CN104297457A - Three-dimensional grouting model test device and method - Google Patents

Three-dimensional grouting model test device and method Download PDF

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CN104297457A
CN104297457A CN201410584046.2A CN201410584046A CN104297457A CN 104297457 A CN104297457 A CN 104297457A CN 201410584046 A CN201410584046 A CN 201410584046A CN 104297457 A CN104297457 A CN 104297457A
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grouting
reaction force
confining pressure
model test
test device
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CN104297457B (en
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张伟杰
魏久传
谢道雷
尹会永
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Shandong Jianfeng Paper Co ltd
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Shandong University of Science and Technology
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Abstract

本发明公开了一种三维注浆模型试验装置及试验方法,包括竖直方向上依次连接的第一反力板、第二反力板和第三反力板;第一反力板和第二反力板之间安放围压反力腔,第二反力板和第三反力板间安放轴向加载模块;围压反力腔的内设有被注岩体装载模块及围压伺服加载模块;被注岩体装置模块内布置与数据处理模块相连接的传感器,传感器与数据处理模块相连。实现了室内注浆试验中三维地应力条件和地下水环境的稳定加载,有效保证了试验条件与被注岩体原始条件的一致性,为注浆理论研究提供了强有力支撑。

The invention discloses a three-dimensional grouting model test device and a test method, comprising a first reaction force plate, a second reaction force plate and a third reaction force plate sequentially connected in the vertical direction; the first reaction force plate and the second reaction force plate A confining pressure reaction chamber is placed between the reaction plates, and an axial loading module is placed between the second and third reaction plates; the injected rock mass loading module and the confining pressure servo loading module are installed in the confining pressure reaction chamber. module; a sensor connected to the data processing module is arranged in the injected rock mass device module, and the sensor is connected to the data processing module. The stable loading of the three-dimensional ground stress conditions and the groundwater environment in the indoor grouting test is realized, which effectively ensures the consistency between the test conditions and the original conditions of the injected rock mass, and provides a strong support for the research on grouting theory.

Description

A kind of three-dimensional slip casting model test apparatus and test method
Technical field
The present invention relates to a kind of three-dimensional slip casting model test apparatus and the test method that apply triaxiality.
Background technology
In the underground engineering construction such as mine, tunnel, often there is the problems such as surrouding rock deformation is large, water yield is large, gushing water even can occur and to dash forward mud disaster, cause huge personnel's property loss.Slip casting obtains as a kind of effective means of a kind ofly reinforcing weak surrounding rock, administering water damage and applies more and more widely in underground engineering disasters is administered.Model test is the important means of slurries Diffusion Law and reinforcement mechanism in research grouting treatment process.But less for the model test stand of tunnel excavation and slip casting at present, have a strong impact on the progress of correlative study.
Existing slip casting model test, spininess conducts a research to particular formation (as Single Fracture, simple porous medium), or utilizes similar rock mass simple embankment to replace by note rock mass; Test shorter mention is to the impact on slip casting Diffusion Law and reinforcement mechanism of ground stress environment and groundwater environment, and more leisure opinion is by the three-dimensional ground stress field of noting residing for the rock mass hydrogeological condition with complexity.Analogue substantial deviation, by note rock mass state, is difficult to obtain scientific knowledge to slip casting process, can not the appropriate design of guide Grouting engineering.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, providing a kind of and loading three-dimensional ground stress, the slip casting model test apparatus of pore water pressure and test method.
For achieving the above object, the present invention adopts following technical proposals:
A kind of three-dimensional slip casting model test apparatus, comprises first, second, third reaction plate that vertical direction connects successively; Lay confined pressure counter-force chamber between first reaction plate and the second reaction plate, between the second reaction plate and the 3rd reaction plate, lay axial compression servo loading module; Be provided with by note rock mass loading module and confined pressure servo loading module confined pressure counter-force chamber being implemented to confined pressure in described confined pressure counter-force chamber; Described confined pressure counter-force chamber bottom design is pore water pressure load-on module, and described is arranged the sensor of the Changing Pattern for gathering Rock And Soil internal physical field in slip casting process in note rock mass apparatus module, described sensor is connected with data processing module.
The first described reaction plate becomes Φ 660*25mm (i.e. diameter 660mm, high 25mm) disk by high strength alloy steel materials processing.The first described reaction plate circle centre position is drilled with Φ 20mm grouting hole, and fixing mining rapid-acting coupling I, connects grouting equipment; Reaction plate Φ 590mm is circumferentially drilled with 4 symmetrical Φ 20mm fixed orifice I, and fastening screw I is passed; The ring groove I of lower surface processing Φ 500*470*5mm, built-in rubber sealing gasket I.
The second described reaction plate becomes Φ 780*25mm disk by high strength alloy steel materials processing, the cylindrical cushion block of lower surface welding Φ 90*30mm.Second reaction plate and cushion block are drilled with Φ 50mm center pit, and hole wall processes the seal groove I of 5 Φ 60*50*5mm, built-in rubber O-ring seal I.The second described reaction plate Φ 590mm is circumferentially drilled with 4 symmetrical Φ 20mm fixed orifice II, and fastening screw I is passed.The second described reaction plate Φ 700mm is circumferentially drilled with 4 symmetrical Φ 20mm fixed orifice III, and fastening screw II is passed.The ring groove II of the second described reaction plate upper surface processing Φ 500*440*5mm, built-in rubber sealing gasket II.
The 3rd described reaction plate becomes Φ 780*25mm disk by high strength alloy steel materials processing.3rd reaction plate Φ 700mm is circumferentially drilled with 4 symmetrical Φ 20mm fixed orifice IV, and fastening screw II is passed.The 3rd described reaction plate Φ 200mm circumferentially uniform 4 Φ 4mm holes, fixed hydraulic lifting jack.
Described fastening screw is Φ 16mm high-strength bolt, comprises two groups, and often organize 4, first group of fastening screw I connects first, second reaction plate, and second group of fastening screw II connects second, third reaction plate.
Described confined pressure counter-force chamber is become the cylinder of Φ 500*440*600mm by high strength alloy steel materials processing.Confined pressure counter-force top of chamber is processed into step-like, gets out of a predicament or an embarrassing situation as the annular platform of Φ 470*440mm, and is circumferentially evenly drilled with Φ 4mm fixed orifice 18 in Φ 455mm.Described confined pressure counter-force chamber sidewall radial direction is drilled with 8 Φ 4mm fairleads, and sensor lead is passed.Described top, confined pressure counter-force chamber, bottom are placed in first, second reaction plate ring groove I respectively, in II, ensure sealing by fastening screw and rubber gasket.
Described confined pressure servo loading module comprises oil sac, hydraulic control panel I, hydraulic jack I.Described oil sac is hollow, closed circular, is formed according to confined pressure counter-force chamber dimensioned by rubber; Oil sac sidewall reserves sensor lead hole in relevant position.Described hydraulic jack I is connected by high-voltage tube I and separator with oil sac.Described hydraulic control panel I is connected by high-voltage tube I with between hydraulic control panel I, and real-time controlled pressure.
Accompany polytetrafluoroethylene film I between described oil sac and confined pressure counter-force chamber, to reduce friction between the two, prevent oil sac from damaging.
Described axial compression servo loading module comprises hydraulic control panel II, hydraulic jack II, hydraulic jack, force transmission shaft, power transmission cushion block, carrying-infiltration piston.Described hydraulic jack top/bottom part is circumferentially drilled with 4 symmetrical Φ 20mm fixed orifice V at Φ 700mm, is connected with the 3rd reaction plate by set bolt I.Described hydraulic jack II is connected by high-voltage tube II with hydraulic jack.Described hydraulic control panel II is connected by high-voltage tube II with hydraulic jack II, and real-time controlled pressure.Described force transmission shaft is become by high strength alloy steel materials processing, and bottom is by power transmission cushion block and hydraulic jack top contact; Force transmission shaft enters in confined pressure counter-force chamber through the second reaction plate center pit, is connected with carrying-infiltration piston by screw thread; There is boss at 100mm place below force transmission shaft top, ensures reserved water storehouse in confined pressure counter-force chamber.
Described carrying-infiltration piston becomes Φ 440*25mm discoid by high strength alloy steel materials processing, processes the seal groove II of 2 Φ 60*50*5mm, built-in rubber O-ring seal II in sidewall, ensures the sealing between piston and counter-force chamber; Carrying-infiltration piston is circumferentially evenly drilled with 18 Φ 4mm fixed orifice VI at Φ 405mm, utilizes set bolt II to connect by note rock mass carrier module.Radial arrangement 235 Φ 2.5mm water seepage holes in described carrying-infiltration piston.
Described by note rock mass carrier module by carrying rubber bag tank and fixing steel loop is formed.Carrying rubber bag tank is processed into cylindrical shape, and upper and lower periphery is all connected with fixing steel loop, and upper peripheral edge steel loop is circumferentially evenly drilled with Φ 4mm fixed orifice 18 at Φ 455mm, is secured by bolts in confined pressure counter-force top of chamber and gets out of a predicament or an embarrassing situation; Lower periphery steel loop is circumferentially evenly drilled with Φ 4mm fixed orifice 18 at Φ 405mm, is secured by bolts in carrying-infiltration piston.Carrying rubber bag tank sidewall reserves sensor lead hole in relevant position.
Polytetrafluoroethylene film II is accompanied, to reduce friction between the two between described oil sac and carrying rubber bag tank.
Described pore water pressure load-on module comprises water storehouse, water injection hole; Described water storehouse surrounds by carrying-seeping water piston, confined pressure counter-force cavity wall and the second reaction plate; Described water storehouse sidewall radial direction is drilled with Φ 20mm water injection hole, settles mining rapid-acting coupling II in hole, with external constant pressure water supply equipment.
Described data processing module comprises data sampling sensor, lead-in wire sealing and stationary installation, data interpreter and data analysis facilities.Described data sampling sensor comprises soil pressure sensor, seepage pressure sensor, is arranged in by note rock mass inner by lead-in wire sealing and stationary installation.Described lead-in wire sealing and stationary installation comprise that cable seal is clamped, fixation hollow screw rod, sensor holder.Described cable seal is clamped as PG7 type.Described fixation hollow screw rod, through carrying rubber bag tank fairlead, oil sac fairlead and confined pressure counter-force chamber fairlead, be connected, and sensor data cable is drawn through boring pipe by screw thread with sensor holder.Described sensor holder comprises vertical fixator and radial fixator, is processed by steel according to size sensor.Described data interpreter is XL2101G statical strain indicator, and described data analysis facilities is notebook computer.
Utilize the said equipment to carry out three-dimensional slip casting model test method, comprise the following steps:
(1) soil test test is carried out by the basic physical property of note rock mass according to the different hydrogeological condition of the underground works such as mine, tunnel.
(2) composition model pilot system, by fastening screw, the second reaction plate and the 3rd reaction plate are fixed, assemble axial servo loading module, confined pressure servo loading module successively and noted rock mass loading module, fixing carrying rubber bag tank and carrying-infiltration piston.Choosing material of rock and soil is filled in carrying rubber bag tank, wherein can prefabricated crack or shatter belt to simulate realistic operating mode better.Fill in material of rock and soil process and lay soil pressure and seepage pressure sensor and test.
(3), after material is filled, by fastening screw, the first reaction plate and the second reaction plate are fixed;
(4) axial compression and confined pressure is applied successively according to testing program; After reaching designing requirement, utilize seccotine anchor leg cored screw, and utilize cable seal to clamp closed sensor data cable, assembling data acquisition module.
(5) underground water is injected, until reach designing requirement by water injection hole and carrying-infiltration piston to by note rock mass according to testing program;
(6) utilize grouting equipment to implement grouting test to by note rock mass, physical field data in record slip casting process, reach after test design requires and terminate slip casting, close pilot system.
(7) dismantle test unit, take out grouting and reinforcing body and put into the maintenance of maintenance laboratory; Other structures of washing test device, terminate test.
The present invention achieves by hydraulic control system the stability chronicity that three-dimensional ground stress loads, and what in indoor slip casting model test, achieve three-dimensional ground stress field and osmotic pressure field combines applying, and warranty test is carried out condition and more pressed close to real working condition.In addition, can be used to carry out average, heterogeneous rock mass slip casting model test, strong adaptability in device, technical parameter is advanced.
Beneficial effect of the present invention is:
1, achieve three-dimensional ground stress and pore water pressure simulation in indoor slip casting model test, warranty test is carried out condition and is more pressed close to real working condition;
2, can be used to multiple grouting in rock mass diffusion such as simulation homogeneous, heterogeneous body etc. and reinforcement experiment;
3, the stability chronicity of three-dimensional ground stress loading is achieved by hydraulic control system;
4, device adopts high-strength bolt, reaction plate, counter-force chamber clamping with the use of packing washer and cable seal, test unit good airproof performance, and reliability is high;
5, can be buried underground all kinds of detecting element by note rock mass inside, in Real-time Collection slip casting process, the Changing Pattern of Rock And Soil internal physical field, enhances the scientific value of grouting test, is grouting theory research representative basis.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the present invention first reaction plate vertical view;
Fig. 3 is the present invention second reaction plate vertical view;
Fig. 4 is the present invention the 3rd reaction plate vertical view
Fig. 5 is that the present invention carries-seep water piston vertical view;
Fig. 6 is confined pressure counter-force chamber of the present invention sectional drawing.
Wherein, 1-1 first reaction plate, 1-2 grouting hole, 1-3 is mining rapid-acting coupling I, 1-4 fixed orifice I, 1-5 ring groove I, 1-6 rubber gasket I, 2-1 second reaction plate, 2-2 cushion block, 2-3 center pit, 2-4 seal groove I, 2-5 rubber seal I, 2-6 fixed orifice II, 2-7 fixed orifice III, 2-8 ring groove II, 2-9 rubber gasket II, 3-1 the 3rd reaction plate, 3-2 fixed orifice IV, 3-3 hydraulic jack fixed orifice, 4-1 fastening screw I, 4-2 fastening screw II, 5-1 confined pressure counter-force chamber, 5-2 gets out of a predicament or an embarrassing situation, 5-3 gets out of a predicament or an embarrassing situation fixed orifice, 5-4 water injection hole, 5-5 is mining rapid-acting coupling II, 5-6 fairlead, 6-1 grouting equipment, 6-2 constant pressure water supply equipment, 7-1 oil sac, 7-2 hydraulic control panel I, 7-3 hydraulic jack I, 7-4 oil sac fairlead, 7-5 high-voltage tube I, 7-6 separator, 8-1 polytetrafluoroethylene film I, 8-2 polytetrafluoroethylene film II, 9-1 hydraulic control panel II, 9-2 hydraulic jack II, 9-3 hydraulic jack, 9-4 force transmission shaft, 9-5 power transmission cushion block, 9-6 carries-seeps water piston, 9-7 fixed orifice V, 9-8 set bolt I, 9-9 high-voltage tube II, the step-like boss of 9-10, 9-11 water storehouse, 9-12 ring groove, 9-13 fixed orifice VI, 9-14 set bolt I, 9-15 water seepage hole, 9-16 rubber seal II, 10-1 carries rubber bag tank, 10-2 upper peripheral edge fixes steel loop, 10-3 lower periphery fixes steel loop, 11-1 sensor, the sealing of 11-2 lead-in wire and stationary installation, 11-3 data interpreter, 11-4 data analysis facilities, 11-2-1 cable seal is clamped, 11-2-2 fixation hollow screw rod, the vertical fixator of 11-2-3A, the radial fixator of 11-2-3B.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1 and Figure 2, the first reaction plate 1-1 becomes Φ 660*25mm (i.e. diameter 660mm, high 25mm) disk by high strength alloy steel materials processing.First reaction plate circle centre position is drilled with Φ 20mm grouting hole 1-2, cementation is mining rapid-acting coupling I 1-3, connects grouting equipment 6-1; First reaction plate Φ 590mm is circumferentially drilled with 4 symmetrical Φ 20mm fixed orifice I 1-4, and fastening screw I4-1 is passed; The ring groove I 1-5 of the first reaction plate lower surface processing Φ 500*470*5mm, built-in rubber sealing gasket rubber gasket I 1-6.
As shown in Figure 1, Figure 3, the second reaction plate 2-1 becomes Φ 780*25mm disk by high strength alloy steel materials processing, the cylindrical cushion block 2-2 of lower surface welding Φ 90*30mm.Second reaction plate and cushion block home position are drilled with Φ 50mm center pit 2-3, process the seal groove I 2-4 of 5 Φ 60*50*5mm, built-in rubber O-ring seal I 2-5 inside hole wall.Second reaction plate Φ 590mm is circumferentially drilled with 4 symmetrical Φ 20mm fixed orifice II 2-6, and fastening screw I 4-1 is passed; Second reaction plate Φ 700mm is circumferentially drilled with 4 symmetrical Φ 20mm fixed orifice III 2-7, and fastening screw II 4-2 is passed.The ring groove II 2-8 of the second reaction plate upper surface processing Φ 500*440*5mm, built-in glue sealing gasket II 2-9.
As Figure 1 and Figure 4, the 3rd reaction plate 3-1 becomes Φ 780*25mm disk by high strength alloy steel materials processing.3rd reaction plate Φ 700mm is circumferentially drilled with 4 symmetrical Φ 20mm fixed orifice IV 3-2, and fastening screw II 4-2 is passed.3rd reaction plate Φ 200mm is uniform 4 Φ 4mm hydraulic jack fixed orifice 3-3, fixed hydraulic lifting jack 9-3 circumferentially.
As shown in Figure 1, fastening screw is Φ 16mm high-strength bolt, comprise two groups, often organize 4, one group of fastening screw I 4-1 connects the first reaction plate 1-1 and the second reaction plate 2-1 by fixed orifice 1-4,2-6, and two groups of fastening screw II 4-2 connect the second reaction plate 2-1 and the 3rd reaction plate 3-1 by fixed orifice 2-7,3-2.
As shown in Figure 1, confined pressure counter-force chamber 5-1 is become the cylinder of Φ 500*440*600mm by high strength alloy steel materials processing.5-1 top, confined pressure counter-force chamber is processed into step-like, and the 5-2 that gets out of a predicament or an embarrassing situation is the annular platform of Φ 470*440mm, and is circumferentially evenly drilled with Φ 4mm fixed orifice 5-3 18 in Φ 455mm.On the 5-1 sidewall of confined pressure counter-force chamber, radial direction is drilled with 8 Φ 4mm fairlead 5-6, make sensor 11-1 go between through.5-1 top, confined pressure counter-force chamber is placed in the ring groove I 1-5 of the first reaction plate 1-1 lower surface, and bottom is placed in the second reaction plate 2-1 upper surface ring groove II2-8, ensures sealing by fastening screw I 4-1 and rubber gasket 1-6,2-9.
As shown in Fig. 1, Fig. 6, confined pressure servo loading module comprises oil sac 7-1, hydraulic control panel I 7-2, hydraulic jack I 7-3.Described oil sac 7-1 is hollow, closed circular, is formed according to confined pressure counter-force chamber 5-1 dimensioned by rubber; Oil sac 7-1 sidewall reserves sensor lead hole 7-4 in relevant position.Described hydraulic jack I 7-3 is connected by high-voltage tube I 7-5 and separator 7-6 with oil sac 7-1.Be connected by high-voltage tube I 7-5 between hydraulic control panel I 7-2 with hydraulic jack I 7-3, and real-time controlled pressure.
As shown in Fig. 1, Fig. 6, between oil sac 7-1 and confined pressure counter-force chamber 5-1, accompany polytetrafluoroethylene film I, to reduce friction between the two, prevent oil sac from damaging.
As shown in Figure 1, shown in Figure 5, axial compression servo loading module comprises hydraulic control panel II 9-1, hydraulic jack II 9-2, hydraulic jack 9-3, force transmission shaft 9-4, power transmission cushion block 9-5, carrying-infiltration piston 9-6.Circumferentially be drilled with 4 symmetrical Φ 20mm fixed orifice V 9-7 at Φ 700mm bottom hydraulic jack 9-3, be fixed on the 3rd counter-force 3-1 plate top by set bolt I 9-8.Hydraulic jack II 9-2 is connected by high-voltage tube II 9-9 with hydraulic jack 9-3.Hydraulic control panel II 9-1 is connected by high-voltage tube II 9-9 with hydraulic jack II 9-2, and real-time controlled pressure.Force transmission shaft 9-4 is become by high strength alloy steel materials processing, and bottom is contacted with hydraulic jack 9-3 by power transmission cushion block 9-5; Force transmission shaft 9-4 enters in confined pressure counter-force chamber 5-1 through the second reaction plate center pit 2-4, is connected with carrying-infiltration piston 9-6 by screw thread; There is step-like boss 9-10 at 100mm place below force transmission shaft 9-4 top, ensures reserved water storehouse 9-11 in confined pressure counter-force chamber 5-1.Carrying-infiltration piston 9-6 becomes Φ 440*25mm discoid by high strength alloy steel materials processing, processes the seal groove II 9-12 of 2 Φ 60*50*5mm, built-in rubber O-ring seal II9-16, ensure the sealing between piston and counter-force chamber in sidewall; Carrying-infiltration piston 9-6 is circumferentially evenly drilled with 18 Φ 4mm fixed orifice VI 9-13 at Φ 405mm, utilizes set bolt II 9-14 fixing by note rock mass carrier module.Radial arrangement 235 Φ 2.5mm water seepage hole 9-15 in carrying-infiltration piston, are convenient to water in water storehouse 9-11 and penetrate into by note rock mass.
As shown in Fig. 1, Fig. 6, by note rock mass carrier module by carrying rubber bag tank 10-1 and upper peripheral edge fixes steel loop 10-2, lower periphery is fixed steel loop 10-3 and formed.Carrying rubber bag tank 10-1 is processed into cylindrical shape, and upper and lower periphery is all connected with fixing steel loop, and upper peripheral edge steel loop 10-2 is circumferentially evenly drilled with Φ 4mm fixed orifice 18 at Φ 455mm, is secured by bolts in confined pressure counter-force top of chamber and gets out of a predicament or an embarrassing situation; Lower periphery steel loop 10-3 is circumferentially evenly drilled with Φ 4mm fixed orifice 18 at Φ 405mm, is fixed on carrying-infiltration piston 9-6 by bolt 9-14.Carrying rubber bag tank sidewall reserves sensor lead hole 10-4 in relevant position.
As shown in Fig. 1, Fig. 6, between oil sac and carrying rubber bag tank, accompany polytetrafluoroethylene film II8-2, to reduce friction between the two.
As shown in Figure 1, pore water pressure load-on module comprises water storehouse 9-11, water injection hole 5-4, water seepage hole 9-15.Water storehouse is connected with outside constant pressure water supply equipment 6-2 by water injection hole 5-4.Water storehouse 9-11 sidewall radial direction is drilled with Φ 20mm water injection hole 5-4, settles mining rapid-acting coupling II 5-5 in hole, with external constant pressure water supply equipment 6-2.
As shown in Figure 1, data processing module comprises data sampling sensor 11-1, lead-in wire sealing and stationary installation 11-2, data interpreter 11-3 and data analysis facilities 11-4.Data sampling sensor 11-1 comprises soil pressure sensor, seepage pressure sensor, is arranged in by note rock mass inner by lead-in wire sealing and stationary installation 11-2.Lead-in wire sealing and stationary installation 11-2 comprise cable seal and to clamp 11-2-1, fixation hollow screw rod 11-2-2, sensor holder 11-2-3.The cable seal 11-2-1 that clamps is PG7 type.Fixation hollow screw rod 11-2-2, through carrying rubber bag tank fairlead 10-4, oil sac fairlead 7-4 and confined pressure counter-force chamber fairlead 5-6, be connected, and sensor data cable 11-5 is drawn through boring pipe by screw thread with sensor holder 11-2-3.Sensor holder 11-2-3 comprises vertical fixator 11-2-3A and radial fixator 11-2-3B, is processed by steel according to size sensor.Data interpreter 11-3 is XL2101G statical strain indicator, and data analysis facilities 11-4 is notebook computer.
Three-dimensional slip casting model test apparatus using method: carry out soil test test by the basic physical property of note rock mass according to the different hydrogeological condition of the underground works such as mine, tunnel.Composition model pilot system, makes the second reaction plate 2-1 and the 3rd reaction plate 3-1 form framework by fastening screw 4-2, by force transmission shaft 9-4 through the second reaction plate 2-1, and is connected with the piston 9-6 and power transmission cushion block 9-5 that carry-seeps water.Settle in confined pressure counter-force chamber 3-1 and the second reaction plate ring groove 2-8, polytetrafluoroethylene film 8-1, oil sac 7-1, polytetrafluoroethylene film 8-2, carrying rubber bag tank 10-1 is placed with successively in confined pressure counter-force chamber 3-1, guarantee that each several part fairlead aligns, and carrying rubber bag tank 10-1 is fixed on carrying-infiltration piston 9-6.Choosing material of rock and soil is filled in carrying rubber bag tank 10-1, wherein can prefabricated crack or shatter belt to simulate realistic operating mode better.Fill in material of rock and soil process and lay sensor 10-1 and test.First reaction plate 1-1 and the second reaction plate 2-1 is fixed by fastening screw 4-1 after filling by material.Fixed hydraulic lifting jack 9-3 is in the 3rd force transmitting board 3-1 and adjust its height, contact power transmission cushion block, connects hydraulic jack 9-3, hydraulic jack 9-2 and hydraulic control panel 9-1; Connect oil sac 7-1, hydraulic control panel 7-2 and hydraulic jack 7-3, apply axial compression and confined pressure successively according to testing program.After reaching designing requirement, utilize seccotine fixation hollow screw rod 11-2-2, and utilize the cable seal 11-2-1 that clamps to close sensor data cable, connection data interpreter 11-3 with data analysis facilities 11-4.Underground water is injected, until reach designing requirement by water injection hole 5-4 and carrying-infiltration piston water seepage hole 9-15 to by note rock mass according to testing program.Connect grouting equipment 6-1, implement grouting test, physical field data in record slip casting process, reach after test design requires and terminate slip casting, close pilot system.Dismounting test unit, takes out grouting and reinforcing body and puts into the maintenance of maintenance laboratory.Other structures of washing test device, terminate test.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within the scope of protection of the present invention.

Claims (10)

1.一种三维注浆模型试验装置,其特征在于,包括竖直方向相互连接三个圆盘状反力板,自上而下依次为第一、第二及第三反力板;反力板之间放置围压反力腔及轴压伺服加载模块;所述的围压反力腔底部设计为孔隙水压力加载模块,围压反力腔内部安置被注岩体装载模块及围压伺服加载模块;所述的被注岩体装置模块内布置与数据处理模块相连接的传感器。 1. A three-dimensional grouting model test device is characterized in that it comprises three disc-shaped counterforce plates connected to each other in the vertical direction, and is successively the first, second and third counterforce plates from top to bottom; counterforce A confining pressure reaction chamber and an axial pressure servo loading module are placed between the plates; the bottom of the confining pressure reaction chamber is designed as a pore water pressure loading module, and the injected rock mass loading module and confining pressure servo are placed inside the confining pressure reaction chamber. Loading module; a sensor connected to a data processing module is arranged in the injected rock mass device module. 2.根据权利要求1所述的一种三维注浆模型试验装置,其特征在于,所述的第一反力板圆心处钻设与注浆设备连通的注浆孔,下表面加工环形槽I;所述的第二反力板钻设中心孔,孔壁内侧加工密封槽;所述的第二反力板上表面加工环形槽II;所述的第一反力板、第二反力板、第三反力板之间通过两组紧固螺杆固定连接。 2. a kind of three-dimensional grouting model test device according to claim 1, is characterized in that, the grouting hole that is communicated with the grouting equipment is drilled at the center of the circle of the first reaction force plate, and the lower surface processes the annular groove 1 The second reaction force plate is drilled with a central hole, and the inner side of the hole wall is processed with a sealing groove; the upper surface of the second reaction force plate is processed with an annular groove II; the first reaction force plate and the second reaction force plate are and the third reaction force plates are fixedly connected by two sets of fastening screw rods. 3.根据权利要求1所述的一种三维注浆模型试验装置,其特征在于,所述的围压反力腔由高强度合金钢材料加工成圆筒状;所述的围压反力腔顶部加工成台阶状,同底部分别卡在第一反力板及第二反力板环形槽I,II中;所述的围压反力腔侧壁上径向钻设引线孔。 3. A three-dimensional grouting model test device according to claim 1, characterized in that, said confining pressure reaction chamber is processed into a cylindrical shape by high-strength alloy steel; said confining pressure reaction chamber The top is processed into a step shape, and the bottom is respectively stuck in the annular grooves I and II of the first reaction force plate and the second reaction force plate; radial holes are drilled on the side wall of the confining pressure reaction force chamber. 4.根据权利要求1所述的一种三维注浆模型试验装置,其特征在于,所述的围压伺服加载模块包括油囊、液压控制台、液压油缸;所述的油囊侧壁上预留引线孔;所述的液压油缸与油囊通过高压管和分油器连接;所述液压控制台与液压油缸之间通过高压管连接。 4. A three-dimensional grouting model test device according to claim 1, characterized in that, said confining pressure servo loading module includes an oil bag, a hydraulic console, and a hydraulic cylinder; Lead holes are reserved; the hydraulic oil cylinder is connected to the oil bag through a high-pressure pipe and an oil separator; the hydraulic console is connected to the hydraulic oil cylinder through a high-pressure pipe. 5.根据权利要求1所述的一种三维注浆模型试验装置,其特征在于,包括液压控制台、液压油缸、液压千斤顶、传力轴、传力垫块和承载-渗水活塞;所述的液压千斤顶固定在第三反力板顶面;所述的液压控制台与液压油缸通过高压管连接;所述传力轴通过传力垫块与液压油缸接触;所述的传力轴穿过第二反力板中心孔进入到围压反力腔内,连接承载-渗水活塞;所述承载-渗水活塞放射状布置渗水孔。 5. A kind of three-dimensional grouting model test device according to claim 1, is characterized in that, comprises hydraulic console, hydraulic oil cylinder, hydraulic jack, power transmission shaft, power transmission pad and bearing-water seepage piston; The hydraulic jack is fixed on the top surface of the third reaction plate; the hydraulic console is connected to the hydraulic cylinder through a high-pressure pipe; the power transmission shaft is in contact with the hydraulic cylinder through a force transmission pad; the power transmission shaft passes through the The central hole of the two counter force plates enters into the confining pressure counter force chamber and is connected with the bearing-water seepage piston; the load-water seepage piston radially arranges water seepage holes. 6.根据权利要求5所述的一种三维注浆模型试验装置,其特征在于,所述的孔隙水压力加载模块包括储水仓、注水孔;所述的储水仓由承载-渗水活塞、围压反力腔内壁和第二反力板围成;所述的储水仓侧壁钻设注水孔。 6. A kind of three-dimensional grouting model test device according to claim 5, characterized in that, said pore water pressure loading module comprises a water storage bin and a water injection hole; The inner wall of the cavity is surrounded by the second reaction plate; the side wall of the water storage tank is drilled with a water injection hole. 7.根据权利要求1所述的一种三维注浆模型试验装置,其特征在于,所述的被注岩体承载模块包括承载橡胶囊及固定钢环;所述的承载橡胶囊顶、底端通过固定钢环固定在第一反力板和承载-渗水活塞上;所述的承载橡胶囊侧壁预留传感器引线孔。 7. A kind of three-dimensional grouting model test device according to claim 1, characterized in that, said injected rock mass load-bearing module comprises a load-bearing rubber bladder and a fixed steel ring; said load-bearing rubber bladder top and bottom end It is fixed on the first reaction force plate and the bearing-water seepage piston through the fixing steel ring; the sensor lead hole is reserved on the side wall of the bearing rubber bag. 8.根据权利要求1、或4、或7所述的一种三维注浆模型试验装置,其特征在于,所述的油囊与围压反力腔之间聚四氟乙烯薄膜;所述的油囊与承载橡胶囊之间夹有聚四氟乙烯薄膜。 8. A kind of three-dimensional grouting model test device according to claim 1, or 4, or 7, characterized in that, the polytetrafluoroethylene film between the oil bag and the confining pressure reaction chamber; A polytetrafluoroethylene film is clamped between the oil bag and the bearing rubber bag. 9.根据权利要求1所述的一种三维注浆模型试验装置,其特征在于,所述的数据处理模块包括数据解译器和数据分析设备,所述的数据采集传感器通过引线与数据解译器相连,所述的数据解译器与数据分析设备相连。 9. A kind of three-dimensional grouting model test device according to claim 1, characterized in that, said data processing module comprises a data interpreter and a data analysis device, and said data acquisition sensor is interpreted through leads and data The device is connected, and the data interpreter is connected with the data analysis equipment. 10.一种三维注浆模型试验方法,其特征在于,包括以下步骤: 10. A three-dimensional grouting model test method, is characterized in that, comprises the following steps: 步骤(1) 根据矿山、隧道等地下工程不同水文地质条件进行土工试验测试被注岩体基本物理性质; Step (1) Conduct geotechnical tests to test the basic physical properties of the injected rock mass according to different hydrogeological conditions of underground projects such as mines and tunnels; 步骤(2) 组装模型试验系统,通过紧固螺杆将第二反力板和第三反力板固定,依次组装轴向伺服加载模块、围压伺服加载模块以及被注岩体装载模块,固定承载橡胶囊和承载-渗水活塞;选取岩土体材料充填入承载橡胶囊内,其中可预制裂隙或破碎带以更好地模拟符合实际工况;填充岩土体材料过程中安放土压力及渗透压力传感器并测试; Step (2) Assemble the model test system, fix the second reaction force plate and the third reaction force plate by fastening the screw, assemble the axial servo loading module, the confining pressure servo loading module and the injected rock mass loading module in sequence, and fix the load Rubber bladder and load-bearing-seepage piston; select rock and soil materials to fill into the load-bearing rubber bladder, in which cracks or broken zones can be prefabricated to better simulate actual working conditions; earth pressure and seepage pressure are placed in the process of filling rock and soil materials sensor and test; 步骤(3) 材料填充完毕后,通过紧固螺杆将第一反力板和第二反力板固定; Step (3) After the material is filled, fix the first reaction plate and the second reaction plate by tightening the screw; 步骤(4) 根据试验方案依次施加轴压和围压;达到设计要求后,利用强力胶固定引线空心螺杆,并利用电缆密封夹紧接头封闭传感器数据线,组装数据采集模块; Step (4) Apply axial pressure and confining pressure sequentially according to the test plan; after meeting the design requirements, use super glue to fix the lead hollow screw, and use the cable sealing clamping joint to close the sensor data line, and assemble the data acquisition module; 步骤(5) 根据试验方案通过注水孔和承载-渗水活塞向被注岩体内注入地下水,直至达到设计要求; Step (5) Inject groundwater into the injected rock body through the water injection hole and the bearing-seepage piston according to the test plan until the design requirements are met; 步骤(6) 利用注浆设备向被注岩体内实施注浆试验,记录注浆过程中物理场数据,达到试验设计要求后结束注浆,关闭试验系统; Step (6) Use the grouting equipment to perform a grouting test into the injected rock body, record the physical field data during the grouting process, end the grouting after meeting the test design requirements, and close the test system; 步骤(7) 拆卸试验装置,取出注浆加固体放入养护实验室养护;清洗试验装置其他结构,结束试验。 Step (7) Disassemble the test device, take out the grouting reinforcement and put it in the maintenance laboratory for curing; clean the other structures of the test device, and end the test.
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