CN203008000U - Construction monitoring device for high pressure jet grouting pile - Google Patents

Construction monitoring device for high pressure jet grouting pile Download PDF

Info

Publication number
CN203008000U
CN203008000U CN 201220184834 CN201220184834U CN203008000U CN 203008000 U CN203008000 U CN 203008000U CN 201220184834 CN201220184834 CN 201220184834 CN 201220184834 U CN201220184834 U CN 201220184834U CN 203008000 U CN203008000 U CN 203008000U
Authority
CN
China
Prior art keywords
construction
high pressure
module
jet grouting
grouting pile
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.)
Expired - Lifetime
Application number
CN 201220184834
Other languages
Chinese (zh)
Inventor
黄均龙
张帆
毛庆祥
张冠军
李永迪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI TUNNEL FOUNDATION ENGINEERING Co Ltd
Original Assignee
Shanghai Tunnel Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Tunnel Engineering Co Ltd filed Critical Shanghai Tunnel Engineering Co Ltd
Priority to CN 201220184834 priority Critical patent/CN203008000U/en
Application granted granted Critical
Publication of CN203008000U publication Critical patent/CN203008000U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Piles And Underground Anchors (AREA)

Abstract

The utility model discloses a construction monitoring device for a high pressure jet grouting pile, and the device comprises an on site acquisition transition module and an on site monitoring module, wherein the on site acquisition transition module collects instant data in a construction process, and the data is converted into pulse signals or electric signals; and the on site monitoring module receives the pulse signals or electric signals generated by the on site acquisition transition module, the pulse signals or electric signals are further processed, and various parameter curve charts are formed and displayed.

Description

The Construction of High Pressure Jet Grouting Pile monitoring device
Technical field
The utility model relates to a kind of construction quality monitoring device, especially, relates to a kind of construction monitoring device of high-pressure rotary jet grouting pile.
Background technology
The Construction of High Pressure Jet Grouting Pile technology is to be grown up in conjunction with the high-pressure spray cutting technique by chemical grouting, becomes a kind of foundation treatment technology of reinforcing soft soil.Its construction technology is after adopting rig first to be drilled into desired depth, nozzle by the drill rod end installation, rotate and spray the high-pressure fluid cutting soil body on one side, cement grout is mixed on one side with the soil body of chopping, form firm cement-soil induration after chemical reaction, intensity can reach several MPas, be used for improving bearing capacity of foundation soil, carrying out the ground stabilization of building processes, also be used for the ground stabilization of shield structure inlet and outlet cave, all be widely used in fields such as civil engineering, hydraulic engineering, mine engineering, municipal engineering, subway engineerings.Size and the soil layer property of induration are closely related, and be also different with the difference of nozzle parameter simultaneously.
The injection stream that Construction of High Pressure Jet Grouting Pile uses has four kinds at present:
Single pipe method injection stream: single high pressure cement slurries injection stream.
Double pipe method injection stream: the blast injection stream of high pressure cement slurries injection stream and its outer most surrounding consists of the combined type high pressure jet stream.
Tri-tube method injection stream: by the blast injection stream of high pressure water jet and its outer most surrounding, and consist of the combined type high pressure jet stream with the low pressure cement slurry stream.
Two high-pressure process injection streams: the blast injection stream by high pressure water jet, high pressure cement slurries injection stream and its outer most surrounding of a determining deviation consists of the two high pressure jet streams of combined type respectively.
In recent years, having again and introduce to use Japanese MJS engineering method high-pressure rotary jet grouting pile, have that expanded diameter is large, construction parameter can show little with automatic record and peripheral ground deformation effect, is the abbreviation of " comprehensive high-pressure injection technology ".The maximum characteristics of this method are on the basis of double pipe method injection stream, have set up the valve that drill bit place's mud pressure measurement, mud plasma discharge mouth, special-purpose plasma discharge pipeline and plasma discharge mouth oil cylinder are controlled.Nozzle ejection high-pressure water jet by mud plasma discharge mouth place initiatively sucks mud, and mud is discharged through the plasma discharge pipeline.Spray the unnecessary mud that the cutting soil body produces, can be by the churning drill bit place mud pressure value that measures, adjust the flow of plasma discharge mouth bath nozzle supply-water pump or the size of plasma discharge mouth valve openings, the mud amount that control is discharged reaches the pressure to ground, expulsion pressure is fully used, be out of shape thereby reduce the earth's surface impact that reaches surrounding environment.The MJS engineering method not only is used in vertically large degree of depth churning, also can use at level, incline direction.
High-pressure rotary jet grouting pile technique belongs to disguised engineering construction, generally can't directly judge its construction quality at present, also there is no desirable instant detection means, generally adopts boring and coring to inspect by random samples at random, and inspects by random samples with very large contingency at random.Common grouting automatic recorder can only show and records grouting amount and grouting pressure, does not reflect the grouting amount in unit depth.
In order to ensure the Construction of High Pressure Jet Grouting Pile quality, lifting construction technology, the instant device that detects of the quality in the time of need to providing a kind of suitable Construction of High Pressure Jet Grouting Pile.
The utility model content
Main purpose of the present utility model is to improve the Construction of High Pressure Jet Grouting Pile quality, stop construction quality hidden danger, the Construction of High Pressure Jet Grouting Pile parameter that implementation information construction, the utility model provide is monitoring and tape deck automatically, can immediately detect the Construction of High Pressure Jet Grouting Pile quality.
Construction of High Pressure Jet Grouting Pile monitoring device of the present utility model comprises a collection in worksite modular converter, and a field monitor module, and wherein the collection in worksite modular converter gathers instant data in work progress, and these data transaction are become pulse signal or the signal of telecommunication; The field monitor module receives pulse signal or the signal of telecommunication that above-mentioned collection in worksite modular converter produces, and above-mentioned pulse signal or the signal of telecommunication are further processed, and generates various parametric plots and shows;
Preferably, the field monitor module is that in-situ monitor further comprises a data processing module, one operational module, one display module, reach one and preserve module, operational module starts or finishes the operation of field monitor module, and need to select the parameter information of demonstration, display module shows required parameter information according to the instruction of operational module, preserves the data after module is preserved processing.Preferably, described field monitor module further comprises a network interface.
Preferably, comprise a teleprocessing module, this teleprocessing module is by network delivery or preserve the deal with data that module receives above-mentioned data processing module, and the result of described data processing module is replenished processing.
Preferably, described teleprocessing module comprises a computer and a printer, and its Computer can be installed specific software data are replenished processing, the printable curve map of printer and construction form.
preferably, described collection in worksite modular converter comprises following equipment: a depth measurement device, move main winch wire rope displacement pulse counting signal on chain or overhead system jet drill rig in order to gather unit head on jet drill rig, one approach switch, in order to gather the jet drill power head tach signal, one double-shaft tilt angle sensor, in order to gather jet drill power head guide rail or column tilt signals, three electromagnetic flowmeters, cement slurry volume or the water yield signal crossed in order to acquisition stream, one gas flowmeter, compressed air require and the pressure signal crossed in order to acquisition stream, the Three pressures sensor, the cement grout of crossing in order to acquisition stream or the pressure signal of water, a miniature pressure cell is in order to gather soil pressure or the mud pressure signal at churning drill bit place, and a small-sized displacement transducer, in order to gather pulp-expelling valve door opening high low signal on the churning drill bit, described field monitor module is by the equipment collection in an above-mentioned collection in worksite modular converter of signal cable reception and pulse signal or the signal of telecommunication after conversion, described operational module comprises an operated key group, above-mentioned in-situ monitor is started with end operate, and carries out the setting of technique comparative parameter, sets the time target and moves, the change of numeral, setting check operation, described display module comprises a display screen, according to the various information after the order Graphics Processing of operational module.
Preferably, the changeable demonstration of construction monitoring information parameter or show simultaneously with multiwindow or multi-screen mode.
The beneficial effects of the utility model are:
Can be applied to the automatic inspecting and recording of single pipe method, double pipe method, tri-tube method, two high-pressure process and MJS method Construction of High Pressure Jet Grouting Pile parameter, the implementation information construction, and automatically generate the mixing pile construction form.
The detailed construction situation of engineers and technicians or management observable pile is consulted historical pile data.
The utility model is that few slurry in high-pressure rotary jet grouting pile bore forming process, disconnected slurry, slip casting are inhomogeneous, the appearance of water filling (slip casting) insufficient pressure and crooked pile phenomenon provides open-and-shut construction pile technique information, is the firsthand information that check, acceptance check department provide reflection high-pressure rotary-spray quality of pile.
The utility model can effectively be controlled high-pressure rotary-spray drill power head hoisting velocity, and monitoring grouting amount and water filling (slip casting) pressure, the pile degree of depth can effectively be carried out the management of Construction of High Pressure Jet Grouting Pile quality.
The utility model also can be used for the management of three axle mixing pile construction quality.
Description of drawings
Fig. 1 is the principle module map of the utility model Construction of High Pressure Jet Grouting Pile monitoring device.
Fig. 2 is the combination schematic diagram of the utility model one embodiment each several part.
Fig. 3 is the schematic diagram of embodiment in-situ monitor in Fig. 2.
Fig. 4-6th, in the utility model one embodiment, in-situ monitor shows the part schematic diagram of information.
The specific embodiment
Describe the technical solution of the utility model in detail referring to accompanying drawing.
As shown in Figure 1, the utility model Construction of High Pressure Jet Grouting Pile monitoring device comprises collection in worksite modular converter 100, one field monitor module 200, one teleprocessing modules 600.
Wherein collection in worksite modular converter 100 is used for the collection of the various instant data of site operation process and these data transaction is become pulse signal or the signal of telecommunication, so that field monitor module 200 is processed;
Field monitor module 200 further comprises data processing module 201, one operational module 300, one display modules 400, one preservation modules 500.
Wherein data processing module 201 receives above-mentioned pulse signal or the signal of telecommunication, and the pulse signal after above-mentioned conversion or the signal of telecommunication are further carried out the data processing, generates the required various parametric plots of user, is convenient to further directly perceived the demonstration;
Wherein 300 pairs of above-mentioned data processing modules 201 of operational module operate, need to select the parameter of demonstration, image switching comprises that setting time target moves, the operation of change, startup and the end data processing module 201 of Digital size value, and the operation of confirming and ordering preservation;
Display module 400 shows the construction parameter of user's needs according to the result of the operation of aforesaid operations module 300 and data processing module 201, and can a plurality of curve map modes show, construct according to the technological parameter of design in the Construction of High Pressure Jet Grouting Pile formation of pile with the guiding construction personnel, and the detailed construction situation of engineers and technicians or management observable pile;
Preserve the data after module 500 is preserved above-mentioned data processing module 201 processing, as backup or transfer processing;
Teleprocessing module 600 can read the data of preserving the data in module 500 or receiving above-mentioned field monitor module 200 by ethernet communication, software by special use carries out further in-depth processing to data, monitor at the scene and generate more parametric plot on the basis that module 200 processed, result to field monitor module 200 is replenished, to satisfy actual construction demand and design.
Describe a preferred embodiment of the present utility model below in conjunction with Fig. 2-3, described collection in worksite modular converter 100 can comprise following equipment:
One depth measurement device 1, with jet drill rig top sprocket shaft thread connection, or contact with main winch wire rope on the overhead system jet drill rig, and realization and unit head move chain or wire rope synchronous shift, moves main winch wire rope displacement pulse counting signal on chain or overhead system jet drill rig in order to gather unit head on jet drill rig;
One approach switch 2, be arranged on jet drill power head, along with the rotation of unit head, measure with the jet drill power head output flange on protrusion iron plate when rotation near number of times, thereby the switched electrical signal that output is corresponding is in order to gather the jet drill power head tach signal;
One double-shaft tilt angle sensor 3, be placed on jet drill power head guide rail or column, swing or inclination due to jet drill power head guide rail or column, the horizontal level of obliquity sensor is changed, thereby change and export the corresponding 4-20mA signal of telecommunication, in order to gather jet drill power head guide rail or column tilt signals;
The corresponding 4-20mA signal of telecommunication is changed and exported to three electromagnetic flowmeters 4, the cement slurry volume that will pass through or the water yield, cement slurry volume or the water yield signal crossed in order to acquisition stream;
One gas flowmeter 5, the compressed air that will pass through convert respectively an air flow rate signal and an air pressure signal to, and export the 4-20mA signal of telecommunication of two correspondences, compressed air require and the pressure signal crossed in order to acquisition stream;
Three pressures sensor 6, the cement paste that will pass through or water convert corresponding pressure signal to, and the 4-20mA signal of telecommunication corresponding to output, the cement grout of crossing in order to acquisition stream or the pressure signal of water;
The corresponding 4-20mA signal of telecommunication is changed and exported to one miniature pressure cell 7 with the soil pressure or the mud pressure that measure on the churning drill bit, in order to gather soil pressure or the mud pressure signal at churning drill bit place;
One small-sized displacement transducer 8 is with pulp-expelling valve door opening size conversion and the 4-20mA signal of telecommunication corresponding to output that measures on MJS engineering method high-pressure rotary-spray drill bit, in order to gather pulp-expelling valve door opening high low signal on the churning drill bit;
More than can partly or entirely arrange according to the construction monitoring needs.
Field monitor module 200 i.e. an in-situ monitor 11, pulse signal or the signal of telecommunication after gathering and change by signal cable 9 reception the said equipment 1-8, carry out data processes in inside, generate various parametric plots, in-situ monitor 11 further comprises a movable storage device interface and a network interface, data after in-situ monitor 11 is processed can be preserved by the backup of external mobile memory device, also can pass through 14 teletransmissions of ethernet communication line to respective user by network interface simultaneously;
In-situ monitor 11 further comprises operated key group 10, one display screens 12.
Wherein 10 pairs of above-mentioned in-situ monitors 11 startups of operated key group operate with end, carry out the setting of technique comparative parameter, set the time target and move, the change of numeral, the operations such as setting check.
Display screen 12, with the data processed result of above-mentioned in-situ monitor 11, the various parametric plots of generation show under the selection of operated key group 10 is switched.
Preserve module 500 and can be in the present embodiment a movable storage device 13 that is connected with in-situ monitor 11, as USB flash disk, CD or portable hard drive commonly used, the data after saving scene monitor 11 is processed are as the use of data backup or transfer.
Teleprocessing module 600 comprises a remote computer 15, this remote computer 15 connects a printer 16, data after remote computer 15 can be processed by movable storage device or network reception in-situ monitor 11, according to user's request, utilize specific software, carrying out secondary data on above-mentioned result processes, further generate the construction parameter form that the user needs, as the time meta-reference record table, displacement-reference record table, the time meta-parametric plot, displacement-parametric plot etc., printer 16 is printable goes out various curve maps and form figure.The setting of teleprocessing module 600 is convenient to the user and is not monitored at the scene condition of construction, and carries out remote guide and feedback.
As shown in Fig. 4-6, after processing through in-situ monitor 11 data, the information that shows on display screen 12 is because the parameter that construction monitoring relates to is many, can pass through displaying contents 1, displaying contents 2, displaying contents 3 etc. and switch demonstration, Fig. 4-6 are a kind of mode of switching demonstration.
Displaying contents 1 as Fig. 4 comprises:
The top first floor shows pile No., date and clock;
The second layer shows instantaneous value and the required value of cement paste, water under high pressure, compressed-air actuated flow and pressure;
The 3rd layer of display depth, speed, rotating speed, instantaneous value and the required value of internal pressure, serum density;
The 4th layer shows plasma discharge door aperture, inclination angle, front and back and inclination angle, left and right.
The displaying contents 2 of Fig. 5 comprises:
The top shows pile No., date and clock;
The left side shows section pulp quantity and total slurry value;
The right shows respectively section pulp quantity-depth curve figure and rising or falling speed (rotating speed, the pile degree of depth)-time plot.
The displaying contents 3 of Fig. 6 comprises:
The top first floor shows pile No., date and clock;
The second layer shows grouting amount-time plot;
The 3rd layer shows grouting pressure-time plot;
The 4th layer shows water under high pressure flow and pressure-time curve figure.
Preferably, if display screen is enough large, or a plurality of display screens are arranged, these displaying contents also can be set to multiwindow, and multi-screen shows simultaneously.
Preferably, the utility model can omit teleprocessing module 600 for the Construction of High Pressure Jet Grouting Pile operation that does not need remote monitoring.
Preferably, Construction of High Pressure Jet Grouting Pile monitoring device of the present utility model is applicable to the automatic inspecting and recording of existing single pipe method, double pipe method, tri-tube method, two high-pressure process and MJS method Construction of High Pressure Jet Grouting Pile parameter.
Preferably, Construction of High Pressure Jet Grouting Pile monitoring device of the present utility model also can be applicable to the management of three axle mixing pile construction quality.
Although Construction of High Pressure Jet Grouting Pile monitoring device of the present utility model is described with reference to current instantiation, but those skilled in the art should be realized that, above example is only that the utility model is described, also can make the variation of various equivalences and revise and all will drop in the scope of claims of the present utility model in the situation that do not break away from the utility model spirit.

Claims (3)

1. a Construction of High Pressure Jet Grouting Pile monitoring device, is characterized in that, comprising:
One collection in worksite modular converter;
One field monitor module, described field monitor module connects described collection in worksite modular converter.
2. Construction of High Pressure Jet Grouting Pile monitoring device as claimed in claim 1 is characterized in that:
Described collection in worksite modular converter comprises following equipment:
One depth measurement device, an approach switch, a double-shaft tilt angle sensor, three electromagnetic flowmeters, a gas flowmeter; Three pressures sensor, a miniature pressure cell and a small-sized displacement transducer.
3. Construction of High Pressure Jet Grouting Pile monitoring device as claimed in claim 1, is characterized in that, described field monitor module comprises an in-situ monitor.
CN 201220184834 2012-04-27 2012-04-27 Construction monitoring device for high pressure jet grouting pile Expired - Lifetime CN203008000U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220184834 CN203008000U (en) 2012-04-27 2012-04-27 Construction monitoring device for high pressure jet grouting pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220184834 CN203008000U (en) 2012-04-27 2012-04-27 Construction monitoring device for high pressure jet grouting pile

Publications (1)

Publication Number Publication Date
CN203008000U true CN203008000U (en) 2013-06-19

Family

ID=48599609

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220184834 Expired - Lifetime CN203008000U (en) 2012-04-27 2012-04-27 Construction monitoring device for high pressure jet grouting pile

Country Status (1)

Country Link
CN (1) CN203008000U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104652435A (en) * 2015-02-10 2015-05-27 济南轨道交通集团有限公司 Intelligent pile machine equipment and method
CN105113499A (en) * 2015-10-23 2015-12-02 河海大学 Test system and method for detecting cement content of pile body of cement stirring pile in real time
CN106545326A (en) * 2016-09-28 2017-03-29 中国建筑股份有限公司 A kind of long-spiral drilling machine construction monitoring system
CN106759299A (en) * 2017-02-26 2017-05-31 北京中岩大地科技股份有限公司 A kind of controllable churning technique in stake footpath
CN107503733A (en) * 2017-10-18 2017-12-22 徐工集团工程机械有限公司 High pressure jet grouting parameter monitoring system, method and high-pressure rotary-spray rig
CN108343097A (en) * 2018-01-26 2018-07-31 山东大学 A kind of monitoring method of foundation pit rotary churning pile to overhead high-speed rail construction effect
CN109356207A (en) * 2018-11-03 2019-02-19 上海隧道工程有限公司 Multifunctional high pressure jet grouting pile construction monitoring device
CN110378616A (en) * 2019-07-26 2019-10-25 北京中岩大地科技股份有限公司 Jet grouting pile construction real-time monitoring method for quality

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104652435B (en) * 2015-02-10 2016-03-02 济南轨道交通集团有限公司 A kind of intelligent pile machine equipment and method
CN104652435A (en) * 2015-02-10 2015-05-27 济南轨道交通集团有限公司 Intelligent pile machine equipment and method
US10119240B2 (en) 2015-10-23 2018-11-06 Hohai University Test system and test method for detecting cement content of cement mixing pile body in real time
CN105113499A (en) * 2015-10-23 2015-12-02 河海大学 Test system and method for detecting cement content of pile body of cement stirring pile in real time
WO2017067097A1 (en) * 2015-10-23 2017-04-27 河海大学 Test system and test method for detecting cement content in pile body of cement mixing pile in real-time
CN106545326A (en) * 2016-09-28 2017-03-29 中国建筑股份有限公司 A kind of long-spiral drilling machine construction monitoring system
CN106759299A (en) * 2017-02-26 2017-05-31 北京中岩大地科技股份有限公司 A kind of controllable churning technique in stake footpath
CN107503733A (en) * 2017-10-18 2017-12-22 徐工集团工程机械有限公司 High pressure jet grouting parameter monitoring system, method and high-pressure rotary-spray rig
CN107503733B (en) * 2017-10-18 2021-05-07 徐工集团工程机械有限公司 High-pressure rotary jet grouting parameter monitoring system and method and high-pressure rotary jet drilling machine
CN108343097A (en) * 2018-01-26 2018-07-31 山东大学 A kind of monitoring method of foundation pit rotary churning pile to overhead high-speed rail construction effect
CN108343097B (en) * 2018-01-26 2019-10-18 山东大学 A kind of monitoring method of foundation pit rotary churning pile to overhead high-speed rail construction effect
CN109356207A (en) * 2018-11-03 2019-02-19 上海隧道工程有限公司 Multifunctional high pressure jet grouting pile construction monitoring device
CN110378616A (en) * 2019-07-26 2019-10-25 北京中岩大地科技股份有限公司 Jet grouting pile construction real-time monitoring method for quality
CN110378616B (en) * 2019-07-26 2021-12-21 北京中岩大地科技股份有限公司 Method for monitoring construction quality of jet grouting pile in real time

Similar Documents

Publication Publication Date Title
CN203008000U (en) Construction monitoring device for high pressure jet grouting pile
CN103256045B (en) The generation of coalbed methane reservoir coal dust, migration, sedimentation, blocking dynamic evaluation instrument
CN102298154B (en) Device and method for monitoring evolution and distribution of mining-induced fracture
CN107503733B (en) High-pressure rotary jet grouting parameter monitoring system and method and high-pressure rotary jet drilling machine
CN106089186B (en) Segmented water injection well mouth and well bottom signal wireless transmitting and receiving device and wireless transmission method
CN201218761Y (en) On-line monitoring system for hydraulic support working condition of coal mine down-hole working surface
CN209260776U (en) Multifunctional high pressure jet grouting pile construction monitoring device
CN103061753A (en) Device for measuring downhole flow while drilling and monitoring early overflow
CN101634156A (en) Automatic monitoring and recording device of construction parameters of cement soil deep triaxial mixing pile
CN106950070A (en) Experimental rig for rectangular top pipe jacking construction Whole Process Simulation
CN202531136U (en) Automatic measuring-adjusting and monitoring separate injection system for water injection well
CN109356207A (en) Multifunctional high pressure jet grouting pile construction monitoring device
CN102061933A (en) Long drilling positioning construction process
KR20110024145A (en) Drilling device for ground improvement, construction method thereof and construction management system
CN106771066A (en) The analogue experiment installation and synergic monitoring method of mining overburden motion influence ore deposit pressure
CN106120797B (en) Hydrous fluids continuous steel frame aqueduct pier foundation grouting construction method
CN108468532A (en) A kind of petroleum pipeline sand control dredging in-pipe robot system and its method thin clearly
CN111236921B (en) Monitoring system and method for rotary jetting grouting reinforcement process
CN209129602U (en) Horizontal well horizontal segment dynamic circulation imitative experimental appliance
CN207377495U (en) A kind of multifunctional testing and experiment porch for jet drilling desk research
CN201835799U (en) Coal bed gas well screw type discharging and producing system based on internet of things
CN104265368B (en) Increase resistance water conservancy diversion and creep into the outstanding discharge method of prediction coal road and device thereof continuously
CN111911131A (en) Drilling machine control system for foundation stabilization and control method thereof
CN203891890U (en) Water pressure and air pressure balance control system of shield tunneling machine in water-rich stratum
CN203224223U (en) Device for detecting layer separation of surrounding rock based on displacement sensors and wireless transmission

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SHANGHAI TUNNEL ENGINEERING CO., LTD.

Free format text: FORMER OWNER: SHANGHAI TUNNEL ENGINEERING CO LTD

Effective date: 20150119

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 200082 TO: 200232

TR01 Transfer of patent right

Effective date of registration: 20150119

Address after: 200232 Shanghai Wanping Road No. 1099

Patentee after: SHANGHAI TUNNEL ENGINEERING CO., LTD.

Address before: 200082, 118, Dalian Road, Shanghai, Shanghai, Yangpu District, Yangpu District

Patentee before: Shanghai Tunnel Engineering Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190726

Address after: 200000 5th Floor, No. 1099 Wanping South Road, Xuhui District, Shanghai

Co-patentee after: SHANGHAI TUNNEL FOUNDATION ENGINEERING CO., LTD.

Patentee after: SHANGHAI TUNNEL ENGINEERING CO., LTD.

Address before: 200232 Shanghai Wanping Road No. 1099

Patentee before: SHANGHAI TUNNEL ENGINEERING CO., LTD.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20130619