CN103953025B - Measure equipment and the method to set up thereof of Deep Thick Soft Ground or covering layer delaminating deposition - Google Patents
Measure equipment and the method to set up thereof of Deep Thick Soft Ground or covering layer delaminating deposition Download PDFInfo
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- CN103953025B CN103953025B CN201410201969.5A CN201410201969A CN103953025B CN 103953025 B CN103953025 B CN 103953025B CN 201410201969 A CN201410201969 A CN 201410201969A CN 103953025 B CN103953025 B CN 103953025B
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Abstract
Measure equipment and the method to set up thereof of Deep Thick Soft Ground or covering layer delaminating deposition, be embedded with settlement observation pipe in the borehole, guide rod is provided with in this settlement observation pipe, it is characterized in that, described guide rod is formed by connecting by some common guide rods and stainless steel guide rod, wherein, stainless steel guide rod is adopted in the place will measuring delaminating deposition; Be provided with anchorage head bottom described guide rod, this anchorage head and guide rod are tightly connected, simultaneously one section and settlement observation pipe compact siro spinning technology of this anchorage head; Described guide rod top is provided with guide rod seal cover, and sealing covers and is provided with outlet device; Described stainless steel guide rod inside is provided with tongue tube-resistive sensing elements; The data wire of described tongue tube-resistive sensing elements accumulates a single data cable before the outlet device at guide rod top, and is drawn by described outlet device and receive readout instrument with external electric signal and be connected; Outside settlement observation pipe, need the place measuring delaminating deposition to be set with magnet ring.The present invention installs, it is simple to measure, and can realize automatic measurement.
Description
Technical field
The invention belongs to the fields such as geotechnical engineering soft foundation engineering survey monitoring, be specifically related to a kind of measureing equipment measuring Deep Thick Soft Ground or covering layer delaminating deposition.The invention still further relates to the method to set up of this measurement Deep Thick Soft Ground or covering layer delaminating deposition equipment.
Background technology
Along with social economy is fast-developing and reform and opening-up deepens continuously, national basis arranges development and makes rapid progress, the buildings such as speedway, harbour, harbour are on the increase, and the not treated natural excellent ground that can directly utilize is fewer and feweri, many buildings are made to have to be built in the Deep Thick Soft Ground of less stable.Deep soft soil foundation is because its moisture content is high, bad hydraulic permeability, compressibilty are large, intensity is low, larger sedimentation and settlement difference can be produced under building load effect, bearing capacity of foundation soil and stability cannot meet requirement of engineering, need to measure the inner different parts sedimentation of foundation when consolidation process, and analysis is carried out to take counter-measure to survey data.
The dam built at home on the cover layer increases gradually in recent years, and when building dam, covering layer will measure its sedimentation after treatment, and carries out analyzing and processing to guarantee the distortion of dam lower caldding layer, stable and Seepage Safety to survey data.
The measuring method of traditional deep soft soil foundation delaminating deposition is Embedded installation sedimentation pipe, at the common magnet ring that the place will measuring delaminating deposition is closed at sedimentation pipe overcoat, delaminating deposition readout instrument is adopted to put into sedimentation pipe to monitor the size of soil body delaminating deposition.What current employing delaminating deposition readout instrument measurement soil body delaminating deposition generally adopted is all made up of delaminating deposition readout instrument, sedimentation pipe, magnet ring (also referred to as magnetic rings) and locating ring, the external diameter of locating ring is larger than the internal diameter of magnet ring, and the internal diameter of magnet ring is larger than the external diameter of sedimentation pipe, to ensure that magnet ring can move freely along sedimentation pipe.The cable manually slowly up drawing delaminating deposition readout instrument bottom sedimentation pipe is needed when delaminating deposition is measured, move to and the local delaminating deposition readout instrument of magnet ring is installed sends tweeting sound, can after check that on delaminating deposition readout instrument cable, ruler scale is to calculate soil body delaminating deposition size.This delaminating deposition measuring method is measured and must manually be pulled up and down in sedimentation pipe by a delaminating deposition readout instrument always, not only wastes time and energy, and artificial error in reading is also large, and can not realize automatic measurement.
Past generally adopts hydraulic pressure settlement gauge to monitor to dam foundation covering layer settlement monitoring, but it is more difficult that this instrument adopts boring to install, adopt the sedimentation of hydraulic pressure settlement gauge monitoring dam foundation covering layer only for monitoring tectal total settlement, and hydraulic pressure settlement gauge is due to by causing the pipe-line system transmit fluid pressure behind dam, often undesirablely affects certainty of measurement because pipeline problem causes fluid pressure to transmit thus affecting the reliability of monitoring result.Along with covering layer being built dam technical development, in the urgent need to monitoring with dam and underlying security thereof on ensuring coverage layer to dam foundation covering layer total settlement and delaminating deposition, dam engineering construction and scientific research personnel attempt adopting and install sedimentation pipe from the boring of dam foundation covering layer and monitor dam foundation covering layer delaminating deposition with the dam filing delaminating deposition measuring method cross beam type electrical measurement settlement gauge that spreading sedimentation pipe causes dam surface by dam body piecemeal, the former is except existence is with except above-mentioned " measuring method of traditional deep soft soil foundation delaminating deposition " the same problem, it is not only large to dam filing construction interference that its sedimentation pipe causes dam body surface with dam embankment spreading, and protection difficulty, be easy to cause sedimentation pipe to destroy, thus the measuring method of the delaminating deposition making it adopt falls flat, and the multiple delaminating deposition of cross beam type electrical measurement settlement gauge monitoring covering layer needs to overlap instrument more, instrument cost is high, and its installation protection difficulty is high, easily causes the cross beam type electrical measurement settlement gauge cisco unity malfunction installed.Current dam deep alluvion foundation deep soil settlement survey achievement is in space state substantially, also just cannot implement the operating characteristic that dam foundation covering layer total settlement and delaminating deposition analysis assess dam and deep covering layer dam foundation safety and the research deep covering layer dam foundation according to field data, may be used for the plant and instrument of dam deep covering layer ground deep soil settlement survey in the urgent need to exploitation.
Summary of the invention
The technical problem that will solve required for the present invention overcomes existing technological deficiency; A kind of equipment and the method to set up thereof of measuring Deep Thick Soft Ground or covering layer delaminating deposition are provided.The key problem in technology solved is needed to be: improve and fill up existing delaminating deposition readout instrument measuring technique defect, equipment and the complete set technology of a kind of novel measurement Deep Thick Soft Ground or covering layer delaminating deposition are provided, sedimentation pipe does not need Embedded installation to outside the soil body that will measure, do not need with artificial pulling layer sedimentation readout instrument cable, the data cable directly adopting the measurement of sensor signal reception readout instrument to guide to outside the soil body just can obtain Deep Thick Soft Ground or covering layer delaminating deposition.
The technical scheme completing foregoing invention task is,
A kind of equipment measuring Deep Thick Soft Ground or covering layer delaminating deposition, be embedded with settlement observation pipe in the borehole, guide rod is provided with in this settlement observation pipe, it is characterized in that, described guide rod is formed by connecting by some common guide rods and stainless steel guide rod, wherein, stainless steel guide rod is adopted in the place will measuring delaminating deposition; Be provided with anchorage head bottom described guide rod, this anchorage head and guide rod are tightly connected, simultaneously one section and settlement observation pipe compact siro spinning technology of this anchorage head; Described guide rod top is provided with guide rod seal cover, and sealing covers and is provided with outlet device; Described stainless steel guide rod inside is provided with tongue tube-resistive sensing elements; The data wire of described tongue tube-resistive sensing elements accumulates a single data cable before the outlet device at guide rod top, and is drawn by described outlet device and receive readout instrument with external electric signal and be connected; Outside settlement observation pipe, need the place (being generally at settlement observation pipe outer tip end 1/3 place measuring delaminating deposition) measuring delaminating deposition to be set with magnet ring.
The prioritization scheme of above equipment has:
1, this guide rod overlaps a centering rubber ring (or be called: guide rod centering rubber ring) every 1m, makes guide rod be positioned in the middle part of settlement observation pipe all the time;
2, described stainless steel guide rod 2m/ root, can measure large-scale sedimentation, the common guide rod in other place connects, common guide rod 1m/ root;
3, described stainless steel guide rod is connected with common guide rod guide rod joint for sealing connecting; Have sealing ring between guide rod joint for sealing connecting and guide rod, anti-sealing and silt enter guide rod internal cavities;
4, there is at the two ends of tongue tube-resistive sensing elements fixator fixing seal that tongue tube-resistive sensing elements is installed, tongue tube-resistive sensing elements can not be moved;
5, the outer tube mouth of pipe of described settlement observation pipe adopts the protection of sedimentation pipe over cap;
6, on anchorage head, be provided with threaded hole of steel, this threaded hole of steel be installed with a steel wire, more than hole depth about 3 meters of the length of steel wire, be fixed on outside steel wire on a firm thing.
More specifically and more optimally say, device structure of the present invention is:
Settlement observation pipe adopts conventional sedimentation pipe, and its internal diameter is 70mm, and the outer tube mouth of pipe adopts the protection of sedimentation pipe over cap; The measuring stick of common guide rod and stainless steel guide rod is installed in the middle of sedimentation pipe, guide rod overlaps a guide rod centering rubber ring every 1m makes guide rod be positioned in the middle part of settlement observation pipe all the time, the anchorage head that guide rod bottommost is tightly connected enters in uncompressed soil layer or basement rock, and guide rod top has guide rod seal cover and outlet device; Tongue tube-resistive sensing elements is provided with in stainless steel guide rod internal cavities, there is fixator fixing seal that tongue tube-resistive sensing elements is installed at the two ends of tongue tube-resistive sensing elements, tongue tube-resistive sensing elements can not be moved, each tongue tube-resistive sensing elements top is provided with data wire, before the outlet device of guide rod top, finally accumulates a single data cable draw from outlet device; Stainless steel guide rod is connected with common guide rod guide rod joint for sealing connecting, has sealing ring between guide rod joint for sealing connecting and guide rod, and anti-sealing and silt enter guide rod internal cavities.
Described guide rod top has guide rod seal cover and outlet device, and the data wire of described tongue tube-resistive sensing elements is accumulated a single data cable and drawn by outlet device and receive readout instrument with external electric signal and be connected before the outlet device at guide rod top.
Settlement observation pipe can Embedded installation inside Deep Thick Soft Ground or the covering layer soil body, need not expose outside the soil body, and automatic measurement can be realized.
Measuring the concrete structure being provided with tongue tube-resistive sensing elements in delaminating deposition stainless steel guide rod internal cavities is:
1) tongue tube-resistive sensing elements is made up of on insulating slab tongue tube and resistant series, and two parallel resistor stripes are parallel is fixed on insulating slab both sides, and parallel resistance is connected in series by tongue tube 5mm mono-section of order piecemeal;
2) external diameter of stainless steel guide rod is 32mm, cavity inside diameter is not less than the stainless steel tube of the smooth outer surface of 25mm, the tongue tube that delaminating deposition is measured and resistance series connection structure are sealed in its internal cavities, upper and lower two ends adopt tongue tube-resistive sensing elements fixator fixing seal, and tongue tube-resistive sensing elements can not be moved in guide rod; Guide rod length 2m/ root, tongue tube-resistive sensing elements length 1m/ root, tongue tube-resistive sensing elements upper end is provided with data wire;
3) magnet ring adopts the soil body outside claw fixed structure and settlement observation pipe to be connected the entirety for synchronous shift, during soil body compressive strain, magnet ring is subjected to displacement change along sedimentation pipe, in the stainless steel guide rod that magnet ring is displaced to position, tongue tube reed connects by after the magnetic attracting of magnet ring, circuit pathways, receives by sensor signal the resistance value that readout instrument can record now path; Because in the tongue tube of tongue tube-resistance-type in stainless steel guide rod and resistance series connection structure, tongue tube is uniform with 5mm spacing, its settlement measurement precision is 5mm;
4) sedimentation signal accepts readout instrument is special readout instrument, output voltage 0 ~ 5V.
In other words, the solution of the present invention is: the equipment body measuring Deep Thick Soft Ground or covering layer delaminating deposition is be embedded in the tongue tube-resistive sensing elements in the stainless steel guide rod of certain depth location in peephole and the magnet ring outside settlement observation pipe, magnet ring and the soil body are combined closely, drive magnet ring to be subjected to displacement change when outside soil body generation sedimentation, the tongue tube of the tongue tube-resistive sensing elements in the magnetic attracting stainless steel guide rod of magnet ring, by the change in displacement of measured resistance value variation sensing magnet ring; The survey data line of delaminating deposition accumulates a single data cable and draws the guide rod mouth of pipe by outlet device before the outlet device of guide rod top, outside by being placed in the peephole soil body after settlement observation protection of pipe lid lateral aperture is drawn; Receive the direct reading of readout instrument by sensor signal during measurement and obtain magnet ring elevation, thus record the change in displacement of magnet ring position.The apparatus of this measurement Deep Thick Soft Ground or covering layer delaminating deposition mainly comprises settlement observation pipe, magnet ring, common guide rod, stainless steel guide rod, guide rod centering rubber ring, the tongue tube-resistive sensing elements being sealed in stainless steel guide rod inside, sensor signal reception readout instrument, guide rod end sealing lid and outlet device.
Common and the stainless steel guide rod connecting anchorage head is buried underground by boring in advance, guide rod overlaps a guide rod centering rubber ring every 1m makes guide rod be positioned in the middle part of settlement observation pipe all the time, tongue tube-resistive sensing elements is sealed and installed with in stainless steel guide rod, be placed in the position will measuring delaminating deposition, two ends tongue tube-resistive sensing elements fixator fixing seal, data wire accumulates a single data cable and draws from outlet device before the outlet device at guide rod top; It is outside that magnet ring is placed on settlement observation pipe, along with soil movement slides along sedimentation pipe.Novel measurement technique of the present invention only needs Embedded installation to arrive Deep Thick Soft Ground or covering layer top when Embedded installation, and do not need settlement observation pipe always Embedded installation to outside backfill, automatically record the object of Deep Thick Soft Ground or covering layer delaminating deposition to realize receiving readout instrument by sensor signal.
The technical scheme completing the application's the 2nd invention task is: the equipment of above-mentioned measurement Deep Thick Soft Ground or covering layer delaminating deposition and method to set up thereof, and it is characterized in that, step is as follows:
1) the position boring carrying out Deep Thick Soft Ground or covering layer delaminating deposition deformation measurement is being needed; The degree of depth of Deep Thick Soft Ground suggestion boring reaches weak soil bottom not by lower 3 meters of the uncompressed soil layer that upper load affects, darker than basement rock 3 meters of the degree of depth of dam foundation covering layer suggestion boring, make anchorage head anchor to uncompressed soil layer and the dam foundation covering layer bottom basement rock inside of soft foundation very well, and boring will be cleaned up before installing;
2) in guide rod outside, settlement observation pipe is installed, guide rod overlaps a guide rod centering rubber ring every 1m makes guide rod be positioned in the middle part of settlement observation pipe all the time, settlement observation pipe and anchorage head have one section of compact siro spinning technology, in the place will measuring delaminating deposition, stainless steel guide rod is installed, and installing magnet ring from settlement observation pipe outer tip end 1/3 place measuring delaminating deposition, mounted guide rod and sedimentation pipe are put into the hole of having bored;
3) when guide rod mouth of pipe distance aperture is about about 50cm, outside hole, adopt temporary fixture to fix guide rod, guide rod freely can not be moved up and down in hole;
4) guide rod joint for sealing connecting is installed;
5) again next joint guide rod installation is fixed on joint for sealing connecting joint, tightens;
6) taut wire, unclamps fixture, installs next joint settlement observation pipe, settlement observation pipe 50cm shorter in mounted guide rod;
7) unclamp steel wire, slowly guide rod and settlement observation pipe are put into hole;
8) step 2 is repeated)-step 7), until guide rod and settlement observation pipe reach predetermined burial place;
9) guide rod Embedded installation complete after top adopt guide rod seal cap sealing, survey data cable is drawn from outlet device;
10) install settlement observation protection of pipe lid, backfill closely knit between settlement observation pipe and hole wall, magnet ring and the soil body are combined closely, and magnet ring embeds in the soil body firmly.
The prioritization scheme of above method is, in step 2) before increase in steps 2)-1: bottom guide rod, anchorage head is installed, anchorage head and common guide rod adopt to be tightly connected, anchorage head threaded hole of steel is worn a steel wire, more than hole depth about 3 meters of the length of steel wire, is fixed on outside steel wire on a firm thing.
Present invention improves over conventional batch settlement measurement sedimentation pipe must Embedded installation to measuring the technological deficiency that the soil body is outer and can only manually draw delaminating deposition readout instrument cable to measure, can by the tongue tube of the tongue tube-resistive sensing elements in the magnetic attracting stainless steel guide rod of magnet ring, Deep Thick Soft Ground or tectal delaminating deposition is measured by the change in displacement of measured resistance value reaction magnetic ring, reach without the need to the metering system outside the settlement observation pipe extraction soil body, and automatic measurement can be realized.
The convenient installation of equipment of measurement Deep Thick Soft Ground proposed by the invention or covering layer delaminating deposition, measurement simply, and can realize automatic measurement.
Accompanying drawing explanation
Fig. 1 is the equipment constructional drawing that the present invention measures Deep Thick Soft Ground or covering layer delaminating deposition.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing and concrete case study on implementation, the inventive method is described in further detail.Concrete case study on implementation described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1, measures equipment and the method to set up thereof of Deep Thick Soft Ground or covering layer delaminating deposition.
With reference to Fig. 1: needing the position boring carrying out Deep Thick Soft Ground or covering layer delaminating deposition deformation measurement; Advise in soft foundation that the degree of depth of holing reaches weak soil bottom not by lower 3 meters of the uncompressed soil layer that upper load affects, darker than basement rock 3 meters of drilling depth is advised in dam foundation covering layer, make anchorage head 7 anchor to uncompressed soil layer or the dam foundation basement rock inside of weak soil very well, and boring will be cleaned up before installing; According to field geology and design conditions determination magnet ring 4 and tongue tube-resistive sensing elements 5 buried depth position of being sealed in stainless steel guide rod 2.
Bottom common guide rod 3, install anchorage head 7, anchorage head 7 and common guide rod 3 are tightly connected, and anchorage head threaded hole of steel 13 is worn a steel wire, more than hole depth about 3 meters of the length of steel wire, is fixed on a firm thing outside steel wire; And in guide rod outside, settlement observation pipe 1 is installed, guide rod overlaps 1 guide rod centering rubber ring 14 every 1m, and anchorage head 3 has one section and settlement observation pipe 1 compact siro spinning technology; In the place will measuring delaminating deposition, stainless steel guide rod 2 is installed, guide rod overlaps 1 guide rod centering rubber ring 14 every 1m simultaneously, and installing magnet ring 4 from settlement observation pipe 1 outer tip end 1/3 place measuring delaminating deposition, mounted guide rod is put into the hole of having bored; When guide rod mouth of pipe distance aperture is about about 50cm, outside hole, adopts temporary fixture to fix guide rod, guide rod freely can not be moved up and down in hole; Guide rod joint for sealing connecting 6 is installed; Again next joint guide rod is installed and be fixed on joint for sealing connecting joint 6, tighten; Taut wire, unclamps fixture, installs next joint settlement observation pipe 1, settlement observation pipe 1 50cm shorter in mounted guide rod; Unclamp steel wire, slowly guide rod and settlement observation pipe 1 are put into hole;
Repeat to install common guide rod 3 and stainless steel guide rod 2 and settlement observation pipe 1, until guide rod and settlement observation pipe 1 reach predetermined burial place.
Guide rod and settlement observation pipe 1 Embedded installation complete back-guiding rod top and adopt guide rod seal cover 9 to seal, and sensor data cable 11 accumulates a single data cable and draws from outlet device 12 before the outlet device of guide rod top; Protect settlement observation pipe 1 at settlement observation pipe 1 top sedimentation pipe over cap 10, sensing data cable draws the soil body from settlement observation protection of pipe lid 10 lateral aperture, and access sensor signal receives readout instrument can directly read sedimentation reading.
Backfill closely knit between the settlement observation pipe 1 completed at Embedded installation and hole wall, magnet ring 4 and the soil body are combined closely, and magnet ring 4 embeds in the soil body firmly.
Before the present invention measures the equipment Embedment and installation of Deep Thick Soft Ground or covering layer delaminating deposition, tongue tube-resistive sensing elements 5 is installed on stainless steel guide rod 2 inside by tongue tube-resistive sensing elements fixator 8 fixing seal, sensor data cable 11 is drawn from tongue tube-resistive sensing elements 5 upper end, finally before the outlet device 12 of guide rod top, accumulates a single data cable.
The equipment that the present invention measures Deep Thick Soft Ground or covering layer delaminating deposition mainly adds anchorage head 7 and one from basement rock to the guide rod at covering layer top in settlement observation pipe 1 inside, stainless steel guide rod 2 is adopted in the place measuring delaminating deposition, tongue tube-resistive sensing elements 5 has been installed in stainless steel guide rod 2 inside, by the tongue tube of the tongue tube-resistive sensing elements 5 in the magnetic attracting stainless steel guide rod 2 of magnet ring 4, realize automatically measuring sedimentation by the change in displacement of measured resistance value reaction magnetic ring.
Claims (9)
1. measure the equipment of Deep Thick Soft Ground or covering layer delaminating deposition for one kind, be embedded with settlement observation pipe in the borehole, guide rod is provided with in this settlement observation pipe, it is characterized in that, described guide rod is formed by connecting by some common guide rods and stainless steel guide rod, wherein, stainless steel guide rod is adopted in the place will measuring delaminating deposition; Be provided with anchorage head bottom described guide rod, this anchorage head and guide rod are tightly connected, simultaneously one section and settlement observation pipe compact siro spinning technology of this anchorage head; Described guide rod top is provided with guide rod seal cover, and sealing covers and is provided with outlet device; Described stainless steel guide rod inside is provided with tongue tube-resistive sensing elements; The data wire of described tongue tube-resistive sensing elements accumulates a single data cable before the outlet device at guide rod top, and receives readout instrument by described outlet device and external electric signal and be connected; Outside settlement observation pipe, need the place measuring delaminating deposition to be set with magnet ring;
The concrete structure of described tongue tube-resistive sensing elements is: tongue tube-resistive sensing elements is made up of on insulating slab tongue tube and resistant series, article two, parallel resistor stripe is parallel is fixed on insulating slab both sides, and parallel resistance is connected in series by tongue tube 5mm mono-section of order piecemeal; Magnet ring adopts the soil body outside claw fixed structure and settlement observation pipe to be connected the entirety for synchronous shift, during soil body compressive strain, sedimentation ring is subjected to displacement change along sedimentation pipe, in the stainless steel guide rod that magnet ring is displaced to position, tongue tube reed connects by after the magnetic attracting of magnet ring, circuit pathways, receives by sensor signal the resistance value that readout instrument can record now path; Because in the tongue tube of tongue tube-resistance-type in stainless steel guide rod and resistance series connection structure, tongue tube is uniform with 5mm spacing, its settlement measurement precision is 5mm; It is special readout instrument that sedimentation signal accepts readout instrument, output voltage 0 ~ 5V.
2. the equipment of measurement Deep Thick Soft Ground according to claim 1 or covering layer delaminating deposition, is characterized in that, described anchorage head is provided with threaded hole of steel, this threaded hole of steel is installed with a steel wire, more than hole depth 3 meters of steel wire length, fixing outside steel wire.
3. the equipment of measurement Deep Thick Soft Ground according to claim 1 or covering layer delaminating deposition, is characterized in that, described guide rod overlaps a centering rubber ring every 1m.
4. the equipment of measurement Deep Thick Soft Ground according to claim 1 or covering layer delaminating deposition, is characterized in that, described stainless steel guide rod 2m/ root, common guide rod 1m/ root; Described stainless steel guide rod is connected with common guide rod guide rod joint for sealing connecting; Sealing ring is had between guide rod joint for sealing connecting and guide rod.
5. the equipment of measurement Deep Thick Soft Ground according to claim 1 or covering layer delaminating deposition, it is characterized in that, there is at the two ends of described tongue tube-resistive sensing elements fixator fixing seal that tongue tube-resistive sensing elements is installed, tongue tube-resistive sensing elements can not be moved.
6. the equipment of measurement Deep Thick Soft Ground according to claim 1 or covering layer delaminating deposition, is characterized in that, the outer tube mouth of pipe of described settlement observation pipe adopts the protection of sedimentation pipe over cap;
Outside settlement observation pipe, be set with the position of magnet ring, be at settlement observation pipe outer tip end 1/3 place measuring delaminating deposition.
7. the equipment of measurement Deep Thick Soft Ground according to claim 1 or covering layer delaminating deposition, it is characterized in that, described guide rod top has guide rod seal cover and outlet device, and the data wire of described tongue tube-resistive sensing elements is accumulated a single data cable and drawn by outlet device and receive readout instrument with external electric signal and be connected before the outlet device at guide rod top.
8. the equipment of measurement Deep Thick Soft Ground according to claim 1 or covering layer delaminating deposition, it is characterized in that, step is as follows,
1) the position boring carrying out Deep Thick Soft Ground or covering layer delaminating deposition deformation measurement is being needed; The degree of depth of Deep Thick Soft Ground boring reaches weak soil bottom not by lower 3 meters of the uncompressed soil layer that upper load affects, darker than basement rock 3 meters of the degree of depth of dam foundation covering layer boring, make anchorage head anchor to uncompressed soil layer and the dam foundation covering layer bottom basement rock inside of soft foundation very well, and boring will be cleaned up before installing;
2) in guide rod outside, settlement observation pipe is installed, guide rod overlaps a guide rod centering rubber ring every 1m makes guide rod be positioned in the middle part of settlement observation pipe all the time, settlement observation pipe and anchorage head have one section of compact siro spinning technology, in the place will measuring delaminating deposition, stainless steel guide rod is installed, and from settlement observation pipe outer tip end 1/3 place measuring delaminating deposition, magnet ring is being installed, mounted guide rod and observation sedimentation pipe are put into the hole of having bored;
3) when guide rod mouth of pipe distance aperture 50cm, outside hole, adopt temporary fixture to fix guide rod, guide rod freely can not be moved up and down in hole;
4) guide rod joint for sealing connecting is installed;
5) again next joint guide rod installation is fixed on joint for sealing connecting joint, tightens;
6) taut wire, unclamps fixture, installs next joint settlement observation pipe, settlement observation pipe 50cm shorter in mounted guide rod;
7) unclamp steel wire, slowly guide rod and settlement observation pipe are put into hole;
8) step 2 is repeated)-step 7), until guide rod and settlement observation pipe reach predetermined burial place;
9) guide rod Embedded installation complete after top adopt guide rod seal cap sealing, survey data cable is drawn from outlet device;
10) install settlement observation protection of pipe lid, backfill closely knit between settlement observation pipe and hole wall, magnet ring and the soil body are combined closely, and magnet ring embeds in the soil body firmly.
9. the method to set up of the equipment of measurement Deep Thick Soft Ground according to claim 8 or covering layer delaminating deposition, it is characterized in that, in step 2) before increase in steps 2)-1: bottom guide rod, anchorage head is installed, anchorage head and common guide rod adopt to be tightly connected, anchorage head threaded hole of steel is worn a steel wire, more than hole depth 3 meters of the length of steel wire, is fixed on outside steel wire on a firm thing.
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| CN201410201969.5A CN103953025B (en) | 2014-05-13 | 2014-05-13 | Measure equipment and the method to set up thereof of Deep Thick Soft Ground or covering layer delaminating deposition |
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| CN201410201969.5A CN103953025B (en) | 2014-05-13 | 2014-05-13 | Measure equipment and the method to set up thereof of Deep Thick Soft Ground or covering layer delaminating deposition |
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