CN103195044B - A kind of deep embedding device for pore pressure gauge - Google Patents
A kind of deep embedding device for pore pressure gauge Download PDFInfo
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- CN103195044B CN103195044B CN201310115978.8A CN201310115978A CN103195044B CN 103195044 B CN103195044 B CN 103195044B CN 201310115978 A CN201310115978 A CN 201310115978A CN 103195044 B CN103195044 B CN 103195044B
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- pressure gauge
- pore pressure
- steel pipe
- clip
- sleeve pipe
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of deep embedding device for pore pressure gauge, comprise steel pipe (1), cord (3), cable (5), sleeve pipe (6), clip (7) and pore pressure gauge (9), apparatus structure is light and handy, be easy to operation, pore pressure gauge buries that quality is good, efficiency is high underground.
Description
Technical field
The invention belongs to technical field of civil engineering, relate to a kind of pore pressure gauge embedded device.
Background technology
In soft foundation, pore pressure gauge is generally buried underground by boring, and adopts mud off in pore forming process, to keep the stable of hole wall.Due to the easy undergauge of pore-forming back aperture in weak soil, and mud also can produce uplift pressure to the pore pressure gauge of transferring and signal cable line thereof in hole, therefore the quality of burying underground of pore pressure gauge also exists following problem: the signal cable line that (1) indicates length mark is non-rigid scale, mislead the depth of burying sometimes, cause pore pressure gauge likely can not arrive set depth, the pore water pressure of thus measured pore water pressure not necessarily projected depth soil layer; (2) pore pressure gauge can not be placed in the middle in hole, and pore pressure gauge and signal transmssion line joint area can not get protecting, and the process of burying underground exists certain spoilage, and the pressure gauge buried underground can be made to lose due measurement effect; (3) data measured by pore pressure gauge are not because truly reflecting by burying Mass Interference underground the actual pore water pressure setting soil layer.Du Ce etc. propose a kind of deep embedding device for pore pressure gauge, can overcome the above problems, but this apparatus structure is complicated and heavy, and generating process requires strict; Require excessive to bore diameter, Embedded installation process is loaded down with trivial details, and cost is higher, limits it and promotes the use of.
Therefore, design a kind of light structure, be easy to the pore pressure gauge embedded device of operation, efficiency, protection pore pressure gauge etc. are buried underground for raising pore pressure gauge, there is important practical engineering value.
Summary of the invention
The object of the present invention is to provide a kind of pore pressure gauge embedded device, can be used for burying pore pressure gauge underground efficiently and accurately in soft foundation, thus obtain the reliability data of soft subgrade soil body pore water pressure along change in depth rule.
A kind of deep embedding device for pore pressure gauge, comprises steel pipe (1), cord (3), cable (5), sleeve pipe (6), clip (7) and pore pressure gauge (9),
It is characterized in that described steel pipe (1) is connected with sleeve pipe (6) by joint (4), it is inner that clip (7) and pore pressure gauge (9) are positioned at sleeve pipe (6);
Described clip (7) comprises left handle (7-1), right handles (7-2), left intermediate plate (7-3), right clamping piece (7-4) and clip rotating shaft (7-5), there is between described left handle (7-1) and right handles (7-2) spring (8), left handle (7-1) is connected with left intermediate plate (7-3), right handles (7-2) is connected with right clamping piece (7-4), sleeve pipe (6) is passed for fixing this clip (7) in described clip rotating shaft (7-5) two ends, described left intermediate plate (7-3) and right clamping piece (7-4) are for fixing pore pressure gauge (9),
The quantity of described cord (3) is two, and one end is for connecting left handle (7-1) and right handles (7-2), and the other end extends to outside by steel pipe (1);
Described cable (5) one end is connected with pore pressure gauge (9), and the other end extends to outside by steel pipe (1).
Described steel pipe can have multiple, is interconnected by tube coupling (2).
Described diameter of steel tube 3cm, often saves long 1m, and the connection between tube coupling (2) is for being threaded;
Described tube coupling (2) length 5cm.
Described steel pipe (1) is connected for being threaded with sleeve pipe (6) by joint (4).
Described sleeve pipe (6) length 10cm, diameter 10cm.
Advantageous Effects:
The power of transferring that equipment provided by the present invention is being buried the deadweight of device in process underground and put on drilling rod can overcome the resistance that in hole wall undergauge or hole, high-density slurry produces, and steel pipe enter the metering ruler that hole length can be used as pore pressure gauge buried depth, pore pressure gauge can be guaranteed to send to projected depth, can vertically insert in soil layer after projected depth sent to by pore pressure gauge, ensure authenticity and the reliability of test data; In addition, steel pipe can also protect the wire of pore pressure gauge; Have bury that quality is good underground, depth localization accurately, bury the high beneficial effect of efficiency underground.
Accompanying drawing illustrates:
Fig. 1 structural representation of the present invention;
Fig. 2 is right cross section view of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment to invention has been further description.
A kind of deep embedding device for pore pressure gauge, comprises steel pipe (1), cord (3), cable (5), sleeve pipe (6), clip (7) and pore pressure gauge (9),
It is characterized in that described steel pipe (1) is connected with sleeve pipe (6) by joint (4), it is inner that clip (7) and pore pressure gauge (9) are positioned at sleeve pipe (6);
Described clip (7) comprises left handle (7-1), right handles (7-2), left intermediate plate (7-3), right clamping piece (7-4) and clip rotating shaft (7-5), there is between described left handle (7-1) and right handles (7-2) spring (8), left handle (7-1) is connected with left intermediate plate (7-3), right handles (7-2) is connected with right clamping piece (7-4), sleeve pipe (6) is passed for fixing this clip (7) in described clip rotating shaft (7-5) two ends, described left intermediate plate (7-3) and right clamping piece (7-4) are for fixing pore pressure gauge (9), insert behind precalculated position until pore pressure gauge, namely drawing-down rope unclamps clip mouth, and itself and pore pressure gauge (9) are departed from, and then up carry steel pipe, pore pressure gauge has just been stayed in soil, convenient and swift.
The quantity of described cord (3) is two, and one end is for connecting left handle (7-1) and right handles (7-2), and the other end extends to outside by steel pipe (1);
Described cable (5) one end is connected with pore pressure gauge (9), and the other end extends to outside by steel pipe (1).
Described steel pipe can have multiple, is interconnected by tube coupling (2).
Described diameter of steel tube 3cm, often saves long 1m, and the connection between tube coupling (2) is for being threaded;
Described tube coupling (2) length 5cm.
Described steel pipe (1) is connected for being threaded with sleeve pipe (6) by joint (4).
Described sleeve pipe (6) length 10cm, diameter 10cm.
It is as follows that the present invention specifically buries step underground:
(1) permeable stone of pore pressure gauge end to be buried underground is taken out immersion 24 hours or boiling water in water and boil 1 ~ 2 hour, get rid of wherein air, then the permeable geotextiles of one deck is wrapped up in its pore pressure gauge permeable stone part, prevent from burying underground mud blocking permeable stone in process, affect pore pressure gauge test effect;
(2) boring is buried underground until the pre-depth of burying at pore pressure gauge;
(3) pretreated pore pressure gauge upper end clip is clamped, to be fixed in sleeve pipe, with joint by sleeve pipe and fastener for connection;
(4) pore pressure gauge fixed is put into hole, until during steel pipe upper end is by access aperture time, pipe is sent in termination, next joint steel pipe is penetrated cord and pore pressure gauge signal cable line, and be connected with the steel pipe upper end inserted in the hole with tube coupling, after tightening, steel pipe is continued down to put into hole gently;
(5) adapter repeated in step 4 inserts link, until pore pressure gauge arrives the pre-buried degree of depth;
(6) to hold with a firm grip steel pipe, ensure that steel pipe can not upper and lower displacement, then slowly up drawing-down rope, unclamp clip;
(7) after confirming that clip unclamps, steel pipe is rotated gently in left and right, and itself and pore pressure gauge are departed from, and slowly up lifts steel pipe, pore pressure gauge has been left in soil layer, pulls out a joint and break a joint, till extracting completely in trombone slide process.
(8) Xiang Kongzhong backfills clay, and with swell soil or rich clay sealing of hole, namely burying underground of a pore pressure gauge complete.
(9) repeat above step, burying underground of the pore pressure gauge of different depth can be completed.
Certainly; the above is only one embodiment of the present invention; should be understood that those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications all belong within the protection domain of the claims in the present invention.
Claims (5)
1. a deep embedding device for pore pressure gauge, comprises steel pipe (1), cord (3), cable (5), sleeve pipe (6), clip (7) and pore pressure gauge (9),
It is characterized in that described steel pipe (1) is connected with sleeve pipe (6) by joint (4), it is inner that clip (7) and pore pressure gauge (9) are positioned at sleeve pipe (6);
Described clip (7) comprises left handle (7-1), right handles (7-2), left intermediate plate (7-3), right clamping piece (7-4) and clip rotating shaft (7-5), there is between described left handle (7-1) and right handles (7-2) spring (8), left handle (7-1) is connected with left intermediate plate (7-3), right handles (7-2) is connected with right clamping piece (7-4), sleeve pipe (6) is passed for fixing this clip (7) in described clip rotating shaft (7-5) two ends, described left intermediate plate (7-3) and right clamping piece (7-4) are for fixing pore pressure gauge (9),
The quantity of described cord (3) is two, and one end is for connecting left handle (7-1) and right handles (7-2), and the other end extends to outside by steel pipe (1);
Described cable (5) one end is connected with pore pressure gauge (9), and the other end extends to outside by steel pipe (1);
Described steel pipe has multiple, is interconnected by tube coupling (2).
2. a kind of deep embedding device for pore pressure gauge according to claim 1, is characterized in that: described diameter of steel tube 3cm, often saves long 1m, and the connection between tube coupling (2) is for being threaded.
3. a kind of deep embedding device for pore pressure gauge according to claim 1, is characterized in that, described tube coupling (2) length 5cm.
4. a kind of deep embedding device for pore pressure gauge according to claim 1, is characterized in that, described steel pipe (1) is connected for being threaded with sleeve pipe (6) by joint (4).
5. a kind of deep embedding device for pore pressure gauge according to claim 1, is characterized in that, described sleeve pipe (6) length 10cm, diameter 10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115978.8A CN103195044B (en) | 2013-03-25 | 2013-03-25 | A kind of deep embedding device for pore pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115978.8A CN103195044B (en) | 2013-03-25 | 2013-03-25 | A kind of deep embedding device for pore pressure gauge |
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| Publication Number | Publication Date |
|---|---|
| CN103195044A CN103195044A (en) | 2013-07-10 |
| CN103195044B true CN103195044B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310115978.8A Active CN103195044B (en) | 2013-03-25 | 2013-03-25 | A kind of deep embedding device for pore pressure gauge |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032719B (en) * | 2014-03-14 | 2015-10-28 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of dam seepage pressure tester |
| CN104963329A (en) * | 2015-07-07 | 2015-10-07 | 天津水运工程勘察设计院 | Soft foundation pore pressure meter embedding method |
| CN109629545A (en) * | 2019-01-08 | 2019-04-16 | 中交上海航道勘察设计研究院有限公司 | A kind of embedded sealing device and application method of novel pore pressure gauge |
| CN111721696A (en) * | 2020-05-12 | 2020-09-29 | 温州大学 | Underground soil body effective pressure testing device and testing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0441810A (en) * | 1990-06-07 | 1992-02-12 | Shimizu Corp | Multi-stage type pore water pressure measuring method |
| CN2384011Y (en) * | 1999-03-25 | 2000-06-21 | 张博 | Clamp |
| CN101191335A (en) * | 2006-11-30 | 2008-06-04 | 上海科达市政交通设计院 | Pore water pressure sensor protecting equipment and assembling constructing method thereof |
| CN201933477U (en) * | 2010-12-29 | 2011-08-17 | 上海广联建设发展有限公司 | Deep embedding device for pore pressure gauge |
| CN202082207U (en) * | 2011-05-17 | 2011-12-21 | 成明哲 | Fixing clamp |
| CN203160223U (en) * | 2013-03-25 | 2013-08-28 | 长沙理工大学 | Pore water pressure gauge deep layer embedded device |
-
2013
- 2013-03-25 CN CN201310115978.8A patent/CN103195044B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0441810A (en) * | 1990-06-07 | 1992-02-12 | Shimizu Corp | Multi-stage type pore water pressure measuring method |
| CN2384011Y (en) * | 1999-03-25 | 2000-06-21 | 张博 | Clamp |
| CN101191335A (en) * | 2006-11-30 | 2008-06-04 | 上海科达市政交通设计院 | Pore water pressure sensor protecting equipment and assembling constructing method thereof |
| CN201933477U (en) * | 2010-12-29 | 2011-08-17 | 上海广联建设发展有限公司 | Deep embedding device for pore pressure gauge |
| CN202082207U (en) * | 2011-05-17 | 2011-12-21 | 成明哲 | Fixing clamp |
| CN203160223U (en) * | 2013-03-25 | 2013-08-28 | 长沙理工大学 | Pore water pressure gauge deep layer embedded device |
Non-Patent Citations (1)
| Title |
|---|
| 深厚软土地区孔隙水压力计埋设技术研究;付海贵等;《铁道建筑》;20101130(第11期);72-75 * |
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| CN103195044A (en) | 2013-07-10 |
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