CN204924504U - Division testing arrangement is separated to deep crustal stress part - Google Patents

Division testing arrangement is separated to deep crustal stress part Download PDF

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Publication number
CN204924504U
CN204924504U CN201520306779.XU CN201520306779U CN204924504U CN 204924504 U CN204924504 U CN 204924504U CN 201520306779 U CN201520306779 U CN 201520306779U CN 204924504 U CN204924504 U CN 204924504U
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CN
China
Prior art keywords
oil cylinder
turnbarrel
testing
telescopic oil
wiper
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN201520306779.XU
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Chinese (zh)
Inventor
周辉
沈峥
张传庆
卢景景
张忠林
姜玥
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Wuhan Institute of Rock and Soil Mechanics of CAS
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Wuhan Institute of Rock and Soil Mechanics of CAS
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Priority to CN201520306779.XU priority Critical patent/CN204924504U/en
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Abstract

The utility model discloses a division testing arrangement is separated to deep crustal stress part, open under the effect of the connecting rod of downstream on the rubber layer in its tensioning sleeve to make testing arrangement fix on the pore wall, the rotatory sleeve of swing jar drive is rotatory, and corresponding drilling mechanism, wiper mechanism and accredited testing organization work in proper order, obtains the aperture that needs and changes data, and then calculate the stress on measurement station ground. The utility model has the characteristics of miniaturized, light -dutyization, intellectuality, systematized, equipment module ization practicality is stronger, and its is easy and simple to handle, can shorten measuring time, practices thrift and measures the cost, is applicable to the geostress survey of heavily stressed down other hole stress relief method.

Description

A kind of Deep ground stress local solution division proving installation
Technical field
The utility model relates to Geotechnical Engineering field, specifically refers to a kind of Deep ground stress local solution division proving installation.
Background technology
Along with the development of scientific and technological level, project scale is also in continuous expansion, foundation works construction in worldwide and development of resources constantly develop to deep, the mining degree of depth increases and condition is tending towards complicated, and the engineering such as increasing water conservancy and hydropower, traffic, national defence and Fundamental Physics Experiments is built in the strong Tectonic activity region in deep and China, the engineering accident such as casualties, stop work and production that high strength rock burst, the lasting deep engineering such as large deformation and large volume landslide disaster cause remains high, and the economic loss caused is startling.Initially heavily stressed is the most direct controlling factor forming above-mentioned disaster and affect dissimilar formation of marine disasters mechanism.Therefore, accurately measure the initial field stress of Project Areas under buried large ground pressure be carry out high strength rock burst, continue the deep engineering calamity source reasonable assessment such as large deformation and large volume landslide, the prerequisite of Accurate Prediction and reliable prevention and control and key, this has become a focus and the important development direction of deep engineering research field in recent years.
The most frequently used method of detecting earth stress is hydraulic fracturing and stress relief method.There is the necessary limitation that a principal direction of stress tensor is consistent with borehole axial potentially in advance in hydraulic fracturing.Meanwhile, hydraulic fracturing patent CN2643300 small-bore hydrofracturing detecting earth stress device; CN102998030A rock mass stress monitor; The hydraulic fracturing detecting earth stress system of a CN103076119A panorama inspection instrument for borehole; All almost without exception, used high pressure pumping station, even pumping station with extra-high voltage, it lacks security, and needs the hydraulic control system of a set of complexity.Stress relief method obtains the optimal method of space three-dimensional terrestrial stress, but the depth capacity that total stress is removed at present is 510m, is less than hydraulic fracturing MTD.Meanwhile, under condition of high ground stress, in total stress releasing process, often there is rock-core disking phenomenon, be difficult to the complete core length needed for obtaining, become the important technical obstacle of restriction total stress overcoring method successful Application under large ground pressure.Use local stress overcoring method, then can avoid heavily stressed under carry out overlapping the cake phenomenon in core stress relieving process.At the scene test in, total stress overcoring method need measured hole to creep into and rinse, aperture deformation gauge is laid, remove hole excavation, complicated operation, wastes time and energy, and therefore, need make improvements.
Utility model content
The purpose of this utility model is exactly the deficiency that will solve above-mentioned background technology, provides a kind of detecting earth stress device that can realize deep high-ground stress local stress overcoring method.
The technical solution of the utility model is: a kind of Deep ground stress local solution division proving installation, it is characterized in that: comprise the fixed muffle, tensioning sleeve, drive sleeve and the turnbarrel that set gradually vertically from top to bottom, driving oil cylinder is set in described fixed muffle, the described output terminal of driving oil cylinder is connected with one end of piston rod, described piston rod is arranged vertically, and the other end of described piston rod extend in described tensioning sleeve; The barrel arranged outside of described tensioning sleeve has a circle rubber layer, and described rubber layer is connected by symmetrically arranged connecting rod with described piston rod, and the two ends of described connecting rod are hinged with described rubber layer, piston rod respectively; Be provided with the oscillating cylinder that its output terminal rotates in described drive sleeve vertically, the output terminal of described oscillating cylinder is arranged on described turnbarrel top center place, and described turnbarrel internal fixtion is provided with borehole drill construction, wiper mechanism and mechanism for testing.
In such scheme:
The radial sidewalls of described tensioning sleeve is provided with depressed area inwardly, and the upper/lower terminal of described rubber layer is fixedly connected with bottom with the top of described depressed area respectively; Described connecting rod is provided with 4, and described connecting rod is umbrella distribution with the central shaft of tensioning sleeve.
Described borehole drill construction and mechanism for testing are symmetrical arranged with turnbarrel central shaft, and described wiper mechanism is positioned on the perpendicular bisector of described borehole drill construction and mechanism for testing line.
Upper spacer and lower clapboard has been disposed radially in described turnbarrel, the stiff end of described borehole drill construction and mechanism for testing is positioned at described turnbarrel top lower surface, the stiff end of described wiper mechanism is positioned at described lower clapboard lower surface, described upper spacer and lower clapboard are provided with the through hole passed by described borehole drill construction and mechanism for testing, and the working end of described borehole drill construction, wiper mechanism and mechanism for testing is positioned at same level.
Described borehole drill construction comprises the first telescopic oil cylinder, rotation motor and the drill bit that set gradually along axis, the stiff end of described first telescopic oil cylinder is fixedly installed on described turnbarrel top lower surface, the output terminal of described first telescopic oil cylinder is fixedly connected with the base of described rotation motor, and the output terminal of described rotation motor is fixedly connected with described drill bit.
Described wiper mechanism comprises the second telescopic oil cylinder and nozzle that set gradually along axis, and the stiff end of described second telescopic oil cylinder is fixedly installed on described lower clapboard lower surface, and the output terminal of described second telescopic oil cylinder is fixedly connected with described nozzle.
Described mechanism for testing comprises the 3rd telescopic oil cylinder and deformation gauge, and the stiff end of described 3rd telescopic oil cylinder is fixedly installed on described turnbarrel top lower surface, and the output terminal of described first telescopic oil cylinder is fixedly connected with described deformation gauge.
Sealed by back up pad bottom described turnbarrel, described back up pad is provided with the through hole passed by described borehole drill construction, wiper mechanism and mechanism for testing, and described back up pad center is provided with detector.
Rubber layer in tensioning sleeve in the utility model opens under the effect of the connecting rod moved downward, thus makes proving installation be fixed on hole wall; Oscillating cylinder drives turnbarrel to rotate, and corresponding borehole drill construction, wiper mechanism and mechanism for testing work successively, obtain the varying aperture data of needs, and then calculates the stress on measuring point ground.
The utility model has miniaturization, lightness, intellectuality, systematization, feature that EM equipment module ﹑ practicality is stronger, and it is easy and simple to handle, can shorten Measuring Time, saves and measures cost, is applicable to the geostress survey of heavily stressed lower other hole stress relief method.
Accompanying drawing explanation
Fig. 1 is schematic front view of the present utility model;
Fig. 2 is schematic side view of the present utility model;
Fig. 3 is operating diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to figure 1 and Fig. 2, a kind of Deep ground stress local solution division proving installation of the present embodiment, comprises the fixed muffle 1, tensioning sleeve 2, drive sleeve 3 and the turnbarrel 4 that set gradually vertically from top to bottom:
Arrange in fixed muffle 1 and drive oil cylinder 5, drive the output terminal of oil cylinder 5 to be connected with one end of piston rod 6, piston rod 6 is arranged vertically, and the other end of piston rod 6 extend in tensioning sleeve 2; And the barrel of tensioning sleeve 2 is provided with depressed area 10 inwardly, be provided with in depressed area 10 and its cross section rubber layer 7 always, the upper/lower terminal of rubber layer 7 is fixedly connected with bottom with the top of depressed area 10 respectively; Rubber layer 7 is connected by symmetrically arranged connecting rod 8 with piston rod 6, and the two ends of connecting rod 8 are hinged with rubber layer 7, piston rod 6 respectively, and connecting rod 8 is provided with 4, and connecting rod 8 is umbrella distribution with the central shaft of tensioning sleeve 2.Drive oil cylinder 5 to work, piston rod 6 can be promoted, drive the connecting rod 8 be connected with piston rod 6 to move downward, rubber layer 7 is expanded outwardly, and then make rubber layer 7 tensioning hole wall, realize the fixing of side-looking device.
And in drive sleeve 3, being provided with the oscillating cylinder 9 that its output terminal rotates vertically, the output terminal of oscillating cylinder 9 is arranged on turnbarrel 4 top center place, and turnbarrel 4 internal fixtion is provided with borehole drill construction, wiper mechanism and mechanism for testing.
Upper spacer 11 and lower clapboard 12 has been disposed radially in the turnbarrel 4 of the present embodiment, the stiff end of borehole drill construction and mechanism for testing is positioned at turnbarrel 4 top lower surface, the stiff end of wiper mechanism is positioned at lower clapboard 12 lower surface, upper spacer 11 and lower clapboard 12 are provided with the through hole passed by borehole drill construction and mechanism for testing, and the working end of borehole drill construction, wiper mechanism and mechanism for testing is positioned at same level.
The borehole drill construction of the present embodiment, mechanism for testing and wiper mechanism are that isosceles triangle is arranged, are specially: borehole drill construction, mechanism for testing are symmetrical arranged with turnbarrel 4 central shaft, and wiper mechanism is positioned on the perpendicular bisector of borehole drill construction and mechanism for testing line.
5 borehole drill constructions of the present embodiment comprise the first telescopic oil cylinder 13, rotation motor 14 and the drill bit 15 that set gradually along axis, the stiff end of the first telescopic oil cylinder 13 is fixedly installed on turnbarrel 4 top lower surface, the output terminal of the first telescopic oil cylinder 13 is fixedly connected with the base of rotation motor 14, and the output terminal of rotation motor 14 is fixedly connected with drill bit 15.Under the vertical power of the first telescopic oil cylinder 13 and the rotary power of rotation motor 14 drive jointly, drill bit 15 carries out boring work.
The stiff end that the wiper mechanism of the present embodiment comprises the second telescopic oil cylinder 16 and nozzle 17, second telescopic oil cylinder 16 set gradually along axis is fixedly installed on lower clapboard 12 lower surface, and the output terminal of the second telescopic oil cylinder 16 is fixedly connected with nozzle 17.Under the vertical power drive of the second telescopic oil cylinder 16, nozzle 17 is sprayed water, and completes and carries out cleaning to the hole got out by drill bit.
The stiff end that mechanism for testing comprises the 3rd telescopic oil cylinder 18 and deformation gauge the 19, three telescopic oil cylinder 18 is fixedly installed on turnbarrel 4 top lower surface, and the output terminal of the 3rd telescopic oil cylinder 18 is fixedly connected with deformation gauge 19.Under the vertical power drive of the 3rd telescopic oil cylinder 18, deformation gauge 19 can be in the diverse location of cleaning metapore, can measure and record the deformation data cleaning metapore diverse location.
Sealed by back up pad 20 bottom the present embodiment turnbarrel 4, back up pad 20 is provided with the through hole passed by borehole drill construction, wiper mechanism and mechanism for testing, and back up pad 20 center is provided with detector 21, to carry out visual tracking.
The proving installation of the present embodiment has miniaturization, lightness, intellectuality, systematization, feature that EM equipment module ﹑ practicality is stronger, and its principle of work is:
1, first detecting earth stress device is transported to cover foot of hole (polishing flat at the bottom of hole);
2, drive oil cylinder 5 to work, promote piston rod 6, connecting rod 8 moves downward, and rubber layer 7 is expanded outwardly, and then makes rubber layer 7 tensioning hole wall, realizes the fixing of side-looking device;
3, drill bit 15 is promoted to realize feeding by the first telescopic oil cylinder 13, and by and rotation motor 14 drive drill bit 15 to rotate, lay measured hole, the position (as shown in working position in Fig. 3 one) of record measured hole;
4, oscillating cylinder 9 works, and makes turnbarrel 4 be rotated counterclockwise 90 °, and now the second telescopic oil cylinder 16 is just to measured hole 21, and nozzle 17 sprays press water, cleaning measured hole (as shown in working position in Fig. 3 two);
5, oscillating cylinder 9 works, turnbarrel 4 is made again to be rotated counterclockwise 90 °, now detecting earth stress aperture deformation gauge 19 is just to measured hole, 3rd telescopic oil cylinder 18 promotes deformation gauge 19, the initial radial deformation data of the record each measuring point of aperture deformation gauge in measured hole (as shown in working position in Fig. 3 three);
6, subsequently, drill bit 15, under the first telescopic oil cylinder 13 and rotation motor 14 drive, creeps into other hole, to carry out stress relieving to measured hole, obtains aperture deformation gauge data (as shown in working position in Fig. 3 three).
Above-mentioned bore mode, has easy and simple to handle, shortens Measuring Time, saves the feature measuring cost, carries out, in geostress survey, can improving the success ratio of detecting earth stress in high-ground stress area.
The above is only preferred embodiment of the present utility model, not does any pro forma restriction to structure of the present utility model.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.

Claims (8)

1. a Deep ground stress local solution division proving installation, it is characterized in that: comprise the fixed muffle (1), tensioning sleeve (2), drive sleeve (3) and the turnbarrel (4) that set gradually vertically from top to bottom, arrange in described fixed muffle (1) and drive oil cylinder (5), the output terminal of described driving oil cylinder (5) is connected with one end of piston rod (6), described piston rod (6) is arranged vertically, and the other end of described piston rod (6) extend in described tensioning sleeve (2); The barrel arranged outside of described tensioning sleeve (2) has a circle rubber layer (7), described rubber layer (7) is connected by symmetrically arranged connecting rod (8) with described piston rod (6), and the two ends of described connecting rod (8) are hinged with described rubber layer (7), piston rod (6) respectively; The oscillating cylinder (9) that its output terminal rotates is provided with vertically in described drive sleeve (3), the output terminal of described oscillating cylinder (9) is arranged on described turnbarrel (4) top center place, and described turnbarrel (4) internal fixtion is provided with borehole drill construction, wiper mechanism and mechanism for testing.
2. Deep ground stress local solution division proving installation according to claim 1, it is characterized in that: the radial sidewalls of described tensioning sleeve (2) is provided with depressed area (10) inwardly, the upper/lower terminal of described rubber layer (7) is fixedly connected with bottom with the top of described depressed area (10) respectively; Described connecting rod (8) is provided with 4, and described connecting rod (8) is umbrella distribution with the central shaft of tensioning sleeve (2).
3. Deep ground stress local solution division proving installation according to claim 1, it is characterized in that: described borehole drill construction and mechanism for testing are symmetrical arranged with turnbarrel (4) central shaft, and described wiper mechanism is positioned on the perpendicular bisector of described borehole drill construction and mechanism for testing line.
4. Deep ground stress local solution division proving installation according to claim 3, it is characterized in that: in described turnbarrel (4), be disposed radially upper spacer (11) and lower clapboard (12), the stiff end of described borehole drill construction and mechanism for testing is positioned at described turnbarrel (4) top lower surface, the stiff end of described wiper mechanism is positioned at described lower clapboard (12) lower surface, described upper spacer (11) and lower clapboard (12) are provided with the through hole passed by described borehole drill construction and mechanism for testing, described borehole drill construction, the working end of wiper mechanism and mechanism for testing is positioned at same level.
5. Deep ground stress local solution division proving installation according to claim 4, it is characterized in that: described borehole drill construction comprises the first telescopic oil cylinder (13), rotation motor (14) and the drill bit (15) that set gradually along axis, the stiff end of described first telescopic oil cylinder (13) is fixedly installed on described turnbarrel (4) top lower surface, the output terminal of described first telescopic oil cylinder (13) is fixedly connected with the base of described rotation motor (14), and the output terminal of described rotation motor (14) is fixedly connected with described drill bit (15).
6. Deep ground stress local solution division proving installation according to claim 4, it is characterized in that: described wiper mechanism comprises the second telescopic oil cylinder (16) and nozzle (17) that set gradually along axis, the stiff end of described second telescopic oil cylinder (16) is fixedly installed on described lower clapboard (12) lower surface, and the output terminal of described second telescopic oil cylinder (16) is fixedly connected with described nozzle (17).
7. Deep ground stress local solution division proving installation according to claim 4, it is characterized in that: described mechanism for testing comprises the 3rd telescopic oil cylinder (18) and deformation gauge (19), the stiff end of described 3rd telescopic oil cylinder (18) is fixedly installed on described turnbarrel (4) top lower surface, and the output terminal of described 3rd telescopic oil cylinder (18) is fixedly connected with described deformation gauge (19).
8. the Deep ground stress local solution division proving installation according to claim 1,3 or 4, it is characterized in that: described turnbarrel (4) bottom is sealed by back up pad (20), described back up pad (20) is provided with the through hole passed by described borehole drill construction, wiper mechanism and mechanism for testing, and described back up pad (20) center is provided with detector (21).
CN201520306779.XU 2015-05-13 2015-05-13 Division testing arrangement is separated to deep crustal stress part Expired - Fee Related CN204924504U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105092105A (en) * 2015-05-13 2015-11-25 中国科学院武汉岩土力学研究所 Deep crustal stress local relief method testing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105092105A (en) * 2015-05-13 2015-11-25 中国科学院武汉岩土力学研究所 Deep crustal stress local relief method testing device
CN105092105B (en) * 2015-05-13 2017-09-19 中国科学院武汉岩土力学研究所 A kind of local overcoring method test device of Deep ground stress

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20151230

Termination date: 20200513