CN105133671A - Device for connecting indoor vertical static load model pile with pressure sensor - Google Patents
Device for connecting indoor vertical static load model pile with pressure sensor Download PDFInfo
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- CN105133671A CN105133671A CN201510532762.0A CN201510532762A CN105133671A CN 105133671 A CN105133671 A CN 105133671A CN 201510532762 A CN201510532762 A CN 201510532762A CN 105133671 A CN105133671 A CN 105133671A
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- circular groove
- model pile
- pressure sensor
- static load
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Abstract
The invention provides a device for connecting an indoor vertical static load model pile with a pressure sensor; a circular groove contacted with the top of the model pile is formed in the end surface, near one end of the model pile, of the device; the side surface of the circular groove has at least one channel positioned in the radial direction and communicated with the external after penetrating through the side surface of the device; and an electric wire in the model pile directly enters a gap part in the circular groove from one end, near the device, of the model pile, and extends to the external through the channel. The electric wire of the sensor in the model pile extends outside the channel, extending to the external through the circular groove and the side surface of the circular groove, from the corresponding place of the model pile to the circular groove of the connecting device, so that the electric wire of the sensor cannot be suffered from loading pressure in a test, and is prevented from being broken in the static load test process.
Description
Technical field
The present invention relates to pile foundation vertical static load test experimental rig field, be specifically related to a kind of device for erect static load lotus Model Pile and pressure sensor in junction chamber.
Background technology
Pile foundation vertical static load test refers to: by the using function of stake, apply axial compression, axially pull out force respectively on stake top step by step or unanimously locate to apply horizontal force at pile foundation support table bottom surface absolute altitude, the sedimentation that the corresponding test point of observation stake produces in time, uplift displacement or horizontal movement, judge the test method of corresponding single pile vertical resistance pressure bearing capacity, unit for single-pile vertical anti-pulling bearing capacity or horizontal bearing capacity of single pile according to the relation (i.e. Q ~ S curve) of load and displacement.It checks one most widely used in the various methods of pile foundation (containing composite foundation, natural ground) bearing capacity at present, and be acknowledged as result of the test the most accurately, the most reliably, is put in various countries' pile foundation engineering specification or regulation.This research technique utilizes the artificial loading of various method, the actual working state on ground foundation simulation or basis, tests it and loads rear load-carrying properties and deformation behaviour.Its significant advantage is that stress condition is relatively actual, is simple and easy to use, and result of the test is directly perceived and be easy to understand into people and accept.Usually carry out the internal force of test pile self at the inside sensor installation of model testing stake in the indoor static load test of Model Pile, if and the electric wire of these sensors will be pressed down without the extraction of special arrangement in loading procedure, thus cause the loss of interruption and the experimental data tested.Warp to the existing domestic retrieval about pile foundation vertical static load test device document, and finds no the ejector of pile body internal sensor electric wire.
Summary of the invention
For overcoming the deficiency that above-mentioned existing apparatus exists, the object of the present invention is to provide a kind of device for erect static load lotus Model Pile and pressure sensor in junction chamber, it can while being connected Model Pile with pressure sensor, by the circular groove of device inside and passage, Model Pile inner sensor electric wire can be drawn, avoid electric wire to be pressed down in static load test process.
For reaching above-mentioned and other object, the invention provides a kind of device for erect static load lotus Model Pile and pressure sensor in junction chamber, the end face of described device near Model Pile one end has the circular groove with described Model Pile top contact, described circular groove side having at least one is positioned at radial upper and through described device side and the passage communicated with the external world, and the electric wire in described Model Pile directly enters the gap in described circular groove from described Model Pile near one end of described device and extends to the external world by described passage.
As preferably, described circular groove diameter is less than the diameter at described Model Pile top, and the electric wire in described Model Pile stretches out with described circular groove corresponding position and enters described circular groove and extend to the external world through described passage from the end face of described Model Pile.
As preferably, described circular groove diameter is greater than the diameter at described Model Pile top, described circular groove is inserted in described Model Pile top and described Model Pile is connected with described device, and the electric wire in described Model Pile stretches out from the side that described Model Pile top is relative with described circular groove side and enters described circular groove and extend to the external world through described passage.
As preferably, described circular groove is notch cuttype circular groove, near described Model Pile one end and the circular groove being enclosed within the top of described Model Pile is the first circular groove in described circular groove, circular groove near described pressure sensor one end in described circular groove is the second circular groove, the diameter of described second circular groove is less than the diameter of described Model Pile one end in described first circular groove, described passage communicates with the side of described second circular groove, and the electric wire in described Model Pile stretches out from the second circular groove corresponding position described in described Model Pile end face and enters described second circular groove and described passage successively.
As preferably, described circular groove has connection clamping device, and the Model Pile of being inserted in described circular groove is fixed in described circular groove.
As preferably, described connection clamping device comprises at least two and penetrates from described device side the bolt that described circular groove side arrives the described Model Pile side in described circular groove, and the active force of the described Model Pile side that described bolt gives in described circular groove balances mutually.
As preferably, there are between the described Model Pile side in described stud base and described circular groove the clamping plate that area is greater than described bolt floor space.
As preferably, there is between described clamping plate and described Model Pile side the rubber pad that area is greater than or equal to described clamping plate.
As preferably, described device and the surface of described pressure sensor contacts have at least one nipple for being threaded with described pressure sensor.
As preferably, described device is cylindrical, the axis of described circular groove and the dead in line of described device.
As preferably, all described passages are about the axis for axis symmetry of described circular groove.
Compared with prior art, the invention has the beneficial effects as follows: the invention provides a kind of device for erect static load lotus Model Pile and pressure sensor in junction chamber, the end face of described device near Model Pile one end has the circular groove with described Model Pile top contact, described circular groove side having at least one is positioned at radial upper and through described device side and the passage communicated with the external world, and the electric wire in described Model Pile directly enters the gap in described circular groove from described Model Pile near one end of described device and extends to the external world by described passage.Sensor wire in Model Pile is stretched out from the circular groove corresponding position of Model Pile and linkage the passage being extended to the external world successively by circular groove and circular groove side by the present invention, the pressure so just making sensor wire can not be loaded in test, avoids electric wire to be pressed down in static load test process.
The present invention provides connection clamping device in circular groove, and the force of sliding friction making to be inserted between Model Pile in described circular groove and described circular groove side increases.In static load test process, Model Pile is comparatively large due to the force of sliding friction between linkage, makes linkage be fixed on Model Pile top, and that avoids in test Model Pile to produce rocks and make linkage depart from Model Pile easily.
Accompanying drawing explanation
The device schematic diagram that Fig. 1 provides for the embodiment of the present invention one;
The device top view that Fig. 2 provides for the embodiment of the present invention one;
The device top view that Fig. 3 provides for the embodiment of the present invention two.
In figure: 1-linkage, 11-first circular groove, 12-second circular groove, 13-passage, 14-bolt, 15-clamping plate, 16-rubber pad, 17-nipple, 2-Model Pile, 21-electric wire, 22-sensor.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Embodiment one
For achieving the above object, the invention provides a kind of device for erect static load lotus Model Pile and pressure sensor in junction chamber, please refer to Fig. 1 and Fig. 2, in the present embodiment, linkage 1 is positioned between pressure sensor (not shown) and Model Pile 2, and preferably, linkage 1 and Model Pile 2 are all cylindrical, the axis of Model Pile 2 and the dead in line of linkage 1, Model Pile 2 is perpendicular to the bottom surface of linkage 1.Preferably, in order to save space, the diameter of linkage 1 cylinder is much larger than the height of cylinder.
Please refer to Fig. 1, the one side that linkage 1 is connected with Model Pile 2 has circular groove, this circular groove is notch cuttype circular groove, notch cuttype circular groove comprises and is positioned at the first circular groove 11 of bottom and second circular groove 12 on top, the diameter of the second circular groove 12 is less than the diameter of the first circular groove 11, please refer to Fig. 1 and Fig. 2, the first circular groove 11 inside is inserted at the top of Model Pile 2.The diameter of the first circular groove 11 is greater than the diameter of Model Pile 2, but the diameter of the second circular groove 12 is less than the diameter of Model Pile 2.
In the present embodiment, whole notch cuttype circular groove is about the axis for axis symmetry of linkage 1.
Continue referring to Fig. 1, second circular groove 12 side has at least one to be positioned in radial direction and through linkage 1 side and the passage 13 communicated with the external world, in the present embodiment, the number of passage 13 is two, and about the axis for axis symmetry of linkage 1, it is inner that the first circular groove 11 is inserted at Model Pile 2 top, but the diameter due to the second circular groove 12 is less than the diameter of Model Pile 2, therefore the second circular groove 12 is erected on Model Pile 2 end face (i.e. upper bottom surface), now the electric wire 21 in Model Pile 2 can be stretched out by the second circular groove 12 bottom surface covering place on Model Pile 2 end face and entered the second circular groove 12 and then extend to the external world by passage 13, so just make the pressure that the electric wire 21 of sensor 22 can not be loaded in test, electric wire 21 is avoided to be pressed down in static load test process.
Continue referring to Fig. 1, in the present embodiment, the diameter of the first circular groove 11 is much larger than the diameter of Model Pile 2, therefore there is the problem that Model Pile 2 easily departs from from the first circular groove 11, therefore in order to strengthen the connection of Model Pile 2 and linkage 1, connection clamping device is set in the first circular groove 11, for the connection of stable model stake 2 with linkage 1.
Please refer to Fig. 1 and Fig. 2, centered by the center of circle of the first circular groove 11, with axisymmetric mode circumferentially four bolts 14 being through to the first circular groove 11 inner model stake 2 side diametrically, in these four bolts 14, every pair of bolts 14 is all positioned at the same of the first circular groove 11 diametrically, the bottom of each bolt 14 props up the first circular groove 11 inner model stake 2 side, the active force of four bolts 14 to the first circular groove 11 inner model stake 2 side balances mutually, and the first circular groove 11 inner model stake 2 is fixed.In static load test process, when the first circular groove 11 inner model stake 2 is subject to making Model Pile 2 move up and down relative to the first circular groove 11 and makes Model Pile 2 depart from the first circular groove 11, four bolts 14 can produce the force of sliding friction of cancelling out each other with above-mentioned power to the first circular groove 11 inner model stake 2 side, and make the first circular groove 11 inner model stake 2 can not depart from the first circular groove 11.
Preferably, please refer to Fig. 2, there are between the bottom of bolt 14 and the first circular groove 11 inner model stake 2 side the clamping plate 15 that area is greater than described bolt 14 floor space, these clamping plate 15 are the contacts area in order to increase bottom bolt 14 and between the first circular groove 11 inner model stake 2 side, thus increase force of sliding friction.
Preferably, please refer to Fig. 2, have the rubber pad 16 that area is greater than or equal to clamping plate 15 between clamping plate 15 and the first circular groove 11 inner model stake 2 side, this is to prevent the first circular groove 11 inner model stake 2 side from wearing and tearing, adding the application life of Model Pile 12.
Please refer to Fig. 1, linkage 1 lower end is connected with Model Pile 2, upper end is connected with pressure sensor (not shown), the mode connected is for being threaded, namely on the surface of one end that linkage 1 is connected with pressure sensor, there is at least one nipple 17, when nipple 17 number is 1, nipple 17 is positioned on the axis of linkage 1; When the number of nipple 17 be greater than 1 and for odd number time, the distribution of nipple 17 is about the center of circle Central Symmetry of linkage 1, when the number of nipple 17 be greater than 1 and for even numbers time, the axis for axis symmetry of distribution about linkage 1 of nipple 17 or the center of circle Central Symmetry about linkage 1.Make the tie point of linkage 1 and pressure sensor about the axis for axis symmetry about linkage 1 or the center of circle Central Symmetry about linkage 1 like this, ensure that linkage 1 balances with the connection of pressure sensor.
Embodiment two
The difference of the present embodiment and embodiment one is, please refer to Fig. 3, the number of passage 13 is 3, from the angle of overlooking, each passage 13 is distributed between two bolts 14, all passages 13 about the center of circle Central Symmetry of linkage 1, this linkage 1 by passage 13 and bolt 14 distribution straggly, because certain bolt 14 and passage 13 are arranged in the phenomenon that stress that same cross section makes this cross section of linkage 1 produced in static load test be subject to concentrates before avoiding.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention, shape as circular groove can be able to change for the number of straight tube shape circular groove, bolt 14, the number of passage 13 can change, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (11)
1. the device for erect static load lotus Model Pile and pressure sensor in junction chamber, it is characterized in that, the end face of described device near Model Pile one end has the circular groove with Model Pile top contact, described circular groove side having at least one is positioned at radial upper and through described device side and the passage communicated with the external world, and the electric wire in described Model Pile directly enters the gap in described circular groove from described Model Pile near one end of described device and extends to the external world by described passage.
2. as claimed in claim 1 for the device of erect static load lotus Model Pile and pressure sensor in junction chamber, it is characterized in that, described circular groove diameter is less than the diameter at described Model Pile top, and the electric wire in described Model Pile stretches out with described circular groove corresponding position and enters described circular groove and extend to the external world through described passage from the end face of described Model Pile.
3. as claimed in claim 1 for the device of erect static load lotus Model Pile and pressure sensor in junction chamber, it is characterized in that, described circular groove diameter is greater than the diameter at described Model Pile top, described circular groove is inserted in described Model Pile top and described Model Pile is connected with described device, and the electric wire in described Model Pile stretches out from the side that described Model Pile top is relative with described circular groove side and enters described circular groove and extend to the external world through described passage.
4. as claimed in claim 1 for the device of erect static load lotus Model Pile and pressure sensor in junction chamber, it is characterized in that, described circular groove is notch cuttype circular groove, near described Model Pile one end and the circular groove being enclosed within the top of described Model Pile is the first circular groove in described circular groove, circular groove near described pressure sensor one end in described circular groove is the second circular groove, the diameter of described second circular groove is less than the diameter of described Model Pile one end in described first circular groove, described passage communicates with the side of described second circular groove, electric wire in described Model Pile stretches out from the second circular groove corresponding position described in described Model Pile end face and enters described second circular groove and described passage successively.
5. the device for erect static load lotus Model Pile and pressure sensor in junction chamber as described in claim 3 or 4, it is characterized in that, described circular groove has connection clamping device, and the Model Pile of being inserted in described circular groove is fixed in described circular groove.
6. as claimed in claim 5 for the device of erect static load lotus Model Pile and pressure sensor in junction chamber, it is characterized in that, described connection clamping device comprises at least two and penetrates from described device side the bolt that described circular groove side arrives the described Model Pile side in described circular groove, and the active force of the described Model Pile side that described bolt gives in described circular groove balances mutually.
7. as claimed in claim 6 for the device of erect static load lotus Model Pile and pressure sensor in junction chamber, it is characterized in that there are between the described Model Pile side in described stud base and described circular groove the clamping plate that area is greater than described bolt floor space.
8., as claimed in claim 7 for the device of erect static load lotus Model Pile and pressure sensor in junction chamber, it is characterized in that there is between described clamping plate and described Model Pile side the rubber pad that area is greater than or equal to described clamping plate.
9. as claimed in claim 1 for the device of erect static load lotus Model Pile and pressure sensor in junction chamber, it is characterized in that, described device and the surface of described pressure sensor contacts have at least one nipple for being threaded with described pressure sensor.
10. as the device for erect static load lotus Model Pile and pressure sensor in junction chamber in claim 1 ~ 9 as described in any one, it is characterized in that, described device is cylindrical, the axis of described circular groove and the dead in line of described device.
11. as claimed in claim 10 for the device of erect static load lotus Model Pile and pressure sensor in junction chamber, and it is characterized in that, all described passages are about the axis for axis symmetry of described circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532762.0A CN105133671B (en) | 2015-08-26 | 2015-08-26 | Device for connecting indoor vertical static load model pile with pressure sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532762.0A CN105133671B (en) | 2015-08-26 | 2015-08-26 | Device for connecting indoor vertical static load model pile with pressure sensor |
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| Publication Number | Publication Date |
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| CN105133671A true CN105133671A (en) | 2015-12-09 |
| CN105133671B CN105133671B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510532762.0A Active CN105133671B (en) | 2015-08-26 | 2015-08-26 | Device for connecting indoor vertical static load model pile with pressure sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063631A (en) * | 2017-05-19 | 2017-08-18 | 大连理工大学 | The measurement apparatus of cylinder institute water resistance in a kind of water |
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| DE102006006242B4 (en) * | 2006-02-09 | 2008-01-03 | GeTec -Ingenieurgesellschaft für Informations-und Planungstechnologie m.b.H. | Method and device for carrying out stress tests of piles or columns located in the ground |
| CN101565954A (en) * | 2009-05-14 | 2009-10-28 | 应义淼 | Loading method of pile foundation vertical static load test |
| KR101072721B1 (en) * | 2008-09-12 | 2011-10-11 | 김형남 | Apparatus for pile load test |
| CN102277884A (en) * | 2011-05-17 | 2011-12-14 | 浙江大学城市学院 | Device for treating pile head for vertical static load test and construction method thereof |
| CN102943493A (en) * | 2012-12-04 | 2013-02-27 | 上海交通大学 | Method for measuring internal force and deformation of precast pile |
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2015
- 2015-08-26 CN CN201510532762.0A patent/CN105133671B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2465171Y (en) * | 2000-11-30 | 2001-12-12 | 武汉南方岩土工程新技术开发公司 | Datum beam free vertical settlement remote measurer |
| DE102006006242B4 (en) * | 2006-02-09 | 2008-01-03 | GeTec -Ingenieurgesellschaft für Informations-und Planungstechnologie m.b.H. | Method and device for carrying out stress tests of piles or columns located in the ground |
| KR101072721B1 (en) * | 2008-09-12 | 2011-10-11 | 김형남 | Apparatus for pile load test |
| CN101565954A (en) * | 2009-05-14 | 2009-10-28 | 应义淼 | Loading method of pile foundation vertical static load test |
| CN102277884A (en) * | 2011-05-17 | 2011-12-14 | 浙江大学城市学院 | Device for treating pile head for vertical static load test and construction method thereof |
| CN102943493A (en) * | 2012-12-04 | 2013-02-27 | 上海交通大学 | Method for measuring internal force and deformation of precast pile |
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| CN107063631A (en) * | 2017-05-19 | 2017-08-18 | 大连理工大学 | The measurement apparatus of cylinder institute water resistance in a kind of water |
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| CN105133671B (en) | 2017-03-22 |
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