CN100560874C - A kind of pore water pressure sensor protecting equipment and assembling constructing method thereof - Google Patents
A kind of pore water pressure sensor protecting equipment and assembling constructing method thereof Download PDFInfo
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- CN100560874C CN100560874C CNB2006101189459A CN200610118945A CN100560874C CN 100560874 C CN100560874 C CN 100560874C CN B2006101189459 A CNB2006101189459 A CN B2006101189459A CN 200610118945 A CN200610118945 A CN 200610118945A CN 100560874 C CN100560874 C CN 100560874C
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Abstract
The invention discloses a kind of pore water pressure sensor protecting equipment; it is characterized in that being provided with in the first segment seamless steel pipe sensor cave; this sensor cave is provided with sensor bracket; this sensor bracket is equipped with pore water pressure sensor; be provided with positioning bolt in rear end, sensor cave; be provided with the expanded rubber piece in the first segment seamless steel pipe after the positioning bolt; the expanded rubber piece contacts with positioning bolt; filling expansion clay ball in the first segment seamless steel pipe after the expanded rubber piece; the front end of first segment seamless steel pipe is provided with the taper sand pocket, is filled with sand in the sand pocket.The present invention is by using the conventional material on existing equipment and the market, and the method for embedding of pore water pressure sensor is improved.The invention has the advantages that and implement simply, cheap, need not just can finish assembling of the present invention and construction through special training, time window condition is with deep feeling buried in each hole underground, generally just can finish in 2～3 hours.
Description
Technical field:
The present invention relates to the civil engineering field, particularly the pore water pressure sensor and the assembling constructing method thereof of used band protective device when foundation stability is monitored.
Background technology:
In building and civil works, foundation stability monitoring is very important, and its monitoring result not only can design as construction, the foundation when constructing, also can be for for the purpose of construction use, and the early warning of implementations steady in a long-term.The pore water pressure of measuring the soil body generally uses in engineering construction as a kind of monitoring means commonly used.
But at present pore water pressure sensor spoilage during burying underground is higher, especially bigger in the depth of burying, and under the thicker again situation of macadam thickness, pore water pressure sensor is very easily damaged in put procedure; On the other hand, because the pore water pressure measurement is to measure soil body pore water pressure under the prerequisite of certain depth, and conventional method can not guarantee that sensor is placed into certain depth.Of paramount importancely be, in use, traditional pore water pressure is subjected to the influence of factors such as soil deformation, displacement, is easy to receive damage, and especially sensor lead ruptures because of tension especially easily.
Summary of the invention:
An object of the present invention is to provide a kind of pore water pressure sensor protecting equipment, make pore water pressure sensor can carry out burial and construction fast, safely, easily, and can be used for the foundation stability monitoring of correlation engineering chronically.
To achieve these goals; technical scheme of the present invention is: a kind of pore water pressure sensor protecting equipment; comprise the first segment seamless steel pipe; it is characterized in that being provided with in the first segment seamless steel pipe sensor cave; this sensor cave is provided with sensor bracket; this sensor bracket is equipped with pore water pressure sensor; be provided with positioning bolt in rear end, sensor cave; be provided with the expanded rubber piece in the first segment seamless steel pipe after the positioning bolt; the expanded rubber piece contacts with positioning bolt; filling expansion clay ball in the first segment seamless steel pipe after the expanded rubber piece, the front end of first segment seamless steel pipe is provided with the taper sand pocket, is filled with sand in the sand pocket.Sensor bracket in the first segment seamless steel pipe is connected with wire rope, pore water pressure sensor lead-in wire in wire rope and the first segment seamless steel pipe is held together, the other end of wire rope and pore water pressure sensor lead-in wire pass the expanded rubber piece together, stretch out then outside the first segment seamless steel pipe.
The rear end of first segment seamless steel pipe links with the front end that is connected steel pipe, the rear end that connects steel pipe is connected with the front end of the second joint seamless steel pipe, also be provided with the sensor cave in the second joint seamless steel pipe, this sensor cave is provided with sensor bracket, this sensor bracket is equipped with pore water pressure sensor, be provided with positioning bolt in rear end, sensor cave, be provided with the expanded rubber piece in the second joint seamless steel pipe after the positioning bolt, the expanded rubber piece contacts with positioning bolt, filling expansion clay ball in the second joint seamless steel pipe after the expanded rubber piece.
The rear end of the second joint seamless steel pipe is connected steel pipe with another front end links, the rear end that connects steel pipe is connected with the front end of the 3rd joint seamless steel pipe, also be provided with the sensor cave in the 3rd joint seamless steel pipe, this sensor cave is provided with sensor bracket, this sensor bracket is equipped with pore water pressure sensor, be provided with positioning bolt in rear end, sensor cave, be provided with the expanded rubber piece in the 3rd joint seamless steel pipe after the positioning bolt, the expanded rubber piece contacts with positioning bolt, filling expansion clay ball in the 3rd joint seamless steel pipe after the expanded rubber piece.
Another object of the present invention provides a kind of assembling constructing method of pore water pressure sensor protecting equipment; make pore water pressure sensor can carry out burial and construction fast, safely, easily, and can be used for the foundation stability monitoring of correlation engineering chronically.
To achieve these goals, technical scheme of the present invention is: a kind of assembling constructing method of pore water pressure sensor protecting equipment is characterized in that it may further comprise the steps: A, be drilled with pore water pressure sensor and bury the hole underground; B, assembling first segment seamless steel pipe; C, with loop wheel machine the first segment seamless steel pipe that assembles is put into and to be buried underground the hole, put into the expanded clay ball at first segment seamless steel pipe afterbody.Wherein step B is specially: pore water pressure sensor is installed on the sensor bracket in the first segment seamless steel pipe, the expanded rubber piece is filled in the first segment seamless steel pipe, make the expanded rubber piece contact with positioning bolt, pore water pressure sensor in first segment seamless steel pipe lead-in wire and the wire rope that is fixed on the sensor bracket are bound together, pass the expanded rubber piece then together, and in the sand pocket of first segment seamless steel pipe front end the filling sand.
The assembling constructing method of this pore water pressure sensor protecting equipment is further comprising the steps of: D, the assembling second joint seamless steel pipe; E, the front end that will connect steel pipe are connected with the first segment seamless steel pipe; F, the second joint seamless steel pipe that will assemble with loop wheel machine are sling, with the front end and the rear end connection that be connected steel pipe of bolt with this second joint seamless steel pipe; The pore water pressure sensor lead-in wire that G, the wire rope that will pass the first segment seamless steel pipe and pore water pressure sensor lead-in wire and second save in the seamless steel pipe is held together, pass the expanded rubber piece in the second joint seamless steel pipe then together, pass the second joint seamless steel pipe again; H, the second joint seamless steel pipe is put into and buried the hole underground, put into the expanded clay ball at the afterbody of the second joint seamless steel pipe.
The assembling constructing method of this pore water pressure sensor protecting equipment is further comprising the steps of: I, assembling the 3rd joint seamless steel pipe; J, another front end and second that connects steel pipe is saved seamless steel pipe be connected; K, the 3rd joint seamless steel pipe that will assemble with loop wheel machine are sling, with the front end and the rear end connection that be connected steel pipe of bolt with the 3rd joint seamless steel pipe; The pore water pressure sensor lead-in wire that L, the wire rope that will pass the second joint seamless steel pipe and pore water pressure sensor lead-in wire and the 3rd save in the seamless steel pipe is held together, pass the expanded rubber piece in the 3rd joint seamless steel pipe then together, pass the 3rd joint seamless steel pipe again; M, the 3rd joint seamless steel pipe is put into and buried the hole underground, put into the expanded clay ball at the afterbody of the 3rd joint seamless steel pipe.
The present invention is by using the conventional material on existing equipment and the market, and the method for embedding of pore water pressure sensor is improved.The invention has the advantages that and implement simply, cheap, need not just can finish assembling of the present invention and construction through special training, time window condition is with deep feeling buried in each hole underground, generally just can finish in 2～3 hours.
Description of drawings:
Fig. 1 is a schematic diagram of the present invention
Fig. 2 is the schematic diagram of first segment seamless steel pipe
Fig. 3 is the schematic diagram of other seamless steel pipe
Fig. 4 is for connecting the schematic diagram of steel pipe
Fig. 5 is the schematic diagram of sensor bracket
Fig. 6 a is one of user mode figure of the present invention
Fig. 6 b is two of user mode figure of the present invention
The specific embodiment:
Below in conjunction with drawings and Examples the present invention is further described.
A kind of pore water pressure sensor protecting equipment; comprise first segment seamless steel pipe 1; it is characterized in that being provided with in the first segment seamless steel pipe 1 sensor cave 2; this sensor cave 2 is provided with sensor bracket 3; on this sensor bracket 3 pore water pressure sensor 4 is installed; be provided with positioning bolt 5 in 2 rear ends, sensor cave; be provided with expanded rubber piece 6 in the first segment seamless steel pipe 1 after the positioning bolt 5; expanded rubber piece 6 contacts with positioning bolt 5; filling expansion clay ball 7 in the first segment seamless steel pipe 1 after the expanded rubber piece 6; the front end of first segment seamless steel pipe 1 is provided with taper sand pocket 11, is filled with sand in the sand pocket.Sensor bracket 3 in the first segment seamless steel pipe 1 is connected with wire rope, the lead-in wire of the pore water pressure sensor 4 in wire rope and the first segment seamless steel pipe 1 is held together, the lead-in wire of the other end of wire rope and pore water pressure sensor 4 passes expanded rubber piece 6 together, stretches out then outside the first segment seamless steel pipe 1.
The rear end of first segment seamless steel pipe 1 links with the front end that is connected steel pipe 10, the rear end that connects steel pipe 10 is connected with the front end of the second joint seamless steel pipe 12, also be provided with sensor cave 2 in the second joint seamless steel pipe 12, this sensor cave 2 is provided with sensor bracket 3, this sensor bracket 3 also is equipped with pore water pressure sensor, be provided with positioning bolt 5 in 2 rear ends, sensor cave, also be provided with expanded rubber piece 6 in the second joint seamless steel pipe 12 after the positioning bolt 5, expanded rubber piece 6 contacts with positioning bolt 5, filling expansion clay ball 7 in the second joint seamless steel pipe 12 after the expanded rubber piece 6.
If also have follow-up sensor, then need connect the 3rd joint seamless steel pipe again, the structure of the 3rd joint seamless steel pipe is identical with the structure of the second joint seamless steel pipe.
It needs to be noted, in accompanying drawing, manual and claim, if have only a joint seamless steel pipe, then this joint seamless steel pipe is exactly a first segment seamless steel pipe 1, if at least two joint seamless steel pipes are arranged, then be positioned at bottommost, promptly foremost be first segment seamless steel pipe 1, the back be followed successively by the second joint seamless steel pipe 12, the 3rd joint seamless steel pipe 12 ...Different with other seamless steel pipe is that the bottom of first segment seamless steel pipe 1 is provided with taper sand pocket 11, is filled with sand in the sand pocket 11.In the accompanying drawings, other seamless steel pipe except that first segment seamless steel pipe 1 is all represented with label 12 as the second joint seamless steel pipe, the 3rd joint seamless steel pipe.
Structure according to this pore water pressure sensor protecting equipment, design a kind of assembling constructing method of pore water pressure sensor protecting equipment, it is characterized in that it may further comprise the steps: A, be drilled with pore water pressure sensor and bury the hole underground, technical requirements is with the general geological drilling hole of fetching earth, and the aperture is generally greater than 100mm; B, assembling first segment seamless steel pipe 1, pore water pressure sensor 4 is installed on the sensor bracket 3 in the first segment seamless steel pipe 1, expanded rubber piece 6 is filled in the first segment seamless steel pipe 1, make expanded rubber piece 6 withstand positioning bolt 5, pore water pressure sensor in the first segment seamless steel pipe 1 lead-in wire and the wire rope that is fixed on the sensor bracket 3 are bound together, pass expanded rubber piece 6 then together, and in the sand pocket 11 of first segment seamless steel pipe 1 front end the filling sand, wherein reserve two holes at the certain position of steel pipe 1, stationary positioned bolt 5, can be used for controlling the position of expanded rubber piece 6, avoid its landing, expanded rubber piece 6 highly is 5cm～10cm, and external diameter is reserved wire guide than the little 2.5mm～3mm of pipe diameter on the expanded rubber piece 6, the internal diameter of wire guide should be more bigger than the external diameter of pore water pressure sensor lead-in wire, expanded rubber can expand after meeting water, makes the steel pipe inwall, the space closure of lead outer wall plays water shutoff, the effect of seal pressure; C, with loop wheel machine the first segment seamless steel pipe 1 that assembles is put into and to be buried underground the hole, note, at this moment do not put earlier and do not have, put into expanded clay ball 7 at first segment seamless steel pipe 1 afterbody, about 1.5cm～the 2cm of clay ball diameter, naturally it is also closely knit to scatter behind the chance water, and enriches in steel pipe, and tamping height should be greater than 2.5cm.If next there is not subsequent sensor, then first segment seamless steel pipe 1 is put into the end, the protection wire rope and the sensor lead combing that will pass then are neat.If also have subsequent sensor, then this assembling constructing method is further comprising the steps of: D, the assembling second joint seamless steel pipe 12, pore water pressure sensor 4 is installed on second sensor bracket 3 that saves in the seamless steel pipe 12, expanded rubber piece 6 is filled in this second joint seamless steel pipe 12, made expanded rubber piece 6 prop up positioning bolt 5; E, the front end of using bolt 13 will connect steel pipe 10 are connected with first segment seamless steel pipe 1; F, the second joint seamless steel pipe 12 that will assemble with loop wheel machine are sling, with the front end and the rear end connection that be connected steel pipe 10 of bolt 13 with this second joint seamless steel pipe 12; Sensor lead in G, the wire rope that will pass first segment seamless steel pipe 1 and sensor lead and the second joint seamless steel pipe 12 is held together, and passes the expanded rubber piece 6 in the second joint seamless steel pipe 12 then together, passes the second joint seamless steel pipe 12 again; H, the second joint seamless steel pipe 12 is put into and buried the hole underground, 1 afterbody at the second joint seamless steel pipe is put into expanded clay ball 7, certainly at this moment this second joint seamless steel pipe 12 can not be put and not have, if also have subsequent sensor, then continue to connect again back one joint seamless steel pipe, put into until final section seamless steel pipe 12 and bury the hole underground.The protection wire rope and the sensor lead combing that will pass at last are neat, and whole road working procedure finishes.Number in the figure 14 is the loop wheel machine hook on hole.
According to one embodiment of present invention, in a certain sea wall section, be provided with 16 monitoring pore water pressure holes altogether, 1～3 of sensor is established in every hole.In the burial and construction of sensor, adopted above method, make the power that is mounted to of sensor reach 100%,? in time, 74 pore water pressure sensors are survived 68, and survival rate reaches 91.8%, have substantially exceeded the survival rate when using prior art.
In the present invention, seamless steel pipe is pressed the standard production specification, about generally long 9m, and external diameter 89cm, wall thickness 5mm, the length in sensor cave can be determined according to the physical length of sensor, general 500mm.Being connected of sensor lead and wire rope all belongs to prior art, therefore do not illustrate in the drawings.
Claims (10)
1; a kind of pore water pressure sensor protecting equipment; comprise the first segment seamless steel pipe; it is characterized in that being provided with in the first segment seamless steel pipe sensor cave; this sensor cave is provided with sensor bracket; this sensor bracket is equipped with pore water pressure sensor; be provided with positioning bolt in rear end, sensor cave; be provided with the expanded rubber piece in the first segment seamless steel pipe after the positioning bolt; the expanded rubber piece contacts with positioning bolt; filling expansion clay ball in the first segment seamless steel pipe after the expanded rubber piece; the front end of first segment seamless steel pipe is provided with the taper sand pocket, is filled with sand in the sand pocket.
2; pore water pressure sensor protecting equipment as claimed in claim 1; the rear end that it is characterized in that the first segment seamless steel pipe links with the front end that is connected steel pipe; the rear end of link steel pipe is connected with the front end of the second joint seamless steel pipe; also be provided with the sensor cave in the second joint seamless steel pipe; this sensor cave is provided with sensor bracket; this sensor bracket is equipped with pore water pressure sensor; be provided with positioning bolt in rear end, sensor cave; be provided with the expanded rubber piece in the second joint seamless steel pipe after the positioning bolt; the expanded rubber piece contacts with positioning bolt, filling expansion clay ball in the second joint seamless steel pipe after the expanded rubber piece.
3; pore water pressure sensor protecting equipment as claimed in claim 2; it is characterized in that the rear end of the second joint seamless steel pipe is connected steel pipe with another front end links; the rear end that connects steel pipe is connected with the front end of the 3rd joint seamless steel pipe; also be provided with the sensor cave in the 3rd joint seamless steel pipe; this sensor cave is provided with sensor bracket; this sensor bracket is equipped with pore water pressure sensor; be provided with positioning bolt in rear end, sensor cave; be provided with the expanded rubber piece in the 3rd joint seamless steel pipe after the positioning bolt; the expanded rubber piece contacts with positioning bolt, filling expansion clay ball in the 3rd joint seamless steel pipe after the expanded rubber piece.
4, pore water pressure sensor protecting equipment as claimed in claim 1; it is characterized in that the sensor bracket in the first segment seamless steel pipe is connected with wire rope; pore water pressure sensor lead-in wire in wire rope and the first segment seamless steel pipe is held together; the other end of wire rope and pore water pressure sensor lead-in wire pass the expanded rubber piece together, stretch out then outside the first segment seamless steel pipe.
5, pore water pressure sensor protecting equipment as claimed in claim 2; it is characterized in that the sensor bracket in the first segment seamless steel pipe is connected with wire rope; pore water pressure sensor lead-in wire in wire rope and the first segment seamless steel pipe is held together; the other end of wire rope and pore water pressure sensor lead-in wire pass the expanded rubber piece together; penetrate then in the second joint seamless steel pipe; be held together with the pore water pressure sensor lead-in wire in the second joint seamless steel pipe; pass the expanded rubber piece in the second joint seamless steel pipe then together, pass the second joint seamless steel pipe again.
6, a kind of assembling constructing method of pore water pressure sensor protecting equipment is characterized in that it may further comprise the steps: A, be drilled with pore water pressure sensor and bury the hole underground; B, assembling first segment seamless steel pipe; C, the first segment seamless steel pipe that assembles put into bury the hole underground, put into the expanded clay ball at first segment seamless steel pipe afterbody.
7, the assembling constructing method of pore water pressure sensor protecting equipment as claimed in claim 6; it is characterized in that step B is specially: pore water pressure sensor is installed on the sensor bracket in the first segment seamless steel pipe; the expanded rubber piece is filled in the first segment seamless steel pipe; make the expanded rubber piece contact with positioning bolt; pore water pressure sensor in first segment seamless steel pipe lead-in wire and the wire rope that is fixed on the sensor bracket are bound together; pass the expanded rubber piece then together, and in the sand pocket of first segment seamless steel pipe front end the filling sand.
8, the assembling constructing method of pore water pressure sensor protecting equipment as claimed in claim 7 is characterized in that it is further comprising the steps of: D, the assembling second joint seamless steel pipe; E, the front end that will connect steel pipe are connected with last joint seamless steel pipe; F, the second joint seamless steel pipe that will assemble are sling, with the front end and the rear end connection that is connected steel pipe of this second joint seamless steel pipe; The pore water pressure sensor lead-in wire that G, the wire rope that will pass last joint seamless steel pipe and pore water pressure sensor lead-in wire and second save in the seamless steel pipe is held together, pass the expanded rubber piece in the second joint seamless steel pipe then together, pass the second joint seamless steel pipe again; H, the second joint seamless steel pipe is put into and buried the hole underground, put into the expanded clay ball at the afterbody of the second joint seamless steel pipe.
9, the assembling constructing method of pore water pressure sensor protecting equipment as claimed in claim 8; it is characterized in that step D is specially: the second knothole crack water pressure sensor is installed on second sensor bracket that saves in the seamless steel pipe; the expanded rubber piece is filled in this second joint seamless steel pipe, made the expanded rubber piece contact with positioning bolt.
10, the assembling constructing method of pore water pressure sensor protecting equipment as claimed in claim 8 or 9 is characterized in that it is further comprising the steps of: I, assembling the 3rd joint seamless steel pipe; J, another front end and second that connects steel pipe is saved seamless steel pipe be connected; K, the 3rd joint seamless steel pipe that will assemble with loop wheel machine are sling, with the front end and the rear end connection that be connected steel pipe of bolt with the 3rd joint seamless steel pipe; The pore water pressure sensor lead-in wire that L, the wire rope that will pass the second joint seamless steel pipe and pore water pressure sensor lead-in wire and the 3rd save in the seamless steel pipe is held together, pass the expanded rubber piece in the 3rd joint seamless steel pipe then together, pass the 3rd joint seamless steel pipe again; M, the 3rd joint seamless steel pipe is put into and buried the hole underground, put into the expanded clay ball at the afterbody of the 3rd joint seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101189459A CN100560874C (en) | 2006-11-30 | 2006-11-30 | A kind of pore water pressure sensor protecting equipment and assembling constructing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101189459A CN100560874C (en) | 2006-11-30 | 2006-11-30 | A kind of pore water pressure sensor protecting equipment and assembling constructing method thereof |
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| CN101191335A CN101191335A (en) | 2008-06-04 |
| CN100560874C true CN100560874C (en) | 2009-11-18 |
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| CNB2006101189459A Active CN100560874C (en) | 2006-11-30 | 2006-11-30 | A kind of pore water pressure sensor protecting equipment and assembling constructing method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352620A (en) * | 2011-09-10 | 2012-02-15 | 无锡市政设计研究院有限公司 | Method and device for measuring and monitoring groundwater pressure |
| CN103195044B (en) * | 2013-03-25 | 2015-09-02 | 长沙理工大学 | A kind of deep embedding device for pore pressure gauge |
| CN104805822B (en) * | 2015-04-03 | 2016-06-08 | 水利部交通运输部国家能源局南京水利科学研究院 | The pre-buried fixing device of single hole multiple spot pore pressure gauge and method for embedding thereof |
| 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 |
| CN105572323B (en) * | 2016-01-29 | 2017-12-29 | 南京全水信息科技有限公司 | A kind of soil sensor |
| CN105865703A (en) * | 2016-04-11 | 2016-08-17 | 中铁大桥科学研究院有限公司 | Wave pressure sensing device embedded in temporary structure and manufacture and use method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408481A (en) * | 1982-03-12 | 1983-10-11 | The United States Of America As Represented By The Secretary Of The Air Force | Pore pressure probe assembly and two-stage emplacement thereof |
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2006
- 2006-11-30 CN CNB2006101189459A patent/CN100560874C/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4408481A (en) * | 1982-03-12 | 1983-10-11 | The United States Of America As Represented By The Secretary Of The Air Force | Pore pressure probe assembly and two-stage emplacement thereof |
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| CN101191335A (en) | 2008-06-04 |
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