CN208297498U - A kind of rock expansion rate tester of controllable temperature and automatic water supplement - Google Patents

A kind of rock expansion rate tester of controllable temperature and automatic water supplement Download PDF

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Publication number
CN208297498U
CN208297498U CN201720928833.3U CN201720928833U CN208297498U CN 208297498 U CN208297498 U CN 208297498U CN 201720928833 U CN201720928833 U CN 201720928833U CN 208297498 U CN208297498 U CN 208297498U
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China
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automatic water
rock
rock expansion
water
supplementing tank
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CN201720928833.3U
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付宏渊
陈镜丞
曾铃
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Changsha University of Science and Technology
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Changsha University of Science and Technology
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Abstract

The utility model discloses the rock expansion rate testers of a kind of controllable temperature and automatic water supplement, including pedestal, automatic water supplementing tank, telescoping shoring column, rock expansion room, temperature-controlling system, hose, dial indicators rack and amesdial.The automatic water supplementing tank is closed hydrostatic column, and bottom is mounted on rectangular tabular pedestal by telescoping shoring column;Rock expansion room is the drum ladle of upper end opening, is fixed on the base the other side, rock expansion room is connected to automatic water supplementing tank by hose;The temperature-controlling system is made of the indoor annular aqueduct of the numerical-control heating device, micro pump and the rock expansion that are arranged on automatic water supplementing tank.The dial indicators rack is located at by rock expansion room.The temperature that the utility model can test rock expansion controls, and feeds moisture automatically in long term test, maintains immersion height, and error caused by eliminating because of immersion height change reduces the workload of artificial recharge, structure is simple and effective.

Description

A kind of rock expansion rate tester of controllable temperature and automatic water supplement
Technical field
The utility model relates to a kind of experimental rigs in Geotechnical Engineering field, can try more particularly to one kind The rock expansion rate tester of accurate temperature controlling and automatic water supplement during testing.
Background technique
Rock with clay mineral can expand after immersion, influence Rock Engineering Properties.Using traditional rock Swelling rate test instrument carries out rock expansion rate when measuring, and due to being unable to temperature adjustment, can not measure rock at different temperatures swollen Swollen rate, acquired results are not comprehensive enough.Simultaneously as measuring, the period is longer, and rock immersed depth generates very important because of evaporation Reduction, need frequent artificial recharge, and water level is difficult to remain unchanged in the process.Accuracy in measurement is significantly affected, keeps its result practical Using limited.
Summary of the invention
For the defect and deficiency of above-mentioned present technology, the utility model provides the rock of a kind of controllable temperature and automatic water supplement Swelling rate test instrument, can during accurate Control experiment rock immersion temperature, carry out the rock expansion rate under different temperatures Test;It can be fed automatically when rock immersed depth reduces simultaneously, maintain height of water level constant, eliminated SEA LEVEL VARIATION and draw The error in measurement risen.
The technical solution of the utility model includes: the rock expansion rate tester of a kind of controllable temperature and automatic water supplement, including pedestal, Automatic water supplementing tank, telescoping shoring column, rock expansion room, temperature-controlling system, hose, dial indicators rack and amesdial, specific structure And connection relationship are as follows:
The pedestal is square platy structure, for carrying remaining part, and keeps the stabilization of superstructure.
The automatic water supplementing tank is hydrostatic column, and top of the tank sets an inlet valve for intaking, and bottom sets an outlet valve For being discharged, tank interior is divided into upper reservoir chamber and lower reservoir chamber by middle partition, is connected between two reservoir chambers by crossing water conduit It is logical, and it is equipped with the folding that valve controlled water conduit, lower reservoir chamber top is equipped with stomata at middle partition, and stomata lower section is useful In the penstock of connection micro pump, tank base is connect with telescoping shoring column.
The telescoping shoring column is by the relatively large big pipe of a diameter, the relatively small tubule of a diameter and support plate structure At wherein tubule is nested in big pipe, and the entirety that telescoping shoring column is adjusted by changing the length that tubule gos deep into big pipe is long Degree;Big pipe one end is connected to the middle position of long side side on pedestal, and the other end is equipped with fastening screw, can fix the position of tubule It sets, telescoping shoring column is made to keep corresponding length constant;Support plate, the bottom company of support plate and automatic water supplementing tank are connected at the top of tubule It connects.
The rock expansion room is the cylindrical container of upper end opening, is fixed on the base opposite with automatic water supplementing tank another Side, bottom is equipped with round porous disc and temperature sensor, and leans on equipped with one piece of permeable stone and one piece of metal caul, outer wall The middle part of nearly automatic water supplementing tank side is equipped with the conduit that draws water for connecting micro pump, and outer wall bottom is close to automatic water supplementing tank Side is equipped with the connecting conduit for water inlet, and outer wall bottom, which is equipped with drain valve far from automatic water supplementing tank side, can be used for that rock is discharged Stone expands indoor water.
The temperature-controlling system is made of numerical-control heating device, micro pump and annular aqueduct, and wherein numerical-control heating device is by controlling Device, heating rod, support frame, temperature sensor and conducting wire composition processed, wherein heating rod is fixed on automatic water supplementing tank by support frame Lower reservoir chamber in, controller is attached on the outer wall of automatic water supplementing tank, and temperature sensor is located at rock expansion room bottom, number The controller of control heater is connect with heating rod, temperature sensor by conducting wire;Micro pump is attached to the outer of automatic water supplementing tank On wall, the water outlet of micro pump is connected by hose with the penstock of lower reservoir chamber, and water inlet end passes through hose and rock The conduit that draws water of expanding chamber is connected;Annular aqueduct is helical form pipe fitting, is fixed on the inner wall of rock expansion room, lower end nozzle Connect the connecting conduit of rock expansion room bottom.
The dial indicators rack is made of vertical bar and cross bar, and vertical bar is the solid hopkinson bar of circular section, and one end is fixed on the base Close to the side of rock expansion room, at 0.25 times of the rock expansion room diameter of section away from rock expansion chamber outer wall, and vertical bar hangs down Directly in pedestal;Cross bar is square the hollow pipe in section, and there is vertical circular hole in cross bar one end, and covers on vertical bar, by fastening spiral shell Cross bar is fixed on the different height of vertical bar by silk, and cross bar is mutually perpendicular to vertical bar, and the cross bar other end also has vertical circular hole, is used In placing amesdial, rotating horizontal pole should make the center of circle of the amesdial probe being placed on cross bar and rock expansion chamber cross-section position In on same vertical line.
The outer wall of the automatic water supplementing tank is transparent organic glass material, can be from the water inside extraneous observation automatic water supplementing tank , mark line is carved with at water conduit bottom sustained height excessively on the outer wall of automatic water supplementing tank.
The diameter for crossing water conduit of the automatic water supplementing tank is greater than 5mm, eliminates the capillary phenomenon of conduit, and cross water conduit Lower port in the lower reservoir chamber of automatic water supplementing tank, vertical position be lower than stomata and penstock.
When the vertical position of the conduit that draws water of the rock expansion room is placed in rock expansion room lower than rock sample Tip height;The annular aqueduct of the temperature-controlling system is the copper pipe through antirust treatment.
The utility model advantage: structure is simple and novel, is readily produced, and convenient for operation, cost is relatively low, can carry out rock not Swelling rate test under synthermal, and temperature control is accurate;Automatically the water level reduced when testing by evaporation can be mended It gives, maintains rock immersed depth constant, eliminate error caused by SEA LEVEL VARIATION.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the rock expansion rate tester of controllable temperature described in the utility model and automatic water supplement.
Fig. 2 is automatic water supplement jar structure described in the utility model and accessory schematic diagram.
Fig. 3 is telescoping shoring column structural schematic diagram described in the utility model.
Fig. 4 is the structural schematic diagram of pedestal described in the utility model and rock expansion room.
Fig. 5 is the structural schematic diagram of dial indicators rack described in the utility model.
Fig. 6 is the structural schematic diagram of annular aqueduct described in the utility model.
Specific embodiment
For the content for further appreciating that the utility model, with reference to the accompanying drawing to the particular condition in use of the utility model, It elaborates.
Referring to figs. 1 to Fig. 6, a kind of rock expansion rate tester of controllable temperature and automatic water supplement, including pedestal 3, automatic benefit Water pot 1, telescoping shoring column 4, rock expansion room 11, temperature-controlling system, hose 6, amesdial 7 and dial indicators rack 10, it is specific to tie Structure and connection relationship are as follows:
The pedestal 3 is square platy structure, for carrying remaining part, and keeps the stabilization of superstructure.
The automatic water supplementing tank is 1 hydrostatic column, and top of the tank sets inlet valve 12 for intaking, and bottom sets out water valve 24 For being discharged, tank interior is divided into upper reservoir chamber 13 and lower reservoir chamber 23 by middle partition 21, by crossing water between two reservoir chambers Conduit 15 is connected to, and is equipped with the folding that valve 14 controlled water conduit 15, and lower reservoir chamber top is equipped with gas at middle partition 21 Hole 22, the penstock 19 for connecting micro pump is equipped with below stomata 22, and tank base is connect with telescoping shoring column 4.
The telescoping shoring column 4 is by the relatively large big pipe 26 of a diameter, the relatively small tubule 28 of a diameter and support Plate 27 is constituted, and wherein tubule 28 is nested in big pipe 26, scalable by changing the length adjustment that tubule 28 gos deep into big pipe 26 The entire length of bracket 4;Big 26 one end of pipe connects the middle position of long side side on the base 3, and the other end is equipped with fastening screw 25, for fixing the position of tubule 28, telescoping shoring column 4 is made to keep corresponding length constant;Support plate 27 is connected at the top of tubule 28, Support plate 27 is connect with the bottom of automatic water supplementing tank 1.
The rock expansion room 11 is the cylindrical container of upper end opening, it is fixed on the base 3 with 11 phase of automatic water supplementing tank Pair the other side, bottom is equipped with round porous disc 32 and temperature sensor 31, and is furnished with one piece of permeable stone 34 and one block of metal Backing plate 33;Its outer wall is equipped with the conduit 29 that draws water for connecting micro pump 5 close to the middle and upper part of 1 side of automatic water supplementing tank;Its Outer wall bottom is equipped with the connecting conduit 30 for water inlet close to automatic water supplementing tank side;Its outer wall bottom is far from automatic water supplementing tank one Side is equipped with drain valve 35 for the indoor water of rock expansion to be discharged.
The temperature-controlling system is made of numerical-control heating device 2, micro pump 5 and annular aqueduct 9, wherein numerical-control heating device 2 It is made of controller 16, heating rod 20, support frame 18, temperature sensor 31 and conducting wire 17, wherein heating rod 20 passes through support frame 18 are fixed in the lower reservoir chamber 23 of automatic water supplementing tank 1, and controller 16 is attached on the outer wall of automatic water supplementing tank 1, and temperature passes Sensor 31 is located at rock expansion room bottom, and the controller 16 and heating rod 20, temperature sensor 31 of numerical-control heating device 2 pass through conducting wire 17 connections;Micro pump 5 is attached on the outer wall of automatic water supplementing tank 1, and the water outlet of micro pump 5 passes through hose 6 and lower water storage The penstock 19 of room 23 is connected, and water inlet end is connected by hose 6 with the conduit 29 that draws water of rock expansion room 11;Annular water guide Pipe 9 is helical form pipe fitting, is fixed on the inner wall of rock expansion room 11, and lower end nozzle connects the connection of 11 bottom of rock expansion room Conduit 30;
The dial indicators rack 10 is made of vertical bar 38 and cross bar 36, and vertical bar 38 is the solid hopkinson bar of circular section, and one end is fixed On the base 3 close to the side of rock expansion room 11, rock expansion room diameter of section of 0.25 times away from 11 outer wall of rock expansion room Place, and vertical bar 38 is perpendicular to pedestal 3;Cross bar 36 is square the hollow pipe in section, and there is vertical circular hole in 36 one end of cross bar, and covers On vertical bar 38, cross bar 36 is fixed on the different height of vertical bar 38 by fastening screw 37, and cross bar 36 and vertical bar 38 are mutual Vertically;36 other end of cross bar also is provided with vertical circular hole, for placing amesdial 7, should to place around 38 rotating horizontal pole 36 of vertical bar It is located on same vertical line in the probe of the amesdial 7 on cross bar 36 and the center of circle of rock expansion chamber cross-section.
The outer wall of the automatic water supplementing tank 1 is transparent organic glass material, can be inside external world's observation automatic water supplementing tank 1 Water level is carved with mark line with crossing at 15 bottom sustained height of water conduit on the outer wall of automatic water supplementing tank 1.
The diameter for crossing water conduit 15 of the automatic water supplementing tank 1 is greater than 5mm, eliminates the capillary phenomenon of conduit, and cross water For the lower port of conduit 15 in the lower reservoir chamber of automatic water supplementing tank 1, vertical position is lower than stomata 22 and penstock 19.
The vertical position of the conduit 29 that draws water of the rock expansion room 11 is placed on rock expansion room 11 lower than rock sample 8 Tip height when interior.
Concrete operations example is as follows:
1, prepare test rock sample 8 and clean water by code requirement, whether each component of inspection apparatus is normal, and guarantees instrument It is dry clean in each container of device.
2, the outlet valve 24 of automatic water supplementing tank 1 is closed, inlet valve 12 is opened and crosses the valve 14 on water conduit, passes through water inlet Valve 12 is slowly filled the water into automatic water supplementing tank 1, until lower reservoir chamber water level reaches at mark line in automatic water supplementing tank 1, is then suspended Valve 14 is closed in water filling;It then continues through inlet valve 12 to fill the water into automatic water supplementing tank, until the upper water storage of automatic water supplementing tank 1 Room 13 stops water filling after being full of water, and closes inlet valve 12.
3, it is put into rock sample 8 in rock expansion room 11, permeable stone 34 is placed on rock sample 8, unclamps fastening spiral shell Silk 25 adjusts the length of telescoping shoring column 4, so that the mark line of 1 outer wall of automatic water supplementing tank and 34 top of permeable stone are in same level On line, then tightening fastening screw 25 fixes the length of telescoping shoring column 4, and takes out rock sample out of rock expansion room 11 8 and permeable stone 34.
4, the drain valve 35 for closing rock expansion room 11, then slowly fills the water into rock expansion room 11, to rock expansion Height of water level is mutually simultaneously stopped water filling with automatic water supplement tank wall mark line in room 11.
5, the outlet valve and valve 14 of opening automatic water supplementing tank 1 are always in lower reservoir chamber 23 due to the presence of stomata 22 Atmospheric pressure.Instantly when water level was higher than 15 bottom position of water conduit in reservoir chamber 23, the water in upper reservoir chamber 13 will not be downward Flow to lower reservoir chamber 23;Instantly when water level was reduced to 15 bottom of water conduit or less in reservoir chamber 23, air can be along water excessively Conduit 15 enters upper reservoir chamber 13, while the water in upper reservoir chamber 13 passed through water conduit 15 and enters lower reservoir chamber 23, made lower storage Water level promoting in water chamber 23, until water level was not less than 15 bottom of water conduit in lower reservoir chamber 23.
6, numerical-control heating device 2 is opened, and sets the water temperature of test requirements document by controller 2;Micro pump 5 is opened simultaneously, Water is circulated between lower reservoir chamber 23 and rock expansion room 11 by hose 6 at this time, and lower reservoir chamber 23 and rock expansion Height of water level is consistent in room 11.
7, water in rock expansion room 11 measured by temperature sensor 31 is checked by the controller 16 of numerical-control heating device 2 Rock sample 8 is put into rock expansion room, and after water temperature in rock expansion room 11 reaches test set temperature in rock by temperature Permeable stone 34 and metal caul 33 are placed on stone sample 8, water level is slightly promoted in rock expansion room 11 at this time, opens drain valve 35, drain valve 35 is closed when water level in rock expansion room 11 is fallen after rise to 1 outer wall mark line same horizontal line of automatic water supplementing tank.
8, amesdial 7 is placed on the cross bar 36 of dial indicators rack 10, unclamps fastening screw 37, rotating horizontal pole 36 makes thousand The center of circle of the probe and rock sample 8 that divide table 7 is on same vertical line, vertically movable cross bar 36, so that the probe and rock of amesdial 7 Metal caul contact on stone sample 8, tightens fastening screw 37 and cross bar position is fixed, and read 7 institute of amesdial at this time Show reading.
9, thereafter according to the reading of the time interval record amesdial 7 of the code requirement of rock expansion rate test.
10, the residual water level in the upper reservoir chamber 13 of automatic water supplementing tank 1 is checked when reading every time, when water in upper reservoir chamber 13 The lower room in position need to carry out moisturizing.Valve 14 is closed at this time, opens inlet valve 12, is slowly infused by the upward reservoir chamber 13 of inlet valve 12 Enter and closes inlet valve 12 with the equality of temperature clean water in rock expansion room 11, band after filling reservoir chamber 13, open valve 14.
The description of aforesaid operations example is for convenience it is appreciated that and using the utility model.The protection of the utility model Range is not limited by operational instances.Anyone should be regarded as scope of protection of the utility model to the modification made of the utility model It is interior.

Claims (5)

1. the rock expansion rate tester of a kind of controllable temperature and automatic water supplement, including pedestal, automatic water supplementing tank, telescoping shoring column, Rock expansion room, temperature-controlling system, hose, dial indicators rack and amesdial, specific structure and connection relationship are as follows:
The pedestal is square platy structure, positioned at the bottommost of tester;
The automatic water supplementing tank is hydrostatic column, and top of the tank sets an inlet valve for intaking, and bottom sets an outlet valve and is used for Water outlet, tank interior are divided into upper reservoir chamber and lower reservoir chamber by middle partition, are connected between two reservoir chambers by crossing water conduit, and The folding of water conduit was controlled equipped with valve, lower reservoir chamber top is equipped with stomata at middle partition, has below stomata for connecting The penstock of micro pump is connect, tank base is connect with telescoping shoring column;
The telescoping shoring column is made of the relatively large big pipe of a diameter, the relatively small tubule of a diameter and support plate, Middle tubule is nested in big pipe, adjusts the entire length of telescoping shoring column by changing the length that tubule gos deep into big pipe;Greatly Pipe one end is connected to the middle position of long side side on pedestal, and the other end is equipped with fastening screw to be made for fixing the position of tubule Telescoping shoring column keeps corresponding length constant;Support plate, the bottom connection of support plate and automatic water supplementing tank are connected at the top of tubule;
The rock expansion room is the cylindrical container of upper end opening, is fixed on the base opposite with automatic water supplementing tank another Side, bottom is equipped with round porous disc and temperature sensor, and is furnished with one piece of permeable stone and one piece of metal caul;Its outer wall is close The middle part of automatic water supplementing tank side is equipped with the conduit that draws water for connecting micro pump;Its outer wall bottom is close to automatic water supplementing tank one Side is equipped with the connecting conduit for water inlet;Its outer wall bottom, which is equipped with drain valve far from automatic water supplementing tank side, can be used for that rock is discharged Expand indoor water;
The temperature-controlling system is made of numerical-control heating device, micro pump and annular aqueduct, wherein numerical-control heating device by controller, Heating rod, support frame, temperature sensor and conducting wire composition, wherein heating rod is fixed on the lower storage of automatic water supplementing tank by support frame In water chamber, controller is attached on the outer wall of automatic water supplementing tank, and temperature sensor is located at rock expansion room bottom, numerical-control heating The controller of device is connect with heating rod, temperature sensor by conducting wire;Micro pump is attached on the outer wall of automatic water supplementing tank, micro- The water outlet of type water pump is connected by hose with the penstock of lower reservoir chamber, and water inlet end passes through hose and rock expansion room The conduit that draws water is connected;Annular aqueduct is helical form pipe fitting, is fixed on the inner wall of rock expansion room, and lower end nozzle connects rock The connecting conduit of expanding chamber bottom;
The dial indicators rack is made of vertical bar and cross bar, and vertical bar is the solid hopkinson bar of circular section, and one end is fixed on the base close The side of rock expansion room, at 0.25 times of the rock expansion room diameter of section away from rock expansion chamber outer wall, and vertical bar perpendicular to Pedestal;Cross bar is square the hollow pipe in section, and there is vertical circular hole in cross bar one end, and covers on vertical bar, will by fastening screw Cross bar is fixed on the different height of vertical bar, and cross bar is mutually perpendicular to vertical bar, and the cross bar other end also has vertical circular hole, for putting Amesdial is set, it is same that rotating horizontal pole should make the center of circle of the amesdial probe being placed on cross bar and rock expansion chamber cross-section be located at On one vertical line.
2. the rock expansion rate tester of controllable temperature according to claim 1 and automatic water supplement, it is characterised in that: it is described from The outer wall of replenisher tank is moved as transparent organic glass material, is carved on the outer wall of automatic water supplementing tank at water conduit bottom sustained height excessively There is mark line.
3. the rock expansion rate tester of controllable temperature according to claim 1 and automatic water supplement, it is characterised in that: it is described from The diameter for crossing water conduit of dynamic replenisher tank is greater than 5mm, and crosses the lower port of water conduit in the lower reservoir chamber of automatic water supplementing tank, Vertical position is lower than stomata and penstock.
4. the rock expansion rate tester of controllable temperature according to claim 1 and automatic water supplement, it is characterised in that: the rock The tip height when vertical position of the conduit that draws water of stone expanding chamber is placed in rock expansion room lower than rock sample.
5. the rock expansion rate tester of controllable temperature according to claim 1 and automatic water supplement, it is characterised in that: the control The annular aqueduct of warm system is the copper pipe through antirust treatment.
CN201720928833.3U 2017-07-28 2017-07-28 A kind of rock expansion rate tester of controllable temperature and automatic water supplement Active CN208297498U (en)

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CN201720928833.3U CN208297498U (en) 2017-07-28 2017-07-28 A kind of rock expansion rate tester of controllable temperature and automatic water supplement

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107247131A (en) * 2017-07-28 2017-10-13 长沙理工大学 A kind of controllable temperature and the rock expansion rate test instrument of automatic water supplement
CN112924359A (en) * 2021-02-04 2021-06-08 中国水利水电科学研究院 Soil permeability coefficient measuring device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107247131A (en) * 2017-07-28 2017-10-13 长沙理工大学 A kind of controllable temperature and the rock expansion rate test instrument of automatic water supplement
CN112924359A (en) * 2021-02-04 2021-06-08 中国水利水电科学研究院 Soil permeability coefficient measuring device and method

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