106results about How to "Ensure construction efficiency" patented technology

The invention provides a portable stirrup welding device for high pier construction, and relates to the technical field of box girder stirrup welding equipment.The portable stirrup welding device comprises a welding hand-held piece, and a steel bar storage part is installed on the welding hand-held piece; the steel bar storage part is used for storing stirrup connecting bars; a connecting rib pushing piece is mounted on the welding handheld piece; the connecting rib pushing piece is used for pushing stirrup connecting ribs; two stirrup prestress pieces are mounted on the welding handheld piece; the two stirrup prestressed parts are used for pulling stirrups; prestress annealing welding can be achieved, the welding tension degree is poor, meanwhile, the accuracy of welding seams can be affected by deviation of the stirrups, and the problems that the welding efficiency is low, the stirrups are not convenient to automatically correct and the tension degree of the welded stirrups is poor due to the fact that welding work of the stirrups for high pier construction mostly adopts manual handheld welding gun operation are solved.

The utility model discloses a tool for controlling the elevation of an induction plate of a linear motor, which comprises a cross beam and a measuring assembly, and a first positioning assembly and a second positioning assembly are respectively arranged at two ends of the cross beam, the measuring assembly comprises a sliding seat which is slidably installed on the cross beam and is used for measuring the transverse distance of the measuring points of the induction plate, and a caliper which is installed on the sliding seat and is used for measuring the vertical distance of the measuring points of the induction plate. Through the positioning assemblies arranged on the two sides of the cross beam and the measuring assembly moving on the cross beam, measurement of the transverse distance and the longitudinal distance of the measuring points of the induction plate is achieved, the high-precision requirement for height installation of the induction plate is met, the elevation control precision in the installation process of the induction plate is improved, the construction quality is improved, and the risk of construction rectification is reduced.

The invention relates to a foam concrete light-weight embankment capable of alternately maintaining traffic by lifting a longitudinal slope during reconstruction and expansion of a road, which adopts foam concrete to construct and expand the embankment and to lift the embankment by the longitudinal slope, so that the dead weight of the embankment is reduced, the settlement amount of a new roadbed is reduced, the differential settlement between the new roadbed and the old roadbed is reduced, and the later maintenance cost is reduced; during foam concrete construction, a plurality of reinforcing mesh anchoring measures are set layer by layer, so that the stability of the reinforcing meshes in the foam concrete pouring process is improved, and the construction quality of the light embankment is further improved; the new roadbed and the old roadbed are anchored through the reinforcing mesh hanging type supports, the Z-shaped supports and the claw-shaped supports, and the integrity between the original roadbed and the widened longitudinal slope lifting embankment is improved.

A connecting member bolt mounting device relates to the field of instrument assembly and comprises two rectangular support frames arranged up and down and capable of moving vertically; the bearing mechanism comprises two moving frames which are arranged on the inner side of the supporting frame and move along the track of the supporting frame, two penetrating grooves are formed in the side faces of the moving frames, two bearing plates are arranged on the outer sides of the moving frames, and a plurality of material boxes bearing nuts and bolts are placed on the bearing plates; a through groove is formed in the lower bearing plate; the two mounting mechanisms are mounted on the moving frame respectively and comprise a first bearing pipe and a second bearing pipe which are arranged in the penetrating groove in a penetrating mode and move in the length direction of the first bearing pipe, and one end of the first bearing pipe is slidably mounted on the supporting plate moving vertically; a guide pipe is arranged at the end, away from the moving frame, of the second bearing pipe and used for containing a bolt, and a rotating head which moves in the vertical direction and rotates around the axis of the rotating head is arranged above the guide pipe. The device can automatically use the bolts to connect the templates, so that the labor is reduced, the construction efficiency is ensured, and the safety risk is reduced.

The invention relates to the technical field of engineering, and discloses an engineering scaffold with a feeding function, which comprises a base, folding frames are hinged to two ends of the base, a working plate positioned on the inner sides of the two folding frames is arranged above the base, a lifting mechanism passing through the folding frames and connected with the working plate is arranged in the base, and a plurality of supporting pieces are arranged at the bottom of the base. A folding frame is arranged on the base, a vertical section of the folding frame is slidably sleeved with a limiting frame, a local lifting mechanism capable of moving up and down is arranged on the working plate, and a limiting mechanism for limiting the limiting frame is arranged in the folding frame. And a worker can be prevented from climbing on the working plate before working, so that the probability of casualties caused by engineering construction of the worker is reduced, and the safety is improved.

The utility model provides a high polymer material filling device for an embedded track. The high polymer material filling device comprises a track trolley and a filling mechanism arranged on the track trolley, the small rail car comprises a car body and idler wheels which are connected with the car body and can walk on a rail. The filling mechanism comprises a material storage box body, a material outlet formed in the outer side of the material storage box body and a flow guide groove connected with the material outlet, and a valve assembly is arranged at the material outlet. According to the polymer material pouring device for the embedded track, manual operation is replaced for polymer pouring construction of the embedded track of a rail bearing steel tank, the whole device is easy to operate and convenient to use, the construction quality and efficiency of on-site polymer pouring are guaranteed, and meanwhile waste of labor and materials is reduced.

The invention provides a concrete surface layer anti-skid groove pressing device and a construction method, and the concrete surface layer anti-skid groove pressing device comprises a guide part which is arranged on a concrete surface layer to position a pressing route; the pressing part comprises a support body, a pressing wheel assembly and a positioning assembly, the pressing wheel assembly is rotationally connected with the support body so as to press the anti-skid groove in the concrete surface layer, and the positioning assembly is also rotationally connected with the support body so as to roll on the guide part. According to the using method of the concrete surface layer anti-skid groove pressing device, the guide component is adjusted to position the pressing route, and the support body drives the positioning assembly to roll on the guide component so as to control the pressing wheel assembly to move along the pressing route. The construction method has the beneficial effects that the construction quality of the anti-skid groove can be guaranteed under various construction conditions, the structure is simple, the machining cost is low, and the construction efficiency and the construction quality can be guaranteed.

The utility model belongs to the technical field of pump station maintenance, and particularly relates to a safe hoisting tool for pump station maintenance, which comprises a portal frame and a stabilizing component arranged outside the portal frame, the stabilizing assembly comprises an electric hoist crane, a first rope and a second rope, and the electric hoist crane is installed on the outer side of the end of the portal frame. Through the stabilizing ball and the flow choking ring, when the copper suspension cage shakes under external force, liquid in the stabilizing ball can be driven to shake, due to the chamfers of the flow choking ring, the liquid can easily enter the flow choking ring, the liquid is difficult to flow out of the flow choking ring, and when the liquid easily enters the flow choking ring, the liquid can be prevented from flowing out of the flow choking ring. The stabilizing balls can quickly respond to external vibration or wind action, the stabilizing balls and internal liquid can immediately generate damping force, vibration energy starts to be absorbed and dispersed, shaking caused by the fact that the copper cage is driven by strong wind is reduced, and construction efficiency and life safety of workers are guaranteed.

The invention discloses a separable pile tip type pile casing supporting structure and a separation construction method.The separable pile tip type pile casing supporting structure comprises a pile casing, a pile tip and a chain cable, the pile tip of the pile casing is formed by splicing two pile tip bodies, and the two pile tip bodies are connected in a relatively rotating mode through a connecting piece; the connecting piece is provided with a locking part which is used for preventing the two pile tip bodies from rotating relatively after the two pile tip bodies are spliced and connected together, clamping parts are arranged on the sides, back to the tip ends, of the two pile tip bodies correspondingly, and the two clamping parts are combined to form a clamping groove when the two pile tip bodies are spliced and connected so that a pile casing can be detachably clamped; the chain cable is connected between one pile tip body and the pile casing, the pile tip can be kept connected to the pile casing when being separated from the pile casing, a relative rotation space can be provided for the two pile tip bodies, the pile tip can be separated from the pile casing, pile casing construction can be better completed, and it is ensured that sediment, soil accumulation and the like do not exist in the pile casing.

The invention discloses a roof interlayer water vapor discharging device and a construction method, and belongs to the technical field of buildings. The roof interlayer water vapor discharging device comprises a ventilation connecting pipe head, the interior of the ventilation connecting pipe head is hollow, the top of the ventilation connecting pipe head is provided with a vertical pipe connector, the upper portion of the vertical pipe connector is communicated with an exhaust vertical pipe, the top of the exhaust vertical pipe is provided with a bent pipe, the bent pipe is bent by 180 degrees, one end of the bent pipe is communicated with the exhaust vertical pipe, and the other end of the bent pipe is communicated with a straight pipe; fan blades are arranged in the straight pipe, a solar panel is installed on the top of the bent pipe, and the solar panel is connected with the fan blades through an electric wire. The problems that due to accumulation of water vapor in an existing roof heat preservation layer, a roof structure is damaged, dehumidification operation is inconvenient to operate, and cost is high are solved. Through the arrangement of the ventilation pipe connector, the horizontal ventilation groove pipe, the vertical pipe, the bent pipe, the straight pipe with the fan blades, the solar panel and the electric wire, it is ensured that water vapor in the heat preservation layer is effectively removed through the combined action of the parts.

The invention provides a span-by-span type bored pile construction method which comprises the following steps: S1, measuring and positioning, applying and driving a first row of steel casings, and constructing bored piles; s2, a steel casing accessory is installed on the steel casing, and the steel casing is connected with a main beam; s3, secondary beams are erected on the main beams; s4, beam upper panels are laid on the secondary beams, and a working platform is formed; s5, the construction equipment moves forwards in the laying direction of the working platform, and construction of the next row of steel casings is completed; and S6, the steps S2-S5 are repeated till all the drilled piles are constructed. According to the span-by-span type bored pile construction method and the construction platform, auxiliary piles and auxiliary platforms do not need to be additionally arranged, an overwater workboat does not need to be used either, the span-by-span type construction mode is adopted, the construction efficiency and convenience of overwater hole rotating piles are reserved, and fording bored pile construction which is difficult to enter a site and small in scale is facilitated; the prefabricated platform structure is adopted, building and dismantling are more convenient, different building requirements are met, and efficiency is higher.

The invention relates to the field of dock gate mounting equipment, and particularly discloses a dumping type dock gate mounting structure and a mounting method.The mounting structure is characterized in that wall sealing structures are arranged at black ridges of a dock gate, winches, first pulley blocks and winches are arranged on shores on the left side and the right side, and the dumping type dock gate is pulled to be subjected to posture adjustment on the sea surface; a trunnion at the bottom of the dumping type dock gate is connected into the hinged support bearing seat, so that the sealing performance of the dock gate is checked after the dock gate is installed. The horizontal precast block and the vertical precast block are installed and adjusted correspondingly, and the precision of the embedded part is improved; meanwhile, the dumping type dock gate is transported from the sea surface, the posture of the dumping type dock gate is adjusted through a winch, a first pulley block and a winch, the dock gate is smoothly installed on a hinged support bearing seat, and overall installation is completed; the device is not limited by the size of the toppling dock gate, the installation precision is high, and the construction efficiency is guaranteed.

The utility model discloses a boiler flue gas duct for fine construction, which belongs to the field of boiler flue gas ducts and comprises a flue gas duct wall, a support plate, support legs, a clamping plate, an angle steel belt, a thermal insulation layer, a reinforcing mesh and a protective layer. The specification and the size of the flue wall are determined according to data statistics, uniform blanking, prefabrication and splicing part division are carried out, finally hoisting and assembling are carried out on site, after the flue wall is assembled and spliced, the heat preservation layer is installed on the flue wall, and the heat preservation layer carries out heat preservation and heat insulation on the flue wall. The reinforcing mesh on the inner side of the heat preservation layer can increase the firmness of the heat preservation layer plate and prevent the heat preservation layer from cracking, the protection layer is fixed to the clamping plate after the heat preservation layer and the clamping plate are installed, the functions of rain prevention, wind shielding and the like are achieved for the clamping plate and the heat preservation layer, fine construction is conducted on installation of the smoke and air duct, and the smoke and air duct has enough strength, rigidity and stability. Strong vibration is avoided, the construction quality is improved, and the construction efficiency is guaranteed.

The present invention relates to the technical field of power grid construction management, and specifically discloses a method for optimizing tunnel power grid construction, including state judgment, which uses a state coefficient as a basis to judge whether a crushing device can normally complete all construction of a current construction section; if the judgment result in the judgment cycle is that it cannot be completed normally, the drum speed of the crushing device is adjusted according to an adjustment rule, and the state coefficient obtained after the speed is adjusted is re-judged until the state judgment of S4 is passed. The present invention can judge whether the device can successfully complete all construction of the current construction section in the current state based on data generated during the construction process of the crushing device, and avoid the problem of insufficient efficiency of the crushing device and inability to complete the construction as planned due to rapid failure of the cutter head as much as possible. Compared with frequent early replacement of the cutter head or arranging spare crushing equipment, a lower-cost processing solution is provided, and the construction efficiency can be maintained to the greatest extent to ensure that the construction process is not disordered.

The utility model belongs to reinforcing steel bar conveying technical field discloses a conveying device, including conveying subassembly and shift subassembly, conveying subassembly includes conveying drive mechanism, conveying spare and positioning portion, conveying drive mechanism can drive conveying spare along first direction removal, can push material removal when conveying spare removal, positioning portion sets up in conveying spare second direction's one side, first direction and second direction are at the angle setting, shift subassembly includes shift drive mechanism and shift spare, and shift spare installs in the output end of shift drive mechanism, when conveying spare of conveying subassembly passes through shift spare, shift spare can take material along second direction removal and abut on positioning portion. In the utility model, conveying subassembly is used for conveying material along first direction normally, and shift subassembly is used for shifting material in second direction alignment, avoids the scattered disorderly of output material in second direction, thereby does not need to take device and positions the clamping of taking device, makes the clamping jaw movement positioning process of taking device simple.

The utility model discloses an anti-clogging screw pile used for a trestle in a complex terrain, which comprises an anti-clogging screw pile body, the anti-clogging screw pile body comprises a pile body, the upper end of the pile body is a pile top, and the lower end of the pile body is provided with a pile tip; the grouting holes are formed in the pile body or the pile tip in a penetrating mode or formed in the pile body and the pile tip; the anti-blocking cover is detachably mounted on each grouting hole; and the prestress bearing part is arranged on the outer surface of the pile body and used for increasing the friction force between the pile body and soil and improving the lateral stability and the bearing capacity of the pile. According to the utility model, blockage in the grouting process can be prevented, and the grouting quality and the construction efficiency are ensured; in addition, the anti-blocking cover can prevent sundries such as soil or gravels in the screw pile from entering the grouting pipeline, the purity of the grouting material is guaranteed, the grouting material can be injected into the screw pile more evenly, and the grouting efficiency and quality are improved.

The utility model relates to the technical field of greenhouses, in particular to a greenhouse film feeding device for a greenhouse. The device is arranged on the two sides of a greenhouse frame and comprises a film line pay-off frame, a film line take-up frame and a greenhouse film tensioning assembly, a greenhouse film line is arranged on the film line pay-off frame, the film line take-up frame is arranged at the position, corresponding to the film line pay-off frame, of the other side of the greenhouse frame, and the greenhouse film line is connected with the film line take-up frame after being wound around an arch frame of the greenhouse frame. The greenhouse film tensioning assembly is connected with the greenhouse film line, and the greenhouse film tensioning assembly is connected with a greenhouse film. The device is good in winding displacement accuracy and high in film feeding efficiency, an operator does not need to climb to a greenhouse frame, the construction safety is improved, the construction speed is increased, and the greenhouse construction efficiency is guaranteed. The utility model is mainly applied to the field of greenhouse film covering.

The utility model relates to the technical field of building climbing equipment, in particular to a mutual climbing device for a building machine, which comprises a climbing guide rail, a plurality of pre-embedded anti-falling assemblies and a plurality of lifting assemblies, and the climbing guide rail is arranged on the pre-embedded anti-falling assemblies through the lifting assemblies; the lifting assembly comprises an upper lifting structure arranged on the climbing guide rail, a climbing oil cylinder arranged on the upper lifting structure and a lower lifting structure arranged on the climbing oil cylinder, and the lower lifting structure is detachably connected with the embedded anti-falling assembly; the upper lifting structure and the lower lifting structure have a driving state and a self-lifting state. When the lifting assembly needs to be moved upwards after climbing, the upper lifting structure and the lower lifting structure are switched to be in a self-lifting state, the lower lifting structure is separated from the embedded anti-falling assembly, the climbing oil cylinder operates to drive the lifting assembly to be wholly self-lifted, and the lifting assembly does not need to be manually transferred and transported in the whole process; and the construction efficiency and the construction safety can be effectively ensured.

The invention discloses a method for arranging a dam crest formwork increasing area on a core-wall rockfill dam to control water storage cracking and an earthquake response whip effect, a formwork increasing rockfill area is arranged at the position 1 / 3-1 / 5 of the dam height below the dam crest, the filling standard is controlled by adopting double indexes of porosity and relative density, it is guaranteed that the formwork increasing rockfill area reaches the full compaction degree, and the dam crest formwork increasing area is arranged at the position 1 / 3-1 / 5 of the dam height. The crack of the core-wall rock-fill dam is controlled, the whip effect of earthquake response of the rock-fill dam is effectively reduced, and the method for controlling the crack of the dam and improving the anti-seismic safety performance is expected to be achieved.

The plane base prefabricated part comprises a fastening body and a waterproof roll, an upper fixing piece structure and a lower fixing piece structure which are distributed in the axial direction of the fastening body and extend in the radial direction are arranged on the fastening body, the upper end side of the upper fixing piece structure is flush with the upper end of the fastening body, and the lower end side of the lower fixing piece structure is flush with the lower end of the fastening body. The waterproof roll is arranged between the upper fixing piece structure and the lower fixing piece structure and extends out of the lower fixing piece structure, and mounting holes are formed in the upper end and the lower end of the fastening body respectively. The anchoring structural part comprises an anchoring part and the plane base prefabricated part, and the anchoring part is fixedly connected with the mounting hole in the lower end of the fastening body. According to the plane base prefabricated part and the anchoring structural part, the fastening body sinking type structural design is adopted, and the original roof drainage design cannot be affected; economical and attractive effects are achieved, stress is uniform, and construction and installation are more convenient and simpler.

The invention relates to the technical field of photovoltaic supports, in particular to a sloping roof photovoltaic support and a construction method thereof, and the photovoltaic support comprises a plurality of back pull assemblies, a plurality of ground beam assemblies and a plurality of photovoltaic mounting base assemblies. The back pull assembly comprises a rear wall inclined strut, a rear wall transverse strut and a back pull, one end of the rear wall inclined strut is arranged on the rear wall of the house, the other end of the rear wall inclined strut is arranged on the back pull, one end of the rear wall transverse strut is arranged on the rear wall of the house, and the other end of the rear wall transverse strut is arranged on the back pull; the ground beam assembly comprises a front wall inclined strut, a front wall transverse strut and a ground beam, one end of the front wall inclined strut is arranged on the front wall of the house, the other end of the front wall inclined strut is arranged on the ground beam, and one end of the front wall transverse strut is arranged on the front wall of the house. After being installed, the support is not connected with the roof, and an original waterproof layer or waterproof tiles of the roof are prevented from being damaged; by arranging the positioning assembly, positioning installation of the back pull and the ground beam is conveniently achieved, and the construction efficiency is improved.

The invention discloses an efficient guide hole inserting and driving method for a rock-entering steel sheet pile. The method comprises the following steps that S1, a cofferdam area is constructed, a construction platform is built, and a lowering system is installed; s2, the ring beam is lowered through a lowering system; s3, hole guiding construction is conducted, hole guiding is conducted through hole guiding equipment, a set of holes are guided from the corner end of the upstream small pile mark side, and then hole guiding is sequentially completed according to the clockwise sequence; and S4, steel sheet pile inserting and driving construction is conducted, specifically, the steel sheet piles are sequentially inserted and driven to the designed elevation along the guide holes with the ring beam as a guide frame. The construction method is suitable for the engineering geological conditions that the cofferdam depth is large and a main rock stratum is strongly-weathered argillaceous siltstone, the perpendicularity of inserting and driving of the steel sheet pile and the buried depth are effectively controlled, hole guiding is conducted in the mode that a rotary excavating drill and a double-flat-head single-screw drill bit are adopted to drill the weathered rock into pieces (not taken out), and the construction efficiency is ensured; a ring beam is lowered to serve as a guide frame structure to guide and limit drilling guide holes and steel sheet pile inserting and driving, so that the perpendicularity is guaranteed.

The utility model relates to a mold bag concrete thickness measuring probe, which comprises a cylindrical probe body, the lower end of the probe body is conical, the length of the probe body is 35cm, the diameter of the probe body is 0.6 cm, the upper end of the probe body is provided with a hand-held handle, the probe body is provided with scale marks and a vertical sliding chute, the sliding chute is provided with a buckle, the buckle comprises an installation block and an indication block, and the installation block is provided with an indicating block. The indicating block is arranged below the mounting block, the indicating block is fixedly connected with the mounting block, and the mounting block is mounted on the sliding groove through an elastic clamping piece. Due to the adoption of the technical scheme, the needle body with the scales and the buckle are combined, the thickness of the mold bag concrete can be rapidly measured, the reworking phenomenon caused by the fact that the thickness does not meet the design specification requirement in the construction process of the mold bag concrete is avoided, the construction efficiency is guaranteed, and the construction quality is improved.

The utility model discloses a fire-fighting pipeline threaded connection structure which comprises a pipeline, internal threads are arranged on the inner wall of one end of the pipeline, external threads corresponding to the internal threads are arranged on the outer circle face of the other end of the pipeline, blocking strips are fixedly installed on the upper side and the lower side of the pipeline, and a corresponding sealing gasket is arranged at the end, with the external threads, of the pipeline in a sleeved mode. The internal threads and the external threads are arranged at the two ends of the pipelines respectively, the pipelines are sequentially connected together in a threaded mode, operation of workers is facilitated, the construction difficulty is lowered, the internal threads can be formed in advance during factory machining, site construction workers only need to measure the size and sleeve the external threads, and the construction efficiency is improved. And in addition, the blocking strips are arranged on the surface of the pipeline, when the pipeline is placed on the ground, a constructor accidentally steps on the pipeline, the blocking strips abut against the ground, the situation that the pipeline slips when rotating is prevented, and then the situation that the constructor falls and is hurt is avoided.

The utility model belongs to the technical field of building structure construction equipment, and particularly relates to a mounting auxiliary device for a steel structure arc-shaped stiffening plate, which comprises a steel plate. An arc-shaped stiffening plate to be mounted and welded is arranged on the steel plate; the whole arc-shaped stiffening plate is an L-shaped steel plate, and an installation auxiliary device is arranged above the arc-shaped stiffening plate. The mounting auxiliary device comprises a component plate clamped on the arc-shaped stiffening plate; the component plate is an inverted L-shaped steel plate, the bottom of the component plate is welded to the surface of the steel plate in a spot welding mode, a positioning groove with an inner opening is formed in the right-angle side of the inner side of the component plate, and a pressing part is further arranged at one end of the top of the component plate. A protruding lug plate A and a protruding lug plate B which are symmetrically arranged are welded to the end face of the outer side of the positioning groove. The device is simple in structure, convenient to use for a long time, good in fixing and positioning effect, capable of rapidly adjusting deformation of the steel plate, capable of enabling the stiffening plate to be attached to the steel plate, easy to weld and capable of guaranteeing construction efficiency.

This utility model relates to the field of power transmission line technology, specifically to a power transmission line construction crossing frame, comprising a crossing frame body and two support members. Support frames are fixedly installed at both ends of the bottom of the crossing frame body, and a reinforcing component is provided on one side of each support frame and the top of the crossing frame body. Support feet are installed at both ends of the bottom of each support frame, and a traveling mechanism is installed at the bottom of each support foot. A slide rail is fixedly installed on the top of each support member, and the traveling mechanism is slidably mounted on the slide rail. This utility model effectively enhances overall stability through the synergistic effect of the reinforcing base, steel rope, reinforcing plate, and stop in the reinforcing component, overcoming the problem of insufficient stability in traditional crossing frames. It also allows the crossing frame to slide on the slide rail, greatly improving flexibility and increasing the range of motion of the crossing frame, enabling it to adapt to complex and changing construction environments and ensuring the efficiency of power transmission line construction.

The invention relates to a soft rock tunneling drill bit and system, in particular to the technical field of tunnel engineering, by arranging a drill bit body and an air compression mechanism, during use, the arranged air compression mechanism is used for compressing and storing external air into a containing cavity, and when the drill bit body conducts tunneling operation on a soft rock tunnel face, the air compression mechanism is used for compressing and storing the external air into the containing cavity; the compressed air stored in the containing cavity is released to the soft rock tunnel face through the release channel in the drill bit body to form impact force so that soft rock corresponding to the drill bit body can be broken, and the soft rock in the area corresponding to the drill bit body can be broken on the soft rock tunnel face; according to the invention, the excavation and tunneling operation of a tunnel in a soft rock area can be realized without carrying out controlled blasting on a soft rock tunnel face, hidden dangers such as under-excavation or over-excavation in a controlled blasting operation process can be avoided, and compressed air is used for breaking the soft rock tunnel face; and excavation construction of the soft rock tunnel can be achieved without drilling independently, and the construction efficiency and the forming quality of the tunnel are guaranteed.

The invention relates to the field of cutting equipment, in particular to intelligent cutting equipment for glass mechanical manufacturing, which comprises a fixed seat, a cutting machine, a saw blade and the like, a semicircular movable groove is formed in the fixed seat; a cutting machine is rotationally mounted on the fixed seat; a rotating shaft is arranged on the cutting machine, and the circle center of the rotating shaft and the circle center of the semicircular movable groove are located at the same point. A saw blade is mounted on the cutting machine; the front side of the saw blade is provided with a frosted surface facilitating manual polishing of a workpiece, and the frosted surface is in an inwards-concave state and is not located on the same plane with the cutting edge of the saw blade. The first fixing block, the second fixing block, the third fixing block and the bearing frame are matched with one another to drive the cutting face of a workpiece to move up and down on the frosted face of the saw blade, the workpiece is ground, and therefore the workpiece does not need to be ground manually and additionally through a grinding machine, the construction space is saved, the use convenience of equipment is improved, and the working efficiency is improved. Meanwhile, the construction efficiency is guaranteed, and the safety of a construction site is guaranteed.

The utility model discloses portable protection equipment for deep foundation pit operating personnel, and relates to the technical field of building construction. The problems that in the prior art, protection equipment cannot protect deep foundation pit operators and cannot adapt to deep foundation pits of different sizes are solved. Comprising two opposite side plates, opposite side cover plates are arranged at the top ends of the side plates, a middle cover plate is connected between the side cover plates, the middle cover plate is provided with guide holes matched with the side cover plates, the free ends of the side cover plates are arranged in the guide holes in a sliding mode, a transverse telescopic rod is arranged between the side plates, and the length of the guide holes is larger than the maximum telescopic length of the transverse telescopic rod. The portable protection equipment for the deep foundation pit operating personnel is used for protecting the deep foundation pit operating personnel, the side plates, the side cover plates and the middle cover plate form a protection cover to be placed into a deep foundation pit to effectively protect the operating personnel in the deep foundation pit, and the distance between the two side plates is adjusted according to sliding of the side cover plates and the middle cover plate; the device is suitable for safety protection of deep foundation pits of different sizes and is wide in application range.