501 results about "Cave" patented technology

A design method for preventing and controlling water inrush catastrophe in tunnels and techniques for optimizing actual tunnel construction, specifically: discretizing calculation model into material points, setting virtual boundary layers outside boundary of calculation model; selecting size of horizon of material points to form neighborhood matrix of material points; making crustal stress equivalent to stress boundary condition, making karst cave water pressure equivalent to normal pressure, and converting displacement constraint and tunnel support into displacement boundary conditions; solving speed and displacement of material point, determining whether bonds of all material points meet failure condition, recording local damage situations; after initial balance calculation is stable, simulating tunnel construction process by using material point dormancy method; and according to physical values of optimization parameters of actual tunnel construction obtained by simulation results that meet the requirements of water inrush catastrophe prevention and control, implementing the optimized actual tunnel construction.

The invention discloses a sea water area karst cave group transient electromagnetic collaborative investigation data processing method and system, and the method comprises the steps: transmitting a wide frequency spectrum excitation signal to the seabed through a shipborne transient electromagnetic transmitting system, and synchronously collecting a secondary field attenuation signal responded by a seabed medium through a pull-type receiving array, meanwhile, a distributed sensor network is arranged at a preset seabed node to collect background noise base data; performing motion attitude compensation on the secondary field attenuation signal to generate transient electromagnetic response data; constructing an adaptive filter based on the background noise base data, performing noise suppression processing on the transient electromagnetic response data, and outputting noise suppression data; and performing space-time alignment on the noise suppression data of the towed array and the seabed node data to form a three-dimensional space sampling data set. According to the method, high-precision fusion of deep and shallow detection data and quantitative evaluation of the stability of the karst cave are realized, and the detection reliability and the engineering risk early warning capability of the complex ocean karst area are remarkably improved.

The invention relates to the technical field of tunnel construction, and discloses a coal mine goaf karst tunnel construction method which comprises the following steps: S1, performing three-dimensional scanning on the axis and the periphery of a tunnel by adopting a high-frequency geological radar in combination with aerial survey of an unmanned aerial vehicle, and accurately positioning the boundary of a goaf, the development form of a karst cave and filler distribution; and S2, integrating a seismic wave reflection method, drilling and coring data and a geological sketch result, constructing a three-dimensional geological model, and dynamically predicting a potential water inrush and mud inrush risk area. According to the method, a high-frequency geological radar is combined with aerial survey of an unmanned aerial vehicle, three-dimensional scanning is conducted on the axis and the periphery of a tunnel, geological radar data, a point cloud model and tunnel design BIM are integrated, the boundary of a goaf (the error is smaller than or equal to 0.3 m) and the karst cave form are marked, and the collapse risk level is predicted based on rock mass mechanical parameters (compressive strength and fracture density) and hydrological data (seepage paths). Therefore, the method has the advantages of advanced detection, multi-source data fusion and the like, and the resolution of geological forecast is improved.

The invention discloses a single-hole pressure adjusting method, device and equipment for a water curtain test of an underground water-sealed cave depot and a storage medium, and relates to the technical field of geological engineering.The method comprises the steps that firstly, a rock mass acoustic impedance spectrum is collected, intrinsic mode decomposition is carried out to extract geologic feature components, and the rock mass acoustic impedance spectrum is obtained; processing the target pressure value, the current pressure value and the geologic feature component by using a pressure-opening coupling model based on acoustic feature extraction, time sequence dynamic analysis and physical constraint decoding to obtain a reference valve opening; then, a water curtain hole valve is adjusted according to the reference valve opening degree, and the pressure change acceleration is monitored in real time; calculating an opening compensation increment and a damping attenuation coefficient based on the pressure change acceleration, and further generating a target valve opening; and finally, the valve is adjusted to the target opening degree, so that the water curtain hole reaches the target pressure value. According to the invention, high-precision self-adaptive adjustment of the pressure of a single water curtain hole can be realized in the water curtain test of the underground water-sealed cave depot.

The invention provides a karst cave group detection method and device in shield construction, and the method achieves the comprehensive detection of karst caves through a transient electromagnetic and sound wave array composite wave field detection mode, and improves the detection accuracy and detection efficiency of the karst cave group. And feature extraction is performed on the composite wave field detection data through a cross-physical coupling model, a karst cave probability model is established, and quantitative evaluation of a karst cave detection result is realized. When the karst cave possibly exists in the construction direction of the shield tunneling machine, the distribution prediction direction of the karst cave is further determined, and the shield tunneling machine is prevented from entering the karst cave area blindly in the tunneling process. Through the multi-source sensing array carried on the shield tunneling machine, equipment parameters during operation of the shield tunneling machine are collected in real time, potential construction anomalies can be found easily, and the accuracy and timeliness of karst cave detection are improved. Combined analysis is carried out on the composite wave field detection data and the operation parameters of the shield tunneling machine through the risk assessment model, a karst cave risk prediction value is determined, and the accuracy of karst cave risk assessment is improved.

The invention provides an experimental device and method for simulating gas invasion well control of a complex karst cave type stratum. The device comprises a well drilling simulation system, a liquid-gas simulation system and a computer control system. The computer control system simulates an overflow and leakage coexistence scene by adjusting the well drilling simulation system and the liquid-gas simulation system, and in actual well drilling, if overflow and leakage occur, corresponding well drilling parameters can be collected according to overflow signals generated by actual well drilling; and corresponding control instructions and control parameters are output through the drilling parameters and the overflow and leakage control strategy, and the treatment effect and treatment efficiency of overflow and leakage coexistence are improved.

The invention discloses large open type karst cave local rock forming equipment and method, and belongs to the technical field of karst area pile foundation construction. The problems that in traditional cloth bag pile construction, the hole collapse risk is high, the bearing capacity is insufficient, and grouting displacement of a steel reinforcement framework occurs are mainly solved. According to the equipment, grout overflow holes distributed in a staggered mode are preset in a variable-diameter hollow steel cylinder body, and a grout overflow groove is formed in the variable-diameter part of the cylinder bottom; the diameter of the upper part of the coarse structure is larger than that of the lower part of the coarse structure; the steel sleeve is anchored at the top of the steel cylinder and has larger diameter; the cylindrical plastic sleeve is adhered to the inner wall of the steel cylinder; the grouting pipe is arranged in the cylindrical plastic sleeve in a penetrating manner; and the annular hoop surrounds the outer side of the fiber bag through the plastic short pipe to form a bamboo-shaped constraint structure. The upper end of the fiber bag is anchored to the steel sleeve, and the lower end of the fiber bag is anchored to an anchor hole in the bottom of the steel cylinder. The equipment is used for large open type karst cave pile foundation construction, the hole collapse resistance is improved through a composite structure of the steel cylinder and the fiber bag, the bearing capacity is increased, and grouting displacement is prevented.

The invention discloses a cast-in-place pile pouring process quality detection method capable of sensing ERT on the inner side and the outer side. The cast-in-place pile pouring process quality detection method comprises the steps that conductivity information of the inner side and the outer side of a cast-in-place pile is collected through an electrical resistance tomography electrode array arranged at the bottom of a cast-in-place pile feeding guide pipe; the two-dimensional position information of the electrical resistance tomography electrode array in the pile hole in the horizontal direction is positioned through an ultrasonic transducer array arranged at the bottom of the feeding guide pipe; the depth information of the electrical resistance tomography electrode array is acquired through an incremental encoder and a roller which move along with the feeding guide pipe in the vertical direction; transmitting the obtained conductivity information, the two-dimensional position information and the depth information to a computer imaging system to obtain a three-dimensional conductivity distribution image of the cast-in-place pile, and analyzing the obtained image to realize quality detection of the cast-in-place pile. Total cross-section imaging of concrete and a reinforcement cage can be achieved, and the positions and sizes of karst caves and collapse possibly existing in the pile hole wall can be accurately measured.

The invention belongs to the technical field of civil engineering, and discloses a karst area shield tunnel modeling method based on real data, which comprises the following steps: S1, collecting real geological exploration data of a tunnel construction area, and obtaining point cloud data of a karst cave and a stratum represented by three-dimensional space coordinates; s2, preprocessing the collected point cloud data, including removing noise points and normalizing coordinates; s3, reconstructing a three-dimensional geometric model of the karst cave based on the point cloud data, analyzing geometric features of the karst cave and outputting a three-dimensional model file; s4, in finite element software, establishing a three-dimensional model of the shield tunnel and the stratum according to the design parameters; and S5, importing the reconstructed karst cave three-dimensional model into Abaqus, and integrating the reconstructed karst cave three-dimensional model with a shield tunnel and a stratum model to realize karst region shield tunnel integrated digital modeling. According to the method, the authenticity, efficiency and compatibility of geological modeling are improved, and a digital basis is provided for subsequent simulation analysis and engineering design.

The invention provides a complex fractured rock mass grouting geologic model modeling method which comprises the steps that grouting related information is obtained, a grouting geologic model is built based on the grouting related information, and the grouting geologic model comprises a grouting geologic structure model, a grouting environment parameter model and a grouting engineering characteristic model. According to the method, various grouting related information is expressed as a grouting characteristic model through a large-area extrapolation modeling method, a rock mass parameter determination-random modeling method and a discrete fracture network modeling method; comprise a grouting geologic structure model (a rock mass model, a fracture model and a karst cave model), a grouting environment parameter model (a rock mass strength model and a rock mass permeability rate model) and a grouting engineering characteristic model (a slurry material partition model and a grouting pressure model), and verification is carried out based on project field examples of the Zhuang hydro-junction. It is proved that under the condition that the geological condition and the actual grouting construction method are fully considered, the accuracy of the analysis result of the grouting geological model is high.

The invention belongs to the technical field of tunnels, and particularly relates to a treatment method for a building door tunnel penetrating a karst underground river reach, which comprises the following steps: step 1, multi-source geophysical prospecting fusion investigation: aiming at the tunnel karst underground river reach and the range of 500m around the tunnel karst underground river reach; the method comprises the following steps of: delineating a karst abnormal area by adopting semi-aviation transient electromagnetism; screening a strong corrosion area by adopting a depression analysis method; verifying parameters of the abnormal area through surface drilling and coring; identifying surface hydrology, lithology and seepage data characteristics through unmanned aerial vehicle-mounted high-resolution multispectral and thermal infrared cooperative remote sensing; karst water dynamic conditions including underground water flow velocity, flow direction and permeability coefficient, corrosion evolution characteristics including cavern forming time and expansion rate, and key physical and mechanical parameters including cavern filler porosity, permeability coefficient, surrounding rock integrity coefficient, uniaxial compressive strength, elastic modulus and Poisson's ratio are obtained. According to the treatment method for the building door tunnel to penetrate through the karst underground river section, the karst space characteristics are clearly presented through the arrangement of the treatment method for the building door tunnel to penetrate through the karst underground river section.

The application discloses a pressurized mountain mine cave outburst pollution water repair system, which comprises a mountain, a mine cave outflow outlet on the mountain and a gully formed along the trend of the mountain, the gully is located downstream of the mine cave outflow outlet, a mine cave outflow collection pool and at least one stage of sewage treatment devices are sequentially arranged in the gully from high to low in elevation, the sewage treatment devices of each stage each comprise a repair device and a monitoring pool connected to a downstream end of the repair device, the monitoring pool is provided with a standard water outlet directly discharging into the gully and a non-standard water outlet leading into the repair device of the next stage of sewage treatment devices, and the standard water outlet and the non-standard water outlet are each provided with an electric valve. The application can flow through the repair device by using the potential energy of the pollution water, does not need to increase a power source, and realizes the technical effect of reasonable use of the repair material according to the content of the pollutants by means of multi-stage repair and monitoring, which ensures complete repair and avoids unnecessary waste of the repair material.

The invention discloses a construction method of a flat pilot tunnel in a karst landform super-large section tunnel chamber. The construction method comprises the following steps: 1) geological investigation before construction; 2) advanced geological forecast; (3) a flat pilot tunnel is excavated; (4) primary supporting is conducted; (5) treating a karst cave and a karst cavity; (6) water prevention and drainage measures are taken; (7) monitoring and measuring; and 8) ecological restoration. The method has the following technical advantages that 1, disasters such as collapse, water bursting and mud bursting in the construction process are effectively avoided through detailed geological survey, advanced geological forecast and a reasonable construction scheme, and the safety of constructors and equipment is guaranteed; 2, a proper excavation method and supporting measures are adopted, the construction process is optimized, the construction period is shortened, and the construction efficiency is improved; loss caused by geological disasters and improper construction is reduced, and engineering investment is saved; ecological restoration is emphasized, damage of construction to the surrounding environment is reduced, and coordinated development of engineering construction and environmental protection is achieved.

The invention discloses a method and system for simulating a reservoir crustal stress field, and the method comprises the steps: obtaining the development characteristics of a natural fracture in a to-be-researched region, and constructing a fracture model for simulating the actual distribution state of the natural fracture; acquiring a seismic data volume of the to-be-studied area and development, distribution and seismic response characteristics of the holes, and on the basis of the seismic data volume and the development, distribution and seismic response characteristics of the holes, acquiring seismic response characteristics and spatial distribution characteristics of the karst caves and the natural fractures by combining the fracture model, and further acquiring distribution characteristics of the fractured karst so as to construct a fracture-cavity model for simulating the actual fracture-cavity distribution state; the method comprises the following steps: respectively acquiring dynamic parameters and static parameters of rock mechanics of a to-be-studied area, acquiring a correlation between the dynamic parameters and the static parameters, and establishing a mechanical parameter field model based on the current correlation in combination with a fracture-cavity model to obtain a crustal stress field simulation model of the to-be-studied area. According to the invention, effective simulation of the reservoir crustal stress field is realized.

The invention provides a karst cave distribution detection method based on elastic wave CT and monitoring data fusion. The method comprises the steps that initial surrounding rock elastic wave characteristic data and geological data are collected to serve as basic data; periodically carrying out elastic wave CT detection to obtain dynamic wave velocity data of the surrounding rock, and collecting geological environment monitoring data and construction condition parameter data in real time; carrying out anti-interference processing on the elastic wave CT detection data and the monitoring data, and based on the processed elastic wave CT wave velocity data, extracting signal features of the karst cave through a feature recognition model; and fusing the processed elastic wave CT data, the synchronized monitoring data and the construction condition parameters, constructing a three-dimensional karst cave distribution model, and determining a karst cave distribution condition based on the constructed distribution model. According to the method, the propagation difference of the elastic waves in the karst cave and the surrounding rock medium is captured through the elastic wave CT, and accurate detection of karst cave distribution is achieved by combining monitoring data fusion optimization.

The invention discloses a retreating type segmented sleeve valve pipe grouting process for karst treatment, and belongs to the technical field of karst stratum reinforcement. The process comprises the steps of drilling construction, device arrangement, grouting positioning, segmented grouting, retreating type displacement grouting and ending treatment, and is characterized in that a grouting core pipe adopts a sealing telescopic connecting structure of an inner core pipe and an outer sleeve, and is matched with a telescopic driving piece, an elastic connecting piece and a first pressure sensor; dynamic adjustment of the size of a grouting space and real-time monitoring of pressure are achieved, and the risk of excessive or insufficient grouting is avoided in an intermittent grouting mode; the vent pipe and the one-way valve are staggered, pressure in the pipe is balanced, the one-way valve is assisted to rapidly retract, and backflow and slurry mixing are avoided; and the optional rotating device and the stirring piece cooperate to prevent slurry deposition, so that the grouting uniformity is improved. The grouting precision and controllability are remarkably improved, safety and stability of construction are comprehensively guaranteed, the grouting filling compactness and long-term stability are optimized, and the method is suitable for layering of karst caves in different forms.

The invention relates to the technical field of geological disaster-causing identification, and discloses a big data-based limestone cave hidden disaster-causing factor identification method. The method comprises the following steps: acquiring geological structure data, hydrological monitoring data and earth surface deformation data of a limestone area to form a multi-source geological monitoring data set; performing space-time alignment processing on the multi-source geological monitoring data set to generate standardized geological data with a unified space-time reference; geologic structure features, hydrologic dynamic features and earth surface displacement features are extracted from the standardized geologic data, and a three-dimensional geologic feature space is constructed; based on the three-dimensional geologic feature space, calculating a combined anomaly index of a geologic structure anomaly degree, a hydrologic dynamic anomaly degree and a surface displacement anomaly degree; establishing a geological anomaly event detection model according to the joint anomaly index, and identifying a potential hidden disaster-causing area; performing multi-scale feature fusion on the hidden disaster-causing area to generate a disaster-causing risk level map; and outputting a lime karst cave hidden disaster-causing factor identification result based on the disaster-causing risk grade map.

The invention belongs to the technical field of pile foundation construction, and particularly relates to a scene sound analysis method for interaction of a pile and a karst cave in a construction process, which comprises the following steps of: step 1, high-precision karst cave form detection: arranging crossed measuring lines with the pile foundation as a center, the length of the measuring lines being more than or equal to 20m and the spacing being less than or equal to 1m, synchronously adopting a high-energy acceleration tamper and the impact energy being more than or equal to 50kJ, active source surface waves are excited, the impact frequency ranges from 2 Hz to 5 Hz, environment noise is collected to serve as passive source surface waves, a three-component detector array is used for receiving, and the sampling rate is larger than or equal to 500 Hz. According to the method for analyzing the interaction scene sound of the pile and the karst cave in the construction process, by setting the method for analyzing the interaction scene sound of the pile and the karst cave in the construction process, wave velocity changes in the vertical direction and the horizontal direction and anomalies in high-speed and low-speed areas are analyzed, and the thickness of a covering layer and the burying depth of bed rock are deduced; the development depth, the scale and the space distribution condition of the monolith and the karst caves are determined.

The invention provides a karst area grouting hole sealing anti-seepage reinforcement cage which comprises a main rod, a dowel bar, an expansion arc-shaped steel plate and a reinforcement cage body. The main rod can move axially and is located in the center of a pile hole, and the reinforcement cage is arranged around the main rod. The dowel bar is connected between the main rod and the expansion arc-shaped steel plate in a hinged mode and used for converting axial movement of the main rod into radial expansion movement of the expansion arc-shaped steel plate so as to block karst cave cracks of the pile hole wall. The main rod drives the staggered arc-shaped steel plates through the hinged dowel bar, and the main rod presses downwards to expand the steel plates in stages to form a closed annular sealed cabin; after expanding, the steel plate directly extrudes hole wall rock mass, a cement paste leakage channel is physically blocked, karst cave cracks are blocked in real time, and concrete loss is reduced; meanwhile, the steel plate exerts radial constraining force on the fractured rock mass, and hole collapse caused by construction disturbance is restrained; and plugging and lowering of the reinforcement cage are completed synchronously, and the pre-grouting construction period is shortened.

The invention discloses a karst detection method based on blasting seismic wave component analysis. According to the method, based on the propagation characteristics of shear waves (transverse waves and S waves) in fluid, a blasting seismic source generated in the tunnel excavation process is used as an active signal source, existence of a karst cave area is preliminarily judged through multi-point synchronous monitoring and analysis of S wave energy proportion changes, arrival time difference, energy distribution and the like of P waves and S waves are analyzed according to the karst cave area, and the karst cave area is determined. The method achieves the recognition and judgment of the spatial distribution characteristics (including the position and the scale) of the karst cave, and finally obtains the specific moisture content of the karst cave in combination with a related theoretical calculation result, thereby achieving the accurate detection of the characteristics of the karst cave in a detection region. According to the method, an excitation source does not need to be additionally arranged, the detection process and conventional blasting construction can be carried out synchronously, and the method has the advantages of being few in measuring point arrangement, easy and convenient to implement, high in efficiency, accurate, small in calculation workload and the like and is suitable for karst detection and geological disaster early warning in the blasting construction period of tunnels such as water conservancy projects and traffic tunnels.

The application belongs to the technical field of energy saving and emission reduction, and aims to solve the problems of unstable energy efficiency and high cooling energy consumption of the current data center, and particularly relates to a data center cooling system using mine or cave cold air, which comprises a general control center, a cold source air supply system, a conveying system, a processing system and a system to be cooled, the cold source air supply system comprises a cold source acquisition device and a temperature detection device; the conveying system comprises a first channel, a second channel and a third channel, the second channel is used for returning the hot air of the system to be cooled to the inside of the mine / cave; when the actual temperature value obtained by the temperature detection device is not greater than the preset temperature, the cold air in the mine / cave is conveyed to the system to be cooled; otherwise, the third channel is controlled to be opened to inhale outdoor air. The application uses mine / cave air as a low-temperature heat dissipation source, fully utilizes natural conditions, realizes secondary utilization of resources, realizes energy saving and emission reduction of the data center, and guarantees the stable energy efficiency demand of the data center.

The embodiment of the invention provides a single-well water channeling shielding type remaining oil quantitative characterization method and system, and belongs to the technical field of oil reservoir simulation. The method comprises the steps that seismic attribute information of a target oil reservoir area is collected, oil and gas filling path analysis is executed based on the seismic attribute information, and whether an oil reservoir is located on an oil and gas filling path or not is judged and researched based on an analysis result; in response to a trigger signal that an oil reservoir is located on an oil and gas filling path, respectively executing karst cave three-dimensional depiction and fracture three-dimensional depiction based on the seismic attribute information to obtain fracture-cave well space structure characteristics; based on the single well exploitation data in the target oil reservoir area, oil and gas exploitation degree analysis is executed, and oil and gas exploitation degree information is obtained; and performing residual oil quantitative characterization based on the space structure characteristics of the fracture-cave well and the oil and gas exploitation degree information, and outputting the space distribution and scale of the residual oil. According to the scheme, the residual oil quantitative characterization is executed based on the fracture-cave well space structure characteristics and the oil and gas exploitation degree information, the space distribution and scale of the residual oil can be output, and important reference is provided for follow-up oil and gas resource management and development.

The present invention belongs to the technical field of karst geological bridge foundation construction and foundation treatment, and discloses a method for graded treatment and composite pile construction of bridge pile foundations in strongly developed karst geological conditions. Through advanced geological exploration and karst grade classification, construction methods are reasonably selected for different cave types to achieve on-demand treatment and graded construction, effectively avoiding material waste and excessive grouting caused by construction; conventional bored piles are directly used for areas with tiny pores to simplify the process and save costs; low-pressure grouting and synchronous grouting are designed for isolated caves and through caves respectively to reduce treatment difficulty and improve on-site resource utilization; this method has extremely strong on-site adaptability and can flexibly cope with complex and changeable karst structures. By adopting a multi-segment isolation conduit structure and combining it with an intelligent grouting-grouting synchronous control system, segmented independent grouting is effectively achieved to prevent slurry cross-flow or concrete loss between different construction depths.

The invention discloses a quick plugging method for a pile foundation karst cave, and belongs to the technical field of pile foundation construction in geotechnical engineering. The method aims at solving the technical problems that when pile foundation drilling in the karst area meets cracks or karst caves, mud leaks, and a traditional method is high in cost and low in efficiency, and a rapid and efficient leaking stoppage scheme is provided. The method is characterized in that a sulphoaluminate quick-hardening cement blanket is bonded end to end on the ground through hook-and-loop fasteners, and a sleeve structure wrapping an annular hydraulic water bag is prefabricated; the pre-assembly body is integrally put down to a leakage channel in the pile hole; the water bag is filled with water to expand in the radial direction, the hook-and-loop fasteners are opened, and the cement blanket is pressed on the side wall of the pile hole instantly to cover the leakage channel. The water bag support is maintained until the cement blanket is solidified to form a protection wall. According to the method, detection, prefabrication and overall construction are integrated, accurate in-place and rapid curing of the leaking stoppage material are achieved, the construction efficiency, the success rate and the reliability are remarkably improved, and the treatment cost is greatly reduced.

This invention discloses an underground karst cave penetration detection device, relating to the field of underground karst cave detection technology. It includes a placement plate with two F-shaped plates fixedly connected to its top. A sampling and detection mechanism is disposed on one side of each of the two F-shaped plates. A cleaning mechanism is provided on the surface of the placement plate. The cleaning mechanism includes a sweeping unit disposed on the top of the placement plate and a rinsing unit disposed on one side of the sweeping unit. The sweeping and rinsing units work together to achieve residue removal. During sampling, the sampler surface can be rinsed and cleaned in a timely manner, ensuring that sample residue on the sampler surface can fall off, preventing sample mixing after sampling, effectively ensuring the accuracy of subsequent detection and improving the detection effect.

This invention discloses a snake-like robot and a cave exploration method based on the snake-like robot. The snake-like robot includes: multiple main body devices, multiple steering devices, a power drive device, and a remote control device. The multiple main body devices and multiple steering devices are staggered, and each steering device is rotatably connected to a main body device at both ends, forming the snake-like main body of the robot. The power drive device is communicatively connected to the remote control device and is used to receive motion commands sent by the remote control device and control the movement of the snake-like main body according to the motion commands. The remote control device is communicatively connected to the snake-like main body and is used to send data acquisition commands to the snake-like main body, control the snake-like main body to perform environmental exploration, and receive environmental exploration data returned by the snake-like main body. This invention solves the technical problems in the prior art where robots have difficulty entering and locating themselves in complex cave environments and can stably and efficiently carry out surrounding environment exploration tasks.

The groundwater level regulation method of the groundwater sealed cave warehouse comprises the following steps: the water curtain system is divided into zones, a to-be-tested water curtain zone is preliminarily screened out from the water curtain system through conductivity analysis, a to-be-tested water level monitoring hole changes with the water pressure adjustment of the to-be-tested associated water curtain hole zone, a first water curtain hole zone with strong connectivity with the to-be-tested water level monitoring hole is further screened out, and finally all the underground water level monitoring holes are matched with corresponding first water curtain hole zones. When the underground water level of a certain area in the warehouse area abnormally decreases, the water pressure of the first water curtain hole zone corresponding to the abnormal water level monitoring hole is adjusted, so that the water level of the abnormal water level monitoring hole significantly rises, thereby realizing accurate regulation of the underground water level of the area. The embodiment can significantly improve the regulation accuracy and efficiency of the underground water level of the abnormal area, maintain a stable designed underground water level with the most economical means, and avoid resource waste.

The invention belongs to the technical field of hydraulic tunnel construction, and discloses a supporting structure for collapse of surrounding rock above a hydraulic tunnel face and a construction method.The supporting structure comprises a blocking structure arranged in an excavated tunnel, and the blocking structure and a collapse body in the excavated tunnel are arranged in a spaced mode; a concrete plugging body structure is filled between the plugging structure and the collapse body; a grouting pipeline is arranged in the concrete plug body structure and extends into the mountain; the concrete plug body structure comprises a backfilling concrete plug and a pumping concrete plug. The backfill concrete plug is arranged between the collapse body and the plugging structure, and the pump concrete plug is arranged between the collapse body and a karst cave cavity in a mountain. According to the method, construction is easy and convenient, the collapsed surrounding rock above the tunnel face can be rapidly reinforced, the safety risk of tunnel roof collapse caused by continuous collapse of the surrounding rock is avoided, and the purpose of safe construction of the tunnel is achieved.

This invention discloses a mixing pile machine, belonging to the field of engineering machinery technology. The mixing pile machine uses a motor to drive a spherical shaft to rotate. The motor speed can be adjusted according to different actual conditions, thereby adjusting the speed of the mixing drill rod to adapt to mixing pile operations in rock caves with different geological conditions, improving the efficiency and quality of mixing pile construction. Compared to existing technologies that use a hydraulic structure to drive the mixing drill rod, this invention allows for adjustment of the mixing drill rod speed by adjusting the motor speed, avoiding the impact on construction efficiency or quality caused by the non-adjustable mixing drill rod speed. It can adapt to different geological conditions, improving the efficiency and quality of mixing pile construction.

The application provides a karst region foundation pit gushing water treatment and reinforcement method, wherein the gushing water treatment comprises the following specific steps: determining the position of a cave cavity in the foundation pit range; analyzing and evaluating the risk level of gushing water damage when the foundation pit is excavated to a preset depth and in the use stage of the foundation pit; vertically arranging a flow guide hole, the bottom end of the flow guide hole penetrating through the cave cavity, and a flow guide pipe being sleeved in the flow guide hole, and a water permeable hole being arranged on the side wall of the flow guide pipe in the cave cavity; fixing the flow guide pipe; vertically arranging a plurality of gravel filling holes communicating with the cave cavity, and inserting a flow meter for gushing water observation into the gravel filling hole; filling gravel into the cave cavity through the gravel filling hole; foundation pit excavation support and underground gushing water monitoring. The application can overcome the potential subsequent risk caused by plugging in the traditional karst cavity treatment, and improve the uplift and compression bearing capacity of the foundation pit.