CN114428033A - Heavy rainfall earth's surface water content early warning monitoring devices - Google Patents
Heavy rainfall earth's surface water content early warning monitoring devices Download PDFInfo
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- CN114428033A CN114428033A CN202210333017.3A CN202210333017A CN114428033A CN 114428033 A CN114428033 A CN 114428033A CN 202210333017 A CN202210333017 A CN 202210333017A CN 114428033 A CN114428033 A CN 114428033A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
- G01N5/045—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
- G01N5/025—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content for determining moisture content
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Abstract
The application provides a heavy rainfall earth's surface water content early warning monitoring devices belongs to geology early warning technical field, and heavy rainfall earth's surface water content early warning monitoring devices is including burying ground infiltration subassembly and moisture exchange assembly. The buried water seepage component comprises a buried cylinder, a prefabricated cylinder, a water seepage ring and a buried plate, and the water-containing exchange component comprises a soil foundation storage cylinder, a soil foundation cover plate, a water-containing ring and an expansion sponge. Through the interval setting of water ring and infiltration ring, make and measure soil and external soil disconnection, measure in the soil base storage cylinder that soil is unsettled by the measurement, relevant driver part throws away soil base storage cylinder part moisture in prefabricated section of thick bamboo, the inflation sponge can shrink disconnection moisture exchange after moisture throws away, after the remeasurement top-down carries out the early warning monitoring to different degree of depth earth's surface water content in burying ground section of thick bamboo, exchange soil moisture through the pipe wall infiltration, soil through the standard is weighed and is monitored earth's surface water content, earth's surface water content monitoring precision is higher more stable.
Description
Technical Field
The application relates to the technical field of geological early warning, in particular to an early warning and monitoring device for water content of heavy rainfall earth surface.
Background
Heavy rainfall can result in increased surface water content and the ability of surface vegetation to host water sources is limited. Excessive rainwater can infiltrate downwards in a large quantity, so that a soil and stone layer on a slope is saturated, the weight of the sliding body is increased, and the shear strength of the soil and stone layer is reduced. The stability of the water-retaining mud-rock flow is reduced, and solid accumulated substances saturated with water move under the action of self gravity to form landslide mud-rock flow. Usually the debris flow is sudden, violent and can carry huge stones. It is extremely destructive because it has a strong energy due to its high speed of travel. Therefore, the water content of the earth surface needs to be monitored in an early warning manner, and the economic loss of personnel caused by related geological disasters is reduced. The moisture content of the earth surface is detected by a general drying method, a resistance method, a neutron scattering method and the like.
The drying method is a more common method for measuring soil moisture and is also a standard method, but sampling and drying are needed, and the surface water content cannot be monitored in real time. The resistance method is a method which is adopted by utilizing the resistance of certain porous substances and the water content of the porous substances, but the geology is not compact, and the dryness and the wetness are different, so that the accurate measurement is difficult. The neutron scattering method is an elaborate method for measuring the field soil moisture, and has obvious limitation on organic soil.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a heavy rainfall earth's surface water content early warning monitoring devices buries the region of being surveyed through the outer tube underground, adorns the inner tube again after the surface soil drying measurement after the excavation, puts into and buries the outer tube underground. Through pipe wall infiltration exchange soil moisture, go up and down to carry out the early warning monitoring of water yield to the earth's surface different degree of depth one by one, weigh through the soil of most common standard and detect the earth's surface water content, earth's surface water content monitoring precision is higher more stable.
The application is realized as follows:
the application provides a heavy rainfall earth's surface water content early warning monitoring devices is including burying ground infiltration subassembly and moisture exchange assembly.
Bury ground infiltration subassembly including burying a ground section of thick bamboo, a prefabricated section of thick bamboo, infiltration ring and burying the ground board, a prefabricated section of thick bamboo intercommunication set up in bury on the section of thick bamboo, infiltration ring interval set up in bury in the section of thick bamboo, bury the floor overlap joint in a prefabricated section of thick bamboo top, it includes soil base storage cylinder, soil base apron, contains water ring and inflation sponge to contain water exchange assembly, soil base storage cylinder run through set up in bury in the ground section of thick bamboo with in the prefabricated section of thick bamboo, soil base apron set up in soil base storage cylinder both ends, contain water ring interval fixed cup joint in soil base storage cylinder surface, contain water ring with infiltration ring one-to-one, the inflation sponge evenly set up in contain water intra-annular.
In an embodiment of the application, exchange grooves are uniformly formed in the surface of the water-containing ring, the expansion sponge is arranged in the exchange grooves, and the exchange grooves are respectively communicated with the soil-based storage cylinder and the water-permeating ring.
In one embodiment of the present application, a suspension groove is disposed between adjacent water-containing rings, and the water-permeable rings correspond to the suspension grooves one to one.
In one embodiment of the application, an interval empty groove is formed between the adjacent water seepage rings and the surface of the buried barrel, and the water-containing rings correspond to the interval empty grooves one to one.
In an embodiment of the application, the two ends of the buried barrel are communicated and provided with a connecting flange, and the connecting flange is communicated and provided with another connecting flange of the buried barrel.
In one embodiment of the application, the prefabricated cylinder is provided with fixing flanges in a communicating manner, the buried floor is arranged on one of the fixing flanges, and the other fixing flange is arranged on the connecting flange in a communicating manner.
In one embodiment of the application, the soil base cover plate is uniformly provided with a rotating handle.
In an embodiment of this application, bury ground board week side and evenly be provided with the support, be provided with the ground nail on the support.
In one embodiment of the present application, locking grooves are formed at both ends of the soil foundation storage barrel, and the soil foundation cover plate is disposed in the locking grooves.
In one embodiment of the present application, a draining cavity is arranged in the prefabricated barrel, and the soil-based storage barrel is arranged in the draining cavity in a penetrating manner.
In an embodiment of the application, the early warning and monitoring device for the water content of the heavy rainfall earth surface further comprises a weighing and metering component and a grading early warning component.
The weighing and metering assembly comprises a weighing plate, weighing sensors, a metering plate and balance bolts, wherein the weighing plate is arranged above the buried plate, the weighing sensors are uniformly suspended at the bottom of the weighing plate, the metering plate is arranged between the weighing sensors, the upper end of each balance bolt is symmetrically arranged below the weighing sensors, the lower end of each balance bolt is slidably sleeved on the periphery of the metering plate, the grading early warning assembly comprises a grading hydraulic cylinder, an early warning plate, a centrifugal motor and a centrifugal shaft, the cylinder body of the grading hydraulic cylinder is symmetrically arranged on the metering plate, the early warning plate is arranged at one end of a piston rod of the grading hydraulic cylinder, the body of the centrifugal motor is arranged on the early warning plate, the lower end of the centrifugal shaft is arranged on the soil-based cover plate, and the upper end of the centrifugal shaft is fixed at the output end of the centrifugal motor.
In an embodiment of the application, the weighing plate is provided with standing columns on the periphery, the standing columns are fixed on the buried floor, the bottom of the weighing plate is symmetrically provided with hanging seats, and the weighing sensors are fixed on the hanging seats.
In an embodiment of the application, the output end of the weighing sensor is fixed with a weighing seat, the balance bolt is provided with a balance nut, and the balance nut is attached to the surface of the weighing seat.
In an embodiment of the application, the balance bolt lower extreme is provided with the rotary lug, the measuring disc week side is provided with the balancing pole, the rotary lug slip cup joint in the balancing pole surface.
In an embodiment of the application, the early warning dish is provided with guide rods symmetrically, the guide rods penetrate through the surface of the metering disc in a sliding manner, the lower end of the centrifugal shaft is provided with a fixed table, and the fixed table is fixed on the soil foundation cover plate.
The beneficial effect of this application is: this application obtains through above-mentioned design a heavy rainfall earth's surface water content early warning monitoring devices, during the use, select suitable earth's surface monitoring point, the earth's surface degree of depth as required monitoring, excavation monitoring earth's surface, will bury ground a section of thick bamboo butt joint extension after and put into the excavation hole in, bury the floor slab and cover the entrance to a cave, soil part after will excavating is dried, fill into in the soil matrix storage section of thick bamboo after the remeasuring, it is sealed with soil matrix storage section of thick bamboo both ends through soil matrix apron, fill in the water ring with the inflation sponge, and put into the section of thick bamboo that buries after the remeasuring through relevant drive assembly, when heavy rainfall appears, rainwater passes through in the water ring infiltration water ring recess of infiltration, the inflation sponge is filled the recess fast after absorbing water, and the interior external soil of both ends laminating infiltration ring and measure soil in the soil matrix storage section of thick bamboo. Through the interval setting of water ring sum infiltration ring, make in the soil base storage cylinder measure soil and the internal external soil disconnection of infiltration ring, measure in the soil base storage cylinder that soil is unsettled by the measurement, relevant drive unit throws away soil base storage cylinder part moisture in prefabricated section of thick bamboo, the moisture exchange of inflation sponge meeting shrink disconnection infiltration ring sum soil base storage cylinder after moisture throws away, after the remeasurement top-down carries out the early warning monitoring to different degree of depth earth's surface water content in burying ground section of thick bamboo, exchange soil moisture through pipe wall infiltration, soil through standard stability is weighed and is monitored earth's surface water content, earth's surface water content monitoring precision is higher more stable.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic perspective view of a device for early warning and monitoring water content on a heavy rainfall surface according to an embodiment of the present disclosure;
fig. 2 is a schematic perspective view of a buried water seepage assembly provided in an embodiment of the present application;
FIG. 3 is a schematic perspective view of an aqueous exchange assembly according to an embodiment of the present disclosure;
FIG. 4 is a schematic perspective view of a weighing and metering assembly according to an embodiment of the present disclosure;
FIG. 5 is a partial perspective view of a weigh measuring assembly according to an embodiment of the present disclosure;
fig. 6 is a schematic perspective view of a hierarchical warning assembly according to an embodiment of the present application.
In the figure: 100-buried water seepage components; 110-buried cylinder; 111-a connecting flange; 120-prefabricating a cylinder; 121-a fixed flange; 122-a draining cavity; 130-water permeable ring; 131-space empty slot; 140-buried floor; 141-a support; 142-ground nail; 300-an aqueous exchange module; 310-a soil base storage cylinder; 311-lock groove; 320-a soil base cover plate; 321-a rotating handle; 330-aqueous ring; 331-an exchange tank; 332-a free slot; 340-expanded sponge; 500-a weight-metering assembly; 510-weighing pan; 511-standing post; 512-hanging seat; 520-a load cell; 521-weighing seat; 530-a metering disc; 531-balance bar; 540-balance bolt; 541-balance nut; 542-rotating ears; 700-grading pre-warning component; 710-a grading hydraulic cylinder; 720-early warning disc; 721-a guide rod; 730-centrifugal motor; 740-centrifuge axis; 741-fixed station.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
As shown in fig. 1-6, the heavy rainfall earth surface water content early warning monitoring device according to the embodiment of the application comprises buried water seepage components 100, water-containing exchange components 300, weighing and metering components 500 and grading early warning components 700, wherein the water-containing exchange components 300 are installed in the buried water seepage components 100 in a penetrating mode, the weighing and metering components 500 are installed on the buried water seepage components 100, the upper ends of the grading early warning components 700 are installed between the weighing and metering components 500, and the lower ends of the grading early warning components 700 are installed on the water-containing exchange components 300. Bury ground infiltration subassembly 100 and bury underground through the pipeline and constitute earth's surface water content monitoring passageway, the moisture exchange subassembly 300 landfill monitoring soil and carry out the moisture exchange with outside soil, the measurement of weighing subassembly 500 carries out the weighing to moisture exchange subassembly 300, and hierarchical early warning subassembly 700 control moisture exchange subassembly 300's lift carries out the water content monitoring to the soil of the different degree of depth.
As shown in fig. 2-6, heavy rainfall causes the water content of the earth surface to increase, excessive rainwater can infiltrate a great deal, and the earth and rocky layers on the slope are saturated, so that the weight of the sliding body is increased, the shear strength of the earth and rocky layers is reduced, and the landslide mud-rock flow is formed. Soil moisture is measured to the stoving method, needs the sample stoving, can't monitor the earth's surface water content in real time, and the resistance method is subject to the geology and differs, closely, the wet degree is different, is difficult to the accurate measurement earth's surface water content. Organic soil affects the measurement accuracy of the neutron scattering method. These all influence the monitoring precision of heavy rainfall to earth's surface moisture content in landslide area.
The buried water seepage assembly 100 comprises a buried cylinder 110, a prefabricated cylinder 120, a water seepage ring 130 and a buried plate 140, wherein the prefabricated cylinder 120 is communicated with the buried cylinder 110, two ends of the buried cylinder 110 are communicated with connecting flanges 111, the connecting flanges 111 are communicated with the connecting flange 111 of the other buried cylinder 110, and the buried cylinder 110 is lengthened. The prefabricated barrel 120 is provided with a fixing flange 121 in a communicating mode, the fixing flange 121 is welded with the prefabricated barrel 120, and the other fixing flange 121 is arranged on the connecting flange 111 in a communicating mode, so that the prefabricated barrel 120 is conveniently connected with the buried barrel 110. The water seepage rings 130 are disposed in the underground cylinder 110 at intervals, in an embodiment, the water seepage rings 130 intercept solid particles in the soil, and rainwater seeps downward and can circulate through the water seepage rings 130. The buried floor 140 is lapped on the top of the prefabricated barrel 120, the buried floor 140 is arranged on one of the fixing flanges 121, and the buried floor 140 is in threaded connection with the fixing flange 121. The support 141 is uniformly arranged on the peripheral side of the buried floor 140, the support 141 is in threaded connection with the buried floor 140, and the ground nail 142 is arranged on the support 141, so that the buried floor 140 can be conveniently supported and fixed on the excavated opening.
The water-containing exchange assembly 300 comprises a soil-based storage cylinder 310, a soil-based cover plate 320, a water-containing ring 330 and an expansion sponge 340, wherein the soil-based storage cylinder 310 is arranged in the buried cylinder 110 and the prefabricated cylinder 120 in a penetrating manner, a draining cavity 122 is arranged in the prefabricated cylinder 120, and the soil-based storage cylinder 310 is arranged in the draining cavity 122 in a penetrating manner. The soil base cover plates 320 are arranged at two ends of the soil base storage cylinder 310, the locking grooves 311 are arranged at two ends of the soil base storage cylinder 310, the soil base cover plates 320 are arranged in the locking grooves 311, the soil base storage cylinder 310 is filled with soil on the monitoring site, and the soil component structure in the soil base storage cylinder 310 is kept consistent with the soil component structure outside the buried cylinder 110. The water-containing rings 330 are fixedly sleeved on the surface of the soil-based storage barrel 310 at intervals, and the water-containing rings 330 are in screw connection with the soil-based storage barrel 310. The water-containing rings 330 correspond to the water-permeable rings 130 one by one, and the water-containing rings 330 contact the water-permeable rings 130 to exchange water. The expansion sponge 340 is uniformly arranged in the water-containing ring 330, the surface of the water-containing ring 330 is uniformly provided with an exchange groove 331, the expansion sponge 340 is arranged in the exchange groove 331, and the exchange groove 331 is respectively communicated with the soil-based storage cylinder 310 and the water seepage ring 130.
Wherein, be provided with suspension groove 332 between adjacent water ring 330, infiltration ring 130 and suspension groove 332 one-to-one correspond, constitute empty groove 131 between adjacent infiltration ring 130 and buried barrel 110 surface, water ring 330 and empty groove 131 one-to-one correspond between, break water ring 330 and infiltration ring 130 contact, reduce moisture exchange. The soil base cover plate 320 is uniformly provided with a rotating handle 321, which is convenient for filling and taking out the soil in the soil base storage cylinder 310.
Digging soil in the monitoring area, drying and weighing the digging soil, then re-metering the digging soil, filling the soil into the soil-based storage cylinder 310, keeping the consistency of the test soil and the monitoring soil, plugging the expanding sponge 340 into the water-containing ring 330, re-metering the expanding sponge through the related driving parts, and then placing the expanding sponge into the buried cylinder 110, thereby obtaining the weight of the weighing equipment for removing the filling soil. When strong rainfall occurs, rainwater in the surface soil permeates into the exchange groove 331 of the water-containing ring 330 through the water-permeating ring 130, the expansion sponge 340 quickly expands after absorbing water to fill the exchange groove 331, the space volume in the exchange groove 331 is known, and the weight increased by the weighing device after the expansion sponge 340 absorbs water and expands can be obtained. After the expansion sponge 340 expands, the two ends of the expanded sponge are attached to the external soil in the water seepage ring 130 and the soil to be measured in the soil-based storage barrel 310, and the water content in the soil-based storage barrel 310 tends to be consistent with the water content of the external soil. The related driving components control the dislocation of the water-containing rings 330 and the water seepage rings 130 of the soil-based storage barrel 310, the one-to-one correspondence of the water seepage rings 130 and the suspension grooves 332 is kept, the one-to-one correspondence of the water-containing rings 330 and the inter-empty grooves 131 is reduced, the water exchange is reduced, and the water content of the current deep earth surface soil can be accurately and stably obtained.
The weighing and metering assembly 500 comprises a weighing disc 510, a weighing sensor 520, a metering disc 530 and a balance bolt 540, wherein the weighing disc 510 is arranged above the buried floor 140, a standing column 511 is arranged on the periphery of the weighing disc 510, the standing column 511 is fixed on the buried floor 140, and the standing column 511 is respectively in threaded connection with the weighing disc 510 and the buried floor 140. The weighing sensors 520 are uniformly suspended at the bottom of the weighing plate 510, suspension seats 512 are symmetrically arranged at the bottom of the weighing plate 510, the weighing sensors 520 are fixed on the suspension seats 512, and the suspension seats 512 are respectively screwed with the weighing plate 510 and the weighing sensors 520. Metering disc 530 sets up between weighing sensor 520, and balance bolt 540 upper end symmetry sets up in weighing sensor 520 below, and balance bolt 540 lower extreme slides and cup joints in metering disc 530 week side, and weighing sensor 520 output end is fixed with and calls seat 521, calls seat 521 and weighing sensor 520 spiro union, is provided with balance nut 541 on the balance bolt 540, and balance nut 541 laminates in calling seat 521 surface, through balance nut 541 adjusting balance bolt 540's height.
Wherein, the lower extreme of balance bolt 540 is provided with and changes ear 542, and the measuring dish 530 week side is provided with balancing pole 531, and balancing pole 531 and measuring dish 530 spiro union change ear 542 and slide and cup joint in balancing pole 531 surface, are provided with the bearing in the specific ear 542 that changes, and the bearing slides and cup joints in balancing pole 531 surface.
The reality earth's surface is rugged complicated, and the earth's rock layer slope on the slope is different, and real heavy rainfall earth's surface water content monitoring needs perpendicular earth's rock layer to detect. This results in the surface moisture monitoring device being installed in an inclined manner, the monitoring device being supported by the buried floor 140 covering the excavation opening, the movement of the monitoring device on the slope being reduced by the ground nail 142, the height of each balance bolt 540 being adjusted by the balance nut 541, and the swivel 542 being slidably sleeved with the balance bar 531 to maintain the coaxiality of the soil base storage cylinder 310 and the prefabricated cylinder 120. The gap between the water-containing ring 330 and the water seepage ring 130 is kept consistent, the water in the external soil is uniformly infiltrated into the soil-based storage cylinder 310, the uniform water absorption stability of the test soil is improved, and the water content of the earth surface soil can be accurately and stably obtained through the weighing sensor 520.
The grading early warning assembly 700 comprises a grading hydraulic cylinder 710, an early warning disc 720, a centrifugal motor 730 and a centrifugal shaft 740, wherein the body of the grading hydraulic cylinder 710 is symmetrically arranged on the metering disc 530, and the grading hydraulic cylinder 710 is in threaded connection with the metering disc 530. The early warning plate 720 is arranged at one end of a piston rod of the grading hydraulic cylinder 710, guide rods 721 are symmetrically arranged on the early warning plate 720, the guide rods 721 are in threaded connection with the early warning plate 720, and the guide rods 721 penetrate through the surface of the metering plate 530 in a sliding mode, so that the lifting precision of the detection device is improved. The centrifugal motor 730 is disposed on the pre-warning plate 720, and the centrifugal motor 730 is screwed to the pre-warning plate 720. The lower end of the centrifugal shaft 740 is arranged on the soil foundation cover plate 320, the lower end of the centrifugal shaft 740 is provided with a fixed platform 741, the fixed platform 741 is fixed on the soil foundation cover plate 320, and the fixed platform 741 is respectively in threaded connection with the centrifugal shaft 740 and the soil foundation cover plate 320. The upper end of the centrifugal shaft 740 is fixed at the output end of the centrifugal motor 730, and the centrifugal shaft 740 is connected with the centrifugal motor 730 in a key mode.
The lifting of the soil foundation storage cylinder 310 is controlled by the grading hydraulic cylinder 710, the lifting precision of the soil foundation storage cylinder 310 is increased by the sliding penetration of the guide rod 721, and the coaxiality of the soil foundation storage cylinder 310 and the prefabricated cylinder 120 is maintained. The gap between the water-containing ring 330 and the water-seepage ring 130 is kept consistent, and the water in the external soil uniformly seeps into the soil-based storage cylinder 310, so that the water content of the earth surface is accurately measured. The soil foundation storage barrel 310 is driven to rotate by matching with the centrifugal motor 730, the test soil and the expanded sponge 340 are dried in the prefabricated barrel 120, the weight of the device is measured again through the weighing sensor 520, and the device is convenient to monitor the water content of the earth surface in next heavy rainfall with high precision.
As shown in fig. 2-6, the landslide debris flow is a flood flow formed by strong rainfall to saturate and dilute a soft soil mountain containing sand and stone, and has a large area, volume and flow rate. Typical debris flows consist of thick slurry with suspended coarse solid debris and rich silt and clay, a large amount of water soaks solid accumulated substances in a flowing water mountain slope to reduce the stability of the solid accumulated substances, and the solid accumulated substances saturated with water move under the action of self gravity to form a landslide debris flow. The existing landslide heavy rainfall early warning cannot accurately analyze destructive power and range aiming at landslide debris flow earth volume.
The detection depth of the monitoring device is increased through the butt joint of the buried cylinders 110, the earth surface water content monitoring is convenient to penetrate through the whole landslide rock and soil layer, when strong rainfall infiltration occurs on the earth surface, the grading hydraulic cylinder 710 firstly controls the soil-based storage cylinder 310 to stay on the upper layer of the earth surface, rainwater in soil of the current soil layer permeates into the exchange groove 331 of the water-containing ring 330 through the water-permeating ring 130, the exchange groove 331 is rapidly filled with water through rapid expansion after the expansion sponge 340 absorbs water, the expansion sponge 340 is expanded and then two ends of the expansion sponge are attached to the soil inside and outside the water-permeating ring 130 and the soil inside the soil-based storage cylinder 310 to measure the soil until the water content in the soil-based storage cylinder 310 is consistent with the water content of the outside soil, and when the water content of the soil in the soil-based storage cylinder 310 exceeds an alert value. The grading hydraulic cylinder 710 controls the soil-based storage cylinder 310 to ascend into the prefabricating cylinder 120, the centrifugal motor 730 controls the soil-based storage cylinder 310 to rotate to throw out part of soil moisture and the moisture of the expanded sponge 340, the moisture of the expanded sponge 340 retracts into the exchange tank 331, and the moisture exchange between the soil in the soil-based storage cylinder 310 and the soil outside the prefabricating cylinder 120 is cut off. And repeating the above operations, and carrying out early warning and monitoring on the water content of the earth surfaces at different depths from top to bottom, measuring and calculating the current landslide earthwork amount, and accurately early warning the landslide debris flow earthwork amount. And the earth volume of the debris flow is improved to carry out destructive power and range accurate analysis.
Specifically, this heavy rainfall earth's surface water content early warning monitoring devices's theory of operation: excavating soil in the monitoring area, drying and weighing the excavated soil, then re-metering the excavated soil, filling the soil into the soil-based storage barrel 310, keeping the consistency of the test soil and the monitored soil, plugging the expanded sponge 340 into the water-containing ring 330, re-metering the expanded sponge by related driving parts, and then placing the re-metered expanded sponge into the buried barrel 110, thereby obtaining the weight of the weighing equipment for removing the filled soil. When strong rainfall occurs, rainwater in the surface soil permeates into the exchange groove 331 of the water-containing ring 330 through the water permeating ring 130, the expansion sponge 340 quickly expands and fills the exchange groove 331 after absorbing water, the space volume in the exchange groove 331 is known, and the weight increased by the weighing device after the expansion sponge 340 absorbs water and expands can be obtained. After the expansion sponge 340 expands, the two ends of the expanded sponge are attached to the external soil in the water seepage ring 130 and the soil to be measured in the soil-based storage barrel 310, and the water content in the soil-based storage barrel 310 tends to be consistent with the water content of the external soil. The related driving components control the dislocation of the water-containing rings 330 and the water seepage rings 130 of the soil foundation storage cylinder 310, the one-to-one correspondence of the water seepage rings 130 and the suspension grooves 332 is kept, the one-to-one correspondence of the water-containing rings 330 and the spacing grooves 131 is kept, the water exchange is reduced, and the water content of the current depth earth surface soil can be accurately and stably obtained.
Further, the monitoring device is supported by covering the slope excavation opening through the buried floor 140, the movement of the monitoring device on the slope is reduced through the ground nail 142, the height of each balance bolt 540 is adjusted through a balance nut 541, and the rotating lug 542 is sleeved with the balance rod 531 in a sliding mode to keep the coaxiality of the soil foundation storage cylinder 310 and the prefabricated cylinder 120. The gap between the water-containing ring 330 and the water seepage ring 130 is kept consistent, the water in the external soil is uniformly infiltrated into the soil-based storage cylinder 310, the uniform water absorption stability of the test soil is improved, and the water content of the earth surface soil can be accurately and stably obtained through the weighing sensor 520.
Furthermore, the ascending and descending of the soil foundation storage cylinder 310 are controlled by the grading hydraulic cylinder 710, the ascending and descending precision of the soil foundation storage cylinder 310 is increased by the sliding penetration of the guide rod 721, and the coaxiality of the soil foundation storage cylinder 310 and the prefabricated cylinder 120 is maintained. The gap between the water-containing ring 330 and the water-seepage ring 130 is kept consistent, and the water in the external soil uniformly seeps into the soil-based storage cylinder 310, so that the water content of the earth surface is accurately measured. The soil foundation storage barrel 310 is driven to rotate by matching with the centrifugal motor 730, the test soil and the expanded sponge 340 are dried in the prefabricated barrel 120, the weight of the device is measured again through the weighing sensor 520, and the device is convenient to monitor the water content of the earth surface in next heavy rainfall with high precision.
In addition, the detection depth of the monitoring device is increased through the butt joint of the buried cylinders 110, the ground surface water content monitoring is facilitated to penetrate through the whole landslide rock and soil layer, when strong rainfall infiltration occurs on the ground surface, the grading hydraulic cylinder 710 firstly controls the soil-based storage cylinder 310 to stay on the upper layer of the ground surface, rainwater in soil of the current soil layer permeates into the exchange groove 331 of the water-containing ring 330 through the water-permeating ring 130, the exchange groove 331 is rapidly filled with water through expansion of the expansion sponge 340 after water absorption, the two ends of the expansion sponge 340 are attached to the soil inside and outside the water-permeating ring 130 and the soil inside the soil-based storage cylinder 310 to measure the soil after expansion of the expansion sponge 340 until the water content in the soil-based storage cylinder 310 is consistent with the water content of the outside soil, and when the water content of the soil inside the soil-based storage cylinder 310 exceeds an alarm value. The grading hydraulic cylinder 710 controls the soil-based storage cylinder 310 to ascend into the prefabricating cylinder 120, the centrifugal motor 730 controls the soil-based storage cylinder 310 to rotate to throw out part of soil moisture and the moisture of the expanded sponge 340, the moisture of the expanded sponge 340 retracts into the exchange tank 331, and the moisture exchange between the soil in the soil-based storage cylinder 310 and the soil outside the prefabricating cylinder 120 is cut off. And repeating the above operations, and carrying out early warning and monitoring on the water content of the earth surfaces at different depths from top to bottom, measuring and calculating the current landslide earthwork amount, and accurately early warning the landslide debris flow earthwork amount. And the earth volume of the debris flow is improved to carry out destructive power and range accurate analysis.
It should be noted that the specific model specifications of the weighing sensor 520, the classification hydraulic cylinder 710 and the centrifugal motor 730 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.
The power supply and the principle of the load cell 520, the classifying cylinder 710 and the centrifugal motor 730 are clear to the person skilled in the art and will not be described in detail here.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A heavy rainfall earth surface water content early warning monitoring device is characterized by comprising
The buried water seepage assembly (100) comprises a buried cylinder (110), a prefabricated cylinder (120), water seepage rings (130) and a buried plate (140), wherein the prefabricated cylinder (120) is communicated and arranged on the buried cylinder (110), the water seepage rings (130) are arranged in the buried cylinder (110) at intervals, and the buried plate (140) is lapped on the top of the prefabricated cylinder (120);
the water-containing exchange component (300) comprises a soil-based storage cylinder (310), a soil-based cover plate (320), water-containing rings (330) and expansion sponges (340), wherein the soil-based storage cylinder (310) is arranged in the buried cylinder (110) and the prefabricated cylinder (120) in a penetrating mode, the soil-based cover plate (320) is arranged at two ends of the soil-based storage cylinder (310), the water-containing rings (330) are fixedly sleeved on the surface of the soil-based storage cylinder (310) at intervals, the water-containing rings (330) correspond to the water-permeating rings (130) one to one, and the expansion sponges (340) are uniformly arranged in the water-containing rings (330).
2. The warning and monitoring device for water content on heavy rainfall earth's surface according to claim 1, wherein the water containing ring (330) has an exchange tank (331) uniformly opened on the surface thereof, the expansion sponge (340) is disposed in the exchange tank (331), and the exchange tank (331) is respectively communicated with the soil-based storage cylinder (310) and the water seepage ring (130).
3. The heavy rainfall earth surface water content early warning and monitoring device as claimed in claim 1, wherein a suspension groove (332) is arranged between adjacent water containing rings (330), and the water seepage rings (130) are in one-to-one correspondence with the suspension grooves (332).
4. The device for early warning and monitoring the water content on the heavy rainfall earth surface as claimed in claim 1, wherein a space groove (131) is formed between the adjacent water seepage rings (130) and the surface of the buried barrel (110), and the water seepage rings (330) are in one-to-one correspondence with the space grooves (131).
5. The heavy rainfall earth surface water content early warning and monitoring device as claimed in claim 1, wherein two ends of the underground cylinder (110) are provided with connecting flanges (111) in a communicating manner, and the connecting flanges (111) are provided with connecting flanges (111) of another underground cylinder (110) in a communicating manner.
6. The early warning and monitoring device for water content on heavy rainfall earth surface according to claim 5, wherein the prefabricated cylinder (120) is provided with fixing flanges (121) in communication, the buried floor (140) is arranged on one of the fixing flanges (121), and the other fixing flange (121) is provided with the connecting flange (111) in communication.
7. The early warning and monitoring device for water content on heavy rainfall earth surface according to claim 1, wherein the earth base cover plate (320) is uniformly provided with a rotating handle (321).
8. The early warning and monitoring device for water content on heavy rainfall earth surface according to claim 1, wherein the embedded floor (140) is uniformly provided with supports (141) on the periphery, and the supports (141) are provided with ground nails (142).
9. The heavy rainfall earth surface water content early warning and monitoring device as claimed in claim 1, wherein two ends of the soil foundation storage barrel (310) are provided with locking grooves (311), and the soil foundation cover plate (320) is arranged in the locking grooves (311).
10. The device for early warning and monitoring the water content on the heavy rainfall earth surface according to the claim 1, wherein a draining cavity (122) is arranged in the prefabricated cylinder (120), and the soil-based storage cylinder (310) is arranged in the draining cavity (122) in a penetrating way.
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