1561 results about "Retaining wall" patented technology

The invention provides a reinforced soil retaining wall risk early warning method and system based on multi-source heterogeneous monitoring data, and belongs to the technical field of building risk early warning, the method comprises the following steps: inputting first data into a prediction model to obtain second data, the first data being historical monitoring data of a reinforced soil retaining wall to be detected, and the second data being historical monitoring data of the reinforced soil retaining wall to be detected; the second data is monitoring data of the reinforced soil retaining wall to be measured at the target moment; determining a construction data type based on the weather information of the target moment, and constructing data in the second data based on the construction data type to obtain construction data; and inputting the construction data, the second data and the weather information at the target moment into a risk early warning model to obtain a risk early warning result of the to-be-detected reinforced soil retaining wall at the target moment. According to the reinforced soil retaining wall risk early warning method and system based on the multi-source heterogeneous monitoring data, the accuracy and reliability of reinforced soil retaining wall risk early warning can be improved.

The invention discloses a road flood damage disaster rapid identification method and system based on remote sensing image analysis, and belongs to the technical field of remote sensing image analysis and disaster detection, and the method comprises the steps: extracting a change region of a pre-disaster and post-disaster remote sensing image through a multi-scale differential twin network change detection module; identifying five water destruction types, namely roadbed washout, pavement collapse, side slope collapse, retaining wall collapse and bridge and culvert damage, through the cascade attention water destruction semantic segmentation network; a multi-dimensional damage degree collaborative evaluation module is used for fusing form, spectrum and spatial characteristics to calculate a damage degree grade; according to the method and the system, rapid identification, accurate classification and comprehensive evaluation of highway flood damage disasters are realized, and technical support is provided for decision-making of after-disaster rescue and maintenance.

The utility model relates to a structure for changing an existing railway bridge into a rigid roadbed. The structure comprises a pile foundation, a bearing platform, a bearing platform top retaining wall and a filling steel plate. The pile foundation and the bearing platform are located below an existing bridge girder, the existing bridge girder is separated from an original support after being lifted, and a filling steel plate is inserted between the bottom of the existing bridge girder and the bearing platform. The bearing platform top retaining walls are located on the two transverse sides of the existing bridge girder and located on the top of the bearing platform, and early-strength micro-expansion concrete is poured on the upper portion of the bearing platform, the inner sides of the bearing platform top retaining walls and the lower portion of the existing bridge girder. According to the utility model, two structures of a bridge and a roadbed are reasonably integrated, the structure is novel, the stress is reasonable, the improved structure has better overall performance, the stress and deformation requirements of the turnout structure can be better met, the purpose of inserting the turnout into the existing railway bridge transition area can be completed under the condition of not interrupting the railway operation, and the construction efficiency is improved. The influence of the existing railway wiring reconstruction project on traffic operation is greatly reduced, and the construction period is shortened.

The invention relates to an active unloading sheet pile revetment reinforcement design method and structure, and belongs to the technical field of revetment reinforcement. Channel parameters and soil mechanical characteristics are measured, design reinforcement piles with the same height as original pile foundations are arranged on the back edge of a revetment, and a pile spacing calculation formula is established based on the soil arching effect; the load sharing ratio of the reinforcing pile is controlled and designed by adjusting the pile diameter; the reinforcing structure designed through the method comprises prestressed sheet piles, a bearing platform, designed reinforcing piles, a gravity type retaining wall, a slope protection surface layer, a concrete coping, an original mud surface line and a designed mud surface line, the pile diameter and the pile distance of the designed reinforcing piles are dynamically adjusted according to the dredging depth, and the thicker a dredging soil layer is, the larger the soil pressure is, the larger the pile diameter is, and the denser the distance is. An original revetment upper structure does not need to be dismantled, the construction period is greatly shortened, and resource waste is reduced; the front line of the revetment does not move forwards, and use of an existing navigable water area is not affected; the construction mode is flexible, land dry land or water construction can be selected according to surrounding conditions, the construction period is short, the speed is high, and the construction cost is low.

The invention discloses a soft soil foundation embankment heightening and widening structure and a construction method, and belongs to the field of water conservancy projects. In order to solve the problems of uneven settlement, landslide instability and overlarge occupied area easily occurring when the soft soil foundation embankment is heightened and widened, the structure comprises precast concrete piles (top beams and ripraps are arranged on the tops of the piles) densely arranged at the slope toe outside the embankment, an inner side cantilever retaining wall (with drainage holes and a gravel inverted filter), geogrids laid in backfill soil in a layered mode, and CFG piles arranged on the lower portion in a plum blossom shape. The guardrail base and the flower bed are integrally poured with the retaining wall. The construction method comprises the steps of slide-resistant pile construction, earthwork excavation, CFG pile construction, retaining wall pouring, embankment body backfilling and embankment top road construction. Bidirectional control over settlement and horizontal displacement is achieved through cooperation of multiple structures, variable-stiffness leveling can be achieved by adjusting parameters of the CFG piles, and the variable-stiffness leveling structure has the advantages of skid resistance, stability, landscape optimization and land occupation saving and is suitable for soft soil foundation embankment upgrading and reinforcing projects.

The invention relates to a self-repairing flow state solidified soil reinforced retaining wall for slope toe reinforcement and a construction method, and the retaining wall comprises a wall body which is formed by self-repairing flow state solidified soil in a cast-in-place mode and is provided with extension sections on the two sides, and drainage holes are formed in the extension sections; the foundation is arranged on the foundation and used for supporting the wall body; the reinforcement system is composed of multiple layers of geogrids and embedded in the wall body in a layered mode, one end of each layer of geogrid is anchored in the wall body, and the other end of each layer of geogrid extends backwards and is anchored in the backfill area; when the retaining wall has micro-cracks due to uneven settlement of a soft foundation, the high-alkali environment at the cracks can immediately trigger the alkali-sensitive self-repairing microcapsules to be broken, the released repairing material can generate gel in situ to seal the cracks, the mechanism converts traditional passive damage into active repairing, crack development is effectively restrained, an erosion channel is blocked, and the service life of the retaining wall is prolonged. Therefore, the long-term durability of the retaining wall is obviously improved.

The invention relates to the technical field of side slope building, in particular to a side slope anchor rod retaining wall structure optimization analysis method, which comprises the following steps: a geological data acquisition step: acquiring geological data of a preset reinforcing area of a side slope according to a multi-source data acquisition strategy, and synchronously acquiring deformation monitoring data of each section of the side slope; a structural model construction step: constructing a three-dimensional coupling model of the side slope and the anchor rod retaining wall according to the geological data; a stability evaluation step of performing analysis according to the three-dimensional coupling model and the deformation monitoring data to determine an anti-sliding stability coefficient, an anti-overturning stability coefficient and a key risk area of each section of the slope, and constructing a three-dimensional safety evaluation space; and an optimization scheme generation step: generating an anchor rod retaining wall optimization parameter combination according to the key risk area and the three-dimensional safety assessment space, and screening out an optimal optimization scheme. The method has the advantages that the design optimization efficiency of the anchor rod retaining wall structure can be improved, and the overall slope retaining wall design construction period is shortened.

The invention relates to the technical field of geotechnical engineering, in particular to a slip crack surface calculation method for a limited-width soil body in an active non-limit state. Comprising the following steps: step 1, determining a gradual exertion rule of a limited soil body internal friction angle and cohesion between the rigid gravity type retaining wall and an existing bedrock, a wall-soil external friction angle and wall-soil interface cohesion developing along with the displacement of the retaining wall, and establishing mathematical characterization of limited soil body non-limit state strength parameters developing along with the displacement of the retaining wall; step 2, establishing a relationship among the horizontal stress, the interlayer shear stress and the average vertical stress; step 3, establishing a balance equation of the rectangular area and the triangular area in the horizontal and vertical directions; 4, solving the slip crack surface inclination angle meeting the plastic upper limit theorem by adopting a numerical method; and 5, calculating the resultant force of the horizontal active soil pressure and the upsetting moment of the horizontal active soil pressure on the wall heel. The method provides a theoretical calculation basis for the design of the soil retaining structure under the working condition of the limited-width soil body.

The invention provides an ecological reinforcing structure of a river channel grouted rubble retaining wall revetment, the ecological reinforcing structure takes double-row pile foundations and a planting platform as a core design concept, the first pile foundation is located at the foot of an existing grouted rubble retaining wall, the top of the pile foundation is provided with a reinforced concrete guide beam, and the second pile foundation is located at the foot of the existing grouted rubble retaining wall; the newly-built guide beam is connected with an existing grouted rubble retaining wall base into a whole through embedded steel bars, the integrity and the anti-sliding capacity of the retaining wall are remarkably enhanced, and base emptying and wall body deformation are effectively restrained. The second pile foundation structure is a planting pile and backfill soil behind the planting pile to construct an aquatic plant planting platform, geotechnical cloth is laid between the planting pile and the backfill soil, soil particle loss can be prevented, water is allowed to freely permeate, and normal exchange between water and soil is maintained. The stability of an existing retaining wall is guaranteed, an aquatic plant planting platform is constructed, the whole reinforcing system is hidden under the normal water level, the natural form of a river channel is maintained, and deep integration of ecology and safety is achieved.

The utility model discloses an anchor rod protection and retaining wall combined mountain structure in the field of civil engineering, which comprises a retaining wall, the front side of the retaining wall is fixedly connected with a fixing plate through threads, the front side of the fixing plate is fixedly connected with a shell, and an adjusting mechanism is arranged in the shell; an anchor rod is connected to the interior of the shell through the adjusting mechanism, the anchor rod penetrates through the rear side of the retaining wall, an anti-retreating mechanism is arranged at the rear end of the anchor rod, the anchor rod protects a mountain structure combined with the retaining wall, by means of the arrangement of the fixing plate, the shell and the adjusting mechanism, a rotating disc is rotated, a threaded rod is driven to rotate, a sliding block is made to move, and therefore the retaining wall is protected; the first connecting rod is driven to deflect, so that the rotating plate deflects, the angle of the rotating plate is changed, matching with the inclination angle of the anchoring rod is facilitated, the base plate is attached to the rotating plate, the anchoring rod is prevented from loosening, the anchoring rod is stably installed, and the anchoring stability of the retaining wall is improved.

The invention relates to a debris flow gully slope protection structure, and relates to the technical field of water conservancy projects. Multi-stage counter-slope terraces are arranged on the slope surface of the debris flow gully slope from the bottom end to the top end, each terrace structure comprises a terrace surface, ridges and a terrace ditch which are arranged upwards at intervals along a contour line, each layer of counter-slope terrace is separated by using a mortar rubble retaining wall as the ridge, the terrace surface is covered with soil by using a slope native soil layer, and the terrace ditch is connected with the ridge of the next stage of terrace by adopting a mortar rubble material. The field surface has a reverse slope inclination angle of 5-10 degrees, and crops can be planted on the field surface. The field ditches are communicated with main drainage ditches on the two sides of the terrace along the contour line downwards, and metal gates are arranged at the joints to control water flow, are closed when water storage is needed and are opened when water drainage is needed. The structure can effectively reduce the material, construction and maintenance cost, has high debris flow resistance, can stabilize the debris flow channel slope, reduces the water and soil loss of the slope, plays a role in terrace water storage and drainage, and further protects and promotes the growth of crops.

The utility model discloses a template for retaining wall graded broken stone inverted filter construction, which comprises a template body and a rib plate arranged on one side of the end face of the template body, and the rib plate is provided with a reference part with the width consistent with the thickness of an inverted filter to be constructed. The thickness consistency of the inverted filter layer can be guaranteed, the construction quality is guaranteed, the construction difficulty is reduced, the construction efficiency is improved, resource waste is reduced, and the construction cost is controlled.

The present invention belongs to the technical field of foundation pit support, and in particular relates to an anti-collapse support structure for a deep foundation pit, comprising a foundation pit, a plurality of cast-in-place piles fixedly provided at the bottom of the foundation pit, a plurality of purlins fixedly connected to the side walls of each cast-in-place pile, a plurality of inclined anchor rods fixedly connected to each purlin and the side walls of the foundation pit, a retaining wall fixedly connected to the bottom of the foundation pit, and a plurality of active support mechanisms fixedly installed between the retaining wall and the plurality of cast-in-place piles. The present invention can improve the stability of the pile-anchor support, and can actively strengthen the support according to the pressure of soil collapse, thereby improving the anti-collapse performance of the support. At the same time, it can also be automatically triggered in stages to perform collapse buffering protection at the inner outer edge of the foundation pit, which can not only alert on-site personnel, but also reduce the degree of collapse risk and improve safety.

The invention discloses a balance weight type ecological road shoulder retaining wall, and relates to the technical field of balance weight type road shoulder retaining walls, the balance weight type ecological road shoulder retaining wall comprises a retaining wall mechanism, the retaining wall mechanism comprises a soil filling layer, a stone wall is piled in the soil filling layer, and a plurality of tie rods are fixedly embedded in the stone wall; the other end of each tie rod is fixedly embedded in the soil filling layer, a first clay anti-seepage layer is laid in the soil filling layer, the left side face of the first clay anti-seepage layer makes contact with the right side face of the stone wall, and the left side face of the stone wall is fixedly connected with a fly side wall. The stored rainwater can be supplied to vegetation at the landscape ecological side slope through capillarity, so that the vegetation can obtain relatively sufficient water, normal growth of the vegetation around the landscape ecological side slope is guaranteed, the balance weight type ecological road shoulder retaining wall can better assist growth of the vegetation in the landscape ecological environment, and the landscape ecological side slope is protected. The landscape ecological environment maintaining effect of the balance weight type road shoulder retaining wall is improved to a certain degree.

The invention particularly discloses a layered and segmented composite fabricated foundation pit support structure and a construction method. According to the overall technical scheme, double enclosure of deep mixing piles and a cemented soil retaining wall is followed, truss rib laminated slabs are spliced in a layered and segmented mode, an anchor rod group transversely penetrates through the deep mixing piles to be anchored into the cemented soil retaining wall, anchor rod holes are also used as high-pressure grouting holes, anchor rod sleeves guide anchor rods to enter soil and assist the truss rib laminated slabs to be in place, and high-strength grouting materials are grouted at high pressure; according to the design concept of the pile-wall-plate-anchor rod composite type foundation pit support structure, a technical system that a soil layer outside a foundation pit is stabilized through a cement soil retaining wall, force is borne by deep mixing piles, support grouting forming is conducted through a truss rib laminated plate, and overall cooperative bearing is strengthened through anchor rod driving is constructed. And the supporting requirements of complex geological environments and large-depth foundation pits are stably met.

The invention discloses an intelligent driving mine card accurate parking dumping method, system and device and a storage medium, dumping accurate parking of an intelligent driving mine card is carried out based on local point cloud map construction and point cloud detection, an accurate dumping parking end point is generated by detecting a latest dumping retaining wall area and a dumping boundary, and the intelligent driving mine card accurate parking dumping method, system and device are applied to the intelligent driving mine card. The mine truck is guided to accurately stop at the position for dumping, earthwork is prevented from invading the dumping storage location area, and smooth operation of subsequent vehicles is guaranteed; meanwhile, the dumping boundary lines uploaded by the single vehicles are integrated at the cloud end, the dumping boundary of the whole dumping retaining wall area is updated in real time, important prior information is provided for accurate parking and dumping parking of subsequent vehicles, single vehicle intelligence and group information closed loop are achieved, and the overall working efficiency and the intelligent level of a mining area are improved.

The landslide dammed lake landform utilization and restoration method comprises the steps that backfill back pressure is conducted on a slope toe river channel at the front edge of a landslide, reinforced concrete retaining walls are arranged at the upstream end and the downstream end of a backfill back pressure area respectively to stabilize backfill bodies of the backfill back pressure area, and water from the upstream of the river channel is intercepted to form a water storage area; reinforced concrete flood discharge and sand discharge holes are linearly distributed in stable mountain bed rock outside the landslide area, the inlet ends of the flood discharge and sand discharge holes are connected with an upstream water storage area river bank, the outlet ends of the flood discharge and sand discharge holes are connected with a downstream river bank slope, and a water pump station and a pipeline are built in a geological stable area of the water storage area to lift water. The land in the landslide area is recycled; by arranging the backfill back pressure area and the flood discharge and sand discharge hole, on the basis of stabilizing the landslide weir body, the water pumping station and the water lifting pipeline are built, water stored in the water storage area is utilized to irrigate and recycle land in the landslide area, land utilization and ecological restoration are carried out on the basis of landslide prevention and control, and the landslide treatment effect is improved.

The cantilever type retaining wall comprises a plurality of waste L-shaped beams, the sides, with flanges, of the waste L-shaped beams face a mountain, the bottoms of the waste L-shaped beams are embedded into the position below a foundation by a set depth, and the space between the waste L-shaped beams and the mountain is filled and tamped through lateral filling soil; the adjacent ends of all the waste L-shaped beams are fixedly connected through connecting transverse partition plates to form a retaining wall, and settlement joints are arranged on the retaining wall at equal intervals. The invention further discloses a construction method of the cantilever retaining wall for recycling the waste T-shaped beams. According to the method, the T-beam of the abandoned bridge can be reused, pollution of construction waste to the environment is reduced, the retaining wall built by the abandoned T-beam serves as a structure for supporting a natural or artificial slope mountain body to be free of collapse so as to keep the stability of a soil body, and great economic benefits and ecological benefits are achieved.

The invention particularly discloses a layered and segmented composite fabricated foundation pit support structure and a construction method. According to the overall technical scheme, double enclosure of deep mixing piles and a cemented soil retaining wall is followed, truss rib laminated slabs are spliced in a layered and segmented mode, an anchor rod group transversely penetrates through the deep mixing piles to be anchored into the cemented soil retaining wall, anchor rod holes are also used as high-pressure grouting holes, anchor rod sleeves guide anchor rods to enter soil and assist the truss rib laminated slabs to be in place, and high-strength grouting materials are grouted at high pressure; according to the design concept of the pile-wall-plate-anchor rod composite type foundation pit support structure, a technical system that a soil layer outside a foundation pit is stabilized through a cement soil retaining wall, force is borne by deep mixing piles, support grouting forming is conducted through a truss rib laminated plate, and overall cooperative bearing is strengthened through anchor rod driving is constructed. And the supporting requirements of complex geological environments and large-depth foundation pits are stably met.

The invention discloses a well pit water interception and soil retaining parapet wall structure, and relates to the technical field of well pit water interception construction. A well pit water-intercepting and soil-retaining parapet wall structure comprises a plurality of steel sheet piles which are spliced in a meshed mode, each steel sheet pile comprises a bottom plate and side plates connected with the two ends of the bottom plate respectively, meshing buckles are arranged on the side plates, and each meshing buckle comprises a first frame plate, a second frame plate and a filling meshing connecting assembly, and the first frame plate, the second frame plate and the side plates are continuously formed. The meshing buckles between the adjacent steel sheet piles are meshed with each other; the arc surface clinging design is adopted for structures such as the first inner wall arc surface / second inner wall arc surface between the side plate and the first frame plate, the first inner wall arc surface / second inner wall arc surface between the first frame plate and the second frame plate, the outer wall of the first water interception arc part / second water interception semi-arc part, the first inner folded plate arc surface / second inner folded plate arc surface and the like, traditional right-angle splicing is replaced, continuous sealing can be achieved through an arc interface, and gaps easily generated by right-angle splicing are eliminated; and the external expansion arc parts form pre-pressure through mutual extrusion, so that the fitting sealing performance is further improved, and the watertight effect can be realized without depending on an external sealing strip.

The invention discloses a multi-index railway slope retaining wall stability early warning method based on the Internet of Things, and relates to the technical field of the Internet of Things. Comprising the following steps of data collection, wherein MEMS acceleration sensors are evenly distributed at the top and the bottom of a retaining wall, and the MEMS acceleration sensors are used for sampling to obtain acceleration data; data transmission: uploading the acceleration data to a server; performing data processing on the acceleration data by using a built-in algorithm of the server to obtain a velocity amplitude ratio, an inherent frequency and an attenuation constant; and in combination with the velocity amplitude ratio, the first threshold value and the second threshold value of the attenuation constant and the inherent frequency, the stability of the retaining wall is evaluated and early warned based on the results. According to the method, various dynamic indexes such as the velocity amplitude ratio, the inherent frequency and the attenuation constant are comprehensively considered, the recognition precision and integrity of the structural stability change are remarkably improved, risk omission caused by parameter weighting imbalance is avoided, and the robustness of an evaluation system and the timeliness of field intervention are ensured.

The invention relates to the technical field of retaining walls, in particular to an anti-overturning retaining wall supporting structure which comprises a base used for being placed on the ground, and adjusting grooves are symmetrically formed in the top face of the base; the formwork is used for pouring a multi-face retaining wall part, and the formwork is fixedly connected with the side face of the base; the adjusting part is used for adjusting the inclination direction of the formwork, the adjusting part is arranged on the adjusting groove, and the adjusting part is connected with the side face of the formwork; the supporting part is used for supporting the template, and the supporting part is fixedly arranged on the top surface of the base; positioning pins are symmetrically and fixedly mounted on the top surface of the base; the process requirement for pouring a multi-face soil retaining part can be met, and meanwhile the possibility of overturning of the retaining wall formwork can be reduced.

The invention relates to the technical field of geological disaster early warning, in particular to a landslide mechanism-data dual-drive early warning system based on a deformation work theory. According to the method, a mechanism driving model is constructed, and a geomechanical mechanism is quantified into a computable energy reference; the data acquisition module acquires real-time data to construct a data driving model, the energy dynamic calculation module analyzes data such as deformation power, and the data acquisition module and the energy dynamic calculation module cooperate to provide a more scientific and comprehensive basis for early warning; graded early warning signals are obtained through numerical analysis and matching, the landslide state can be judged more accurately, and early warnings of different grades are sent out in time; according to the method, corresponding emergency response operations such as data acquisition frequency adjustment, standby sensor starting, intelligent retaining wall hydraulic support system triggering and evacuation prompt playing are triggered according to the graded early warning signals, visual monitoring is performed according to the ratio of deformation power to damage power, and landslide risk management and control are enhanced.

The present invention relates to an assembled drainage retaining wall structure and a construction method thereof, comprising a plurality of S-shaped prefabricated wall bricks, I-shaped columns, connecting plates and a bottom plate; the assembled drainage retaining wall structure realizes modular assembly, and the modules are made more universal by prefabricated assemblies, and are convenient for construction and connection, maintenance and replacement; connecting plates are used to connect the upper and lower prefabricated wall bricks, the prefabricated wall bricks and the bottom plate, and the I-shaped columns and the bottom plate. Compared with traditional mortise and tenon or fastener connection methods, the precision requirements are not high, the installation is convenient, and the connecting plates can be arbitrarily cut on site according to actual conditions, thereby increasing the on-site applicability of the retaining wall structure.

The utility model discloses a retaining wall sealing type drainage device for a goaf. Relates to the technical field of underground mining and comprises a three-way pipe, the three-way pipe comprises a main pipe, a first branch pipe and a second branch pipe, the first branch pipe is communicated with the end of the main pipe, the second branch pipe is communicated with the middle section of the main pipe, and a desilting valve is arranged at the end, close to the second branch pipe, of the main pipe; the main pipe is buried at the bottom of a goaf retaining wall, the first branch pipe extends into a goaf, and the second branch pipe is arranged outside the goaf. Through the arrangement of the three-way pipe, a water seal is constructed between the goaf and the construction area, accumulated water in the goaf is discharged according to the communicating vessel principle, and poisonous and harmful gas in the goaf cannot be discharged; meanwhile, the device automatically drains water in the whole process, and manual control is not needed; and a small part of residual accumulated water is not enough to influence the strength of the filling body.

The invention provides a bridge floor slag blocking wall stability analysis system and method for a high-speed railway, and relates to the technical field of high-speed railway engineering. The system comprises a data acquisition and processing unit, a structure analysis and calculation unit and a stability evaluation and early warning unit. The data acquisition and processing unit is used for acquiring geometric parameters of the slag wall, material performance parameters and original data and historical data of environmental load; the structural analysis and calculation unit is used for simulating dynamic stress and displacement response of the slag wall under multiple working conditions in the whole life cycle based on the original data and the historical data; and the stability evaluation and early warning unit is used for carrying out self-adaptive intelligent judgment on the stable state of the slag blocking wall based on the dynamic stress and the displacement response, carrying out graded early warning on potential risks and predicting the evolution trend of the potential risks. The method and the device are used in the stability analysis process of the bridge floor slag blocking wall, and solve the technical problem of lagging risk early warning of the stability analysis of the bridge floor slag blocking wall of the high-speed railway in the prior art.

The invention relates to the technical field of civil engineering, in particular to an anti-overturning vibration isolation building. The vibration isolation building comprises a vibration isolation building body, the vibration isolation building body is supported on a foundation through an elastic vibration isolation device, the vibration isolation building further comprises a peripheral supporting structure and an anti-overturning structure, and the peripheral supporting structure comprises rock soil on the periphery of the vibration isolation building body, a retaining wall or a peripheral supporting building fixedly connected with the ground foundation; the anti-overturning structure comprises at least two layers of transverse elastic supporting sets which are arranged between the vibration isolation building body and the peripheral supporting structure up and down, and each transverse elastic supporting set comprises a plurality of transverse elastic supporting devices which are arranged at intervals in the horizontal direction. The safety and reliability of a vibration isolation building main body can be greatly improved when an earthquake occurs, and the device has good vibration and earthquake double-control performance, is simple in structure, good in economical efficiency, high in cost performance, safe and reliable, and can be widely applied to various vibration isolation building projects provided with peripheral supporting structures.

The invention belongs to the field of phosphorite mountain mining, and relates to a mining method suitable for a gently inclined thick and large phosphorite body containing a soft interlayer, which comprises the following steps: carrying out stope division and pseudo-inclined strip arrangement, dividing the ore body into manageable mining units, and optimizing a stoping sequence and a filling strategy; roof pre-cutting construction and roof supporting are conducted, a top ore bed is stoped and supported, and the stability of a roof is controlled; stoping the chambers, extracting the ores in the chambers, and adopting different stoping modes according to the thicknesses of the clamped ores, so as to maximize the ore recovery rate and minimize the loss; clamping stone processing and transferring are conducted, processing is conducted according to the thickness of the clamping stone, the clamping stone is removed to improve the ore grade, or the clamping stone is reserved; a filling retaining wall is constructed, and a retaining wall is arranged in the mined-out area after stoping; and subsequent filling and pillar stoping are conducted, the goaf is filled with filling materials, surrounding rock is supported, and pillars are stoped to achieve comprehensive recovery of resources. The problems that a traditional method is high in depletion rate, difficult in roof control and poor in adaptability are solved, and the mine production efficiency is remarkably improved.

The invention provides a multi-factor coupling gravity retaining wall reliability evaluation and optimization method, and belongs to the technical field of geotechnical engineering. The method comprises the following steps: constructing a physical model containing parameters such as self weight, friction coefficient, height, filling weight and compaction degree; establishing a multi-factor dynamic coupling model which comprises a water level time-varying model, an earthquake coefficient probability model and a compactness degradation model; constructing a limit state function integrating the soil pressure, the water pressure and the seismic inertia force; calculating a time-varying failure probability through random numerical simulation; the importance degree of each factor is quantitatively evaluated by adopting standardized indexes; optimization measures such as compaction degree improvement, water level fluctuation reduction and dead weight increase are put forward, and the effect is verified. According to the method, the problems of single-factor analysis, static modeling, importance evaluation and the like of a traditional method are solved, dynamic coupling analysis of three factors of earthquake, water level fluctuation and compactness degradation is achieved, and a scientific basis is provided for design and maintenance of the gravity retaining wall.

A deep foundation pit supporting system suitable for different stratigraphic structures, comprising a sealed bag (1), freezing pipes (2), vacuum pipes (3), a reinforcing cage (4), and sand (5). The sealed bag (1) is disposed in a groove section formed in a foundation around a foundation pit, and the reinforcing cage (4), the sand (5), the multiple freezing pipes (2), and the multiple vacuum pipes (3) are all disposed in the sealed bag (1). Upper ends of the freezing pipes (2) and the vacuum pipes (3) pass through an upper end surface of the sealed bag (1), and are then connected to a cold source and a negative pressure source, respectively. The sealed bag (1), having undergone vacuum evacuation and freezing treatment, together with the reinforcing cage (4), the sand (5), the freezing pipes (2) and the vacuum pipes (3) inside, forms a frozen vacuum reinforced sand wall, and multiple sections of frozen vacuum reinforced sand wall are connected end to end to form a retaining wall distributed around the foundation pit.