CN103850237B - A kind of angle of throat cut-in type weak soil multiple position extensometer anchor head - Google Patents

A kind of angle of throat cut-in type weak soil multiple position extensometer anchor head Download PDF

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Publication number
CN103850237B
CN103850237B CN201210509449.1A CN201210509449A CN103850237B CN 103850237 B CN103850237 B CN 103850237B CN 201210509449 A CN201210509449 A CN 201210509449A CN 103850237 B CN103850237 B CN 103850237B
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CN
China
Prior art keywords
throat
rod
angle
central shaft
underframe
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CN201210509449.1A
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Chinese (zh)
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CN103850237A (en
Inventor
王建秀
刘笑天
姜韵骅
郭清锋
邹宝平
胡健
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同济大学
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Priority to CN201210509449.1A priority Critical patent/CN103850237B/en
Publication of CN103850237A publication Critical patent/CN103850237A/en
Application granted granted Critical
Publication of CN103850237B publication Critical patent/CN103850237B/en

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Abstract

The present invention relates to a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head, this anchor head comprises central shaft rod, outer bar, upper frame, underframe, bourdon tube, power transmission rod member and anchoring angle of throat, the top of central shaft rod is arranged with outer bar, the bottom of outer bar connects upper frame, the bottom of central shaft rod connects underframe, bourdon tube is set in the bottom of central shaft rod, and the upper end of bourdon tube is connected with upper frame, the lower end of bourdon tube is connected with underframe, the side of power transmission rod member respectively with upper frame and underframe hinged, opposite side and the anchoring angle of throat of power transmission rod member are hinged, central shaft rod offers one section of helicitic texture, the inner side of upper frame offers nut structure, rotating middle shaft bar, bourdon tube shrinks, and drives bullet on underframe, thus drives power transmission rod member to be stretched out by anchoring angle of throat, and anchoring angle of throat is cut in the test section borehole wall soil body.Compared with prior art, the present invention can be used for measuring soft clay area Different Strata settling amount, for base pit engineering and underground construction provide stratum settlement monitored data.

Description

A kind of angle of throat cut-in type weak soil multiple position extensometer anchor head
Technical field
The invention belongs to rock and soil engineering detection technical field, especially relate to a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head.
Background technology
For grasping settlement of foundation in the phase of exploration of Soft Deep Foundation Pit engineering and underground construction and construction and excavation process, needing that multiple position extensometer is set in boring and monitoring.At present existing Multi-point displacement metre for drilling hole measuring point fastening devices mainly contains slip casting type, spring-piece type, hydraulic pressure support formula and falls wedge-type etc. several, but due to larger to borehole wall soil disturbance during its applying anchored force, destroy the soil structures that soft clay area is originally weak, be therefore often difficult to record desirable stratum settling data.In addition because the deadweight of existing multiple position extensometer anchor head is comparatively large, therefore in soft clay area often because Gravitative Loads can have an impact to measurement result.
Summary of the invention
Object of the present invention is exactly provide a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head that can be used for measuring soft clay area stratum settlement amount to overcome defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A kind of angle of throat cut-in type weak soil multiple position extensometer anchor head, this anchor head comprises central shaft rod, outer bar, upper frame, underframe, bourdon tube, power transmission rod member and anchoring angle of throat, the top of described central shaft rod is arranged with outer bar, the bottom of outer bar connects upper frame, the bottom of described central shaft rod connects underframe, described bourdon tube is set in the bottom of central shaft rod, and the upper end of bourdon tube is connected with upper frame, the lower end of bourdon tube is connected with underframe, the side of described power transmission rod member respectively with upper frame and underframe hinged, opposite side and the anchoring angle of throat of power transmission rod member are hinged, described central shaft rod offers one section of helicitic texture, the inner side of described upper frame offers nut structure,
When measuring beginning, be fastenedly connected by helicitic texture and nut structure between central shaft rod and upper frame, bourdon tube is in extended state, rotating middle shaft bar, when helicitic texture departs from nut structure, bourdon tube shrinks, drive bullet on underframe, thus drive the rotation of power transmission rod member to be stretched out by anchoring angle of throat, anchoring angle of throat is made to cut in the test section borehole wall soil body, in order to increase anchored force when anchoring angle of throat is in open time bourdon tube be still in micro-extended state, after measurement, central shaft rod is pressed downward to and rotate and helicitic texture is connected with nut structure device can be closed.
Described power transmission rod member comprises the first rigid rod, second rigid rod and elastic rod, one end and the upper frame of the first described rigid rod are hinged, the middle and lower part of the other end and anchoring angle of throat is hinged, for it provides primary force, one end and the underframe of the second described rigid rod are hinged, the middle part of the other end and the first rigid rod is hinged, for the first rigid rod provides additional support power, one end of described elastic rod and the middle part of the second rigid rod hinged, the bottom-hinged of the other end and anchoring angle of throat, for anchoring angle of throat provides stretching revolving force, anchoring angle of throat is transferred to level by plumbness.When anchor head closes in the raw, when anchor head opens, elastic rod is in elasticity tensile state to described elastic rod.
Described bourdon tube is made up of the sleeve pipe of outside and the spring of inside, and spring housing is located in central shaft rod, and the upper end of sleeve pipe and spring is all connected with upper frame, and the lower end of sleeve pipe and spring is all connected with underframe.
Described spring is still in micro-extended state when device opens.
Described sleeve pipe is be socketed by 5 pipes the Pyatyi sleeve pipe formed.
The bottom connection of rotating axle of described central shaft rod, described underframe is established on the rotating shaft.
The head of described anchoring angle of throat is the blade-shaped structure with bladed structure.
Described power transmission rod member and anchoring angle of throat are equipped with three groups, and three groups of power transmission rod members and anchoring angle of throat are evenly arranged on central shaft rod is circumferential.
Described central shaft rod, upper frame, underframe, bourdon tube, power transmission rod member and anchoring angle of throat are made by chromium plating stainless steel.
Described upper frame, underframe, power transmission rod member are hollow structure.
Described central shaft rod, bourdon tube, power transmission rod member form anchored force application system of the present invention, by rotation central axis bar retracting spring, spring contraction provides driving force for power transmission rod member, under driving force effect, power transmission rod member rotates the anchoring angle of throat incision borehole wall soil body, for Soft Deep Foundation Pit engineering, underground construction phase of exploration and construction and excavation process provide sedimentation to detect data.
Compared with prior art, the present invention has the following advantages:
1, adopt angle of throat cut-in manner to carry out anchoring to reduce soil disturbance, be suitable for soft clay area;
2, anchor head structure is simple, easy for installation;
3, apparatus structure is comparatively light, reduces because deadweight is on measuring the impact produced;
4, device is recyclable after using.
Accompanying drawing explanation
Fig. 1 is that angle of throat cut-in type multiple position extensometer anchor head of the present invention opens schematic diagram;
Fig. 2 is that angle of throat cut-in type multiple position extensometer anchor head of the present invention closes schematic diagram;
Fig. 3 is the connection diagram of central shaft rod helicitic texture and upper frame nut structure;
Fig. 4 is the structural representation of bourdon tube when anchor head closes;
Fig. 5 is the structural representation of bourdon tube when anchor head opens.
In figure, 1 is central shaft rod, and 11 is helicitic texture, and 2 is outer bar, and 31 is upper frame, 32 is underframe, and 33 is nut structure, and 4 is turning cylinder, and 5 is bourdon tube, and 51 is sleeve pipe, 52 is spring, and 6 is the first rigid rod, and 7 is the second rigid rod, and 8 is elastic rod, and 9 is anchoring angle of throat.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of angle of throat cut-in type weak soil multiple position extensometer anchor head, structure as shown in Figures 1 and 2, this anchor head comprises central shaft rod 1, outer bar 2, upper frame 31, underframe 32, bourdon tube 5, power transmission rod member and anchoring angle of throat 9, the top of central shaft rod 1 is arranged with outer bar 2, the bottom of outer bar 2 connects upper frame 31, the bottom connection of rotating axle 4 of central shaft rod 1, underframe 32 is located on turning cylinder 4, bourdon tube 5 is set in the bottom of central shaft rod 1, and the upper end of bourdon tube 5 is connected with upper frame 31, the lower end of bourdon tube 5 is connected with underframe 32, power transmission rod member comprises the first rigid rod 6, second rigid rod 7 and elastic rod 8, one end and the upper frame 31 of the first rigid rod 6 are hinged, the middle and lower part of the other end and anchoring angle of throat 9 is hinged, for anchoring angle of throat 9 provides primary force, one end and the underframe 32 of the second rigid rod 7 are hinged, the other end is with hinged with the middle part of the first rigid rod 6, for the first rigid rod 6 provides additional support power, one end of elastic rod 8 and the middle part of the second rigid rod 7 hinged, the bottom-hinged of the other end and anchoring angle of throat 9, for anchoring angle of throat 9 provides stretching revolving force, transfers anchoring angle of throat 9 to level by plumbness.When anchor head closes in the raw, when anchor head opens, elastic rod 8 is in elasticity tensile state to elastic rod 8, and the head of anchoring angle of throat 9 is the blade-shaped structure with bladed structure.Power transmission rod member and anchoring angle of throat 9 are equipped with three groups, and three groups of power transmission rod members and anchoring angle of throat 9 are evenly arranged on central shaft rod 1 is circumferential.
Central shaft rod 1 offers one section of helicitic texture 11, the inner side of upper frame 31 offers nut structure 33, as shown in Figure 3.
Bourdon tube 5 is made up of the sleeve pipe 51 of outside and the spring 52 of inside, and as shown in Figure 4, Figure 5, spring 52 is set in central shaft rod 1, and the upper end of sleeve pipe 51 and spring 52 is all connected with upper frame 31, and the lower end of sleeve pipe 51 and spring 52 is all connected with underframe 32.Wherein, sleeve pipe 51 is be socketed by 5 pipes the Pyatyi sleeve pipe formed.
The structure of bourdon tube 5 when anchor head structure closes as shown in Figure 4, the helicitic texture 11 of central shaft rod 1 is connected with the nut structure 33 of upper frame 31 bourdon tube 5 that locks, make it be in extended state, sleeve pipe 51 and spring 52 two ends are welded with upper frame 31, underframe 32 and are in extended state.The structure of bourdon tube 5 when anchor head structure is opened as shown in Figure 5, the helicitic texture 11 of central shaft rod 1 departs from retracting spring pipe 5 with the nut structure 33 of upper frame 31, spring 52 shrinks and drives bullet on underframe 32 under the effect of elastic force, sleeve pipe 51 shrinks step by step under spring 52 resilient force, is still in micro-extended state for increasing anchored force spring 52.
Central shaft rod 1, upper frame 31, underframe 32, bourdon tube 5, power transmission rod member and anchoring angle of throat 9 are made by chromium plating stainless steel.And upper frame 31, underframe 32, power transmission rod member are hollow structure.When measuring beginning, be fastenedly connected by helicitic texture 11 and nut structure 33 between central shaft rod 1 and upper frame 31, bourdon tube 5 is in extended state, rotating middle shaft bar 1, when helicitic texture 11 departs from nut structure 33, bourdon tube 5 shrinks, drive bullet on underframe 32, thus drive power transmission rod member to be stretched out by anchoring angle of throat 9, anchoring angle of throat 9 is made to cut in the test section borehole wall soil body, in order to increase anchored force when anchoring angle of throat 9 is in open time bourdon tube 5 be still in micro-extended state, central shaft rod 1 being pressed downward to and rotate after measurement makes helicitic texture 11 be connected device can be closed with nut structure 33.
Central shaft rod 1, bourdon tube 5, power transmission rod member form anchored force application system of the present invention, by rotation central axis bar 1 retracting spring 52, spring 52 is punctured into power transmission rod member and provides driving force, under driving force effect, power transmission rod member rotates and anchoring angle of throat 9 is cut the borehole wall soil body, for Soft Deep Foundation Pit engineering, underground construction phase of exploration and construction and excavation process provide sedimentation to detect data.

Claims (9)

1. an angle of throat cut-in type weak soil multiple position extensometer anchor head, it is characterized in that, this anchor head comprises central shaft rod, outer bar, upper frame, underframe, bourdon tube, power transmission rod member and anchoring angle of throat, the top of described central shaft rod is arranged with outer bar, the bottom of outer bar connects upper frame, the bottom of described central shaft rod connects underframe, described bourdon tube is set in the bottom of central shaft rod, and the upper end of bourdon tube is connected with upper frame, the lower end of bourdon tube is connected with underframe, the side of described power transmission rod member respectively with upper frame and underframe hinged, opposite side and the anchoring angle of throat of power transmission rod member are hinged, described central shaft rod offers one section of helicitic texture, the inner side of described upper frame offers nut structure,
Described power transmission rod member comprises the first rigid rod, the second rigid rod and elastic rod, one end and the upper frame of the first described rigid rod are hinged, the middle and lower part of the other end and anchoring angle of throat is hinged, one end and the underframe of the second described rigid rod are hinged, the other end is with hinged with the middle part of the first rigid rod, one end of described elastic rod and the middle part of the second rigid rod hinged, the bottom-hinged of the other end and anchoring angle of throat;
When measuring beginning, be fastenedly connected by helicitic texture and nut structure between central shaft rod and upper frame, bourdon tube is in extended state, rotating middle shaft bar, when helicitic texture departs from nut structure, bourdon tube shrinks, drive bullet on underframe, thus drive power transmission rod member to rotate anchoring angle of throat to be stretched out, anchoring angle of throat is cut in the test section borehole wall soil body, after measurement, central shaft rod is pressed downward to and rotate and helicitic texture is connected with nut structure device can be closed.
2. a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head according to claim 1, it is characterized in that, described bourdon tube is made up of the sleeve pipe of outside and the spring of inside, spring housing is located in central shaft rod, the upper end of sleeve pipe and spring is all connected with upper frame, and the lower end of sleeve pipe and spring is all connected with underframe.
3. a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head according to claim 2, it is characterized in that, described spring is still in micro-extended state when device opens.
4. a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head according to claim 2, is characterized in that, described sleeve pipe is be socketed by 5 pipes the Pyatyi sleeve pipe formed.
5. a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head according to claim 1, it is characterized in that, the bottom connection of rotating axle of described central shaft rod, described underframe is established on the rotating shaft.
6. a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head according to claim 1, it is characterized in that, the head of described anchoring angle of throat is the blade-shaped structure with bladed structure.
7. a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head according to claim 1, it is characterized in that, described power transmission rod member and anchoring angle of throat are equipped with three groups, and three groups of power transmission rod members and anchoring angle of throat are evenly arranged on central shaft rod is circumferential.
8. a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head according to claim 1, it is characterized in that, described central shaft rod, upper frame, underframe, bourdon tube, power transmission rod member and anchoring angle of throat are made by chromium plating stainless steel.
9. a kind of angle of throat cut-in type weak soil multiple position extensometer anchor head according to claim 1, it is characterized in that, described upper frame, underframe, power transmission rod member are hollow structure.
CN201210509449.1A 2012-12-03 2012-12-03 A kind of angle of throat cut-in type weak soil multiple position extensometer anchor head CN103850237B (en)

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Application Number Priority Date Filing Date Title
CN201210509449.1A CN103850237B (en) 2012-12-03 2012-12-03 A kind of angle of throat cut-in type weak soil multiple position extensometer anchor head

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CN103850237B true CN103850237B (en) 2016-02-17

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CN104532815B (en) * 2014-11-27 2016-08-24 同济大学 A kind of telescopic boom multipoint displacement meter anchor head for soft soil layer
CN104499511B (en) * 2014-11-27 2016-04-20 同济大学 The arm-type multiple position extensometer anchor head of a kind of spring for soft soil layer
CN104612124B (en) * 2014-11-27 2016-08-24 同济大学 A kind of vane type multipoint displacement meter anchor head
CN104499474B (en) * 2014-11-27 2016-08-17 同济大学 A kind of folding blade-type multipoint displacement meter anchor head
CN104775413B (en) * 2015-03-25 2016-06-08 浙江科技学院 A kind of umbrella shape staged multipoint displacement meter anchor head for weak soil compound stratum
CN104863108B (en) * 2015-03-31 2016-08-24 河海大学 A kind of ground-connecting-wall soil lateral pressure box embedded device
CN104990640B (en) * 2015-05-06 2017-07-14 中国科学院寒区旱区环境与工程研究所 The device that drill hole inner wall soil temperature is quickly determined
CN108413928B (en) * 2015-08-21 2020-07-28 中交天津港湾工程研究院有限公司 Soil body layering settlement monitoring system
CN107227733A (en) * 2017-06-29 2017-10-03 中国冶集团有限公司 A kind of bored concrete pile steel reinforcement cage cutting method under water

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CN1963375A (en) * 2006-11-29 2007-05-16 四川大学 Sleeve bore multidot tensiometer
CN201031391Y (en) * 2007-05-11 2008-03-05 南京工业大学 Umbrella-shape weigh anchor
CN201110753Y (en) * 2007-08-09 2008-09-03 中国科学院武汉岩土力学研究所 Large range mechanical type multi-point displacement gage

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JP2001208622A (en) * 2000-01-28 2001-08-03 Masayuki Kosugi Displacement measuring instrument

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1963375A (en) * 2006-11-29 2007-05-16 四川大学 Sleeve bore multidot tensiometer
CN201031391Y (en) * 2007-05-11 2008-03-05 南京工业大学 Umbrella-shape weigh anchor
CN201110753Y (en) * 2007-08-09 2008-09-03 中国科学院武汉岩土力学研究所 Large range mechanical type multi-point displacement gage

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