37results about How to "Rock breaking speed" patented technology

The invention belongs to the field of building construction and particularly relates to a single-waist multi-leaf hose bit for a bored pile and a drilling construction method thereof. The technological process comprises the steps of positioning and sampling, centering in position, forming a hole, clearing the hole for the first time, descending a reinforcement cage, descending a guide pipe, clearing the hole for the second time and pouring concrete. The single-waist multi-leaf hose bit for the bored pile comprises a single-waist multi-leaf taper bit body. A positioning and guiding cylinder is fixedly welded to the end of the single-waist multi-leaf taper bit body. A plurality of positioning and guiding cylinder tungsten steel heads are distributed on a circumferential edge opening of one end of the positioning and guiding cylinder. The single-waist multi-leaf hose bit of the bored pile and the drilling construction method thereof have the advantages that the directivity is good, the hole forming perpendicularity is high, the wall protecting effect is good, deslagging is convenient, the hole forming speed is high, and the rock breaking speed is high.

The invention discloses a novel rock breaking method and a rock breaking hob and relates to the technical field of tunnel boring. The novel rock breaking method and the rock breaking hob are applied to the rock breaking operation of tunnels; the problems that a hob is seriously worn and is short in service life in the existing rock breaking method are solved. According to the chipping rock breaking method, an included angle beta is formed between a hob blade and a normal of a tunnel face; after the pressure is applied to the disc-shaped hob, the blade penetrates into rock and a dense kernel is generated at the front end of the blade; the dense kernel continuously expands to tear off surrounding rock and forms a breaking area; rocks on a dangling face are chipped by expanding the breaking area; the blade of the disc-shaped hob is mainly used for bearing a shear force; the strength of the shear force is 6-9 percent of the compressive strength of the rock. The chipping rock breaking method has the advantages that firstly, the hob blade is mainly used for overcoming the shear resisting strength of the rocks, the compressive strength of a hob single spindle is greatly reduced, the blade of a hob ring is slow in wear and the hob is long in service life; secondly, the chipping rock breaking method is high in rock breaking and high in tunneling efficiency and is particularly suitable for excavating and tunneling of full-section hard-rock geology; thirdly, consumed power of tunneling equipment is lower.

The invention relates to a self-advancing type high-pressure jet sprayer for radial horizontal well drilling, which mainly comprises a shell, a turbine rotor, wear-resistant steel balls, a baffle plate and the like. The self-advancing type high-pressure jet sprayer is technically characterized in that a tip, a forward spray nozzle and a backward spray nozzle are processed on the shell, hard alloy is welded on the outer surface of the shell, the turbine rotor is mounted in the shell, spherical grooves are processed at the upper end and the lower end of the turbine rotor, the turbine rotor is positioned via the upper wear-resistant steel ball and the lower wear-resistant steel ball, the upper wear-resistant steel ball is placed between the inside of the shell and the corresponding spherical groove of the turbine rotor, the lower wear-resistant steel ball is placed between the turbine rotor and a spherical groove on the baffle plate, the shell is connected with the baffle plate in a threaded manner, and four to six water injection holes are uniformly distributed on the baffle plate. The self-advancing type high-pressure jet sprayer is simple in structure and reliable in work, and can be widely applied to radial horizontal well drilling operation.

The invention relates to a generating device for a static crushing agent. The generating device comprises a barrel-shaped shell. The shell is sequentially filled with a combustible agent, an electrolyte solution and the static crushing agent from inside to outside in a layered manner. The combustible agent wraps an electronic igniter. A blocking block is arranged on an opening of the shell to sealthe shell. According to the technical scheme, the combustible agent, the electrolyte solution and the static crushing agent are contained in the shell in the layered manner, the shell is firstly placed in an expansion hole in rock during rock crushing, and the combustible agent is ignited through the electronic igniter; and the combusted combustible agent releases a large amount of heat, and thetemperature of the electrolyte solution and the static crushing agent in the shell rises. Due to the fact that the electrolyte solution is close to the combustible agent, the electrolyte solution canbe fast atomized. The atomized electrolyte solution is in contact with the heated static crushing agent, the static crushing agent can be fast cured and expanded in sealed space, and the rock crushingspeed is increased.

The invention discloses a self-propelled high pressure water jet drill mainly comprising a bit body, turbine rotors, an upper wear-resistant steel ball, a lower wear-resistant steel ball and a baffle.The self-propelled high pressure water jet drill is characterized in that a blind hollow shaft is arranged in the center as a support; an annular outlet is disposed on the blind hollow shaft; the front end of the blind hollow shaft is connected to the front end of the bit body; a forward nozzle and a backward nozzle are arranged on the bit body; both sides of the left and right side of the blindhollow shaft are symmetrically installed with the turbine rotor; both ends of the upper and lower end of the turbine rotor are processed with a spherical groove; with the upper and lower wear-resistant steel balls used for positioning, the upper wear-resistant steel ball is placed between the bit body and the spherical groove of the turbine rotor, and the lower wear-resistant steel ball is placedbetween the turbine rotor and the spherical groove of the baffle; the bit body and the internal baffle thereof are connected through screw threads. The self-propelled high pressure water jet drill hasthe advantages of realizing rapid continuous drilling of long holes in various rock formations, and having simple structure, reliable work and wide application prospects.

The invention discloses a self-propelled intermittent pulse high-pressure spray head for a radial horizontal well. The spray head is provided with a shell which is connected with a concave-type drainage plate through a thread, a spherical groove is formed in the inner wall of the shell, and the two ends of a horizontal shaft are provided with wear-resistant steel balls which are clamped in the spherical groove formed in the inner wall of the shell respectively; an overturning plate is arranged to be hollowed, and the horizontal shaft penetrates through the center. The concave-type drainage plate has a drainage effect and drives the overturning plate to conduct periodic rotation, and the drilling and rock breaking efficiency is improved; high-pressure drilling fluid forms an eddy current under the stirring action of the overturning plate, and the rock breaking speed is increased; along with rotation of the overturning plate, the drilling fluid below the drainage baffle produces an excited oscillation effect, and the energy of the fluid at the outlet of spray nozzles is increased; the groove is formed in the upper portion of the concave-type drainage plate, and the self-propelling capacity of the spray head is improved; the overturning plate adopts a mode that the mass is distributed nonuniformly, when the overturning plate rotates, the spray head is driven to jump continuously, and therefore the friction force between the spray head and a stratum is reduced, and the self-propelling capacity of the spray head is improved.

The invention discloses a spiral diamond drill bit. The drill bit includes a spiral rod, an extending block and a supporting block. A transition joint is installed at the upper end of the spiral rod,and stabilizing pieces are arranged at the upper end of the transition joint; a bracing piece is arranged at the upper ends of the stabilizing pieces, spiral connectors are fixed to the border of theupper end of the bracing piece, flank bases are fixed to the upper ends of the spiral connectors, and toothed addenda are fixed to the upper ends of the flank bases; the extending block is fixed to the portion among the flank bases, auxiliary pieces are fixed to the upper end of the extending block, a groove is formed in each stabilizing piece, a convex piece is fixed to one side of each groove, and the supporting block is arranged on the border of the interior of the bracing piece. According to the spiral diamond drill bit, toothed addenda are arranged on the surfaces of both the flank basesand the auxiliary pieces and can directly achieve an anti-wearing effect; through cooperation between the stabilizing pieces and the bracing piece, the impact toughness is enhanced; since the spiral connectors are fixed to the interior, the drill bit can have high impact toughness, great anti-wearing performance and high rock breaking speed, and the drilling efficiency is improved.

The invention relates to a thermal shock device and method for a shield tunneling machine, and belongs to the technical field of shield construction. The thermal shock device comprises a temperature measuring device arranged on a cutter head, heating pipelines and cooling pipelines, wherein the heating pipelines and the cooling pipelines are parallelly arranged on the end surface of the cutter head of the shield tunneling machine and uniformly distributed in the circumferential direction of the cutter head; the position, away from the end surface of the cutter head, of each heating pipeline isprovided a plurality of ignition devices which are sequentially distributed in the length direction of the heating pipeline, and heating switches used for controlling the ignition devices; the position away from the end surface of the cutter head, of each cooling pipeline is provided a plurality of cooling spray heads sequentially distributed in the length direction of the cooling pipeline, and cooling switches used for controlling the cooling spray heads; and the ignition devices and the cooling spray heads are lower than cutters on the cutter head. By utilizing a thermal shock principle, aspecial competent formation is rapidly heated and cooled, a lot of heat exchange is quickly generated, shock thermal stress is generated inside, and shock fracturing is caused, the mechanical propertyof the special competent formation is reduced, the rock breaking speed is increased, and cutter head abrasion is reduced.

The invention relates to a hydraulically-driven multi-dimensional plasma combined drill bit and a well drilling method thereof. The hydraulically-driven multi-dimensional plasma combined drill bit comprises a drill rod, a drill bit body, a plasma turntable gear, a plurality of plasma devices, a mechanical cutting gear and a power generator, a slurry turbine is arranged in the drill rod, and the bottom of the slurry turbine is connected with the power generator; the bottom of a cylinder on the outer edge of the turbine blade is fixedly connected with a turntable switch, the turntable switch is provided with a plurality of discharge switches in the circumferential direction, each discharge switch extends into an annular slide rail, a pair of cables also extends into the annular slide rail, and the end parts of the pair of cables are provided with switch electric brushes; and an upper gear is welded to the lower end of the turntable switch, the lower portion of the upper gear is engaged with two connecting gears, the two connecting gears are coaxially fixed to the plasma turntable gear and the mechanical cutting gear respectively, and the plasma turntable gear and the mechanical cutting gear are exposed out of the bottom of the drill bit body. Mechanical cutting and plasma impact are combined for rock breaking, and the rock breaking speed is increased.

The invention relates to a laser drilling device. The laser drilling device comprises a ground part and an underground part, in a wellbore below the ground, a communicating guide pipe downwards extends from the ground into the wellbore and reaches the bottom of the wellbore, a measurement-while-drilling guiding instrument and a laser are mounted in the guide pipe, a cable downwards extends into the wellbore and is connected with the measurement-while-drilling guiding instrument and the laser, and stabilizers are mounted in an annular cavity between the guide pipe and the wellbore; a casing head is mounted at a ground wellhead, and the guide pipe penetrates through the casing head to be connected to a gas outlet hole of a gas compression booster station to form a gas inlet channel; and thewellbore is connected with the casing head through a surface layer casing, the casing head is connected with the other guide pipe, and the guide pipe passes through a grit catcher, a dust remover anda liquid-gas separator and then is connected to a gas inlet hole of the gas compression booster station to form a circulating channel for dust discharge, purification and pressurization. The drillingspeed is high, the drilling cycle is saved, and drilling benefits are increased.

The invention discloses a drill bit and a drilling device. The drill bit comprises a joint and a drill bit body; a hydraulic oscillation cavity is formed in the joint, and used for making drilling fluid flowing into the hydraulic oscillation cavity form a self-excited oscillation effect in the hydraulic oscillation cavity, pressure fluctuation is generated, the longitudinal vibration of the drillbit is driven, the drill bit transmits high-frequency vibration to rocks in contact, and thus inducing the rocks to undergo resonance failure and assisting the drill bit to break the rocks; and a nozzle is arranged in a drill bit body, an outlet of the hydraulic oscillation cavity communicates with the nozzle, and the nozzle is used for ejecting the drilling fluid flowing out of the hydraulic oscillation cavity out the drill bit. According to the technical scheme, the rock breaking speed can be increased, the service life of drilling tools is prolonged, a smooth and stable borehole is advantageously formed, and the drilling efficiency is improved.