1061results about "Embankments" patented technology

The invention relates to the technical field of earthwork compaction, and discloses a pipe ditch backfilling and tamping system based on excavator modification. The system comprises an earthwork condition dynamic sensing module which captures a bucket tooth track, a hydraulic oil cylinder pressure pulse and a soil mass vibration spectrum in real time and combines a historical database to construct a model to output a theoretical compaction degree curve; a multi-source compaction difference analysis module performs three-dimensional deviation detection on the theoretical curve and the actual settlement volume data to generate a construction grid-level compaction difference tensor; the defect area association mapping module inputs the tensor into a geological topology analysis network, generates a loose defect propagation path probability cloud chart by combining soil parameters and identifies weak sections; and the tamping strategy self-adaptive configuration module automatically sets operation parameters according to the cloud picture, activates high-precision monitoring on a high-probability defect section, and applies a dynamic excitation force test on adjacent grids, so that intelligent management and control of the backfilling and compacting process are realized.

A pre-disintegrated soft rock embankment structure based on spatial function zones and a design method thereof are provided. The embankment structure includes an embankment shear control zone, an embankment settlement control zone, and an embankment shear-settlement control zone. The embankment shear control zone is a zone in which a shear failure ratio is greater than a predetermined value. The embankment settlement control zone is a filled zone right below a top surface of an embankment. The embankment shear-settlement control zone is an intersection of the embankment shear control zone and the embankment settlement control zone. The provided structure and method improve the shear strength, stability, and durability, reduce footprint, shorten a settlement duration after construction, and solve engineering problems such as low slope ratio and large deformation of an embankment due to a long period of subsequent disintegration in the prior art.

The invention discloses a backfill soil foundation compaction quality on-site detection method and system. The method comprises the steps that instantaneous acceleration signals of a vibrating wheel in the soil compaction construction process are collected in real time through a three-axis acceleration sensor; the acceleration signal comprises a three-axis acceleration component; recording the number of construction times through construction equipment, collecting position information of a construction area by using a GPS (Global Positioning System), and synchronously binding the acceleration signal with the number of construction times and the position information through timestamps to form a data set corresponding to the position of the construction area; performing spectral analysis on the acceleration signal in the data set, and extracting a dominant frequency amplitude and a first harmonic amplitude to generate a filtered acceleration signal; the filtered acceleration signals are input into a training single-hidden-layer BP neural network, and the soil dry density is calculated in combination with the number of construction times; based on the ratio of the calculated soil dry density to the standard maximum dry density, the soil compactness in the construction area is determined in combination with the position information, and a construction area compactness distribution diagram is generated through the upper computer to optimize the construction strategy.

A basement roof lawn vegetation construction method under complex working conditions comprises the steps of implementing complex basement roof modeling and implementing lawn vegetation above a basement roof. The complex basement top plate modeling method comprises the steps of a flat site large-area backfill construction method, a step-shaped basement top plate backfill construction method and a basement top plate large-gradient inclined plate earthwork backfill construction method. The step of implementing the lawn vegetation above the basement top plate comprises the steps of cross construction, backfilling and excavation, slope toe construction and solid soil area construction. According to the technology, the problem of construction of greening in a complex shape on the basement roof of a project is solved, particularly the problem that more slope roofs in a mountaintop shape or roofs in a stepped rice field shape exist is solved, the problem that backfill soil construction is difficult after the basement roof is complex in shape is solved, the stability of backfill soil after backfill soil is improved, and the construction period is shortened. And the concept of green building is practiced.

The invention discloses a double-row steel sheet pile and soil core combined cofferdam structure and a construction method. The double-row steel sheet pile and soil core combined cofferdam structure comprises double-row pile connecting units, steel sheet piles, brackets, steel enclosing purlins, dredger fill and drainage plates. Each double-row pile connecting unit is formed by welding an upper connecting plate between two connecting steel sheet piles; the double-row pile connecting units are inserted into a soil body, and a steel sheet pile is inserted between every two double-row pile connecting units; corbels are welded to the outer sides of the steel sheet piles, steel enclosing purlins are arranged on the corbels, and the steel enclosing purlins, the steel sheet piles and the corbels are connected in a welded mode; dredger fill is filled between the two rows of steel sheet piles and is compacted by a hammer-attached soil squeezer; a drainage plate is inserted into the dredger fill; earth excavation is conducted on the side, close to water, of the double-row pile cofferdam to form a foundation pit; when shallow excavation is conducted on the foundation pit, no sand filling pipe bag is arranged; when the foundation pit is deeply excavated, a slope section is reserved; sand filling pipe bags are arranged on the outer side of the slope section and stacked on the outer side of the slope section in a staggered mode. The hammer-attached soil squeezing device comprises an attached hammer, a pressing plate, water permeable holes, geotechnical cloth and a brush.

The invention provides a working face limited narrow fertile groove flow state solidified soil backfill construction method, and belongs to the technical field of flow state solidified soil application construction.The method comprises the steps that a backfill area is divided into partition blocks not exceeding 10 m and backfill sections with the thickness being 1 m, then an optimal backfill path is designed, and a cross path network is established to guarantee the filling uniformity; a multi-branch pumping system is adopted to convey the flow-state solidified soil, and flow velocity and pressure parameters are calculated by applying a hydrodynamic equation set. Construction is carried out according to the alternate sequence of 1-3-5-7 and 2-4-6-8 through a jump type pouring method, and the slump of the mixture is intelligently monitored and controlled to be 180-240 mm. Through penetration type electronic compactness detection, the unconfined compressive strength within 28 days is finally 0.8-1.5 MPa, the accumulative settling volume is controlled within 10 mm, high-quality control over backfilling of the narrow fertilizer groove space is achieved, and the technical problem that uniform backfilling construction of the flow-state solidified soil is difficult to control under the condition that the narrow fertilizer groove space is limited is solved.

The invention belongs to the technical field of steel sheet piles, and discloses a steel sheet pile for compensating stratum loss during pile pulling and a construction method.The steel sheet pile comprises a plurality of steel sheet pile units, and each steel sheet pile unit comprises a plurality of steel sheet piles; the foundation pit sides of the steel sheet pile units are connected with a plurality of compensation bags, and grouting systems are arranged on the foundation pit sides of the compensation bags. The foundation pit side of the steel sheet pile is coated with viscous grease, the side, facing the steel sheet pile, of the compensation bag is coated with pressure-sensitive adhesive, and the compensation bag is temporarily connected with the steel sheet pile; the grouting system comprises a main grouting pipe, the bottom of the main grouting pipe is connected with a horizontal grouting pipe, the side, facing the steel sheet pile, of the horizontal grouting pipe is connected with a plurality of flow dividing pipes, and the flow dividing pipes correspond to the compensation bags. A vertical branch pipe is upwards separated from the middle position of the flow dividing pipe, and is connected with a grouting connector at the bottom end of the corresponding compensation bag; the tail end of the flow dividing pipe is downwards divided into an inclined grouting pipeline, and the inclined grouting pipeline faces the lower portion of the steel sheet pile. The technical problem that filling is not timely due to the fact that grouting pipes are installed to fill gaps after steel sheet piles are pulled out in the prior art is solved.

The invention discloses an in-situ monitoring method for the soil consolidation and compression process of a loess fill foundation. The in-situ monitoring method comprises the following steps: 1, calibrating a TDR (Time Domain Reflectometer) probe; 2, excavating an embedding pit, a wire groove and a wire conduit embedding groove; 3, a soil pressure meter and a TDR probe are installed, and soil is taken; 4, arranging the cables; 5, backfilling the burying pit, the wiring trough and the wiring tube burying groove; 6, measuring data of the installed soil pressure gauges and the TDR probes, and installing the soil pressure gauges and the TDR probes on the upper layer in the newly backfilled soil layer; seventhly, the sixth step is repeated for multiple times till the designed elevation is achieved through backfilling; 8, data are collected and recorded at fixed time intervals, the water content and the dry density of each layer of filling soil of the filling body are calculated, and then the compression coefficient, the compression modulus and the settling volume of the layer of filling soil are calculated. According to the method, the process that the soil volume is reduced and the density is increased due to the fact that the arrangement compactness degree between soil particles is increased and the porosity is reduced when the filled foundation soil is subjected to the external load effect is reflected from the angle of soil mechanics.

The invention provides a high and steep slope reinforcing system with a slope crest adjacent to a post-built municipal pipe gallery and a construction method of the high and steep slope reinforcing system. The reinforcing system comprises an original side slope lattice anchor supporting structure, a pipe gallery structure, a foam concrete backfill structure located on the side, close to the original side slope surface, of the pipe gallery structure, a row of newly-added anchor rods / cables constructed below the first row of original anchor rods / cables below the slope top, and a row of miniature steel pipe piles constructed below the outer side, close to the side slope surface, of the pipe gallery structure. A first row of anchor rods (cables) of an original removed side slope support are replaced by newly added anchor rods or anchor cables, and the whole steel pipe piles are located in the foam concrete to form a miniature pile retaining wall structure. The overall stability of the high and steep slope with the slope crest adjacent to the pipe gallery is greatly improved, and displacement of the slope crest adjacent to the pipe gallery is effectively controlled; the settlement of the slope crest adjacent to the pipe gallery is effectively controlled in a design and standard range; meanwhile, the foam concrete structure is used for filling the pipe ditch (groove), so that filling pressure can be reduced, and compactness and strength are guaranteed.

The invention provides a method for preparing a carbon sequestration underground cemented filling material by carbonizing and activating all solid wastes. Firstly, alkaline solid waste and water are compounded to obtain solid waste slurry, and an inducer and the solid waste slurry are stirred at a low speed to obtain first slurry; secondly, under the condition of continuously introducing carbon dioxide, carrying out wet grinding treatment on the first slurry to obtain second slurry, and then adding a stabilizer to continuously carry out wet grinding treatment to obtain third slurry; and finally, uniformly mixing the third slurry, semi-hydrated phosphogypsum, iron tailings and water, and vibrating for multiple times to obtain the carbon sequestration underground cemented filling material. The carbon sequestration rate of the prepared carbon sequestration underground cemented filling material can reach 12.2%-20.4%, the softening coefficient can reach 0.86, and the carbon sequestration underground cemented filling material meets the requirements of tailing concrete of C3 strength grade, F3 expansion degree and S1 shrinkage rate in JC / T 2478-2018 Mine Goaf Filling Tailing Concrete, and has a wide application prospect as a mine and underground filling material.

The invention provides a large-scale photovoltaic power station field construction earthwork balance and transportation path intelligent planning method, and relates to the technical field of photovoltaic power station construction, and the method comprises the steps: obtaining construction field topographic data, dividing grids, collecting soil physical characteristic data, determining an excavation sequence and process parameters, calculating the workload, and building an earthwork allocation scheme; monitoring a grid bearing state in real time, and when a threshold value is reached, marking an unloading prohibition area and selecting an alternative area; monitoring the stable state of the road section, marking as a temporary control area when the stable state is lower than a threshold, and screening a standby path; and dynamically updating the planning scheme based on the information. According to the method, the earthwork resources are optimally configured, the construction efficiency is improved, and the safety risk is reduced.

The invention discloses a foundation structure underpinning construction method for a shield tunnel to penetrate through an upper building pile foundation, and belongs to the technical field of tunnel engineering pile foundation underpinning. The method comprises the following steps that grouting reinforcement is conducted on a foundation below a building foundation in a tunnel underpass area, and a tracking grouting condition is reserved on the edge of an original bearing platform; shallow foundation pit excavation is adopted, and a beam plate type raft foundation is constructed; steel supports are additionally arranged around first-layer columns of the building to serve as temporary supports; shield tunneling construction is carried out; and tracking grouting is conducted according to the monitoring result, and finally the foundation pit is backfilled. The problems that when a traditional shield tunnel penetrates through a building under the ground, the tunnel burial depth is changed or a house is directly dismantled, so that additional cost is increased, and the construction period is delayed are solved; the influence of pile grinding of the shield tunneling machine on a building above can be reduced; and house demolition is not needed, only shallow foundation pit operation is carried out, the safety of a tunnel lining structure and an upper building is protected, and construction continuity is guaranteed.

The invention discloses a waste pipeline filling material, a preparation method and an application method, the waste pipeline filling material comprises a composite waste curing agent and mucky soft soil; the composite waste curing agent is formed by compounding dry powder and water; the dry powder comprises slag powder, carbide slag and desulfurized gypsum. The waste pipeline filling material disclosed by the invention is prepared by completely adopting the solid wastes, namely the slag powder, the carbide slag and the desulfurized gypsum as the curing agent to cure the sludge soft soil, has the advantages of wide raw material source, simplicity in preparation, high strength, low cost and the like, can fully recycle the solid wastes, and is low in energy consumption, low in emission and suitable for industrial production. And urban waste pipelines can be effectively filled, surface collapse accidents caused by structural damage of the urban waste pipelines are avoided, and positive significance is achieved for the ecological environment and urban development.

The invention relates to the field of soft soil area retaining wall design, and discloses a soft soil area roadbed slope self-anchored light soil retaining wall which comprises a first foundation, a second foundation is placed on the first foundation, and a road surface is laid on the second foundation; the two retaining wall bodies are symmetrically arranged and are piled on the two sides of the first foundation and the two sides of the second foundation; the concentration plate is arranged on the retaining wall main body, and one end of the concentration plate extends into the foundation I and the foundation II; the multiple grids are arranged, the corresponding grids are connected with one another, and the grids are arranged in the second foundation and the retaining wall body. Additional reinforcement treatment on the foundation is reduced, meanwhile, through the combined action of various mechanisms, a good meshing effect can be formed, displacement of soil particles is controlled, and the overall strength and stability of the roadbed and retaining wall structure are improved; the mutual traction effect of the roadbed and the retaining wall is increased, and the anti-overturning and anti-sliding capacity of the retaining wall is improved.

The invention relates to the technical field of building construction, and discloses a backfill construction method in a restricted space, which comprises the following steps: S1, acquiring three-dimensional structure information of the restricted space, determining boundary conditions of a backfill area, and arranging a conveying system; s2, sensor data are arranged in a conveying system and a backfilling area, and the data are transmitted to a central controller; s3, based on the principle of material mass conservation, a mathematical model of backfill material conveying and diffusion is established; s4, on the basis of the optimal control theory, the optimal backfill material conveying flow is solved by taking minimization of the backfill material distribution error and the conveying energy consumption as targets; s5, comparing the optimal backfill flow with the actual flow measured by the sensor; and S6, the conveying system is disassembled, and the site is cleaned. According to the method, the flow characteristics of the backfill material in the limited space are described by constructing the conveying kinetic model and combining the material conveying equation and the diffusion equation, and accurate simulation and optimization of the conveying process of the backfill material are achieved.

The invention belongs to the technical field of bridge engineering, and particularly relates to a deepwater lock catch steel pipe pile cofferdam construction method which comprises the following steps: construction preparation: delimiting a steel pipe pile cofferdam area; drilling and groove milling are carried out along the steel pipe pile cofferdam area to form a cofferdam groove, and sandy soil is backfilled in the cofferdam groove; a guide device is lowered along the bored pile steel casing, and steel pipe piles are inserted one by one to form a steel pipe pile cofferdam; a plurality of inner supporting systems are assembled; a covering layer is excavated on the inner side of the steel pipe pile cofferdam to the designed elevation; underwater grouting is conducted on the inner sides and the outer sides of the steel pipe piles located in the cofferdam grooves; the multiple inner supporting systems are sequentially lowered to the designed elevation; a gap between each enclosing purlin structure and the steel pipe pile is checked; the bottom of the foundation pit is cleaned, water is pumped layer by layer, and concrete is poured between the enclosing purlin structure and the steel pipe piles till water pumping in the cofferdam is completed; the bearing platform / pier body is constructed, and backwater of the corresponding inner supporting systems is sequentially removed along with construction of the bearing platform / pier body till water flows out of the bearing platform / pier body; and dismantling the steel pipe pile cofferdam.

The invention discloses a river and lake sludge dewatering and curing ecological bank protection process. Ecological bank protection construction is achieved through in-situ resourceful treatment of sludge. The process comprises the following steps: firstly, pressing natural wood piles into the bottom of a bank slope to form a comb-shaped anti-sliding bent frame, and paving high-strength permeable geotextile pipe bags between the piles and the bank slope; bottom mud is extracted by adopting mud suction equipment, is modified by a flocculating agent and then is injected into a tubular bag in a layered manner, and gravity dehydration is completed by utilizing the permeable characteristic of tubular bag fabric; the tops of the pipe bags are backfilled with stacking materials for graded stacking, and solidification is accelerated through external pressurization to form a stable bank protection filling body; and finally, the surface layer is covered with planting soil, moisture-proof plants are planted, and the composite revetment with the permeation drainage function and the ecological function is constructed. Compared with a traditional technology, the technology effectively solves the problems of bottom mud outward transportation pollution and resource waste through triple synergy of geotextile tube bag gravity dehydration, natural timber pile stability enhancement, building body strength improvement through graded stacking and loading and the like, and the formed revetment has ecological restoration and landscape functions. The method is suitable for ecological restoration of rivers and lakes, wetland reconstruction and waterfront environment treatment, and has the comprehensive advantages of convenience in construction, environmental friendliness, economy and high efficiency.

The invention provides a high fill roadbed settlement prediction method, and belongs to the technical field of engineering construction.The method comprises the steps that firstly, a large test box interface test system is established, and a 4 * 4 sensor monitoring network is arranged on the interface of filler and a foundation soil layer; the influence of different parameter combinations on interface mechanical properties is researched through a parameter change experiment system, and a parameter database is established; obtaining actual measurement data of typical engineering and determining a calibration coefficient; establishing an interface element model, and obtaining an interface friction angle, cohesion and rigidity parameters; calculating the deformation of each layer by adopting a layered accumulation method; introducing a time effect correction factor to consider consolidation characteristics; the slip influence is evaluated through an interface slip test, and the prediction deviation caused by neglecting the interface effect in a traditional method is corrected; and finally, constructing a deep learning prediction model, and verifying prediction precision and reliability through actually measured data.

A side grip pile driver for driving elongated objects into a ground surface comprising: a body for attaching the pile driver to a working machine; a first and second jaw members each jaw member having a clamping interface for clamping onto the side of an object to be driven; and a driving means arranged to move at least one of the jaw members, wherein each jaw member has a jaw arms and a gripping head, wherein the jaw arm is attached to the body and the gripping head, the gripping head providing the clamping interface, the jaw arm being attached to the gripping head via an elastomer member; wherein at least one of the gripping heads of the jaw members comprises a vibrator device for vibrating the gripping head such that the gripping head is couplable to the object in vibratory engagement.

The invention relates to a cable protection pipe channel and a construction method thereof. The cable protection pipe channel is used for providing an arrangement space for the cable protection pipe combination body in the length direction of a cable and comprises two gravity type cement-soil walls, a foundation trench, a cushion layer, a backfill layer formed by a premixed flow state solidified soil fertilizer groove and a ground surface recovery layer. The two gravity type cement-soil walls are oppositely arranged and extend in the length direction of the cable, the foundation trench is formed between the two gravity type cement-soil walls and extends in the length direction of the cable, the cushion layer is laid at the bottom of the foundation trench, the cable protection pipe combination body is arranged on the cushion layer, and the backfill layer is filled in the foundation trench and completely covers the cushion layer and the cable protection pipe combination body. And the ground surface recovery layer is filled in the foundation trench and completely covers the backfill layer. The construction space can be reduced, waste of materials and resources is reduced, the construction difficulty is lowered, and potential quality hazards and potential safety hazards are reduced.

The invention relates to a green low-carbon foundation reconstruction technology on an old pile site and a construction method. The green low-carbon foundation reconstruction technology comprises the following steps that old piles which need to be pulled out and old piles which can be recycled are determined through pile foundation detection; in combination with the characteristics of a stratum and a pile foundation, an optimal pile foundation pulling-out technology is selected to pull out an old pile; mgO-based carbon sequestration soil is adopted for backfilling of the pull-out holes, and a large amount of CO2 is injected through a spiral breather pipe to conduct carbonization reinforcement on a backfilled body; according to the pile foundation configuration principle and the load distribution condition of the upper layer structure, the position of a new pile is determined, and the foundation reinforcing effect of a backfill body is fully exerted; site surface soil is cleaned, and new and old pile heads are cleaned; and finally, a cushion layer and a raft are constructed and poured, and foundation construction is completed. According to the construction method, old piles are reused, the number of driven new piles can be reduced, the foundation manufacturing cost is saved, the construction period is shortened, resource waste caused by pulling out the old piles is avoided, the influence on the environment is reduced, and the positive effects of absorbing industrial solid waste, storing CO2 and improving and reinforcing a soil body are achieved.

The invention belongs to the technical field of solid waste recycling and controllable low-strength material production, and particularly discloses a method for preparing a controllable low-strength material from lithium slag and shield muck. The controllable low-strength material with the fluidity larger than 170 mm and the 28d unconfined compressive strength of 0.3-8 MPa is successfully developed by taking the lithium slag instead of traditional cement as a cementing material, taking the shield muck as a fine aggregate and taking the quicklime as an alkaline activator and adding a polycarboxylic acid type high-efficiency water reducing agent to adjust the fluidity through reasonable proportioning, and the controllable low-strength material with the fluidity larger than 170 mm and the 28d unconfined compressive strength of 0.3-8 MPa is prepared. Under the condition that vibration is not needed, narrow construction areas can be automatically filled, and most backfill projects are met. The cement-free cementing material developed by exciting the lithium slag through the alkaline exciting agent can replace cement, the material cost is effectively reduced, on the other hand, a large amount of lithium slag and shield muck are secondarily utilized, solid waste recycling is promoted, environmental pollution is reduced, and high economic benefits and environmental benefits are achieved.

The utility model discloses a landfill rain and sewage diversion blocking structure, and relates to the technical field of landfill rain and sewage diversion blocking, the landfill rain and sewage diversion blocking structure comprises a slope and a valley-type refuse landfill arranged on one side of the slope, the valley-type refuse landfill comprises a non-landfill area and a landfill area, a groove is formed between the non-landfill area and the landfill area, and the slope is arranged in the groove. The non-landfill area is arranged between the groove and the slope, a concrete bottom plate is poured on the inner bottom face of the groove, a flow dividing blocking structure is arranged in the middle of the upper surface of the concrete bottom plate, and flow dividing channel structures are arranged on the left side and the right side of the flow dividing blocking structure. Through cooperation of the structures, rainwater accidentally flowing into the separation dam can be led out, the situation that rainwater in the separation dam overflows to damage the diversion blocking structure is prevented, and therefore the rainwater separation blocking effect of the diversion blocking structure is guaranteed, the amount of rainwater mixed into a landfill area is reduced, and then the sewage treatment amount is reduced; and the rain and sewage diversion blocking effect is improved.

The invention discloses a fluid-state curing regenerated mixture, a preparation method and application of the fluid-state curing regenerated mixture in rapid repair of highway subgrade water damage, and relates to the technical field of building materials, the fluid-state curing regenerated mixture comprises the following raw materials by weight: 12%-20% of a cementing material, 20%-40% of redundant soil, and 40%-60% of graded aggregate; the preparation method comprises the following steps: firstly, carrying out processes of sorting, impurity removal, crushing, screening and the like on the building solid wastes to respectively obtain graded aggregates and redundant soil with different particle sizes; then blending the crushed graded aggregate and redundant soil according to a proportion, and carrying out primary mixing to obtain a mixture; and finally, blending the mixture with a cementing material in proportion, adding water, and carrying out secondary mixing, so as to obtain the flow-state cured regenerated mixture. According to the flow-state curing regenerated mixture, building solid waste is used as regenerated aggregate, waste concrete, tiles and the like are converted into high-performance engineering materials through scientific proportioning and a curing process, and the resource utilization rate of the building waste is maximized.

The invention discloses a treatment method for preventing traceability erosion of a ditch head, and relates to the technical field of ecological treatment. Earth excavation is carried out, layer-by-layer slope cutting and order building treatment is carried out on the ditch slope from near to far away from the ditch head according to the preset gradient, and multiple stages of side slopes and multiple platforms are formed; earthwork backfilling is carried out, soil obtained after layer-by-layer slope cutting and step building treatment is stacked at the bottom of the ditch head, the soil stacked at the bottom of the ditch head is rolled to form a ditch channel, and the inclination angle between the ditch channel and the bottom of the ditch head ranges from 10 degrees to 15 degrees; soil covering and greening are conducted, soil covering is conducted on the channels, the multiple stages of side slopes and the multiple platforms through surface soil, multiple spruces are planted on the channels and the multiple platforms correspondingly, and high wheatgrass and ryegrass are sown on the slope surfaces of the multiple stages of side slopes in a mixed mode correspondingly; building a water retaining wall; and concealed pipes are arranged. In cooperation with water and soil conservation plant planting, the ditch bottom scour prevention and slope greening engineering is added, and a ditch head treatment mode integrating the landscape improvement function and the water and soil conservation function is formed.

The invention discloses a tightening angle waterproof structure and a construction method thereof, a building main body structure comprises a basement top plate, a building base outer wall, a cantilever plate and a cantilever plate reverse ridge which are connected in sequence, and the waterproof structure comprises an internal corner waterproof additional layer, a basement top plate waterproof layer and a building base outer wall waterproof layer. The protection structure of the waterproof structure comprises a concrete waterproof protection layer, a brick wall, a concrete gap and an apron which are arranged in sequence. The waterproof effect of the basement bottom internal corner is ensured, the firmness and waterproof leakproofness of the closing opening of the cantilever plate reverse ridge side face waterproof structure are ensured, and the waterproof structures on the top face of a basement top plate, the side face of a building base outer wall, the bottom face of a cantilever plate and the lower portion of the side face of the cantilever plate reverse ridge can be completely and continuously attached, covered and protected.

The invention provides a hydraulic reclamation area storage yard foundation treatment construction method which comprises the steps that a treatment area is divided into a consolidated hydraulic reclamation sand area, a storage sand area and a new hydraulic reclamation sand area according to the formation time and compactness difference of strata, a three-dimensional drainage system is laid in the new hydraulic reclamation sand area and comprises a horizontal permeable gabion wall and a vertical drainage plate, and a gravity drainage channel is formed; the process of forming a drainage channel through vibroflotation and then carrying out dynamic compaction and densification is adopted in a consolidated area, the process of alternately implementing vibroflotation and dynamic compaction is adopted in a sand stockpiling area, the process of carrying out local vibroflotation reinforcement after layered dynamic compaction and pre-pressing is adopted in a new hydraulic reclamation area, and vibroflotation and dynamic compaction construction parameters are dynamically fed back and adjusted by monitoring gravel data. The foundation treatment problem of hydraulic reclamation areas formed in different years is solved.

The invention belongs to the technical field of foam concrete, and particularly relates to a foam concrete wall material as well as a preparation method and application thereof. The foam concrete wall material prepared by the invention is prepared from 0 to 66.6 percent of fire coal bottom ash, 0 to 66.6 percent of coal ash, 25 to 35 percent of cement, 0.1 to 0.2 percent of water reducing agent, 0.2 to 0.3 percent of additive, 0.38 to 0.8 percent of foaming agent and water. The material can be used in non-bearing inner and outer partition walls with frame structures, non-accessible roofs, wall cabinet rear board walls, heat preservation and insulation layers of roofs and floors, inner walls of refrigeration houses, heat preservation and insulation boards, foundation pit backfilling, road paving and other projects, and has the characteristics of good heat insulation effect, high strength, difficulty in cracking, high integrity, low cost, easiness in construction and the like. And solid wastes such as coal-fired bottom ash and fly ash can be fully utilized, so that cement is saved, energy conservation and emission reduction are achieved, and the method has a wide application prospect.

The invention provides a high-fill foundation and filling body vertical stress-strain experiment system and an installation method, and belongs to the technical field of foundation engineering, the system is an experiment model needed for exploring a filling body original foundation stress-strain mechanism in high-fill site research, measurement of filling body original foundation stress-strain data is achieved, and the measurement accuracy is improved. The whole system specifically comprises a foundation experiment body, a filling body experiment body, a counter-force anchor pile, a dowel bar assembly, a counter-force beam, a sizing block body, a pressurization assembly and a stress strain induction measurement assembly, the loading capacity is controlled through a high-pressure hydraulic pump, and the counter-force anchor pile, the dowel bar assembly and the counter-force beam are all connected through cut flanges and high-strength bolts and are convenient to assemble and disassemble; the structure is stable, safe and reliable.