CN202033872U - Danger warning device for freezing-process construction - Google Patents
Danger warning device for freezing-process construction Download PDFInfo
- Publication number
- CN202033872U CN202033872U CN2011201146549U CN201120114654U CN202033872U CN 202033872 U CN202033872 U CN 202033872U CN 2011201146549 U CN2011201146549 U CN 2011201146549U CN 201120114654 U CN201120114654 U CN 201120114654U CN 202033872 U CN202033872 U CN 202033872U
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- soil pressure
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- warning device
- signal converter
- danger warning
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Abstract
The utility model relates to a danger warning device for freezing-process construction. The danger warning device comprises a soil pressure measurer, a signal converter, a computer and an alarm, wherein the soil pressure measurer comprises a steel sheet and a strain foil, the strain foil is pasted onto the steel sheet and is equal to the steel sheet in length, the soil pressure measurer is connected with the signal converter through a data wire, and the signal converter is connected with the alarm through a data wire. The steel sheet is 2cm in width, 5mm in thickness and 5cm in length. The soil pressure measurer is deeply buried in subsurface soil along the length of the soil pressure measurer. The danger warning device disclosed by the utility model has the beneficial effects of capability of timely reminding construction personnel of attention to safety, simpleness and feasibility in operation, low manufacture cost, and convenience in use in actual construction, and more importantly, the danger warning device provides accurate information, can effectively provide safety guarantee for the freezing-process construction and has wide applicability.
Description
Technical field
The utility model relates to a kind of hydropac device, especially a kind of construction freezing method hydropac device.
Background technology
Artificial stratum frozen construction method is to utilize the method for artificial cooling, the temperature that reduces the soil body makes aquifer form fluid-tight frozen soil wall, thereby stable and fluid-tight structure have been constructed in the outside, zone that expection will be excavated, safeguard excavation face soil stabilization on every side with this structure, opposing surrounding soil pressure and water pressure prevent the underground water invasion.
Artificial in recent years stratum freezing technology more and more is applied in colliery engineering, sub., building excavations and foundations, harbour seashore and offshore engineering under the complex geological condition, the hydraulic engineering etc., especially in seashore area, riverbank, because groundwater level depth is more shallow and the stratum is weak, in this complex environment, construct, it is stable that normal construction method can not be kept surrounding soil, and overcoming in each of constructing in this particular surroundings that artificial freezing technology can be successful is difficult.
Abroad, the dark Tunnel Engineering of defeated loud diameter in Mi Woji city, U.S. Wei Sikangsen state, the subway construction engineering of Spain Valencia, the St. Petersburg, Russia subway engineering, the Munich, Germany subway engineering, the application that Japan Nagoya market underground transmission Tunnel Engineering or the like is all successful construction freezing method.China is successively at Beijing Metro " multiple-eight " south, the big northern kiln car of line station tunnel construction sections since the nineties in 20th century, No. 2 lines of Shanghai Underground, Tianjin Underground is crossed the Ziyahe River section, No. 8 line Quyang of Shanghai Underground way station is to football station, Hongkou running tunnel service channel, profit is raised Bridge South Anchor Foundation construction, successful Application has been turned back in the engineering such as line by No. 3 line Milky Way of Guangzhou Underground passenger station artificial frozen ground reinforcement technique.Though construction freezing method is applied to the engineering construction of China the history in more than 50 year is arranged, very great engineering accident has still appearred, Important Project accident as No. four lines of Shanghai Underground that took place on July 1st, 2003, it is the maximum since the establishment of the nation engineering accident in Shanghai, direct economic loss is more than 1.5 hundred million yuan, and the Hangzhou Subway cave-in accident had caused great casualties and economic loss in 2008.Most importantly guarantee the safety of construction in the engineering construction, any engineering accident is not silent, certainly have a lot of omens in advance, crack, ground for example, the road surface sinks or the like, should take urgent remedial measures when these phenomenons occurring, yet often has the workmen to be unaware of dangerous existence in construction, therefore be necessary very much a hydropac device is installed in construction, remind the existence of workmen's potential safety hazard in good time.
The utility model content
In order to remind the existence of workmen's potential safety hazard when danger occurring in good time, the utility model provides a kind of construction freezing method hydropac device.
The technical solution adopted in the utility model is: comprise soil pressure measuring appliance, signal converter, computing machine, alarm, described soil pressure measuring appliance comprises steel disc and foil gauge, be adhesive with foil gauge on the steel disc, foil gauge and steel disc are isometric, described soil pressure measuring appliance is connected by data line with signal converter, and described signal converter is connected by data line with warning horn.
The wide 2cm of described steel disc, thick 5mm, long 5m.
Described soil pressure measuring appliance is buried in underground soil along its length.
The beneficial effects of the utility model are, can remind the workmen to take care timely, and operation is simple for it, cost is low, and is easy to use in actual engineering, the more important thing is that the information that he provides is accurate, can be effectively for construction freezing method provides safety guarantee, have practicality widely.
Description of drawings:
Fig. 1 is a structure connection diagram of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
By shown in Figure 1, a kind of construction freezing method hydropac device, it is characterized in that, comprise soil pressure measuring appliance 1, signal converter 2, computing machine 3, alarm 4, described soil pressure measuring appliance 1 comprises steel disc 5 and foil gauge 6, be adhesive with foil gauge 6 on the steel disc 5, foil gauge 6 is isometric with steel disc 5, described soil pressure measuring appliance 1 and signal converter 2 are connected by data line, at first in dark soil, bury data acquisition unit 1, each data acquisition unit 1 has been connected on the data converter 2, again data converter 2 and alarm 4 have been connected to computing machine 3, in computing machine 3, number corresponding program simultaneously, draw the pressure state of the underground soil body at last by computing machine 3.
The underground works accident generally all can cause crack, ground or sedimentation, and the both is the performance that underground soil pressure changes.When producing crack or sedimentation, soil just changes to the extruding force of steel disc, because foil gauge 6 is still in elastic range, its distortion also can change because of the variation of extruding force, this moment, the resistance of whole foil gauge 6 also can change, so electric current can increase or reduce, and signal is transferred to signal converter 2, signal converter 2 is a digital signal with the electrical signal conversion that transmits, and reaches computing machine 3; Signal converter 2 and warning horn 4 are connected by data line.Computing machine 3 draws the soil pressure in this moment by the program computational analysis of having finished, and the time dependent curve of demonstration soil pressure, when the rate of change of soil pressure surpasses that critical value or soil pressure sharply increase or when being reduced to critical value, explanatorily descend the soil body to play pendulum, computing machine 3 can start warning horn 4 automatically.
Because the scope of construction is bigger, can be in construction area many places installation data collector 1 and warning horn 4, its signal is pooled to signal converter 2 together, reaches computing machine 3 again and analyzes.When the somewhere soil body played pendulum, computing machine 3 can start the warning horn 4 there automatically.
Claims (3)
1. construction freezing method hydropac device, it is characterized in that, comprise soil pressure measuring appliance (1), signal converter (2), computing machine (3), alarm (4), described soil pressure measuring appliance (1) comprises steel disc (5) and foil gauge (6), be adhesive with foil gauge (6) on the steel disc (5), foil gauge (6) is isometric with steel disc (5), described soil pressure measuring appliance (1) is connected by data line with signal converter (2), and described signal converter (2) is connected by data line with warning horn (4).
2. construction freezing method hydropac device according to claim 1 is characterized in that, the wide 2cm of described steel disc (5), thick 5mm, long 5m.
3. construction freezing method hydropac device according to claim 1 is characterized in that described soil pressure measuring appliance (1) is buried in underground soil along its length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201146549U CN202033872U (en) | 2011-04-19 | 2011-04-19 | Danger warning device for freezing-process construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201146549U CN202033872U (en) | 2011-04-19 | 2011-04-19 | Danger warning device for freezing-process construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033872U true CN202033872U (en) | 2011-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201146549U Expired - Fee Related CN202033872U (en) | 2011-04-19 | 2011-04-19 | Danger warning device for freezing-process construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202033872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655449A (en) * | 2017-09-20 | 2018-02-02 | 武汉卡米珈科技有限公司 | For electric power tower bar settlement monitoring device and installation method |
| CN110513960A (en) * | 2019-09-23 | 2019-11-29 | 沈阳工程学院 | A kind of refrigerator food thawing alarm set |
-
2011
- 2011-04-19 CN CN2011201146549U patent/CN202033872U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655449A (en) * | 2017-09-20 | 2018-02-02 | 武汉卡米珈科技有限公司 | For electric power tower bar settlement monitoring device and installation method |
| CN110513960A (en) * | 2019-09-23 | 2019-11-29 | 沈阳工程学院 | A kind of refrigerator food thawing alarm set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20120419 |