CN103558088B - Earthen ruins anchoring shop experiment system - Google Patents

Earthen ruins anchoring shop experiment system Download PDF

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Publication number
CN103558088B
CN103558088B CN201310541311.4A CN201310541311A CN103558088B CN 103558088 B CN103558088 B CN 103558088B CN 201310541311 A CN201310541311 A CN 201310541311A CN 103558088 B CN103558088 B CN 103558088B
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China
Prior art keywords
anchor
earthen ruins
anchor pole
slurry
rammed earth
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Expired - Fee Related
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CN201310541311.4A
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CN103558088A (en
Inventor
张景科
谌文武
和法国
陈鹏飞
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Lanzhou University
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Lanzhou University
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Abstract

The present invention relates to the anchorage technology field that in historical relic's protection, earthen ruins is reinforced, be specifically related to a kind of earthen ruins anchoring shop experiment system.Test unit is primarily of anchor system, the charger that is connected with anchor system, and the data acquisition system (DAS) be connected with anchor system and charger and disposal system.This device can be used for the systematic study of stress distribution situation in earthen ruins; the factors such as rock-bolt length, bolt diameter, body of rod surface state and grouting body intensity that simultaneously consider again, on the earthen ruins anchor system of the impact of anchor force, have great importance for the applied research of anchor rod anchored theory in earthen ruins protection.This pilot system can be used in the experimental study of total length binding type anchor pole and the behavior of corresponding anchoring mechanics of system and working mechanism in cultural relic protection project.

Description

Earthen ruins anchoring shop experiment system
Technical field
The present invention relates to the anchorage technology field that in historical relic's protection, earthen ruins is reinforced, be specifically related to a kind of earthen ruins anchoring shop experiment system.
Background technology
Anchorage technology is applied in slope retaining and Geotechnical Engineering usually, serves vital role to the safe construction of high slope rockmass and Rock Slide Stability.In recent years, anchor rod anchored technology was also applied to cultural relic protection project earthen ruins protection aspect gradually.The Ancient Times in China earthen ruins soil body is loose, intensity is low, porosity is large, and due to of the remote past, major part all produces serious cracking, finally causes fall damage.Anchor rod anchored technology is the important method in compacted soil ruins. effectively can improve the stability of earthen ruins.Earthen ruins is anchor rod anchored mainly refers to that ruins body is losing certain cohesive strength and local buckling, by anchor pole to the technical measures of the new attachment force of unstability body. body responsible anchor pole in ruins connects the resistance to overturning improving body.This technology convenience, brief introduction, good concealment, intensity improve comparatively obvious, are one of important technique measure of ruins main body protection engineering.
At present, anchorage technology is used widely in earthen ruins reinforcement protection, achieves many achievements.But the difference destroyed due to historical relic itself and engineering complicated condition changeable, and anchor pole is buried in the soil body, brings very large difficulty to the research of anchor pole mechanical behavior and anchor mechanism.Anchor rod drawing test is the main experimental method in this Study on Problems, is still widely adopted so far.In the past the anchor rod experiment of earthen ruins mostly concentrate in the research to anchor-holding force of anchor bolt, only consider that anchorage length and grouting body intensity are on the impact of anchor force.Data shows, and there is relation at the size of anchor force and rock-bolt length, bore diameter, bolt diameter, grouting body intensity, body of rod surface state and angle of inclination.Therefore a kind of systematic study that can be used for stress distribution situation in earthen ruins is developed; the factors such as rock-bolt length, bolt diameter, body of rod surface state and grouting body intensity that simultaneously consider again, on the earthen ruins anchor system of the impact of anchor force, have great importance for the applied research of anchor rod anchored theory in earthen ruins protection.
Summary of the invention
For above-mentioned existing problems, the object of the present invention is to provide a kind of earthen ruins anchoring shop experiment system being applicable to total length binding type anchor pole and the behavior of corresponding anchoring mechanics of system and working mechanism's experimental study.The present invention is achieved through the following technical solutions above-mentioned purpose.
The invention provides a kind of earthen ruins anchoring shop experiment system, the data Collection & Processing System comprising anchor system, the charger be connected with anchor system and be connected with anchor system and charger.
The present invention can also improve by the following technical programs further.
Preferably, described anchor system comprises pvc pipe, rammed earth layer, slurry and test anchor pole; Be filled with rammed earth layer in described pvc pipe, the center of rammed earth layer is marked with slurry, is connected between rammed earth layer and slurry by Anchor Agent, and the center of slurry arranges porose, is provided with test anchor pole in hole.
Preferably, the center line of described pvc pipe, rammed earth layer, slurry and test anchor pole is arranged in same plane.
Preferably, described charger comprises the sheath steel plate, oil pump, the hydraulic jack be connected with oil pump that are arranged at pvc pipe top and is arranged at the ground tackle testing anchor pole end.
Preferably, described ground tackle is type anchorage device.
Preferably, described data Collection & Processing System comprise be arranged at displacement measuring device that the strain gauge between hydraulic jack with ground tackle is connected with strain gauge and be connected with strain gauge and displacement measuring device digital display instrument, be attached to strain resistor wire that the foil gauge tested on anchor pole is connected with foil gauge, be arranged at the computing machine that sheath steel plate derives bearing, the data collecting instrument be connected with strain resistor wire with the wire between hydraulic jack and be connected with data collecting instrument.
Preferably, institute's displacement measurement device Magnetic gauge stand of comprising displacement support, detector for displacement measuring, displacement bearing and being connected with strain gauge.
Preferably, the center line of described pvc pipe, rammed earth layer, slurry, test anchor pole, sheath steel plate, hydraulic jack and ground tackle is positioned at same plane, and installs along the axis of test anchor pole.
Compared with prior art, beneficial effect of the present invention is as follows:
(1) on test anchor pole, adhere to foil gauge, and the strain resistor wire be connected with foil gauge is derived bearing by wire be connected on data collecting instrument, successfully solve the wire extraction problem of foil gauge.
(2) test in anchor rod drawing process, hydraulic jack to test bolt action anchor force and produce be displaced through strain gauge and displacement measuring device is reflected to reading in digital display instrument and record, the strain that test anchor pole produces is transferred in data collecting instrument by foil gauge simultaneously, and by the control of computing machine and analysis software, the load in anchor rod drawing process and strain are shown in real time, the situation of change of the mechanical property such as load and strain in whole process of the test clearly can be reflected by data processing.
(3) whole charger is all telescopic, can measure the anchoring property of the anchor pole of different-diameter very intuitively, thus can reflect the anchor rod anchored mechanical property change of different-diameter.
(4) test anchor pole is tightly clamped by intermediate plate by the end anchorage in charger, and is clearly reflected by the end displacement in anchor rod drawing process by displacement measuring device, efficiently solves the end displacement problem in process of the test.
(5) the tension load action that produced to hydraulic jack by the hydraulic action that oil pump produces of whole pilot system is on test anchor pole, easy and simple to handle, and loss of prestress is less.
Accompanying drawing explanation
Fig. 1 is the planar structure schematic diagram of an embodiment of the present invention.
Fig. 2 is the perspective view of an embodiment of the present invention.
1.PVC pipe in figure, 2. rammed earth layer, 3. slurry, 4. test anchor pole, 5. sheath steel plate, 6. hydraulic jack, 7. ground tackle, 8. strain gauge, 9. foil gauge, 10. strain resistor wire, bearing 12. Magnetic gauge stand derived by 11. wires, 13. displacement supports, 14. detector for displacement measuring, 15. displacement bearings, 16. data collecting instruments, 17. digital display instruments, 18. oil pumps, 19. computing machines.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further details.
Embodiment:
As shown in Figure 1 and Figure 2, this routine earthen ruins anchoring shop experiment system comprises anchor system, charger, data acquisition system (DAS) and disposal system.
Anchor system comprises cylindric pvc pipe 1, rammed earth layer 2, slurry 3 and test anchor pole 4 for making sample material.Described charger comprises the sheath steel plate 5, oil pump 18, the hydraulic jack 6 be connected with oil pump 18 that are arranged at pvc pipe 1 top and is arranged at the ground tackle 7 testing anchor pole 4 end, and described 7 ground tackles are type anchorage device.Described data Collection & Processing System comprises the strain gauge 8 be arranged between hydraulic jack 6 and ground tackle 7, the displacement measuring device be connected with strain gauge 8, the digital display instrument 17 be connected with displacement measuring device with strain gauge 8, be attached to the foil gauge 9 on test anchor pole 4, the strain resistor wire 10 be connected with foil gauge 9, bearing 11 derived by the wire be arranged between sheath steel plate 5 and hydraulic jack 6, the data collecting instrument 14 be connected with strain resistor wire 10 and the computing machine 19 be connected with data collecting instrument 14.
Fill with rammed earth layer 2 in pvc pipe 1, inject slurry 3 at the center of rammed earth layer 2, connect with Anchor Agent between rammed earth layer 2 and slurry 3, in the central punch of pvc pipe 1 after slurry 3 solidifies, test anchor pole 4 is inserted in the hole.Wherein, rammed earth layer 2 adopts the undisturbed soil sample hand compaction of earthen ruins; Slurry 3 material is test slurries according to a certain ratio; Test anchor pole 4 can select the earthen ruins reinforcing anchor pole such as Chinese wax bar, bamboo anchor pole, bamboo reinforcement Composite Bolt of different-diameter.Add sheath steel plate 5 on the top of pvc pipe 1, guarantee that the rammed earth layer 2 of test piece upper part is smooth; Sheath steel plate 5 adds wire and derives bearing 11, the strain resistor wire 10 be connected is drawn be connected with data collecting instrument 16 in test specimen with foil gauge 9; Derive hydraulic oil filling cylinder 6 on bearing 11 at wire again, the other end of hydraulic jack 6 is connected with strain gauge 8, adds type anchorage device 7 in the upper end of strain gauge 8, and ground tackle 7 and test anchor pole 4 is tightly bonded together with intermediate plate.The center line of pvc pipe 1, rammed earth layer 2, slurry 3, test anchor pole 4, sheath steel plate 5, hydraulic jack 6 and ground tackle 7 is positioned at same plane, and installs along the axis of test anchor pole 4.Strain gauge 8 is placed between hydraulic jack 6 and end anchorage 7, and keep with hydraulic jack 6 on same center line, two ends are close to hydraulic jack 6 and end anchorage 7.Displacement measuring device comprises Magnetic gauge stand 12, displacement support 13, detector for displacement measuring 14 and displacement bearing 15, and Magnetic gauge stand 12 and strain gauge 8 are close to, and detector for displacement measuring 14 keeps vertical with displacement bearing 15, guarantees the accurate of displacement readings.Detector for displacement measuring 14 is connected with digital display instrument 17 jointly with strain gauge, manually operating oil pump 18 makes hydraulic jack 6 apply pulling capacity to test anchor pole 4, the pulling capacity size produced by strain gauge 8 and detector for displacement measuring 14 and be displaced through digital display instrument 17 reading and record.Keep at a certain distance away in the anchored end of test anchor pole 4 and paste foil gauge 9, the strain resistor wire 10 be connected is derived bearing 11 by wire draw and be connected with data collecting instrument 16 with foil gauge 9.Data collecting instrument 16 connects computing machine 19, records the size of pulling capacity by the control analysis software control in computing machine, and the stress and strain amount to the real-time control and measuring anchor pole 4 of loading procedure.
The embodiment of the above is better embodiment of the present invention; not limit specific embodiment of the invention scope with this; scope of the present invention comprises and is not limited to this embodiment, and the equivalence change that all shapes according to the present invention, structure are done is all in protection scope of the present invention.

Claims (5)

1. an earthen ruins anchoring shop experiment system, is characterized in that: the data Collection & Processing System comprising anchor system, the charger be connected with anchor system and be connected with anchor system and charger;
Described anchor system comprises pvc pipe (1), rammed earth layer (2), slurry (3) and test anchor pole (4); Rammed earth layer (2) is filled with in described pvc pipe (1), the center of rammed earth layer (2) is marked with slurry (3), connected by Anchor Agent between rammed earth layer (2) and slurry (3), the center of slurry (3) arranges porose, is provided with test anchor pole (4) in hole;
Described charger comprises the sheath steel plate (5), oil pump (18), the hydraulic jack (6) be connected with oil pump (18) that are arranged at pvc pipe (1) top and is arranged at the ground tackle (7) testing anchor pole (4) end;
Described data Collection & Processing System comprises the strain gauge (8) be arranged between hydraulic jack (6) and ground tackle (7), the displacement measuring device be connected with strain gauge (8), the digital display instrument (17) be connected with displacement measuring device with strain gauge (8), be attached to the foil gauge (9) in test anchor pole (4), the strain resistor wire (10) be connected with foil gauge (9), bearing (11) derived by the wire be arranged between sheath steel plate (5) and hydraulic jack (6), the data collecting instrument (16) be connected with strain resistor wire (10) and the computing machine (19) be connected with data collecting instrument (16).
2. earthen ruins anchoring shop experiment system according to claim 1, is characterized in that: described pvc pipe (1), rammed earth layer (2), slurry (3) and test anchor pole (4) center line be arranged in same plane.
3. earthen ruins anchoring shop experiment system according to claim 1, is characterized in that: described ground tackle (7) is type anchorage device.
4. earthen ruins anchoring shop experiment system according to claim 1, is characterized in that: the Magnetic gauge stand (12) that institute's displacement measurement device comprises displacement support (13), detector for displacement measuring (14), displacement bearing (15) and is connected with strain gauge (8).
5. the earthen ruins anchoring shop experiment system according to any one of claims 1 to 3, it is characterized in that: the center line of described pvc pipe (1), rammed earth layer (2), slurry (3), test anchor pole (4), sheath steel plate (5), hydraulic jack (6) and ground tackle (7) is positioned at same plane, and install along the axis of test anchor pole (4).
CN201310541311.4A 2013-11-05 2013-11-05 Earthen ruins anchoring shop experiment system Expired - Fee Related CN103558088B (en)

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CN103969097B (en) * 2014-04-29 2016-09-28 湖南大学 A kind of sample producing device tested with Soil Interface friction performance for anchor or stake and method
CN106018102B (en) * 2016-07-29 2019-11-15 兰州大学 Building earthen ruins group's anchor pull-out test system
CN106644763B (en) * 2016-12-28 2020-06-16 兰州大学 Earthen site anchoring slurry-matrix interface mechanical property test device and method
CN107167385B (en) * 2017-06-20 2023-07-25 中国矿业大学(北京) Indoor test method for stress loss of anchor rod
CN107478812B (en) * 2017-07-10 2019-07-02 三峡大学 Rock And Soil large dosage expansion cement slurry expansion process visualization device and application method
CN110378013B (en) * 2019-07-16 2022-09-13 西安建筑科技大学 Anti-seismic reinforcement design method for phyllostachys pubescens anchor rods in urban wall site containing longitudinal crack rammed earth
CN112095596B (en) * 2020-11-03 2021-02-02 成都诺比侃科技有限公司 Intelligent monitoring and early warning system and method for slope prestressed anchor rod based on cloud platform
CN113026707B (en) * 2021-03-22 2022-04-01 浙江大学 Power penetration flat plate anchor test device for hypergravity centrifugal machine
CN114280234B (en) * 2021-12-08 2023-09-26 兰州大学 Device and method for quality control and effect evaluation test in earthen site anchoring and reinforcement process
CN115855801B (en) * 2022-11-02 2023-09-19 青岛理工大学 Anchor rod anti-pulling bearing capacity simulation test system and method

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