33 results about "Terrane" patented technology

The invention relates to a rotary disc deep base point displacement meter and a measuring method thereof, which are suitable for measuring the axial displacement along drilling holes, of the insides of surrounding rocks or foundations in roadways, tunnels, underground chambers and foundation engineering, and monitoring the stability. The displacement meter mainly comprises measuring cylinders, orifice devices, a fixer, a base point anchor head and a measuring connecting line. The measuring method sends the displacement meter into a measuring drilling hole according to different depths measured; when the surrounding rocks with different depths on the circumference of the underground engineering move, the measuring cylinders on the outside of orifices automatically mark out the displacement distance of anchor points with different depths; when the base point anchor head and the orifice distance are varied, the measuring connecting line draws a cursor slider and compresses a spring, and the displacement variation length can be clearly read out through the scales displayed on the outer surfaces of the measuring cylinders; and the reading of various measuring cylinders after deformation are read and recorded, and the displacement of terranes of different measuring points can be obtained by deducting the reading with respective initial reading. The device is simple, has reliable overall structure and strong engineering adaptability, and is accurate to measure and convenient to assemble and measure.

An emitter of the bottom hole assemble(BHA)is used for generating transient state electromagnetism signal in the earth terrane. A receiver of the BHA is used receives the signals indicating the stratum resistivity and the distance to the stratum boundary. The shaft of the emitter and the receiver can be parallel or form angle with the shaft of the BHA. The emitter and the receiver are arranged on the pipe containing the incisal path BHA damping part for attenuating vortex. The damping part may comprise nonelectrical conductivity material, such as ferrite, on the outer surface.

The invention relates to a rotary disc deep base point displacement meter and a measuring method thereof, which are suitable for measuring the axial displacement along drilling holes, of the insides of surrounding rocks or foundations in roadways, tunnels, underground chambers and foundation engineering, and monitoring the stability. The displacement meter mainly comprises measuring cylinders, orifice devices, a fixer, a base point anchor head and a measuring connecting line. The measuring method sends the displacement meter into a measuring drilling hole according to different depths measured; when the surrounding rocks with different depths on the circumference of the underground engineering move, the measuring cylinders on the outside of orifices automatically mark out the displacementdistance of anchor points with different depths; when the base point anchor head and the orifice distance are varied, the measuring connecting line draws a cursor slider and compresses a spring, and the displacement variation length can be clearly read out through the scales displayed on the outer surfaces of the measuring cylinders; and the reading of various measuring cylinders after deformationare read and recorded, and the displacement of terranes of different measuring points can be obtained by deducting the reading with respective initial reading. The device is simple, has reliable overall structure and strong engineering adaptability, and is accurate to measure and convenient to assemble and measure.

The invention relates to a wear-resistant and impact-resistant drill bit used in the civil engineering and drilling engineering. 7Cr7Mo2V2Si steel is used as the base material for a main body of the drill bit. A wear-resistant Stellite190 cobalt-base alloy reinforcing layer is melted onto the surface of the drill bit. The upper section of the main body is equipped with a radially and outwards projecting hard alloy bar, the middle-lower section is equipped with a small hard-alloy pill-shaped convex pillar, and the lower section is equipped with a wedged YG11C-type tungsten-cobalt hard alloy cutting blades. The drill bit is wear-resistant and impact-resistant, provided with a double-function of soil cutting and rock crashing, and is suitable for the rapid and high-efficiency drilling work ina stony stratum with stones or terranes.

The invention relates to a portable terrane communicator for down-hole coal mine. Now traditional wired communication technology is still used in down-hole. When heavy accident occurs under coal mine, communication system suffers heavy destruction and can not transmit information in time, which results in loss of best rescuing opportunity, human life and possession. The inventive portable terranecommunicator using terrane as transmitting medium is composed of DSP modulation and demodulation circuit, CPU controller, vocoder, receiving and transmitting converter, A / D conversion circuit, amplification circuit, microphone, speaker, register, D / A conversion circuit, receiving and amplification circuit, smooth filter circuit, preamplifier circuit, transmitting amplification circuit, antenna. In the invention computer hardware technology and electronic element circuit technology are combined to change communication technology of using terrane as transmission medium into reality.

The invention discloses a method for combined mining of coal seam gas of a cutter column type old goaf and a lower coal seam. The method comprises the steps of first surveying a mine, constructing a horizontal well from the ground to the position which is 5-20 m under an old goaf base plate terrane, and performing coal seam gas extraction; when the coal seam gas extraction amount drops to 20%-40% of an initial value Q1, performing circulation of the extraction stopping-depressurization and extraction process; when the extraction amount drops to below 20% of Q1, performing fracturing of a coal and rock layer, performing horizontal well vertical section extension, installing a discharge and mining device, performing coal seam gas extraction, recording the extraction amount at the time as Q2; when the extraction amount drops to below 20% of Q2, injecting carbon dioxide gas for displacement, extracting the coal seam gas once again, and stopping the extraction until the coal seam gas extraction amount drops to 3 m3 / min. According to the method, the problems that an original extraction well drilling and old goaf contact area is limited and an extraction range is limited are solved, and the problems of high construction difficulty and low pore forming rate when the drilling construction is performed above a fissure zone are solved.

The present invention relates to a structure of slackening type blasting method and mat, which makes terrane of the blast area checking and slackening from mother rock by cursting force. The blasting method comprises a step of boring spaced blast holes, blasting lead connecting step of putting explosive into the holes and connecting the blasting lead; a blasting shield seting step, which set a steel plate member and an elastic member, and seting a blasting shield by welding a weight reinforcing member on the steel plate member; a blasting step for blasting an explosive.

The invention relates to statical indetermination equal-strength support anchor cable locking mechanism and a method thereof; the mechanism comprises a cylindrical bowl with a dished bottom, a lock sleeve arranged in the cylindrical bowl and clamping an anchor cable, and a spring arranged under the lock sleeve; the matching surface of the lock sleeve and the cylindrical bowl is a conical surface,and the lock sleeve is formed by the combination of four conical blocks. The cylindrical bowl, the lock sleeve and the spring of the anchor cable locking mechanism are sequentially sheathed on the anchor cable which is fixed by a stirring cartridge, the anchor cable pressed in the lock sleeve with the four conical blocks is divided and tightened along four directions so as to be connected with other anchor rods or anchor cables in the support, and when the anchor cable is broken in the high-stress area, as the lock sleeve arranged in the cylindrical bowl tightly wedges the anchor cable supported in the terrane, the top plate is prevented from delamination and collapse, the support force is greatly improved, and the safety of the underground personnel is effectively guaranteed; and the mechanism has simple structure, easy manufacturing technique, convenient use, reliable performance, good effect, and wide practicability to deep support.

The invention discloses a method for explosion and leakage increase of a low permeability sandstone uranium deposit, which includes steps as follows: A. blast holes are drilled through the overburden, the top rock of occurrence terrane to the proper position of the occurrence terrane from surface. An underreamer is used to locally ream the blast holes at the occurrence terrane to meet charging requirement; B. blasting cartridges are arranged in the blast holes in an uncoupling way; the detonator is waterproof; uncoupling charge for explosion comprises radial uncoupling charge and axial uncoupling charge; C. after the blasting cartridges are arranged properly, hole seal measures shall be taken to build up the blast holes; D. the blasting cartridges are initiated through short delay blasting which comprises short delay blasting inside the blast holes and short delay blasting between the blast holes. The recovery factor and the yield per unit of in-situ Uranium leaching are improved; theuranium deposit resource of low permeability sandstone type is used completely, thus alleviating the shortages of uranium resources.

The invention relates to an energy-saving rock stratum displacement real-time automatic monitoring instrument, which comprises a displacement sensing unit, an information acquisition and processing unit and a stay tensioning mechanism. The structure of the displacement sensing unit is as follows: both ends of a rotary shaft are fixed on a supporting plate and a shell respectively; an isolating disc is arranged in the middle of the rotary shaft; and a displacement transmission mechanism, a coded disc and a transferring support plate are arranged on the rotary shaft on both sides of the isolating disc in turn from the inside to the outside. The displacement transmission mechanism comprises the following two modes: one is stay transmission mode, and the other is gear and rack transmission mode. The energy-saving rock stratum displacement real-time automatic monitoring instrument realizes electroless operation in the state that a rock stratum has no displacement, is instantaneously connected with a high-resistance circuit when the rock stratum has measurable displacement, outputs corresponding measurable pulse signals and starts the information acquisition and processing unit; and thewhole measuring process realizes rock stratum displacement measurement with energy conservation and low energy consumption.