208 results about "Rubble" patented technology

An automatic soil leveling and compaction device, consisting of: i) a platform 101 designed to be positioned on a ground surface, wherein a pair of rail wheels 102 is arranged below the platform 101 to move the platform 101 on the surface; ii) an artificial intelligence-based imaging unit 103 installed on the platform 101 to capture multiple images of the platform 101's environment, wherein an interactive touch display panel 104 is arranged on the platform 101 to display the captured images, which the user accesses to select an area of ​​the surface in which the user wishes to perform leveling, whereupon a built-in microcontroller instructs the wheels 102 to move the platform 101 to the area specified by the user; iii) a hydraulically actuated piston 105 arranged on the platform 101 via an L-shaped retraction 106 to position the piston 105 above the ground surface, wherein a circular element 107 is connected to the free end of the piston 105, and the microcontroller actuates the piston 105 to extend / retract 106 in a repeating manner to provide a thrusting motion on the user-specific surface via the circular element 107 with regard to proper leveling of the user-specific surface; iv) a laser sensor installed on the body and synchronized with the imaging unit 103 to detect the surface level and determine the presence of gaps or an uneven surface on the user-specific surface, wherein, upon successful detection, the microcontroller actuates an iris hole 108 configured on the bottom part of a container 109 in which sand is stored, arranged on the body to release a larger quantity of sand into the gap / uneven surface to level the surface in order to enable smooth leveling of the user-specific area; and v) an ultrasonic sensor installed on the body and synchronized with the imaging unit 103 to detect the presence of obstacles / debris near the platform 101 and the path of the platform 101 during the leveling of the body, wherein, upon detection of obstacles / debris in the path of the platform 101, the microcontroller actuates a pair of robot grippers 110 installed on the platform 101 to grasp the grasped obstacle / debris and position it in a waste container 111 109 located on the platform 101, thereby providing additional reach and flexibility for the removal of obstacles and debris and the user-specified area to be leveled.

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

The utility model relates to a high-pressure jet grouting cutoff wall clay core wall earth rock cofferdam construction structure which comprises the following steps: S1, surveying and lofting by a surveying ship, and determining a block stone throwing and filling area; s2, rubble embankment riprap filling and dynamic elevation re-checking are carried out; s3, filling construction of a clay core wall in a central area; s4, construction of the high-pressure jet grouting expansion diaphragm wall; and S5, anti-seepage construction of the composite geomembrane of the upper slope section is conducted. According to the construction method of the clay core wall earth rock cofferdam of the high-pressure jet grouting cutoff wall, the construction speed is high, the anti-seepage effect is good, and the construction technical defects that in the construction process of an existing deepwater earth rock cofferdam, the riprap precision is low, the high-pressure jet grouting cutoff wall leaks slurry, the anti-seepage effect of an upstream slope is poor and the like are overcome; the construction method has the construction advantages of high stability, high efficiency, high benefits and the like during implementation, and the technical benefits are remarkable.

The invention discloses a treatment method for solidifying a karst cave filling body through microorganisms in the construction process of a pipe-following pile while drilling in a karst area. The treatment method mainly comprises a grouting hole, a grouting device, a grouting pipe, a high-pressure spray head and a tool pipe-following drilling machine while drilling, wherein the tool is matched with construction. According to the scheme, a reinforcing layer is formed on the inner wall of the karst cave through a method for solidifying karst cave cracks through microbial induction, and the karst cave is reinforced through pretreatment. The reinforcing layer formed through microorganism induction has good watertightness, it can be guaranteed that when cement paste is poured in the treatment process, the whole karst cave is fully filled with the cement paste, rubbles and clay components, and after the karst cave is pretreated and reinforced, the reinforcing layer penetrates through the karst cave to enable the pile bottom to reach the lower solid soil layer so that the bearing capacity of the pile bottom of the pipe pile while drilling can be guaranteed; and smooth proceeding of the construction process of the pipe pile while drilling is ensured, and a good reinforcing effect is achieved.

The invention relates to a rigid-flexible combined type high and steep slope rockfall protection structure and a construction method thereof. The method comprises the steps that slope cutting treatment is conducted on the high and steep slope, a plurality of horizontal flat areas are formed near the slope surface after slope cutting, and transition inclined flat areas are formed between the horizontal flat areas adjacent in height; stone blocking wall anchoring piles are arranged in the flat area, rope anchor rods and bases are preset on the top, and transversely continuous prefabricated concrete slabs are arranged on the back faces of the stone blocking wall anchoring piles and are poured into a whole with the stone blocking wall anchoring piles; laying a dry masonry rubble buffer layer on the back surface of the precast concrete slab, and digging a stone falling groove downwards behind the dry masonry rubble buffer layer; steel columns are installed on the base, and a flexible passive protective net is hung between the steel columns. The rigid pile plate type stone blocking wall and the flexible passive protection net are combined to form a protection whole, and the protection effect and the structural stability when high-energy rockfall occurs are effectively improved.

The invention relates to the technical field of tunnel engineering geological disaster prevention and control, in particular to a tunnel construction safety control method based on compression-torsion fault classification. Comprising the following steps: S100: according to engineering geological characteristics, dividing a compression-torsion fault into an anhydrous broken type: a fault broken zone is mainly fault rubble, the water yield is poor, and the risk is collapse and chipping; for the water inrush type, the fault fracture zone is high in water-rich property, and the risk is an inrush accident; according to the water quantity change type, one disc of the fault is a water-resisting layer, the other disc of the fault is a water-permeable layer, and the construction risk changes along with the construction direction; s200, the type of the compression-torsion fault is identified on site according to the characteristics of the tunnel face of the compression-torsion fault; s300, according to the fault classification result in the step S100 and the field identification type in the step S200, selecting a matched advanced forecasting method to carry out advanced geological forecasting; and S400, construction protection is conducted according to the different types of compression-torsion faults. According to the method, the corresponding construction measures are formulated by identifying the type of the compression-torsion fault, the construction risk is effectively reduced, and the tunnel construction safety is ensured.

The utility model discloses a water and soil conservation ecological protection slope which comprises an original soil layer, and the original soil layer is covered with construction slag. The tail end of the platform drainage ditch is communicated with the side face of the side drainage ditch, a bottom step is arranged on the bottom face of the inner side of the side drainage ditch, a drainage pipe is fixed to the middle of the masonry slag blocking wall in a penetrating mode, and an inverted filter layer is installed at the end, close to construction slag, of the drainage pipe. The top end of the compacted slope is connected with one side of a top drainage ditch, top covering soil is arranged on the surface of the construction slag body on the other side of the top drainage ditch, and a grouted rubble drainage ditch is installed at the tail end of the top covering soil. According to the water and soil conservation ecological protection slope, a novel structural design is adopted, slag bodies generated in the whole construction process are effectively utilized, surface runoff is effectively guided through the multiple drainage ditches, water and soil loss is avoided, meanwhile, accumulated water flow is discharged at the slope bottom, it is guaranteed that the whole slope body is stable, and the service life of the slope body is prolonged. Meanwhile, the artificial traces can be covered by vegetation, and local ecology multidirectional restoration is facilitated.

The invention discloses a rubble retaining wall operation system under complex working conditions and a construction method thereof, and the system comprises T-shaped pre-buried steel pipes which are pre-buried in retaining wall drain holes, reinforcing connecting plates which are respectively connected with the two T-shaped pre-buried steel pipes at the lower part of a retaining wall, and I-shaped steel which is arranged on the reinforcing connecting plates, the angle adjusting unit, the scaffold board and the protection unit are arranged on the I-shaped steel, and the length-adjustable flower basket pull rod is arranged between the top of the I-shaped steel and the T-shaped embedded steel pipe on the upper portion of the retaining wall in a hinged mode. The system further comprises a terminal control device and an intelligent construction monitoring sensor. Angle, pressure and displacement data of the scaffold board are collected through the intelligent construction monitoring sensor and transmitted to the terminal control device; the control device controls the angle adjusting unit and the flower basket pull rod to automatically adjust according to the data so as to adapt to retaining wall operation of different angles, and automatic control and monitoring of the rubble retaining wall operation construction process under the complex working condition are achieved.

The invention provides a method and system for high-liquid-limit soft soil roadbed construction, and relates to the technical field of data processing, and the method comprises the steps: obtaining geological monitoring data and drainage monitoring data of a construction site; generating a three-dimensional model of the construction area through the geological monitoring data and the drainage monitoring data, and generating a preliminary construction scheme according to the three-dimensional model; obtaining construction dynamic monitoring data; dynamically adjusting the ratio of the thickness of the rubble layer to the particle size of the gravel layer according to the real-time monitoring data so as to obtain an adjustment suggestion for dynamically adjusting the thickness of the rubble layer and the particle size of the gravel layer; according to the construction feedback data of the rubble layer and the gravel layer and the external environment data, a compaction process construction adjustment scheme is generated; according to the adjustment suggestions of the thickness of the rubble layer and the particle size of the gravel layer and the compaction process construction adjustment scheme, the construction process data are recorded in real time, and the construction log is generated, the construction quality and efficiency of roadbed construction can be further improved, so that the long-term stability of the roadbed is improved, and the later maintenance cost is reduced.

To provide a columnar structure demolition method, which is a demolition method for a columnar structure on the inner side of a double structures in which two hollow columnar structures are doubly formed, and does not require work of cutting and crushing at a high place like a top end part of the columnar structure and prevents rubble generated by cutting and crushing from dropping.SOLUTION: A columnar structure on the inner side is demolished by repeating a step to cut a bottom end of the columnar structure on the inner side and a step to lower the columnar structure on the inner side while supporting load of the columnar structure on the inner side by a lifting machine installed on a top end of the columnar structure erected on the outer side of the columnar structure on the inner side.SELECTED DRAWING: Figure 6

The invention relates to an apparatus and to a method for removing dust at a rubble pit (10). At the rubble pit (10) there is at least one delivery point (14) for positioning a delivery apparatus (16) for filling the rubble pit (10) with bulk material. The delivery point (14) adjoins a first edge portion (18) of the rubble pit (10). Along the first edge portion (18) there is a first suction-extraction assembly (24) which has a row of one or more suction-extraction openings (26). Along an oppositely situated second edge portion (28) of the rubble pit (10) there is a second suction-extraction assembly (34) which has a row of one or more suction-extraction openings (26). Above the rubble pit (10) there is a fan (42) for generating an air flow (L) in the direction of the rubble pit (10).

The invention relates to the technical field of farmland water conservancy engineering, in particular to a rubble retaining wall irrigation system for improving farmland water circulation. The rubble retaining wall irrigation system for improving farmland water circulation specifically comprises a ditch, a filter screen layer, a pebble layer, an adsorption layer, a medium-coarse sand layer and geotechnical cloth which are laid on the left side and the right side of the bottom of the ditch, retaining wall layers located on the two sides above the geotechnical cloth, and a paving layer located between the retaining wall layers, undisturbed soil is backfilled on the surface of the paving layer. The device has the advantages of being capable of effectively preventing cultivation soil loss, good in water circulation performance and convenient for water body exchange among farmland drainage ditches, farmland ditches and soil.

The invention belongs to the technical field of gravel ridge detection, and relates to a gravel ridge elevation detection system and method. The system comprises a detection rod, a driver, a pull rope sensor and a measurement and control module, the detection rod is arranged on the side, perpendicular to the length direction of the gravel ridges, of the gravel throwing pipe and is parallel to the gravel throwing pipe. The distance between the center of the detection rod and the center of the gravel throwing pipe is equal to the distance between the center lines of every two adjacent gravel ridges. When the riprap pipe lays and levels the current gravel ridge, the detection rod is located above the previous gravel ridge and is driven by the riprap pipe to move in the length direction of the previous gravel ridge, the driver drives the detection rod to move up and down repeatedly, and the detection rod moves downwards to the bottom end of the detection rod to make contact with the top face of the previous gravel ridge every time. The pull rope sensor transmits displacement data of the detection rod when the detection rod moves downwards each time to the measurement and control module for processing, and elevation values of a plurality of detection points of a previous gravel ridge are obtained. According to the invention, the elevation of the previous gravel ridge can be detected while the current gravel ridge is constructed by the riprap pipe, and the elevation detection precision of the gravel ridge is obviously improved.

The present invention discloses a tailings dam constructed with the aid of mining waste rock and a construction method thereof. The flood diversion dam includes a gravity dam body cast with rubble stone concrete and a back-pressure platform. The back-pressure platform is filled with mining waste rock. The back-pressure platform is constructed on the downstream side of the gravity dam body, and the back-pressure platform is arranged in contact with the inclined surface of the downstream side of the gravity dam body. The back-pressure platform spanning the entire riverbed of the present invention can significantly improve the overall stability and safety of the flood diversion dam, effectively control the uneven settlement caused by the gravity dam on the weak covering layer foundation, greatly reduce the risk of dam body cracking, and prevent the gravity dam covering layer foundation from deep shear overall instability and damage. The platform filling construction of the present invention keeps rising synchronously with the gravity dam body, and the back-pressure platform is used to build the access road to the warehouse during the construction period, which effectively solves the problem of transporting tens of thousands of cubic meters of rubble stone into the warehouse during the gradual casting and rising process of the rubble stone concrete gravity dam.

The utility model discloses a mortar rubble interception and drainage ditch construction mold which comprises a transverse supporting rod which is horizontally arranged, and the two ends of the transverse supporting rod are inserted into soil layers on the two sides of a drainage ditch respectively. The at least two joint bars are vertically connected to the two ends of the transverse supporting rod, and the joint bars are vertically inserted into the soil layer of the drainage ditch; the bottom rod is located below the transverse supporting rod, and the bottom rod is parallel to the bottom of the drainage ditch; the two side rods are located on the two sides of the bottom rod respectively, one end of each side rod is connected with the transverse supporting rod, the other end of each side rod is connected with one end of the bottom rod, and the two side rods are parallel to the two side faces of the drainage ditch respectively; the transverse supporting rods, the joint bars, the bottom rods and the side rods are steel pipes. By means of the mold, the construction efficiency can be greatly improved, and the construction period can be shortened; and secondly, the mold can guarantee the construction quality, errors can be reduced by accurately controlling the size and the shape of the ditch, and the engineering quality is improved.

The utility model discloses an asphalt pavement self-drainage structure, which particularly relates to the technical field of road engineering, and comprises a foundation layer, a broken brick layer and a cement layer which are sequentially arranged on the foundation layer, a rubble layer paved above the cement layer and an asphalt layer paved above the rubble layer, the rubble layer extends out of two sides of the asphalt layer, the broken brick layer and the cement layer, and main drainage grooves are formed in the two sides of the gravel layer correspondingly. According to the asphalt pavement self-drainage structure provided by the utility model, the gravel layer and the asphalt layer are paved on the original cement layer, so that rainwater partially permeates when falling onto the asphalt layer, and is drained towards two sides along the cement layer through the permeation of the gravel layer; rainwater on the upper portion of the asphalt layer is discharged towards the two sides of the asphalt layer and flows into the main drainage groove through the gravel layers on the two sides of the asphalt layer to be collected and discharged, then the rainwater is guided to flow into the main drainage groove to be collected under the condition that an original cement layer is not damaged, and the rainwater discharging effect is improved.

The invention discloses a construction method of a permafrost block stone dynamic compaction replacement composite foundation. The construction method comprises the following steps: step 1, a project construction preparation stage; secondly, a dynamic compaction scheme is designed; 3, surface layer freezing breaking and drainage system construction; step 4, preparation before dynamic compaction construction; step 5, guide hole construction; sixthly, dynamic compaction construction is conducted; step 7, construction recording; step 8, acceptance assessment and result archiving; and ninthly, quality, safety and environmental protection control in the construction process is conducted. The invention innovatively provides a three-stage reinforcing process of'guide hole dumping of block stones, dynamic compaction and full compaction ', a replacement body with a drainage function is formed by prefabricating guide holes and filling hard rubbles and broken stones with good gradation, a soft soil layer is effectively replaced and compacted, and a composite foundation with excellent bearing performance is constructed.

The utility model discloses a double-pile type L-shaped embankment structure which comprises pile foundations, a concrete cushion layer, an L-shaped wall body, handrails, a broken stone cushion layer and grouted rubble. The pile foundation is driven into an original embankment foundation, the concrete cushion layer is laid on the original embankment foundation, the L-shaped wall body is arranged on the concrete cushion layer, the upper end of the pile foundation penetrates through the concrete cushion layer into the L-shaped wall body, the side, close to a riverbed, of the L-shaped wall body is connected with the broken stone cushion layer, and the broken stone cushion layer is arranged on the riverbed. The rubble hardcore is provided with grouted rubble; backfill soil is arranged on the side, away from the riverbed, of the L-shaped wall body, and a road is arranged on the backfill soil; and the handrails are arranged on the L-shaped wall body. The double-pile type L-shaped embankment structure provided by the utility model aims to overcome the existing defects, is stable in structure, convenient to construct and low in manufacturing cost, and ensures the protection function of the embankment.

To provide a carbon-storing artificial stone / block having carbon-storing effect and relatively large strength by using dredge soil and a carbon compound.SOLUTION: A carbon-storing artificial stone / block is made by mixing dredge soil with steel slag, a binder, and a carbon compound having a carbon content of at least 10 mass%, and then solidifying the mixture, wherein the carbon-storing artificial stone / block stably stores the carbon compound and has a material age 28-day strength of at least 1.0 N / mm2, and can be used for rubble, covered stones 16, backfilling stones 24, fish reef / seaweed reef blocks 12, 13, wave dissipating blocks 15, or covered blocks 18.SELECTED DRAWING: Figure 2

The utility model belongs to the technical field of terrazzo, and discloses a terrazzo with a heat preservation function, which comprises a concrete layer, an anti-crack layer arranged at the top end of the concrete layer, an epoxy subbase layer arranged at the top end of the anti-crack layer, a heat preservation layer arranged at the top end of the epoxy subbase layer, and a mortar layer arranged at the top end of the heat preservation layer. A supporting frame is fixedly arranged in the mortar layer, a water milling layer is arranged at the top end of the mortar layer, a first rubble layer is arranged on the upper portion of the anti-cracking layer, a fiberglass mesh layer is arranged at the bottom end of the first rubble layer, a second rubble layer is arranged at the bottom end of the fiberglass mesh layer, and the particle sizes of stones of the first rubble layer and the second rubble layer are both 4-12 MM. The epoxy subbase layer is made of epoxy resin, a curing agent, a diluent, a solvent, a dispersing agent, a defoaming agent, some filler and the like through mixing processing, and by means of the scheme, the problems that in the using process, terrazzo cannot preserve indoor temperature, heat is prone to being dissipated from a water milling layer, and consequently indoor heat preservation cannot be achieved are solved.

The invention relates to a foundation bed provided with an immersed tunnel inclined self-silt-discharging furrow, which comprises a foundation trench, a block stone layer and a rubble layer, the rubble layer is provided with a furrow (3) and a ridge platform (4), the furrow (3) comprises two side slopes, the surfaces of the two side slopes are called side slopes (6), and the foundation bed is characterized in that the position, close to the middle and lower than the ridge platform (4), on the furrow (3) is a furrow starting point, and the ridge platform (4) is arranged on the furrow (3). Two furrow end points are arranged at the two ends of the furrow (3) respectively, a middle slope from high to low extends from the furrow starting point to each furrow end point, and a front inclined plane (5) is formed on the surface of each middle slope; the shapes of the side slopes (6) of the two side slope surfaces are determined according to the middle slope; and in the silt squeezing process of the immersed tube, silt returning objects at the bottom of the immersed tube flow out of the bottom of the immersed tube along the two front inclined planes (5). The invention further provides a design method of the foundation bed.

The invention discloses an ecological slope protection method based on concrete hexagonal blocks, which realizes the double targets of slope stability and ecological restoration through a five-in-one technical system of grouted rubble footing, original soil compaction, nutritional non-woven fabric laying, concrete hexagonal block construction and a vegetation restoration system. And quality control and acceptance: regularly checking footing settlement, non-woven fabric lap joint, hexagonal block flatness and the like, monitoring the vegetation recovery effect by aerial photography of an unmanned aerial vehicle, detecting the structural stability, evaluating the vegetation coverage rate and the like. According to the method, standard hexagonal block prefabricated parts are spliced to form a grid framework, nutrient soil is filled in the grid framework, turf or aquatic plants are planted in the grid framework, a double-reinforcing structure of a grouted rubble coping and footings is matched, water and soil loss is effectively prevented, nutritional non-woven fabric is innovatively adopted as an ecological transition layer, the functions of water retention, fertilizer retention and scouring prevention are achieved, and the ecological effect is good. The in-situ soil compaction technology is matched to improve the bearing capacity of the base, the vegetation survival rate is high, and the method is suitable for various slope treatment projects such as rivers, reservoirs and roads.

The invention discloses a green recovery ecological restoration method for a mine goaf, and relates to the technical field of ecological restoration. Rock surface treatment is firstly carried out, the exposed rock surface of a mine is cleaned, and broken stones are prevented from falling off during construction; then, regreening planting is carried out, and seedling transplanting is carried out on the reconditioned rock surface; and then vegetation maintenance is carried out, the planted seedlings and the sown grass seeds are maintained, and the vegetation can root and germinate. According to the method, through vegetation reconstruction and ecological restoration, surface coverage is rapidly restored, water and soil loss is reduced, geological disaster risks such as landslide and debris flow are effectively restrained, and the life and property safety of the mining area and surrounding residents is prevented from being threatened; the hyperaccumulator can also be used for purifying soil heavy metal pollution, and is matched with vegetation to adsorb dust and regulate microclimate, so that the regional air quality and ecological environment are remarkably improved; meanwhile, the regreening mining area can be transformed into an ecological park, a carbon sink forest or an agricultural base, and the land value is increased.

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 discloses a high-pressure karst water-rich large section highway tunnel drainage and pressure reduction device, which comprises pressure reduction assemblies arranged along the axis of the tunnel in a mirroring manner and a drainage unit communicated with the two pressure reduction assemblies, the drainage unit is used for draining flowing water generated by the two pressure reduction assemblies, and each pressure reduction assembly comprises a pressure control unit, a pressure control unit and a pressure control unit, the pressure control unit comprises a gravel blind ditch arranged at the position of a tunnel wall foot and extending in the direction away from the axis of the tunnel and a water gathering pipe arranged in the gravel blind ditch. The end, close to the tunnel, of the water gathering pipe is connected with a water pressure valve. The stabilizing unit comprises a plurality of positioning ribs evenly distributed on the peripheral side of the water pressure valve and a plurality of obliquely-arranged locking anchor rods, and the ends, away from the water pressure valve, of the positioning ribs and the ends, away from the water pressure valve, of the locking anchor rods are deeply buried in the rock stratum through concrete; water pressure can be released intelligently according to the water pressure condition, drainage is started automatically when the water pressure reaches a certain degree, the threat of the water pressure in a rock stratum to a tunnel lining structure is effectively reduced, and the lining structure is prevented from being broken down and damaged due to too high water pressure.

The invention discloses an offshore pile foundation excavation construction method and equipment based on zoning delayed blasting, and relates to the field of blasting construction, the method comprises the steps that in an erected drilling machine platform, a blast hole array is drilled to a preset elevation according to a preset position; the slotting holes, the caving holes and the contour holes are charged in a differentiated layered charging mode; segmental delayed detonation is conducted, specifically, a slotting hole drainage cartridge bag is detonated firstly so that water on the upper portion of a slotting rock mass can be discharged, and an orifice rock mass is broken; then, upper and lower rock breaking cartridges of the slotting hole and cartridges of the caving hole and the contour hole are sequentially detonated in a delayed mode; blasting gravels generated in the detonation process are removed, and the pile foundation steel pipe is sunk to the designed elevation; and concrete is poured into the pile foundation steel pipe to form the offshore pile foundation. According to the method, the deepwater high-pressure limitation is reduced through the detonation drainage process and the segmented delayed detonation process, the efficiency of layered rock breaking and energy directional release is improved, and then the blasting effect and the slag removal efficiency of offshore pile foundation excavation construction are improved.

The invention relates to the technical field of RFID antenna reliability testing, in particular to an RFID antenna reliability testing device and method, and the testing device comprises a test board, an installation simulation mechanism, a conveying mechanism and static pressure load testing equipment. According to the invention, through the soil in the soil storage tank, the broken stones spread on the surface of the RFID antenna and the conveying belt for supporting the RFID antenna, and through introducing the gas with set temperature and humidity into the through hole, the installation environment of the RFID antenna during actual installation is simulated, and the compressive property of the RFID antenna is detected in cooperation with a static pressure load test device; therefore, a test result which is more practical can be obtained. The rubble is automatically spread on the surface of the RFID antenna through the rubble spreading part before each test, the rubble and soil are automatically separated from the RFID antenna after the test is finished, manual spreading and cleaning are not needed, and the complexity of test operation is not increased while it is guaranteed that the test condition conforms to the actual installation environment.

The application provides a brick-concrete complex structure reinforcing method, and belongs to the technical field of building construction. The brick-concrete complex structure reinforcing method comprises the following steps: erecting support in the interior and middle position of the brick-concrete complex structure, excavating the added foundation contour of the brick-concrete complex structure, releasing the foundation cutting line and adding the outer contour line of the foundation, chiseling away the strip foundation and the rubble foundation by using the static cutting mode, installing the design drawing reserved pile hole on the brick-concrete complex structure, fixing and connecting the vertical main reinforcement of the buttress column with the structural reinforcement on the brick-concrete complex structure, opening the shear key hole, fixing and connecting the ring beam ring reinforcement with the original wall body of the brick-concrete complex structure, fixing the buttress column and the beam on the brick-concrete complex structure in sequence, and pouring the concrete. The method can solve the problem that the existing reinforcing method of the brick-concrete complex structure greatly disturbs and damages the wall to be reinforced and does not change the stress mode of the original structure form.

The grouted rubble jointing tool comprises a slurry cylinder and a limiting cage frame, the slurry cylinder is arranged in the limiting cage frame, the bottom end of the slurry cylinder is in a conical shape and is provided with a slurry outlet, a piston rod is coaxially arranged in the slurry cylinder, one end of the piston rod is provided with a material pushing block, and the other end of the piston rod is provided with a material pushing rod; one end of the slurry outlet is connected with the end cover, the other end of the slurry outlet penetrates through the end cover and is provided with a handle, a detachable semicircular bent pipe is arranged at the end of the slurry outlet, a movably-arranged troweling plate is arranged at the end of the semicircular bent pipe, the section of the semicircular bent pipe is in a semicircular ring shape, one end of the semicircular bent pipe is detachably connected with the slurry outlet through a flange head, and the other end of the semicircular bent pipe is connected with the end cover. The other end of the semicircular bent pipe is fixed to the bottom face of the trowelling plate, and the semicircular bent pipe is a corrugated telescopic pipe. According to the grouted rubble pointing tool and the using method thereof, when the grouted rubble pointing tool is used, pointing can be effectively conducted on grouted rubble, slurry can be flattened and compacted during pointing, the overall strength is improved, and the grouted rubble pointing tool and the using method thereof are suitable for application and popularization.

The utility model discloses an ecological green gravity type retaining wall which comprises a gravity type retaining wall cast-in-place wall body, a prefabricated retaining structure and planting soil, the gravity type retaining wall cast-in-place wall body is provided with a plurality of containing grooves in the longitudinal direction of the gravity type retaining wall cast-in-place wall body, and the opening direction of the containing grooves is forward. The multiple prefabricated soil retaining structures are all installed at the opening of the containing groove and vertically spliced to form a wall panel, the space formed by the prefabricated soil retaining structures and the wall panel is filled with the planting soil, each prefabricated soil retaining structure comprises a prefabricated soil retaining plate and a small soil retaining component, a plurality of prefabricated soil retaining plate preformed holes are formed in the prefabricated soil retaining plate, and the small soil retaining components are arranged in the prefabricated soil retaining plate preformed holes. And the small soil retaining component is used for sealing the preformed hole of the prefabricated soil retaining plate. The gravity type retaining wall has the advantages that the gravity type retaining wall is of a hollow structure, the hollow part is filled with soil to replace concrete or rubble concrete of a traditional gravity type retaining wall, the gravity type retaining wall is eco-friendly, and the work amount and the manufacturing cost are saved; green plants can be planted on the wall surface and the wall top of the gravity retaining wall, and the ecological greening effect is good.