CN210166272U - Device for simulating development condition of crack pipeline in karst region - Google Patents
Device for simulating development condition of crack pipeline in karst region Download PDFInfo
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- CN210166272U CN210166272U CN201920652244.6U CN201920652244U CN210166272U CN 210166272 U CN210166272 U CN 210166272U CN 201920652244 U CN201920652244 U CN 201920652244U CN 210166272 U CN210166272 U CN 210166272U
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Abstract
The utility model discloses a simulation karst area crack pipeline condition of development device, the device is through the PVC steel wire hose simulation karst area underground crack pipeline condition of development of different aperture sizes, the influence that has the crack pipeline under different degrees of development (aperture size change) influence of different bending degree (bending coefficient) to karst area soil leakage and material migration has been simulated, karst area earth's surface-underground binary space water and soil process monitoring microcell has been established, through indoor artificial rainfall experiment, the influence of analysis underground crack pipeline condition of development to leakage and material migration reveals the coupling relation of underground crack pipeline hydrology process and material migration process in the space.
Description
Technical Field
The utility model belongs to the technical field of hydrology, ecology, soil leakage and soil and water conservation, concretely relates to simulation karst area crack pipeline condition of development device, the device can be used to the production practice of direct guidance karst district high efficiency utilization limited water resource, provides the scientific foundation for the consolidation of karst area stony desertification improvement achievement and the sustainable use of soil.
Background
The karst area has unique karst effect to form a ground surface-underground binary space structure, under the synergistic effect of natural factors and human factors, the karst ground surface is in a stony desertification landscape with discontinuous soil cover, shallow soil layer and even large-area bedrock exposed, and the underground karst ground surface forms cracks, dissolving pipes, funnels, vertical shafts, water falling holes, dissolving caves and the like under the dissolving effect of carbonate rock (limestone). The karst area has a special 'binary' structure and porous medium characteristics, so that soil can be taken away by runoff flowing in shallow hole (crack) gaps, pipelines and funnels in the rainfall process, and the 'soil leakage' phenomenon is caused. The karst region water and soil loss process is complex, water, soil and nutrient substances are lost along with surface runoff, and the water, soil and nutrient substances are leaked to the underground along karst cracks, pipelines, water falling holes and the like, so that how to monitor the underground leakage and substance migration process of the karst region becomes a problem to be solved urgently.
Because the total amount of soil in the karst region is limited, the capacity of conserving water sources is low, holes (cracks) in shallow layers develop, the atmospheric precipitation part generates slope flow on a slope surface, part of the atmospheric precipitation part vertically infiltrates along the soil in the karst aeration zone, a surface karst zone and a conveyor belt carrying nutrient substances, and enters an underground system at a low-lying position through a pipeline, a water falling hole and the like, so that underground water in the karst region is easily polluted and is difficult to treat, and the karst water quality degradation is aggravated. Under the background, the key scientific problems of selecting which hydrological path and through which hydrologic driving mechanism the soil and nutrient substances in underground fissure karst pipelines need to be deeply researched.
At present, the device for simulating the underground structure development condition of the karst region still stays on the basis of simple generalized simulation, the underground fractured pipeline development condition is concentrated on the condition of single fracture degree, the bending complexity of the fractured pipeline is rarely involved, the researches are mainly concentrated on the current situation, the mechanism and the conceptual model of underground water and soil loss, and the coupling research on water and soil loss and nutrient migration from the three-dimensional visual angles of the earth surface and the underground is lacked. Due to the reasons of complexity and concealment of the underground crack pipeline development in the karst region and the like, a device for simulating the crack pipeline development in the karst region is urgently needed.
Disclosure of Invention
Based on the prior art, the utility model provides a simulation karst area crack pipeline condition of development device, the device simple structure can simulate the crack condition of development under the multiple control condition, still can collect different crack pipeline development soil leakage quantity and solute migration volume down, explores the perpendicular seepage process in underground of karst area soil, establishes the basis for systematic study underground crack pipeline soil migration and ecological environment effect, provides the scientific countermeasure for karst area stony desertification is administered.
Realize the utility model discloses the technical scheme that above-mentioned purpose adopted does:
a device for simulating the development condition of a crack pipeline in a karst region comprises two first supporting piers, two second supporting piers, a karst landform model, an underground flow guide assembly, a water receiving barrel and sampling bottles, wherein the first supporting piers and the second supporting piers are fixed on the ground, the karst landform model comprises a soil containing groove, the soil containing groove is obliquely arranged, the top of the soil containing groove is connected with the first supporting piers, the bottom of the soil containing groove is connected with the second supporting piers, a plurality of simulation bedrocks are sequentially arranged at the bottom of the soil containing groove from bottom to top, the simulation bedrocks separate the inner space of the soil containing groove, soil is filled in the soil containing groove, all the simulation bedrocks are covered by soil, a pre-buried pipe is arranged in the middle of the bottom of each simulation bedrock, a gauze is filled in each pre-buried pipe, a plurality of rows of reserved holes are arranged at the bottom of the soil containing groove from top, the number of the reserved holes is equal to the number of the simulation bedrocks, each row of preformed holes are positioned above the bottom of the corresponding simulation bedrock, the inlet of the underground flow guide assembly is respectively connected with the corresponding preformed holes in each row of preformed holes, the outlet of the underground flow guide assembly is positioned right above the sampling bottle, the soil surface layer is positioned at the bottom of the soil containing groove and is provided with a surface runoff water guide pipe, the lower end of the surface runoff water guide pipe is connected with a surface runoff water guide pipe, the lower end of the surface runoff water guide pipe is positioned above the corresponding water receiving bucket, the bottom of the soil containing groove is provided with a rock-soil interface flow water guide pipe, the lower end of the rock-soil interface flow water guide pipe is connected with a rock-soil interface flow water guide pipe, and the lower end of the rock-soil interface flow water guide pipe.
Multirow preformed hole is equidistant to be arranged, and every row of preformed hole is formed by a plurality of preformed hole groups are equidistant, and every preformed hole group comprises equidistant first preformed hole, second preformed hole and the third preformed hole of arranging, and the diameter of first preformed hole, second preformed hole and third preformed hole increases in proper order, and first preformed hole, second preformed hole and third preformed hole arrange in proper order.
The underground drainage component comprises a flow guide pipe component and a bent pipe shaping frame, the flow guide pipe component and the bent pipe shaping frame are multiple, the flow guide pipe component comprises a first flow guide bent pipe group, a straight flow guide pipe group and a second flow guide bent pipe group which are sequentially arranged, the first flow guide bent pipe group, the straight flow guide pipe group and the second flow guide bent pipe are equidistantly arranged, each row of preformed holes comprise a plurality of preformed hole components which are equidistantly arranged, each preformed hole component comprises three preformed hole groups which are equidistantly arranged, the number of the flow guide pipe component is equal to the product of the number of the preformed hole components and the number of the preformed hole groups, the first flow guide bent pipe group, the straight flow guide pipe group and the second flow guide bent pipe group in each flow guide pipe component are respectively connected with the three preformed hole groups of the corresponding preformed hole components, the number of the bent pipe shaping frame is equal to the sum of the numbers of the first flow guide bent pipe group and the second flow guide bent pipe group, the bent pipe shaping, The device comprises three vertical rods and a supporting plate, wherein the base is fixed on the ground, the three supporting rods are distributed in a straight line, the lower ends of the three vertical rods are connected with the base, the supporting plate is fixed on the three vertical rods and horizontally arranged, a plurality of sampling bottles are arranged on each supporting plate, the rest sampling bottles are arranged on the ground, a first diversion elbow group is composed of a first diversion elbow A, a first diversion elbow B and a first diversion elbow C, the bending coefficients of the first diversion elbow A, the first diversion elbow B and the first diversion elbow C are the same, the diameters of the first diversion elbow A, the first diversion elbow B and the first diversion elbow C are sequentially increased, the diameters of the first diversion elbow A and a first reserved hole are the same, the diameters of the first diversion elbow B and a second reserved hole are the same, the diameters of the first diversion elbow C and a third reserved hole are the same, and the first diversion elbow A, the second elbow B and the third reserved hole are the same in each first elbow group, The upper ends of a first diversion elbow pipe B and a first diversion elbow pipe C are respectively connected with a first preformed hole, a second preformed hole and a third preformed hole of a corresponding preformed hole group, the first diversion elbow pipe A, the first diversion elbow pipe B and the first diversion elbow pipe C in each first diversion elbow pipe group are respectively wound on three vertical rods of a corresponding elbow pipe shaping frame, the lower ends of the first diversion elbow pipe A, the first diversion elbow pipe B and the first diversion elbow pipe C in each first diversion elbow pipe group are respectively positioned right above three sampling bottles on a corresponding supporting plate, each diversion straight pipe group is composed of a diversion straight pipe A, a diversion straight pipe B and a diversion straight pipe C, the lengths of the diversion straight pipe A, the diversion straight pipe B and the diversion straight pipe C are the same, the diameters of the diversion straight pipe A, the diversion pipe B and the diversion straight pipe C are sequentially increased, the diameters of the diversion straight pipe A and the first preformed hole are the same, the diameters of the diversion straight pipe B and the second preformed hole are the same, the diameters of the diversion straight pipes C and the third reserved holes are the same, the upper ends of the diversion straight pipes A, the diversion straight pipes B and the diversion straight pipes C in each diversion straight pipe group are respectively connected with the first reserved holes, the second reserved holes and the third reserved holes of the corresponding reserved hole groups, the lower ends of the diversion straight pipes A, the diversion straight pipes B and the diversion straight pipes C in each diversion straight pipe group are respectively positioned right above the corresponding sampling bottles, the second diversion elbow group is composed of a second diversion elbow A, a second diversion elbow B and a second diversion elbow C, the bending coefficients of the second diversion elbow A, the second diversion elbow B and the second diversion elbow C are the same, the bending coefficient of the first diversion elbow A is smaller than that of the second diversion elbow A, the diameters of the second diversion elbow A, the second diversion elbow B and the second diversion elbow C are sequentially increased, and the diameters of the second diversion elbow A and the first reserved holes are the same, the diameters of the second diversion elbow pipe B and the second reserved hole are the same, the diameters of the second diversion elbow pipe C and the third reserved hole are the same, the upper ends of the second diversion elbow pipe A, the second diversion elbow pipe B and the second diversion elbow pipe C in each second diversion elbow pipe group are respectively connected with the first reserved hole, the second reserved hole and the third reserved hole of the corresponding reserved hole group, the second diversion elbow pipe A, the second diversion elbow pipe B and the second diversion elbow pipe C in each second diversion elbow pipe group are respectively wound on three vertical rods of the corresponding elbow shaping frame, and the lower ends of the second diversion elbow pipe A, the second diversion elbow pipe B and the second diversion elbow pipe C in each second diversion elbow pipe group are respectively positioned right above three sampling bottles on the corresponding supporting plate.
The plurality of simulated bedrocks are arranged at equal intervals, the cross section of each simulated bedrock is trapezoidal, and the straight line where each row of the reserved holes are located is parallel to the bottom surface of each simulated bedrock.
The included angle between the bottom of the soil containing groove and the horizontal plane is 15 degrees, the bottom of the soil containing groove is square, and the bottom surface of the simulated bedrock is parallel to the edge of the width direction of the bottom of the soil containing groove.
The top of the soil containing groove is erected on the top of the first support pier stud, the bottom of the soil containing groove is erected on the top of the second support pier stud, and the surface runoff aqueduct and the rock-soil interface flow aqueduct respectively penetrate through the top of the second support pier stud.
And a pipeline switch is arranged on each embedded pipe close to the outlet end.
Compared with the prior art, the beneficial effects and advantages of the utility model reside in that:
1. the device holds soil tank bottom and sets up the preformed hole in three kinds of different apertures to connect the transparent hose of steel wire (still divide into straight tube and return bend simultaneously) according to the diameter of preformed hole for simulate secret crack development condition, degree of curvature and aperture size are considered to the crack form, can reach the crack development condition under the simulation multiple control condition, and pre-buried pipe can realize through opening and shutting of switch that there is the underground crack or not, can also realize different crack rates through the closure part.
2. The device founds simply, adopts reinforced concrete to build, but reuse, and inside comprises brick bed rock, can dismantle, can mould the bed rock situation of fluctuation according to different situation, can also build the karst landform model that has different scales under the different slopes according to particular case, has nimble versatility and nature directly perceived.
3. The device has simulated the influence to soil leakage and material migration under different aperture sizes of the cracked pipeline under the different developmental conditions and different crooked degrees, have the intuition nature, high-efficient succinct, the key problem of the unable simulation karst region underground crack pipeline developmental conditions under the prior art has been solved, compared with the prior art, this technical scheme more focuses on the condition of cracked pipeline under different crooked degrees, the cracked pipeline development has synthesized the influence to soil leakage and material migration under the multiple condition, be not in the single condition device of simulating karst region underground crack pipeline crack rate through the bottom plate trompil that restricts.
4. The device can collect soil leakage and solute transport under different fissure pipeline developments, explores the perpendicular seepage process in karst region soil's underground, establishes the basis for systematic study underground fissure pipeline soil migration and ecological environment effect, provides scientific countermeasure for karst region stony desertification is administered.
Drawings
FIG. 1 is a schematic structural diagram of a device for simulating the development condition of underground fissure pipelines in karst regions.
Fig. 2 is a schematic diagram of the internal structure of the karst landform model.
Fig. 3 is a schematic structural view of a draft tube assembly.
Wherein, 1-second supporting pier stud, 2-soil containing groove, 3-simulated bedrock, 4-soil, 5-pre-buried pipe, 6-first diversion bend A, 7-first diversion bend B, 8-pipeline switch, 9-sampling bottle, 10-vertical rod, 11-surface runoff water guide pipe, 12-surface runoff water guide pipe, 13-base, 14-rock-soil interface flow water guide pipe, 15-rock-soil interface flow water guide pipe, 16-first supporting pier stud, 17-first diversion bend C, 18-first reserved hole, 19-second reserved hole, 20-third reserved hole, 21-diversion straight pipe A, 22-diversion straight pipe B, 23-diversion straight pipe C, 24-second diversion bend A, 25-second diversion bend B, 26-a second diversion elbow C, 27-a water receiving bucket and 28-a supporting plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The utility model provides a simulation karst region underground crack pipeline condition of development device's structure is shown in FIG. 1, and first pier stud 16, the second of supporting support pier stud 1, karst landform model, secret water conservancy diversion subassembly, water receiving bucket 27 and sampling bottle. The water receiving barrels are two.
First support pier stud 16 and second support pier stud 1 are piled up by the brick and are formed, and the height of first support pier stud is 173cm, and the height of second support pier stud is 100 cm.
As shown in fig. 2, the karst landform model includes a soil accommodating groove 2, the soil accommodating groove 2 is formed by pouring reinforced concrete, in the embodiment, the bottom of the soil accommodating groove 2 is square, the length of the bottom of the soil accommodating groove is 300cm, the width of the bottom of the soil accommodating groove is 150cm, the thickness of the bottom of the soil accommodating groove is 10cm, and the thickness of the side wall of the soil accommodating groove is 5 cm. The soil containing groove 2 is obliquely arranged, and in the embodiment, the included angle between the bottom of the soil containing groove and the horizontal plane is 15 degrees. Flourishing soil box 2 top erects on first support pier stud 16 top, and flourishing soil box 2 bottom erects on second support pier stud 1 top for flourishing soil box is raised from ground.
2 tank bottoms from the bottom up in flourishing soil box are equipped with a plurality of equidistant range simulation bedrocks 3 in proper order, and a plurality of simulation bedrocks 3 will flourish soil box inner space and separate, and in this embodiment, the simulation bedrock has threely. The simulated bedrock 3 is formed by piling bricks, the cross section of the simulated bedrock 3 is trapezoidal, the top surface and the bottom surface of the simulated bedrock 3 are both square, in the embodiment, the width of the top surface of the simulated bedrock is 5cm, the width of the bottom surface of the simulated bedrock is 33cm, and the height of the vertical bottom surface of the simulated bedrock is 40 cm. The soil containing groove 2 is filled with soil 4, all the simulated bedrocks 3 are covered by the soil 4, and in the embodiment, the thickness of the soil is 45 cm.
The middle of the bottom of each simulation bedrock 3 is provided with a pre-buried pipe 5, each pre-buried pipe 5 is filled with a gauze, a pipeline switch 8 is arranged at the position, close to the outlet, of each pre-buried pipe 5, in the embodiment, the pre-buried pipes are PVC pipes, the length of each pre-buried pipe is 43cm, and the diameter of each pre-buried pipe is 5 cm.
Supreme preformed hole that is equipped with multirow equidistant range is followed to 2 tank bottoms in flourishing soil box, and each row of preformed hole is located the top of the 3 bottoms in simulation basement rock that correspond, and in this embodiment, the preformed hole has 3 rows, and one row of preformed hole of the below is 60cm apart from the border of the width direction that flourishing soil box tank bottom is located the bottom, and the middle one row of preformed hole is 140cm apart from the border of the width direction that flourishing soil box tank bottom is located the bottom, and the one row of preformed hole of the top is 220cm apart from the border of the width direction that flourishing soil box tank bottom is located the bottom.
Each row of preformed holes consists of a plurality of preformed hole components which are arranged at equal intervals, each preformed hole component consists of three preformed hole groups which are arranged at equal intervals, and in the embodiment, each row of preformed holes consists of 1 preformed hole component. Every group preformed hole comprises first preformed hole 18, second preformed hole 19 and the third preformed hole 20 of equidistant range, and the diameter of first preformed hole 18, second preformed hole 19 and third preformed hole 20 increases in proper order, and first preformed hole 18, second preformed hole 19 and third preformed hole 20 arrange in proper order. In this embodiment, each row of preformed holes is formed by 3 preformed hole groups, and the diameters of the first preformed hole, the second preformed hole and the third preformed hole are 1cm, 2cm and 5cm respectively.
The underground drainage subassembly includes that honeycomb duct subassembly and return bend are stereotyped and are put up, and honeycomb duct subassembly and return bend are stereotyped and put up and all have a plurality ofly, and in this embodiment, the honeycomb duct subassembly has 3, and the return bend is stereotyped and is put up and have 6.
The bent pipe shaping frame comprises a base 13, three vertical rods 10 and a supporting plate 28, wherein the base 13 is fixed on the ground, the three supporting rods 10 are linearly distributed, the lower ends of the three vertical rods 10 are connected with the base 13, the supporting plate 28 is fixed on the three vertical rods 10, and the supporting plate 28 is horizontally arranged.
The sampling bottle has a plurality ofly, places three sampling bottle 9 on each layer board 28, and remaining sampling bottle 9 places on the ground. In this embodiment, there are 27 sample bottles.
The flow guide pipe assembly comprises a first flow guide bent pipe assembly, a flow guide straight pipe assembly and a second flow guide bent pipe assembly which are sequentially arranged, the first flow guide bent pipe assembly, the flow guide straight pipe assembly and the second flow guide bent pipe assembly are arranged at equal intervals, and the first flow guide bent pipe assembly, the flow guide straight pipe assembly and the second flow guide bent pipe assembly in each flow guide pipe assembly are respectively connected with three reserved hole sets of corresponding reserved hole assemblies.
The first diversion elbow group is composed of a first diversion elbow a6, a first diversion elbow B7 and a first diversion elbow C17, in this embodiment, the first diversion elbow a6, the first diversion elbow B7 and the first diversion elbow C17 are all PVC steel wire transparent hoses, the bending coefficients of the first diversion elbow a6, the first diversion elbow B7 and the first diversion elbow C17 (the bending coefficient is equal to the actual length of the diversion pipe/the linear length of the diversion pipe) are all 1.5, the diameter of the first diversion elbow a6 is 1cm, the diameter of the first diversion elbow B7 is 2cm, and the diameter of the first diversion elbow C17 is 5 cm. The upper ends of a first diversion elbow A6, a first diversion elbow B7 and a first diversion elbow C17 in each first diversion elbow group are respectively connected with a first preformed hole 18, a second preformed hole 19 and a third preformed hole 20 of a corresponding preformed hole group and sealed by silicone adhesive, a first diversion elbow A6, a first diversion elbow B7 and a first diversion elbow C17 in each first diversion elbow group are respectively wound on three vertical rods 10 of a corresponding elbow shaping frame, and the lower ends of a first diversion elbow A6, a first diversion elbow B7 and a first diversion elbow C17 in each first diversion elbow group are respectively positioned right above three sampling bottles 9 on a corresponding supporting plate 28. In this embodiment, taking the first diversion bend a6 as an example, the linear distance between the lower end of the first diversion bend a and the upper end thereof is 80 cm.
The diversion straight pipe group comprises a diversion straight pipe A21, a diversion straight pipe B22 and a diversion straight pipe C23, in the embodiment, the diversion straight pipe A21, the diversion straight pipe B22 and the diversion straight pipe C23 are all PVC steel wire transparent hoses, the lengths of the diversion straight pipe A21, the diversion straight pipe B22 and the diversion straight pipe C23 are all 120cm, the diameter of the diversion straight pipe A21 is 1cm, the diameter of the diversion straight pipe B22 is 2cm, and the diameter of the diversion straight pipe C23 is 5 cm. The upper ends of the flow guide straight pipe A21, the flow guide straight pipe B22 and the flow guide straight pipe C23 in each flow guide straight pipe group are respectively connected with the first preformed hole 18, the second preformed hole 19 and the third preformed hole 20 of the corresponding preformed hole group and are sealed through silicone adhesive, the flow guide straight pipe A21, the flow guide straight pipe B22 and the flow guide straight pipe C23 in each flow guide straight pipe group are naturally suspended, and the lower ends of the flow guide straight pipe A21, the flow guide straight pipe B22 and the flow guide straight pipe C23 in each flow guide straight pipe group are respectively positioned right above the corresponding sampling bottle 9.
The second diversion elbow group is composed of a second diversion elbow a24, a second diversion elbow B25 and a second diversion elbow C26, in this embodiment, the second diversion elbow a24, the second diversion elbow B25 and the second diversion elbow C26 are all PVC steel wire transparent hoses, the bending coefficients (the bending coefficient is equal to the actual length of the diversion pipe/the linear length of the diversion pipe) of the second diversion elbow a24, the second diversion elbow B25 and the second diversion elbow C26 are all 2, the diameter of the second diversion elbow a24 is 1cm, the diameter of the second diversion elbow B25 is 2cm, and the diameter of the second diversion elbow C26 is 5 cm. The upper ends of a second diversion elbow A24, a second diversion elbow B25 and a second diversion elbow C26 in each second diversion elbow group are respectively connected with a first preformed hole 18, a second preformed hole 19 and a third preformed hole 20 of a corresponding preformed hole group and sealed by silicone adhesive, a second diversion elbow A24, a second diversion elbow B25 and a second diversion elbow C26 in each second diversion elbow group are respectively wound on three vertical rods 10 of a corresponding elbow shaping frame, and the lower ends of a second diversion elbow A24, a second diversion elbow B25 and a second diversion elbow C26 in each first diversion elbow group are respectively positioned right above three sampling bottles 9 on a corresponding supporting plate 28. In this embodiment, taking the second diversion bend a24 as an example, the linear distance between the lower end and the upper end of the second diversion bend a24 is 60 cm.
The surface layer of the soil 4 is provided with a surface runoff water guide pipe 11 at the bottom of the soil containing groove, the lower end of the surface runoff water guide pipe 11 is connected with a surface runoff water guide pipe 12, and the lower end of the surface runoff water guide pipe 12 is positioned above the corresponding water receiving barrel 27. In the embodiment, the surface runoff aqueduct is a PVC pipe, the length of the PVC pipe is 20cm, and the diameter of the PVC pipe is 5 cm; the surface runoff water conduit is a PVC steel wire transparent hose with the diameter of 5 cm. The bottom of the soil containing groove 2 is provided with a rock-soil interface flow water guide pipe 14, the lower end of the rock-soil interface flow water guide pipe 14 is connected with a rock-soil interface flow water guide pipe 15, and the lower end of the rock-soil interface flow water guide pipe 15 is positioned above the corresponding water receiving bucket 27. In the embodiment, the rock-soil interface flow water conduit is a PVC (polyvinyl chloride) pipe, the length of the PVC pipe is 40cm, and the diameter of the PVC pipe is 5 cm; the rock-soil interface flow water conduit is a PVC steel wire transparent hose with the diameter of 5 cm. The surface runoff aqueduct 11 and the rock-soil interface aqueduct 14 respectively penetrate through the top of the second supporting pier stud 1.
Experiment one the utility model discloses a simulation karst region underground crack pipeline condition of development device's indoor test
The experimental method comprises the following steps:
a portable full-automatic downward-spraying type artificial rainfall device (model: QYJY-501) is adopted for indoor artificial rainfall, for convenience of description, a first diversion elbow pipe A, a first diversion elbow pipe B, a first diversion elbow pipe C, a diversion straight pipe A, a diversion straight pipe B, a diversion straight pipe C, a second diversion elbow pipe A, a second diversion elbow pipe B and a second diversion elbow pipe C are unified into an underground diversion pipe, when the surface runoff water guide pipe, the rock-soil interface flow water guide pipe or the underground diversion pipe of the device starts to produce the flow, 1 time of a sediment sample flowing out of the surface runoff water guide pipe, the rock-soil interface flow water guide pipe and each underground diversion pipe is taken every 10min and respectively arranged in a large barrel marked with scales to measure the production flow, and the sand yield of the device is measured by a drying method.
The test results are shown in the following table:
Claims (7)
1. the utility model provides a simulation karst region crack pipeline condition of development device which characterized in that: the device comprises two first supporting piers, two second supporting piers, a karst geomorphic model, an underground flow guide assembly, a water receiving barrel and sampling bottles, wherein the first supporting piers and the second supporting piers are fixed on the ground, the karst geomorphic model comprises a soil containing groove, the soil containing groove is obliquely arranged, the top of the soil containing groove is connected with the first supporting piers, the bottom of the soil containing groove is connected with the second supporting piers, a plurality of simulation bedrocks are sequentially arranged at the bottom of the soil containing groove from bottom to top, the simulation bedrocks are used for separating the inner space of the soil containing groove, soil is filled in the soil containing groove, all the simulation bedrocks are covered by the soil, a pre-buried pipe is arranged in the middle of the bottom of each simulation bedrock, a gauze is filled in each pre-buried pipe, a plurality of rows of reserved holes are arranged at the bottom of the soil containing groove from top to top, the rows of the reserved holes are equal to the number of the simulation bedrocks, and each row of the reserved holes are positioned above the, the inlet of underground water conservancy diversion subassembly is connected with the preformed hole that corresponds in each row of preformed hole respectively, the export of underground water conservancy diversion subassembly is located the sampling bottle directly over, the soil top layer is located flourishing soil tank bottom department and is equipped with the surface runoff aqueduct, surface runoff aqueduct lower extreme is connected with the surface runoff water pipe, the lower extreme of surface runoff water pipe is located the top of the water receiving bucket that corresponds, flourishing soil tank bottom of the bottom is equipped with ground interface flow water pipe, ground interface flow water pipe lower extreme is connected with ground interface flow water pipe, the lower extreme of ground interface flow water pipe is located the top of the water receiving bucket that corresponds.
2. The device for simulating the development condition of the karst region fissure pipeline as claimed in claim 1, wherein: multirow preformed hole is equidistant to be arranged, and every row of preformed hole is formed by a plurality of preformed hole groups are equidistant, and every preformed hole group comprises equidistant first preformed hole, second preformed hole and the third preformed hole of arranging, and the diameter of first preformed hole, second preformed hole and third preformed hole increases in proper order, and first preformed hole, second preformed hole and third preformed hole arrange in proper order.
3. The device for simulating the development condition of the karst region fissure pipeline as claimed in claim 2, wherein: the underground flow guide assembly comprises a flow guide pipe assembly and a bent pipe shaping frame, the flow guide pipe assembly and the bent pipe shaping frame are multiple, the flow guide pipe assembly comprises a first flow guide bent pipe assembly, a straight flow guide pipe assembly and a second flow guide bent pipe assembly which are sequentially arranged, the first flow guide bent pipe assembly, the straight flow guide pipe assembly and the second flow guide bent pipe assembly are equidistantly arranged, each row of preformed holes comprises a plurality of preformed hole assemblies which are equidistantly arranged, each preformed hole assembly comprises three preformed hole groups which are equidistantly arranged, the number of the flow guide pipe assembly is equal to the product of the number of the preformed hole assemblies and the number of the preformed hole groups, the first flow guide bent pipe assembly, the straight flow guide pipe assembly and the second flow guide bent pipe assembly in each flow guide pipe assembly are respectively connected with the three preformed hole groups of the corresponding preformed hole assemblies, the number of the bent pipe shaping frame is equal to the sum of the numbers of the first flow guide bent pipe assembly and the second flow guide bent pipe assembly, the bent, The device comprises three vertical rods and a supporting plate, wherein the base is fixed on the ground, the three supporting rods are distributed in a straight line, the lower ends of the three vertical rods are connected with the base, the supporting plate is fixed on the three vertical rods and horizontally arranged, a plurality of sampling bottles are arranged on each supporting plate, the rest sampling bottles are arranged on the ground, a first diversion elbow group is composed of a first diversion elbow A, a first diversion elbow B and a first diversion elbow C, the bending coefficients of the first diversion elbow A, the first diversion elbow B and the first diversion elbow C are the same, the diameters of the first diversion elbow A, the first diversion elbow B and the first diversion elbow C are sequentially increased, the diameters of the first diversion elbow A and a first reserved hole are the same, the diameters of the first diversion elbow B and a second reserved hole are the same, the diameters of the first diversion elbow C and a third reserved hole are the same, and the first diversion elbow A, the second elbow B and the third reserved hole are the same in each first elbow group, The upper ends of a first diversion elbow pipe B and a first diversion elbow pipe C are respectively connected with a first preformed hole, a second preformed hole and a third preformed hole of a corresponding preformed hole group, the first diversion elbow pipe A, the first diversion elbow pipe B and the first diversion elbow pipe C in each first diversion elbow pipe group are respectively wound on three vertical rods of a corresponding elbow pipe shaping frame, the lower ends of the first diversion elbow pipe A, the first diversion elbow pipe B and the first diversion elbow pipe C in each first diversion elbow pipe group are respectively positioned right above three sampling bottles on a corresponding supporting plate, each diversion straight pipe group is composed of a diversion straight pipe A, a diversion straight pipe B and a diversion straight pipe C, the lengths of the diversion straight pipe A, the diversion straight pipe B and the diversion straight pipe C are the same, the diameters of the diversion straight pipe A, the diversion pipe B and the diversion straight pipe C are sequentially increased, the diameters of the diversion straight pipe A and the first preformed hole are the same, the diameters of the diversion straight pipe B and the second preformed hole are the same, the diameters of the diversion straight pipes C and the third reserved holes are the same, the upper ends of the diversion straight pipes A, the diversion straight pipes B and the diversion straight pipes C in each diversion straight pipe group are respectively connected with the first reserved holes, the second reserved holes and the third reserved holes of the corresponding reserved hole groups, the lower ends of the diversion straight pipes A, the diversion straight pipes B and the diversion straight pipes C in each diversion straight pipe group are respectively positioned right above the corresponding sampling bottles, the second diversion elbow group is composed of a second diversion elbow A, a second diversion elbow B and a second diversion elbow C, the bending coefficients of the second diversion elbow A, the second diversion elbow B and the second diversion elbow C are the same, the bending coefficient of the first diversion elbow A is smaller than that of the second diversion elbow A, the diameters of the second diversion elbow A, the second diversion elbow B and the second diversion elbow C are sequentially increased, and the diameters of the second diversion elbow A and the first reserved holes are the same, the diameters of the second diversion elbow pipe B and the second reserved hole are the same, the diameters of the second diversion elbow pipe C and the third reserved hole are the same, the upper ends of the second diversion elbow pipe A, the second diversion elbow pipe B and the second diversion elbow pipe C in each second diversion elbow pipe group are respectively connected with the first reserved hole, the second reserved hole and the third reserved hole of the corresponding reserved hole group, the second diversion elbow pipe A, the second diversion elbow pipe B and the second diversion elbow pipe C in each second diversion elbow pipe group are respectively wound on three vertical rods of the corresponding elbow shaping frame, and the lower ends of the second diversion elbow pipe A, the second diversion elbow pipe B and the second diversion elbow pipe C in each second diversion elbow pipe group are respectively positioned right above three sampling bottles on the corresponding supporting plate.
4. The device for simulating the development condition of the karst region fissure pipeline as claimed in claim 2, wherein: the plurality of simulated bedrocks are arranged at equal intervals, the cross section of each simulated bedrock is trapezoidal, and the straight line where each row of the reserved holes are located is parallel to the bottom surface of each simulated bedrock.
5. The device for simulating the development condition of the karst region fissure pipeline as claimed in claim 4, wherein: the included angle between the bottom of the soil containing groove and the horizontal plane is 15 degrees, the bottom of the soil containing groove is square, and the bottom surface of the simulated bedrock is parallel to the edge of the width direction of the bottom of the soil containing groove.
6. The device for simulating the development condition of the karst region fissure pipeline as claimed in claim 1, wherein: the top of the soil containing groove is erected on the top of the first support pier stud, the bottom of the soil containing groove is erected on the top of the second support pier stud, and the surface runoff aqueduct and the rock-soil interface flow aqueduct respectively penetrate through the top of the second support pier stud.
7. The device for simulating the development condition of the karst region fissure pipeline as claimed in claim 1, wherein: and a pipeline switch is arranged on each embedded pipe close to the outlet end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920652244.6U CN210166272U (en) | 2019-05-08 | 2019-05-08 | Device for simulating development condition of crack pipeline in karst region |
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| CN201920652244.6U CN210166272U (en) | 2019-05-08 | 2019-05-08 | Device for simulating development condition of crack pipeline in karst region |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006808A (en) * | 2019-05-08 | 2019-07-12 | 桂林理工大学 | A kind of simulation Karst region crack pipeline developmental state device |
| CN110006808B (en) * | 2019-05-08 | 2024-06-21 | 桂林理工大学 | Device for simulating development condition of crack pipeline in karst region |
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2019
- 2019-05-08 CN CN201920652244.6U patent/CN210166272U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006808A (en) * | 2019-05-08 | 2019-07-12 | 桂林理工大学 | A kind of simulation Karst region crack pipeline developmental state device |
| CN110006808B (en) * | 2019-05-08 | 2024-06-21 | 桂林理工大学 | Device for simulating development condition of crack pipeline in karst region |
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