240results about How to "Avoid instability" patented technology

The present application relates to a kind of rocket engine injector thin-wall milling self-positioning fixture and assembly method, it mainly includes upper positioning tire body component, conical surface expansion ring, tire unloading bottom plate, pressing cover plate, tire unloading lifting ring, pressing bolt, expansion screw, lower positioning bottom plate component, locking bolt, long fixed bolt, lower positioning bottom plate component is fixed in machine tool workbench by locking bolt long-term, always not disassembled.Product is positioned and clamped and supported by conical surface expansion ring, tire unloading bottom plate, pressing cover plate, pressing bolt, expansion screw before milling injector thin-wall and positioning tire body component, limit the radial and axial movement of injector thin-wall;Injector thin-wall is positioned and clamped and supported by conical surface expansion ring, tire unloading bottom plate, pressing cover plate, pressing bolt, expansion screw before milling injector thin-wall and positioning tire body component, limit the radial and axial movement of injector thin-wall;Injector thin-wall is positioned and clamped and supported by conical surface expansion ring, tire unloading bottom plate, pressing cover plate, pressing bolt, expansion sleeve before milling injector thin-wall and positioning tire body component, limit the radial and axial movement of injector thinn

The invention relates to a robot standing posture recovery method and device, equipment, a storage medium and a product, and the method comprises the following steps: after the falling state of a robot is detected, collecting joint angles in real time to obtain falling posture data, and calculating contact points with the ground to determine a support part set; in combination with a preset zero moment point reference trajectory, performing inverse dynamics solution based on the set to generate a joint motion sequence, and configuring the joint motion sequence as joint position instructions to form a getting-up planning trajectory; the current output torque of each joint is compensated in real time according to the track, a driving torque instruction is obtained, each joint motor is driven to execute actions, so that the robot is recovered from the current posture to the standing posture, and the problem that the preset rigid action is often not matched with the current actual supporting state when the robot falls to the ground, and consequently the robot cannot stand up when executing the getting-up action is solved. And center-of-gravity unbalance is easy to occur.

The invention belongs to the technical field of sputter deposition, and provides an automatic temperature control system and method for a sputter deposition device, and the system realizes the accurate control of the cavity temperature in the sputter deposition process by integrating components such as a vacuum gauge, a gas cylinder, a valve, a thermocouple temperature measurement element and a PID (Proportion Integration Differentiation) regulator. The system monitors the temperature of the cavity in real time by using the thermocouple, and automatically adjusts the power of the heating wire through the PID regulator according to the comparison result of a set value and an actual value, thereby maintaining the stability of the temperature of the cavity. In addition, the system has the function of communicating with an upper computer, remote monitoring and control can be carried out through a software layer, and the automation level and the temperature control precision of the sputtering deposition process are improved. The problems that in the prior art, temperature control precision is low, the automation degree is insufficient, and stability is poor are solved, through linkage control over the temperature, the vacuum degree and the gas flow, the consistency of film performance is guaranteed, and the method is suitable for large-scale production of high-precision films.

This invention proposes an energy storage-assisted unlocking structure, a socket and connector assembly, and an unlocking method. The energy storage-assisted unlocking structure includes: a locking sleeve; an energy storage push rod slidably inserted within the locking sleeve, with an annular groove on its inner circumferential surface; an energy storage spring abutting against the end of the energy storage push rod, which maintains compressed energy storage during locking and releases to drive the energy storage push rod axially during unlocking; a locking steel ball disposed between the energy storage push rod cavity and the energy storage locking rod, which can move radially; and an energy storage locking rod slidably inserted within the energy storage push rod cavity, which, during locking, forces the locking steel ball into the annular groove for radial limiting and allows the locking steel ball to disengage from the annular groove during unlocking. This invention, through the energy storage push rod and energy storage spring, pre-compresses the energy storage spring to store elastic potential energy during locking and releases this potential energy during unlocking to drive the energy storage push rod to impact the target locking rod, transforming traditional static pull-out unlocking into dynamic impact unlocking. Under overload conditions, only a small operating force is required to complete unlocking, effectively solving the problem of excessive unlocking force or even jamming in existing structures under overload, and significantly improving unlocking reliability.

The utility model discloses a water circulation system of a chlorinated polyethylene device, and belongs to the technical field of fine chemical engineering. The system comprises a hot water pool and a cold water pool, the output end of the cold water pool is respectively connected with a jacket of a chlorination kettle, a jacket of a material waiting kettle, a drying system and a belt filter, the output end of heating steam is connected with the jacket of the chlorination kettle and the drying system, and the jacket of the chlorination kettle and the output end of the drying system are connected with the hot water pool. According to the utility model, the water resource at the jacket outlet of the chlorination reaction kettle is fully utilized.

The invention belongs to the technical field of data transmission, and provides a method and device for dynamically adjusting a communication rate, electronic equipment and a storage medium, and the method comprises the steps: transmitting a test command to a slave device through a master control device according to first configuration information; according to feedback information of the slave device, the communication rate is tested through the master control device according to second configuration information, the second configuration information is gradually adjusted until the communication rate reaches a target value, and the target value is the maximum rate which can be supported by the communication line and the slave device; according to the method, the communication rate is dynamically adjusted, so that a double-wire communication protocol can be dynamically located at the fastest communication rate, unstable data communication caused by environment change and line length change is avoided, and the data transmission efficiency is improved; and meanwhile, the master control device communicates with the plurality of slave devices according to the corresponding maximum communication rate, so that differentiated communication is realized.

This invention relates to a decoupled drag-increasing derailment device. It includes a drag-increasing cylinder, a sleeve-type extension rod, side drag-increasing films, upper and lower planar deployment devices, and a drag-increasing launch assembly. The sleeve-type extension rod includes a central limiting rod, multiple sleeves sequentially sleeved around the limiting rod, and multiple sleeves that expand pneumatically under the action of a gas-generating propellant. The upper end of the sleeve-type extension rod is connected to the upper planar deployment device, and the lower end of the sleeve-type extension rod is connected to the lower planar deployment device. The side drag-increasing films consist of four rectangular films that expand into an X-shape, with a notch on the outer side of each rectangular film. Both the upper and lower planar deployment devices include a planar film that expands into a square shape, composed of four triangular films, with the expanded side drag-increasing films also forming an X-shape. This invention addresses the coupling problem during the expansion of the upper and lower planar deployment devices by setting notches and optimizing the configuration of the side drag-increasing films, thereby improving the reliability of the drag-increasing derailment device.

The utility model relates to bridge engineering technical field especially a kind of deck structure of suspension chain plate arch bridge and pedestrian suspension chain plate arch bridge, including multiple bridge deck panels and multiple cables, multiple cables are mutually parallel between the, the both ends of cable are anchored on the mountain on both sides respectively, cable body is taut to exert pretension;Multiple bridge deck panels are fixed above cable along cable, multiple bridge deck panels are connected to form an integral whole, single bridge deck panel is fixedly connected with multiple cables simultaneously.Multiple bridge deck panels are erected on cable, to avoid the instability of suspension chain plate arch bridge caused by setting suspension structure;Cable body is taut and exerts pretension and multiple bridge deck panels are connected to form an integral whole, improve the overall rigidity of deck, further improve the ability of suspension chain plate arch bridge to resist lateral load, improve stability, effectively reduce safety risk.

The utility model relates to the technical field of ship pipe supports, in particular to a ship pipe support convenient to assemble, which comprises a base, an assembling mechanism and a buffer mechanism are arranged on the base, the assembling mechanism comprises a support plate, the support plate is arranged above the base, an adjusting disc is rotatably arranged on the support plate through a rotating component, and the adjusting disc is arranged on the base. A support assembly is arranged on the adjusting disc, the rotating assembly comprises a circular groove, a rotating column is rotationally arranged in the circular groove, the upper end of the rotating column in the circular groove is fixedly connected with the adjusting disc, and the bottom end of the adjusting disc is rotationally connected with the supporting plate through a rotating shaft. According to the ship pipe support, the assembling direction can be adjusted when a ship pipe is assembled, assembling adjustment is conducted in the horizontal direction, assembling is convenient, and practicability and convenience of the device are improved.

The utility model discloses an anastomat cutting knife detection device which comprises a vertical driving assembly, a transverse driving assembly, a cutting knife testing assembly and a suture line clamp, the cutting knife testing assembly comprises a pressure sensor and a connector unit used for installing an anastomat cutting knife, and the connector unit is assembled at the lifting end of the vertical driving assembly. The suture line clamp comprises a balancing weight, a plurality of threading columns for a suture line to penetrate through and a pressing driver for pressing the suture line, and the transverse driving assembly drives the suture line clamp to move, so that one threading column corresponds to the connector unit; the vertical driving assembly drives the anastomat cutting knife on the connector unit to cut the suture line on the suture line clamp, and the cutting force borne by the anastomat cutting knife is measured through the pressure sensor, so that a manual detection mode can be replaced, and the sharpness performance of the anastomat cutting knife can be accurately, conveniently and reliably detected.

The invention discloses an intelligent control method and system for the running state of an energy-saving water pump motor, relates to the technical field of water pump motor control, and aims to solve the problem that preset parameters of a control system are mismatched with actual working conditions due to changes of internal and external physical conditions of the system in modern industrial and municipal water supply systems. The method comprises the steps that pressure response data of a water pump in the operation process are obtained, at least one operation performance index is determined according to the pressure response data, and whether current closed-loop adjustment parameters of a water pump control system are mismatched with the actual hydraulic working condition of the water pump or not is judged according to the at least one operation performance index and a preset ideal operation performance range; when it is judged that mismatch exists, according to a preset parameter adjusting rule, gradual fine adjustment is conducted on the closed-loop adjusting parameters, and the parameter adjusting rule covers the adjusting direction and the adjusting amplitude corresponding to the closed-loop adjusting parameters when different operation performance indexes deviate from the ideal operation performance range.

The present application relates to the technical field of fuel cell, in particular to a hydrogen battery water-gas separation device for unmanned aerial vehicle, which comprises a separation shell, a cyclone separation cavity, a heat exchange condensation cavity and a hydrogen mixing cavity are sequentially arranged from bottom to top in the separation shell, a multi-stage separation and heat exchange combined structure is adopted, the technical problem that the traditional gas-liquid separator cannot completely remove the micron-sized droplets is solved, the efficient removal of liquid water droplets is realized through the cyclone separation cavity, the heat exchange between the new hydrogen and the wet hydrogen is carried out through the heat exchange condensation cavity, the residual droplets are fully condensed and precipitated, the mixed hydrogen gas with the required dryness is finally output, and the problem of fuel cell anode flooding is effectively avoided.

This utility model relates to the field of wall connection technology and discloses an efficient connection device between a BRB (Brick Reinforced Bench) and a secondary structure wall. It includes a channel steel 2C10 and an upper wall of the BRB. A steel frame beam is fixedly connected to the top of the channel steel 2C10, and an embedded part is fixedly connected to the bottom of the channel steel 2C10. A first connecting ear plate is provided on the outer side of the channel steel 2C10, and a tie bar is fixedly connected to the outer side of the first connecting ear plate. Polyurethane foam is provided at the bottom of the upper wall of the BRB. In this utility model, the double-layered channel steel and the tie bar on the connecting ear plate can disperse localized concentrated loads in the wall, effectively transferring these loads to the main structure, reducing stress concentration in the wall. Under seismic action, the tie bar forms an energy dissipation mechanism, helping to dissipate seismic energy and reducing damage to the building wall. The tie bar can also restrain the development of temperature shrinkage cracks, ensuring the durability and safety of the wall, and has significant market and social value.

This utility model discloses a novel integrated fishing box, relating to the field of fishing tackle technology. It includes a one-piece molded box body and a lid hinged to the top of the box body. The top surface of the box body has a recessed receiving cavity, and the two outer side walls of the box body have integrally molded protruding mounting portions. Each mounting portion has a handle, and an elastic buckle is provided between the handle and the mounting portion. The bottom of the box body has a mounting block, and the top surface of the mounting block has an internally hollow adjusting shell. A locking seat is fitted inside the mounting block, and the locking seat has a movable through groove in its center. A support member that can enter the adjusting shell or extend from the locking seat is provided within the movable through groove. The side of the locking seat facing away from the box body has a recessed locking groove communicating with the movable through groove. The locking groove contains a locking switch, a first pivot, and a first torsion spring. The locking switch has a locking portion at the bottom and an anti-detachment portion at the top. The side walls of the box body have openings. This utility model uses a one-piece molded box body, enhancing the durability and stability of the overall structure of the fishing box.

The invention discloses a sleep state closed-loop deep brain stimulation method and system based on a multi-modal signal, and the method comprises the steps: preprocessing an obtained electroencephalogram signal and an electromyographic signal, extracting multi-dimensional candidate features, and obtaining a core feature vector through screening; constructing a sleep state prediction model, inputting the core feature vector into the sleep state prediction model, and outputting a probability result of sleep state classification and a corresponding reliability index; executing multi-level physiological safety verification to obtain a target state, and allowing to output a state switching instruction when and only when the multi-level physiological safety verification is passed and the target state meets a preset stable condition; and continuously outputting a corresponding stimulation parameter set to the deep brain stimulation electrode based on a final target state corresponding to the state switching instruction. The problems that in the prior art, in the closed-loop regulation and control process, the sleep state recognition result is excessively relied on, and physiological safety constraint and stimulation continuity control are lacked are solved.

This application discloses a grid-connected inverter control method based on a notch filter phase-locked loop (PLL) for weak grid conditions. The method first designs a notch filter with adjustable notch depth and bandwidth, setting its notch frequency to the grid power frequency. It then acquires the three-phase voltage at the grid connection point, subtracts the voltage after notching, and extracts the power frequency component of the three-phase voltage. The power frequency component is phase-locked in a synchronous reference frame to obtain the modulation wave phase signal. The inverter output voltage and current are acquired, and active and reactive power are calculated. A dual closed-loop control circuit with an outer power loop and an inner current loop is constructed, outputting the modulation wave voltage amplitude signal. Finally, the modulation wave phase signal and amplitude signal are combined to generate a pulse modulation wave signal. Thus, this invention can accurately lock the grid phase when the weak grid voltage contains harmonics and DC components, effectively improving the stable grid-connected operation capability of the grid-connected inverter under large disturbances.

The invention discloses a crown block track surface cleaning device in a semiconductor workshop, which comprises a bottom plate, a frame is arranged on the bottom plate, and a first negative pressure fan and a second negative pressure fan are arranged in the frame; a negative-pressure air draft longitudinal cylinder extending upwards is arranged in the frame, and the bottom end of the negative-pressure air draft longitudinal cylinder is connected with a first negative-pressure fan and a second negative-pressure fan through pipelines in a communicating mode. A negative pressure air draft transverse barrel is arranged at the top end of the negative pressure air draft longitudinal barrel, the negative pressure air draft transverse barrel is vertically arranged at the top end of the negative pressure air draft longitudinal barrel, and the negative pressure air draft transverse barrel is communicated and connected with the negative pressure air draft longitudinal barrel; the two ends of the negative-pressure air draft transverse barrel are provided with dust removal modules which protrude downwards and are matched and symmetrical, and each dust removal module comprises a dust removal head cavity. Through non-contact suspended positive and negative air passage cleaning, efficient and automatic cleaning of the crown block rail surface of the semiconductor workshop is achieved, and the cleanliness of the semiconductor production environment is effectively improved.

This invention relates to a modified asphalt and its preparation method, comprising: (1) mixing styrene tar with a pretreatment solvent, allowing it to stand and separate into upper and lower liquid layers; (2) removing the pretreatment solvent from the upper and lower liquid layers respectively to obtain liquid phase Y1 and liquid phase Y2; (3) mixing waste rubber powder with liquid phase Y1 and reacting them, followed by solid-liquid separation to obtain solid phase G1, while simultaneously recovering the separated liquid phase Y3; (4) mixing solid phase G1 with liquid phase Y2 to obtain mixture G2; and (5) adding mixture G2 to the base asphalt to obtain modified asphalt. This invention pretreatment of hazardous waste styrene tar before its use as an additive improves the mixing effect of waste rubber powder and base asphalt, ensures product quality, realizes the resource utilization of styrene tar, and reduces production costs.

The present application relates to offshore wind farm wind turbine inspection technology field, more specifically, a kind of automatic inspection system suitable for offshore wind farm, set in the wind turbine equipped with data acquisition and monitoring control system inside or outside, the automatic inspection system includes at least one subsystem, the subsystem includes unmanned aerial vehicle, charging bin, the charging bin is built into the wind turbine or externally hung on wind turbine, the charging bin is connected with the data acquisition and monitoring control system, the unmanned aerial vehicle can be built into charging bin and electrically connected with charging bin, and the charging mode is contact charging.The automatic inspection system suitable for offshore wind farm provided by the present application does not need to be carried by operation and maintenance ship, which can realize unmanned aerial vehicle automatic patrol on offshore wind farm, and ensure the safe take-off and operation of unmanned aerial vehicle.

The invention discloses a control method for switching sitting and standing postures of a wheel-foot robot. The control method comprises the following steps of S1, initial modeling, S2, strategy network and value network setting, S3, strategy network optimization and S4, deployment implementation. The invention provides the control method for switching the sitting posture and the standing posture of the wheel-foot robot, and the control method gives consideration to stability, smoothness and generalization ability.

The utility model relates to the technical field of assembling device, disclose a kind of wire harness terminal connection assembling device, including base, the inside fixed connection of base has clamping mechanism, the clamping mechanism includes disc seat, the outside sliding connection of disc seat has carousel, the inside sliding slot of carousel is slidably connected with slide bar, the outside fixed connection of slide bar has rectangular plate, the outside fixed connection of rectangular plate has ring clamping plate, the inside fixed connection of base has drive assembly, the outside fixed connection of carousel has connecting block. In the utility model, connecting block is pushed by electric push rod, carousel is rotated, carousel drives rectangular plate and ring clamping plate radial movement by slide bar, realize the clamping and loosening of wire harness, effectively prevent wire harness sliding during assembling process, ensure the stability of assembling process, improve the quality and efficiency of wire harness terminal connection assembly.

This utility model discloses a mixing agitator for a hydrogenation reactor, comprising a reactor body, multiple legs fixedly connected to the outer wall of the bottom of the reactor body, a top cover rotatably connected to the top of the reactor body, a feed pipe fixedly connected to the top of the top cover, a feed cover plate rotatably connected to the top of the feed pipe, a discharge pipe fixedly connected to the bottom of the reactor body, a discharge valve fixedly connected to the outer wall of the discharge pipe, a stirring mechanism installed on the inner wall of the reactor body, an aeration treatment mechanism installed on the top of the reactor body, and a foam elimination mechanism installed inside the reactor body. The air pump of this utility model's aeration treatment mechanism introduces hydrogen gas into the rotating shaft through the air inlet pipe, and sprays it out from the aeration pipe through the air guide hose. This, combined with the motor driving the rotating shaft and stirring rod of the stirring mechanism, causes the hydrogen gas to disperse into tiny bubbles. Simultaneously, a scraper removes material from the reactor wall, avoiding dead zones and improving the uniformity of the gas-liquid-solid three-phase mixing. The mass transfer coefficient is improved compared to traditional agitators.

The application discloses a shrinkage-compensating concrete containing acid-free weak base expandable graphite and a preparation method thereof. The concrete comprises cement 200-500 parts, mineral admixtures 50-200 parts, fine aggregate 600-800 parts, coarse aggregate 1000-1300 parts, water 120-200 parts, additive 5-15 parts and acid-free weak base low-temperature expandable graphite 15-75 parts. The expansion trigger temperature of the graphite is 90-100 DEG C, and the pH value is 6.0-8.0. The method comprises the following steps: firstly, uniformly mixing and stirring cement, mineral admixtures, fine aggregate, coarse aggregate and acid-free weak base low-temperature expandable graphite to obtain dry mixture B; secondly, mixing water and additive and adding the mixture into the dry mixture B to uniformly stir to obtain a concrete mixture; and thirdly, forming the concrete mixture, carrying out steam curing after final setting, naturally cooling to room temperature and obtaining the shrinkage-compensating concrete. Therefore, the concrete self-shrinkage can be precisely and efficiently compensated in the steam curing process of the concrete.

This utility model discloses a mechanical extension structure for a sofa, including a base, a drive unit, two bases for mounting the seat cushion structure, and extension units respectively mounted on the two bases. The extension unit includes a leg assembly, a swing mechanism, and a backrest assembly. The swing mechanism includes a front support rod, a middle connecting rod, a rear support rod, a front swing rod assembly, a connecting rod assembly, and a rear swing rod assembly. One end of the front support rod and one end of the rear support rod are respectively hinged to the middle connecting rod, and the other end of the front support rod and the other end of the rear support rod are respectively hinged to the base. The middle connecting rods of the two swing mechanisms are connected by a synchronizing rod. The front swing rod assembly includes a front main swing rod with one end hinged to the base and a front auxiliary swing rod with one end hinged to the middle connecting rod. The front main swing rod and the front auxiliary swing rod are hinged together. The rear swing rod assembly includes a rear main swing rod with one end hinged to the base and a rear auxiliary swing rod with one end hinged to the middle connecting rod. The rear main swing rod and the rear auxiliary swing rod are hinged together. The front swing rod assembly is connected to the rear swing rod assembly through the connecting rod assembly.

The application discloses a kind of coal mine roadway supporting scheme dynamic parameterization design method and system, and design method includes the following steps: obtaining the multi-source heterogeneous data of coal mine lane, constructs the knowledge graph of coal mine roadway supporting field, forms original characteristic parameter set;Regression and classification double-path prediction framework is constructed, and the original characteristic parameter is carried out depth feature extraction, associated learning and candidate scheme generation, and the initial scheme of supporting parameter is output;By physical information neural network, the endogenous constraint is applied to the initial scheme of supporting parameter, while combining the rules of supporting specification information, the double verification is carried out to supporting scheme, and through the automatic adjustment of the parameter that does not satisfy constraint condition is carried out to the antagonistic correction mechanism;The supporting scheme is updated dynamically, and the parameter deviation caused by the discontinuity of geological exploration or environmental disturbance is corrected, and the adaptive optimization and iterative update of supporting scheme are realized by reinforcement learning strategy and incremental closed loop mechanism, and the final supporting scheme is obtained.

The invention discloses a joint flexible driving device, a driving method and application, and belongs to the technical field of joint drive.The joint flexible driving device comprises a driving plate used for being connected with an air bag or a to-be-driven joint; the air bag and the driving plate are alternately connected in series to form a flexible driving mechanism, and the flexible driving mechanism is used for inflating or inhaling deformation to drive the to-be-driven joint; the at least one air bag is inflated and deflated at the same time, and the air bag deforms softly through differential control of inflation and suction; the air bags and the driving plates are alternately connected in series to form the flexible driving chain of the multi-stage air bags; therefore, the force transmission efficiency of the flexible part during large-angle circumferential driving is greatly improved, and the effective angle range of flexible part driving is remarkably expanded; according to the flexible joint driving device, through differential inflation and air suction control of the air bag, the air bag deforms flexibly in the driving process, the whole flexible joint driving device is flexible and transmits flexible driving force, and precision and flexibility of joint driving are facilitated.

The invention belongs to the technical field of seismic resistance and rail restraint of urban rail traffic engineering, and relates to a transverse steel rail restraint device which comprises two sets of steel rail fasteners and two sets of limiting assemblies, each limiting assembly comprises a mounting base, an abutting protrusion, thermal bimetal, a disc-shaped force transmission piece, an elastic piece and a limiting rod, and the elastic piece is arranged on the outer side of the limiting rod in a sleeving mode. A mounting groove is formed in one end of the mounting base, the elastic piece, the disc-shaped force transmission piece, the thermal bimetal and the abutting protrusion are sequentially arranged in the mounting groove, the elastic piece abuts against the bottom wall of the mounting groove, and one end of the limiting rod is connected with the bottom wall of the mounting groove. The thermal bimetal comprises a first metal layer and a second metal layer which are sequentially arranged, and the thermal expansion coefficient of the first metal layer is larger than that of the second metal layer. The abutting protrusion is arranged on the side, away from the second metal layer, of the first metal layer and used for abutting against the side face of the steel rail. The transverse restraining device for the steel rail can prevent double failures that transverse displacement of the steel rail exceeds the standard and longitudinal stress exceeds the limit.

This invention relates to the field of engineering construction technology, specifically a construction method for a tunnel on a high slope. The method includes: S01, excavating the top of the tunnel and providing slope support; S02, excavating the right side of the tunnel and providing temporary support; S03, excavating the left side of the tunnel and providing initial support, pre-anchor support, and temporary steel frame support; S04, pouring the left tunnel structure and bottom slab; S05, constructing temporary steel frame support and dismantling the existing temporary steel frame support; S06, constructing the right tunnel structure; S07, constructing ancillary structures such as drainage ditches, cable trenches, and road surfaces within the tunnel; S08, backfilling and counter-pressure at the top of the tunnel, constructing a top seepage-proof layer, drainage ditches, and landscaping. This invention reduces excavation volume, minimizes damage to the natural environment of the mountain, avoids slope deformation and instability caused by prolonged exposure, and ensures the safe and smooth progress of the project. It also avoids structural damage to the tunnel due to water accumulation and insufficient backfill compaction.