20 results about "Red sandstone" patented technology

The invention discloses a method for constructing a rock dynamic damage constitutive relation under the freeze-thaw-load effect, and belongs to the technical field of rock damage, and the method comprises the following steps: determining a dynamic damage evolution equation based on evolution characteristics of a rock dynamic damage rate under the freeze-thaw-load effect and a macromechanical parameter change rule; the method comprises the following steps: abstracting a rock under the action of freeze-thaw-load into four parts, namely freeze-thaw damage, load-bearing damage, coupling damage and non-damage, bearing effective stress by the non-damage part, bearing residual stress by the damage part, and establishing a rock constitutive model based on a dynamic damage rate; freeze-thaw cycle and conventional triaxial compression tests of the red sandstone are carried out, and the rationality of the model is verified through test results. According to the method, the model is established in a mode of combining theoretical derivation and test verification, the goodness of fit between the obtained theoretical curve and the test curve is high, the mechanical behavior of rock freeze-thaw load damage can be well reflected, and theoretical guidance can be provided for design and construction of cold region engineering.

The invention relates to the technical field of civil engineering, in particular to a red sandstone multi-bench combined mechanical cold excavation construction method which comprises the following steps: S1, generating a rock mass model by adopting three-dimensional laser scanning and AI geological analysis, and dynamically optimizing mechanical configuration and excavation parameters by combining a BIM numerical simulation rehearsal bench scheme; accurate rehearsal and parameter optimization of a stair flight scheme are achieved through three-dimensional laser scanning, AI geological analysis and BIM numerical simulation, a scientific basis is provided for construction, dynamic adaptation and process correction of excavation operation are achieved with the help of rock mass hardness sensing, intelligent parameter matching and particle size recognition technologies, the construction efficiency and the crushing quality are improved, and the construction cost is reduced. Real-time monitoring, trend prediction and grading response of slope stability are achieved through a multi-source sensing network, a digital twin model and edge calculation, construction safety is guaranteed, and the intelligent level, operation efficiency and safety controllability of red sandstone multi-bench mechanical cold excavation are remarkably improved.

The invention discloses an indoor red sandstone intelligent disintegration tester device which comprises a test box and a red sandstone sample, a grid plate is fixedly installed in the test box, a central control panel is fixedly installed at the top of the test box, a bearing device is arranged in the test box, a liquid level control device is arranged at the bottom in the test box, and heating devices are arranged on the two sides in the test box. An aerodynamic circulation device is arranged at the top of the test box, a weathering corrosion device is arranged on one side of the test box, and a box door is hinged to one side of the test box; the bottom plate is jointly formed by the insertion strips and the base plate, a red sandstone sample is placed on the base plate, the periphery of the soil sample is suspended, and when the soil sample is disintegrated, chippings and blocky disintegration substances can directly fall off, so that the reading of the tension meter is not influenced, and the test data is more accurate; through the first liquid level sensor and the third liquid level sensor, the height of the water level in the test box can be detected by utilizing the central control panel, and water feeding and water discharging are controlled by utilizing the first electromagnetic valve and the second electromagnetic valve, so that an automatic cycle test is realized.

The invention provides red sandstone fully-weathered substance-based high-compactness filler equipment and a use method, and belongs to the technical field of constructional engineering. Comprising a vibration type road roller body and a leveling module, and the leveling module is arranged on the side face of the vibration type road roller body. By arranging the leveling module and the filling-in module, when the device works, excessive materials on a roadbed can be leveled out through the leveling module, and the excessive materials are recycled in the later period to be used for filling up sunken parts of the roadbed, so that the device can reduce the number of workers after the device works to a certain extent, and the device is convenient to use. Due to the fact that excessive red sandstone fully-weathered materials cannot be treated, the possibility that the flatness of the materials cannot meet the requirement after the materials are compacted by the device is avoided, and meanwhile the filling-in module can fill up the sunken portions on the roadbed in the working process. In this way, the possibility that the aesthetics cannot meet the requirement due to the fact that the sunken part of the roadbed cannot be filled up in time is reduced to a certain degree, and the probability of project acceptance is increased to a certain degree.

This invention relates to the field of pile foundation construction equipment technology, and discloses an adaptive borehole wall drilling tool for fractured red sandstone strata. The main body of the drilling tool has a central pilot drill bit and peripheral reaming drill bits fixed at its bottom. An arc-shaped extrusion plate driven by a hydraulic telescopic arm is installed on the outside, and a surface control cabinet is provided. The control system integrates multiple collaborative modules: a sensing and positioning module determines the three-dimensional coordinates of leakage fractures based on lateral mud pressure drop; a grouting and pausing module drives the drilling tool to align and perform localized sealing grouting; a micro-rotation self-cleaning module removes external deposits and replaces residual fluid in the pipeline through alternating rotation and hydraulic jetting; and an extrusion wall protection module controls the telescopic arm to compact the borehole wall based on contact stress feedback. This invention integrates fracture sensing, targeted grouting, and mechanical wall protection, enabling borehole leakage repair and compaction operations to be completed without lifting the drill.

The utility model discloses a device of on -the -spot red sandstone quick determination disintegration coefficient, including test device main part, be equipped with the base on test device main part, install the soaking cylinder and drying cylinder on the base, the utility model through setting up soaking area and drying area, respectively to red sandstone sample carries out soaking and drying treatment, through the lifting rod and the rotating motor drive sample moves between drying cylinder and soaking cylinder, spares the manual operation of operator, through setting up multiple test area, simultaneously, the same condition carries out multiple group disintegration test, and tries to exclude accidental error, in the soaking process, through the magnetic capsule rotation, drive the clear water in the soaking area rotation, utilize the flow to accelerate the disintegration of red sandstone, and the flow speed is limited, not to produce bigger external force, seriously influence red sandstone disintegration rate, in the drying process, through the fan acceleration drying, and remove the loose particle on the sample surface when drying, after drying, through the fan acceleration sample cooling.

This invention belongs to the field of testing technology and relates to a method for detecting the degree of weathering of red sandstone used in construction under wet-dry cycles. The method includes: taking freshly prepared thin red sandstone sheets and blocks as specific reference samples 1 and 2, recording the thickness, and measuring the initial ultrasonic velocity; subjecting the freshly prepared thin red sandstone sheets and blocks to unidirectional wet-dry cycle erosion under a simulated wet-dry cycle environment, repeating this process multiple times until the thin red sandstone sheets are completely weathered, and measuring the ultrasonic velocity value each time; constructing a relationship equation between the weathering depth and the thickness of the freshly prepared thin red sandstone sheets and blocks, the initial ultrasonic velocity, and the ultrasonic velocity during the cycle; and performing data fitting to obtain the relationship between ultrasonic velocity and weathering depth, as well as the relationship between ultrasonic velocity and the propagation time of ultrasonic waves in the red sandstone. This method can intuitively obtain the relationship between the degree of weathering of the tested red sandstone from the surface and its depth, and can achieve non-destructive testing.

The invention discloses a test device for accelerating and inhibiting red sandstone disintegration and a test method thereof, and relates to the field of red sandstone disintegration, the test device comprises a bottom plate, a rotating box is fixedly mounted on the bottom plate, a control panel is fixedly mounted on the side surface of the rotating box, an infiltration box is fixedly mounted on the bottom plate, and a placement seat is fixedly mounted at the top end of the infiltration box; a disintegration cylinder is arranged on the placement seat, a driving rod is movably mounted on the side surface of the disintegration cylinder, and a driving sleeve is fixedly mounted on the driving rod. According to the device, the infiltration box is used for containing a solution, a red sandstone sample is contained in the disintegration cylinder for rapid disintegration, the disintegration cylinder can be transported into the drying box for drying through the carrying structure, the mass change of the red sandstone sample is recorded through the mass sensor, and the solution is supplemented into the infiltration box in time through the solution box; therefore, the device enables a time-consuming and labor-consuming disintegration experiment process to be automatic, and the burden of experimenters is reduced.

The invention discloses a red sandstone hard slope ecological greening system and a construction method thereof, and relates to the technical field of ecological greening, the red sandstone hard slope ecological greening system comprises a bottom net mechanism, a fixing mechanism is arranged at the top end of the bottom net mechanism, a frame mechanism is arranged at the top end of the fixing mechanism, and a spraying mechanism is arranged at the top end of the frame mechanism; the bottom net mechanism comprises a frame and a bottom net body, the bottom end of the frame is fixedly provided with a connecting belt and a fixing block, the fixing mechanism comprises a bottom plate, the bottom end of the bottom plate is fixedly provided with a ground needle, the comprehensive performance of ecological greening of the red sandstone hard side slope is improved, and the fixing mechanism adopts a ground needle anchoring and adjustable threaded rod linkage mechanism; the adhesive force of the system and the rock mass is enhanced, rapid assembly and flexible expansion are achieved through the modular splicing design of the frame mechanism, the system adapts to the complex slope form, the structure stability, the environment adaptability and the maintenance convenience are achieved, and a durable and reliable carrier is provided for vegetation growth.

The utility model discloses a foundation pit water level monitoring device suitable for a water-rich red sandstone stratum, which comprises a host machine, a connecting pipeline arranged on the host machine and a monitoring probe arranged at one end, far away from the host machine, of the connecting pipeline, a mounting mechanism is arranged on the inner side of the protective shell, a cover plate is arranged at an opening in the top end of the protective shell, and a limiting mechanism matched with the mounting mechanism is arranged on the inner wall of the protective shell; when the protective shell is installed, the rotating ring is rotated, the connecting rod slides in the arc-shaped groove and the adjusting plate extends out, so that the clamping plate can abut against the inner wall of the host installation hole, the protective shell is limited and fixed, the installation mode is stable and reliable, the protective shell can be effectively prevented from inclining or loosening in the using process, and the safety of the host is improved. And the stability and the accuracy of the monitoring equipment are ensured.

The invention discloses a red sandstone grade classification device combined with excavation parameter deduction and a use method, and relates to the technical field of red sandstone grading, the red sandstone grade classification device comprises a workbench and a simulation test box mounted on the top of the workbench; the partition plate is mounted in the simulation test box; the placing seat is arranged at the top of the workbench and is positioned in the simulation test box; the water tank is arranged at the top of the workbench and located in the simulation test box; the pressing mechanism is arranged in the simulation test box and is used for pressing the red sandstone; the drilling detection mechanism is arranged in the pressing mechanism and is used for detecting red sandstone data; according to the device, the drilling detection mechanism is arranged, excavation parameters are combined, excavation drilling work of the red sandstone is simulated, so that rough information of a red sandstone sample is obtained, data comparison is facilitated, and the grades of the red sandstone are quickly classified.

The invention relates to a groove backfilling method for a municipal drainage pipeline in a red sandstone stratum. The method comprises the following steps that (1) the construction process of groove backfilling is set according to the characteristics of a groove to be constructed; the characteristics of the groove comprise the dry density, the permeability coefficient and the natural uniaxial compressive strength of the red sandstone stratum where the groove is located, the size of the groove and the pipe diameter of a pipeline in the groove; the construction process comprises the step that a groove is divided into N backfilling areas, and the backfilling areas comprise the area A, the area B, the area C, the area D, the area E and the area F; (2) different types of backfill materials are obtained by controlling a backfill device to accurately prepare materials; and the backfill material is stricken and tamped layer by layer through the rotary strickling mechanism, the inclined hammering device and the rammer in sequence to complete groove backfill. According to the method, the backfilling process of the groove can be mechanized, manual operation is greatly reduced, the working efficiency is improved, and the backfilling quality and the long-term stability of the pipeline are ensured.

The invention relates to the field of uranium mining, in particular to a method for confirming the uranium dissolving capacity of organic fluid. The method comprises the following steps: collecting red sandstone, gray sandstone and green ore-containing sandstone, and pretreating the three samples; the invention relates to an organic fluid-containing uranium dissolution experiment under different temperature conditions. The experiment specifically comprises the following steps: respectively preparing reaction media; the pretreated red sandstone, gray sandstone and green ore-containing sandstone are taken to react with seven reaction media respectively, the reaction temperature is set to be the six temperature conditions of normal temperature, 50 DEG C, 80 DEG C, 110 DEG C, 130 DEG C and 150 DEG C, and the reaction time is 2 days; after the reaction is finished, a reaction product is centrifuged, supernate is taken, and uranium concentration analysis is carried out; analyzing and sorting the uranium concentration analysis data, discussing the uranium dissolving and migrating capability of the organic fluid in combination with the experimental temperature, and determining the influence of the temperature on the uranium dissolution of the organic fluid. The method is high in operability, and provides a first-hand experimental data support for uranium penetration mineralization.

The application provides a rough processing pebble modified red sandstone roadbed filler, which is formed by mixing 40%-80% rough processing pebble with red sandstone fine material, the red sandstone is pre-disintegrated and dried, and the bearing ratio of the modified red sandstone roadbed filler is quickly predicted by the following formula: CBR = A*S^B, wherein CBR is the bearing ratio of the rough processing pebble modified red sandstone roadbed filler; S is the area of the region surrounded by the transverse coordinate axis in the range of d (particle size) = 0.075 mm to the maximum particle size of the rough processing pebble modified red sandstone roadbed filler, which is simply referred to as the grading curve area; and A and B are model parameters. The application also provides a bearing ratio prediction method of the rough processing pebble modified red sandstone roadbed filler. The rough processing pebble is broken as a modified material to physically modify the red sandstone, the rough processing pebble-red sandstone multi-level particle system is optimized, a synergistic effect is formed, and the overall bearing performance of the red sandstone filler is significantly improved.

The invention discloses a toning repair material for red sandstone stone cultural relics and application of the toning repair material, and relates to the technical field of red sandstone stone repair. Aiming at the property and color change of the red sandstone, the cultural relic color-mixing repairing material obtained by blending the sintered material ginger nut, quartz sand, calcined kaolin, purple clay, medium tile ash and black gold sand as natural colored raw materials is natural in material and stable in color, and is not easy to discolor after being repaired in an outdoor environment for a long time; and the natural colored raw material and the repairing and shaping material or the natural raw stone have good binding force, so that the cultural relic toning and repairing material is relatively good in connection stability and not easy to fall off, and the risk of damage to the cultural relics due to repeated repairing of the cultural relics is reduced. Besides, by controlling the proportion of all the raw materials, multiple colors similar to the color of the red sandstone can be obtained through rapid modulation, the difficulty of toning and repairing of the red sandstone is reduced, a rapid compounding basis is provided for toning of the red sandstone, and the color of a repaired area is harmonious and unified with the color of surrounding raw stone.

The invention discloses a device for preventing and treating mud cake on a cutter disc in a strongly weathered red sandstone stratum. A soil bin is arranged at the rear of the cutter disc. One to three circles of reserved ball valves are installed on the partition of the soil bin. Two to six reserved ball valves can be installed in each circle. The center of each circle of reserved ball valves is located in the same circumferential surface, and the circumferential surface is coaxial with the center of rotation. The reserved ball valve is connected to an outlet of a drainage and pressure relief pipeline. The inlet of the drainage and pressure relief pipeline is connected to an ultra-high pressure cleaning machine, and the other outlet is connected to a collection system. The device is used to perform high-pressure flushing on the center of the cutter disc where mud cake is formed, and the flushed water and slag are discharged to the collection system through a third steel pipe, so as to ensure that there is no mud cake in the center of the cutter disc and the shield machine is in a normal excavation state. The device can be widely applied to the technical field of equipment or devices for preventing and treating mud cake on the cutter disc.

The invention relates to the technical field of rock blasting, in particular to a method and a system for analyzing mechanical properties and energy evolution of red sandstone under impact load. The analysis method provided by the invention comprises the following steps: acquiring test data and a morphological image of jointed red sandstone; utilizing the test data to obtain a mechanical curve and an energy curve of the jointed red sandstone; analyzing the mechanical properties of the jointed red sandstone under the impact load according to the mechanical curve and the morphological image; and analyzing the energy evolution of the jointed red sandstone under the impact load through the energy curve. The dynamic uniaxial compression test is carried out on the jointed red sandstone through the Hopkinson pressure bar test device, the dynamic mechanical properties and energy dissipation characteristics of the cement jointed red sandstone with different joint inclination angles are explored, and guidance and reference are provided for blasting construction of jointed rock mass.

The utility model discloses a red sandstone stratum foundation pit dewatering construction structure, which belongs to the technical field of foundation pit dewatering and comprises a mounting ring, a drill rod sleeve, a water pumping pipe and a driving mechanism, the top of the drill rod sleeve is rotatably connected with the mounting ring, the drill rod sleeve is of a hollow structure, a water collecting area is formed in the drill rod sleeve, and the water pumping pipe is arranged in the water collecting area. The water pumping pipe is rotationally arranged in the drill rod sleeve, the diameter of the water pumping pipe is smaller than the inner diameter of the drill rod sleeve, the water pumping pipe extends to the bottom of the drill rod sleeve, a plurality of water seepage holes are formed in the side wall of the drill rod sleeve, and foundation pit underground water enters the water collecting area through the water seepage holes and is discharged through the water pumping pipe; and the driving mechanism is used for driving the drill rod sleeve to rotate. According to the red sandstone stratum foundation pit dewatering construction structure, along with the increase of the excavation depth of the foundation pit, the driving mechanism drives the drill rod sleeve and the water pumping pipe to continuously drill downwards, the drainage process does not need to be interrupted or the water pumping pipe does not need to be pulled out of the water collecting well, the operation process is simplified, and the working efficiency is improved.

The utility model relates to the related technical field of building construction, in particular to a construction device capable of dewatering in a red sandstone stratum foundation pit. An output port is formed in one side of the vacuum pump, and a water outlet pipe is arranged on the side, away from the vacuum pump, of the output port. Under the matching action of the vacuum pump, the output port, the water outlet pipe, the water collecting tank, the input port, the main pipeline, the well point pipe, the water suction pipe and the butt joint mechanism, a user can conduct rapid butt joint on the pipeline and the pump body, the working process of butt joint of the pump body and the pipeline is simplified, and the working efficiency is improved; the end opening can be automatically controlled to be closed when the pipeline and the pump body are separated, the water leakage phenomenon is avoided, the practicability is improved, an existing construction device capable of dewatering of the red sandstone stratum foundation pit is generally used for connecting the pipeline and the pump body through a flange plate, a bolt needs to be screwed through a wrench during connection, and the construction efficiency is greatly improved. The butt joint process is relatively complex, and the working efficiency is relatively low.

The invention belongs to the technical field of road construction, and particularly relates to an unsaturated red sandstone weathered soil roadbed slope stability analysis method which comprises the following steps: step 1, US-PB model development and calibration including test data acquisition, initial model construction, fracture index and relation establishment and model optimization and calibration; according to the unsaturated red sandstone weathered soil roadbed slope stability analysis method, by arranging the US-PB model, particle crushing and matrix suction coupling are incorporated into strength description, and the effect of more truly reflecting the mechanical behavior of red sandstone weathered soil is achieved; the problems of strength overestimation and inaccurate deformation prediction caused by neglect of an unsaturated state and particle breakage in a traditional method are solved.