CN208183771U - A kind of side slope shaking table model stream line prestress application device - Google Patents

A kind of side slope shaking table model stream line prestress application device Download PDF

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Publication number
CN208183771U
CN208183771U CN201820683763.4U CN201820683763U CN208183771U CN 208183771 U CN208183771 U CN 208183771U CN 201820683763 U CN201820683763 U CN 201820683763U CN 208183771 U CN208183771 U CN 208183771U
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CN
China
Prior art keywords
anchor cable
side slope
model
anchor
cable
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Expired - Fee Related
Application number
CN201820683763.4U
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Chinese (zh)
Inventor
范刚
周家文
张建经
付晓
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Sichuan University
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Sichuan University
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Priority to CN201820683763.4U priority Critical patent/CN208183771U/en
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Publication of CN208183771U publication Critical patent/CN208183771U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of side slope shaking table model stream line prestress application device, including side slope model, anchor cable, axial force sensor, disrance sleeve, screw rod, nut, outer anchor head and with the slope surface lattice girder of side slope Model Matching;The side that the anchor cable gos deep into the side slope model is anchorage cable anchoring section, the anchorage cable anchoring section is fixed in side slope model, the other side of anchor cable is free section of anchor cable, the free section of anchor cable is equipped with the axial force sensor, the disrance sleeve is also arranged on the free section of anchor cable, free section of anchor cable is equipped with the screw rod far from one end of anchorage cable anchoring section, which is threadedly coupled after sequentially passing through the slope surface lattice girder and outer anchor head with the nut.The present apparatus has the characteristics that easy to operate, technically reliable, can effectively overcome the shortcomings of accurately apply prestressd anchor cable because test model is too small.

Description

A kind of side slope shaking table model stream line prestress application device
Technical field
The utility model relates to geotechnical engineering side slope modeling techniques field, especially a kind of side slope shake table model examination Test stream line prestress application device.
Background technique
Geotechnical engineering field side slope shaking table model is a kind of research that most can directly disclose Rock And Soil seismic response Method has been widely deployed in geotechnical engineering aseismic analysis and research.Prestress anchorage cable is imitated because of its good slope reinforcement Fruit is applied to geotechnical engineering slope reinforcement in large quantities.
Prestress anchorage cable Aseismic Design is based on Quintic system method more in the existing specification in China, i.e., is reduced to geological process power In in side slope and structure, this method fails to fully consider the dynamic characteristic of geological process power some Static behavior, therefore, benefit Carrying out research with seismic stability of the shake table to prestressed anchor reinforcement side slope has biggish scientific value and engineering practice Meaning.However, used test model size is smaller, so that test model since shaketalle test is physical experiments In accurately to apply prestressd anchor cable very difficult, and accurately by target prestress application in anchor cable to entire shake table mould The reliability of type test result is most important.
Utility model content
To solve problems of the prior art, the purpose of the utility model is to provide a kind of examinations of side slope shake table model Stream line prestress application device is tested, the present apparatus has the characteristics that easy to operate, technically reliable, can effectively overcome because of test model Deficiency too small that prestressd anchor cable accurately applies.
Anchor in a kind of side slope shaking table model that in order to achieve the above purposes, the technical solution adopted by the utility model is: Rope prestress application device, including side slope model, anchor cable, axial force sensor, disrance sleeve, screw rod, nut, outer anchor head and with The slope surface lattice girder of side slope Model Matching;The side that the anchor cable gos deep into the side slope model is anchorage cable anchoring section, the anchor cable Anchoring section is fixed in side slope model, and the other side of anchor cable is free section of anchor cable, and the free section of anchor cable is equipped with the axis Force snesor is also arranged with the disrance sleeve on the free section of anchor cable, and free section of anchor cable is set far from one end of anchorage cable anchoring section There is the screw rod, which is threadedly coupled after sequentially passing through the slope surface lattice girder and outer anchor head with the nut.
Axial force sensor is installed on free section of anchor cable, the end connection of screw rod and free section of anchor cable, disrance sleeve dress Outside the free section of anchor cable, outer anchor head is contacted with the slope surface lattice girder of side slope model, and screw rod sequentially passes through slope surface lattice girder and outside It is connect after anchor head with nut, it, only need to can be by prestress application in anchor cable by rotary nut when applying prestressing force to anchor cable Gu in section, and passing through the prestressing force in axial force sensor real-time monitoring anchorage cable anchoring section.
Preferably, in order to guarantee to apply prestressed precision to anchor cable, the screw rod and the free section of anchor cable are concentric Setting.
Preferably, the peripheral of the free section of anchor cable has gap between the inner wall of the disrance sleeve, makes separation sleeve Guan Buyu free section of anchor cable contact, to prevent disrance sleeve from influencing the accuracy of axial force sensor test result.
The beneficial effects of the utility model are: the utility model due to during prestressd anchor cable applies by high-precision Axial force sensor the prestressing force of application is controlled, therefore, the utility model can accurately control the application of prestressd anchor cable Precision;And the prestress application precision is high, and during actual tests, prestressing force precision is up to 0.001N;In addition, this is practical Novel simple and easy, control precision height, technical costs are low, are conducive to be widely popularized in geotechnical engineering model test, can be significant Solve the problems, such as that existing model test stream line axle power can not accurately apply.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment;
Appended drawing reference: 1, side slope model, 2, anchor cable, 21, anchorage cable anchoring section, 22, free section of anchor cable, 3, axial force sensor, 4, disrance sleeve, 5, screw rod, 6, nut, 7, outer anchor head, 8, slope surface lattice girder.
Specific embodiment
The embodiments of the present invention are described in detail with reference to the accompanying drawing.
Embodiment
In a wherein implementation column, as shown in Figure 1, a kind of side slope shaking table model stream line prestress application fills Set, including side slope model 1, further include anchor cable 2, axial force sensor 3, disrance sleeve 4, screw rod 5, nut 6, outer anchor head 7 and with The matched slope surface lattice girder 8 of side slope model 1;The side that the anchor cable 2 gos deep into the side slope model 1 is anchorage cable anchoring section 21, institute It states anchorage cable anchoring section 21 to be fixed in side slope model 1, the other side of anchor cable 2 is free section of anchor cable 22, the free section of anchor cable 22 are equipped with the axial force sensor 3, and the disrance sleeve 4 is also arranged on the free section of anchor cable 22, and free section of anchor cable 22 is remote One end from anchorage cable anchoring section 21 is equipped with the screw rod 5, the screw rod 5 sequentially pass through after the slope surface lattice girder 8 and outer anchor head 7 with The nut 6 is threadedly coupled.
Axial force sensor 3 is installed on anchor cable free segment 22, screw rod 5 is connect with the end of free section of anchor cable, isolation Casing 4 is contacted loaded on 22 outside of anchor cable free segment, outer anchor head 7 with the slope surface lattice girder 8 of side slope model 1, and screw rod 5 sequentially passes through It connect after slope surface lattice girder 8 and outer anchor head 7 with nut 6, when applying prestressing force to anchor cable 2, need to can only be incited somebody to action by rotary nut 6 Prestress application passes through the prestressing force in 3 real-time monitoring anchorage cable anchoring section 21 of axial force sensor in anchorage cable anchoring section 21.
In another embodiment, in order to guarantee to apply anchor cable 2 prestressed precision, the screw rod 5 and the anchor The concentric setting of rope anchor free segment 22.
In another embodiment, the anchor cable free segment 22 is peripheral between the inner wall of the disrance sleeve 4 With gap, contact disrance sleeve 4 with free section of anchor cable 22, to prevent disrance sleeve 4 from influencing the test knot of axial force sensor 3 The accuracy of fruit.
Specific step is as follows when implementing for the present embodiment, first anchor cable free segment 22 is truncated, and by axial force sensor 3 It is installed on anchor cable free segment 22;Secondly screw rod 5 is connect with the end of anchor cable free segment 22, guarantee screw rod 5 when connection The axis of axis and anchor cable free segment 22 overlap;Again by disrance sleeve 4 loaded on 22 outside of anchor cable free segment, and not It is contacted with anchor cable free segment 22, to prevent disrance sleeve 4 from influencing the accuracy of 3 test result of axial force sensor;It then will be outer Anchor head 7 is contacted with the slope surface lattice girder 8 of side slope model 1, screw rod 5 sequentially pass through after slope surface lattice girder 8 and outer anchor head 7 with nut 6 Connection;Finally, when needing to apply prestressing force, only needs rotary nut 6 to apply in anchorage cable anchoring section 21, answering in advance Power apply during by axial force sensor 3 can Real-time Monitoring Data control the prestressing force that is applied in anchorage cable anchoring section 21.
Specific embodiment of the present utility model above described embodiment only expresses, the description thereof is more specific and detailed, But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the protection scope of the utility model.

Claims (3)

1. a kind of side slope shaking table model stream line prestress application device, including side slope model, which is characterized in that also wrap Include anchor cable, axial force sensor, disrance sleeve, screw rod, nut, outer anchor head and the slope surface lattice girder with side slope Model Matching;Institute Stating anchor cable to go deep into the side of the side slope model is anchorage cable anchoring section, and the anchorage cable anchoring section is fixed in side slope model, anchor The other side of rope is free section of anchor cable, and the free section of anchor cable is equipped with the axial force sensor, also covers on the free section of anchor cable Equipped with the disrance sleeve, free section of anchor cable is equipped with the screw rod far from one end of anchorage cable anchoring section, which sequentially passes through institute It is threadedly coupled after stating slope surface lattice girder and outer anchor head with the nut.
2. side slope shaking table model stream line prestress application device according to claim 1, which is characterized in that institute State screw rod and the concentric setting of the free section of anchor cable.
3. side slope shaking table model stream line prestress application device according to claim 1, which is characterized in that institute State the peripheral of free section of anchor cable has gap between the inner wall of the disrance sleeve.
CN201820683763.4U 2018-05-08 2018-05-08 A kind of side slope shaking table model stream line prestress application device Expired - Fee Related CN208183771U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820683763.4U CN208183771U (en) 2018-05-08 2018-05-08 A kind of side slope shaking table model stream line prestress application device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820683763.4U CN208183771U (en) 2018-05-08 2018-05-08 A kind of side slope shaking table model stream line prestress application device

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CN208183771U true CN208183771U (en) 2018-12-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109440840A (en) * 2018-12-13 2019-03-08 中国地质大学(武汉) A kind of friction pile suitable for side slope model test-anchor cable attachment device
CN113338313A (en) * 2021-06-11 2021-09-03 华能澜沧江水电股份有限公司 Intelligent prestressed anchor cable tensioning system and method
CN115508207A (en) * 2022-10-13 2022-12-23 四川大学 Slope model test loading device and measuring method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109440840A (en) * 2018-12-13 2019-03-08 中国地质大学(武汉) A kind of friction pile suitable for side slope model test-anchor cable attachment device
CN113338313A (en) * 2021-06-11 2021-09-03 华能澜沧江水电股份有限公司 Intelligent prestressed anchor cable tensioning system and method
CN115508207A (en) * 2022-10-13 2022-12-23 四川大学 Slope model test loading device and measuring method thereof

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181204

Termination date: 20210508

CF01 Termination of patent right due to non-payment of annual fee