308 results about "Rammed earth" patented technology

Disclosed in the present invention is a coiled tubing drilling downhole system convenient to move and position. The downhole system comprises a base plate, wherein four through slots run through the bottom of the base plate, four universal wheels are provided at the bottom of the base plate, handlebars are fixed to one side of the top of the base plate, a support frame is provided above the base plate, four square tubes are fixed to the support frame, positioning and stabilizing assemblies are respectively provided inside the four square tubes, a traction roller is rotatably connected inside the support frame, and a first electric motor is fixed to one side of the support frame. The present invention relates to the technical field of oil exploration. The coiled tubing drilling downhole system convenient to move and position, by means of providing automatic soil-ramming mechanisms, automatically rams soil and gravel divided to two sides of the mouth of a borehole, and, by means of cooperation and linkage with automatic soil division assemblies, prevents loose soil and gravel around the mouth of the borehole from slipping into the borehole, thereby improving the drilling efficiency.

The invention discloses a prediction method for quantifying the development degree of undermining diseases of rammed earth cultural relics, and relates to the field of cultural relic protection. The method comprises the steps of obtaining three-dimensional laser point cloud data and close photography three-dimensional model data of the rammed earth cultural relics; fusion of the three-dimensional laser point cloud model and the close photography three-dimensional model is realized, and a rammed earth cultural relic undermining disease three-dimensional model is constructed; based on the rammed earth cultural relic undermining disease stereoscopic model, quantitative indexes of undermining disease development are extracted, and an undermining disease development prediction model is constructed and optimized; and generating and outputting a quantitative report of the development degree of the undermining disease of the rammed earth cultural relics. According to the method, three-dimensional laser scanning and close photogrammetry are combined, differentiated routes are designed for areas with different heights, alignment of cross section contours of different models is realized based on Fourier description, a Poisson curved surface reconstruction technology is combined with a hole filling algorithm to complement missing parts of the models, spatial distribution and morphological characteristics of undercut diseases are intuitively presented, and the method is suitable for large-scale popularization and application. The change rule of undercut diseases along with time is quantified, and protection work is promoted to be changed from passive repair to active prevention.

The invention relates to an intelligent roadbed rammed earth water content detection method based on machine vision. The method comprises the following steps: step 1, acquiring sample data and performing data preprocessing; 2, training a plurality of machine learning models for the data set; 3, performing comprehensive analysis and evaluation on the fitting condition of the model prediction result by adopting a plurality of model evaluation indexes; 4, selecting the model with the best fitting effect as a final prediction model and optimizing the model; and 5, detecting the rammed earth image by adopting the final prediction model, and efficiently and accurately predicting the water content of the soil. According to the technical scheme, the water content of the rammed earth is rapidly and accurately detected by adopting an image recognition technology. In addition, the method further has good environmental adaptability and real-time monitoring capacity, and the quality and efficiency of roadbed construction can be effectively improved.

The invention discloses a lossless detection mold and method for a rammed earth wall, and relates to the technical field of civil engineering and cultural relic protection. In order to solve the problem that in a traditional rammed earth wall nondestructive detection method, it is difficult to establish an effective corresponding relation between signal features and physical and mechanical parameters, the rammed earth wall nondestructive detection mold and method comprise the steps that rammed earth materials are prepared with reference to the soil texture of an ancient wall, and the rammed earth materials are filled into the rammed earth mold in a layered mode to prepare a wall-like test piece; carrying out nondestructive detection on the city-wall-like test piece by adopting a geological radar to obtain an oscillogram and a grey-scale map, and extracting a detection signal; sampling the city-wall-like test piece, carrying out a physical and mechanical test, and establishing a parameter database in which detection signal parameters are associated with physical and mechanical parameters; and finally, carrying out field detection on the ancient city wall, carrying out geological radar detection to obtain an actual detection signal, and matching the actual detection signal with the parameter database to obtain physical and mechanical parameter information of the ancient city wall. The method can effectively improve the accuracy of lossless detection of the rammed earth structure, and provides a scientific basis for ancient city wall protection.

The invention relates to the technical field of earthen archaeological site repair, and discloses an earthen archaeological site ramming modification material raw material ratio optimization method, which comprises: 1, selecting plain soil having the same or similar property with the earthen archaeological site rammed earth as a ramming main material; step 2, screening a pure soil modification material; 3, designing a three-element three-level test proportioning scheme for the three modified materials in the step 2; 4, determining the specification of the sample; 5, aiming at the determined sample specification, preparing a material test sample according to the proportioning scheme designed in the step 3; step 6, curing the prepared sample; step 7, performing indoor related tests on the cured sample; and step 8, analyzing test results in the step 7, and determining the optimal proportion of the earthen ruin ramming modification material. The invention provides a systematic and quantitative ramming reinforcement modified material proportion optimization method, so that material modification is more scientific, reasonable, economical and efficient, and it is also ensured that the modified rammed earth material is higher in strength and better in durability.

The invention discloses a handheld laser radar scanner and an application method of the handheld laser radar scanner in rural house surveying and mapping, and aims to solve the problems of low efficiency, poor precision and insufficient environmental adaptability of traditional surveying and mapping. The equipment integrates a multi-line laser radar, an inertial navigation system (INS), a multispectral imaging unit and an edge calculation module, and realizes three-dimensional reconstruction through a dynamic scanning strategy and an intelligent point cloud fusion algorithm. The core innovation comprises: 1, a multi-modal data fusion technology: laser point cloud and a multi-spectral image cooperate to identify physical characteristics of rural house building materials (such as rammed earth and wood); the narrow space is optimally designed, the size of the device is smaller than or equal to 15 cm * 8 cm * 5 cm, one-hand operation is supported, and indoor collision is avoided through a built-in anti-collision sensor; and 3, a farm house special algorithm library which comprises a roof inclination angle calculation module, a crack detection module and a structure safety evaluation module. Actual measurement shows that the equipment can still realize + / -2cm absolute precision in a GNSS signal-free environment, the surveying and mapping of 200m < 2 > rural houses can be completed in only 20 minutes through one-time operation, and the efficiency is improved by 5 times compared with that of a traditional total station.

The present invention relates to the technical field of rockfall motion tests, in particular to an indoor rockfall motion test device and a rammed earth structure. The indoor rockfall motion test device comprises: a bearing component, comprising a support, a mounting crossbar provided on the support and a release assembly provided on the mounting crossbar; a throwing component, comprising a rockfall start section provided on the support, a rock throwing section provided on the support, a dip angle adjustment member provided on the rock throwing section, a fallen rock stopping and deposition section provided on the support, and a fallen rock interception plate provided on the support; and high-speed cameras, wherein there are two high-speed cameras, one high-speed camera is provided on the mounting crossbar, and the other high-speed camera is provided on one side of the throwing component for photographing the throwing component. In the present invention, the slope shape can be adjusted at will, different plates can be replaced for laying, and filling materials can be replaced, so as to simulate different throwing adjustments, simulate soft and hard bedrocks with different strengths, and simulate different collapse deposition areas.

The utility model relates to the technical field of geological engineering, and discloses a backfilling device for geological drilling, and a ramming mechanism comprises a driving disc, a ramming mechanism and a ramming mechanism, the driving shaft center is movably connected to the outer surface of the driving disc; the rotating block is semicircular, and the semicircular transverse section of the rotating block is connected to the driving axis; the connecting spring is connected to the outer side of the driving disc; the buffer spring is connected to the bottom end of the supporting frame; and the earth ramming plate is mounted below the buffer springs. Through work of the driving disc, the driving disc synchronously drives the driving shaft center to rotate, the driving shaft center drives the rotating block to rotate immediately, the rotating block rotates, the rotating block flaps the earth ramming plate in a reciprocating mode immediately, the earth ramming plate pulls the buffer spring to oscillate in a reciprocating mode, and then the earth ramming plate tamps a backfilled drill hole. And it is guaranteed that the ground is tamped flat, and gaps do not exist.

The present invention belongs to the technical field of hospital construction, and specifically refers to a dust removal machine for rammed earth construction of hospital construction, including a fixed ring plate, a cleaning ring plate, a rammed earth port, a rotary dust collection mechanism and an increased dust suppression mechanism, wherein the cleaning ring plate is rotatably arranged on the outside of the fixed ring plate, the rammed earth port is arranged on the inner wall of the fixed ring plate, the rotary dust collection mechanism is arranged on the side wall of the cleaning ring plate, the increased dust suppression mechanism is arranged on the upper wall of the fixed ring plate, and the rotary dust collection mechanism includes a driving mechanism, a partitioning mechanism, a folding mechanism and a locking mechanism. The dust removal machine for rammed earth construction of hospital construction provided by the present invention can suppress the dust generated by the loosening of the surface layer of soil around the rammed earth construction due to mechanical vibration, reduce the generation of dust during the ramming operation, and can compact the loosened soil that has been changed into dust back to the surface layer of the soil.

The invention discloses a soft covering protection structure for an open earthen site in a humid environment and a construction method. The protection structure comprises a three-dimensional net-shaped geogrid overburden layer and a herbaceous plant layer. The three-dimensional net-shaped geogrid overburden layer is laid on the surface of the ruin body, and the herbaceous plant layer is located on the outer side of the three-dimensional net-shaped geogrid overburden layer. The three-dimensional net-shaped geogrid overburden layer comprises an inner-layer geogrid and an outer-layer geogrid, the space between the inner-layer geogrid and the outer-layer geogrid is filled with loose soil, and the loose soil, the inner-layer geogrid and the outer-layer geogrid are tamped together to form a rammed earth layer; the herbaceous plant layer comprises a planting soil layer laid on the outer geogrid, and herbaceous plants are planted on the planting soil layer. The slope protection device is used for protection of the abrupt slope under the heavy rainfall condition, and the purposes of controlling slope body shallow layer landslide and slowing down slope surface scouring erosion are achieved.

The invention discloses a construction device with a multidirectional road surface tamping function for highway engineering, and belongs to the technical field of highway engineering construction.The construction device comprises a box body, an earth ramming block is slidably connected to the side wall of the bottom end of the box body, a bottom cylinder is fixed to the bottom end of the earth ramming block, a sliding rod is inserted into the bottom cylinder, and a tamping plate is fixed to the bottom end of the sliding rod; an adjusting assembly is arranged between the bottom cylinder and the sliding rod, a suction assembly is arranged at the bottom of the box body, and a cleaning assembly is arranged at the front end of the box body; according to the device, the retractable amount of the tamping plate can be adjusted through the arranged adjusting assembly, so that the earth ramming strength is adjusted, an operator can adjust the earth ramming strength according to the loosening condition of the land, the use range of the whole device is widened, raised dust in the tamping process is absorbed and removed through the arranged suction assembly, and the dust removal efficiency is improved. Dust pollution on a construction site can be effectively reduced, and the working environment is improved, so that the health and safety of constructors are guaranteed.

The invention discloses a method for manufacturing a simulated earthen ruins rammed earth test wall based on original diseases, and relates to the field of earthen ruins protection and restoration. The method comprises the following steps: step 1, determining earthen archaeological site diseases to be researched and preparing materials; 2, mold assembling and disease marking are carried out; 3, layered ramming is conducted; step 4, crack disease processing; step 5, performing undercutting disease processing; 6, weathering disease processing; step 7, processing rain erosion diseases; and step 8, northwest environment simulation. The earthen archaeological site rammed earth wall is manufactured by integrating multiple disease collaborative simulation technologies of fissure, undermining, weathering and rain erosion, meanwhile, adaptability design of a strong wind erosion area, a strong sunshine area and a strong salinization area is made for northwest arid areas, and the method has the core advantages of disease reproduction authenticity, standardized grading, environment adaptability and the like; a scientific and reasonable technical means is provided for earthen archaeological site protection engineering, and a reliable test piece is provided for research and development of a protection technology.

The utility model discloses an antique palace wall rammed earth foundation for on-site entity display, which comprises a concrete cushion layer, the concrete cushion layer is provided with a plurality of upper and lower layers of rammed solidified clay, lateral closed glass and an antique black brick palace wall, and every two adjacent layers of rammed solidified clay are connected through an antique binder. The compacted and solidified clay is located between the lateral closed glass and the antique black brick palace wall, and top closed glass located above the compacted and solidified clay is arranged between the lateral closed glass and the antique black brick palace wall. The archaistic brick palace wall and palace wall rammed earth foundation combined entity display structure has the advantages that the archaistic brick palace wall and palace wall rammed earth foundation combined entity display structure is built on an archaistic excavation site or a park, and the original appearance of the archaistic brick palace wall and the original appearance of the rammed earth palace wall foundation can be restored to the maximum extent; and people can have a deeper understanding of manufacturing and construction of ancient black brick palace wall and rammed earth palace wall foundations.

The invention relates to the technical field of foundation rammed earth, and discloses a foundation rammed earth treatment device and method for building construction, and the foundation rammed earth treatment device comprises a clamping and disengaging assembly, a grinding device, a tamping device, a supporting device and a moving device. The grinding device drives the grinding shell to rotate through the clamping and disengaging assembly, the grinding shell drives the grinding blades to rotate, the grinding blades and the screening cylinder grind the backfilled soil, meanwhile, the grinding rotating wheel can roll on the upper surface of the supporting ring and drive the conical rotating wheel and the spiral blades to rotate, and therefore the efficiency of stirring and propelling the backfilled soil is improved. When the grinding shell rotates in the forward direction, the nut rotating disc can drive the tamping screw rod to be lifted upwards, when the tamping screw rod is lifted to the highest position, the tamping linkage plate can drive the clamping and disengaging clamping block to be disengaged from the grinding groove, then the tamping disc drives the tamping screw rod to freely fall, and the tamping screw rod drives the nut rotating disc and the grinding shell to rotate in the reverse direction; therefore, the secondary treatment function of the grinding device and the earth ramming function of the tamping device are achieved at the same time.

The invention relates to the technical field of cable trench soil construction equipment, in particular to tamping equipment for cable trench backfill, which comprises a machine body and telescopic drivers symmetrically arranged on two sides of the machine body, the other ends of the telescopic drivers are fixedly connected with a soil shoveling assembly, and the machine body is sequentially provided with a crushing assembly, a leveling assembly and a soil ramming assembly from front to back. One end of the telescopic transmission machine is movably connected with the machine body; the soil shoveling assembly comprises a rotatably arranged soil feeding mechanism, and the telescopic driver adjusts the distance between the soil shoveling assembly and the machine body through the action of a lead screw nut mechanism; the crushing assembly comprises two groups of parallel soil crushing pieces, the two groups of soil crushing pieces synchronously rotate in opposite directions, the soil ramming assembly comprises a rotating piece and four soil ramming units arranged in the circumferential direction of the rotating piece at intervals, and the four soil ramming units are matched with the rotating piece to sequentially reciprocate; according to the invention, backfilling and tamping can be synchronously carried out, the cable trench backfilling construction efficiency is improved, the backfilling is compact, and the labor intensity of workers is reduced.

The invention discloses a chitin-silicon-calcium-based modified material for rammed earth wall repair and a weather resistance evaluation method thereof, and belongs to the technical field of rammed earth wall repair, the chitin-silicon-calcium-based modified material comprises metakaolin, calcium oxide, quartz and chitin; the ratio of chitin to metakaolin to calcium oxide to quartz is 1: 1: 2: 4; the method comprises the following steps: pre-treating at the earlier stage of a test, evaluating freeze-thaw cycle performance, evaluating dry-wet cycle performance, evaluating salt corrosion resistance, analyzing association between a microstructure and a strength performance, and finally, revealing a material degradation rule and mechanism by combining scanning electron microscope observation, unconfined compressive strength test and crack rate analysis. When the freezing and thawing cycle number N is less than or equal to 5, the dry and wet cycle number I is less than or equal to 9, and the salt solution concentration c is less than or equal to 0.3 mol / L, the characteristics of freezing and thawing resistance, dry and wet resistance, salt erosion resistance and the like of the modified material are obviously improved; after the modified material is added, internal pores of plain soil can be filled, unconfined compressive strength of a soil body is enhanced, and long-term durability of the soil body is improved.

The invention provides a water-based rammed earth paint for an antique city wall. The water-based rammed earth paint comprises the following components: a main coating main material coating, a decorative layer transparent texture paint and a protective layer finish-coat paint, wherein the main material coating of the main coating comprises the following components: styrene-acrylic emulsion, modified color-selected snowflake white, coarse whiting, attapulgite, an auxiliary agent 1 and water; the decorative layer transparent texture paint comprises the following components: an acrylate copolymerized pure acrylic emulsion, a pigment, an auxiliary agent 2 and water; the protective layer finish-coat paint comprises the following components: acrylate polymerized pure acrylic emulsion, an auxiliary agent 3 and water; the modified color sorting snowflake white is obtained by reacting a modified silane coupling agent and color sorting snowflake white, and the modified silane coupling agent is obtained by modifying the silane coupling agent after copolymerizing oleic acid, hydroxypropyl acrylate and styrene. The color-selected snowflake white is modified, groups such as a long alkyl chain, polyacrylate, hydroxyl and a benzene ring are introduced, the compatibility with other components is enhanced, all the groups have a synergistic effect, and the comprehensive performance of the product is enhanced.

The invention provides combined hydraulic tamping construction equipment for widening an expressway, the combined hydraulic tamping construction equipment for widening the expressway comprises an earth rammer body and a tamping assembly mounted at the output end of the earth rammer body, and a retractable earth collecting assembly is rotatably arranged at the bottom of the tamping assembly; the soil collecting assembly is used for scraping edge soil to be collected towards the center, a rope assembly is further arranged on one side of the tamping assembly, and one end of the soil collecting assembly is fixedly connected with the output end of the tamping assembly through the rope assembly. According to the combined type hydraulic tamping construction equipment for widening the expressway, edge soil is collected through the soil collecting assembly, the tedious process of repeated cleaning and tamping after the soil is sputtered is avoided, and through the linkage design of the soil collecting assembly and the tamping assembly, the construction efficiency is greatly improved. And the time for compacting the soil body and treating the edge soil can be shortened in the tamping process, unnecessary repeated operation is reduced, and the construction efficiency is further improved.

The intelligent multi-working-condition earth ramming robot comprises main machine bodies serving as a main body, a rack is arranged on the main machine bodies, a plurality of threaded holes are formed in the rack, and the left main machine body and the right main machine body are connected into a whole in the mode that the threaded holes in the rack of the left main machine body and the right main machine body are matched with connecting steel bars. An equipment connecting pipe mounting seat is connected to the outer surface, between the left rack and the right rack, of one side of the racks, an equipment connecting pipe is rotationally connected to the equipment connecting pipe mounting seat, a plurality of equipment connecting holes are formed in the equipment connecting pipe, and equipment connecting rods penetrate out of the equipment connecting holes and are fixed through bolts and nuts. And the construction equipment is connected with the equipment connecting pipe through the equipment connecting rod. The multi-equipment intelligent rammed earth construction under various working conditions can be achieved, the rammed earth on the flat ground and the rammed earth with the height difference during pipe ditch backfilling are well performed, manpower and material resources are effectively saved, and the whole rammed earth construction is more intelligent.

The invention relates to a process for reinforcing an ancient building rammed earth wall by combining a wood structure and bamboo reinforcement. Before reinforcement, a certain number of holes are drilled in the existing rammed earth wall and loose soil on the wall surface is removed. Then, an interface agent is sprayed on the surface of the existing rammed earth wall, the surface of the bamboo reinforcement net and the wood structural columns in contact with the wall surface. The wood structural columns and the bamboo reinforcement net are fixed to the existing rammed earth wall by through-bolts, and the wood structural columns and the bamboo reinforcement net are connected by bamboo nails. Then, soil grouting material is used to fill the gap between the wood structural columns and the existing rammed earth wall. Then, the surface layer of the newly added rammed earth wall is rammed until below the wood ring beam. Finally, the wood ring beam coated with the interface agent is installed, and the surface layer of the newly added rammed earth wall is located below the wood ring beam. The top ends of the wood ring beam and the wood structural columns on both sides, i.e., the intersection nodes of the wood structural columns and the wood ring beam, are connected by flat irons. The wood ring beam and the wood structural columns on both sides form a door frame shape, which can have good bearing capacity and earthquake resistance and can achieve the effect of preserving the original historical style of the building.

The utility model relates to the technical field of water conservancy construction, and discloses a dam reinforcing device for water conservancy project, which comprises a rammed earth vehicle and a lifting assembly mounted in the rammed earth vehicle, and further comprises a moving plate mounted on one side of the lifting assembly, a connecting shell is slidably connected to the surface of one side of the moving plate, and a mounting groove is formed in the bottom of the inner wall of the connecting shell; a limiting mechanism is mounted in the mounting groove, a fixing block is mounted in the limiting mechanism, a pull rod is mounted on one side of the limiting mechanism, and a fixing shell is fixedly connected to one side of the surface of the connecting shell. Through cooperative use of the limiting mechanism, the fixing block, the pull rod, the connecting shell and the positioning mechanism, the workload of workers is reduced, the surfaces of rammed earth blocks are cleaned under cooperation of the fixing frame and the cleaning mechanism, the device is suitable for the rammed earth blocks of different sizes, and the problems that according to existing dam reinforcing equipment, rammed earth block replacement is tedious, and the working efficiency is high are solved. And the rammed earth blocks cannot be cleaned.

The utility model discloses a load-bearing short-limb rammed earth wall structure which comprises a plurality of load-bearing short-limb rammed earth wall bodies, the load-bearing short-limb rammed earth wall bodies are of modularized L-shaped structures, the load-bearing short-limb rammed earth wall bodies are arranged side by side or symmetrically, windows and equipment wall bodies are arranged between the load-bearing short-limb rammed earth wall bodies, and electromechanical equipment is arranged at the positions of the windows and the equipment wall bodies. The sizes of the axes of the two sides of the bearing short-limb rammed earth wall body of the L-shaped structure are larger than or equal to 0.6 m. By means of a modularization mode, the short-limb bearing rammed earth wall is separated from the electromechanical embedded pipeline, the wall body is freely combined to form a building plane, and the construction cost per square meter is reduced by 25%.

The invention discloses a small tamping device for a building foundation, and belongs to the technical field of building engineering. The tamping device comprises a movable frame, a sleeve fixedly arranged on the movable frame, and a tamping hammer which penetrates through the bottom of the sleeve and is connected into the sleeve in a sliding mode. The driving structure is arranged on the movable frame, connected with the sleeve and used for driving the ramming hammer to repeatedly ascend and descend for ramming earth; and the spraying structure is arranged on the movable frame and used for reducing dust. According to the small tamping device for the building foundation, the transmission assembly is connected with the driving structure, spraying water in the water bucket is driven to be sprayed out through the water spraying opening of the spraying pipe only when the tamping hammer ascends, by means of the intermittent spraying mode, continuous water spraying is reduced, so that the water content of local soil of the dry foundation exceeds the optimal compaction interval, the tamping compactness is guaranteed, and the tamping efficiency is improved. Meanwhile, the opening and closing plate is arranged at the water spraying opening and is sealed when water is not sprayed, dust is effectively prevented from entering, and blockage is reduced.

The invention relates to the technical field of building physics and artificial intelligence crossing, and discloses a traditional village dwelling thermal performance prediction system based on deep learning, comprising a data acquisition module for acquiring solar radiation, wind speed and direction, internal and external pressure difference and indoor and outdoor temperature; the radiation decoupling network module is used for predicting the net radiation heat flux of the outer surface according to the solar radiation, the sun position and the component posture; the microclimate permeation network module is used for predicting a convective heat transfer regulation factor according to the pressure difference, the wind and the opening state; the implicit state network module adopts a circulation structure and introduces an implicit thermal state vector to represent the thermal inertia of the enclosure structure; and an indoor thermal environment integration module that integrates the convective heat flux based on the heat balance and outputs an indoor air temperature predicted value. According to the system, through decoupling modeling of radiation, permeation and heat transfer of the enclosure structure, prediction interpretability of the indoor thermal environment of a traditional dwelling is improved, and the system is suitable for building scenes which are built with non-standard materials such as rammed earth and depend on natural ventilation.

The utility model provides a rammed earth wall corner reinforcing stone improvement structure which comprises a rammed earth wall body, an attachment gauze element, a bonding concrete layer, a protective base layer block, an attachment layer and decorative rubble stone, the attachment gauze element is fixedly installed on the surface of the rammed earth wall body in an attached mode, and the surface of the attachment gauze element is coated with the bonding concrete layer. The protective base layer block is adhered to the surface of the adhesive concrete layer and is fixedly connected with the rammed earth wall body; the adhesion layer is coated on the surface of the protective base layer block, and the decorative rubble is adhered to the surface of the adhesion layer; due to the arrangement of the protective base layer block and the decorative rubble stone, the structure is high in pulling strength, strong in anti-scouring capacity, attractive in appearance and high in construction efficiency, and the quality is convenient to control.

The utility model relates to the technical field of rock and soil tamping, one embodiment of the utility model provides a rock and soil tamping device for geotechnical engineering, the rock and soil tamping device comprises a base, a fixing frame, a tamping mechanism and a reinforcing assembly, a plurality of driving wheels are mounted on the base, a mounting groove is formed in the base, the bottom end of the fixing frame is fixedly connected with the inner wall of the mounting groove, and the bottom end of the fixing frame is fixedly connected with the inner wall of the mounting groove; the tamping mechanism is arranged in the fixing frame and used for continuously tamping rock soil, and the reinforcing assembly is arranged on the outer side wall of the fixing frame and used for reinforcing the stability of the base and the rock soil. By means of the technical scheme, the technical problems that in the automatic and continuous compaction process of rock and soil in the prior art, the earth ramming plate and the rock and soil collide, the earth ramming plate and the rock and soil can generate opposite impact force, and the whole device may shake and is insufficient in stability are solved.

The present invention relates to the technical field of river channel slope protection, specifically to a river channel ecological slope protection structure of a water conservancy project, including a support base, the support base is arranged on a rammed earth layer, and the support base is provided with foundation piles inserted into the rammed earth layer, and the upper end of the support base is connected to a top support seat through a support column. The river channel ecological slope protection structure can not only use the support base to effectively protect the river channel to prevent rainwater from directly scouring the rammed earth layer to cause soil and water loss, but also use a reservoir to store water flow to prevent green vegetation from dying due to lack of water, and at the same time, it can also use a first water pump, a second water pump and a water exchange channel to automatically maintain the water level of the reservoir and the humidity in the planting filler, so it can effectively play a protective role on the river bank and a maintenance role on the green vegetation. It solves the problem that the existing river channel ecological slope protection has poor protection ability and lacks water storage and maintenance functions for green vegetation, and can effectively reduce the maintenance pressure of the river channel ecological slope protection.

Disclosed herein is a permanent rammed earth formwork-façade, including two parallel side panels, a plurality of galleys and / or rebars fastened transversally between the two side panels interconnecting the two side panels to each other, and a plurality of Ω-shaped fasteners fastening the plurality of galleys between the two side panels and receiving rebars connecting side by side adjacent side panels of two or more of the permanent rammed earth formwork-facades in large formwork-facades. Each side panel includes a double-layered rammed earth wall reinforced by a mesh network there inside, a barbed wire woven into the mesh network, a plurality of rebars fastened to the mesh network, and a plurality of L-shaped anchor bolts fastened to the mesh network, a respective Ω-shaped fastener, and a respective rebar. Each side panel further includes a water-proof thermal insulator layer coated on an interior surface of the double-layered rammed earth wall.

A predictive method for quantifying the degree of erosion damage in rammed earth cultural relics, relating to the field of cultural relic protection, involves acquiring 3D laser point cloud data and close-up photogrammetric 3D model data of the rammed earth relics; fusing the 3D laser point cloud model and the close-up photogrammetric 3D model to construct a three-dimensional model of erosion damage in the rammed earth relics; extracting quantitative indicators of erosion damage development based on the three-dimensional model of erosion damage in the rammed earth relics, constructing and optimizing a predictive model of erosion damage development; and generating and outputting a quantitative report on the degree of erosion damage development in the rammed earth relics. This invention combines 3D laser scanning and close-up photogrammetry, designs differentiated flight paths for different height areas, aligns the cross-sectional contours of different models based on Fourier description, and uses Poisson surface reconstruction technology combined with a hole-filling algorithm to complete the missing parts of the model, intuitively presenting the spatial distribution and morphological characteristics of erosion damage, quantifying the changing patterns of erosion damage over time, and promoting a shift in protection work from passive restoration to proactive prevention.

The application relates to the technical field of foundation ramming, and discloses a foundation ramming treatment device and method for building construction, which comprises a clamping and detaching assembly, a grinding device, a ramming device, a supporting device and a moving device. The grinding device drives the grinding shell to rotate through the clamping and detaching assembly, the grinding shell drives the grinding blade to rotate, the grinding blade is rolled and pressed against the backfill soil together with the screening cylinder, meanwhile, the grinding runner also rolls on the upper surface of the supporting ring and drives the conical runner and the spiral blade to rotate, so that the efficiency of stirring and pushing the backfill soil is improved. When the grinding shell rotates forward, the nut rotating disc drives the ramming screw rod to be lifted upward, when the ramming screw rod is lifted to the highest position, the ramming linkage plate drives the clamping block to be separated from the grinding groove, then the ramming disc drives the ramming screw rod to freely fall, the ramming screw rod drives the nut rotating disc and the grinding shell to rotate reversely, so that the secondary treatment function of the grinding device and the ramming function of the ramming device are realized simultaneously.