140 results about "Silt" patented technology

The present application relates to water level measurement technical field, especially a kind of for hydrological monitoring anti-silt water level measuring device, including, floating mechanism, including floating disc and the load-bearing disc of being fixed on the top surface of floating disc, the middle part of floating disc is opened with through groove along vertical direction, and through groove is provided with buoyancy measurer;Adjusting measurement mechanism, including anti-blocking component, auxiliary measurement component and first motor;And, set on the load-bearing disc above power supply control mechanism;Anti-blocking component includes first connecting ring, second connecting ring and third connecting ring from top to bottom sequentially, and first connecting ring, second connecting ring and third connecting ring are coaxially arranged from outside to inside, first connecting ring and second connecting ring are connected by first radial connecting strip along circumferential direction array arrangement, this water level measuring device can effectively avoid solid silt and affect the data of measurement, and the data accuracy of the device is good, and overall applicability is strong.

The application provides a foundation pit supporting structure of deep silt stratum and a construction method thereof. The foundation pit supporting structure comprises cast-in-situ bored piles arranged in rows and a water stop curtain. The water stop curtain comprises a plurality of rotary jet piles located in the silt layer and the upper stratum thereof and a plurality of swing jet piles located in the lower stratum of the silt layer. The cast-in-situ bored piles are constructed by using rotary drilling machines; adjacent rotary jet piles are overlapped and engaged with each other; adjacent swing jet piles are overlapped and engaged with each other; and adjacent cast-in-situ bored piles are not engaged with each other. The application combines the construction of the water stop curtain and the cast-in-situ bored piles, firstly constructs the rotary jet piles of the water stop curtain, overlaps and engages the rotary jet piles with each other, then constructs the cast-in-situ bored piles by using rotary drilling machines in the rotary jet piles, the diameter of the rotary jet piles is larger than that of the cast-in-situ bored piles, the former serves as the water stop curtain and also serves as the temporary casing during the construction of the latter, one pile has two uses, the construction process is reduced, the engineering cost is lowered, and the application has good popularization value.

The utility model belongs to the technical field of retaining wall, disclose a water conservancy building retaining wall, including retaining wall, backfill and concrete bottom plate, the retaining wall inside is equipped with the water outlet pipe, backfill inside is equipped with the drainage blind ditch, drainage blind ditch inside is equipped with the filter structure, drainage blind ditch is connected with the water outlet pipe through the connecting structure, set up drainage blind ditch and water permeable geotextile when backfilling backfill, reduce the water level of backfill layer upper end to drainage blind ditch lower end, the water of upper end is through drainage blind ditch and flows to water permeable net pipe, the silt that enters water permeable net pipe is reduced through the filtration of blind ditch gravel and geotextile, again due to the water of inside flow of water permeable net pipe can take away trace silt, thereby avoid the deposition of silt and cause the blockage, the water in water permeable net pipe is taken away through the water outlet pipe that is preburied in retaining wall, thereby reduce the hydrostatic pressure of backfill to retaining wall.

The application belongs to the technical field of shield construction, and discloses a method and system for early warning of settlement trend of shield construction crossing a dam; the method comprises the following steps: collecting silt layer geological data before the shield crosses the dam, and analyzing to obtain the distribution range and sensitivity level of the silt layer; collecting the tunneling parameters in real time in units of each ring when the shield machine crosses the silt layer section, and analyzing to obtain the disturbance index; collecting the real-time tunneling speed and the cutter head rotating speed, and recording the shutdown parameters when the complete shutdown condition is met; collecting the slurry tank pressure and the shutdown duration during shutdown, and calculating the pressure data; for the current sensitivity level, the preset hierarchical early warning rule is adopted, the current disturbance index basic threshold is corrected to obtain the corresponding dynamic threshold, the pressure data is compared with the dynamic threshold, and the early warning is issued according to the preset trigger logic classification; and the application improves the safety of shield construction crossing the dam.

The application discloses a kind of arid region reservoir water and sand prediction and coordinated regulation potential evaluation method and system, belong to water resources, silt treatment and reservoir optimization scheduling technical field.The technical problems of traditional model prediction accuracy insufficient caused by arid region hydrology data scarcity, water and sand prediction process is fragmented and reservoir desilting and silt reduction and water storage benefit difficult to be synergistically optimized, its gist is that: long short-term memory network is used to predict future runoff sequence by fusing attention mechanism, and the sediment concentration is calculated by combining the water and sand relationship formula;By setting the critical sediment concentration threshold, the high sediment concentration period is identified and the available water for dredging is calculated;At the same time, the flood resource potential is evaluated by combining reservoir capacity and water demand constraints;Finally, the coordinated scheduling scheme is generated by comparing the two potentials.The application realizes the integrated accurate prediction of water and sand process in arid region and the simultaneous quantitative evaluation of regulation potential, and provides intelligent decision support for multi-objective optimization scheduling of reservoir.

The application discloses a multi-stage gradient anti-silt underwater equipment, which comprises a static part and a rotating part rotating relative to each other. Outside the core support gap, a flow guiding and sand throwing part and an expansion and sedimentation part are arranged in sequence from upstream to downstream along the water flow direction. The flow guiding and sand throwing part is an annular step arranged on the static part, which utilizes water flow inertia separation to throw large particle silt out of the side; the expansion and sedimentation part is an annular groove arranged on the inner hole wall of the static part, which utilizes the low-speed vortex area formed by the sudden change of the flow passage section to make fine sand particles settle and be intercepted in the groove; the two parts are cooperated with each other, and the different particle size silt is classified and intercepted through inertia separation and vortex settlement respectively. An end face flow guiding part can also be arranged, which generates centrifugal force relying on the mechanical movement of the rotating part to dredge fine particles. The application has simple structure, no vulnerable parts, and is suitable for silt-containing underwater working conditions, and can prolong the service life of the equipment.

This invention discloses a method for handling subsea pipelines during uplift, comprising: Step S1, pipeline gas discharge and repositioning: When an abnormal uplift occurs in a laid subsea pipeline, the pipeline is pressurized to allow the gas inside to flow back to the onshore section and be discharged through the onshore section's exhaust valve, causing the pipeline to fall back to its initial installation elevation; Step S2, trench dredging and pipeline leveling: An underwater excavator is used to excavate along both sides of the pipeline to below the design elevation of the pipeline bottom, and simultaneously, a mud pump is used to pump the silt to a mud transport vessel, transport it to a designated anti-seepage treatment site, and check the dredging quality. If the pipeline is suspended, graded sand and gravel are used for leveling; Step S3, precast concrete cover plate fabrication; Step S4, underwater positioning and cover plate installation preparation; Step S5, precast concrete cover plate installation; Step S6, end sealing. When an abnormal uplift occurs in a laid subsea pipeline, this invention can suppress pipeline uplift and increase the pipeline's stability on the seabed.

This application discloses a density-based mix design method for fluidized solidified soil, comprising: determining the design density of the fluidized solidified soil; determining the water-to-solid ratio of the fluidized solidified soil based on fluidity requirements; determining the cement admixture ratio and curing agent admixture ratio of the fluidized solidified soil based on strength requirements; and obtaining the corresponding dosages of water, cement, curing agent, and wet soil. This application innovatively designs the mix proportion of fluidized solidified soil from a density perspective, effectively ensuring the rationality and accuracy of the density of the prepared fluidized solidified soil. This results in a density lower than that of the silt on the seabed in marine reclamation projects, thereby guaranteeing the construction quality of fluidized solidified soil reclamation projects.

This utility model discloses a dredging and filtration device for river water conservancy construction, relating to the field of river dredging technology. It includes a mixing component, a feeding rack on one side of the mixing component, and a screening component inside the feeding rack to block stones stirred up by the mixing component. The screening component is drivenly connected to the mixing component. A sweeping component for cleaning the screening component is installed on the screening component, and the sweeping component is drivenly connected to the mixing component. The feeding rack is connected to a suction pipe, and a suction pump is installed above the suction pipe. This utility model is mainly used for river dredging operations. The mixing component agitates the silt at the bottom of the river, mixing the silt with water to form a mud-water mixture, facilitating subsequent suction operations. Simultaneously, the screening component intercepts larger particles such as stones stirred up during the mixing process, preventing them from entering the suction system and causing blockages.

The application discloses a robot for automatically cleaning the inner wall of a pressure pipe of a river with much sediment, and relates to the technical field of robots, which comprises a vehicle-mounted mechanical arm, a supporting structure is fixedly installed at the bottom end of the vehicle-mounted mechanical arm, a cleaning execution structure is fixedly installed at the bottom end of the supporting structure, the cleaning execution structure comprises an L-shaped shell, an intermediate connecting seat, a mounting seat two and a rotating shunt frame, an extension shield is fixedly installed outside the intermediate connecting seat, a position control assembly is arranged between the L-shaped shell and the intermediate connecting seat, the sediment inside the pressure pipe is washed out of the pressure pipe by water flow, the rotating shunt frame is rotated to rotate a plurality of axial flushing holes arranged in a staggered mode, the vehicle-mounted mechanical arm is operated to move the cleaning execution structure up and down and left and right within a range, and the inside of the pressure pipe is cleaned comprehensively, the pressure measuring equipment inside the pressure pipe is washed by water flow impact, and the damage of the pressure measuring equipment inside the pressure pipe is reduced while ensuring that the pressure measuring equipment inside the pressure pipe is cleaned completely.

The utility model relates to a kind of water pump with machine seal sand blocking structure, to solve the problem that machine seal is easy to fail in prior art, the technical scheme used includes motor, pump body, motor base connected motor and pump body, the rotation axis on motor passes through motor base and forms connection with the impeller in pump body, machine seal is set between rotation axis and motor base, the inner cavity of machine seal and motor base cooperation, it is characterized in that the outside cover of machine seal is equipped with machine seal sand blocking structure, and machine seal sand blocking structure has deposition channel.Effect: the outside cover of machine seal is equipped with machine seal sand blocking structure, and machine seal sand blocking structure has deposition channel, machine seal sand blocking structure is used to prevent external silt from entering the gap between machine seal and rotation axis, deposition channel is used to deposit silt entering machine seal sand blocking structure and discharge, it is beneficial to keep the liquid environment of machine seal working operation relatively clean and stable, it is beneficial to ensure that water pump is normally operated, and it is beneficial to reduce the probability of repair and replacement, it is beneficial to reduce water pump operating cost.

The embodiment of the present application discloses a shale-rich contourite deposit identification and sequence establishment method, device, equipment, medium and program product, the method comprises: identifying the lamina group of shale sample and the lamina of the lamina group; determining the lamina type of the lamina, the lamina type is mud lamina or silt lamina; and based on the grain size variation characteristics corresponding to the lamina group, the characteristics of the lamina type, and the lamina interface form, determining whether the lamina group is a typical lamina group of shale-rich contourite deposit, and identifying the shale sample as shale-rich contourite deposit when the lamina group is a typical lamina group; wherein the texture characteristics of the typical lamina group are the layer lamina type positive texture of carrying erosion surface and small-scale cross-bedding or the interactive horizontal texture of carrying small-scale silt lens. The embodiment of the present application can accurately and quickly identify the shale-rich contourite in the shale without biological disturbance characteristics, and accurately and quickly establish the corresponding shale-rich contourite deposit sequence.

The present application belongs to the technical field of foundation treatment, and discloses a kind of silt foundation grouting lifting construction method of combined drainage consolidation.Solve the problem of secondary settlement caused by excess pore water pressure dissipation after silt foundation grouting lifting in the prior art.The present application comprises: construction preparation and site investigation;Lay vertical drainage channel, vertical drainage body penetrates silt layer or enters the relatively permeable soil layer below silt layer, and the top end is exposed to the ground;Sand cushion layer is laid on the top end of vertical drainage body or horizontal drainage pipe network is laid;Lay grouting hole, in the area to be lifted, several grouting holes are laid at a predetermined interval, vertical drainage body is located at the center position of grouting hole grid, the depth of grouting hole reaches the design lifting horizon, and grouting pipe is lowered into grouting hole;Pressure grouting lifting and synchronous drainage;Pressure stabilization and maintenance.The present application realizes synchronous and collaborative operation of grouting lifting and drainage consolidation, improves the stability and controllability of lifting effect.

The utility model relates to a kind of deep foundation pit dewatering recovery processing device, including pumping pipe, supernatant chamber, sand setting chamber and lower clear chamber;Supernatant chamber is provided with first filter plate, supernatant chamber is connected with supernatant input pipe and supernatant output pipe, the pipe orifice of supernatant input pipe enters from the top of supernatant chamber, is communicated to the area of supernatant chamber below first filter plate by first filter plate;The pipe orifice of supernatant output pipe is above first filter plate;The bottom of supernatant chamber is provided with sand discharge port connected to sand setting chamber;Sand setting chamber is set below supernatant chamber, sand setting chamber is provided with sand input pipe and sand output pipe, supernatant input pipe and sand input pipe are communicated with pumping pipe by electric control tee valve;The bottom of sand setting chamber is provided with second filter screen connected to lower clear chamber.The utility model can effectively carry out solid-liquid separation to dewatering water body, reduce silt pollution risk in the process of reuse, improve the safety and reliability of construction water.

The present application relates to geotechnical engineering and underground drainage technical field, disclose a kind of high fill deep anti silt self-cleaning drainage system and method based on pneumatic breathing effect.The system includes drainage pipeline, elastic breathing cover, water-permeable geotextile, gas supply unit, monitoring unit and control unit.Drainage pipeline wall is provided with micropore, elastic breathing cover is sleeved in the outer periphery of pipeline and forms gas passage, and water-permeable geotextile is wrapped in the outermost layer.Monitoring unit real-time monitoring in-pipe flow and / or pipe outside pore water pressure, when monitoring parameter exceeds threshold value, control unit starts gas supply unit and intermittently injects high-pressure gas into gas passage, so that elastic breathing cover generates periodic radial expansion and contraction, and destroys the mud cake structure attached to the surface of geotextile;While high-pressure gas enters the inside of pipeline through pipe wall micropore, and mixed with water to produce gas lift effect, carry out and discharge the deposited sludge in pipe.The present application realizes synchronous cleaning of pipe outside mud cake and pipe inside sludge, without excavation maintenance, intelligent and efficient.

This utility model relates to the field of lake dredging technology, and more particularly to a system for collecting and removing polluted bottom sediment based on terrain modification. The system includes a sediment collection trough constructed on the lakebed; a sediment well located in a low-lying area of ​​the sediment collection trough; a sludge scraper for collecting surrounding sediment into the low-lying area of ​​the sediment collection trough and the sediment well; a liftable outer sleeve that, when lowered vertically, completely covers the sediment well, with its lower end submerged in the sediment in the low-lying area and its upper end protruding above the water surface; a water pump for removing water from inside the outer sleeve; and a sediment removal device for removing the sediment collected in the outer sleeve and the sediment well. This solution has the advantages of improving sediment collection efficiency, reducing water content, and minimizing water disturbance.

This utility model relates to the field of slope reinforcement technology and discloses a slope reinforcement structure, including a slope. A reinforcement mechanism is provided on the front side of the slope, and a top plate is provided on the rear side of the reinforcement mechanism. A partition mechanism is provided on the top of the top plate. The reinforcement mechanism includes boulders, the rear side of which is fixedly connected to the bottom of the front side of the slope. Sand backfill is fixedly connected to the rear side of the top of the boulders, and a concrete foot groove is fixedly connected to the top of the boulders. A rotating shaft is rotatably connected inside the concrete foot groove, and a frame is fixedly connected to the outer wall of the rotating shaft. In this utility model, the silt at the base is treated by boulders, followed by sand backfilling and pouring of the concrete foot groove. The rotating shaft is used to rotate the frame, and the angle is precisely locked by a limiting component. A multi-layer permeable structure protects the slope, while a fixing component anchors the reinforcement mechanism to the foundation, effectively enhancing slope stability and reducing soil erosion and water flow damage.

The application relates to the technical field of tunnel construction, and discloses a tunnel construction drainage device, which solves the problem that the cleaning mechanism of the existing drainage device has a complex structure, the complex matching structure is prone to faults in operation, and the cleaning of the silt is ineffective; the water flow drives the rotary drum to rotate, thereby providing power for the rotation of the filter cover; the driving mode has a circulating operation path, has no redundant components or complex interaction, has a low failure rate, is convenient for long-term stable operation in a complex underwater environment, the rotating filter cover and the non-porous part of the surface cooperate with the inclined shelf to work, the silt adsorbed on the surface of the filter cover is continuously cleaned, the filter cover keeps the water filtering efficiency, the suction assembly enables the suction cover to generate suction force to suck the cleaned silt, the silt is prevented from being active near the filter cover, and the workload of the inclined shelf for cleaning the silt is increased; the movement path of the above structure is circular, the operation process is orderly, the regularity is high, and the drainage operation is suitable for stable operation in a complex underwater environment.

This invention discloses a fixed device and a flow velocity monitoring device, relating to the technical field of water flow velocity monitoring devices. It includes a measuring component, a fixing component, a rod, and a control system. One end of the rod near the silt is fixedly connected to the fixing component, which is used to fix the rod in the silt. A measuring component is mounted on the fixing component, and a mounting component is slidably mounted on the rod. The mounting component is used to mount a flow velocity meter. The measuring component measures the depth of the silt surface from the water surface and transmits a position signal to the mounting component through the control system, causing the mounting component to move the flow velocity meter according to the depth of the silt surface from the water surface. This allows several flow velocity meters to be uniformly positioned in the water vertically to detect water at various depths. The flow velocity monitoring device includes a flow velocity meter and the aforementioned fixed device. This invention adaptively adjusts the position of the flow velocity meter according to the water depth, adapting to the dynamic changes in lake topography and water level, thus improving monitoring efficiency.

The application discloses a pipeline static extrusion pipe jacking construction method, which comprises the following steps: well drilling, equipment installation, pipeline static extrusion device jacking, buried pipeline jacking, direction adjustment of a machine head pipeline and machine head pipeline taking out. The application can safely conduct pipeline construction in loose sand or silt geology, and can extrude the sand or silt into the machine head through a static extrusion cylinder. Construction personnel can clean and transport the extruded sand or silt out of the machine head, without needing to explore outside the machine head pipeline for construction, thereby greatly protecting the personal safety of the construction personnel. Compared with a slurry balance pipe jacking construction method, the application can not cause damage to underground pipelines in an old city area and can not cause problems such as road surface bulging. Multiple direction adjustment assemblies are arranged behind the machine head pipeline, so that the subsequent advancing route can be corrected when the pipeline is displaced or deviated, thereby meeting the construction requirements of construction projects with strict requirements on elevation.

This invention discloses a method for controlling and monitoring the concentration of overflow in mud silt, relating to the field of waterway dredging technology. The apparatus includes a concentration monitoring system, an overflow control system, and control devices. The method collects vertical detection data to construct a continuous vertical concentration-gradation profile model characterizing the sediment content and particle size distribution inside the mud silt. Based on this, a one-dimensional transport-diffusion-settlement evolution equation is introduced to establish a dynamic prediction model, predicting the evolution trend of sediment morphology over time. A discrete layer optimization decision-making strategy is adopted to construct a multi-objective evaluation function including concentration deviation, gradation deviation, and fine particle loss. The optimal overflow port height and opening sequence are solved through a layer mass balance mechanism. This invention integrates a risk-constrained stopping strategy and a phased adaptive control law, solving problems such as large monitoring blind spots, control lag, and severe fine particle loss in traditional overflow control, thereby improving mud silt loading efficiency and automation levels.

This invention discloses a method for constructing a cofferdam bottom sealing system in deep silt geological conditions. The successful application of this method solves the problem of insufficient bearing capacity in deep silt layers. Previous methods used the original foundation surface as the reference elevation for the bottom concrete, increasing the bond strength between the concrete and the sheet pile cofferdam / steel casing to meet the concrete's anti-buoyancy and anti-sinking requirements. However, large-scale application of this method leads to increased concrete usage and lower safety performance in subsequent construction. This invention further removes silt from the original foundation to ensure no silt deposition on the bottom sealing base surface, preventing the bottom sealing concrete from mixing with deposited silt and reducing its strength. Furthermore, it uses replacement filling to form a new base structure, increasing the bearing capacity of the bottom sealing base surface and enhancing the safety of subsequent pile cap construction. Overall, it reduces material waste and significantly saves economic costs.

This invention relates to a method for identifying weathered rock strata interfaces and adaptively controlling excavation parameters based on vibration spectrum analysis, belonging to the field of intelligent excavator construction technology. It addresses the problems of relying on manual experience for soil-rock interface identification during weathered rock strata trench excavation, low efficiency of mechanical switching, and slope vibration risks. The method collects vibration acceleration signals using a triaxial accelerometer, extracts frequency domain feature vectors including the dominant frequency amplitude, high-frequency band energy proportion, spectral centroid, and kurtosis value, and inputs these vectors into a multi-class support vector machine model to output category labels. When the category label changes from "cohesive silt" to "strongly weathered gneiss," the input current to the proportional solenoid valve of the excavator's hydraulic main pump is reduced, and a breaker hammer warning signal is activated. When the category label is "moderately weathered gneiss with interbedded boulders" and the high-frequency band energy proportion and kurtosis value exceed the safe range, the pilot oil pressure of the breaker hammer is limited. This method enables real-time identification of the soil-rock interface and adaptive control of excavation parameters.