then receives pulse that ultrasonic transmitter launches and triggers the second radio-signal transmitter and launch pulse to mobile terminal，Received this pulse by mobile terminal and calculate and record the height H of the above sounding rod in earth's surface，Calculate corresponding rock/soil layer physico-mechanical properties and bearing capacity index and form achievement，By the Internet, achievement real-time Transmission is audited to client and technology auditor.
Trigger button described in the utility model, the first radio-signal transmitter and ultrasonic transmitter are arranged on the scratch diskette that set is fixed on sounding rod, wherein, described trigger button is positioned in the lower card of scratch diskette, and the card of described scratch diskette has a pair breach for the draught line through dynamic sounding equipment.
As a kind of embodiment of the present utility model, described mobile terminal is mainly made up of controller, the Man Machine Interface being connected with controller, output device, the data storage storing working region Nei Yan/soil layer typical index and network communication device, the height H of accumulated pulse number N and sounding rod is all stored in data storage, being numbered by Man Machine Interface input power feeler inspection test event, the height H of accumulated pulse number N and sounding rod is calculated and generates the accumulative blow counts N of the standard depth required by test-types by controllerp(Np=N-1) and accumulative depth of penetration hn-1(hn-1=△ H1+△H2+△H3+……+△Hn-1), by NpAnd hn-1Compare with the rock in working region/soil layer typical index, calculate corresponding rock/soil layer physico-mechanical properties and bearing capacity index, retransmit to output device, described output device forms achievement as requested and exports to network communication device, and achievement real-time Transmission is audited to client and technology auditor by described network communication device by the Internet.
Controller described in the utility model can transfer all kinds of existing normal data (such as working area rock/soil layer information, rock/soil layer property index and similar stratum bearing capacity numerical value etc.) as required, has and carries out the control functions such as computing according to related request.
Mobile terminal described in the utility model at least includes a single-chip microcomputer being connected with above-mentioned each module, and namely this single-chip microcomputer is controller.
Second radio-signal transmitter described in the utility model and ultrasonic receiver are arranged on a base.
This utility model can be tested hammer number N and depth of penetration △ H in medium power feeler inspection (including circular cone dynamic sounding test and standard penetration test (SPT)) for rock-soil engineering in-situ and carry out automatic precise acquisition, calculating and achievement transmission, it is possible to provide dynamic penetration test achievement in time.This utility model can directly obtain soil (or loose rock) layer bearing capacity information and the physical mechanics information of original position, it is possible to scene completes the appraisal report of rock (soil) layer physico-mechanical properties, state and bearing capacity.This utility model utilizes the typical index in working region and actual data acquisition achievement comparison, and utilize differential technique inverse to go out physico-mechanical properties and the bearing capacity index of soil layer, and in dynamic penetration test process, can there is same boring and pass through the situation on multiple stratum, and these multiple formation informations are discrete, multiple formation information can be integrated well by this utility model, and express with the form of bar chart.
As a kind of embodiment of the present utility model, described output device includes the one-tenth figure element for forming and export required map as requested and for forming the evaluation element of the appraisal report of rock/soil layer property, and described map is embedded in the appraisal report of rock/soil layer property and forms described achievement by described evaluation element.
As a kind of improvement of the present utility model, described mobile terminal also includes field data acquisition device, described field data acquisition device is connected with described controller, described field data acquisition device is by being used for positioning the GPS setting element of on-the-spot coordinate, time for automatically being obtained the networking time by network communication module obtains element and the image acquisition element composition obtaining work place environmental information for taking pictures, described GPS locating module and time obtain element and on-the-spot coordinate and time are automatically inserted and form picture in the photo captured by image acquisition element and transmit to network communication device again, or described picture transmits the one-tenth figure element to output device after controller processes, by one-tenth figure element picture embedded in the appraisal report of rock/soil layer property.
As a kind of embodiment of the present utility model, described man-machine interface includes the keyboard array for input power feeler inspection test event numbering and display.
Achievement described in the utility model is sent to client and the mailbox of technology auditor, mobile phone or panel computer by the Internet, it is also possible to be other reception device.
Compared with prior art, this utility model has following significant technique effect:
(1) this utility model can be tested hammer number N and depth of penetration △ H in medium power feeler inspection (include circular cone dynamic sounding test and standard penetration test (SPT)) for rock-soil engineering in-situ and carries out automatic precise acquisition, calculating and achievement transmission, it is possible to provide dynamic penetration test achievement in time.
(2) this utility model can directly obtain soil (or loose rock) layer bearing capacity information and the physical mechanics information of original position, it is possible to scene completes the appraisal report of rock (soil) layer physico-mechanical properties, state and bearing capacity.
(3) this utility model utilizes the typical index in working region and actual data acquisition achievement comparison, and utilize differential technique inverse to go out physico-mechanical properties and the bearing capacity index of soil layer, and this utility model can integrate multiple formation information well, and express with the form of bar chart.
null(4) this utility model can provide the electronics meeting all dynamic sounding in-situ tests general to edit and record form，" working procedure and the content (including Various types of data and photo etc.) " that be available for editor and secondary development is provided，Offer is edited and recorded technical staff and (is specifically included " light according to test-types、In、Weight、Overweight " type four kinds of DPT and standard penetration test (SPT) SPT) the flexible autonomy selecting mode of operation，The template of similar rock (soil) layer " hitting number-mechanics index of physics " corresponding relation having engineering near typing in certain area is provided，Complete on-the-spot record data and one borehole are provided、The map of single work point and whole engineering project in-situ test result and appraisal report，Working environment and the acquisition function of working time are provided，Indoor and on-the-spot communication function is provided，Improve the accuracy of engineering geology dynamic sounding in-situ test result、Reliability、Promptness.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is composition structural representation of the present utility model；
The composition frame chart of Fig. 2 this utility model mobile terminal.
Detailed description of the invention
The punching hammer 12 that existing dynamic sounding equipment includes sounding rod 15, be movably set on sounding rod 15 hammers 12 haulage gears being connected and the pallet 9 being fixed on sounding rod 15 into shape with punching, pallet 9 is in the lower section of punching hammer 12, the lower end of sounding rod 15 is dynamic sounding probe, punching hammer 12 is pulled to be raised above by the draught line 7 of haulage gear, cancelling pulling force again makes punching hammer 12 free-fallings into shape on pallet 9, injection in driving sounding rod 15 earthward, thus completing a hammering, repetitive operation is to realize repeatedly hammering continuously.
nullAs illustrated in fig. 1 and 2，It is a kind of dynamic penetration test data acquisition based on the Internet of this utility model and achievement real-time Transmission device，It includes being located on sounding rod 15 and be positioned at the trigger button 11 above punching hammer 12、The first radio-signal transmitter being connected with trigger button 11 and ultrasonic transmitter 16、It is placed in ground second radio-signal transmitter and ultrasonic receiver 14 (the second radio-signal transmitter and ultrasonic receiver are arranged on a base)、Main by controller、The Man Machine Interface being connected with controller、There is the output device of formation properties Function of Evaluation、Store the data storage of working region Nei Yan/soil layer typical index、The mobile terminal 13 of network communication device and field data acquisition device composition，Punching hammer 12 is drawn upwards shock trigger button 11，Trigger the first radio-signal transmitter simultaneously and pulse launched by ultrasonic transmitter 16，Mobile terminal 13 receive first radio-signal transmitter launch pulse and record accumulated pulse number N (according to the A in Fig. 1 to)，Ultrasonic receiver then receive ultrasonic transmitter 16 launch pulse (according to the B in Fig. 1 to) and trigger the second radio-signal transmitter to mobile terminal 13 launch pulse (according to the C in Fig. 1 to)，The height H of the sounding rod 15 on more than this pulse calculating and record earth's surface is received by mobile terminal 13，The height H of accumulated pulse number N and sounding rod 15 is all stored in data storage；Being numbered by Man Machine Interface input power feeler inspection test event, the height H of the above sounding rod of accumulated pulse number N and earth's surface 15 is calculated and generates the accumulative blow counts N of the standard depth required by test-types by controllerpWith depth of penetration △ Hn-1(n-1 represents the N-1 time, i.e. Hn-Hn-1), several N will be hit according to the accumulative hammering of the determined depth of penetration of related specificationspWith accumulative depth of penetration hn-1(h=△ H1+△H2+△H3+……+△Hn-1) corresponding with the rock in working region/soil layer typical index calculate corresponding rock/soil layer physico-mechanical properties and bearing capacity index, retransmit to output device, output device forms achievement as requested and exports to network communication device, achievement real-time Transmission is audited to client and technology auditor by network communication device by the Internet, specifically can send to mailbox, mobile phone and panel computer, it is also possible to be other reception device.This utility model is to utilize ultrasound wave to carry out range determination, namely measures the distance between ultrasonic transmitter and ultrasonic receiver, and then obtains the height H of the above sounding rod in earth's surface；Trigger button the 3, first radio-signal transmitter and ultrasonic transmitter are arranged on the scratch diskette 10 that set is fixed on sounding rod 15, wherein, trigger button 11 is positioned in the lower card of scratch diskette 10, and the card of scratch diskette 10 has a pair breach for the draught line 7 through dynamic sounding equipment.Second radio-signal transmitter and ultrasonic receiver 14 are located on base, it is possible to be placed on the side of sounding rod, it is also possible to distance sounding rod certain distance, this distance is needed measurement and inputted into mobile terminal by Man Machine Interface.
Man-machine interface includes the keyboard array for input power feeler inspection test event numbering and display.
Controller can transfer data with existing (such as working area rock (soil) layer information, rock (soil) layer character index and similar stratum bearing capacity numerical value etc.) as required, has and carries out the control functions such as computing according to related request.
Output device includes for forming and export the one-tenth figure element of required map as requested and for forming the evaluation element of the appraisal report of rock/soil layer property, evaluates element and is embedded by map in the appraisal report of rock/soil layer property and form achievement.
Field data acquisition device, such as digital camera sensor devices, by being used for positioning the GPS setting element of on-the-spot coordinate, time for automatically being obtained the networking time by network communication module obtains element and the image acquisition element composition obtaining work place environmental information for taking pictures, GPS setting element and time obtain element and on-the-spot coordinate and time are automatically inserted and form picture in the photo captured by image acquisition element and transmit to network communication device again, or picture transmits the one-tenth figure element to output device after controller processes, by one-tenth figure element picture embedded in the appraisal report of rock/soil layer property.
Network communication device includes UART serial port module unit, WIFI DCOM unit and BT4.0 bluetooth communication unit.Mobile communication modular unit (such as GPRS, GSM, TBSCDMA or LTE etc.) and USB serial port module unit (such as PC end USB or MICROUSB) can also be configured as required.Data storage includes FLASH modular unit, EEPROM module unit and DDRAM module.MICROSD modular unit and/or TIF modular unit can also be configured according to specific needs.Each modular unit is prior art above.
As in figure 2 it is shown, the connected mode of each ingredient is as follows in mobile terminal: the connected mode 1 of single-chip microcomputer and keyboard array is: UART；The connected mode 2 of single-chip microcomputer and network communication device is: UART；The connected mode 3 of single-chip microcomputer and data storage is: P3.2-P3.3；The connected mode 4 of image acquisition element and single-chip microcomputer is: P2；The connected mode 5 of output device and single-chip microcomputer is: P1；The connected mode 6 of GPS setting element and single-chip microcomputer is: UART.Above connected mode is prior art.
Work process of the present utility model is as follows: traction apparatus connects punching hammer and moves upward and clash into trigger button, and the first radio-signal transmitter is launched pulse to mobile terminal and received and record accumulated pulse number N (N-1 is actual hammering and hits number) by mobile terminal；Meanwhile, ultrasonic transmitter is also launched pulse and is received by ultrasonic receiver, and then triggering the second radio-signal transmitter sends pulse and received the height H and depth of penetration △ H that calculate and record the above sounding rod in earth's surface by mobile terminaln-1(accumulative depth of penetration hn-1=△ H1+△H2+△H3+……+△Hn-1)；So repeatedly work, final " N-1 " and hn-1It is the blow counts of dynamic sounding and accumulative depth of penetration.According to blow counts " N-1 " and accumulative depth of penetration hn-1, mobile terminal calculates accumulative depth of penetration hn-1, the accumulative of standard depth required by the average depth of penetration △ h of single technology and test-types hit several Np(Np=N-1), carry out with the typical index on corresponding stratum accordingly corresponding calculating corresponding rock/soil layer physico-mechanical properties and bearing capacity index, finally showing evaluation result (including the indexs such as physico-mechanical properties, state and bearing capacity) and form the report of corresponding word, word report sends the mailbox of relevant departments, mobile phone and panel computer etc. to by the Internet and receives device.This utility model is suitable in " light, weight, overweight " four kinds of circular cone dynamic soundings (DPT) of type and standard penetration test (SPT) (SPT), final depth of penetration will be determined according to the dynamic spy type pre-set, especially the index of correlation of 15～45cm depth of penetration is only evaluated (front 0～15cm injection situation is only recorded with for referencial use) by the Final Report of standard penetration test, will be reminded power cut-off by mobile terminal after arriving desired depth.
This utility model has following functions: the electronics meeting all dynamic sounding in-situ tests general can be provided to edit and record form, " working procedure and the content (including Various types of data and photo etc.) " that be available for editor and secondary development is provided, offer is edited and recorded technical staff and (is specifically included " light according to test-types, in, weight, overweight " four kinds of DPT of type and standard penetration test (SPT)) select the autonomy of mode of operation flexibly, the template of similar rock (soil) layer " hitting number-mechanics index of physics " corresponding relation having engineering near typing in certain area is provided, complete on-the-spot record data and one borehole are provided, the map of single work point and whole engineering project in-situ test result and appraisal report, working environment and the acquisition function of working time are provided, indoor and on-the-spot communication function is provided.
Embodiment of the present utility model is not limited to this; according to foregoing of the present utility model; ordinary technical knowledge and customary means according to this area; without departing under the above-mentioned basic fundamental thought premise of this utility model; this utility model can also make the amendment of other various ways, replacement or change, all falls within this utility model rights protection scope.
Claims (7)
- null1. the dynamic penetration test data acquisition based on the Internet and achievement real-time Transmission device，It is characterized in that: it includes the trigger button be located on sounding rod and be positioned at punching hammer top、The first radio-signal transmitter being connected with trigger button and ultrasonic transmitter、It is placed in ground second radio-signal transmitter、Ultrasonic receiver and mobile terminal，Punching hammer is drawn upwards clashes into trigger button，Trigger the first radio-signal transmitter simultaneously and pulse launched by ultrasonic transmitter，Mobile terminal receives the pulse of the first radio-signal transmitter transmitting and records accumulated pulse number N，Ultrasonic receiver then receives pulse that ultrasonic transmitter launches and triggers the second radio-signal transmitter and launch pulse to mobile terminal，Received this pulse by mobile terminal and calculate and record the height H of the above sounding rod in earth's surface，Calculate corresponding rock/soil layer physico-mechanical properties and bearing capacity index and form achievement，By the Internet, achievement real-time Transmission is audited to client and technology auditor.
- 2. the dynamic penetration test data acquisition based on the Internet according to claim 1 and achievement real-time Transmission device, it is characterized in that: described trigger button, the first radio-signal transmitter and ultrasonic transmitter are arranged on the scratch diskette that set is fixed on sounding rod, wherein, described trigger button is positioned in the lower card of scratch diskette, and the card of described scratch diskette has a pair breach for the draught line through dynamic sounding equipment.
- 3. the dynamic penetration test data acquisition based on the Internet according to claim 2 and achievement real-time Transmission device, it is characterized in that: described mobile terminal is mainly by controller, the Man Machine Interface being connected with controller, output device, store data storage and the network communication device composition of working region Nei Yan/soil layer typical index, the height H of accumulated pulse number N and sounding rod is all stored in data storage, numbered by Man Machine Interface input power feeler inspection test event, the height H of accumulated pulse number N and sounding rod is calculated and generates the accumulative blow counts N of the standard depth required by test-types by controllerpWith accumulative depth of penetration hn-1, by NpAnd hn-1Compare with the rock in working region/soil layer typical index, calculate corresponding rock/soil layer physico-mechanical properties and bearing capacity index, retransmit to output device, described output device forms achievement as requested and exports to network communication device, and achievement real-time Transmission is audited to client and technology auditor by described network communication device by the Internet.
- 4. the dynamic penetration test data acquisition based on the Internet according to claim 3 and achievement real-time Transmission device, it is characterized in that: described output device includes the one-tenth figure element for forming and export required map as requested and for forming the evaluation element of the appraisal report of rock/soil layer property, and described map is embedded in the appraisal report of rock/soil layer property and forms described achievement by described evaluation element.
- null5. the dynamic penetration test data acquisition based on the Internet according to claim 4 and achievement real-time Transmission device，It is characterized in that: described mobile terminal also includes field data acquisition device，Described field data acquisition device is connected with described controller，Described field data acquisition device is by being used for positioning the GPS setting element of on-the-spot coordinate、Time for automatically being obtained the networking time by network communication module obtains element and the image acquisition element composition obtaining work place environmental information for taking pictures，Described GPS locating module and time obtain element and on-the-spot coordinate and time are automatically inserted and form picture in the photo captured by image acquisition element and transmit to network communication device again，Or described picture transmits the one-tenth figure element to output device after controller processes，By one-tenth figure element picture embedded in the appraisal report of rock/soil layer property.
- 6. the dynamic penetration test data acquisition based on the Internet according to claim 5 and achievement real-time Transmission device, it is characterised in that: described man-machine interface includes the keyboard array for input power feeler inspection test event numbering and display.
- 7. the dynamic penetration test data acquisition based on the Internet according to claim 6 and achievement real-time Transmission device, it is characterised in that: described achievement is sent to client and the mailbox of technology auditor, mobile phone or panel computer by the Internet.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108914910A (en) * | 2018-08-02 | 2018-11-30 | 中国十七冶集团有限公司 | It is a kind of based on internet+intelligent automation deep basal pit water level monitoring and coordinated control system |
| CN109342226A (en) * | 2018-11-08 | 2019-02-15 | 海天建设集团有限公司 | Geology electronic map display systems and geology electronic map marker method |
| CN109898487A (en) * | 2019-03-13 | 2019-06-18 | 深圳市勘察测绘院(集团)有限公司 | Standard penetration test (SPT) self recording apparatus |
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- 2016-02-29 CN CN201620151731.0U patent/CN205407848U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914910A (en) * | 2018-08-02 | 2018-11-30 | 中国十七冶集团有限公司 | It is a kind of based on internet+intelligent automation deep basal pit water level monitoring and coordinated control system |
| CN109342226A (en) * | 2018-11-08 | 2019-02-15 | 海天建设集团有限公司 | Geology electronic map display systems and geology electronic map marker method |
| CN109342226B (en) * | 2018-11-08 | 2024-04-09 | 海天建设集团有限公司 | Geological electronic map display system and geological electronic map marking method |
| CN109898487A (en) * | 2019-03-13 | 2019-06-18 | 深圳市勘察测绘院(集团)有限公司 | Standard penetration test (SPT) self recording apparatus |
| CN109898487B (en) * | 2019-03-13 | 2024-01-05 | 深圳市勘察测绘院(集团)有限公司 | Automatic recording equipment for standard penetration test |
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Address after: No.146, huangbian North Road, Baiyun District, Guangzhou, Guangdong 510440 Patentee after: Guangdong transportation planning and Design Institute Group Co.,Ltd. Address before: No.22 Xinghua Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG PROVINCE COMMUNICATIONS PLANNING & DESIGN INSTITUTE Co.,Ltd. |