17results about How to "Improve engineering performance" patented technology

The invention discloses an anti-stripping warm mix asphalt regenerant with high and low temperature performances. The regenerant comprises the following components: a common asphalt regenerant; a viscosity reducer; a crosslinking curing agent; a slow crosslinking agent; the mass ratio of the common asphalt regenerant to the viscosity reducer to the cross-linking curing agent to the slow cross-linking agent is 100: 10: (30-90): 5. The regenerant can enhance workability and reduce carbon emission in the regeneration process of the aged asphalt mixture, the regenerated asphalt mixture has excellent high-temperature deformation resistance, low-temperature crack resistance and stripping resistance, the engineering problems of low-carbon regeneration and durable service of the aged asphalt mixture can be greatly solved, the preparation process is simple, the cost is low, and the method is suitable for industrial production. The process is low-carbon and efficient, equipment does not need to be transformed and upgraded, the resource utilization rate is high, and economic, environmental and social benefits are remarkable.

The invention discloses a well cementation cement system suitable for an ultra-deep well and a preparation method of the well cementation cement system. The well cementation cement system comprises the following components in percentage by weight: 51-68wt% of G-grade oil well cement; 10 to 15 wt% of a first reinforcing material; 20 to 30 wt% of a second reinforcing material; 1-2 wt% of a high-temperature stabilizer; 1-2 wt% of a dispersant; the first reinforcing material is formed by mixing quartz sand and nano silicon dioxide according to the mass ratio of 15: 1. The well cementation cement system has excellent engineering performance, the admixtures have good adaptability and high high-temperature compressive strength and do not decline, a large amount of solid waste is used as main raw materials, and the well cementation cement system has the advantages of being environmentally friendly and low in cost.

The invention discloses a geogrid and EICP synergistically reinforced soil embankment structure and a construction method, and relates to the technical field of soil embankment structures. Comprising a pavement base layer, an embankment bearing layer and a natural soil foundation layer, and the natural soil foundation layer is used as a soil embankment structure support and is arranged at the bottommost layer; the pavement base layer is used for bearing an upper driving load and uniformly transferring the upper driving load to the embankment bearing layer below; and the embankment bearing layer is used for bearing the upper load transmitted by the pavement base layer. The engineering performance is improved through the multi-layer synergistic effect, the core reinforcing layer is of an innovative space grid structure and is composed of a prefabricated geogrid, a grid support arranged in the inclined direction and a rigid stress plate frame, a three-dimensional force transmission network is formed, the limitation of a traditional reinforcing method is broken through, and the engineering performance is improved. In addition, the grating support is arranged at a specific angle, the structural rigidity is guaranteed, and the stress concentration phenomenon is avoided.

The invention provides a construction method of a multi-element solid waste-based cementing material roadbed filler, and relates to the technical field of road engineering, and the construction method comprises the following steps: S1, selecting raw materials: fly ash, slag powder, carbide slag powder, desulfurized gypsum powder, gasified slag powder, coal gangue powder, steel slag powder, tailing powder, coal cinder powder, building solid waste powder and municipal waste powder; s2, raw material pretreatment; s3, preparing a composite exciting agent: preparing sodium sulfate, calcium hydroxide, calcium chloride, calcium sulfate, sodium silicate and sodium hydroxide; s4, preparing a composite exciting agent solution; s5, preparing a multi-element solid waste-based cementing material: uniformly mixing the raw materials pretreated in the step S2 with the composite activator prepared in the step S4 according to a ratio; s6, roadbed laying, wherein a sodium bentonite waterproof blanket is laid on the bottom layer of the roadbed and then laid; s7, geogrids are laid; s8, maintenance is conducted; through fine selection and proportioning of the raw materials, efficient resource utilization of various industrial solid wastes is realized.

The invention relates to the technical field of geotechnical engineering, and particularly discloses a granite weathered soil 3D particle morphology quantitative characterization technology which comprises a three-dimensional scanning subsystem, an intelligent image processing subsystem, a morphological parameter calculation subsystem, a data mining and machine learning subsystem, a virtual simulation and optimization design subsystem and a user interaction interface subsystem. The three-dimensional scanning subsystem is used for acquiring three-dimensional form information of granite weathered soil particles by using a high-precision three-dimensional scanning technology; according to the technology for quantitatively characterizing the 3D particle morphology of the granite weathered soil body, the particle morphology can be presented in a high-precision mode, researchers can observe and analyze the fine structures and characteristics of the particles more intuitively, the behaviors of the particles in a complex environment can be accurately predicted, and the analysis accuracy of the particles is improved. Reliable reference basis is provided for engineering application, potential risks can be evaluated in advance, and corresponding countermeasures can be formulated.

The invention discloses a method for preparing a road base material by using incineration slag and polluted sludge, which comprises the following steps: carrying out wet tempering and chemical modification on the incineration slag to obtain activated incineration slag; treating the solid-phase sludge by using low-temperature plasma to obtain pretreated sludge; uniformly mixing the activated incineration slag and the pretreated sludge to obtain a mixed raw material; adding a mineralizer into the mixed raw material, uniformly mixing, and adding water to obtain a reaction wet material; performing hydrothermal reaction on the reaction wet material to obtain a mineralized material; and uniformly mixing the mineralized material with the water glass solution to obtain the road base material. According to the method, heavy metals in the incineration slag and the polluted sludge are promoted to react with the mineralizing agent under the hydrothermal treatment condition, so that the heavy metals are solidified and stabilized, and the long-term leaching risk of the heavy metals in the roadbed and the mobility of the heavy metals in the environment are effectively reduced. Meanwhile, a thermodynamically stable mineral phase is generated by hydrothermal treatment, so that the strength, durability and compression resistance of the roadbed material are remarkably enhanced.

The invention discloses a preparation method of a modified PBO fiber toughening agent for well cementation under a high-frequency alternating injection-production condition, and belongs to the technical field of well cementation materials. The method comprises the following steps: obtaining PBO fibers; the method comprises the following steps: soaking PBO fibers in an acetone solution, cleaning and drying; weighing heavy calcium carbonate, ethanol, a silane coupling agent and deionized water, mixing and stirring to obtain a modified solution; pBO fibers are added into the modification solution, the mixture is placed in a magnetic stirrer to be stirred at a high speed for 30-90 min, and primary modified PBO fibers are obtained; and putting the primarily modified PBO fiber into a beaker containing deionized water, putting the beaker into an ultrasonic cleaner, and treating for 20-40 minutes to obtain the modified PBO fiber toughening agent. According to the present invention, the raw materials are cheap and easily available, the preparation process is controllable, the product performance is stable, the compatibility is good, and when the cement paste is used for the well cementation operation, the formation environment and the working condition faced by the air energy storage well can be met, and the success rate of the well cementation construction can be improved.

The present invention relates to a reinforced earth water retaining dam, which belongs to the field of water retaining dams in water conservancy and hydropower engineering. The present invention includes a water retaining dam base built with reinforced earth, the water-facing surface of the water retaining dam base is a slope with the top inclined downstream, a cushion layer and a slope surface concrete anti-seepage panel are arranged in sequence from the inside to the outside on the water-facing surface of the water retaining dam base, a top concrete anti-seepage panel is arranged on the top of the water retaining dam base, the top concrete anti-seepage panel and the slope surface concrete anti-seepage panel are combined into a whole, a sill is arranged at the downstream end of the top concrete anti-seepage panel, and a concrete support panel is arranged on the downstream slope of the water retaining dam base. The present invention provides a reinforced earth water retaining dam that can overflow by itself and has a simple structure, strong adaptability and low investment cost.

The prepared composite regenerant comprises a common asphalt regenerant, an auxiliary viscosity reducer, a reaction regenerant and an anti-aging agent in a mass ratio of 100: (25-50): (1-3): (5-15). The preparation method of the viscosity-reducing and life-prolonging type warm-mixing recycled asphalt comprises the following steps: heating aged asphalt to a warm-mixing temperature of 125-150 DEG C, adding 5-10% of the composite regenerant, and mixing for 5-15 minutes to obtain the viscosity-reducing and life-prolonging type warm-mixing recycled asphalt. The method is wide in application range, has universality, and can be used for regeneration of common asphalt such as common matrix asphalt, SBS modified asphalt, rubber asphalt or polymer composite modified asphalt; the viscosity of the recycled asphalt in the mixture can be obviously reduced, the high and low temperature performance and the deformation resistance of the recycled asphalt can be synchronously improved, and meanwhile the service life of the recycled asphalt is obviously prolonged.

The invention discloses a target system for advanced planning and production scheduling (APS) and a unified construction method and an extension system thereof. By establishing a mapping relationship between business constraints and decision elements, standardizing a data structure and a management process of decision factors, and combining an operator target construction link with a template scene library, automatic construction and dynamic reconstruction of an optimization target are realized. In order to solve the problem that the business target cannot be satisfied, the invention provides a decision-making target switching mechanism and a constraint softening mechanism so as to generate an executable scheme which can be satisfied to the greatest extent. And meanwhile, weight management methods such as weight cutting, normalization, sensitive scanning and automatic optimization are provided, so that the numerical stability and interpretability of the target construction process are ensured. The system supports cloud, local and hybrid deployment, can improve solution robustness, business adaptability and decision efficiency, and promotes engineering landing and popularization of the APS in a manufacturing industry scene.

The utility model relates to an integrated circuit pressing plate device in the technical field of integrated circuit pressing plates, which comprises a mounting piece, a first vertical connecting piece is fixedly connected to the bottom of the mounting piece downwards, and a second vertical connecting piece is fixedly connected to one end, far away from the first vertical connecting piece, of the mounting piece downwards. The first vertical connecting piece is fixedly connected with a first pressing strip in the horizontal direction, the second vertical connecting piece is fixedly connected with a second pressing strip in the horizontal direction, and the first pressing strip and the second pressing strip are not directly connected. According to the device, the middle part of the connecting rib is removed, the non-Die area pressing is added, the non-Die area of the whole nail frame can be pressed, so that the nail frame cannot be tilted after being heated, in addition, the original pressing plate windowing design is improved, the limitation that a hollow nail frame product must be coated with a film in advance is overcome, and even if a pre-tape heating product is not used, the whole nail frame cannot be coated with the film in advance. By means of the improvements, the engineering capacity is remarkably improved, and the production efficiency and the economic benefits are improved.

The invention discloses a temperature-resistant, high-strength and high-toughness well cementation cement system and a preparation method thereof. The temperature-resistant, high-strength and high-toughness well cementation cement system comprises the following components in percentage by weight: 41-56wt% of low-heat Portland cement; 5 to 10 wt% of granite waste; 12-16 wt% of a strength modifier type I; 22-24 wt% of a strength modifier type II; 2-4 wt% of a toughness modifier; 2-3 wt% of a high-temperature stabilizer; and 1-2 wt% of a dispersant. The temperature-resistant high-strength and high-toughness well cementation cement system has the characteristics of high high-temperature strength, no recession, high toughness, low permeability, good channeling resistance, excellent engineering performance and the like; in addition, a large amount of solid waste is adopted, environmental pressure is reduced, and the method is environment-friendly and low in cost.

This invention relates to the field of concrete anti-corrosion materials technology, specifically to a high-strength and tough concrete anti-corrosion material layer for marine and industrial corrosive environments and its preparation method, comprising the following steps: S1. Pouring the base concrete, performing directional roughening / grooving treatment on the adhesion surface of the protective structure before final setting, cleaning the bonding surface after natural curing, applying a modified interface adhesive to the bonding surface, drilling holes and inserting shear anchor bars for fixation, thus obtaining an interface-reinforced matrix; S2. Preparing the modified functional layer material; S3. Pouring and vibrating the modified functional layer material, performing surface finishing treatment, covering with a moisture-retaining film after initial setting, and curing to obtain the concrete anti-corrosion material layer. This invention, through the synergistic effect of the modified functional layer, modified interface adhesive, and modified UHMWPE fibers, enables the protective layer to deform in tandem with the base concrete, eliminating the risk of debonding, delamination, and hollowing under wet-dry cycles, temperature stress, and structural stress, and can be applied on a large scale in port, bridge, chemical, and municipal engineering projects.

The invention relates to an integrated detection system and method for insulation defects of a valve side sleeve, and belongs to the technical field of insulation detection. A test platform under a controllable environment condition is constructed through integrated alternating current and direct current superposition voltage generation, partial discharge measurement, a shielding cabin body and a temperature and air pressure control structure; on the basis, alternating current and direct current 1: 1 superposed voltage is selected as a preferable detection working condition, and typical defects are quantitatively distinguished by utilizing a relative decreasing amplitude index of partial discharge initial voltage, so that engineering diagnosis of the insulation defects of the valve side bushing is realized. According to the method, the controllability of a test environment and the stability of partial discharge measurement are ensured, so that the detection system and method based on the 1: 1 superposition working condition and the K criterion have relatively high defect identification sensitivity, and also have relatively good engineering implementation and repeatability; and beneficial technical support can be provided for insulation state evaluation and operation maintenance of the valve side sleeve in an extra-high voltage direct current transmission project.

The application discloses an anchor design method for an irregular boundary slope surface based on a topological relation and is suitable for the technical field of dangerous rock mass prevention and control, and comprises the following steps: S1, determining an anchor arrangement area and establishing a two-dimensional plane corresponding to a three-dimensional model of the anchor arrangement area based on computer graphics; S2, defining an anchor arrangement rule based on the topological relation; S3, dividing the anchor arrangement area based on the anchor arrangement rule and the two-dimensional plane to obtain a division result; and S4, arranging anchors and updating anchor position space topological relations and anchor related information according to the division result. The three-dimensional irregular slope surface is projected on a two-dimensional plane for anchor arrangement through the topological relation, and the anchor arrangement rule is set, so that efficient, quick and compatible arrangement of various reinforcement combination schemes on the irregular geological body is realized, and then reinforcement engineering quantity is quickly and accurately counted, and the design efficiency is effectively improved.

This invention discloses a multi-model adaptive fusion method and system for predicting flower price indices, belonging to the fields of smart agriculture and flower big data technology. Addressing the strong seasonality, holiday effects, significant varietal differences, and lag in price transmission characteristic of flowers, this invention proposes specific data preprocessing: distinguishing outliers from holiday fluctuations and supplementing missing values ​​with industry experience; constructing derived features such as demand intensity and supply risk; designing scenario-driven dynamic model routing, configuring models and factor weights differently according to short / medium / long-term periods, with long-term prediction using LSTM+Optuna automatic optimization; automatically matching stable / volatile / small-sample specific models according to flower categories; dynamically weighting and fusing sub-model historical errors, combining regional and channel-specific weights to achieve price conversion across three ends, and constructing an error closed-loop iteration mechanism and engineering optimization. This invention achieves high-precision multi-period prediction with an accuracy ≥95%, adapting to 60+ mainstream flower categories, and supporting full-chain decision-making.

This invention relates to the field of satellite on-orbit measurement, control, and maintenance technology, and particularly to a method for identifying the jamming position angle of a two-dimensional turntable on an on-orbit satellite using current scanning. The technical solution includes a process for identifying the jamming position angle of a two-dimensional turntable on an on-orbit satellite using current scanning. This invention analyzes the current response characteristics of the turntable drive motor on the primary bus, reverse-engineers the physical location of the jamming point, and establishes a high-order nonlinear mapping relationship between the motor's energizing time and rotation angle position through a uniform rotation calibration experiment on the ground using a dynamic simulation platform highly consistent with the on-orbit state. This mathematical model is then solidified into the satellite's computer as a benchmark calculation formula, significantly improving the engineering capabilities for on-orbit fault diagnosis and maintenance support.