119 results about "Karst water" patented technology

The invention discloses a test method of karst water burst when tunneling, comprising the following steps of: preparing materials; filling materials; embedding elements; embedding a water tank; injecting water and monitoring, tunneling and monitoring, etc. The invention further discloses a monitor device used for the test method of the karst water burst when tunneling, comprising a module frame fixed on a base, a preset water tank, a water pressure loading mechanism, a stress field monitoring mechanism, a deformation field monitoring mechanism, a temperature field monitoring mechanism, a seepage field monitoring mechanism, an acoustic emission field monitoring mechanism, a module surface displacement deformation observing mechanism, a module deformation and water burst observing mechanismin tunnels after tunneling, a fiber demodulation device and a computer. The invention simultaneously can research the change regularity of premonitory multi field information which induces the water burst when tunneling at different water body containing positions and under different water pressure conditions, has wide application, high reliability, abundant collecting data, high test precision, etc.

The invention discloses a construction method for penetrating through a large-scale vertical karst cave group tunnel. A technical measure of backfilling concrete to reserve a water passing channel is adopted for a large-scale vertical karst cave group, by strengthening support of a steel arch frame and a pipe shed for a karst cave section, a reinforced concrete beam plate structure is adopted to span on a karst cave section tunnel bottom, the bearing capacity of foundation is greatly improved, municipal bellows are pre-embedded into circumferential cracks of the vertical karst cave group and an arch karst cave before backfilling the concrete and are led to the water passing channel, the hidden danger of high-pressure karst water due to long-term water accumulation is eliminated, and the construction period and the security of future operation period are ensured. The construction method for penetrating through the large-scale vertical karst cave group tunnel is convenient to construct, the construction period is greatly shortened, the treatment filling effect of the karst cave is improved, the safety of subsequent construction is improved, material filling and the construction method are simple and convenient and without special requirements, and good use effect of field construction is obtained.

The invention discloses a detection and treatment method of the karst water in a tunnel. The detection and treatment method of the karst water in the tunnel includes the following steps of a, detection of karst, specifically, before construction of the tunnel, the surrounding rock geological disaster condition in front of the tunnel face is understood so as to determine the location, scale and size of the karst; b, grouting construction with a large pipe shed; and c, grouting construction with a small pipe or a curtain. By adoption of the treatment principle of main blocking and combination of draining and blocking, a basic thought of the treatment technology of the karst water in the tunnel is determined. By detecting the specific location of the karst water and water yield, and taking measures of guiding and draining part of the karst water timely, security of operating personnel and equipment can be guaranteed; on the basis of analysis of the karst water and guiding and draining part of the karst water, full-face pre-grouting of the tunnel is conducted so as to block a passage of the karst water and guarantee security of tunnel construction. The detection and treatment method of the karst water in the tunnel is extremely suitable for treatment construction of the karst water in the tunnel, and meanwhile, has the reference significances for construction of highways, municipal works and water conservancy tunnels under similar geological conditions.

The invention provides a construction method for sealing a karst cave near a trench wall of an underground continuous wall in a karst stratum, comprising the steps of firstly, surveying the situation of the karst cave; secondly, pumping and discharging karst water; thirdly, implementing primary filling in the karst cave; fourthly, implementing primary double-slurry grouting for reinforcement; fifthly, implementing secondary filling and secondary double-slurry grouting for reinforcement; sixthly, after completely implementing cement-sodium silicate double-slurry grouting and sealing the whole boundary, implementing compaction grouting by adopting cement slurry till reaching a technical standard of grouting stop; seventhly, after finishing grouting and pulling out a grouting pipe, sealing holes with cement mortar M7.5#, wherein the completion of hole sealing means the completion of sealing the karst cave on the periphery of the grouting holes; eighthly, inspecting a karst cave treatment effect. According to the construction method for sealing the karst cave near the trench wall of the underground continuous wall in the karst stratum, the cement slurry consumption can be lowered, the setting time of the cement-sodium silicate slurry is shortened, the construction efficiency is improved, the surrounding environment is protected, the strength of a grouted condensed slurry body is guaranteed, and the safe implementation of a project is assured.

The invention relates to a two-dimensional ground nuclear magnetic resonance inversion method based on B spline interpolation, wherein an interpreting result obtained through array type coil semi-covering can be obtained through laying relatively small number of coils and collecting signals of several measuring points according to a B spline interpolation inversion method. The two-dimensional ground nuclear magnetic resonance inversion method is suitable for detecting non-layered non-uniform water body. The B spline interpolation method is used for performing interpolation calculation on the initial amplitude of a nuclear magnetic resonance signal, thereby enlarging a data matrix and improving correlation among data. An optimal regularization factor is searched through a dichotomy, thereby improving calculation speed. A Gauss-Newton iteration method is used for solving an inversion objective function, thereby obtaining a high-precision smooth inversion result. The two-dimensional ground nuclear magnetic resonance inversion method settles the problems of long wiring time, low detecting efficiency, unsmooth inversion result and low precision in two-dimensional ground nuclear magnetic resonance detection. The two-dimensional ground nuclear magnetic resonance inversion method can be used for high-efficiency, high-resolution and high-precision detection on underground water on conditions of fracture water, karst water, etc. The two-dimensional ground nuclear magnetic resonance inversion method has advantages of greatly improving detecting efficiency and reducing field measurement time.

The invention discloses a method for identifying water-bursting risks in karst tunnels, characterized by comprising the following steps: carrying out horizontal drilling on a tunnel working face; installing a pressure gage on a central test hole; implementing related water draining and shutting test methods and procedures; and according to the obtained test results, carrying out discrimination onhigh water-bursting risk identification. By using the detection and test methods, whether a rock salt cavity in front of a constructed tunnel has higher karst water-bursting risks can be judged quickly, so that corresponding engineering measures are taken for handling or avoiding the risks.

The invention relates to a tunnel construction method for crossing a karst water-rich section. The method is characterized by comprising the following steps of: step 1, when the tunnel construction isclose to the karst water-rich section, predicting the underground water development condition and stratum information by adopting an advanced geological prediction method; step 2, drilling a water detecting hole by adopting advanced horizontal hole drilling, and detecting the water inrush position, the water inrush amount and the water inrush pressure of the karst water-rich section through the water detecting hole; step 3, digging a tunnel face leading guide pit in the contour line of a tunnel according to the predicted water inrush position for drainage and pressure reduction, wherein the water inrush position is located on the side wall of the leading guide pit; step 4, grouting by adopting an advanced small conduit, carrying out advanced support on the tunnel to form a grouting ring for water isolation, and preventing underground water from flowing into surrounding rock in front of a tunnel face; and 5, excavating a tunnel body, plugging the water detecting hole, and excavating the tunnel body by controlled blasting. According to the tunnel construction method, the risk of water inrush on the tunnel face can be effectively reduced, and the tunnel construction safety is guaranteed.

The invention relates to a mixed grouting equipment for stopping groundwater with high pressure and the mixed grouting technology. The invention provides a mixed technology outside of hole with cement grout and water glass. It is used to control the freezing time of grout to ensure cement grout not scatter under the high pressure ground water and bad geological conditions so as to achieve the stopping purpose for groundwater grout. The equipment in the invention comprises distributor, static mixer, one-way valve, high speed mixer, high pressure mud pump, high pressure variable-frequency pump, storing grout barrel, water glass barrel, relative valves, pressure gauge, flow gauge and so on. The grouting technology in the invention is drilling hole, fabricating and assembling stop plug, waiting for freezing of stop plug at the hole port, starting grouting and stopping watered point. The invention can be applied in leakage stopping and reinforcing treatment for karst water inrush soil layer, piping of dam foundation of reservoir, linear flowing water and so on.

The invention discloses a method for determining a horizontal seepage channel of a runoff area by adopting a tracing technology. According to the method, on the basis of karst region hydrogeology condition understanding, existing hydrogeology observation holes in a region are firstly selected, water level unified measurement is carried out, an underground water flow field is drawn, hydraulic connection among the holes is determined, then a tracing test is arranged, and the horizontal apparent flow velocity in the region is calculated; secondly, a representative drill hole is selected in a targeted manner to carry out long-term monitoring on underground water temperature and conductivity indexes, inflection points of underground water movement in the drill hole are judged, the occurrence depth of a horizontal seepage channel is determined, and the flow velocity of underground water in the drill hole in the vertical direction is calculated; and finally, the difference between flow velocities in the vertical direction and the horizontal direction is comprehensively analyzed to determine a seepage channel. The invention provides scientific basis and decision support for karst water system protection and karst water resource management.

The invention relates to the field of basement water-rich geological structure waterproof construction, in particular to a water seepage control construction method for karst water-rich geological underground structure waterproof construction. The problem that waterproof construction is affected due to the fact that existing underground structure waterproof construction only focuses on construction self-waterproofing and is poor in waterproof effect and water pressure and waterways of foundation pit water seepage always exist. The water seepage control construction method includes the steps of water seepage control on baseboard waterproof construction, waterproofing and water draining of baseboards and continuous wall corners, water seepage control on wall waterproof construction, water seepage control on portal waterproof construction, and water seepage control on waterproof construction of expansion joints and post-cast strips. A water seepage control technique at positions such as the baseboards, station structure side walls, the expansion joints and the post-cast strips is realized, structure waterproof performance is improved, waterproof construction is ensured to be performed in a water-free environment, quality of waterproof construction and cement construction under the karst water-rich geological conditions is guaranteed, simplicity and convenience in technological operation are realized, and the water seepage control construction method is wide in application range, reliable in technology, high in superiority and convenient to popularize and apply.

The invention discloses a simulation device for supply source and pollution control of a double karst aquifer system, and further discloses a simulation method utilizing the simulation device. The simulation device comprises a water supply part, a seepage part, a pressure measuring part and a water taking part. The simulation device and the simulation method can be used for simulating a karst large spring discharge multi-source supply process, a karst water pollution remediation effect, the mixture ratio of a confined karst water system drainage spring supply source, the mixture ratio of a phreatic karst water system drainage spring supply source, the mixture ratio of a double karst water system drainage spring supply source, and the impact of a fault zone on the dynamic field of a double-karst water system drainage area. Experimental data obtained with the simulation device can theoretically reveal the evolution of a hydro-dynamic field and a hydro-chemical field during a water cycle process of the double karst aquifer system, the supply proportional composition of a karst water system drainage spring, and the pollution remediation process of a karst water system.

The invention provides a controlled impermeable leaking stoppage grout-extruding water-stopping technology of a strong water permeable stratum of a quaternary system, and the technology is characterized in that the smaller fluidity of serum is utilized to control the diffusion radius of the serum, the grouts are extruded at high pressure from bottom to top in a segment mode, so that the serum is extruded into a permeable stratum to block off permeable pores so as to form an impermeable curtain, thereby achieving the purpose of blocking the strong water permeable stratum. The impermeable leaking stoppage grout-extruding water-stopping grouting technology and parameters are contained. The technology is mainly applied to the impermeability of strong water permeable stratums with permeability coefficient above 1-1*10<-3>cm / s and emergent leaking stoppage treatment for surge of water bursting in foundation pits, karst water bursting, cofferdam body and foundation water stopping, water stopping in side slopes of surface mines, water bursting in water supply engineering pump station foundations, water bursting in bridge foundation pits, water bursting in foundations of high rising buildings, water bursting in river-crossing building foundations and tunnels in water conservancy and hydropower engineering and other engineering.

The invention discloses a karst collapse water vapor pressure remote monitoring system. The system comprises an observation well, a sensor monitoring module, a solar energy power supply module, a data acquisition and transmission module and a client. The sensor monitoring module comprises a hole water pressure sensor and a gas pressure sensor. The solar energy power supply module comprises a solar panel, a solar cell controller and a storage battery. The data acquisition and transmission module comprises a microcomputer time control switch, a GPRS wireless communication module and a data acquisition instrument. The client allows a user to check real-time data and historical data in an online mode and allows the user to remotely set a karst water vapor power monitoring density according to a need. By using the karst water vapor power monitoring system and the method, changes of water vapor pressure in a karst cavity can be continuously, stably and remotely monitored in a long-term mode, a karst collapse geological disaster mechanism is researched and purposes of karst collapse monitoring and early warning are reached.

The invention discloses a method for determining a railway space line position in a karst mountainous area, and aims to enable a tunnel to integrally pass through a section with lower karst water gushing and mud bursting risks, effectively reduce railway engineering risks in the karst mountainous area, greatly reduce line selection cost and save investigation time limit. The method comprises the following steps: arranging a karst hydrodynamic profile along a karst slope in a direction perpendicular to a river; determining the highest underground water level line; determining a lowest underground water level line; dividing a karst vertical seepage zone, a karst seasonal variation zone and a karst horizontal flowing zone; through coordination and cooperation of spatial line position plane position adjustment and spatial line position longitudinal section position adjustment, enabling a railway tunnel to pass through a middle-low-risk karst vertical seepage zone, avoid a high-risk seasonal variation zone and an extremely-high-risk horizontal flowing zone, or form a herringbone slope surface in a preset tunnel.

Provided is a method for preventing and controlling limestone water in a coal seam exploitation floor, and the method can solve the technical problems that limestone water damage of the floor is proneto occur in the mining process of the Carboniferous Permian coal resources in China. The method includes the following steps: S100, comprehensively exploring hydrogeological conditions of limestone of a coal seam floor; S200, dividing the positions of a limestone karst water-containing layer and water-blocking layer in the coal seam floor, so as to determine the specific layer position to be transformed; S300, performing grouting transformation and drainage pressure reduction according to the specific layer position; S400, detecting a vertical water channel of the coal seam floor by using geophysical exploration, and then conducting grouting and sealing; and S500, synthetically evaluating the grouting and treatment effect based on a combination of detecting verification of the grouted transformation layer and drilling core analysis, so as to determine feasibility of safe mining. According to the present invention, the coal seam floor is divided into the limestone karst water-containing and water-blocking layer on the basis of the comprehensive exploration of the limestone hydrogeological conditions of the coal seam floor, and the specific layer position to be transformed is determined, grouting transformation and drainage pressure reduction are performed, geophysical exploration is used to detect the channel, and then grouting and sealing are performed. Finally, comprehensiveevaluation is conducted through various methods such as a water bursting coefficient, numerical simulation, geophysical exploration and drilling detection to determine the feasibility of safe mining.

The invention discloses a conceptual hydrological model combined forecasting method suitable for a karst region, and belongs to the field of hydrological forecasting. A karst hydrological model is constructed by using a karst water tank technology; the karst hydrological model is fused with a traditional conceptual hydrological model of a full productive flow mechanism; The method comprises the steps of obtaining a conceptual hydrological combination forecasting model suitable for a karst region, calibrating model parameters by adopting a multi-objective optimization algorithm, driving the model by using basin rainfall evaporation data to obtain runoff forecasting of a basin, and comparing a forecasting result with an actually measured runoff process and a forecasting result of a traditional model. According to the method, a combined forecasting concept and a multi-target parameter calibration method are introduced, the defect of forecasting of a pure concept hydrological model and a pure karst water tank model in a karst region is overcome, and the confluence generation and generation characteristics of the karst region are better reflected. The method provided by the invention provides a new method and idea for hydrological forecasting of the karst region.

The invention provides a karst ground collapse prediction and forecasting method based on karst water dynamics, and relates to the technical field of prediction and forecasting, capable of realizing short-time, small-range and high-precision prediction and forecasting in a karst ground collapse dangerous area. The method specifically includes the steps: establishing a water level and water qualitydynamic monitoring grid of karst water; and dynamically monitoring the karst water level, water quantity, turbidity, main chemical components and other indexes in real time, thus being able to combine the karst water movement direction determined by a water level line plane graph, and analyzing the karst ground collapse inoculation process through a water level and water quality joint tracing method, and accurately defining the possible collapse range in time according to the information. The karst ground collapse prediction and forecasting method by the invention is simple and effective, andhas an important practical value for improving the precision and accuracy of karst ground collapse prediction.

The invention discloses a sleeve tube isolating layer shuttered zone method of down hole detecting and placing high pressure karst water drilling construction for mine. The sleeve tube isolating layer shuttered zone method of down hole detecting and placing high pressure karst water drilling construction for the mine comprises the following steps: a first layer sleeve tube (6) is descended, a second section hole diameter is constructed, when a layer shuttered zone is encountered in the process of drilling, a slip casting method is not adopted, a key sleeve tube (5) is descended between the first layer sleeve tube (6) and the second layer sleeve tube (3), cement paste isolation and seal are conducted after the key sleeve tube (5) is descended, a pressure-tight test is conducted by casing a hole, if the result is qualified, drilling construction of a third section hole diameter is conducted, and a second layer sleeve tube (3) is descended in. Due to the fact that methods of dripping an extra sleeve tube and increasing an open hole orifice diameter are adopted, problem of encountering the layer shuttered zone in the process of detecting high pressure karst water in down hole roadway construction is solved, construction period is not delayed, cost is low, and long term and stable drilling can be ensured.

The invention discloses a cubic test device and method for monitoring the flow motion mechanism of a karst medium. The device comprises a replenishment system, a structure-variable cubic karst mediumphysical model, a spring flow monitoring system and a pressure sensing system. The replenishment system is used to simulate different natural rainfall recharge. The cubic karst medium physical model is arranged below the replenishment system and is used for simulating a fracture network of a karst medium. A pressure sensor system is arranged in the cubic karst medium physical model and monitors water head change cases of measured points in the monitored model in real time. A data acquisition system is connected to the pressure sensor system and the spring flow monitoring system, records data in real time and stores the data in a computer. The cubic test device has a reasonable structure and maximally simulates the distribution network of a complex crack-longitudinal pipe medium 3D space inthe karst zone. The automatic data collection and air bubble elimination device effectively reduces the error. The cubic test device is suitable for research of the karst water-soluble substance migration law mechanism.

The invention discloses a sunken mine high-flow and high-flow-rate pipe fracture type karst gushing water blockage method. The method comprises the following steps: multiple non-continuous grouting curtains are constructed in a low-resistance rich water area; a flow control pulp stop pad is arranged in a water gushing port of a karst pipe for controlling the flow of a water outlet through a drainage pipe with a valve; the porous segmented united grouting is adopted; multiple holes are segmented to high-connectivity drilling holes of different non-continuous curtains; and the united grouting is synchronous grouting of near-end holes and far-end holes. Multiple sections of compact curtain walls are constructed to stop a fracture water passing channel; the flow control pulp stop pad is arranged in the water gushing port for reducing the flow rate of water currents in the karst pipe; and the pulp reservation quantity and the filling distance are increased, so that the pulp is effectively condensed to block the pipe. The technology system of non-continuous curtains+flow control pulp stop pad+key channel exploration and grouting finally realizes the curtain closure and the karst pipe blockage, thoroughly blocks the karst open sunken mining water gushing, guarantees no streaming phenomenon of karst water, and can effectively save the cost.

The invention provides an experiment simulation device and method for quantitatively researching karst collapse. The device comprises a model main body, a water supply unit, a constant-pressure sand-soil collecting unit, a seepage field monitoring unit and a ground deformation monitoring unit, wherein the model main body is karst covering layer and karst bed rock simulation equipment and comprises a covering layer cavity and a karst ground layer cavity, wherein the karst ground layer cavity is located at the lower part of the covering layer cavity and is communicated to the covering layer cavity; the power supply unit comprises a covering layer water supply unit communicated with the covering layer cavity and a karst ground layer water supply unit communicated with the karst ground layer cavity; and the constant-pressure sand-soil collecting unit is used for collecting karst collapse sand-soil quantity in different moments when a karst water level is constant in the whole karst collapse process and quantitatively evaluating a collapse evolution process. According to the experiment simulation device, the karst collapse process is quantitatively researched by monitoring the dynamic change of the seepage field of the covering layer and the leakage quantity of collapse sand of the covering layer.

The invention relates to a donkey-hide gelatin silky chicken soup beverage and a preparation method thereof, comprising the following raw materials based on parts by weight: 50-1000 of silky chicken, 1000-3000 of Dong E karst water, 20-80 of donkey-hide gelatin, 10-60 of tortoise plastron, 10-60 of cartialgenous, 10-60 of American ginseng, 20-100 of Chinese date, 10-50 of barbary wolfberry fruit, 5-20 of saffron, 20-100 of scallion, 20-100 of ginger, 10-50 of pepper, 10-50 of star aniseseen, 3-10 of cinnamon, 5-20 of wild mountain mushroom, 10-60 of black red sugar, and proper quantity of salt. The preparation method comprises the following steps of: slaughtering the silky chicken and cleaning; filling with dosage; enlacing; putting the enlaced silky chicken into a red porcelain pot filling with the Dong E karst water and sealing; putting the red porcelain pot into a special PanLong kiln; stewing and boiling for 1-24 hours with charcoal and naturally extinguishing, cooling at 30-80 DGE C and putting the red porcelain pot out of the kiln; degreasing and filtering out soup to be standby; smashing solid part into slurry; adding with proper drinking water and cooking; and filtering out soup to be standby; adding with proper drinking water and salt according to the requirement of products and sterilizing under high temperature at 110-120 DEG C; and bottling the soup and sealing.

The karst landform water mill drilling construction technology of the present invention relates to the technical field of construction engineering, and aims to solve the difficulties in breaking hard rocks, slow construction progress, large noise, and poor foundation hole forming effect in the traditional foundation hole forming construction technology with hard foundation rocks. technical problem. The karst geomorphic water mill drilling construction technology of the present invention includes the following steps: a) On the ground surface to be constructed, mark out the outer circumference of the target hole and two mutually perpendicular diameter lines according to the position and size of the target hole; Carry out core drilling on the outer circumference of the hole; c) Repeat step b until all core drilling operations along the outer circumference of the target hole are completed; d) Adopt the core drilling operation method of steps b to c, and follow the two diameters described in step a The core drilling operation is carried out on the line, and the central axis of the drill barrel intersects the diameter line perpendicularly during the operation; e) Break and remove the stones in the target hole.

The invention provides a maintaining device for a coating roller of carbon tetrachloride karst water deposit and an operating method for the maintaining device. An automatic cleaning device comprises a supporting base, a cleaning agent stock solution tank, a rotating center shaft, a rotating platform, a lifting telescopic column, a supporting vertical column, a rotating connecting rod, an angle adjusting pushing rod, a cleaning liquid spraying device and a cleaning liquid adding device, wherein the cleaning agent stock solution tank and the rotating center shaft are arranged on the upper part of the supporting base; the rotating platform which is rotatably connected to the upper end of the rotating center shaft is driven by a rotating control motor; the lifting telescopic column is fixedly connected to the peripheral between the rotating platform and the supporting platform; the supporting vertical column is fixedly connected to the upper part of the supporting platform; one end of the rotating connecting rod is hinged to the upper end of the supporting vertical column; two ends of the angle adjusting pushing rod are correspondingly hinged to the supporting vertical column and the rotating rod; the cleaning liquid spraying device is hinged to the other end of the rotating connecting rod; and the cleaning liquid adding device is connected with a liquid inlet of the cleaning liquid spraying device and a liquid outlet of the cleaning agent stock solution tank. The operating method for the maintaining device comprises the step that an automatic cleaning liquid spraying head is automatically controlled through a central controller to spray cleaning liquid to the dirt part. The maintaining device for the coating roller of carbon tetrachloride karst water deposit is reasonable is structure and high in integration, and the operating method for the maintaining device is helpful to improve working efficiency of the coating roller.

The invention discloses a karst tunnel water gushing prediction method. Through high-resolution dynamic monitoring of rainfall and the karst underground river pipeline flow, the response characteristics of a karst water system under different rainfall and rainfall intensity conditions are grasped, and the lag time of confluence of all karst sub-basins is analyzed and determined, and applied to construction of a watershed hydrologic model. The prediction accuracy of the karst tunnel water gushing flow is effectively improved, geological advance forecast can be conducted, and the karst tunnel water gushing prediction method is very important to tunnel karst water damage prevention and control, overcomes the defects in tunnel water gushing flow evaluation in the past, and has more practical guiding significance for engineering construction.

The invention discloses a simulation device for a vertical excavation mechanism of karst water. The simulation device comprises an excavator, a transport cart and a loader water pump. The vertical excavation aim is to mainly detect the corrosion speed and a water flow field of a karst cave. The specific operation comprises the following steps: before drilling, firstly, carrying out preliminary statistics according to geological exploration data to determine whether the karst caves in part of drill holes are in beads-shaped distribution or not and the distribution range of the karst caves, or sampling according to detailed exploration to determine whether the karst caves exist in to-be-drilled piers or not; secondly, preliminarily determining whether the karst caves exist in a constructionarea or not according to near constructed pile foundations. According to the simulation device for the vertical excavation mechanism of the karst water, data of rock components, structure and influence of environment on karst corrosion, are obtained by the simulation device; in addition, the karst water can be detected by a three-dimensional finite difference underground water current simulation program and a three-dimensional solute transporting module to obtain a distribution diagram of pollution sources and point-to-point repair is facilitated.

The invention provides a polluted karst water restoration apparatus, which comprises a flotation apparatus, a solar energy battery, an air pump, an air conduit, a microflora pipe, a bearing rope and a thousand pounder; the air pump and the solar energy battery are directly fixed on the flotation apparatus, an end part of the air conduit passes through a through hole at the central part of the flotation apparatus and is connected to an outlet of the air pump, another end part of the air conduit is connected to the microflora pipe, the thousand pounder is connected to the bottom of the flotation apparatus through the bearing rope, the solar energy battery is electrically connected to the air pump, and the polluted karst water restoration apparatus is used for the organically polluted karst water body. The polluted karst water restoration apparatus has the advantages of simple design, convenient disassembly, transport and enforcement; and is suitable for karst landforms with insufficiency of energy, complex geographical environment, and changeable water body depth; and has good effect for processing the organic pollutant organic pollutant and removing nitrogen for the water body.

The invention discloses a karstic water treating method for a diversion tunnel. According to the method, based on the state of exposed surrounding rocks during the diversion tunnel excavation process, and the position and the water pouring volume of a water pouring point of karstic water in the diversion tunnel, the position and development condition of a karstic water channel above the diversion tunnel is predicted. A drainage tunnel which is in space-crossing with the diversion tunnel is dug in the direction from the ground to the position of the karstic water channel above the diversion tunnel, the karstic water channel above the drainage tunnel is cut off by the diversion tunnel, the karstic water is drained through the drainage tunnel, and dangers to the diversion tunnel from the karstic water is eliminated, so that the structural safety of the diversion tunnel is guaranteed. According to the karstic water treating method for the diversion tunnel, be means of a comprehensive treating principle of 'relying mainly on discharging and combined with prevention, draining, intercepting and blocking', and a treating plan is made in accordance with local conditions, the potential safety hazard to the diversion tunnel from the karstic water is thoroughly eliminated, the possible occurrence of a water bursting risk in the diversion tunnel is effectively solved, and the structural safety of a water diversion system is guaranteed.

The invention discloses a karst water layered judgment and underground water level observation method. The method comprises the following steps of quantitatively monitoring the drilling fluid water return amount data at the beginning and the ending of each roundtrip meterage in an exploratory hole construction process according to a karst water layered position preliminarily judged by an underground water monitoring instrument; carrying out linear corrosion rate statistics on a rock core; obtaining the linear corrosion rate data per unit meter, drawing a linear corrosion rate change curve perunit meter, carrying out a pressurized-water test in a segmented manner, comparing a leakage data change curve per unit meter, a linear corrosion rate change curve per unit meter and a permeability data change curve per unit meter, and carrying out the preliminary analysis on the waveform change of each curve; when the curve waveform amplitude variation difference is too large, extracting the stratum water permeability change characteristics for karst water layer position layered judgment; and when the curve waveform common trend change is obvious, directly carrying out karst water aquifer layered judgment. According to the invention, the convenience of the karst water layered water level observation is improved.

The invention discloses a karst region field water sample collection device, and the device comprises a sampling cylinder, and the sampling cylinder comprises a cylinder body with an open bottom end and a closed top end; an exhaust hole is formed in the top end of the cylinder body, a spacer ring is fixedly connected to the interior of the cylinder body, and the cylinder body is divided into an upper containing cavity and a lower containing cavity by the spacer ring; a sealing plate is arranged on the spacer ring, the outer wall face of the sealing plate is matched with the inner wall face ofthe spacer ring, a sealing ring is arranged between the sealing plate and the spacer ring, and the bottom of the sealing plate is connected with a perforated bottom plate slidably installed in the lower barrel containing cavity through a connecting rod; a floating ball with the size capable of completely blocking the exhaust hole in the top end of the barrel is arranged in the upper containing cavity of the barrel, a guide rod is arranged on the floating ball, and the other end of the guide rod extends out of the barrel through the exhaust hole. The method is simultaneously suitable for sampling underground karst water and karst area field surface karst water, and has the advantages of high sampling success rate and high efficiency.