CN105258824A - Water and soil pressure monitoring rod for shield tunnel - Google Patents
Water and soil pressure monitoring rod for shield tunnel Download PDFInfo
- Publication number
- CN105258824A CN105258824A CN201510746205.9A CN201510746205A CN105258824A CN 105258824 A CN105258824 A CN 105258824A CN 201510746205 A CN201510746205 A CN 201510746205A CN 105258824 A CN105258824 A CN 105258824A
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- pressure sensor
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- monitoring rod
- soil pressure
- shield tunnel
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- Excavating Of Shafts Or Tunnels (AREA)
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Abstract
The invention relates to a water and soil pressure monitoring rod for a shield tunnel, and the rod comprises a pressure monitoring rod body. The pressure monitoring rod body comprises a cylindrical rod body, an end compartment connected to one end part of the cylindrical rod body, and a sealing box which is disposed at the other end of the cylindrical rod body in a sleeving manner. The interior of the end compartment is provided with a soil pressure sensor and a pore water pressure sensor, wherein leading-out wires disposed on the soil pressure sensor and the gap water pressure sensor pass through the cylindrical rod body to be connected with a strain gauge. During soil pressure monitoring, the pressure monitoring rod body sequentially passes through a pipe piece and a grouting layer to reach soil. A joint of the pipe piece with the pressure monitoring rod body is sealed by the sealing box. The soil pressure sensor and the pore water pressure sensor are used for measuring soil pressure and pore water pressure at the same time, and the measurement results are transmitted to the strain gauge through the leading-out wires. Compared with the prior art, the rod is convenient to install and use, is high in reliability, and can measure the soil pressure and the pore water pressure at the same time.
Description
Technical field
The present invention relates to tunneling shield parameter measuring technical field, especially relate to a kind of shield tunnel Water And Earth Pressures monitoring rod.
Background technology
Shield construction is the Fully-mechanized construction method of one in the construction of tunnel excavation method, it is advanced in ground by Shield-type machinery, prevent toward caving in tunnel by shield structure shell and section of jurisdiction supporting surrounding country rock, carry out soil excavation at excavation face front topping machanism simultaneously, transport outside hole by unearthed machinery, by lifting jack in rear pressurization jacking, and assembled precast concrete section of jurisdiction, form a kind of mechanized construction method of tunnel structure, due to the superiority of shield construction in technology and safety, be widely used in Tunnel Engineering at present.
Have employed special technique-grouting behind shaft or drift lining in shield tunnel construction, grouting layer has wrapped up tunnel surface.In traditional tunnel duct piece surface soil method for testing pressure, by earth pressure gauge pre-plugged on surface, section of jurisdiction.Earth pressure gauge by grouting behind shaft or drift lining layer parcel wherein, affect the reliability of Monitoring on Earth Pressure result, and monitoring target is single.Therefore, be badly in need of seeking a kind of measuring technology and the equipment that can monitor tunnel perimeter soil body real bearing state.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and provide a kind of easy to install, reliability is high, can measure simultaneously the shield tunnel Water And Earth Pressures of soil pressure and pore water pressure monitoring rod.
Object of the present invention can be achieved through the following technical solutions:
A kind of shield tunnel Water And Earth Pressures monitoring rod, for measuring soil pressure and the pore water pressure of the soil body, be connected with strainmeter, comprise pressure monitoring rod barred body, described pressure monitoring rod barred body comprises the shaft-like barred body of cylindricality, is connected to the end compartments of end, cylindricality shaft-like barred body one end and is set in the seal box of the shaft-like barred body other end of cylindricality, be provided with soil pressure sensor and pore water pressure sensor in described end compartments, described soil pressure sensor is connected with strainmeter through the shaft-like barred body of cylindricality with the extraction wire that pore water pressure sensor is arranged;
When carrying out Water And Earth Pressures monitoring, pressure monitoring rod barred body passes section of jurisdiction, grouting layer successively to the soil body, the junction of section of jurisdiction and pressure monitoring rod barred body is sealed by seal box, measure soil pressure and pore water pressure by soil pressure sensor and pore water pressure sensor, measurement result is by drawing wire transmission to strainmeter simultaneously.
Described end compartments comprises barrel-shaped housing and dividing plate, barrel-shaped housing is divided into the first compartment and the second compartment by described dividing plate, described soil pressure sensor is arranged in the first compartment, the stress surface of soil pressure sensor directly contacts with the soil body, described pore water pressure sensor is arranged in the second compartment, and the sidewall of described second compartment is provided with some circular permeable holes.
Described soil pressure sensor and dividing plate tight cementing fixing.
The base plate of described pore water pressure sensor and barrel-shaped housing is tight cementing fixing.
The base plate of described dividing plate and barrel-shaped housing is equipped with for the hole through extraction wire, the hole place of the base plate of described barrel-shaped housing is by epoxy sealing.
Described seal box comprises sealing front cabinet and sealing back box, described sealing front cabinet is fixed on the built-in fitting at grouting hole place, section of jurisdiction, described sealing back box is screwed onto outside sealing front cabinet, and the junction of described sealing front cabinet, sealing back box, the shaft-like barred body of cylindricality is filled with butter packing.
The diameter of described end compartments is more than or equal to the diameter of the shaft-like barred body of cylindricality.
Described soil pressure sensor is miniature soil pressure cell.
Described pore water pressure sensor is miniature pore pressure gauge.
Compared with prior art, the present invention has following characteristics:
1) the present invention is provided with soil pressure sensor and pore water pressure sensor, can measure soil pressure and pore water pressure simultaneously, overcomes the difficult problem that traditional measurement method is difficult to realize the water pressure measurement of surface pore, section of jurisdiction;
2) soil pressure sensor and pore water pressure sensor is integrated is arranged in same position, overcomes the shortcoming that traditional measurement method cannot realize same position;
3) the present invention can measure soil body general pressure and pore water pressure at synchronization simultaneously, directly obtains soil body effective stress;
4) adopt miniature soil pressure sensor and pore water pressure sensor, integrated volume is little, overcomes the drawback that the disturbance of classic method boring sensor installation formation virgin state of stress is large;
5) before soil pressure rod is installed, the degree of depth that the drill bit of rig enters the soil body through section of jurisdiction can regulate according to measurement needs, and do not restrict by soil pressure rod length for mode that is fixing and sealing soil pressure rod, therefore the buried depth of soil pressure rod is controlled, compared with the mode of traditional pre-buried sensor, measuring point has more dirigibility.
6) sensor can be delivered to beyond tunnel synchronous grouting layer, measure the true soil pressure and pore water pressure that do not affect by grouting layer, overcome the defect that the traditional measurement method installing soil pressure sensor on surface, section of jurisdiction cannot measure true soil pressure;
7) the present invention utilizes grouting hole prefabricated on section of jurisdiction to carry out the installation of Monitoring on Earth Pressure rod, without the need to holing specially on section of jurisdiction, overcomes the destruction that classic method boring sensor installation causes section of jurisdiction.
8) install after built tunnel piping, without the need to as classic method at section of jurisdiction production phase pre-buried sensor, overcome the low and drawback that cannot change of the pre-buried survival rate of sensor.
9) Monitoring on Earth Pressure rod is threaded connection and is fixed on the built-in fitting of grouting hole, with finishing convenient dismounting, recovers the original state in section of jurisdiction.
10) the present invention is applied widely, and except the Water And Earth Pressures monitoring that can be applicable to shield tunnel, other needs to carry out the field of Water And Earth Pressures monitoring also to can be applicable to foundation ditch, wall etc.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of end compartments of the present invention;
Fig. 3 is the structural representation of seal box of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the present embodiment provides a kind of shield tunnel Water And Earth Pressures to monitor rod, is arranged in grouting hole, and one end contacts with soil body A through section of jurisdiction C, grouting layer B successively, and for measuring soil pressure and the pore water pressure of soil body A, the other end is connected with strainmeter.This shield tunnel Water And Earth Pressures monitoring rod comprises pressure monitoring rod barred body 3, pressure monitoring rod barred body 3 comprises the shaft-like barred body of cylindricality 4, is connected to the end compartments 8 of end, cylindricality shaft-like barred body 4 one end and is set in the seal box 7 of cylindricality shaft-like barred body 4 other end, the diameter of end compartments 8 is more than or equal to the diameter of the shaft-like barred body 4 of cylindricality, be provided with soil pressure sensor 1 and pore water pressure sensor 2 in end compartments 8, soil pressure sensor 1 is connected with strainmeter through the shaft-like barred body 4 of cylindricality with the extraction wire 5 that pore water pressure sensor 2 is arranged.In the present embodiment, soil pressure sensor 1 is miniature soil pressure cell, and pore water pressure sensor 2 is miniature pore pressure gauge, and integrated volume is little.
As shown in Figure 2, end compartments 8 comprises barrel-shaped housing and dividing plate, barrel-shaped housing is divided into the first compartment and the second compartment by dividing plate, soil pressure sensor 1 is arranged in the first compartment, the stress surface of soil pressure sensor 1 directly contacts with soil body A, pore water pressure sensor 2 is arranged in the second compartment, and the sidewall of the second compartment is provided with some circular permeable holes 9, and soil body pore water can be penetrated into around miniature earth pressure gauge fully naturally.Soil pressure sensor 1 is tight cementing fixing with dividing plate.Pore water pressure sensor 2 is tight cementing fixing with the base plate of barrel-shaped housing.The base plate of dividing plate and barrel-shaped housing is equipped with for the hole through extraction wire, the hole place of the base plate of barrel-shaped housing is sealed by epoxy resin 6.
As shown in Figure 3, seal box 7 comprises sealing front cabinet 14 and sealing back box 12, sealing front cabinet 14 is fixed on by screw thread 10 on the built-in fitting 11 at grouting hole place, section of jurisdiction, sealing back box 12 is screwed onto outside sealing front cabinet 14 by screw thread 15, and the junction of sealing front cabinet 14, sealing back box 12, the shaft-like barred body 4 of cylindricality is filled with butter packing 13.Because butter packing 13 has certain plastoelastic material, when its sealing back box 12 is in the process be connected with sealing front cabinet 14, butter packing 13 is squeezed, with soil pressure rod barred body 3 close contact, to realize fixing and water shutoff function.
When adopting above-mentioned shield tunnel Water And Earth Pressures monitoring rod to carry out Monitoring on Earth Pressure, pressure monitoring rod barred body 3 passes section of jurisdiction C, grouting layer B successively to soil body A, the junction of section of jurisdiction C and pressure monitoring rod barred body 3 is sealed by seal box 7, measure soil pressure and pore water pressure by soil pressure sensor 1 and pore water pressure sensor 2, measurement result transfers to strainmeter by drawing wire 5 simultaneously.
Above-mentioned Water And Earth Pressures monitoring rod is except the Water And Earth Pressures monitoring that can be applicable to shield tunnel, and other needs to carry out the field of Water And Earth Pressures monitoring also to can be applicable to foundation ditch, wall etc., and principle is identical with the present embodiment.
The above-mentioned description to embodiment can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art, according to announcement of the present invention, do not depart from improvement that category of the present invention makes and amendment all should within protection scope of the present invention.
Claims (9)
1. a shield tunnel Water And Earth Pressures monitoring rod, for measuring soil pressure and the pore water pressure of the soil body, be connected with strainmeter, comprise pressure monitoring rod barred body (3), it is characterized in that, described pressure monitoring rod barred body (3) comprises the shaft-like barred body of cylindricality (4), be connected to the end compartments (8) of the shaft-like barred body of cylindricality (4) end, one end and be set in the seal box (7) of the shaft-like barred body of cylindricality (4) other end, soil pressure sensor (1) and pore water pressure sensor (2) is provided with in described end compartments (8), described soil pressure sensor (1) is connected with strainmeter through the shaft-like barred body of cylindricality (4) with the upper extraction wire (5) arranged of pore water pressure sensor (2),
When carrying out Water And Earth Pressures monitoring, pressure monitoring rod barred body (3) passes section of jurisdiction, grouting layer successively to the soil body, the junction of section of jurisdiction and pressure monitoring rod barred body (3) is sealed by seal box (7), measure soil pressure and pore water pressure by soil pressure sensor (1) and pore water pressure sensor (2), measurement result transfers to strainmeter by drawing wire (5) simultaneously.
2. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, described end compartments (8) comprises barrel-shaped housing and dividing plate, barrel-shaped housing is divided into the first compartment and the second compartment by described dividing plate, described soil pressure sensor (1) is arranged in the first compartment, the stress surface of soil pressure sensor (1) directly contacts with the soil body, described pore water pressure sensor (2) is arranged in the second compartment, and the sidewall of described second compartment is provided with some circular permeable holes (9).
3. shield tunnel Water And Earth Pressures monitoring rod according to claim 2, is characterized in that, described soil pressure sensor (1) is tight cementing fixing with dividing plate.
4. shield tunnel Water And Earth Pressures monitoring rod according to claim 2, is characterized in that, described pore water pressure sensor (2) is tight cementing fixing with the base plate of barrel-shaped housing.
5. shield tunnel Water And Earth Pressures monitoring rod according to claim 2, it is characterized in that, the base plate of described dividing plate and barrel-shaped housing is equipped with for the hole through extraction wire, the hole place of the base plate of described barrel-shaped housing is sealed by epoxy resin (6).
6. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, described seal box (7) comprises sealing front cabinet (14) and sealing back box (12), described sealing front cabinet (14) is fixed on the built-in fitting (11) at grouting hole place, section of jurisdiction, described sealing back box (12) is screwed onto sealing front cabinet (14) outward, and the junction of described sealing front cabinet (14), sealing back box (12), the shaft-like barred body of cylindricality (4) is filled with butter packing (13).
7. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, the diameter of described end compartments (8) is more than or equal to the diameter of the shaft-like barred body of cylindricality (4).
8. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, described soil pressure sensor (1) is miniature soil pressure cell.
9. shield tunnel Water And Earth Pressures monitoring rod according to claim 1, it is characterized in that, described pore water pressure sensor (2) is miniature pore pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510746205.9A CN105258824B (en) | 2015-11-05 | 2015-11-05 | A kind of shield tunnel Water And Earth Pressures monitoring rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510746205.9A CN105258824B (en) | 2015-11-05 | 2015-11-05 | A kind of shield tunnel Water And Earth Pressures monitoring rod |
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| Publication Number | Publication Date |
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| CN105258824A true CN105258824A (en) | 2016-01-20 |
| CN105258824B CN105258824B (en) | 2018-04-13 |
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| CN201510746205.9A Active CN105258824B (en) | 2015-11-05 | 2015-11-05 | A kind of shield tunnel Water And Earth Pressures monitoring rod |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106052946A (en) * | 2016-07-27 | 2016-10-26 | 西南交通大学 | Self entering type surrounding rock pore water pressure sensing device |
| CN106855446A (en) * | 2017-02-22 | 2017-06-16 | 北京城建集团有限责任公司 | The longitudinal stress monitoring system and monitoring method of minor diameter aqueduct shield duct piece |
| CN107060814A (en) * | 2017-04-25 | 2017-08-18 | 中南大学 | A kind of prefabricated shield duct piece earth pressure gauge method for embedding |
| CN108225757A (en) * | 2018-01-09 | 2018-06-29 | 上海应用技术大学 | A kind of superimposing thread tunnel influences each other tunnel segment structure mechanical stae field testing procedure |
| CN108426746A (en) * | 2018-06-14 | 2018-08-21 | 秀盛源（天津）水运工程技术有限公司 | Underwater Mud Measurement Sampler |
| CN108548683A (en) * | 2018-03-23 | 2018-09-18 | 北京交通大学 | Monitoring on Earth Pressure system and test method for shield model test machine |
| CN108894795A (en) * | 2018-07-14 | 2018-11-27 | 中铁二院工程集团有限责任公司 | Water pressure monitoring device is safeguarded for Karst Tunnel difference lining thickness |
| CN109001421A (en) * | 2018-05-30 | 2018-12-14 | 西南交通大学 | A kind of soil pressure and monitoring pore water pressure device |
| CN109488331A (en) * | 2018-12-12 | 2019-03-19 | 中铁十八局集团有限公司 | Form duct pieces of shield tunnel and its forces testing method |
| CN109506814A (en) * | 2018-11-29 | 2019-03-22 | 国家电网公司 | A kind of water-tight device and installation method of shield tunnel Water And Earth Pressures monitoring device |
| CN110044529A (en) * | 2019-03-28 | 2019-07-23 | 天津大学 | A kind of outer lateral earth pressure measurement method of shield tunnel |
| CN110778329A (en) * | 2019-11-01 | 2020-02-11 | 中铁隧道局集团有限公司 | Tunnel segment measuring element wire sealing device and using method thereof |
| CN110854757A (en) * | 2019-11-15 | 2020-02-28 | 招商局重庆公路工程检测中心有限公司 | A wiring trough for mandrel vibration forming pipe jacking and installation method thereof, core mold vibration forming pipe jacking and sensor installation method |
| CN111271122A (en) * | 2020-03-25 | 2020-06-12 | 上海同岩土木工程科技股份有限公司 | Method for monitoring external water pressure of lining |
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| CN113188692A (en) * | 2021-04-29 | 2021-07-30 | 中铁南方投资集团有限公司 | Soil and water pressure monitoring early warning device |
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| CN113654710A (en) * | 2021-10-19 | 2021-11-16 | 长江水利委员会长江科学院 | Rapid installation device for monitoring water pressure outside underground engineering and application method |
| CN115248184A (en) * | 2021-12-27 | 2022-10-28 | 山东建筑大学 | Method and device for rapidly measuring soil body mechanical parameters in shield construction tunnel |
| CN116519444A (en) * | 2023-04-23 | 2023-08-01 | 北京工业大学 | Model test shield segment capable of realizing water and soil pressure monitoring |
| CN116558696A (en) * | 2023-07-11 | 2023-08-08 | 中铁十四局集团大盾构工程有限公司 | Water and soil pressure monitoring system and method for shield construction process |
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| CN118050113A (en) * | 2024-04-09 | 2024-05-17 | 云南建投中航建设有限公司 | Device and method for testing external water pressure of water-rich fault tunnel |
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| CN106052946A (en) * | 2016-07-27 | 2016-10-26 | 西南交通大学 | Self entering type surrounding rock pore water pressure sensing device |
| CN106855446A (en) * | 2017-02-22 | 2017-06-16 | 北京城建集团有限责任公司 | The longitudinal stress monitoring system and monitoring method of minor diameter aqueduct shield duct piece |
| CN106855446B (en) * | 2017-02-22 | 2019-04-09 | 北京城建集团有限责任公司 | The longitudinal stress monitoring system and monitoring method of minor diameter aqueduct shield duct piece |
| CN107060814B (en) * | 2017-04-25 | 2018-11-23 | 中南大学 | A kind of prefabricated shield duct piece earth pressure gauge method for embedding |
| CN107060814A (en) * | 2017-04-25 | 2017-08-18 | 中南大学 | A kind of prefabricated shield duct piece earth pressure gauge method for embedding |
| CN108225757A (en) * | 2018-01-09 | 2018-06-29 | 上海应用技术大学 | A kind of superimposing thread tunnel influences each other tunnel segment structure mechanical stae field testing procedure |
| CN108548683A (en) * | 2018-03-23 | 2018-09-18 | 北京交通大学 | Monitoring on Earth Pressure system and test method for shield model test machine |
| CN109001421A (en) * | 2018-05-30 | 2018-12-14 | 西南交通大学 | A kind of soil pressure and monitoring pore water pressure device |
| CN108426746A (en) * | 2018-06-14 | 2018-08-21 | 秀盛源（天津）水运工程技术有限公司 | Underwater Mud Measurement Sampler |
| CN108894795A (en) * | 2018-07-14 | 2018-11-27 | 中铁二院工程集团有限责任公司 | Water pressure monitoring device is safeguarded for Karst Tunnel difference lining thickness |
| CN109506814A (en) * | 2018-11-29 | 2019-03-22 | 国家电网公司 | A kind of water-tight device and installation method of shield tunnel Water And Earth Pressures monitoring device |
| CN109506814B (en) * | 2018-11-29 | 2021-05-14 | 国家电网公司 | Waterproof device and installation method of shield tunnel water and soil pressure monitoring equipment |
| CN109488331A (en) * | 2018-12-12 | 2019-03-19 | 中铁十八局集团有限公司 | Form duct pieces of shield tunnel and its forces testing method |
| CN110044529A (en) * | 2019-03-28 | 2019-07-23 | 天津大学 | A kind of outer lateral earth pressure measurement method of shield tunnel |
| CN110778329A (en) * | 2019-11-01 | 2020-02-11 | 中铁隧道局集团有限公司 | Tunnel segment measuring element wire sealing device and using method thereof |
| CN110854757A (en) * | 2019-11-15 | 2020-02-28 | 招商局重庆公路工程检测中心有限公司 | A wiring trough for mandrel vibration forming pipe jacking and installation method thereof, core mold vibration forming pipe jacking and sensor installation method |
| CN111271122A (en) * | 2020-03-25 | 2020-06-12 | 上海同岩土木工程科技股份有限公司 | Method for monitoring external water pressure of lining |
| CN112557074A (en) * | 2020-11-26 | 2021-03-26 | 宿迁小鲤工业设计有限公司 | BIM-based assembly type mounting detection device for building and matching system thereof |
| CN113188692B (en) * | 2021-04-29 | 2022-11-18 | 中铁南方投资集团有限公司 | A water and soil pressure monitoring and early warning device |
| CN113188692A (en) * | 2021-04-29 | 2021-07-30 | 中铁南方投资集团有限公司 | Soil and water pressure monitoring early warning device |
| CN113309576A (en) * | 2021-06-30 | 2021-08-27 | 上海乾瑞科技有限公司 | Intelligent probe rod complete equipment and method for monitoring and early warning of perturbation of tunnel surrounding environment |
| CN113654710A (en) * | 2021-10-19 | 2021-11-16 | 长江水利委员会长江科学院 | Rapid installation device for monitoring water pressure outside underground engineering and application method |
| CN115248184A (en) * | 2021-12-27 | 2022-10-28 | 山东建筑大学 | Method and device for rapidly measuring soil body mechanical parameters in shield construction tunnel |
| CN115248184B (en) * | 2021-12-27 | 2024-08-16 | 山东建筑大学 | A method and device for quickly measuring soil mechanical parameters in shield tunnel construction |
| CN116519444A (en) * | 2023-04-23 | 2023-08-01 | 北京工业大学 | Model test shield segment capable of realizing water and soil pressure monitoring |
| CN116558696A (en) * | 2023-07-11 | 2023-08-08 | 中铁十四局集团大盾构工程有限公司 | Water and soil pressure monitoring system and method for shield construction process |
| CN116558696B (en) * | 2023-07-11 | 2023-09-26 | 中铁十四局集团大盾构工程有限公司 | Water and soil pressure monitoring system and method for shield construction process |
| CN117387568A (en) * | 2023-12-13 | 2024-01-12 | 山东省国土空间生态修复中心(山东省地质灾害防治技术指导中心、山东省土地储备中心) | Three-dimensional settlement monitoring device and method |
| CN117387568B (en) * | 2023-12-13 | 2024-06-11 | 山东省国土空间生态修复中心(山东省地质灾害防治技术指导中心、山东省土地储备中心) | Three-dimensional settlement monitoring device and method |
| CN118050113A (en) * | 2024-04-09 | 2024-05-17 | 云南建投中航建设有限公司 | Device and method for testing external water pressure of water-rich fault tunnel |
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| CN105258824B (en) | 2018-04-13 |
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Effective date of registration: 20190104 Address after: Room 2045, 2nd floor, No. 3 Lane 1473, Zhenguang Road, Putuo District, Shanghai, 2003 Patentee after: Shanghai Ling Yun Civil Engineering Consulting Co. Ltd. Address before: Room 12-15, 17/F, Lane 3, 1298, Changde Road, Putuo District, Shanghai, 2003 Patentee before: Bai Yun |