CN204753560U - Pressure differential sedimentometer and pressure differential subside measuring device - Google Patents
Pressure differential sedimentometer and pressure differential subside measuring device Download PDFInfo
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- CN204753560U CN204753560U CN201520468336.0U CN201520468336U CN204753560U CN 204753560 U CN204753560 U CN 204753560U CN 201520468336 U CN201520468336 U CN 201520468336U CN 204753560 U CN204753560 U CN 204753560U
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- pressure reduction
- reduction settlement
- settlement gauge
- measuring unit
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Abstract
The utility model relates to a civil engineering reconnoitres technical field, is a pressure differential sedimentometer and pressure differential subside measuring device particularly, and pressure differential sedimentometer upper portion is equipped with measuring unit, and measuring unit connects the bottom fluid pipeline, and the fluid pipeline is the shape of falling T, and both ends are equipped with the drain mouth respectively about the fluid pipeline, and measuring unit one side is equipped with the air guide mouth. Measuring unit is a sealed cavity structure. Fluid pipeline upper portion is equipped with O shape sealing washer, and O shape sealing washer is connected through densification screw rod and pressure differential sedimentometer casing. The measuring unit top is equipped with data communication interface and power supply interface. Compared with the prior art, the utility model, its advantage lies in: each pressure differential sedimentometer drain mouth is consecutive, and through the pressure differential of check point and no. 0 pressure differential sedimentometer and the change volume of the discrepancy in elevation, precision measurement sedimentation value, inspection surface subsidence degree can satisfy second -class settlement measurement requirement.
Description
[technical field]
The utility model relates to civil engineering exploratory techniques field, specifically a kind of pressure reduction settlement gauge.
[background technology]
Along with capital works, the development of industry and civilian construction industry, various complexity and large-scale engineering works is increasing, speedway, municipal road, the coverage rate of railway is also more and more wider, the construction of engineering works, change the original state in ground, and the ground for building is applied with certain pressure, this just will inevitably cause the distortion of ground and surrounding formation, cause foundation settlement, foundation settlement refers to foundation soil densification and the foundation surface that causes sinks under subsidiary stress effect, excessive sedimentation, particularly differential settlement, building run-off the straight can be made, pavement cracking consequently can not normally use.In order to the safety of the normal service life and building that ensure highway and building, and provide reliable data and corresponding settlement parameter for later prospective design construction, the necessity of settlement observation and importance are further obvious.Settlement observation can be familiar with the impact of various factors on earth's surface and soil deformation, foundation is provided for improving construction technology and revising construction parameter, understand the grand sunken situation in earth's surface and Changing Pattern thereof, check whether the surface settlement caused of constructing controls in allowed band, control surface settlement and horizontal movement and the impact on Adjacent Buildings thereof, to reduce construction cost, set up early warning mechanism, avoid structure and Environmental security accident to cause the increase of construction cost.
[summary of the invention]
The purpose of this utility model is the impact for foundation settlement in capital works, industry and civilian construction industry, and design is a kind of can be understood and monitor the grand sunken situation in earth's surface and Changing Pattern thereof, the pressure reduction settlement gauge measure accurately, avoided security incident to occur.
To achieve these goals, design a kind of pressure reduction settlement gauge, pressure reduction settlement gauge top is provided with measuring unit, connects fluid pipeline bottom measuring unit, and fluid pipeline is inverted T-shaped, and two ends, fluid pipeline left and right are respectively equipped with fluid guidance port, and measuring unit side is provided with air guide port.
Described measuring unit is a sealed cavity structure.
Described fluid pipeline top is provided with O-ring seals, and O-ring seals is connected with pressure reduction settlement gauge housing by densification screw rod.
Described measuring unit top is provided with data communication interface and power supply interface.
Tank and No. 0 pressure reduction settlement gauge are arranged at and relatively settling zone do not occur, bottom of gullet connects No. 0 pressure reduction settlement gauge one end fluid guidance port by catheter, some pressure reduction settlement gauges are respectively equipped with in some sedimentations place to be measured, by catheter, pressure reduction settlement gauge fluid guidance port is interconnected successively between all the other pressure reduction settlement gauges, first pressure reduction settlement gauge connects No. 0 pressure reduction settlement gauge other end fluid guidance port by catheter, the fluid guidance port of last pressure reduction settlement gauge passes through seal for pipe joints, described tank bottom is provided with liquid, tank top is provided with air chamber, air chamber side connects air pump, air chamber opposite side is provided with gas outlet, the gas outlet of air chamber connects the air guide port of No. 0 pressure reduction settlement gauge and all the other pressure reduction settlement gauges respectively by wireway.
No. 0 pressure reduction settlement gauge transmits electric supply installation with all the other pressure reduction settlement gauge top data communication interfaces and power supply interface by holding wire connection data.
The utility model compared with the existing technology, its advantage is: each pressure reduction settlement gauge fluid guidance port is connected successively, by test point and the pressure differential of No. 0 pressure reduction settlement gauge and the variable quantity of the discrepancy in elevation, accurate measurement sedimentation value, checks surface settlement degree, can meet second-class settlement measurement requirement, single pressure reduction settlement gauge is provided with data communication interface and power supply interface, facilitate data to transmit, the sedimentation value energy instantaneous transmission of measurement to relevant monitoring equipment, thus avoids the generation of security incident.
[accompanying drawing explanation]
Fig. 1 is the structural representation of pressure reduction settlement gauge in the utility model;
Fig. 2 is the operating principle schematic diagram of pressure reduction settlement gauge in the utility model;
In figure: 1. measuring unit 2.O shape sealing ring 3. densification screw rod 4. data communication, feeder ear 5. air guide, gas outlet 6. fluid guidance port 7. wireway 8. catheter 9. tank No. 10.0 pressure reduction settlement gauges;
Specify Fig. 1 as Figure of abstract of the present utility model.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model is according in pipeline liquid injecting device, the principle that the fluid pressure of arbitrfary point and this point are directly proportional to the discrepancy in elevation of liquid level and designing, and as measuring unit can enough accurate measurement pressure differences, can be converted the change of elevation by pressure reduction variable quantity.
As shown in Figure 1, pressure reduction settlement gauge top is provided with measuring unit, connects fluid pipeline bottom measuring unit, and fluid pipeline is inverted T-shaped, and two ends, fluid pipeline left and right are respectively equipped with fluid guidance port, and measuring unit side is provided with air guide port.Measuring unit is a sealed cavity structure.Fluid pipeline top is provided with O-ring seals, and O-ring seals is connected with pressure reduction settlement gauge housing by densification screw rod.Measuring unit top is provided with data communication interface and power supply interface.
Settling amount is a relative numerical value normally, namely settling amount is not sedimentation relatively, in practice, usually a relatively motionless region (settling zone not occurring) can be found, for settling tank and No. 0 pressure reduction settlement gauge, see Fig. 2, tank and No. 0 pressure reduction settlement gauge are arranged at and relatively settling zone do not occur, settling zone setting pressure settlement gauge is respectively measured in plan, bottom of gullet connects No. 0 pressure reduction settlement gauge one end fluid guidance port by catheter, some pressure reduction settlement gauges are respectively equipped with in some sedimentations place to be measured, by catheter, pressure reduction settlement gauge fluid guidance port is interconnected successively between all the other pressure reduction settlement gauges, first pressure reduction settlement gauge connects No. 0 pressure reduction settlement gauge other end fluid guidance port by catheter, the fluid guidance port of last pressure reduction settlement gauge passes through seal for pipe joints, tank bottom is provided with liquid, tank top is provided with air chamber, air chamber side connects air pump, air chamber opposite side is provided with gas outlet, the gas outlet of air chamber connects the air guide port of No. 0 pressure reduction settlement gauge and all the other pressure reduction settlement gauges respectively by wireway.No. 0 pressure reduction settlement gauge transmits electric supply installation with all the other pressure reduction settlement gauge top data communication interfaces and power supply interface by holding wire connection data.
Before filling pilot liquid, utilize air pump to squeeze into the air pressure of about 10kPa at water pot atmospheric pressure end, and continue observation 24 hours internal gas pressure reduction situations, as air pressure decreasing value is less than 0.5kPa, the requirement of pipeline sealing sexual satisfaction is then described.Water pot pore is opened, and pours into pilot liquid, open distal valve simultaneously, the gas in impulse piping is discharged, until connecting pipe is all liquid filled, guarantees that in water pot, liquid level is lower than air guide port.
Each plan measures the pressure settlement gauge of settling zone and the pressure difference value of No. 0 pressure settlement gauge position is:
ΔP
i0＝ΔP
i-ΔP
0＝ρg(h
i-h
0)＝ρgΔh
i0
Δ P
i0---intend the pressure differential measuring settling zone tested point i and No. 0 pressure settlement gauge point
Δ h
i0---intend the discrepancy in elevation measuring settling zone tested point i and No. 0 pressure settlement gauge point
P
i＝ρgh
i+P
G
P
i---measuring point pressure
P
g---atmospheric pressure
ρ---fluid density
G---acceleration of gravity
H
i---the relative liquid surface discrepancy in elevation
ΔP
i＝P
i-P
G＝ρgh
i
Δ P
i---measuring point pressure reduction
Measure settling zone tested point i as intended and sedimentation occurs, Δ P
i0must change, by measuring Δ P
i0variable quantity, can convert Δ h
i0variable quantity, accurately can measure sedimentation value thus.
Utilize pure water as pilot liquid, the corresponding 9.8Pa of the 1mm discrepancy in elevation, the accuracy in measurement of differential pressure measuring cell is ± 1Pa, and corresponding vertical survey precision is 0.1mm.By accuracy testing comparison, pressure reduction settlement gauge and circuit design thereof can meet second-class settlement measurement requirement.
Claims (6)
1. a pressure reduction settlement gauge, it is characterized in that pressure reduction settlement gauge top is provided with measuring unit, connect fluid pipeline bottom measuring unit, fluid pipeline is inverted T-shaped, and two ends, fluid pipeline left and right are respectively equipped with fluid guidance port, and measuring unit side is provided with air guide port.
2. a kind of pressure reduction settlement gauge as claimed in claim 1, is characterized in that described measuring unit is a sealed cavity structure.
3. a kind of pressure reduction settlement gauge as claimed in claim 1, is characterized in that described fluid pipeline top is provided with O-ring seals, and O-ring seals is connected with pressure reduction settlement gauge housing by densification screw rod.
4. a kind of pressure reduction settlement gauge as claimed in claim 1, is characterized in that described measuring unit top is provided with data communication interface and power supply interface.
5. one kind adopts the pressure reduction settlement measuring device of pressure reduction settlement gauge described in claim 1, it is characterized in that tank and No. 0 pressure reduction settlement gauge are arranged at and relatively settling zone does not occur, bottom of gullet connects No. 0 pressure reduction settlement gauge one end fluid guidance port by catheter, some pressure reduction settlement gauges are respectively equipped with in some sedimentations place to be measured, by catheter, pressure reduction settlement gauge fluid guidance port is interconnected successively between all the other pressure reduction settlement gauges, first pressure reduction settlement gauge connects No. 0 pressure reduction settlement gauge other end fluid guidance port by catheter, the fluid guidance port of last pressure reduction settlement gauge passes through seal for pipe joints, described tank bottom is provided with liquid, tank top is provided with air chamber, air chamber side connects air pump, air chamber opposite side is provided with gas outlet, the gas outlet of air chamber connects the air guide port of No. 0 pressure reduction settlement gauge and all the other pressure reduction settlement gauges respectively by wireway.
6. a kind of pressure reduction settlement measuring device as claimed in claim 5, is characterized in that No. 0 pressure reduction settlement gauge and all the other pressure reduction settlement gauge top data communication interfaces and power supply interface are by holding wire connection data transmission electric supply installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468336.0U CN204753560U (en) | 2015-07-02 | 2015-07-02 | Pressure differential sedimentometer and pressure differential subside measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468336.0U CN204753560U (en) | 2015-07-02 | 2015-07-02 | Pressure differential sedimentometer and pressure differential subside measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN204753560U true CN204753560U (en) | 2015-11-11 |
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ID=54468286
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|---|---|---|---|
| CN201520468336.0U Active CN204753560U (en) | 2015-07-02 | 2015-07-02 | Pressure differential sedimentometer and pressure differential subside measuring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823466A (en) * | 2016-05-09 | 2016-08-03 | 蓬莱巨涛海洋工程重工有限公司 | Level detection method and system for ocean module building |
| CN106092046A (en) * | 2016-08-15 | 2016-11-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Single-communication closed pressure type settlement measurement system and measurement method thereof |
| CN110440748A (en) * | 2019-07-18 | 2019-11-12 | 嘉兴同禾传感技术有限公司 | The subgrade settlement monitoring device and its application method that can be safeguarded and be multiplexed |
| CN112414369A (en) * | 2020-10-22 | 2021-02-26 | 武汉大学 | Underground oil and gas pipeline settlement detection device |
-
2015
- 2015-07-02 CN CN201520468336.0U patent/CN204753560U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823466A (en) * | 2016-05-09 | 2016-08-03 | 蓬莱巨涛海洋工程重工有限公司 | Level detection method and system for ocean module building |
| CN106092046A (en) * | 2016-08-15 | 2016-11-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Single-communication closed pressure type settlement measurement system and measurement method thereof |
| CN106092046B (en) * | 2016-08-15 | 2019-01-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Single-communication closed pressure type settlement measurement system and measurement method thereof |
| CN110440748A (en) * | 2019-07-18 | 2019-11-12 | 嘉兴同禾传感技术有限公司 | The subgrade settlement monitoring device and its application method that can be safeguarded and be multiplexed |
| CN112414369A (en) * | 2020-10-22 | 2021-02-26 | 武汉大学 | Underground oil and gas pipeline settlement detection device |
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