602 results about "Geogrid" patented technology

The invention discloses an intelligent heating geogrid-based roadbed settlement and frozen soil plasticity prediction system, which comprises an intelligent heating geogrid, a data acquisition unit, an intelligent heating control unit, a moisture content calculation unit and an analysis prediction unit, the intelligent heating control unit performs starting control on the heating resistance wire according to a soil body temperature value collected by the optical fiber temperature sensor so as to heat the self-heating steel pipe, the self-heating steel pipe heats the soil body, and the moisture content calculation unit calculates the moisture content of the soil body according to a temperature rise value of the soil body in unit time. And the analysis and prediction unit predicts roadbed settlement and frozen soil plasticity according to the soil moisture content and the grating dependent variable. The self-heating steel pipe is installed on the grating body, the water content of the soil body is monitored in real time while the soil body is heated, the subgrade settlement state and the frozen soil plastic characteristics are accurately predicted according to the collected data, and therefore scientific support is provided for safety evaluation and maintenance of subgrade engineering.

The utility model provides a soft foundation levee slope reinforcing structure based on timber piles and geogrids. The soft foundation levee slope reinforcing structure comprises a soil levee body, a reinforcing levee slope, a soft soil levee foundation, the timber piles, a gravel soil backfilling layer, a ballast platform and the geogrids. An embankment top road is arranged at the upper part of the earth embankment body, and the side surface is an original embankment slope; the reinforced levee slope is located outside the original levee slope; the soft soil embankment foundation is located on the lower side of the soil embankment body. The lower ends of the timber piles are vertically inserted into the soft soil embankment foundation, and steel wire meshes are arranged at the tops; the gravel soil backfill layer is laid on the timber piles; the ballast platform is located on the upper side of the original levee slope and connected with the reinforced levee slope. The geogrids are located between the gravel soil backfill layer and the ballast platform and laid layer by layer along with filling of the ballast platform. The timber piles are used as the slide-resistant piles, so that the bearing capacity of the soft soil embankment foundation is improved; the stability and integrity of the levee slope are enhanced by adopting the ballast platform and the geogrid, the instability of the levee slope is prevented, the safety of the levee slope in the construction period and the operation period is guaranteed, and the engineering effect is good.

The invention belongs to the technical field of foundation treatment construction, and particularly relates to a rapid reinforcement construction method for a deep ultra-soft foundation. Comprising the following steps: step 1, in-situ sludge solidification; 2, leveling and partitioning are carried out; 3, construction of the cutoff wall; 4, well point dewatering; 5, high-pressure jet grouting reinforcement is conducted; 6, a geogrid reinforced broken stone hardcore is laid; and 7, leveling and rolling. According to the method, the three key steps of sludge in-situ solidification, well-point dewatering and high-pressure jet grouting pile construction are combined, the construction period is effectively shortened, the construction cost is reduced, the environmental protection property is good, the bearing capacity of the foundation can be remarkably improved, the stability and safety of a building are ensured, and an innovative solution is provided for reinforcement treatment of the ultra-soft soil foundation.

The utility model relates to the technical field of geocells, in particular to a geocell with fastener joints. Specifically, for any belt body of the geocell, a plurality of clamping parts which are evenly distributed in the length direction of the belt body are arranged on the belt body, and each clamping part is composed of a plurality of parallel kerfs; for any node of the geocell, two fasteners and a locking piece are arranged at the node; the fastener comprises a base body, and a plurality of limiting units are fixedly arranged above the base body; under the condition that the two fasteners are fastened oppositely, the limiting unit of one fastener is embedded with the limiting unit of the other fastener; the clamping parts of the two belt bodies at the node are overlapped, and the overlapped clamping parts are clamped between the limiting unit of one fastener and the limiting unit of the other fastener by the two fasteners; and the locking piece is used for locking the two fasteners which are oppositely fastened at the node. The joints of the geocell are excellent in mechanical property, and the geocell further has the advantages of being high in safety and low in cost.

The invention relates to a construction method for a roadbed penetrating through a V-shaped valley area, and belongs to the technical field of foundation engineering and foundation treatment. The problems of low foundation drainage efficiency, filling side slope instability and differential settlement control in V-shaped valley roadbed construction are solved. According to the technical scheme, a groove is dug along the bottom of a valley, a gravel drainage blind ditch wrapped by permeable geotextile is laid, and a foundation drainage system is formed; during layered filling, a vibratory roller with a piezoelectric sensor embedded into a steel wheel is adopted; after every two layers are filled, one-way geogrids are laid along the slope and vertically anchored into the compaction layer through U-shaped anchoring parts; a transverse drainage pipe is pre-buried when filling is conducted to a foundation bearing capacity sudden change point threshold value; and after filling is completed, a settlement monitoring array is arranged. According to the method, through system integration of foundation drainage structure optimization, filling body intelligent compaction and differential settlement dynamic treatment, the bearing stability of the fill roadbed under the complex terrain is remarkably improved, and the method is suitable for foundation construction and disaster prevention and control of the V-shaped canyon section of the mountain road.

The invention discloses a hole slag back pressure backfilling and roadbed structure integrated construction technology, and belongs to the technical field of road construction. Comprising the following steps: grading and screening the tunnel hole slag into large / medium / fine three-level aggregate, and then crushing and recombining to form graded improved aggregate; constructing a multi-layer backfill structure of a base layer, a transition layer and a reinforcing layer; interface shear strength is achieved through the gravel-geogrid composite transition layer; adopting a vibratory roller to implement a static pressure and vibratory rolling combined process with adaptive levels; a coarse / fine-particle-size two-stage cement stabilized macadam layer is laid on the top to form a permeation drainage channel, and a transverse drainage blind pipe system is arranged to achieve three-dimensional drainage. According to the technology, the problems that in traditional hole slag backfilling, aggregate grading discreteness is large, shear failure is likely to be caused by sudden change of interlayer modulus, interlayer combination weakening is caused by uneven layered rolling energy transfer, and structure instability is caused by pore water pressure accumulation are solved, and hole slag resource utilization and roadbed structure performance collaborative improvement are achieved.

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 the technical field of embankment reinforcing and widening, and provides an embankment widening construction method based on biomineralization and reinforcement cooperation. The microcosmic cementation effect of calcium carbonate precipitation in the inclusion is induced by the enzyme and is combined with the macroscopic constraint of the geogrid, so that a friction-cementation composite interface is formed, and the shear resistance and impermeability of the new and old roadbed combined surface are greatly improved. Meanwhile, the synergistic enhancement transition area serves as a rigidity coordination layer, loads can be effectively homogenized, differential deformation can be effectively absorbed, and therefore differential settlement is restrained, and reflection cracks are prevented. According to the method, the microcosmic cementation strengthening capacity of enzyme-induced calcium carbonate precipitation and the macroscopic reinforcement restraining capacity of the geotechnical reinforcement material are subjected to space coupling and function cooperation, the weak area of the widened embankment is fundamentally improved, and the integrity and long-term stability of the widened embankment are remarkably improved.

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 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 utility model provides a passable pipe bag hydraulic reclamation cofferdam structure, which belongs to the technical field of cofferdam construction and comprises a geogrid layer fixedly arranged at the bottom of a river, a through bag layer laid on the geogrid layer, a lower cofferdam layer and an upper cofferdam layer. The cofferdam lower layer comprises a first left side pipe bag and a first right side pipe bag which are laid on the through bag layer, an inverted-T-shaped center area is formed between the first left side pipe bag and the first right side pipe bag, and the inverted-T-shaped center area is filled with a first layer of sand soil structure in a blowing mode. The problem that existing cofferdam construction is insufficient in stability and traffic capacity is solved, and the method has the advantages of being simple, easy to implement, high in operability, efficient and reliable and can be widely applied to cofferdam field construction.

The invention relates to the field of water conservancy projects, and provides a flexible ecological dam and a construction method thereof. The ecological dam comprises a dam body, film bag piles are constructed in the dam body, and geogrids are installed outside the film bag piles. The vegetation layer is laid on the upstream face and / or the downstream face; the water and soil protection blanket is laid on the vegetation layer so that the vegetation layer can be attached to the upstream face and / or the downstream face; and the protection foot is formed on the upstream face and closely attached to the embankment. According to the ecological dam, the dam and the foundation stratum can be integrated, the integrity and stability of the dam body structure are improved, and the anti-sliding performance of the dam is enhanced; the root system of the vegetation layer can be attached to the dam and locked tightly, the integrity of the dam is enhanced, and the safety of the dam is further enhanced. The protection feet are arranged on the upstream face, damage to the bottom embankment caused by rapid sand erosion can be resisted, and meanwhile the situation that a dam foundation is damaged due to water flow erosion or human factors on a riverbed and a seabed, and consequently the overall safety of the dam is affected is prevented.

The invention discloses a geogrid and EICP synergistically reinforced soil embankment structure and a construction method, and relates to the technical field of soil embankment structures. Comprising a pavement base layer, an embankment bearing layer and a natural soil foundation layer, and the natural soil foundation layer is used as a soil embankment structure support and is arranged at the bottommost layer; the pavement base layer is used for bearing an upper driving load and uniformly transferring the upper driving load to the embankment bearing layer below; and the embankment bearing layer is used for bearing the upper load transmitted by the pavement base layer. The engineering performance is improved through the multi-layer synergistic effect, the core reinforcing layer is of an innovative space grid structure and is composed of a prefabricated geogrid, a grid support arranged in the inclined direction and a rigid stress plate frame, a three-dimensional force transmission network is formed, the limitation of a traditional reinforcing method is broken through, and the engineering performance is improved. In addition, the grating support is arranged at a specific angle, the structural rigidity is guaranteed, and the stress concentration phenomenon is avoided.

A system for monitoring pavement infrastructure includes an edge network enabled sensor-enabled geogrid embedded within the pavement infrastructure, a microcontroller configured to receive signals from the sensor-enabled geogrid, and a communication network for transmitting the received signals from the microcontroller to a computer network. The sensor-enabled geogrid provides real-time data on the condition of the pavement, enabling efficient monitoring and maintenance. The microcontroller processes the signals from the geogrid, and the communication network facilitates the transmission of this data to a remote computer network for analysis and decision-making. This system enhances the ability to monitor pavement conditions, potentially improving maintenance strategies and extending the lifecycle of pavement infrastructure.

The present invention discloses an assembled multi-source solid waste fluidized solidified soil vertical reinforced retaining wall structure and construction method. The retaining wall structure includes a wall panel, a steel pipe frame, a geogrid and fluidized solidified soil. The wall panel is arranged on the left, right and front sides of the steel pipe frame and the inclined surface composed of the inclined steel pipe and the fourth horizontal steel pipe. The steel pipe frame is composed of a front vertical steel pipe, a first horizontal steel pipe and a second horizontal steel pipe, which are vertically connected to each other. The front vertical steel pipe and the rear vertical steel pipe are perpendicular to the ground. The rear vertical steel pipe is close to the slope and is vertically connected to the third horizontal steel pipe, the first horizontal steel pipe and the second horizontal steel pipe. An inclined steel pipe is arranged between the third horizontal steel pipe and the front vertical steel pipe, and a fourth horizontal steel pipe is arranged at both ends of the inclined steel pipe. The geogrid is arranged perpendicular to the first horizontal steel pipe, and the fluidized solidified soil is poured inside the steel pipe frame. The structure and construction method of the present invention realize the rapid assembly, continuous construction, cost saving, environmental protection and energy saving, and shear strength improvement of the retaining wall, thereby improving the engineering quality and social benefits.

The utility model discloses a basalt fiber geogrid which comprises a plurality of geogrid strips and first connecting assemblies, the geogrid strips are divided into transverse grid strips and longitudinal grid strips, the geogrid strips penetrate through the first connecting assemblies, and the staggered positions of the transverse grid strips and the longitudinal grid strips are fixed to the first connecting assemblies; the first connecting assembly comprises a grating strip connecting block and a fixed cutting cone which are integrally formed, and a first mounting inserting groove is formed in the lower portion of the front face of the grating strip connecting block and penetrates through the grating strip connecting block. According to the utility model, the plurality of geogrid strips are fixedly connected through the connecting assemblies, so that the plurality of geogrid transverse strips which are arranged at equal intervals and the plurality of geogrid longitudinal strips which are arranged at equal intervals form the geogrid, and the assembling width and length of the geogrid can be freely adjusted according to actual civil construction requirements; and the situation that the grids are overlapped or gaps exist between the grids is avoided, and the using effect of the whole geogrid is guaranteed.

The invention relates to a marsh area roadbed treatment method, which comprises the following steps of: longitudinally excavating two parallel drainage open ditches on the top surface of a roadbed at intervals, excavating a foundation trench which is 0.5 m below an underground water level line in an area between the open ditches, paving a broken stone hardcore and a two-way stretching plastic geogrid in an ultra-wide manner, filling lime improved soil with quicklime fineness of less than or equal to 5mm and digestion rate of more than or equal to 90% in a layered manner, and carrying out subgrade treatment. The compactness is controlled to be larger than or equal to 93% through a vibratory roller, then a composite impermeable layer composed of a cement stabilizing layer, an HDPE geomembrane and a medium-coarse sand protection layer is laid, and a permeable pipe is embedded in the longitudinal direction of the roadbed and communicated with the open drain. Through the synergistic effect of the three-dimensional drainage system and the multi-layer structure, the roadbed drainage efficiency is effectively improved, the foundation stability and seepage-proofing performance are enhanced, and the method is mainly suitable for foundation treatment of road engineering in the marsh area.

The invention discloses a self-adaptive regulation and control method for differential settlement of a new roadbed and an old roadbed in old road widening, belongs to the technical field of road engineering, and solves the technical problems of longitudinal cracks, slab staggering and other diseases caused by differential settlement of a new roadbed and old roadbed combined part in old road widening engineering. According to the key points of the technical scheme, the method comprises the following steps: vertically excavating a groove with the depth of 1.4-1.6 m and the width of 0.8-1.0 m at the junction of an old roadbed and a new roadbed; backfilling 5-20mm graded broken stones layer by layer, and tamping until the compaction degree is 96%; a bidirectional geogrid with the tensile strength of 80 kN / m is laid; a cement macadam transition layer with the thickness of 0.3-0.6 m is arranged, and a 2% drainage slope is formed; a settlement monitoring pipe is buried, real-time monitoring is conducted through an optical fiber sensor, and when the settlement difference exceeds 15 mm, automatic grouting is adjusted and controlled to be smaller than 5 mm. The method is mainly used for accurately controlling differential settlement of new and old roadbeds and improving the road stability and the service life.

The invention provides a high-filling slope ecological protection construction method, and relates to the technical field of slope protection engineering. The construction method comprises the following implementation steps: step 1, slope pretreatment; the method comprises the following steps: firstly, shaping and trimming a high-filled side slope, cleaning surface topsoil, gravels and weeds, and synchronously presetting a through-type drainage system at the top, the waist and the toe of the side slope; comprising the four steps of anchor rod laying, grouting and anchoring, lattice beam pouring and geogrid laying, specifically, drilling is conducted on the trimmed slope surface of the side slope, anchor rods are laid, lattice beams fixedly connected with the anchor rods are formed through pouring, then the geogrids are flatly laid in the coverage area of the lattice beams, and double fixing is completed. The anti-sliding stability of the slope body is enhanced, the geogrids can disperse the load of the slope body, the shear strength of the surface soil body of the slope is improved, the overall stability of the high-filled slope is remarkably improved, and geological disasters such as landslide and collapse of the slope are effectively prevented.

The invention discloses a construction method for a coal mining subsidence land sponge field, and belongs to the technical field of sponge field construction. The high-strength geogrid is laid at the bottom of the backfill layer, the gangue filling layer bonded by Portland cement is combined, a rigid framework and flexible reinforced composite foundation structure is formed, differential settlement of a subsidence area is restrained, the gangue filling layer consolidated by cement prevents secondary collapse, the permeable material layer is arranged under the earth surface, and the water-permeable material layer is arranged under the earth surface. The water-permeable layer is formed by mixing modified coal gangue loaded compound fertilizer, broken stone and gravel, the water-permeable layer intercepts nutrients through the ion exchange effect of the modified coal gangue, graded pores of the broken stone and the gravel promote rapid infiltration of rainwater, waterlogging is avoided, and the surface layer is covered with a mixture of the modified coal gangue loaded compound fertilizer and local soil. A water retention-ventilation-fertilizer supply microenvironment is formed, the pore structure of the coal gangue improves the air permeability of the soil, the graft copolymer can retain water, slowly release and reduce water evaporation, and deep-root crops penetrate through roots to consolidate the soil and improve the erosion resistance.

The utility model provides a roadbed structure of a soft soil foundation, which relates to the technical field of roadbed structures and comprises a soft foundation layer, a soil filling layer, a pavement layer and a reinforcing mechanism. According to the roadbed structure of the soft soil foundation, the geotechnical grid is flatly laid and placed on the soft foundation layer, the pouring pipes are inserted into the threaded pipe openings in the two ends of the geotechnical grid, the conical heads move downwards to be inserted into the soft foundation layer below, the threaded connectors and the threaded pipe openings are fixed together through the threaded sleeves, the reinforcing mechanisms are fixed, and the pouring pipes are filled with cement paste; cement paste flows out from the grouting holes in the bottom and the peripheral side of the grouting pipe through the pipe cavity and diffuses towards the periphery, in the grouting process, pressure can be generated when the cement paste is injected into the soft base soil layer, loose soil particles in the soft base soil body are squeezed towards the peripheral side through the pressure to be densified, and after the cement paste is solidified in the soil layer, a solid cementing material is formed. Loose soil particles are bonded together, so that the shear strength and the bearing capacity of a soil body are improved, and sedimentation and deformation are reduced.

The invention relates to the technical field of embankment filling, and particularly discloses a permanent and temporary combined side slope protection structure which comprises an empty side slope and a line arranged on the side slope, an embankment used for filling is arranged on one side of the side slope, a reinforced structure is arranged on one side of the embankment, and the reinforced structure is arranged on the other side of the embankment. The reinforced structure comprises a geogrid laid on the embankment and a wrapping body included in the geogrid; through the design of the tie bars and the wrapping bodies, transverse resistance is provided through friction force between the ballast and the filler, the stability of the temporary side slope is effectively enhanced, sliding and collapse are prevented, anti-scouring protection is provided for the side slope through the geotechnical cloth, rainwater scouring and soil erosion are effectively prevented, the integrity of the side slope is kept, and the service life of the side slope is prolonged. The temporary protection requirement in the construction period is met, the structure can serve as a part of a permanent structure, optimized utilization of resources is achieved, and the overall construction cost is reduced.

The invention belongs to the technical field of geogrids, and discloses a geogrid with a drainage function and a manufacturing device and method.The geogrid comprises a plurality of grid strips, the grid strips are divided into drainage strips and common strips, each drainage strip comprises a groove-shaped strip body, a drainage groove is formed in the groove-shaped strip body in the length direction of the groove-shaped strip body, and the common strips are arranged in the drainage groove. Geotextile is arranged on the groove-shaped strip body and located on the notch side of the drainage groove, the common strip comprises a rectangular strip body and a groove-shaped strip body, a plurality of fiber tows are arranged in the rectangular strip body at intervals, drainage strips are adopted as the longitudinal grid strips, and drainage strips or common strips are adopted as the transverse grid strips. The design of the longitudinal drainage strips is adopted, the drainage channel penetrating in the longitudinal direction is formed, free water in the soil body can be rapidly collected and directionally drained out of an engineering area, the soil body saturation degree is effectively reduced, the residence time of water in the soil body is shortened, and the problems that due to water accumulation, the dead weight of the soil body is increased, and the bearing capacity is reduced are solved.

The utility model discloses a bidirectional steel-plastic geogrid, and relates to the field of geotechnical support. A two-way steel-plastic geogrid comprises a two-way grid, and further comprises a first fixing column and a second fixing column which are arranged at the two ends of the two-way grid respectively. The first fixing column and the second fixing column are each provided with a limiting groove, and the two ends of the bidirectional grating are inserted into the limiting grooves of the first fixing column and the second fixing column correspondingly. The first fixing column, the second fixing column, the limiting assembly, the laser transmitter, the laser receiver and other components are used in cooperation, in the laying process of the bidirectional grille, compared with the prior art, the bidirectional grille does not need to be manually tensioned and straightened once every time when the bidirectional grille is laid by a certain distance, and the laying efficiency is improved. The two-way steel-plastic geogrid can be tensioned and straightened after the two-way grid is completely unfolded, so that the straightening effect can be ensured, the labor capacity of constructors can be greatly reduced, and the construction efficiency is effectively improved.

The invention relates to the technical field of road engineering material design and calculation, and discloses a calculation method for pervious concrete double-layer grating arrangement parameters. According to the method, a geogrid working performance coefficient, a grid interlayer spacing optimization factor, an effective permeability rate correction coefficient, an interlayer synergistic effect coefficient, a layered stress diffusion factor and a permeability comprehensive index are introduced for the first time, a quantitative evaluation model is constructed, and a multi-dimensional performance index and a structure response function are constructed. The structural mechanical behavior and permeability of the pervious concrete are comprehensively considered, and the double-layer arrangement position and interlayer spacing of the geogrid are determined. The blindness of traditional empirical layout is overcome, and the method is suitable for road structure design under medium and heavy traffic loads. According to the method, a scientific and computable double-layer arrangement parameter determination method is established, and collaborative optimization of the grid enhancement effect and the water permeability performance is achieved.

1. The name of the design product: injection-molded geogrid (01). 2. The use of the design product: to enhance the structure of soil, for engineering reinforcement and protection. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: Design 1 perspective view. 5. Design 1 is designated as the basic design.

The utility model discloses a three-dimensional reinforced bank protection structure suitable for a coral sand site, belongs to the technical field of constructional engineering, and aims to solve the technical problems that a traditional bank protection structure in the prior art is high in construction difficulty and easily affects marine ecology. The fixing device comprises a plurality of fixing units which are overlapped and arranged in a staggered mode. Each fixing unit comprises a gabion box and a geogrid, and the gabion box is filled with coral reefs; geotechnical cloth is arranged between the gabion gabion net and the geogrid, and the gabion gabion net and the geogrid are connected through a plurality of ribbons I; the non-porous geotechnical cloth is arranged on the inner side of the geogrid, and the non-porous geotechnical cloth is filled with coral sand. The three-dimensional reinforced bank protection structure suitable for the coral sand site is small in material consumption, easy and convenient to construct, flexible in modeling and layout, high in stability and high in utilization value.

This invention provides a construction method for improving the drainage capacity of road structures, relating to the field of drainage function technology for the renovation and upgrading of old roads. It separates water bodies between the upper and lower structural layers and the original ground surfaces on both sides of the road structure layer by forming an emulsified asphalt layer and waterproof geotextile. A rapid drainage structure is formed using a concrete pavement crushed stone layer, filled with crushed stone, drainage geogrids, sidewalk rubble, a filter layer, and drainage pipes. This achieves rapid drainage of the road structure, ensuring the stability of the road structure layer in the renovation of old pavements, reducing differential settlement caused by groundwater and other factors, and avoiding disturbance to the road and the resulting reflective cracks. This invention improves the drainage performance at the junction of sidewalks and roads, reducing water disturbance problems.

The utility model relates to the technical field of slope stabilization, aims to solve the problems of high labor cost, time and labor waste, slow construction progress and low working efficiency in the prior art, and provides a slope surface form for a high fill slope of a transformer substation. A slope surface is arranged at one end of the backfill body, the slope surface and the backfill body are integrally formed, a plurality of backfill layers are arranged in the backfill body, geogrids are clamped between the adjacent backfill layers, woven cloth is arranged at the ends, close to the slope surface, of the geogrids, and backfill soil is arranged in the woven cloth. The utility model has the beneficial effects of low labor cost, time and labor saving, fast construction progress and high working efficiency.

The invention relates to the technical field of slope supporting construction of constructional engineering, and particularly discloses a redundant and safe reinforced soil structure and a construction method. Reinforced soil is of a multi-step structure and is constructed on a weathered rock foundation; the reinforced soil sequentially comprises a plain concrete foundation, multiple layers of integral steel-plastic geogrids, a graded broken stone drainage layer, a clay water-resisting layer, a waterproof geomembrane, a concrete sealing bottom and plain filling soil from bottom to top, and reinforced concrete panels are poured on the outer sides of the integral steel-plastic geogrids. A reinforced concrete foundation is arranged at the bottom of the reinforced concrete face plate, a cement soil cushion layer is laid at the bottom of the reinforced concrete face plate, drainage holes and pre-embedded steel tie bars are arranged in the reinforced concrete face plate, the pre-embedded steel tie bars and the whole steel-plastic geogrids are bundled up, and a gravel inverted filter bag is arranged in each layer of steel-plastic geogrids. The clay water-resisting layer and the gravel drainage layer are laid to achieve redundant safe water prevention and drainage, the construction period is controllable, and the manufacturing cost is relatively low.