CN109357661A - A kind of preboring formula soil layer layering measuring instrument - Google Patents
A kind of preboring formula soil layer layering measuring instrument Download PDFInfo
- Publication number
- CN109357661A CN109357661A CN201811399110.4A CN201811399110A CN109357661A CN 109357661 A CN109357661 A CN 109357661A CN 201811399110 A CN201811399110 A CN 201811399110A CN 109357661 A CN109357661 A CN 109357661A
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- CN
- China
- Prior art keywords
- sedimentation
- sedimentation pipe
- measuring instrument
- soil layer
- displacement sensor
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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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of preboring formula soil layers to be layered measuring instrument, including the sedimentation pipe rotating handle at the top of reinforcing bar, sedimentation casing, embedded blade and sedimentation pipe, displacement sensor, sedimentation pipe is connected through the four any feet of foot nut in sedimentation pipe rotating handle with displacement sensor, and displacement sensor connects acquisition Instrumen by conducting wire.The inner wall of sedimentation pipe is equipped with slide groove, is equipped with ball in slide groove.Length of each composition sedimentation pipe of casing in bottom is settled gradually to shorten from inside to outside.The beneficial effects of the present invention are: slided between each sedimentation pipe by locator slide, it is effective to reduce friction, the accuracy of guarantee test；Can be realized the settlement measurement to soil body single hole multiple spot, can effective short form test, avoid the extruding between the bar and bar of point hole measurement method；It effectively avoids previous measuring device from having to pre-buried tedious steps, ensure that the virgin state of stress of the soil body, keep test more convenient, accurate and efficient.
Description
Technical field
The invention belongs to geotechnical model test and live in-situ testing technique field, in particular to a kind of preboring formula soil layers point
Layer measuring instrument.
Background technique
In the coastal area in China, weak soil is very extensive, and weak soil has high-moisture, and high-compressibility, permeability is weak, shearing resistance
Intensity is low, also there is the mechanical property of creep properties more outstanding.Therefore, it is often carried out at reinforcing in Soft Ground
Reason, if not reinforcing, is then easy to cause the differential settlement of building, the security risks such as wall crazing.To sum up, in Practical Project
On indoor model test, deformation of ground is tested particularly important, wherein to the vertical deformation of soft soil foundation measurement just at
For the most important thing.General settlement measurement is the measurement to soil body surface sedimentation and inside soil body sedimentation, passes through different depth
Soil layer settlement measurement come to soil layer mechanics and deformation performance evaluate and test.The measurement of present solum settlement essentially by
Multi-spots way, the squeezing action thus not being avoided that between bar and bar, the comparison of multimetering value, there are large errors, survey
Amount method is also complex, and many settling test spininess cannot effectively reflect each of live soil layer to indoor model test
The mechanics and deformation performance of layer settling amount and each soil layer.
Summary of the invention
The purpose of the present invention is optimizing the component of existing settlement measurement, it is a kind of conveniently heavy for soil body layering to provide
The measuring device of drop, which may be implemented in do not destroy soil body primitive stress in the case where single hole multiple spot is carried out to the soil body
Settlement measurement, and solve the problems, such as that settling component in the past wants pre-buried and generate a series of.
To achieve the above object, the technical scheme is that a kind of preboring formula soil layer is layered measuring instrument, comprising: reinforcing bar,
It covers one on reinforcing bar group of sedimentation casing, each sedimentation casing of composition sedimentation casing and the embedded knife of reinforcing bar bottom is set
Sedimentation pipe rotating handle at the top of piece, sedimentation pipe and reinforcing bar, displacement sensor, the sedimentation pipe is through in sedimentation pipe rotating handle
The four any feet of foot nut are connected with displacement sensor, and institute's displacement sensors connect acquisition Instrumen by conducting wire.
The sedimentation casing includes 2~7 sedimentation pipes.
The inner wall of the sedimentation pipe is equipped with slide groove, is equipped with ball in the slide groove.
Length of each composition sedimentation pipe of the sedimentation casing in bottom gradually shortens from inside to outside.
The top of the reinforcing bar is equipped with rotating handle.
The beneficial effects of the present invention are: slided between each sedimentation pipe by locator slide, it is effective to reduce friction, it protects
The accuracy of confirmatory test；Can be realized the settlement measurement to soil body single hole multiple spot, can effective short form test, avoid bar and bar it
Between squeezing action；It effectively avoids previous measuring device from having to pre-buried tedious steps, ensure that the primitive stress shape of the soil body
State keeps test more convenient, accurate and efficient.
Detailed description of the invention
Fig. 1 is the schematic front view of preboring formula soil layer layering measuring instrument of the present invention；
Fig. 2 is the main view of settlement measurement component of the invention；
Fig. 3 is sedimentation pipe diagrammatic cross-section of the invention；
In figure:
1, pipe sleeve 2, four foot nuts 3, embedded blade are settled
4, reinforcing bar 5, displacement sensor 6, sedimentation pipe
7, four foot 8 of nut, drilling
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description:
As shown in Figure 1 to Figure 3, a kind of preboring formula soil layer is layered measuring instrument, reinforcing bar 4, the sedimentation casing 1 covered on reinforcing bar,
It is heavy at the top of the embedded blade 3, reinforcing bar 4 and sedimentation pipe of 4 bottom of each sedimentation pipe 6 and reinforcing bar of composition sedimentation casing 1 to be arranged in
Pipe rotating handle, displacement sensor 5 are dropped, by rotating handle, puts the blade 3 for corresponding to 4 lower end of each sedimentation pipe 6 and reinforcing bar screw-in
Set the hole wall soil layer of the drilling 8 of this device, the sedimentation pipe 1 through in sedimentation pipe rotating handle any foot of four foot nut 2 and position
Displacement sensor 5 is connected, and sedimentation pipe rotating handle inner hole is equipped with internal screw thread and extends downwardly out the boss of four foot nuts is with handle
One, convenient for connecting displacement sensor 5 on four feet of four foot nuts, institute's displacement sensors 5 are connected external by conducting wire
Acquisition Instrument.Settling casing 1 includes 2~7 sedimentation pipes 6.
It is installed between sedimentation pipe by the way that the locator slide 6-1 of sedimentation inside pipe wall is arranged in, rolling is equipped in slide groove 6-1
Pearl 6-2 is moved using the ball 6-2 in slideway, is conducive to reduce frictional force, is reduced error.The top of each sedimentation pipe
It is equipped with sedimentation pipe rotating handle, makes to carry out in the embedded blade 3 for the settling bottom of the tube screw-in soil body by rotating rotating handle
Stress measurement, stress value pass through sensor passes to acquisition Instrumen.Due to sedimentation casing 1 each sedimentation pipe 6 length not
Together, the length in bottom gradually shortens from inside to outside, can achieve measured in the same drilling 8 opened in advance it is each not
With the stress value of soil layer point.
It settles sleeve upper end and is equipped with Design of Screw Thread, the installation for carrying out four foot nuts in operation can by rotating four feet
To drive the rotation for settling the set embedded blade of tube bottom, and it is connected on nut foot with displacement sensor at one wherein, for surveying
Measure displacement data.Reinforcing bar is covered upper blade with each sedimentation pipe by nut knob after placing to rotate, effectively by knife
Piece cuts into fixed to achieve the effect that in soil layer.Each displacement sensor and each nut foot are attached, the other end then by with
Acquisition Instrument carries out connected.Blade is influenced to settle therewith by the sedimentation of soil layer, then drives the sedimentation of sedimentation pipe, while band
The pointer sedimentation of dynamic displacement sensor, can acquire the settling data of current measurement point by Acquisition Instrument.
This settlement measuring device can effectively improve the complexity of previous sedimentation experiment, not only reduce and measure on ordinary days
Numerous measuring rods of Shi Suoxu, it is thus also avoided that mutual extrusion of the bar to soil and between bar and bar acts on, ensure that the original of the soil body
Beginning stress state and cumbersome pre-buried step.This settlement gauge advantage is operability, simple and convenient, in actual production
It is more advantageous, it is very suitable to the test of outdoor Specific construction.
The above description is only a preferred embodiment of the patent of the present invention, is not intended to limit the invention patent, all in the present invention
Made any modifications, equivalent replacements and improvements within the spirit and principle of patent, should all fall in the protection of the invention patent
Within the scope of.
Claims (5)
1. a kind of preboring formula soil layer is layered measuring instrument, comprising: reinforcing bar (4), the one group of sedimentation casing (1) covered on reinforcing bar, setting
It is corresponding for rotating embedded knife in the embedded blade (3) of each sedimentation pipe (6) bottom of composition sedimentation casing (1) and top
The sedimentation pipe rotating handle of piece (3), displacement sensor (5), the sedimentation pipe (6) is through four foot nuts in sedimentation pipe rotating handle
(2) any foot is connected with displacement sensor (5), and institute's displacement sensors (5) connect acquisition Instrumen by conducting wire.
2. a kind of preboring formula soil layer according to claim 1 is layered measuring instrument, it is characterized in that: the sedimentation casing (1) is wrapped
Include 2~7 sedimentation pipes (6).
3. a kind of preboring formula soil layer according to claim 1 or 2 is layered measuring instrument, it is characterized in that: the sedimentation pipe (6)
Inner wall is equipped with slide groove (6-1), is equipped with ball (6-2) in the slide groove (6-1).
4. a kind of preboring formula soil layer according to claim 2 is layered measuring instrument, it is characterized in that: the sedimentation casing is each
Length of the sedimentation pipe in bottom is formed gradually to shorten from inside to outside.
5. a kind of preboring formula soil layer according to claim 1 is layered measuring instrument, it is characterized in that: being set at the top of the reinforcing bar (4)
There is rotating handle, bottom is equipped with embedded blade (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811399110.4A CN109357661A (en) | 2018-11-22 | 2018-11-22 | A kind of preboring formula soil layer layering measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811399110.4A CN109357661A (en) | 2018-11-22 | 2018-11-22 | A kind of preboring formula soil layer layering measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109357661A true CN109357661A (en) | 2019-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811399110.4A Pending CN109357661A (en) | 2018-11-22 | 2018-11-22 | A kind of preboring formula soil layer layering measuring instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827845A (en) * | 2019-03-22 | 2019-05-31 | 天津城建大学 | Concrete drain tile liner HDPE plate anti-drawing strength test device |
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2018
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| CN104360042A (en) * | 2014-12-08 | 2015-02-18 | 东北林业大学 | Device and method for testing internal frost-heave capacity of compacted soil |
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| CN109827845A (en) * | 2019-03-22 | 2019-05-31 | 天津城建大学 | Concrete drain tile liner HDPE plate anti-drawing strength test device |
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