CN205617348U - Device of monitoring is carried out ground pore water pressure - Google Patents
Device of monitoring is carried out ground pore water pressure Download PDFInfo
- Publication number
- CN205617348U CN205617348U CN201620159787.0U CN201620159787U CN205617348U CN 205617348 U CN205617348 U CN 205617348U CN 201620159787 U CN201620159787 U CN 201620159787U CN 205617348 U CN205617348 U CN 205617348U
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- pore
- floral tube
- pressure gauge
- pore pressure
- pvc floral
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- Measuring Fluid Pressure (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The embodiment of the utility model provides a device of monitoring is carried out ground pore water pressure. The device mainly includes: the PVC floral tube, the geotechnological cloth of the outside of PVC floral tube winding, the inboard of PVC floral tube is a series of fillers, the filler is including permeating water middlings, water proof bentonite ball. The filler still includes pore pressure cell, pore pressure cell passes through the private cable line with the outside intelligent digital reading appearance of signal conduction to device. The middlings, water proof bentonite ball of permeating water is in the inside basis of PVC floral tube (2) the circulation of pore pressure cell interval sets up. The embodiment of the utility model provides a possess multiple construction operation function, the accepted standardization, integrate, modularization design and processing, optimized pore water pressure sensor lay with the fashioned construction process of hand -hole, guaranteed the pore -forming success rate, promoted pore water pressure monitoring devices's specialized level, have monitoring hole and become advantages such as porosity height.
Description
Technical field
This utility model relates to monitoring pore water pressure technical field, particularly relates to one base pore water over the ground
The device that pressure is monitored.
Background technology
In Communication and Transportation Engineering and civil engineering, all kinds of grounds and foundation construction and use during, one
As need to monitor the pore water pressure change of each soil layer kind.According to China's existing related specifications requirement, it is proposed that
Using every hole only to bury the scheme of a pore pressure gauge underground, the program has the disadvantage that 1. analytical soil sample
When pore water pressure is along the Changing Pattern of the degree of depth, need to bury multiple pore pressure gauge, warp underground along the degree of depth
Often boring the hole of multiple different depths, every hole is buried a pore pressure gauge underground, is the most just caused in difference deep
The pore pressure gauge of degree is positioned at Different Plane.If soil property attribute generation large change, then the hole of monitoring
Gap water pressure Changing Pattern is not the pore water pressure change rule of different depth in same perpendicular
Rule, i.e. test data can lack comparability；If 2. boring existing mud, drilling rod need to be used pore water
Piezometer press-in mud can cause pore pressure gauge to produce excess pore water pressure, its dissipation needs one
The fixed time.If entrance is formally observed, excess pore water pressure dissipates the most completely, then cause mistake
Test result.
First scheme: use every hole bury multiple sensor underground and utilize hole wall naturally to cave in the side of sealing of hole
Formula.First directly holed by engineers and technicians to the deepest pore pressure gauge projected depth, according to respectively
Elevation is laid in the design of individual pore pressure gauge, is sequentially placed each probe, finally extracts fixed-piping out,
So that hole wall caves in naturally reaches the purpose of sealing of hole.The shortcoming of the program is: between pore pressure gauge
It is not provided with sealing coat thus causes adjacent pore pressure gauge to connect, cause adjacent pores WG
The data measured duplicate, and lose comparative.
So, design a kind of integrated packaging for ground monitoring pore water pressure and detect device, in order to
In safety, the integrated packaging pore pressure gauge that quickly and conveniently carries out soft foundation and muck foundation
Bury underground, and the detection pore water pressure force value of ground different depth and Changing Pattern thereof accurately, have
Highly important engineering practice directive significance.
Summary of the invention
The embodiment provides the device that a kind of pore water pressure of base over the ground is monitored, to realize
Base pore water pressure is effectively monitored over the ground.
To achieve these goals, this invention takes following technical scheme.
The device that a kind of pore water pressure of base over the ground is monitored, including: PVC floral tube (2), described PVC
The outer felt of floral tube (2) is around geotextiles (1), and the inner side of described PVC floral tube (2) is a series of filling
Thing, described implant includes permeable medium sand (4), water proof bentonite ball (5).
Further, described implant also includes pore pressure gauge (6), described pore pressure gauge
(6) by Special cable wire (7), signal is conducted to the intelligent digital readout instrument outside device.
Further, described permeable medium sand (4), water proof bentonite ball (5) are at described PVC floral tube
(2) inside is circularly set according to described pore pressure gauge (6) interval.
Further, described geotextiles (1) is two-layer gauze.
Further, described PVC floral tube (2) is equipped with four round holes, and along in longitudinally staggered disposition.
Further, the probe of described pore pressure gauge (6) is wrapped among permeable medium sand (4),
And between permeable medium sand (4), fill bentonite ball (5) to completely cut off between adjacent pores WG
Connection.
Further, the thickness of the permeable medium sand (4) of the probe of embedding described pore pressure gauge (6)
Being set to 20cm, the thickness of water proof bentonite ball (5) arranged between permeable medium sand (4) is set to
(L-20) cm, wherein L is the spacing distance of default pore pressure gauge (6).
Further, bentonite ball (5) is used to block the upper port of described PVC floral tube (2).
The technical scheme provided by embodiments of the invention described above is it can be seen that this utility model embodiment has
Standby multiple construction operation function, uses standardization, integrated, modularized design processing, optimizes hole
The laying of water pressure sensor and the construction technology of inspecting hole molding, it is ensured that pore-forming success rate, improve hole
The standardization of gap water pressure monitoring device, integrated level, modularity level, professional level, have
Monitoring holes becomes porosity high, holes and lays sensor low cost, and structure is reliable, easy to operate, sensor
Installation rate is fast, sensor registration, and it is high that sensor is mounted to power, and sensor is disturbed little, surveys
Accuracy of measurement advantages of higher.
Aspect and advantage that the present invention adds will part be given in the following description, and these are by from following
Description becomes obvious, or recognized by the practice of the present invention.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some bright embodiments, for those of ordinary skill in the art, are not paying creative work
Under premise, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structure of the device that a kind of pore water pressure of base over the ground that Fig. 1 provides for this utility model is monitored is shown
It is intended to.
The local of the device that a kind of pore water pressure of base over the ground that Fig. 2 provides for this utility model is monitored is put
Big schematic diagram.
A monitoring device cone point schematic diagram, B monitoring device attachment structure figure, C monitoring device connects
Sleeve pipe schematic diagram；
Wherein, 1-geotextiles (gauze)；2-PVC floral tube；3-taper bottom；The permeable medium sand of 4-；5-is swollen
Profit soil ball；6-pore pressure gauge is popped one's head in；7-wire；8-bolt；9-PVC sleeve pipe (connecting tube).
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the accompanying drawings
Going out, the most same or similar label represents same or similar element or has identical or class
Element like function.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining
This utility model, and can not be construed to restriction of the present utility model.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative used herein
" one ", " one ", " described " and " being somebody's turn to do " may also comprise plural form.Will be further understood that
, the wording that uses in description of the present utility model " includes " referring to existing described feature, whole
Number, step, operation, element and/or assembly, but it is not excluded that existence or add one or more other
Feature, integer, step, operation, element, assembly and/or their group.It should be understood that when we claim
Element is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other yuan
Part, or intermediary element can also be there is.Additionally, " connection " used herein or " coupling " are permissible
Including wireless connections or couple.Wording "and/or" used herein includes what one or more was associated
List any cell and all combinations of item.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein
(including technical term and scientific terminology) has and the those of ordinary skill in this utility model art
Be commonly understood by identical meaning.Should also be understood that those terms defined in such as general dictionary
Should be understood that there is the meaning consistent with the meaning in the context of prior art, and unless as this
In equally define, will not with idealization or the most formal implication explain.
For ease of the understanding to this utility model embodiment, below in conjunction with accompanying drawing with several specific embodiments
As a example by be further explained explanation, and each embodiment is not intended that the limit to this utility model embodiment
Fixed.
The device that the purpose of this utility model is monitored for providing a kind of pore water pressure of base over the ground, application
This device, can bury multiple pore pressure gauge underground by different depth, in order to quickly, just in each boring
Carry out pore pressure gauge burial and construction promptly, accurately measure Highway and Railway Engineering field and building work
The super soft foundation in journey field and the pore water pressure of muck foundation Changing Pattern vertically.
This utility model embodiment provides the device that a kind of pore water pressure of base over the ground is monitored, its tool
Body realizes structure as it is shown in figure 1, specifically may include that this system outermost is geotextiles (1), geotechnique
Cloth is wrapped in PVC (Polyvinyl chloride, polrvinyl chloride) floral tube (2) outside, floral tube bottom
For taper bottom (3), floral tube (2) inner side is a series of implant, and this implant is distinguished from bottom to top
For permeable medium sand (4), water proof bentonite ball (5), permeable medium sand (4), these two kinds of implants according to
Pore pressure gauge interval is circularly set, and above-mentioned implant is internal arranges a series of JTM-V3000 type vibratory string
Formula pore pressure gauge (6), signal is conducted by pore pressure gauge (6) by Special cable wire (7)
To intelligent digital readout instrument.
Geotextiles (1) is two-layer gauze, it is ensured that can block silt while permeable, in order to avoid silt blocking
Permeable hole on PVC floral tube (2).Four round holes it are equipped with so that permeable on PVC floral tube (2), and edge
In longitudinally staggered disposition, in order to the pore water in surrounding soil can enter in PVC floral tube (2) smoothly.
The probe of JTM-V3000 type type vibration wire pore pressure gauge (6) must be wrapped in permeable medium sand (4)
Among, and between permeable medium sand (4), fill bentonite ball (5), to completely cut off adjacent pores water pressure
Connection between meter.
The thickness of the permeable medium sand (4) of the probe of embedding pore pressure gauge (6) is set to 20cm, thoroughly
The thickness of the bentonite ball (5) arranged between water medium sand (4) is (L-20) cm, and wherein L is default
The spacing distance of pore pressure gauge (6).
The top of this system needs to use the upper port of bentonite ball (5) closure PVC floral tube (2), in order to avoid
The surface water such as rainwater permeate the ground affects the measurement precision of this system.
Use geological drilling rig to carry out wet boring, and use drilling rod by the press-in boring of this system until pre-
If position, then backfill with original soil, and select position, bentonite ball sealing closed pore top.
In sum, this utility model embodiment possesses multiple construction operation function, uses standardization, collection
Cheng Hua, modularized design processing, optimize the laying of pore water pressure sensor and the construction of inspecting hole molding
Technique, it is ensured that pore-forming success rate, improves the standardization of monitoring pore water pressure system, integrated water
Flat, modularity level, professional level, have monitoring holes and become porosity high, hole and lay sensor
This is low, and structure is reliable, easy to operate, and sensor installation rate is fast, sensor registration, sensor
Being mounted to power high, sensor is disturbed little, certainty of measurement advantages of higher.
The system of this utility model embodiment can solve existing monitoring pore water pressure sensor and become porosity
Low, sensor lays that speed of application is slow, sensor location is inaccurate, sensor receives that interference is relatively big, sensing
The topic that around device, soil layer and isolation soil layer are difficult to control to etc..May be directly applied to domestic and international all kinds of railway, public affairs
Road, the ground monitoring pore water pressure of building.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, in accompanying drawing
Module or flow process not necessarily implement necessary to this utility model.
One of ordinary skill in the art will appreciate that: the parts in device in embodiment can be according to enforcement
Example describes in the device being distributed in embodiment, it is also possible to carries out respective change and is disposed other than the present embodiment
In one or more devices.The parts of above-described embodiment can merge into parts, it is also possible to further
Split into multiple subassembly.
The above, only this utility model preferably detailed description of the invention, but protection of the present utility model
Scope is not limited thereto, the skill that any those familiar with the art discloses at this utility model
In the range of art, the change that can readily occur in or replacement, all should contain protection domain of the present utility model it
In.Therefore, protection domain of the present utility model should be as the criterion with scope of the claims.
Claims (8)
1. the device that base pore water pressure is monitored over the ground, it is characterized in that, including: PVC floral tube (2), the outer felt of described PVC floral tube (2) is around geotextiles (1), the inner side of described PVC floral tube (2) is a series of implant, and described implant includes permeable medium sand (4), water proof bentonite ball (5).
Device the most according to claim 1, it is characterized in that, described implant also includes pore pressure gauge (6), and signal is conducted to the intelligent digital readout instrument outside device by described pore pressure gauge (6) by Special cable wire (7).
Device the most according to claim 2, it is characterized in that, described permeable medium sand (4), water proof bentonite ball (5) are circularly set according to described pore pressure gauge (6) interval in the inside of described PVC floral tube (2).
Device the most according to claim 2, it is characterised in that described geotextiles (1) is two-layer gauze.
Device the most according to claim 1, it is characterised in that be equipped with four round holes on described PVC floral tube (2), and along in longitudinally staggered disposition.
Device the most according to claim 2, it is characterized in that, the probe of described pore pressure gauge (6) is wrapped among permeable medium sand (4), and fills bentonite ball (5) between permeable medium sand (4) to completely cut off the connection between adjacent pores WG.
7. according to the device described in claim 1 or 4, it is characterized in that, the thickness of the permeable medium sand (4) of the probe of embedding described pore pressure gauge (6) is set to 20cm, the thickness of water proof bentonite ball (5) arranged between permeable medium sand (4) is set to (L-20) cm, and wherein L is the spacing distance of default pore pressure gauge (6).
Device the most according to claim 1, it is characterised in that use bentonite ball (5) to block the upper port of described PVC floral tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620159787.0U CN205617348U (en) | 2016-03-02 | 2016-03-02 | Device of monitoring is carried out ground pore water pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620159787.0U CN205617348U (en) | 2016-03-02 | 2016-03-02 | Device of monitoring is carried out ground pore water pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205617348U true CN205617348U (en) | 2016-10-05 |
Family
ID=57033781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620159787.0U Expired - Fee Related CN205617348U (en) | 2016-03-02 | 2016-03-02 | Device of monitoring is carried out ground pore water pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205617348U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931332A (en) * | 2018-06-29 | 2018-12-04 | 中国二十冶集团有限公司 | The detection method of peat soil soft soil foundation hydraulic pressure |
| CN113756318A (en) * | 2021-09-28 | 2021-12-07 | 北京住总集团有限责任公司 | Dynamic monitoring system and method for drainage process of ultra-large deep foundation pit |
-
2016
- 2016-03-02 CN CN201620159787.0U patent/CN205617348U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931332A (en) * | 2018-06-29 | 2018-12-04 | 中国二十冶集团有限公司 | The detection method of peat soil soft soil foundation hydraulic pressure |
| CN113756318A (en) * | 2021-09-28 | 2021-12-07 | 北京住总集团有限责任公司 | Dynamic monitoring system and method for drainage process of ultra-large deep foundation pit |
| CN113756318B (en) * | 2021-09-28 | 2022-11-18 | 北京住总集团有限责任公司 | Dynamic monitoring system and method for drainage process of ultra-large deep foundation pit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20180302 |