637 results about "Deformation control" patented technology

The invention relates to the technical field of welding deformation control, and discloses a multi-stage adjusting method and system for steel structure welding deformation control. The method comprises the steps that steel member parameters are measured, a welding deformation prediction model is established, and pre-deformation data are obtained; performing accurate pre-deformation processing according to the data; executing segmented welding and recording a temperature field and a deformation amount; performing local heat treatment on the high-stress area to obtain stress distribution; correcting a deformation area by using multi-point force; and performing precision detection and quality evaluation according to the corrected data to form a control file. According to the method, high-precision control over welding deformation of the complex steel structure is achieved through data transmission and feedback adjustment of all stages.

The embodiment of the invention provides a turning and milling combined machining deformation control method and system for a special-shaped part, and is used for the technical field of numerical control machining. The turning and milling combined machining deformation control method for the special-shaped part comprises the steps that structural feature analysis and process association marking are conducted on design data of the special-shaped part to generate a feature association data set, and clamping and process planning are conducted according to a machining constraint database and the feature association data set to generate initial turning and milling combined machining process data; cutting parameter multi-objective optimization solution is carried out on the initial turning-milling combined machining process data to obtain a turning-milling cutting parameter set, and multi-axis linkage analysis and instruction collaborative planning are carried out on the turning-milling cutting parameter set according to the equipment operation feature set to generate a combined machining control instruction set. According to the method, through part key feature recognition and risk marking, combined machining control instructions are generated after layered digital twinning verification in combination with process multi-objective optimization, and the one-time qualified rate of special-shaped part machining and turn-milling combined machining process stability are improved.

The present invention provides a steel support system for foundation pit support, belonging to the field of foundation pit support, and is used to support the foundation pit in foundation pit engineering. Foundation pit construction is extremely likely to cause damage such as settlement of surrounding buildings and municipal pipelines, so there are very high requirements for construction quality and deformation control. In the prior art, the steel supports that can achieve axial force compensation have problems of high cost and weak structure. This steel support system includes a plurality of steel supports, and both ends of the steel supports are respectively connected to the foundation pit side through quick-installation and quick-disassembly structures. The steel support includes a flexible section and an adjustment section. Two flexible sections are respectively arranged at both ends of the steel support. The flexible section includes a flexible head and a fixed head that are slidably matched, and the adjustment section is arranged inside the steel support. With the cooperation of the sliding function of the flexible section and the telescopic function of the adjustment section, the overall length of the steel support can be adjusted. In the present invention, the entire steel support system only requires a set of servo adjustment mechanisms, having the effects of low cost and high reliability.

The invention relates to the technical field of construction control, in particular to an underground super-long thick and large concrete structure construction control method and system.The method comprises the following steps that through vertical displacement and strain data, trend extraction nodes are analyzed, difference sections are divided, load recognition influence areas are positioned, and structural sections are sequenced according to fluctuation increments; and adjusting cooling, supporting and loading parameters to form an intervention arrangement, and performing year-on-year adjustment based on construction data to generate feedback to complete regulation and control. According to the method, load-deformation dynamic mapping is established through time sequence association of displacement and strain data, a difference section identification mechanism is constructed based on time difference comparison, natural deformation and load surge response are distinguished, fluctuation characteristics of a load surge section are extracted to form response sensitivity ranking, and cooling parameters and a loading sequence are dynamically adjusted in combination with increment comparison. Graded regulation and control are realized, space-time dimensions of construction records and monitoring data are coupled, the crack positioning precision is improved, the predictability of deformation control is enhanced, and the regulation and control redundancy cost is reduced.

The invention relates to the technical field of titanium alloy welding deformation control, in particular to a device and method for controlling titanium alloy welding deformation, and the method comprises the following specific steps: S1, preparation before welding: determining a reversible deformation device according to a welding seam form of a titanium alloy part, and carrying out assembly and spot welding; the assembled titanium alloy welding part is fixed to a reversible deformation device, and it is ensured that the part does not deform in the welding process; s2, a welding process; a thermocouple is placed on the surface of a weld joint, a local heating belt and heat preservation cotton are laid, and the heating belt, the thermocouple and local heating control equipment are connected for heat treatment; and S4, measurement of welding deformation is carried out. According to the method, a complete and easy-to-operate technological process is constructed by combining pre-welding anti-deformation tool fixing and post-welding local heating treatment technologies, and the problem of welding deformation with considerable numerical values and complex forms generated by multiple welding procedures of a large complex titanium alloy structure is solved.

The invention discloses a cast-in-place concrete beam construction method based on deformation control, and relates to the field of cast-in-place beam construction. S2, foundation treatment; s3, a support is erected and pre-pressed; s4, a formwork is installed; s5, steel bars and prestressed pipelines are installed; s6, concrete construction; and S7, removing the bracket. BIM modeling and an intelligent monitoring system are combined, the foundation treatment range is expanded, an automatic drainage system is arranged, edge settlement and rainwater soaking are effectively avoided, a support system is selected according to needs, anti-sidesway design is strengthened, stress is accurately simulated through graded automatic loading and pre-pressing, reliable deformation data are ensured through double monitoring, pre-camber calculation is scientific, errors are reduced, and the construction efficiency is improved. Formwork, reinforcing steel bars and prestressed pipelines are installed in a standard mode, the structural quality is guaranteed, concrete construction pays attention to temperature control and maintenance, crack reduction and support dismantling are symmetrically carried out in a grading mode, the springback amount is monitored in real time, and construction safety is guaranteed.

The invention discloses a spiral anchor foundation grouting pressure-flow-deformation intelligent coupling control method, and relates to the technical field of foundation grouting technologies, and the spiral anchor foundation grouting pressure-flow-deformation intelligent coupling control method comprises the steps that according to specification parameters of a spiral anchor and the type of a soil body where the spiral anchor is located, a preset engineering parameter set is matched; collecting grouting data of each grouting channel, and calculating grouting deviation data in combination with the engineering parameter set; performing fuzzification processing on the grouting deviation data, and converting the grouting deviation data into fuzzy linguistic variables; inputting the fuzzy language variable into a preset fuzzy rule base for reasoning, and outputting a PID parameter correction amount; parameters of a PID controller are dynamically adjusted according to the correction amount, and a pump speed adjusting instruction is generated; executing the pump speed adjusting instruction, and collecting grouting data after execution; a soil body permeability coefficient is obtained through inversion by constructing a digital twinborn model, and the fuzzy rule base is optimized and updated by combining the executed grouting data. The method is used for solving the problem that a traditional spiral anchor foundation grouting technology is poor in adaptability to complex geology.

The invention discloses a welding deformation prediction system based on simulation analysis, and relates to the technical field of welding deformation prediction.The welding deformation prediction system comprises the steps that a micro-area unit grid is constructed by obtaining a geometric model of a to-be-welded structure, material heterogeneous distribution and welding path information; based on the grid and material characteristics, establishing a local nonlinear thermal-mechanical coupling simulation model; inputting heat source parameters, calculating an instantaneous temperature field, and constructing a stress evolution function in combination with path change; further deducing initial strain distribution, and generating a local deformation estimation map; error inversion is executed by comparing with historical experimental data, heat source and material parameters are corrected, and a simulation model is updated; and finally, outputting a welding deformation prediction map, and identifying a deformation sensitive region in the microstructure. The method has the high-precision prediction capability and the self-adaptive correction characteristic, and is suitable for deformation control and process optimization of the micro-scale welding structure.

The invention relates to a complex soft rock double-layer primary supporting super-large section tunnel and a construction method. The complex soft rock double-layer primary supporting super-large section tunnel comprises a long pipe shed cover arch supporting system, a deformation control strong supporting structure, an anti-disengaging early-warning lining pouring trolley, a temporary inverted arch deformation control structure and a buffering yielding supporting system. The method has the beneficial effects that the curved surface formwork can be rapidly installed on the upper portion of the guide pipe and the lower portion of the steel arch frame, the installation efficiency is high, stability is good, and the construction period is shortened; a long pipe shed and a small guide pipe penetrate through the deformation control strong supporting structure and are driven into a tunnel, grouting is conducted, the overall stability of the supporting structure is enhanced, and the complex soft rock geology is reinforced; concrete pouring is monitored in real time, and the compactness of vault concrete is guaranteed; section steel is clamped in the inverted arch, reinforcing connecting ribs are welded between the section steel in a penetrating mode, surrounding rock collapse is prevented, and tunnel construction safety is guaranteed. And a buffer yielding support device is arranged between the interface and the double-layer arch frame, so that the pressure at the interface of the layered rock and soil stratum is in smooth transition, and the overall balance is improved.

The invention discloses a clamp control method for vehicle body welding and a related device. The method comprises the steps that a mechanical dependency graph is generated according to mechanical characteristic data; a temperature gradient distribution diagram is generated according to the temperature monitoring data, region division is carried out, and a state fusion diagram is generated; the clamp is divided into four groups, namely a structure supporting group, a position positioning group, a deformation control group and an auxiliary fixing group, and release conditions are determined; performing a pre-release test on the fixture meeting the condition, and calculating a release risk value according to the structural strain data; and a resource configuration table is generated for the released clamps, and a reconfiguration scheme is formulated. According to the technical scheme, the clamps can be accurately grouped and dynamically released based on the real-time state of the welding process, efficient configuration of clamp resources is achieved while the welding quality is guaranteed, and the problems of resource waste and excessive constraint caused by a traditional whole-process clamping mode are solved.

The invention relates to the technical field of bridge engineering, in particular to an in-service steel bridge U rib and top plate crack double-face welding repairing method and application thereof. The method comprises the steps that the position of a crack is determined, a bridge deck pavement layer above the crack is removed, and the surface of a bridge deck slab in a crack area is cleaned; flattening the bridge deck slab on the two sides of the crack, and fixing the flattened bridge deck slab; u-rib internal welding construction process holes are formed; u rib inner welding reinforcing welding and weld leg increasing welding are carried out in an inner corner area where the U rib with the cracks is connected with the top plate; sealing and repairing the construction process hole; carrying out carbon arc air gouging on the crack above the bridge deck slab, and forming a gouging groove in the bridge deck slab; and polishing and multi-layer and multi-pass welding are carried out on the planed groove. The method is fused with an internal welding technology, is a comprehensive repair scheme with root treatment, double reinforcement, controllable deformation and reliable quality, thoroughly overcomes the technical defects of treatment of symptoms, no treatment of root causes, easy secondary damage, poor reliability and the like in the prior art, and remarkably prolongs the service life and the safety performance of the in-service steel bridge.

The invention relates to the technical field of pipe truss tubular joint welding quality control, in particular to an assembly type pipe truss tubular joint butt-joint tensioning anti-deformation welding method and system which comprises the following steps that S1, an intersecting line is divided in the circumferential direction, and butt-joint references and deformation monitoring point positions of all partitions are calibrated; s2, circumferential distributed tensioning force application point positions are set; s3, a differential pre-tightening force gradient in the circumferential direction of the intersecting line is set, and pre-tensioning force is applied; s4, synchronous cooperation of tensioning actions and deformation control of all the to-be-welded nodes is carried out; s5, welding is conducted in a partitioned and segmented mode, and the pre-tensioning force of the partition corresponding to the intersecting line is dynamically adjusted in the welding process; and S6, after welding, the pre-tensioning force of each subarea is released, and node deformation checking and precision correction are synchronously completed after force release. According to the dynamic pre-tightening force adjusting method for partition differentiation pre-tightening force gradient distribution and welding thermal cycle time sequence matching, the residual stress peak value of the node core area is greatly reduced, and the welding quality and the structural safety of the tubular node are remarkably improved.

The invention discloses a frozen soil area shallow-buried self-anchored pile foundation freezing and pulling prevention and control device and a construction method, the frozen soil area shallow-buried self-anchored pile foundation freezing and pulling prevention and control device comprises an anchoring cylinder, a sleeve, a pile foundation and a base, the pile foundation and the base are installed in the anchoring cylinder, the pile foundation is installed at the top of the base, and the anchoring cylinder is sleeved with the sleeve; through the arrangement of the upper block, the lower block, the upper open groove and the lower open groove of the anchoring barrel, the effect of changing the cross section in real time according to frost heaving development is provided for the anchoring barrel. Meanwhile, the stress condition of the pile foundation in the frost heaving period is optimized through the synergistic effect of the clamping blocks and the supports, when the upper block inclines inwards and deforms in the frost heaving period, the supports are extruded to contract towards the pile foundation, the gaps between the clamping blocks and the supports are gradually reduced till the clamping blocks make contact with the supports, the clamping blocks press the supports downwards, the supports apply downward force to the pile foundation, and the pile foundation is prevented from being pulled upwards. In addition, the stability and the anti-freezing and anti-pulling capacity of the pile foundation are enhanced through the base, and the shallow-buried pile foundation is promoted to meet the strict deformation control requirement.

The invention relates to a foundation pit deformation control method and system based on dynamic load compensation, and belongs to the technical field of foundation pit supporting and computers. The foundation pit deformation control method based on dynamic load compensation comprises the steps that S1, a hydraulic supporting unit is arranged on the inner side of a foundation pit supporting pile or an underground diaphragm wall, the pressure of the hydraulic supporting unit and the displacement amount of the supporting pile or the underground diaphragm wall are monitored in real time, and the supporting force needing to be provided by the hydraulic supporting unit is calculated; s2, foundation pit soil strain data are monitored in real time, vehicle position, speed and load data are obtained, and a dynamic load distribution model is constructed; and S3, constructing a foundation pit deformation prediction model by using an LSTM neural network, and predicting the influence trend of vehicle passing on foundation pit deformation so as to adjust the supporting force of the supporting structure in advance and automatically optimize the vehicle path at the same time. According to the method, deformation is actively controlled through a dynamic compensation mechanism, construction safety and stability of surrounding facilities are guaranteed, and the method is particularly suitable for sensitive areas adjacent to underground facilities or important buildings.

The invention relates to an anti-falling device integration method and system based on light guide rail coupling and deformation control, and the method comprises the following steps: carrying out the stress distribution scanning of a light guide rail through a laser interference measurement system, and obtaining a guide rail stress distribution map; based on the guide rail stress distribution map, carrying out dynamic rigidity analysis on the light guide rail to obtain a guide rail rigidity characteristic curve; carrying out coupling calculation on the light guide rail based on the guide rail rigidity characteristic curve to obtain guide rail coupling parameters; based on the guide rail coupling parameters, structural design and layout optimization are conducted on the anti-falling device, and an anti-falling device integration scheme is obtained; and performing virtual assembly and performance simulation on the integration scheme of the anti-falling device to obtain a performance evaluation report of the anti-falling system, thereby solving the technical problem that the integrated design of the anti-falling system generally lacks in-depth analysis on the mechanical characteristics of the guide rail body, so that potential safety hazards are difficult to find and correct in time.

The invention discloses a curing deformation control method for a composite material stiffened wallboard. The curing deformation control method is characterized by comprising the following steps: arranging at least two ribs on a to-be-stiffened surface of the stiffened wallboard; wherein geometric structure parameters of at least one rib are different from those of the other ribs, and bending deformation torque opposite to the other ribs in direction is generated, so that curing deformation and residual stress of the stiffened wallboard meet design requirements. According to the method, curing deformation is controlled on the premise that the pneumatic performance, the bearing performance and the like of the stiffened wall plate are not affected, and a preferable technical approach is provided for accurate manufacturing of the composite material stiffened wall plate.

The invention relates to the technical field of injection molding control, in particular to a bumper foam molding deformation control method based on artificial intelligence, which comprises the following steps: judging whether initial injection pressure exceeds a normal range required for inhibiting foaming, and adopting subsection control or predicting whether the fluidity of a foaming melt has an out-of-control risk; according to the out-of-control risk value, a corresponding adjusting strategy is adopted in combination with the weight coefficients corresponding to the multiple sprues, and the injection molding adjusting speed is obtained or the initial mold temperature is reduced; according to the injection molding speed and the weight coefficient of the multiple sprues, calculating and predicting whether the tail end of the cavity is subjected to material shortage and uneven foaming, and reflecting whether the adjustment degree of the initial injection molding speed and the mold temperature is reasonable or not through the material shortage risk; and determining the foaming degree of the foaming melt in the inspection mold according to the material shortage risk, or reducing the adjustment amplitude of the initial injection molding speed or the initial mold temperature and adjusting the actual cavity pressure in the mold to compensate the adjustment amplitude. The performance of the bumper is improved through the foaming forming technology.

The invention belongs to the technical field related to robot motion control, and discloses a reaction type robot motion deadlock avoiding method and device, and the method comprises the steps: (1) building a collision avoidance constraint used for guaranteeing that a robot does not collide with an environment object based on a control barrier function; a deformable control Lyapunov function is utilized to construct a convergence constraint for ensuring the robot to move to a target; (2) establishing a robot collision avoidance motion optimization model by taking minimum deviation between the robot and model control input as an objective function based on collision avoidance constraint, convergence constraint conditions and a robot dynamic model; and (3) detecting the motion deadlock risk of the robot in real time based on the robot collision avoidance motion optimization model, and regulating and controlling the shape parameters of the deformable control Lyapunov function based on the obtained deadlock type so as to avoid the motion deadlock of the robot. According to the method, deadlock is avoided by regulating and controlling the deformable control Lyapunov function, the method can depend on a prior environment model or a fixed rule, and generalization is high.

The invention relates to a welding manufacturing method for a steel tower shell of a steel shell concrete combined tower. The steel tower shell is composed of an inner wall plate, an outer wall plate, stiffening ribs, connecting angle steel and reinforcing steel bars. The wallboard units are welded by adopting different welding methods and deformation control methods; the steel tower shell block bodies are assembled by adopting a long-line method, the curve sections are made into profiling tires, and the steel tower shell section block bodies are assembled by adopting a horizontal assembling method; the sections of the steel tower shell are assembled through a three-dimensional assembling method, and the boundary dimensions of the sections are effectively controlled through a special inner mold jig frame and a supporting system. The sections of the steel tower are adjusted through the guide blocks and the temporary matching pieces, and the matching degree between the sections is improved; the assembling size, the line shape and the like are strictly controlled by comparing the assembling result with a computer simulation assembling result in the assembling process; according to the method, the welding deformation and the size precision of the wall plate units can be effectively controlled, the matching problem between blocks and sections of the steel tower shell can be effectively controlled, the technical problem in welding manufacturing of the steel tower shell can be solved, and the product size precision and the welding seam quality are improved.

The invention discloses a deformation control device for forklift portal frame structure welding, and relates to the technical field of welding deformation control, the deformation control device comprises a turnover machine, a turnover frame, a moving frame arranged on the turnover frame and a moving mechanism for driving the moving frame to move transversely, and the moving frame is provided with a monitoring module comprising a visual monitor and an infrared thermometer; a plurality of correcting assemblies are arranged at the top end of the overturning frame, each correcting assembly comprises a fixed frame, a sliding frame and an extrusion roller, and the movable frame is provided with an upper electric telescopic cylinder capable of driving a triangular inserting plate to extrude a round rod so as to drive the extrusion rollers to abut against the portal; the fixing frame is provided with a clamping assembly, a linkage plate is driven through a lower electric telescopic cylinder, and a bottom plate and a clamping plate are driven to rigidly fix the portal. The position of the fixing frame can be adjusted through bolts and the limiting grooves. The device can monitor welding deformation in real time and dynamically correct the welding deformation, is adaptive to portals of multiple specifications, improves the welding precision and efficiency, guarantees the quality of the portals, and reduces the labor dependence and the equipment cost.

The invention relates to the technical field of civil engineering automation control, and discloses a deep foundation pit engineering multi-parameter cooperative deformation control system which comprises a state quantization module, a dynamic evolution prediction module, a potential field generation module and a cooperative control module. The state quantization module maps the real-time monitoring data into a quantization state vector representing the overall safety state of the project. And the dynamic evolution prediction module deduces the quantization state vector through an evolution operator based on a system Hamiltonian operator, and predicts a future state. The system further comprises a model self-adaptive correction module, and the Hamiltonian operator of the system is updated by comparing the deviation between the prediction state and the real state. According to the method, the engineering state is quantized, the evolution operator is used for dynamic prediction, the potential field gradient is combined for decentration cooperative control, and accurate, self-adaptive and cooperative closed-loop control over deep foundation pit deformation is achieved.

The invention discloses a jig frame structure and method for movable deck welding deformation control. The jig frame structure is characterized in that a transverse supporting truss comprises a plurality of transverse T-shaped beams distributed at intervals; the longitudinal supporting truss comprises a plurality of longitudinal T-shaped beams which are distributed at intervals, each longitudinal T-shaped beam is perpendicular to the transverse T-shaped beams, and each longitudinal T-shaped beam is fixedly connected with the transverse T-shaped beams; two adjacent longitudinal T-beams and two adjacent longitudinal T-beams define a rectangular unit, a reinforcing plate is arranged in each rectangular unit, the reinforcing plates are parallel to the longitudinal T-beams or the transverse T-beams, and when the reinforcing plates are parallel to the longitudinal T-beams, the reinforcing plates are fixedly connected with the transverse T-beams; when the reinforcing plates are parallel to the transverse T-beams, the reinforcing plates are fixedly connected with the longitudinal T-beams. According to the jig frame structure, the internal stress of the movable deck can be effectively reduced, the camber of the transverse T-shaped beam and the longitudinal T-shaped beam is pre-increased in advance, a large amount of hot work correction work after completion is reduced, and the jig frame structure belongs to the technical field of ship accessory outfitting equipment manufacturing.

The invention relates to the field of slope prevention and control of water conservancy and hydropower engineering, in particular to a method for treating abnormal deformation of an upper-hard and lower-soft extra-high steep transverse slope during a construction period, which comprises the following steps of: constructing a three-dimensional geologic model based on multi-source data, and calibrating mechanical parameters of a rock mass and a structural surface in a manner of combining inversion analysis and field monitoring data; the synergistic effect of different supporting measures is quantified through numerical simulation, and a system treatment scheme is formed. Specific treatment is carried out according to the special failure mechanism of the composite structure with the hard upper portion and the soft lower portion, the progressive extrusion deformation characteristics of the lower soft rock are accurately recognized, the treatment strategy of deep anchoring, soft rock reinforcement and form regulation and control is adopted, anchor cables are adopted for deep reinforcement, consolidation grouting is applied for improving the mechanical property of the soft rock, and form control measures of slope ratio optimization are matched, so that the composite structure is obtained. And a multi-dimensional deformation suppression system is formed. The technical problems that in the existing abnormal deformation treatment process, supporting measures are not appropriate, a supporting scheme is lack of systematicness, and the treatment effect is poor can be solved.

The invention relates to a welding deformation control clamp and method for a supporting plate assembly of an inclined supporting plate frame, and belongs to the technical field of welding. The outer ring positioning spigot is processed on the upper surface of the mounting bottom plate and is used for radially positioning a frame outer ring of the inclined support plate frame support plate assembly; the frame outer ring has a rotational degree of freedom at the outer ring positioning seam allowance; the inner ring positioning spigot is processed on the upper surface of the mounting bottom plate and is used for radially positioning a frame inner ring of the inclined support plate frame support plate assembly; the frame inner ring has a rotational degree of freedom in the inner ring positioning seam allowance; and the supporting pipe positioning assembly is mounted on the upper surface of the mounting bottom plate and penetrates through a supporting pipe of the inclined supporting plate frame supporting plate assembly to rigidly limit angular movement of the inclined supporting plate frame supporting plate assembly. According to the welding tool scheme based on the axial, radial and rotational freedom degrees of the rigid limiting frame inner ring and the frame outer ring, the assembly efficiency and the welding quality are improved.

The invention discloses a permafrost roadbed structure design method based on railway long-term deformation control, which comprises the following steps of: carrying out comprehensive investigation and physical and mechanical property analysis on frozen soil through geological plotting, geological drilling and comprehensive geophysical prospecting; according to investigation and analysis results, determining layered distribution characteristics of the permafrost of the foundation; according to the layered distribution characteristics of the permafrost of the foundation, parameters of a roadbed structure are set; calculating and analyzing the cooling capacity demand of the permafrost roadbed; setting a railroad bed deformation control standard; and according to the cooling capacity requirement and the railway roadbed deformation control standard, combining the parameters of the roadbed structure, and designing to obtain the hot rod roadbed structure. The scientific and intelligent permafrost hot rod roadbed design method can be realized, long-term deformation control and dynamic adaptability guarantee is provided for railway engineering in cold regions, the operation and maintenance cost is reduced, and the service life of the roadbed is prolonged.

The invention discloses a soil body excavation and ballasting method based on numerical simulation optimization, and relates to the technical field of excavation construction. The soil excavation and ballasting method based on numerical simulation optimization comprises the method steps of foundation pit zoning, excavation scheme determining, field monitoring scheme determining, field excavation construction, dynamic monitoring and real-time adjusting and underground structure construction, zoning is conducted in the horizontal direction, zoning is also conducted in the vertical direction, and the underground structure is constructed. And interval excavation is conducted by adopting a method that multiple interval areas are propelled at the same time. And in the excavation construction process, according to the real-time numerical simulation result, the excavation scheme is dynamically adjusted, and the excavation construction efficiency is improved to the maximum extent. And in the aspect of deformation control, according to a field deformation monitoring result, a pre-arranged plan of adding ballast to an area with large deformation is added, and the deformation control effect in the excavation process is ensured. The method has good deformation control over the excavation process, the safety of the underlying operation subway tunnel is enhanced, and the construction efficiency is improved.

The invention discloses a super-large broken line glass curtain wall installation method which comprises the following steps: based on curtain wall design parameters, obtaining deformation trends of a curtain wall in different installation stages, and based on the deformation trends, respectively determining deformation control thresholds of a straight line section component and a broken line node component of the curtain wall; adjustable hydraulic supporting tools are arranged in the installation area of the linear segment component and the installation area of the broken line node component respectively, and the adjustable hydraulic supporting tools are used for supporting glass plates of the linear segment component and the broken line node component; and staged installation is carried out according to the time sequence that the linear segment components are installed firstly and then the broken line node components are installed. Deformation trends of different installation stages are obtained in advance based on curtain wall design parameters, differentiated deformation control threshold values are set for the straight line section component and the broken line node component, and refined control over the rigidity sudden change area at the broken line node is achieved; the adjustable hydraulic supporting tool is arranged, and the supporting force is dynamically adjusted through the hydraulic rod.

The invention discloses a multifunctional multi-anchor plate pile wharf structure suitable for deepwater berth and a construction method thereof, belongs to the technical field of port engineering, and solves the problems that the section of a deepwater berth plate pile wall structure is too large, deformation control is difficult, and the synergism of an anchorage system is poor. The wharf structure comprises a front sheet pile of the front sheet pile wall structure and a front track beam arranged on the front sheet pile. The pull rod system is arranged between a pavement structure and a pool bottom elevation, at least two common layered pull rods and a multifunctional pull rod are sequentially arranged at intervals from bottom to top, one end of each common layered pull rod is connected to a front sheet pile, and one end of each multifunctional pull rod is connected to a front track beam. The anchorage system comprises at least two common layered anchorage bodies and a multifunctional anchorage body, the common layered anchorage bodies are correspondingly connected with the common layered pull rods, the multifunctional anchorage body is composed of a rear track beam and a rear track beam pile, and the rear track beam is connected with the other end of the multifunctional pull rod. The wharf structure is mainly used for deepwater berth wharf construction, multi-anchor support can be provided, and track beam displacement can be coordinated.

The invention provides a metal powder bed additive manufacturing macrostructure residual deformation control method and system, and the method comprises the steps: 1, obtaining material equivalent inherent strain under different forming process parameters through a metal powder bed melting forming microscale numerical model, establishing a mapping relation between the forming process parameters and the equivalent inherent strain of the material through an approximate model technology; 2, the structure is partitioned, a numerical model is manufactured through a macro-scale metal powder bed additive, macro-structure residual deformation corresponding to regional inherent strain is obtained, an approximate model of partitioned material inherent strain and the maximum residual deformation of the structure is constructed, and the maximum residual deformation of the structure is obtained by combining the mapping relation between forming process parameters and the material inherent strain; the integral structure residual deformation prediction under the multi-partition process parameters is realized; and step 3, carrying out a forming process optimization design of residual deformation minimization to realize the residual deformation control of the macrostructure.

The invention belongs to the technical field of aviation aircraft sheet metal machining, and relates to a method for controlling heat treatment quenching deformation of a thick-wall T profile part. The device is matched with a specific device to improve the current situation of large quenching distortion deformation of the thick-wall T-shaped profile, so that the quenching deformation of the thick-wall T-shaped profile in heat treatment is extremely small, an operator does not need to manually trim the quenching deformation thoroughly even if slight buckling deformation exists, a stamping bending die is directly used on machine tool equipment for stamping correction, cracks caused by a large number of manual knocking repair are avoided, and the production efficiency is improved. The T-shaped section bar is simple in structure and convenient to manufacture, batch production and manufacturing can be achieved, the precision requirement that the tire attaching degree of an airplane stringer and an inspection tool is not larger than 0.5 mm is met, the time for manufacturing a thick-wall T-shaped section bar is shortened to 20 minutes from 5 hours, and the part rejection rate is reduced to 0 from 35%.