100 results about "Hydraulic fill" patented technology

Hydraulic fill and drain of a clutch chamber is controlled with a blocking valve and a trim valve. The blocking valve selectively provides pressurized fluid to the trim valve which in turn selectively provides the pressurized fluid to the clutch chamber. Exhausting of the clutch chamber is effected through one of two alternate paths utilizing deactivation of one of the trim and blocking valves. Back up exhausting of the clutch chamber is effected through the other of the alternative paths. Such system allows for determination of valve failures and continued operation until such failures can be rectified.

The invention relates to an immediate processing method for hydraulic filling an ultra-soft foundation by modified vacuum preloading and water-covering preloading. The technical proposal of the invention comprises the following steps of: building a float bridge on a mud area in a causeway, laying a plastic woven cloth on the mud area, fixing the plastic woven cloth on the causeway and the float bridge, horizontally laying a water discharge branch pipe on the plastic woven cloth, inserting a plastic water discharge board around the water discharge branch pipe in the mud of the mud area, horizontally laying a water discharge main pipe on the plastic woven cloth in the direction perpendicular to the water discharge branch pipe, connecting one end of the water discharge main pipe to a vacuum pump, laying a geotextile on the water discharge main pipe and the water discharge branch pipe, laying a vacuum film on the geotextile, and arranging a water load on the vacuum film. The invention solves the technical problems of unenforceable construction existing in the traditional vacuum preloading foundation treatment method, and has the advantages of simple process, convenient construction and lowered cost. Besides, after the hydraulic filling of the foundation is completed, the foundation can be immediately processed, thereby greatly shortening the foundation processing period, and ensuring that the invention is a very economical and practical soft foundation processing method.

The invention relates to a filling method of blown sand expansion polystyrene particle mixed light road embankment filling, which is a novel road embankment filling technology, and is an effective method for lightening road embankment load, and is a novel technique for saving earth which is used in construction of high speed road and reducing soft earth ground foundation process, and is a breakthrough of green circulating economic construction and development technique. The main procedures of the technology comprise measuring grain composition curve of blown sand particles, defining two parameters of blow sand EPS mixed light filling with different proportions, namely, the largest dry density and the optimum water content, defining unconfined compressive strength of blow sand EPS mixed light filling with different proportions, allocating and stirring blow sand EPS mixed light filling on site, blow sand EPS mixed light road embankment construction, blow sand EPS mixed light road embankment filling technology, blow sand EPS mixed light road embankment grinding technology, and blow sand EPS mixed light road embankment maintaining.

The invention provides a method for treating a soft soil foundation through combination of a bagged grouting gravel pile and vacuum preloading. The method comprises the steps that (1) shallow vacuum drainage pretreatment is conducted on the soft soil foundation to form a construction machinery work platform with a certain strength and bearing capacity; (2) bagged grouting gravel pile construction is carried out through an immersed tube method, and grouting tubes are embedded in the pile; (3) the bagged grouting gravel pile serves as a vertical drainage channel, and the deep soft soil foundation is treated through directly draining type vacuum preloading; and (4) grouting is conducted on the bagged grouting gravel pile through the embedded grouting tubes, the strength of a pile body is improved, and a rigid pile composite foundation is formed. By means of the method for treating the soft soil foundation through combination of the bagged grouting gravel pile and vacuum preloading, the purposes of economy and environmental protection are achieved, construction is easy and convenient, and a sand cushion is omitted; the method is applicable to treatment of a large-area ultra-soft clay foundation with the very high moisture content or a large-area new hydraulic fill mud foundation with the very high moisture content; the reinforcing efficiency is remarkable, the foundation treatment period can be substantially shortened, and the cost of construction is reduced.

The invention relates to a desalination method of hydraulic fill sea mud. The method comprises the following steps: 1. laying underground buried pipes in a hydraulic fill region, deep plowing soil layer; 2. after performing alternate flooding and drying and alternate freezing and thawing in winter and spring, mixing carbide slag and skeletal material with hydraulic fill sea mud, wherein the volume ratio of hydraulic fill sea mud to carbide slag and skeletal material is 0.5-0.65:0.01-0.5:0.25-0.5, stirring evenly; and 3. irrigating and desalting the mixed hydraulic fill sea mud, discharging flushing water through the underground buried pipes. The beneficial effects of the invention are as follows: the penetration rate and chemical property of hydraulic fill sea mud are changed and the penetration ability and desalination speed of hydraulic fill sea mud are increased, thus the salinity of hydraulic fill sea mud can be reduced below the tolerance level of plant growth in a short time, the desalination cycle of the prior art can be greatly shortened, and the efficiency of water used for desalination is increased at the same time.

The invention discloses a conductive composite vacuum soft soil reinforcing prepressing method which comprises the following steps: 1, manually inserting a plurality of rows of conductive plastic drainage plates on a processed soil body, and externally retaining appropriate lengths; 2, connecting the conductive plastic drainage plates with the positive pole or negative pole of a pulse current particularly in such a way: the first row of conductive plastic drainage plates are connected with the positive pole or the negative pole of the pulse current, the second row of conductive plastic drainage plates are connected with the negative pole or the positive pole of the pulse current, and so on; 3, arranging a flexible pipe on the surface of the processed soil body, wherein one end of the flexible pipe is communicated with the externally retained parts of the conductive plastic drainage plates, and the other end of the flexible pipe is connected to vacuum extraction equipment; and 4, paving a vacuum membrane on the processed soil body, and carrying out vacuum extraction prepressing under the vacuum membrane. The conductive composite vacuum soft soil reinforcing prepressing method disclosed by the invention can achieve the purpose of fast and economic soft soil foundation processing when processing a soft soil foundation and particularly processing a soft soil foundation which has initial bearing capacity almost equal to zero, of a coastal beach, a newly hydraulic fill area, and the like, can also prevent the cumbersome mechanical equipment from being used, thereby reducing the construction cost.

The invention relates to a dry and dense resonance method for reinforcing a soft soil foundation of new hydraulic-fill sand. The method is suitable for reinforcing the soft soil foundation of the new large-area hydraulic-fill sand quickly. The method comprises the following steps of: 1, establishing resonance equipment; 2, distributing points in a constructional area; 3, dewatering in the constructional area, namely dewatering in a mode of combining light well-point dewatering with the water pumping of a vibrator, and performing resonance by using the vibrator after the water level of underground water is reduced to a certain range; 4, performing vibration retention for the first time, namely performing the vibration retention after the vibrator reaches the required depth; 5, performing the vibration retention stage by stage, namely lifting the vibrator by 0.4 to 0.6 meter to perform the vibration retention for the second time after the reinforced depth is reached and the first-time vibration retention is performed, and performing the vibration retention stage by stage in a mode of lifting the vibrator by 0.4 to 0.6 meter until the vibrator is lifted to the ground surface; and 6, performing counterpoint on resonance points, namely during resonance, after a group of double-end or three-end resonance is completed, guiding double-end or three-end resonance equipment to the other group of point positions which need to be resonated by using a crane to perform the next group of resonance. The dry and dense resonance method has a good sealing effect, and the problem of performingresonant construction on sludge interlayers is solved.

The invention discloses a method for processing ultra-soft soil through combining shallow-surface-layer intermittent strong water-pumping/draining with short-term air-curing. The method comprises the following steps of: arranging horizontal water-pumping/draining pipe networks in a shallow-surface layer of an ultra-soft soil body, arranging water-draining pipe trenches in the surface layer and connecting the horizontal water-pumping/draining pipe networks and the water-draining pipe trenches with water-pumping/draining equipment so as to form a three-dimensional surface-layer water-pumping/draining system for shallow-surface-layer ultra-soft soil; carrying out intermittent strong water-pumping/draining and being aided with surface-layer drainage by using the water-pumping/draining equipment; and meanwhile, combining with the short-term air-curing by using the climate characteristics of strong sunlight and strong wind of coastal areas. According to the invention, the reinforcement for the shallow-surface-layer ultra-soft soil can be effectively and rapidly achieved, thus the invention provides a reinforcement treatment method which is applied to ultra-soft foundations, the shallow-surface layer of which is made of sludge or hydraulic-filled sludge and can greatly save cost.

The invention relates to a given force splitting and grouting reinforced type composite foundation construction method which is used for reinforcing the foundation of hydraulic fill sand soil and mixed fill soil; the given force effect is continuously exerted on the soil body by a borer and sleeve type high-pressure grouting equipment; a grouting pipe is inserted to a straight hole position or a slant hole position; a prepared granular mixed grout is poured to the grouting pipe for a veined splitting continuous grouting in order that the grout can form a vein-dissevering shaped and beaded shaped grout-coated concretion body and a pilaster-shaped grout-coated concretion body in a proper part of the soil body and form an uneven composite foundation with the soil body; for the reinforcement of the hydraulic fill sand soil, the standard of the given force is controlled in a scope of 0.78 to 0.92; for the reinforcement of the mixed fill soil; the standard of the given force is controlled in a scope of 0.82 to 0.94; the given force control standard is utilized to achieve the need of the compactness of the reinforced type grouting composite foundation.

The invention relates to a numerical simulation method for dredging dredged sediment filling in open water area, which adopts numerical simulation method and uses mike21 software to carry out simulation analysis and calculation, and adopts finite volume method based on element center to carry out discrete solution for two-dimensional shallow water control equation in numerical simulation. The spatial discretization of the numerical simulation model is based on the finite volume method, dividing the computing region into grids, the overlapping entities are generated into discrete grids by solving the governing equations, using the triangular meshes provided by Mike 21 is used for computing, in mike21 water conservancy analysis software, a two-dimensional hydrodynamic model is established, and then the sediment transport module is used to establish the model of the entire external environment. The parameters of external environment factors are inputted for simulation analysis, and the target output is obtained. By comparing the simulation results with examples, the accuracy of numerical simulation calculation in dredging and hydraulic fill engineering is verified.

The invention relates to the field of coral sand foundation treatment, in particular to a reinforcement construction method with coral sand foundation deep vibroflotation cooperating with shallow watering impact rolling. According to the characteristics that a hydraulic fill coral sand foundation which is subjected to land fill again after the site is transferred is loosened, low in compactness and high in compressibility, the foundation treatment method with a vibroflotation method being combined with a watering impact rolling method is provided, wherein the vibroflotation method is used forthe foundation of which the depth is 1.0 m or above, and the watering impact rolling method is used for the shallow foundation of which the depth is smaller than 1 m. The construction method combinesthe two foundation treatment methods, the compactness of the hydraulic fill coral sand foundation can be remarkably improved, the foundation bearing capacity is improved, the foundation post-construction settlement is reduced, and the construction method has the advantages that operation is easy, the targeted performance is high, and the effect is good.

The invention relates to a fan-shaped bow jet positioning and control method for a trailing suction hopper dredger, and belongs to the technical field of ship dynamic positioning. The fan-shaped bow jet positioning and control method for the trailing suction hopper dredger comprises the following specific steps: 1, thrust computation: a dynamic positioning system is used for carrying out thrust computation and thrust distribution; 2, power management mode determination: during the fan-shaped bow jet of the trailing suction hopper dredger, a power management system provides two operating modes, the first management mode is a normal dredging mode and is suitable for trailing suction dredging and hydraulic fill operation, and the second management mode is suitable for the dredging operation and mud dumping of a single dredge pump and the hydraulic fill operation of a single pump/a power-reduced double pump; 3, the fan-shaped bow jet positioning process of the trailing suction hopper dredger: after the bow jet begins, under the automatic dynamic positioning mode, the dredger performs fan-shaped bow jet within a set pendulum angle until the bow jet and mud dumping of the whole dredger are finished. The fan-shaped bow jet positioning and control method has the advantages that the operation is convenient, the control is precise, and the quality and efficiency in bow jet and mud dumping of the trailing suction hopper dredger can be greatly improved.

The invention discloses a method for measuring the slurry concentration in a pipeline and relates to measurement of the slurry concentration in dredging and hydraulic fill projects. The invention provides a measuring method for slurry concentration in a pipeline, and the method is environment-friendly, reliable, economic, practical and free from limitation of the pipe diameter. According to the measuring method for slurry concentration in the pipeline, measurement connecting pipe sections which are connected in a conveying pipeline in series are adopted. The method for measuring the slurry concentration in the pipeline is characterized in that a plurality of conductivity sensors are evenly installed on the measurement connecting pipe sections, the conductivity sensors transmit the measured conductivity output signals to a data acquisition instrument through shielding cables, the data acquisition instrument is connected with a personal computer (PC), the PC sets up backstage analyzing processing software according to the conductivity of the slurry under different concentrations, and the backstage analyzing processing software calculates the slurry concentration in the pipeline by means of the collected conductivity data. The method for measuring the slurry concentration in the pipeline can be used for a cutter suction type or a trailing suction type dredger in the dredging and hydraulic reclamation projects or on occasions where the slurries are conveyed by means of pipelines.

The invention discloses a horizontal drainage and quick consolidation method for reinforcing new hydraulically filled sludge and pipe-laying equipment thereof, wherein a plurality of layers and a plurality of rows of horizontal drainage channels are laid in the sludge, and both the interlayer spacing and the spacing in rows are approximately between 60 and 80 centimeters so as to form a high-density under-sludge drainage network; and the network is hermetically connected with hermetical ground horizontal drainage pipes, is connected with jet drainage devices and performs air suction and pumping, so that the new hydraulically filled sludge can be quickly reinforced within a short period. The equipment for realizing the method comprises a horizontal pipe-laying machine, an undercarriage, a shifter which can move on water or the sludge, and the like. The construction method and the equipment solve the problem that personnel and equipment cannot operate on the new hydraulically filled sludge, simultaneously can quickly and conveniently reinforce the new hydraulically filled sludge, has low manufacturing cost, and is environment-friendly, safe and reliable,, and the method solves the problems of quick hydraulic fill and continent making and reinforcement of river beds and dam beds.

The invention relates to a drainage consolidation method for hydraulic filling soft clay reinforcement. The method includes: performing operation area division on a construction foundation pit; erecting drainage curtain walls and collecting wells at the edges of an operation area; hydraulically filling the operation area with soft clay; horizontally paving flexible drainage plates; performing hydraulically filling of the soft clay and pavement of the flexible drainage plates again till specified elevation is reached; arranging sand cushions at the tops of the drainage curtain walls, burying a vacuum pipe network, connecting vacuum jet pumps, and then paving sealing films for closing; turning on the vacuum jet pumps for vacuum pumping, and stopping the vacuum jet pumps when specified end conditions are reached. By the aid of the characteristics of layer-by-layer hydraulic filling of the soft clay for step-by-stay rising and layer-by-layer arrangement of the horizontal drainage plates, drainage is performed by the aid of geostatic stress of the hydraulic filling soft clay, energy consumption is lowered greatly, the construction period becomes an effective drainage period, formation of a soil mass structure is quickened, total construction period is shortened, a large quantity of materials are saved, formation of a shallow layer and compact layers surrounding the drainage plates can be prevented, excellence of the soil mass structure is guaranteed, and soil mass drainage capacity is improved.

The invention relates to hydraulic fill curing agent mixing equipment, which is installed and connected at a position close to the outlet of the end section of a hydraulic fill delivery pipe. The hydraulic fill curing agent mixing equipment is characterized in that the main body of the hydraulic fill curing agent mixing equipment is a section of rifle delivery pipe. The size of the rifle delivery pipe is consistent with the size of the dredged sludge delivery pipe. The rifle delivery pipe is connected in the hydraulic fill delivery pipe. The middle part of the hydraulic fill curing agent mixing equipment is connected with a curing agent chamber through a curing agent delivery pipe. The other end of the curing agent delivery pipe is connected with the rifle delivery pipe from the side surface. By using a rifle technology, hydraulic fill is enabled to rotate and form a mixed flow, curing agent is automatically sucked in through the delivery pipe by using negative pressure formed close to a pipe wall due to the rotation of a water flow and then the curing agent is fully mixed with the fill. An equipment guarantee is provided for the large-scale engineering application of the curing agent. The problem in large-scale hydraulic filling and reclamation is solved.

The invention provides an underground coal mine hydraulic filling double track lifting locomotive, which comprises two I-steel tracks, a mine car hanged on the track and a PLC controller; The two I-steel tracks are arranged paralleled and are suspended on the top board by an anchor pole, and each I-steel track is suspended with the mine car, and the mine car is suspended on the I-steel track by a bearing dolly; the mine car is connected with a wire rope by a traction mechanism, and one end of the wire rope is connected to the mine car, and the other end is connected to a hydraulic station by a directive wheel and a friction wheel, and the friction wheel is driven by a low speed large torque motor; the hydraulic station is an enclosed system comprising a variable pump and a quantitative motor for realizing constant power speed regulation, and the quantitative motor is provided with a speed sensor for detecting the rotating speed of the quantitative motor, and the PLC controller is used for controlling the operation of the mine car by the rotating speed which is detected by the speed sensor.

The invention provides a method for improving the hydraulic fill flatness. The method comprises the following steps that hydraulic fill pipes are laid in areas to be hydraulic-filled, and an energy dissipater is installed and arranged at the tail end of each hydraulic fill pipe; when each hydraulic fill pipe is in a non-oscillating state, the distance between each hydraulic fill pipe head and a boundary point of coverage of the corresponding hydraulic fill pipe head, the angle between the connecting line between each hydraulic fill pipe head and the boundary point of the coverage of the corresponding hydraulic fill pipe head and the axis of the corresponding hydraulic fill pipe head and the perpendicular distance between the axis of each hydraulic fill pipe head and a corresponding temporary cofferdam are acquired, and the oscillating angle of each hydraulic fill pipe is acquired through calculation; based on the oscillating angles of the hydraulic fill pipes, filling is conducted on ahydraulic fill area. According to the method for improving the hydraulic fill flatness, through additional arrangement of the energy dissipaters on the hydraulic fill pipes, the dispersal area of each hydraulic fill pipe is improved, impulsive force of each pipe orifice is reduced, and then the purposes of accurately controlling the elevation of the hydraulic fill area and improving the hydraulicfill flatness are achieved.

The invention discloses a positive and negative-pressure rapid consolidation method of hydraulic-filled sludge based on strength control. The positive and negative-pressure rapid consolidation method is characterized by comprising the following steps of arranging a drainage system in hydraulic-filled soft soil; arranging a moisture content detector in the hydraulic-filled soft soil; arranging a sealing film on the hydraulic-filled soft soil; then applying positive-pressure stack loads to the sealing film, and calculating the undrained strength of the hydraulic-filled soft soil in real time according to the moisture content measured by the moisture content detector; and starting the drainage system when the undrained strength, which is calculated according to the moisture content measured by the moisture content detector, of the hydraulic-filled soft soil reaches 1.5 kPa.

The invention discloses a construction method of new hydraulic fill muck reclamation by a twice straight-line vacuum prepressing treatment. The treatment of the hydraulic filled soft earth foundation by the vacuum prepressing treatment is no longer limited to the natural drying time after finished the hydraulic fill by layering the new hydraulic fill muck and reinforcing the new hydraulic fill muck step by step, accordingly the reclamation construction period is effectively shortened. In the vacuum prepressing process, a shallow layer drainage pretreatment and a deep layer vacuum prepressing are sequentially acted on the new hydraulic fill muck layer having a high water content, a poor soil property and a low foundation bearing capacity twice, accordingly achieving the optimal integration of the investment and ensuring the treatment quality of the muck foundation. Meanwhile, the working layer is constructed by utilizing the shallow layer pretreatment in combination with the hydraulic fill silt, thus the mechanization level and the efficiency of the deep layer vacuum prepressing are greatly increased, the working surface is more stable, the on-site construction environment is more tidy and clean, and the construction process is more smooth and orderly.

A method for varying automatic-transmission clutch-pressure duration by determining the clutch-pressure duration at least in part as a function of atmospheric pressure to account for a slower hydraulic fill rate associated with automatic-transmission hydraulic clutches at high altitudes.

The invention relates to an automatic suction and cleaning device for secretion of the upper portion of an airbag of a trachea cannula. The device comprises a shell, an infusion pump, a secretion storage tank, a cleaning liquid storage tank and a control circuit board. An inlet pipe and an outlet pipe are arranged on the infusion pump. The device is characterized in that an infusion pipe and a hydraulic filling liquid level meter are arranged in the secretion storage tank, the infusion pipe is communicated with the outlet pipe through a first single-way valve, and a cleaning pipe and an emptyliquid level meter are arranged in the cleaning liquid storage tank; the lower end of the cleaning pipe is located at the bottom of the cleaning liquid storage tank, the upper end of the cleaning pipeis communicated with the outlet pipe through a second single-way valve, and during use, the inlet pipe is communicated with a suction pipe on the trachea cannula. According to the suction and cleaning device, secretion and backflow residues in the trachea of a patient can be automatically sucked out, cleaning liquid can also be used for cleaning the suction pipe and the upper portion of the airbag of the trachea cannula of the patient, complications, such as pneumonia and asphyxia, of the patient can be effectively avoided, and the automatic suction and cleaning device has the obvious advantages and is suitable for application and popularization.