SU700838A1 - Device for investigating properties of soil under the conditions of triaxial compression - Google Patents
Device for investigating properties of soil under the conditions of triaxial compressionInfo
- Publication number
- SU700838A1 SU700838A1 SU782629174A SU2629174A SU700838A1 SU 700838 A1 SU700838 A1 SU 700838A1 SU 782629174 A SU782629174 A SU 782629174A SU 2629174 A SU2629174 A SU 2629174A SU 700838 A1 SU700838 A1 SU 700838A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- side walls
- base
- soil
- elastic
- support frame
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Description
1one
Изобретение относитс к области строительства, в частности к приборам дл исследовани механических свойств грунтов.The invention relates to the field of construction, in particular to devices for studying the mechanical properties of soils.
Известен прибор дл испытани образцов , грунтов в услови х трехосного сжати , содержащий корпус, располо-i женные в нем эластичные мембраны, образующие замкнутый объем дл размещени испытываемого образца, и источники давлени , передающие нагрузку . на мембраны и нагрузочные плиты 1.A known device for testing samples, soil under conditions of three-axis compression, comprising a housing, elastic membranes located in it, forming a closed volume for accommodating the test specimen, and pressure sources transferring the load. on membranes and loading plates 1.
Недостатками этого прибора вл ютс отсутствие возможности точного определени величины объемных деформаций вcJ.eдcтвиe нарушени равномерности распределени нагрузки по плоd a ;и граней образца в зоне выступов нагрузочных плит при деформировании образца г из-за их заклинивани и перекоса.The disadvantages of this device are the inability to accurately determine the magnitude of the volumetric deformations of the JJ. Violation of the uniform distribution of the load over the area a and the sample faces in the area of the projections of the load plates when the sample r is deformed due to jamming and skewing.
Наиболее близким по технической сущности и достигаемому результату вл етс прибор дл исследовани свойств грунтов в услови х трехосного сжати , включающий корпус с основанием , кр лшкой и боковыми стенками, размещенными в нем рабочей камерой с эластичной оболочкой и камерамиThe closest in technical essence and the achieved result is a device for studying the properties of soils under conditions of three-axis compression, including a housing with a base, a lid and side walls, a working chamber with an elastic shell and chambers inside it.
давлени , св занными с нагрузочными и измерительными приспособлени ми 2 .pressure associated with the load and measuring devices 2.
Однако этот прибор не обеспечивает достаточно высокой точности измерени величины объемных деформаций образца вследствие изгиба стенок рабочих камер из своей плоскости при увеличении, давлени в гидросистеме. However, this device does not provide a sufficiently high accuracy of measuring the volume of sample deformations due to the bending of the walls of the working chambers from its plane with increasing pressure in the hydraulic system.
0 Кроме того, требуетс значительное врем на сборку и подготовку прибора к работе.0 In addition, considerable time is required for assembly and preparation of the device for operation.
Целью изобретени вл етс повышение точности измерений и снижение The aim of the invention is to improve the measurement accuracy and reduce
5 трудоемкости производства работ.5 the complexity of the work.
Поставленна цель достигаетс тем, что у прибора, включающего корпус с основанием, крышкой и боковыми стенками , размещенными в нем рабочей ка0 мерой с эластичной оболочкойи камерами давлени , св занными с нагрузочными и измерительными приспособлени ми , корпус снабжен имеющими внутренние проточки эластичными прокладками The goal is achieved by the fact that the instrument, which includes a housing with a base, a lid and side walls, is located in it with an elastic chamber and pressure chambers associated with load and measuring devices, the housing is provided with internal grooves
5 и четырехугольной опорной рамой с Винтами, пропущенными по углам опорной рамы, причем кажда камера давлени образована проточкой эластичной прокладки и стенкой рабочей камеры,а винты оперты на боковые стенки корпу которые в свою очередь соединены с о нованием. На фиг. 1 изображен предлагаемый прибор, продольный разрез; на фиг.2 то же, поперечный разрез. Прибор состоит из основани 1,шар нирно прикрепленных к нему откидных боковых стенок 2 и съемной крышки 3, на которых установлены камеры 4 давлени с эластичной оболочкой 5. Камеры 4 при их плотном прилегании и обжатии четырехугольной опорной рамой б образуют рабочую камеру, в которую помещаетс испытываемый образе 7 грунта. В углах рамы б выполнены резьбы в которых.перемещаютс силовые винты 8, упирающиес в центры бо ковых стенок 2. При такой установке .четырехугольной опорной рамы б обеспечиваетс наиболее рациональна работа стержней рамы б на раст лсение без изгиба. Камеры 4 давлени соединены с нагрузочной и контрольно-изме рительной системами. Узел 9 с каналом 10 служит дл присоединени приборй, измер ющего поровое давление . Прибор работает следующим образом На основание 1 устанавливаетс образец 7 грунта. Эластична оболочка 5 камер давлени плотно прилегает к гран м образца 7 и равномерно передает нагрузку от нагрузочного устройства . Четырехугольна опорна рама б плотно обжимает откидные стенки 2 , исключа их деформации из плос кости. Шарнирное крепление боковых откидных стенок 2 к основанию 1 обес печивает простоту и уменьшает продолжительность сборки-разборки прибо ра и подготовки его к работе. К узлу 9 может быть присоединен прибор дл измерени порового давлени в образце грунта,5 and a quadrilateral support frame with Screws missed at the corners of the support frame, each pressure chamber being formed by the groove of an elastic gasket and the wall of the working chamber, and the screws are supported on the side walls of the casing which are in turn connected with a support. FIG. 1 shows the proposed device, a longitudinal section; 2, the same cross-section. The device consists of a base 1, hinged side walls 2 attached to it and a removable cover 3, on which pressure chambers 4 with elastic sheath 5 are mounted. Chambers 4, with their snug fit and compression, form a working chamber in which the quadrangle support frame B the test image of the 7 soil. In the corners of the frame b, the threads are made in which the power screws 8 move against the centers of the side walls 2. With this installation of the quadrilateral support frame b, the most efficient operation of the frame rods b for stretching without bending is ensured. The pressure chambers 4 are connected to the load and control measurement systems. Node 9 with channel 10 serves to connect instruments that measure pore pressure. The device works as follows. A sample of soil 7 is installed on the base 1. The elastic shell 5 of the pressure chambers fits snugly to the edges of sample 7 and uniformly transfers the load from the load device. The quadrangular support frame b tightly compresses the flap walls 2, excluding their deformations from the plane. The hinged fastening of the side flaps 2 to the base 1 ensures simplicity and reduces the duration of the assembly-disassembly of the device and its preparation for operation. A device for measuring pore pressure in a soil sample can be attached to node 9.
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Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782629174A SU700838A1 (en) | 1978-06-09 | 1978-06-09 | Device for investigating properties of soil under the conditions of triaxial compression |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782629174A SU700838A1 (en) | 1978-06-09 | 1978-06-09 | Device for investigating properties of soil under the conditions of triaxial compression |
Publications (1)
Publication Number | Publication Date |
---|---|
SU700838A1 true SU700838A1 (en) | 1979-11-30 |
Family
ID=20770359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782629174A SU700838A1 (en) | 1978-06-09 | 1978-06-09 | Device for investigating properties of soil under the conditions of triaxial compression |
Country Status (1)
Country | Link |
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SU (1) | SU700838A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2649202A1 (en) * | 1989-06-29 | 1991-01-04 | Inst Francais Du Petrole | Device for applying three-dimensional (triaxial) stresses on a sample of material |
EP0422601A2 (en) * | 1989-10-13 | 1991-04-17 | Kernforschungszentrum Karlsruhe Gmbh | Testing device for detecting the behaviour of granular material under triaxial charge |
US5226310A (en) * | 1990-08-31 | 1993-07-13 | Exxon Production Research Company | Methods and apparatuses for measurement of the strengths, pore pressures, and mechanical properties of low permeability geologic materials |
US5275063A (en) * | 1992-07-27 | 1994-01-04 | Exxon Production Research Company | Measurement of hydration behavior of geologic materials |
CN103267676A (en) * | 2013-05-15 | 2013-08-28 | 三峡大学 | Mechanical test fixture |
CN104685990A (en) * | 2015-03-19 | 2015-06-10 | 成都赋阳技术开发有限公司 | Soil detection and improvement equipment |
CN107764636A (en) * | 2017-10-23 | 2018-03-06 | 中国矿业大学 | A kind of deformation measuring device and method of cuboid rock sample conventional triaxial compression test |
-
1978
- 1978-06-09 SU SU782629174A patent/SU700838A1/en active
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2649202A1 (en) * | 1989-06-29 | 1991-01-04 | Inst Francais Du Petrole | Device for applying three-dimensional (triaxial) stresses on a sample of material |
EP0422601A2 (en) * | 1989-10-13 | 1991-04-17 | Kernforschungszentrum Karlsruhe Gmbh | Testing device for detecting the behaviour of granular material under triaxial charge |
US5226310A (en) * | 1990-08-31 | 1993-07-13 | Exxon Production Research Company | Methods and apparatuses for measurement of the strengths, pore pressures, and mechanical properties of low permeability geologic materials |
US5275063A (en) * | 1992-07-27 | 1994-01-04 | Exxon Production Research Company | Measurement of hydration behavior of geologic materials |
CN103267676A (en) * | 2013-05-15 | 2013-08-28 | 三峡大学 | Mechanical test fixture |
CN103267676B (en) * | 2013-05-15 | 2015-08-19 | 三峡大学 | A kind of clamp for mechanics experiment |
CN104685990A (en) * | 2015-03-19 | 2015-06-10 | 成都赋阳技术开发有限公司 | Soil detection and improvement equipment |
CN107764636A (en) * | 2017-10-23 | 2018-03-06 | 中国矿业大学 | A kind of deformation measuring device and method of cuboid rock sample conventional triaxial compression test |
CN107764636B (en) * | 2017-10-23 | 2019-04-19 | 中国矿业大学 | A kind of deformation measuring device and method of cuboid rock sample conventional triaxial compression test |
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