CN109029346A - Osmotic pressure and integrated monitoring device and measurement method are settled in a kind of soft soil foundation - Google Patents
Osmotic pressure and integrated monitoring device and measurement method are settled in a kind of soft soil foundation Download PDFInfo
- Publication number
- CN109029346A CN109029346A CN201810926448.4A CN201810926448A CN109029346A CN 109029346 A CN109029346 A CN 109029346A CN 201810926448 A CN201810926448 A CN 201810926448A CN 109029346 A CN109029346 A CN 109029346A
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- test tube
- pipe
- sedimentation
- osmotic pressure
- soft soil
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to the safety monitoring technologies of osmotic pressure and sedimentation, and in particular to a kind of integrated observation device and measurement method that osmotic pressure and sedimentation are monitored in soft soil foundation.Osmotic pressure and the integrated monitoring device of sedimentation in a kind of soft soil foundation of the present invention; including test tube; the test tube is divided into test tube water-permeable pipe and test tube aqueduct; sedimentation bottom plate is equipped between the test tube water-permeable pipe and test tube aqueduct; the test tube water-permeable pipe sealed bottom; protection pipe is equipped on the outside of the test tube; the protection pipe includes protection pipe adjustable pipe and protection pipe fixing pipe; the protection pipe adjustable pipe is mounted on sedimentation bottom plate; osmometer is equipped in the test tube water-permeable pipe, described osmometer one end is connected with cable.A kind of monitoring osmotic pressure in soft soil foundation of the present invention and the integrated observation device and measurement method structure of sedimentation are simple, easy to operate.
Description
Technical field
The present invention relates to the safety monitoring technologies of osmotic pressure and sedimentation, and in particular to one kind in soft soil foundation monitor osmotic pressure and
The integrated observation device and measurement method of sedimentation.
Background technique
In soft soil foundation, due to engineering geological condition, boundary condition, and the reasons such as digging condition are filled out, in soft soil foundation
It can cause soil body sedimentation, lateral deformation and the variation of level of ground water in treatment process and later period operation, these variations are to engineering sheet
The more or less influence of the generations such as body and surrounding building, pipeline and road.Therefore, to ensure that engineering is gone on smoothly, simultaneously
Guarantee construction quality, safety monitoring must be carried out during basement process.Osmotic pressure and the monitoring method of sedimentation be often at this stage
Be it is independent, often created the problem that in soft soil foundation 1) ground lateral deformation cause settle the bending deformation of plate side lever,
Settlement measurement is inaccurate；2) osmometer causes water level, osmotic pressure measurement inaccurate with settlement of foundation；3) osmometer damages, and can not replace；4)
The problems such as settlement of foundation is excessive, and osmometer cable is broken.Therefore, for the above problem, osmotic pressure is collected in soft soil foundation soil and is sunk
The research for dropping integrated observation device and measurement method, is of great immediate significance.
Summary of the invention
For the monitoring technology status settled in current soft soil foundation with osmotic pressure, the purpose of the present invention is intended to provide a kind of warp
Ji, reliable measuring device and observation method, the apparatus structure principle is simple, easy to operate, can be very good to solve with
Upper problem；Concrete scheme is as follows:
Osmotic pressure and settle integrated monitoring device, including test tube in a kind of soft soil foundation, the test tube be divided into test tube water-permeable pipe and
Test tube aqueduct is equipped between the test tube water-permeable pipe and test tube aqueduct and settles bottom plate, the test tube water-permeable pipe sealed bottom,
Protection pipe is equipped on the outside of the test tube, the protection pipe includes protection pipe adjustable pipe and protection pipe fixing pipe, and the protection pipe is living
Dynamic pipe is mounted on sedimentation bottom plate, osmometer is equipped in the test tube water-permeable pipe, described osmometer one end is connected with cable.
The test tube water-permeable pipe is equipped with several apertures, and the area of the aperture accounts for the 10% ~ 20% of test tube water-permeable pipe surface area.
It can guarantee that water flows out, but not too fast influence equipment.
The permeable pipe diameter of test tube is greater than test tube water guide pipe diameter.It the characteristics of using test tube lower thick upper thin, can be significantly
Weaken hysteresis quality problem caused by common pressure-measuring pipe in weak soil.
Two layers of nonweaven geotextile is surrounded by outside the test tube water-permeable pipe, the osmometer is surrounded by two layers of geotextiles.It can
It effectively prevent soil particle to enter.
The test tube aqueduct is multistage pipeline, uses outer hoop connector between the multistage pipeline.(addition) is needing
It can be used when longer test tube aqueduct, and by outer hoop connector, internal connection can be made as smooth as possible.
The protection pipe fixing pipe, protection pipe adjustable pipe and test tube aqueduct can mutual free extension, protection pipe activity
Pipe distance sedimentation plate reserves certain distance.Guarantee that test tube itself does not limit soil deformation, it is flexible that soil deformation does not influence test tube.
It is a kind of using osmotic pressure in soft soil foundation and to settle the measurement method of integrated monitoring device, include the following steps
A, monitoring device is embedded in design position, is filled in test tube aqueduct and is flushed with nozzle, is passed through using osmometer
It measures hydraulic pressure and converts test tube aqueduct section nozzle to the vertical range of sedimentation bottom plate, measurement for the first time is used as initial value H0, surveys later
Amount is used as measured value H1；
B, test tube aqueduct section mouth of pipe elevation is measured with level, measurement for the first time is used as initial value h0, and measurement is used as measured value later
H1 can converse the elevation of sedimentation bottom plate, and the difference with initial value is settlement of foundation value.
Settling amount s=(h0-H0)-(h1-H1)；
C, before the vertical range of water filling measurement nozzle to sedimentation bottom plate, osmometer head hp is measured, is converted by the measurement of the level
The hydraulic pressure of measuring point；
Hydraulic pressure Hp=hp+(h1-H1).
Beneficial effects of the present invention:
1, osmotic pressure and the integrated monitoring device of sedimentation and measurement method in a kind of soft soil foundation of the present invention, structure is relatively simple, makes
It makes at low cost；And the present apparatus does not expend material substantially when embedded, it is easy to operate.
2, osmotic pressure and the integrated monitoring device of sedimentation and measurement method in a kind of soft soil foundation of the present invention, can use head
It measures test tube nozzle and settles the vertical range of bottom plate, efficiently solve test tube bending bring sedimentation error.
3, osmotic pressure and the integrated monitoring device of sedimentation and measurement method in a kind of soft soil foundation of the present invention, can effectively solve
Settlement of foundation bring osmometer, which buries elevation variation, leads to that measured value is inaccurate, soil deformation causes cable to be broken, can also
To replace the osmometer of damage at any time.
4, osmotic pressure and the integrated monitoring device of sedimentation and measurement method in a kind of soft soil foundation of the present invention, are surveyed using the present apparatus
The characteristics of pipe lower thick upper thin, can weaken hysteresis quality problem caused by common pressure-measuring pipe in weak soil significantly.
Detailed description of the invention:
Fig. 1 is a kind of structural schematic diagram for the integrated observation device that osmotic pressure and sedimentation are monitored in soft soil foundation of the present invention.
Wherein label: 1- test tube aqueduct section；2- test tube water-permeable pipe；3- settles bottom plate；4- protection pipe adjustable pipe；5- protection
Pipe fixing pipe；6- osmometer；7- cable.
Specific embodiment
Embodiment 1
It is further detailed below with reference to Fig. 1, osmotic pressure and settles integrated monitoring device in a kind of soft soil foundation, including survey
Pipe, test tube are divided into test tube water-permeable pipe 2 and test tube aqueduct 1, and sedimentation bottom plate is equipped between test tube water-permeable pipe 2 and test tube aqueduct 1
3,2 sealed bottom of test tube water-permeable pipe, test tube outside is equipped with protection pipe, and protection pipe includes that protection pipe adjustable pipe 4 and protection pipe are fixed
Pipe 5, protection pipe adjustable pipe 4 are mounted on sedimentation bottom plate 3, are installed and are equipped with osmometer 6 in test tube water-permeable pipe 2, and 6 one end of osmometer connects
It is connected to cable 7.Test tube water-permeable pipe 2 is equipped with several apertures, and the area of aperture accounts for the 10% ~ 20% of test tube water-permeable pipe surface area；It can
Guarantee that water flows out, but not too fast influence equipment.2 diameter of test tube water-permeable pipe is greater than 1 diameter of test tube aqueduct；Using thick under test tube
Upper thin feature, can weaken hysteresis quality problem caused by common pressure-measuring pipe in weak soil significantly.Two are surrounded by outside test tube water-permeable pipe 2
Layer nonweaven geotextile, osmometer 6 are surrounded by two layers of geotextiles.Test tube aqueduct 1 is multistage pipeline, is used between multistage pipeline outer
Bind round connector；It can be used when needing longer test tube aqueduct, and by outer hoop connector, internal connection light as far as possible can be made
It is sliding.Protection pipe fixing pipe, protection pipe adjustable pipe and test tube aqueduct can mutual free extension, the distance sedimentation of protection pipe adjustable pipe
Plate reserves certain distance, guarantees that test tube itself does not limit soil deformation, it is flexible that soil deformation does not influence test tube.
Embodiment 2
It is a kind of using osmotic pressure in soft soil foundation and to settle the measurement method of integrated monitoring device, include the following steps
A, monitoring device is embedded in design position, is filled in test tube aqueduct and is flushed with nozzle, is passed through using osmometer
It measures hydraulic pressure and converts test tube aqueduct section nozzle to the vertical range of sedimentation bottom plate, measurement for the first time is used as initial value H0, surveys later
Amount is used as measured value H1；
B, test tube aqueduct section mouth of pipe elevation is measured with level, measurement for the first time is used as initial value h0, and measurement is used as measured value later
H1 can converse the elevation of sedimentation bottom plate, and the difference with initial value is settlement of foundation value.
Settling amount s=(h0-H0)-(h1-H1)；
C, before the vertical range of water filling measurement nozzle to sedimentation bottom plate, osmometer head hp is measured, is converted by the measurement of the level
The hydraulic pressure of measuring point；
Hydraulic pressure Hp=hp+(h1-H1).
Claims (6)
1. osmotic pressure and the integrated monitoring device of sedimentation in a kind of soft soil foundation, it is characterised in that: including test tube, the test tube is divided into
Test tube water-permeable pipe and test tube aqueduct, are equipped with sedimentation bottom plate between the test tube water-permeable pipe and test tube aqueduct, the test tube is saturating
Water pipe sealed bottom, is equipped with protection pipe on the outside of the test tube, and the protection pipe includes protection pipe adjustable pipe and protection pipe fixing pipe,
The protection pipe adjustable pipe is mounted on sedimentation bottom plate, and osmometer is equipped in the test tube water-permeable pipe, and described osmometer one end connects
It is connected to cable.
2. osmotic pressure and the integrated monitoring device of sedimentation in a kind of soft soil foundation as described in claim 1, it is characterised in that: described
Test tube water-permeable pipe is equipped with several apertures, and the area of the aperture accounts for the 10% ~ 20% of test tube water-permeable pipe surface area.
3. osmotic pressure and the integrated monitoring device of sedimentation in a kind of soft soil foundation as described in claim 1, it is characterised in that: described
The permeable pipe diameter of test tube is greater than test tube water guide pipe diameter.
4. osmotic pressure and the integrated monitoring device of sedimentation in a kind of soft soil foundation as described in claim 1, it is characterised in that: described
Two layers of nonweaven geotextile is surrounded by outside test tube water-permeable pipe, the osmometer is surrounded by two layers of geotextiles.
5. osmotic pressure and the integrated monitoring device of sedimentation in a kind of soft soil foundation as described in claim 1, it is characterised in that: described
Test tube aqueduct is multistage pipeline, uses outer hoop connector between the multistage pipeline.
Using osmotic pressure in soft soil foundation described in claim 1 and the measurement method of integrated monitoring device is settled 6. a kind of,
It is characterized in that including the following steps:
A, monitoring device is embedded in design position, is filled in test tube aqueduct and is flushed with nozzle, is passed through using osmometer
It measures hydraulic pressure and converts test tube aqueduct section nozzle to the vertical range of sedimentation bottom plate, measurement for the first time is used as initial value H0, surveys later
Amount is used as measured value H1；
B, test tube aqueduct section mouth of pipe elevation is measured with level, measurement for the first time is used as initial value h0, and measurement is used as measured value later
H1 can converse the elevation of sedimentation bottom plate, and the difference with initial value is settlement of foundation value.
Settling amount s=(h0-H0)-(h1-H1)；
C, before the vertical range of water filling measurement nozzle to sedimentation bottom plate, osmometer head hp is measured, is converted by the measurement of the level
The hydraulic pressure of measuring point；
Hydraulic pressure Hp=hp+(h1-H1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810926448.4A CN109029346B (en) | 2018-08-15 | 2018-08-15 | Integrated monitoring device and measuring method for osmotic pressure and settlement in soft soil foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810926448.4A CN109029346B (en) | 2018-08-15 | 2018-08-15 | Integrated monitoring device and measuring method for osmotic pressure and settlement in soft soil foundation |
Publications (2)
| Publication Number | Publication Date |
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| CN109029346A true CN109029346A (en) | 2018-12-18 |
| CN109029346B CN109029346B (en) | 2020-12-11 |
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| CN201810926448.4A Active CN109029346B (en) | 2018-08-15 | 2018-08-15 | Integrated monitoring device and measuring method for osmotic pressure and settlement in soft soil foundation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880637A (en) * | 2021-02-02 | 2021-06-01 | 北京市水科学技术研究院 | Dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring |
| CN114622533A (en) * | 2022-02-21 | 2022-06-14 | 山东电力工程咨询院有限公司 | Recyclable layered sedimentation and pore water pressure monitoring device and method |
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| US6983655B2 (en) * | 2004-04-14 | 2006-01-10 | Chia-Hung Liang | Vehicle cesspool lever sensor |
| CN1862237A (en) * | 2006-06-09 | 2006-11-15 | 河海大学 | Device and method for testing water level in vacuum prepressing foundation reinforced area |
| CN101430199A (en) * | 2007-11-05 | 2009-05-13 | 黄广军 | Method and apparatus for monitoring soft soil base sedimentation |
| CN105737938A (en) * | 2016-02-24 | 2016-07-06 | 石家庄铁道大学 | Underground water level and deep-seated displacement same-hole monitoring device |
| CN106643649A (en) * | 2016-12-19 | 2017-05-10 | 杭州久智自动化技术有限公司 | Method and device for measuring deep soil settlement and pore water pressure |
-
2018
- 2018-08-15 CN CN201810926448.4A patent/CN109029346B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6983655B2 (en) * | 2004-04-14 | 2006-01-10 | Chia-Hung Liang | Vehicle cesspool lever sensor |
| CN1862237A (en) * | 2006-06-09 | 2006-11-15 | 河海大学 | Device and method for testing water level in vacuum prepressing foundation reinforced area |
| CN101430199A (en) * | 2007-11-05 | 2009-05-13 | 黄广军 | Method and apparatus for monitoring soft soil base sedimentation |
| CN105737938A (en) * | 2016-02-24 | 2016-07-06 | 石家庄铁道大学 | Underground water level and deep-seated displacement same-hole monitoring device |
| CN106643649A (en) * | 2016-12-19 | 2017-05-10 | 杭州久智自动化技术有限公司 | Method and device for measuring deep soil settlement and pore water pressure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880637A (en) * | 2021-02-02 | 2021-06-01 | 北京市水科学技术研究院 | Dual-purpose measuring point for underground hidden culvert engineering settlement deformation and underground water level monitoring |
| CN114622533A (en) * | 2022-02-21 | 2022-06-14 | 山东电力工程咨询院有限公司 | Recyclable layered sedimentation and pore water pressure monitoring device and method |
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| Publication number | Publication date |
|---|---|
| CN109029346B (en) | 2020-12-11 |
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