45 results about "Piezometer" patented technology

The invention provides an in-tunnel inrush water pressure monitoring method and system based on dual-acquisition multi-modal data, and belongs to the technical field of inrush water pressure monitoring. Comprising the steps of collecting video data by adopting a high-definition camera; sequentially performing water flow area intelligent segmentation, optical flow calculation and ConvLSTM time sequence prediction on the video data to predict the water flow velocity; an infrared camera is adopted to collect temperature data; self-adaptive temperature gradient calculation and temperature anomaly detection are sequentially carried out on the temperature data to predict the water flow temperature; aligning and fusing the predicted data of the water flow velocity and the water flow temperature, and constructing a water pressure calculation model to obtain a water pressure predicted value; and determining an early warning level according to the water pressure predicted value so as to adjust the monitoring mode of the inrush water pressure in the tunnel. According to the method, the infrared technology and the vision field technology are combined, accurate prediction of the inrush water pressure in the tunnel can be achieved, and a corresponding early warning monitoring mode is provided according to the prediction result.

The utility model provides a small reservoir piezometric tube orifice osmometer telescopic suspension and protection device, which comprises a support base, a lifting plate, a pressure measuring pillar and a data cable, the support base is disc-shaped, the pressure measuring pillar is arranged below the support base, and the pressure measuring pillar can move up and down. According to the scheme, through the combined design of the cable protection cylinder, the mounting plate and the rubber gasket, a stable channel and protection are provided for the data cable, water or other impurities are prevented from permeating into the device through gaps to damage electronic equipment, subsequent maintenance or replacement of the data cable is facilitated, and meanwhile, through the supporting protection insertion plate, the data cable can be conveniently and rapidly protected. The overall structural strength of the device is enhanced, an additional protective layer is provided, damage caused by accidental collision in the carrying, mounting or dismounting process is effectively prevented, and the service life of the device is prolonged.

This invention relates to the field of reservoir dam safety monitoring technology, specifically to a seepage monitoring system and method for reservoir safety monitoring, comprising: a distributed seepage pressure monitoring array, in which multiple high-precision vibrating wire piezometers are arranged on each monitoring cross section of the reservoir dam body to form a three-dimensional monitoring grid, wherein the piezometers are protected by a novel nanofiber filter layer. This invention solves the problems of traditional single-point piezometers being unable to reflect the overall seepage field and being prone to siltation by using the three-dimensional monitoring grid of the distributed seepage pressure monitoring array and the novel nanofiber filter layer. Combined with the double-weir structure of the intelligent water measuring weir group and the ultrasonic silt detection module, it avoids the accuracy deviation caused by siltation in traditional water measuring weirs. Edge computing nodes establish a three-dimensional correlation model of seepage pressure and flow rate with time using an embedded multi-parameter coupling analysis algorithm, which can automatically identify abnormal seepage patterns, solving the problem that traditional monitoring data is isolated and cannot automatically identify potential dam hazards.

The application discloses a dam foundation pressure measuring pipe construction method, and belongs to the technical field of dam foundation seepage monitoring. The steps include the following: firstly, construction parameters are determined through survey and design, and the hole is cleaned after drilling construction; a pressure measuring pipe containing a double-layer filter layer is processed and assembled, the first filter material is backfilled to serve as support before the pipe is lowered into the hole, and the second filter material is backfilled in layers to form a filter layer in the gap outside the pipe; a special filler is used to backfill bentonite balls in grains to form a first flexible sealing layer, cement bentonite slurry is poured on the upper side to form a second rigid anti-seepage layer, and a double anti-seepage system is constructed; after passing the sensitivity test, the concrete base is poured, and the protection box is installed. The method solves the problems of easy failure of traditional process sealing and uneven backfilling, improves the construction quality and the reliability of monitoring data, and is suitable for complex dam foundation geological conditions.

The utility model relates to the field of magnetostrictive piezometric tubes, and particularly discloses a magnetostrictive piezometric tube water level measuring device which comprises a measuring device, the measuring device comprises a liquid level meter and a waveguide wire, a positioning mechanism is arranged below the liquid level meter and comprises two positioning chucks, a locking screw is installed on the side surface of the left positioning chuck, and a locking nut is installed on the side surface of the right positioning chuck. And a penetrating hole is formed in the position, corresponding to the locking screw, in the positioning chuck located on the right side, limiting sliding grooves are formed in the lower surfaces of the two positioning chucks, limiting clamping plates are installed in the limiting sliding grooves, and springs are installed at the positions, located in the limiting sliding grooves, of one sides of the limiting clamping plates. The two positioning chucks are integrally in butt joint at the tank opening position of a detection position, and the two limiting clamping plates are clamped on the outer side of a pipeline under the reset acting force of the spring, so that it can be guaranteed that a measuring device installed in the positioning mechanism is installed at the center position, and it can be guaranteed that a waveguide wire is straightened under the action of a guide cable balancing weight below the positioning mechanism.

This invention provides a float-type piezometer water level monitoring device, including a piezometer tube, a retractable scale, a float, and a scale fixing sleeve. The device is buried inside the dam. Water enters the piezometer tube through the through-hole, and the water level raises the float. Under the action of the float, the retractable scale extends and retracts to be positioned at its real-time scale length. The piezometer tube is made of galvanized steel or rigid plastic. The real-time scale length is read directly. The real-time water level inside the piezometer tube is obtained by subtracting the real-time scale length from the elevation of the piezometer tube opening. This allows for determination of whether the dam's seepage pressure is within the allowable range. This device simplifies the observation process, is easy to use, eliminates the need to bring specialized instruments to the site, and has low device and maintenance costs.

The present invention provides a device and method for testing water and soil pressure in a submarine shield tunnel under tidal action. The device comprises: a C-shaped workbench; a sealing mechanism located at the bottom of the C-shaped opening, comprising a silo structure and a top cover plate, with a sealing gasket provided between the top cover plate and the silo structure; soil provided within the silo structure, with a water inlet and a groove provided on the top cover plate; a simulated tunnel structure located within the silo structure; a top loading mechanism located at the top of the C-shaped opening; a hydraulic loading mechanism for providing a simulated tidal load; a pore water pressure measuring mechanism for measuring the pore water pressure of soil layers at different heights within the soil; a water pressure gauge for measuring the water pressure load around the simulated tunnel structure, and an earth pressure gauge for measuring the earth pressure load around the simulated tunnel structure; and a control device. The present invention can simulate the influence of tidal action on water and soil pressure in a submarine shield tunnel, as well as the depth to which tidal action affects pore water pressure in the overlying stratum.

The application discloses a kind of to utilize existing power supply piezometer power supply and extraction separation potential measurement system, comprising: existing power supply piezometer, electrode system and potential acquisition control subsystem;Existing power supply piezometer is used to inject stable current field in the dam body to be measured;Electrode system includes: power supply electrode system, measurement electrode system and public electrode system;Power supply electrode system is used to connect existing power supply piezometer, forms stable current field;Measurement electrode system is used to measure the stable current field formed by any existing power supply piezometer and power supply electrode system;Public electrode system is used to connect with measurement electrode system, constitutes potential measurement loop;Potential acquisition control subsystem is internally provided with power supply and extraction separation potential collector, for emitting current and back extraction potential data body, and determine the spatial distribution of leakage hidden danger in the dam to be measured.The system can effectively reduce the influence of piezometer metal material on the propagation of electric field inside dam, so as to improve the precision of reservoir dam leakage hidden danger diagnosis in complex site.

The invention relates to an in-hole upward hole osmometer embedding device and method. The device comprises a double-layer floral tube sleeve, a fixed water stop capsule, a detachable connector and a detachable conveying rod which are sequentially connected in series. An inner sleeve of the double-layer floral tube sleeve contains an osmometer and is filled with fine sand; gravels are filled between the inner sleeve and the outer sleeve to form an inverted filter structure; the fixed water stop capsule comprises an inflatable capsule, a restoring spring and a framework barrel, and the inflatable capsule can extrude and expand to be attached to the hole wall or reset to be separated from the hole wall; the detachable connector is connected with the framework barrel through threads, and the square rotating head and the *-shaped protrusion of the conveying rod are embedded to achieve synchronous rotation; the conveying rod can be connected with the extension rod to be matched with the deep hole. The method comprises the steps of assembling the device, connecting the conveying rod, pushing to the depth, rotating and fixing the water stop capsule, and disassembling the conveying rod. According to the invention, stable placement of the upward hole osmometer, anti-clogging protection equipment of the inverted filter structure and detachable design are realized, maintenance and reuse are supported, deep hole and short-term / long-term monitoring requirements are met, and a reliable technical means is provided for osmotic pressure monitoring of underground engineering.

The utility model relates to the technical field of osmotic pressure monitoring, in particular to an osmotic pressure monitoring device. The embodiment of the utility model provides an osmotic pressure monitoring device. The osmotic pressure monitoring device comprises a protection tube, a protection unit and an osmometer, the protection pipe is provided with a protection cavity and a first water inlet hole communicated with the protection cavity, the protection unit is installed in the protection cavity, the protection unit comprises a driving assembly and a protection cover which are connected, and the protection cover is provided with a plurality of second water inlet holes communicated with the protection cavity; the osmometer is installed in the protection cavity and provided with a pressure measuring hole, and the pressure measuring hole is located in the protection cover. Under the condition that water enters the first water inlet holes, the driving assembly can drive the protective cover to extend out of the protective pipe under the action of water pressure, so that the multiple second water inlet holes are exposed out of the protective pipe. According to the osmotic pressure monitoring device provided by the invention, when the osmotic pressure monitoring device is lowered from the earth surface to the deep underground water, under the isolation of the protection pipe, shallow sand and mud can be effectively prevented from entering the protection cover to influence the detection of the osmometer.

The present application provides a mine water prevention and control risk warning method and system based on the integration of earthquakes and geology, belonging to the field of soil or rock drilling. The method includes: receiving real-time earthquake data from an earthquake monitoring module and geological exploration data from a geological exploration module, the geological exploration module including a borehole detection module and a hydrogeological analysis module; based on real-time earthquake data, geological exploration data and a preset water prevention and control risk warning model, obtaining a risk level including risk levels and corresponding water prevention and control execution measures; triggering target execution equipment such as drilling equipment to perform prevention and control according to the execution measures: at the first risk level, a monitoring hole is drilled and an optical fiber piezometer is installed to collect seepage pressure data; at the second risk level, a grouting hole is drilled to grout and seal the fissure; at the third risk level, a water diversion hole is constructed in the aquifer to guide groundwater to a safe area through a drainage pump group. This method integrates multi-source data to achieve graded and precise warning and prevention.

The invention provides a diving initial water level measuring device and method for a rock hole wall, the diving initial water level measuring device comprises a measuring sleeve and a water pressure gauge, the outer wall of the measuring sleeve is connected with a sealing ring group, the water pressure gauge is located above the sealing ring group, and the sealing ring group comprises a first sealing ring and a second sealing ring which sleeve the outer wall of the measuring sleeve in the axial direction; an air inlet channel and an air outlet channel which extend in the axial direction are formed in the pipe wall of the measuring sleeve, and a first air hole and a second air hole are formed in the measuring sleeve. The outer wall of the measuring sleeve is connected with the sealing ring group, so that a semi-dry and semi-wet drilling mode is realized, a clear water slag carrying function is reserved, identification difficulty caused by full-hole mixing is avoided, and the initial diving water level is distinguished while drilling under the condition of clear water drilling. By means of the air inlet channel and the air outlet channel in the pipe wall of the measuring sleeve, dynamic balance of the sealing effect of the sealing ring set is maintained, and the measuring accuracy of the water column pressure formed after diving infiltration is improved.

The invention provides an intelligent monitoring method and system for the motion posture of an underwater vehicle based on an MEMS, and relates to the technical field of measurement, and the method comprises the steps: collecting a multi-dimensional MEMS signal; strapdown integration is carried out through the angular velocity of the gyroscope, the acceleration of the accelerometer and the state of the last sequence of time; taking the magnetic field intensity of a magnetometer and a water depth signal of a piezometer as environment disturbance signals, and performing neural residual analysis according to a historical observation window signal, the environment disturbance signals and a preprocessing result; correcting the first prediction state; performing multi-channel quality index calculation on the multi-dimensional MEMS signal, and inputting the confidence coefficient vector, the second prediction state and the observation model into a calculation gain matrix; and performing weighted fusion of the first prediction state and the second prediction state according to the gain matrix, and outputting a motion attitude monitoring result. According to the invention, the technical problem of low attitude monitoring precision of the underwater vehicle in the prior art can be solved, and the technical effect of improving the attitude monitoring precision is achieved.

The invention provides a side slope state monitoring method and system for monitoring a side slope, relates to monitoring of the side slope state and / or early detection of side slope instability, and is used for taking prevention measures of side slope instability in time. The method comprises the following steps: acquiring volumetric water content from a plurality of sensors arranged on a slope; determining a safety factor of the slope using the volumetric water content based on a linear regression model obtained from the simulated volumetric water content corresponding to the humid meteorological conditions; and generating an alert in response to the safety factor being below a safety threshold, the alert indicating that a slope instability may occur. The system includes a controller arranged to perform the method and a sensor arranged on a selected slope and arranged to provide volumetric water content. The sensors can comprise osmometers arranged at the slope top and the slope toe of the selected slope and capacitive moisture sensors distributed at different elevations of the selected slope. According to the invention, a slope evaluation solution with relatively high cost effectiveness can be provided.

The application discloses a reservoir seepage pressure data intelligent analysis and early warning method, extracts the seepage pressure value corresponding to each water level value at each moment from the preliminary screening database; combines the seepage pressure measuring point pipe mouth and the sensor installation elevation data to preliminarily judge and eliminate logical error data; uses the 3Sigma principle to eliminate abnormal seepage pressure data under each water level; adopts feature engineering and Z-score method to generate features and normalize them; maps the relationship between the reservoir water level and the piezometer water level through support vector regression fitting, calculates the model residual and generates the early warning range; finally, compares and analyzes the seepage pressure data and the early warning range, and starts the corresponding early warning mechanism according to the difference result. Based on the characteristics of the reservoir dam seepage pressure monitoring data, the machine learning technology and various statistical techniques are integrated, the accuracy and reliability of data analysis are significantly improved, and the application is especially suitable for the field of reservoir dam seepage pressure data analysis and early warning which needs high precision.

The utility model provides a dam uplift pressure monitoring device which comprises a pipe orifice device and a pressure measuring pipe which are connected up and down, and the pipe orifice device is composed of an upper half part and a lower half part which are communicated up and down; the upper half part is composed of a vertical pipe and a transverse pipe, the upper end of the vertical pipe is provided with a liquid level pipe connector and an osmometer cable outlet, an osmometer is arranged in the vertical pipe, the inner end of the transverse pipe is communicated with the side face of the vertical pipe, the outer end of the transverse pipe is a pressure meter connector, the lower half part is in threaded connection with the upper end of the pressure measuring pipe, the connecting position is wrapped with a raw material belt, and connector water stop sealing is conducted; the liquid level pipe connector is connected with the lower end of the liquid level pipe, a cable of the osmometer is led out of the osmometer cable outlet, and the pressure meter connector is provided with a pressure meter. The dam uplift pressure detection device has the beneficial effects that the structure is ingenious, the dam uplift pressure can be monitored, and the detection device can be calibrated, so that the accuracy of actual monitoring is effectively improved.

The present invention discloses a simulation method for the vertical leakage and damage process of water and sand in a ground-connected wall supporting foundation pit, comprising the following steps: embedding a defective card plate into a transparent outlet pipe, loading sand samples in layers in a transparent experimental box and compacting them in layers, installing a piezometer, and calculating the critical head difference of each layer of sand sample after the sand sample is saturated and consolidated; starting a simulation experiment, obtaining experimental data of the piezometer and the water and sand leakage quality, and determining the leakage and damage state of each layer of sand sample; calculating the additional unbearable head difference and the measured leakage and damage thickness of the critical layer sand sample, and then obtaining the time-varying data of the total leakage height of the sand layer during the simulation process; and using a visualization tool to establish a time-varying graph of pore water pressure, water and sand leakage quality, and the total leakage height of the sand layer. The simulation method established by the present invention can realize the simulation and data visualization of the leakage process, is helpful to explore the law and time of vertical leakage and damage of water and sand, can reflect the complexity of actual leakage, and is conducive to the development of research and teaching experiments.

The invention discloses a deepwater spiral soil sampling dredging ship and a dredging method, and the dredging ship comprises a ship body, the middle part of which is provided with a vertically through central hole; a lifting device is arranged on the ship body; the desilting device comprises a sludge conveying barrel and a drainage cover which is fixedly arranged at the bottom of the sludge conveying barrel and communicated with the sludge conveying barrel, the sludge conveying barrel extends out of the center hole from bottom to top and is connected with a lifting device, and the lifting device drives the desilting device to move up and down; a first air vent is formed in the top of the sludge conveying barrel and is connected with an air supply device through a pipeline; a dredging mechanism is arranged in the drainage cover, a mud conveying mechanism is arranged in the mud conveying barrel, a mud outlet mechanism is arranged at the mud outlet end, corresponding to the mud conveying mechanism, of the mud conveying barrel, and mud dug by the dredging mechanism is conveyed upwards through the mud conveying mechanism and discharged through the mud outlet mechanism; a water pressure gauge is arranged on the outer side of the drainage cover, and a first air pressure sensor is arranged in the drainage cover. The problems that an existing desilting device is complex in aftertreatment process, large in energy consumption and large in pollution are solved.

The present disclosure discloses a multi-functional integrated testing attachment for a rotational rheometer, comprising a testing attachment and a fixing plate. The testing attachment is divided into a stage assembly and a testing assembly, the testing assembly comprises a micro-pore water pressure gauge, a microseismometer, and an acoustic emission instrument. The stage assembly comprises the upper section of the stage assembly and the lower section of the stage assembly, the upper section of the stage assembly is arranged above the lower section of the stage assembly. The microseismometer is arranged externally on the upper section of the stage assembly and is elevated above the upper section of the stage assembly. The present disclosure adopts the multi-functional integrated testing attachment for a rotational rheometer, the main body of the stage is fixedly connected to the microseismometer through the fixing plate.

The utility model relates to a large-scale grouting curtain inside and outside hydrological monitoring system, and belongs to the technical field of mine production equipment. The technical scheme of the utility model is as follows: a surface drilling hydrologic monitoring substation (3) is connected with a data acquisition unit (2) through a GPRS (General Packet Radio Service) network; the data acquisition unit (2) is connected with an industrial personal computer (1); the drill hole water pressure gauge (5), the water sump water level gauge (6) and the open channel flowmeter (7) are connected with the underground hydrologic monitoring substation (8) through communication cables, and the underground hydrologic monitoring substation (8) is connected with the industrial personal computer (1) through the optical fiber ring network (4). The beneficial effects of the utility model are that the effect of the grouting curtain is detected by using multi-parameter comprehensive hydrological monitoring, the mine production safety is ensured, and the underground hydrological condition is monitored in real time in the production and construction process, so that the accurate early warning of the water disaster event is realized, and the safe operation of the mine production is ensured.

This utility model provides a monitoring instrument for piping seepage and seepage lines in dams, belonging to the field of monitoring and early warning equipment. It includes an integrated probe rod, a data acquisition unit, and a power supply module. The power supply module is electrically connected to the integrated probe rod, and the integrated probe rod is electrically connected to the data acquisition unit. By integrating the probe rod body, vibrating wire piezometer, B electrode, N electrode, M electrode, and A electrode into an integrated probe rod, this utility model can simultaneously achieve "seepage location + dynamic quantification of seepage + water level measurement," providing real-time and accurate three-dimensional seepage channel coordinates, and offering more comprehensive early warning indicators for dam safety.

The invention discloses a coal mine shaft seepage water pressure testing mechanism, and relates to the technical field of coal mine shaft measurement, and the coal mine shaft seepage water pressure testing mechanism comprises a rectangular frame, a lifting mechanism and a drilling mechanism; a rectangular frame; the lifting mechanism is arranged on the side face of the rectangular frame; the drilling mechanism is arranged on the side face of the lifting mechanism; the drilling mechanism comprises a drilling cylinder arranged on the lifting mechanism, a sharp-corner pad is fixedly connected to the side end of the drilling cylinder, a vertical plate is assembled in the drilling cylinder in an inserted mode, a pair of protruding rods is fixedly connected to the side, close to the sharp-corner pad, of the vertical plate, semicircular discs are fixedly connected to the side ends of the two protruding rods, and the two semicircular discs are arranged at the side end opening of the drilling cylinder. The other side of the vertical plate is rotationally connected with a guide rod, the middle of the guide rod is fixedly connected with a limiting disc, and the limiting disc is in threaded connection with the inner wall of the drilling barrel, so that an operator can conveniently measure the coal mine shaft seepage water pressure, and the water pressure gauge is wrapped and protected by the drilling barrel and can be prevented from being collided and damaged by external objects; the multi-point seepage water pressure test on the inner wall of the coal mine shaft is facilitated.

The utility model relates to the technical field of highway slope safety monitoring equipment, in particular to an automatic monitoring system for highway slope diseases. Comprises: a rain gauge is arranged on a first horizontal step; the GNSS monitoring station is arranged at a second horizontal position; a side slope slope is arranged between the first horizontal step and the second horizontal step, and the side slope slope is provided with a side slope angle; the anchor cable meter is obliquely inserted into the slope body from the slope angle; the pore water pressure gauge arrangement assembly is arranged on the second horizontal position; the pore water pressure gauge arrangement assembly extends into the slope body from the second horizontal position through the annular assembly and is connected with a built-in sleeve, and a pore water pressure gauge is arranged in the built-in sleeve; the data control receiving module is integrated on the GNSS monitoring station; the data control receiving module is electrically connected with the rain gauge, the GNSS monitoring station, the anchor cable meter and the pore water pressure gauge, by adopting the configuration mode of the system, all the instruments are high in relevance and reasonable in arrangement, and the system has the capacity of dealing with slope diseases and is more stable in monitoring.

The present invention discloses a piezometer for monitoring the safety of reservoir dams, which relates to the field of safety monitoring technology. The piezometer comprises an outer shell that provides protection, a water seepage hole arranged at the end of the outer shell, a diaphragm for detecting and judging water pressure, an electromagnetic coil for detecting the vibration frequency of a steel string connected to the diaphragm, and a tension adjustment mechanism for detecting and adjusting the tension of the steel string in real time to ensure detection accuracy. This solution adds a tension adjustment mechanism to the end of the steel string, which can detect the tension of the steel string in real time. When the tension of the steel string is affected by external factors or changes in its own conditions, the tension can be adjusted in real time to ensure the stability of the steel string during subsequent use. Secondly, considering the basic principle of using the steel string for detection, it is necessary to consider the fixation and movement of the end. This solution simultaneously ensures the real-time adjustment and fixation of the steel string according to actual needs, thereby ensuring that the steel string can work correctly.

The application discloses a combined installation protection device for an inclinometer and a piezometer and a use method thereof, and relates to the technical field of safety monitoring of water conservancy and hydropower. The combined installation protection device for the inclinometer and the piezometer comprises an inclinometer tube and a protection head, the inclinometer tube comprises a plurality of sleeve tubes, the sleeve tubes comprise an outer sleeve tube and an inner sleeve tube, a hollow interlayer is formed between the outer sleeve tube and the inner sleeve tube, an inclinometer is slidably arranged in the inner sleeve tube, the protection head comprises a conical section and a cylindrical section, one end of the cylindrical section is connected with the sleeve tube located at the bottom, a sealing plate for separating the sleeve tube from the cylindrical section is arranged at the top of the cylindrical section, a piezometer is arranged in the cylindrical section, and a connecting cable of the piezometer passes through the sealing plate and the hollow interlayer and extends out of the inclinometer hole. The combined installation protection device for the inclinometer and the piezometer can ensure installation efficiency and service life and reduce the construction cost of combined installation of the inclinometer and the piezometer.

The invention relates to the technical field of pipeline detection, in particular to a pipeline osmometer mounting device and a mounting method thereof.The mounting device comprises a supporting mechanism, a positioning piece, a reaming mechanism and a processing mechanism; an operator firstly uses the positioning piece and the supporting mechanism to mount the reaming mechanism on a pipeline, uses the processing mechanism to process the mounting surface of the mounting pipe into an arc-shaped structure, and then places the mounting pipe below the reaming mechanism to broach the pipeline of the reaming machine through the mounting pipe; the structure of the positioning piece is changed, the pipeline is processed, so that the opening edge of the pipeline abuts against the interior of the installation pipe, the equipment is removed, the interior and the exterior of the installation pipe are welded, the osmometer is installed, the equipment solves the problems of gaps between welding seams and welding difficulty, and the equipment has good practicability and economical efficiency and is suitable for popularization and application. And popularization and use of equipment are facilitated.

A multistage-in-one-hole pore water pressure observation device, comprising: a plurality of digital piezometer probe assemblies (10) arranged in a monitoring hole (1) from bottom to top, an inter-stage hydraulic isolation cylinder assembly (2) connected between each two adjacent digital piezometer probe assemblies (10), and watertight joint assemblies (30) used for connecting adjacent digital piezometer probe assemblies (10) and inter-stage hydraulic isolation cylinder assemblies (2). Each digital piezometer probe assembly (10) comprises a hollow water-permeable cylinder (11), a pore water pressure meter assembly (12) arranged in the water-permeable cylinder (11), a high-permeability material (13) filled in a gap between an inner wall of the water-permeable cylinder (11) and the pore water pressure meter assembly (12), and a water-permeable geotextile (14) wrapping the high-permeability material (13). Multi-core cables (40) are electrically connected between the adjacent pore water pressure meter assemblies (12). The device has the characteristics of integrated design, prefabrication and installation of the pore water pressure monitoring apparatuses and the backfill material, thereby simplifying an on-site installation process and reducing monitoring costs. Also provided is a mounting method for the multistage-in-one-hole pore water pressure observation device.

The invention provides a tunnel water inflow, water pressure and water temperature rapid testing device which comprises a measuring pipe joint, a data collecting pipe joint and a pumping system, the measuring pipe joint and the data collecting pipe joint are connected through a pipe joint connecting structure, and an end water inlet structure is arranged at the end of the measuring pipe joint. A device hole inner fixing structure and a bag type hole blocking structure are arranged on the outer side of the measuring pipe joint, and a plurality of water pressure sensors are arranged in the measuring pipe joint; a water pressure gauge, a flow velocity meter, a water thermometer and a data storage and transmission module are arranged on the data acquisition pipe joint, and liquid is pumped to the bag type hole plugging structure through the pumping system to form hydraulic pressure for hole sealing. According to the method, the water inflow and the water pressure are tested through advanced drilling in combination with the advanced geological forecast result, the testing efficiency is high, the speed is high, the accuracy rate is high, and the influence on the construction environment and progress is small. The device is comprehensive in function, high in integration, capable of measuring hydrodynamic pressure, hydrostatic pressure, flow velocity, water temperature and flow, convenient to transport and assemble, reusable and capable of saving resources.

This invention provides a two-dimensional consolidation coefficient determination device and method based on a physical information neural network, solving the problems of current methods that cannot simultaneously detect consolidation coefficients in both vertical and horizontal two-dimensional directions, and whose detection process is cumbersome and requires improvement in accuracy. The device includes an outer frame, within which a measuring cylinder is fixed. The inner cavity of the measuring cylinder serves as a pressing station. Both the upper and lower openings of the measuring cylinder are sealed with permeable stone covers. Several pore water pressure gauges are installed on the side walls of the measuring cylinder. Hydraulic pumps are pressed against the outer sides of both the upper and lower permeable stone covers. The hydraulic pumps are electrically connected to a hydraulic control system. A control panel is mounted on the outer wall of the outer frame, and the hydraulic control system is connected to the control panel via a circuit. This invention selects two-dimensional consolidation theory as the basis for determining the consolidation coefficient, avoiding the use of empirical formulas. While ensuring calculation accuracy, it simplifies the steps for obtaining the soil consolidation coefficient to the greatest extent possible, and also has good universality.

The utility model provides an osmotic pressure water level measuring device, which relates to the technical field of osmotic safety monitoring and comprises a pressure measuring tube, a probe, a connecting line, a driving module, a rotating wheel, a storage battery, an external power supply and a base. The base is arranged above a water level to be measured, the pressure measuring pipe is vertically arranged below the base, the rotating wheel is fixed above the base, the rotating wheel is fixedly connected with one end of the connecting line, the connecting line is wound on the rotating wheel, the other end of the connecting line is fixedly connected with the probe, and the probe is fixedly connected with the pressure measuring pipe. When the rotating wheel rotates, the probe moves downwards through the interior of the piezometric tube under the action of gravity to make contact with the water surface, the driving module comprises a motor and a controller and is used for driving the rotating wheel to rotate and work, and the storage battery is charged and discharged through the external power source and supplies power to the motor. According to the utility model, the problem of unstable data caused by the influence of environmental factors on equipment in a traditional measurement mode is solved.