A kind of multifunction seepage experimental apparatus
Technical field
The present invention relates to a kind of experimental provision, especially a kind of multifunction seepage experimental apparatus that is applicable to measure the infiltration coefficient under different materials and different angle.
Background technology
The continuous innovation of experimental facilities and technology has promoted rock-soil mechanics and hydromechanical fast development.A lot of experts and scholar are devoted to seepage flow and for rock mass, affect the research of aspect, and designed the various experimental facilities of kind, but these equipment majorities are vertical placements, can be accurately, the efficient seepage flow situation of water in certain length material layer of measuring, and obtain the parameters such as hydraulic gradient and seepage pressure, but the order of accuarcy of experiment is subject to the restriction that material layer is filled degree of uniformity, and the seepage force cannot measure different angle time, also cannot measure the composite cementation penetration effect of different-grain diameter material layer simultaneously, more cannot simulated formation osmotic effect, therefore, be necessary to design a kind of experimental provision that can measure the infiltration coefficient under different materials and different angle.
Summary of the invention
The object of the invention is for problems of the prior art, provide a kind of simple in structure, test accurately, can measure different materials at the multifunction seepage experimental apparatus of different angle seepage force.
For achieving the above object, multifunction seepage experimental apparatus of the present invention, comprise a telescopic tripod, tilt to be located at the U-steel on tripod, the lower port place that U-steel inclines is provided with baffle plate, on baffle plate, be furnished with some water seepage holes, U-steel open surface is established poly (methyl methacrylate) plate, the spaced apart row's pressure measurement circular hole that is carved with on machine glass plate, on each pressure measurement circular hole, be equipped with the L-type water pipe of an angle rotatable, L-type water pipe changes rotational angle with U-steel angle, all the time perpendicular with surface level, the length of L-type water pipe constantly lengthens with U-steel pitch angle direction; The sand packing into from upper port is housed in U-steel, and described U-steel middle part downside is provided with the limited post being fixed on tripod.
The horizontal sextant angle that described inclination is located at the U-steel on tripod is 30~60 °; Described limited post cross section is rectangle; The diameter of pressure measurement circular hole is 1cm.
Beneficial effect: the present invention can carry out the seepage flow situation of different materials under differing tilt angles intuitively, for the research of permeation fluid mechanics aspect provides experiment basis.The length of tripod can free adjustment, realizes the continuous variation of U-steel and horizontal plane angle, to test water colunm height corresponding to different angles and seepage force.From upper port water filling, make water seepage flow in experiment material, and final water seepage hole outflow from bottom section, the speed that current are oozed out in control top water filling and bottom is even, just can obtain the different head height in L-type water pipe.Can the infiltration situation under different angle carry out measuring to different materials, have more promotional value.Its compact conformation, cost is lower, and result of use is good, has practicality widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is poly (methyl methacrylate) plate structural representation of the present invention;
Fig. 3 is upper port direction structure view of the present invention;
Fig. 4 is baffle plate direction structure view of the present invention.
In figure: 1, U-steel, 2, poly (methyl methacrylate) plate, 3, limited post, 4, pressure measurement circular hole, 5, L-type water pipe, 6, tripod, 7, upper port, 8, baffle plate, 9, water seepage hole, 10, sand.
Embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Multifunction seepage experimental apparatus of the present invention, mainly by testing and support two parts, form, support section comprises a telescopic tripod 6, experimental section comprises that inclination is located at the U-steel 1 on tripod 6, the horizontal sextant angle that tilts to be located at the U-steel 1 on tripod 6 is 30~60, along with the continuous variation of tripod 6 height, realize horizontal sextant angle and constantly change from 30~60 °; The lower port place of described U-steel 1 is provided with baffle plate 8, is furnished with some water seepage holes 9 on baffle plate 8, and U-steel 1 open surface is established poly (methyl methacrylate) plate 2, and U-steel 1 coincide with the size of poly (methyl methacrylate) plate 2, cemented together and sealing is good, forms rectangular parallelepiped experiment container.The spaced apart row's pressure measurement circular hole 4 that is carved with on machine glass plate 2, the diameter of pressure measurement circular hole 4 is 1cm, on each pressure measurement circular hole 4, be all connected with the L-type water pipe 5 of an angle rotatable, L-type water pipe 5 changes rotational angle with U-steel 1 angle, all the time perpendicular with surface level, the length of L-type water pipe 5 constantly lengthens with U-steel 1 pitch angle direction, and L-type water pipe 5 is provided with O-ring seal with pressure measurement circular hole 4 junctions; The experiment material sand 10 packing into from upper port 7 is housed in U-steel 1, and described U-steel 1 middle part downside is provided with the limited post 3 being fixed on tripod 6, and limited post 3 cross sections are rectangle.The length of described tripod 6 can free adjustment, realizes the continuous variation of U-steel 1 and horizontal plane angle, to test water colunm height corresponding to different angles and seepage force.
Can be according to different experiments need to set different structural parameters, for example: selected described U-steel 1 is long is 3m, cross section is long is 20cm, wide is 10cm, described poly (methyl methacrylate) plate 2 adapts with U-steel 1, its long for 3m, wide be 20cm, the thick 1cm of being, the cementing open surface at U-steel is realized excellent sealing, form a rectangular parallelepiped experiment container, cross section, experiment container top is open, bottom section arranges baffle plate 8 sealings, and baffle plate 8 above even hollow out has the water seepage hole 9 that 4 row's diameters are 5mm, the inner experiment material 10 needing of filling of experiment container; Described limited post 3 is that cross section is the steel bar of rectangle, and upper end is welded on the side of U-steel 1, and insert in the center pit of tripod 6 pallets lower end; Described L-type water pipe diameter is 9mm, has certain rigidity, is fixed on each pressure measurement circular hole 4, and upwards, connector place has good sealing to water pipe head erect.
During work, from upper port 7 water fillings, make water seepage flow in experiment material 10, and flow out in final water seepage hole 9 from lower port baffle plate 8, the speed that the water injection rate of control port and lower port baffle plate 8 ooze out current is even, just can obtain the different head height in L-type water pipe 5.Can realize intuitively to different materials the permeability test under different angle, obtain comparatively real material layer infiltration coefficient, for permeating mechanics study and the emulation of stratum permeability energy, provide basis, for stability of slope Journal of Sex Research provides experimental basis.