40 results about "Rift" patented technology

A latticing method for plotting rectangular net of isograms containing normal fault geological body structure includes carrying out pretreatment on scatter data and setting up index for it, carrying out pretreatment on fault layer data and setting up index for it, carrying out data search and interpolation for each lattice point to enable not to seek data point in all discrete point array for raising search speed of data greatly.

The invention relates to an exterior wall coating which comprises the following raw materials in parts by weight: 80-90 parts of a water based acrylic emulsion, 15-20 parts of a styrene-acrylic emulsion, 30-60 parts of nano bentonite, 3-4 parts of sodium carboxymethylcellulose, 2-3 parts of butyl methacrylate, 1-2 parts of dimethyl dimercaptoacetic tin isooctylate, 0.6-1 part of phenethyl phenol polyoxyethylene ether, 0.5-1 part of glass fiber, 0.8-1 part of 1, 2-di(triethoxy silicon base) ethane, 0.1-0.2 part of tributyl phosphate, 3-5 parts of a coalescing agent and 10-20 parts of deionized water. The produced coating disclosed by the invention is less in raw material loss, less in gel generation, simple in process, hard in film, good in luster, strong in impact resistance, difficult to crack, flexible in texture, strong in decoration, high in weather resistance and washing resistance, strong in adhesive force, long in service life, and free from special smell, heavy metals such as mercury and lead, and formaldehyde volatiles, so that the coating is in accordance with technical demand of environmental-friendly coatings. The coalescing agent is added, so that the coating is very high in stability, and efficient in adhesiveness and film-forming property. The compactness of the coating film is increased, and the film-forming quality is improved, so that a film has the advantages of strong adhesive force, no holes and rifts, uniform compactness and the like.

The present invention relates to a nearshore subaqueous fan conglomerate sedimentation unit body division method. The nearshore subaqueous fan conglomerate sedimentary unit body division method under the erratic event gravity flow spin back sedimentation effect control is established, with the accurate division of a rift lake basin steep slope belt nearshore subaqueous fan conglomerate sedimentation unit body as an object, on the basis of the research of a nearshore subaqueous fan sedimentation cause mechanism and a sink sedimentation simulation experiment, nearshore subaqueous fan conglomerate sedimentation unit body division identification and classification standards are established, with the nearshore subaqueous fan conglomerate sedimentation unit body division classification standard as a guidance, the seismic data and drilling data division of a nearshore subaqueous fan sedimentation unit body is carried out, with the seismic data and drilling data division of the nearshore subaqueous fan sedimentation unit body as a basis, with single well time-depth relation as a constraint, the crosswell comparison of the nearshore subaqueous fan sedimentation unit body is developed, the accurate identification and division of the rift lake basin steep slope belt nearshore subaqueous fan conglomerate sedimentation unit body are carried out, the nearshore subaqueous fan conglomerate sedimentation unit body can be accurately and effectively divided, and the spatial distribution range is determined.

The invention discloses a manufacturing method of a whole-piece bamboo-bunch veneer and an overlong bamboo-bunch laminated veneer lumber. The method comprises the specific steps that a raw material is selected and pretreated; bamboo wood is conveyed to brooming rolling equipment in a rift grain direction; the conveyed bamboo wood is broomed, beaten and rolled by the equipment, and is subjected to devillicate treatment after a plurality of periods to be manufactured into bunchiness fibers with uniform specifications; bunchiness fiber units that are arranged tightly and orderly in the rift grain direction are discharged; the bunchiness fiber units are sewn or bonded to ensure that the bunchiness fiber units in the same row are connected together; a bamboo-bunch veneer is manufactured; the whole-piece bamboo-bunch veneer is manufactured; a plurality of whole-piece bamboo-bunch veneers are overlaid, assembled, and subjected to cold pressing and heat pressing treatment; and the finished overlong bamboo-bunch laminated veneer lumber is manufactured. The whole-piece bamboo-bunch veneer and the overlong bamboo-bunch laminated veneer lumber manufactured by the method are uniform in density; the raw material can be saved greatly on the premise that national standards are met; bamboo green and tabasheer in the raw bamboo wood can be kept; and bamboo wood consumption and waste of manpower and material resources caused by removing the bamboo green and the tabasheer in the prior art can be avoided.

The invention provides a method for identifying a rift lake basin steep slope zone nearshore subaqueous fan sedimentary facies belt, which comprises the steps of 1, acquiring seismic data of a block,conventional well logging data of a drilled well and well logging lithologic data; 2, determining single well sedimentary facies by using single well synthetic record calibration; 3, summarizing seismic facies characteristics of the nearshore subaqueous fan sandstone rock through a well-tie seismic section according to each single well synthetic record calibration; 4, identifying a sedimentary facies belt interface according to the seismic facies characteristics of the nearshore subaqueous fan sandstone rock; 5, dividing the sedimentary facies belt interface; and 6, determining planar distribution of the nearshore subaqueous fan sandstone rock sedimentary facies belt according to the combination of the seismic section and a well-tie sedimentary facies contrast section. The method for identifying the rift lake basin steep slope zone nearshore subaqueous fan sedimentary facies belt identifies a sandstone rock sedimentary facies belt through combining well drilling and seismic facies characteristics, is simpler and more convenient than a test method, and is more accurate and reliable than an empirical method.

The invention provides a method used for characterizing a small and medium sized extension rift basin growth reverse fault, which belongs to the technical field of geological prospecting. The method comprises the steps that the data of an area to be identified are collected and processed; sequence division is carried out under the guidance of a sequence stratigraphy theory, and an isochronal sequence stratigraphic framework of the area to be identified is established; under the constraint of the isochronal sequence stratigraphic framework of the area to be identified, construction-stratigraphic linkage interpretation is carried out, and positive and reverse faults are identified and classified; stratigraphic-sedimentary linkage interpretation is carried out on classified positive and reverse faults; a pseudo fault which is mistakenly identified is rejected, and a fault framework of the area to be identified is established; construction-sedimentary linkage interpretation is carried out on positive and reverse faults in the fault framework of the area to be identified; a growth fault construction framework is established, and a growth reverse fault in the framework is determined; a tectonic geologic model of the growth reverse fault and the derivative tectonic geologic model are built; and the cause of the growth reverse fault in each tectonic geologic model is analyzed to guide oil and gas exploration of the area to be identified.

The invention relates to a visualization device and method for detecting a sand carrying performance of CO2 fracturing fluid under a high pressure dynamic filtration condition, and belongs to the technical field of oil and gas field fracturing transformation simulation and fracturing fluid sand carrying performance device evaluation. The device comprises a sand carrying measuring device and an image collecting device, and is characterized by further comprising a filtration measuring device, the visualization device is communicated through an associated line, and the fracturing fluid flows through the associated line; the sand carrying measuring device comprises a visualization inner cavity so as to be used for simulating that a sand carrying flow process of the fracturing liquid in a fracturing rift; the filtration measuring device is communicated with the visualization inner cavity so as to be used for simulating influences of different permeability stratum to a filtration process inthe fracturing rift; the image collecting device is used for collecting flow forms of the fracturing liquid carrying sand and analyzing data. In an actual fracturing process, the fracturing liquid flows into the stratum rock matrix along a fracturing liquid flow direction and through a rift wall surface, and with the influences of different permeability of the stratum rock matrix, the device can simulate the changes of filtration performance of the fracturing liquid.

The invention discloses a nondestructive detection method of mechanical properties of standing timbers. The method comprises the following steps of: S1, establishing a prediction model Ecell of a longitudinal elastic modulus of a wood cell wall; S2, establishing a prediction model of a wood macroscopic longitudinal elastic tensile modulus E taking the air-dry density rho and a microfibril angle MFA of a mechanical sample as independent variables: E=a*( rho / rhocell) Ecell+b; S3, measuring the elastic tensile modulus of wood rift grains, the air-dry density and the MFA on the same one mechanical sample, putting the measured data into E and carrying out linear regression to obtain coefficients a and b, and completing the establishment of the wood macroscopic longitudinal elastic tensile modulus E; and S4, drilling the standing timbers to take a growth cone, detecting the air-dry density and the MFA of the growth cone from a pith to bark multipoint, and putting into the model E after the step S3 so as to obtain the predicted value and regularities of distribution of the longitudinal elastic modulus of the standing timbers. According to the nondestructive detection method, the nondestructive and accurate measurement to the mechanical properties of the standing timbers is realized.

The invention provides a formaldehyde-free flame-retardant and waterproof glued wood laminated board and a production method thereof. No free formaldehyde is released. Poplar boards are used as the uppermost layer and the lowermost layer of the laminated board. The middle layer of the laminated board is formed by overlapping a plurality of eucalyptus boards up and down. The wood grains of every two adjacent eucalyptus boards up and down in the middle layer are arranged vertically and horizontally. The wood grains of the eucalyptus board at the bottom of the middle layer and the wood grains of the poplar board of the lowermost layer are arranged vertically and horizontally. The wood grains of the eucalyptus board at the top of the middle layer and the wood grains of the poplar board of the uppermost layer are arranged vertically and horizontally. The upper board face and the lower board face of each eucalyptus board are provided with glue grooves arranged in the direction of the grains. The production method of the laminated board comprises the following steps that small eucalyptus boards are placed on a rolling mill along the grains for rolling pressing treatment so that the glue grooves can be formed; the small eucalyptus boards are spliced into the eucalyptus boards of the two types of longitudinal rift grains and transverse rift grains; polyvinyl alcohol glue is prepared; hot-melt resin mortar is prepared; the board faces are glued; aging is conducted; assembling is conducted; hot pressing is conducted; board sawing is conducted; and edge banding is conducted.

The invention covers the mining industry. Detection method of the occurrence zone of the mantle substance diapir finger consisting in that that geological observation are carried out in riftzones banked up by diapirs of the abnormal mantle and places of location of the mantle substance finger in the earth's crust are determined. Based on the presence of influence traces of silanes streams upon the rock and / or presence of separate ridges having the length up to 200 km by the width of up to 20 km and / or based on the blast traces of silanes and / or presence of scoria cones, differing by that that the correspondence of 3He / 4He from gases sampled from sources of 10−5 order is additionally determined for determination of silicides at the small depth as physical parameters for the location of the mantle substance diapir finger in the earth's crust. The presence of high semiconductor conductivity, locality and activity of magnetic anomalies and anomalies of gravity field is additionally established. The occurrence depth of silicides is determined by magnetotelluric sounding and / or seismic reflection and refraction methods.

The invention discloses a quantizer code rate distortion control method based on an advanced audio encoder. The method includes the following steps: A, obtaining the pre-estimated number of the distributable bits of the sub-band through the code stream to be encoded, and calculating the average number of the sampling distributable bits according to the pre-estimated number of the distributable bits of the sub-band; B, determining the selecting coefficient of the rift belt quantization scale based on prearranged principle through the average number of the sampling distributable bits, and obtaining the rift belt quantization scale through calculation through the improved discrete cosine transform spectrum of the code stream to be encoded and the selecting coefficient of the rift belt quantization scale; C, conducting code rate distortion control with the rift belt quantization scale as the parameter and obtaining the final reference bit consumption. The quantizer code rate distortion control method effectively reduces the complexity of code rate distortion control and reduces the calculation quantity during quantizing coding, thus improving encoding quality and efficiency of the encoder.

A tenon and mortise combined structure of a wood product comprises a tenon and a mortise, wherein the inner end surface and the outer end surface of the mortise of the wood product are square rift grain surfaces; a rift grain edge of the square rift grain surface on the inner end surface of the mortise is larger than a rift grain edge of the square rift grain surface on the outer end surface of the mortise; the lengths of cross grain edges of the square rift grain surfaces on the inner end surface and the outer end surface of the mortise are equal; an opening is formed in the tenon installed in the mortise from inside to outside; a buffer hole in parallel connection with the opening is formed at the outer end of the tenon; an expansion sheet is installed inside the opening; the expansion sheet consists of two oppositely closed trapezoidal sheets; an inner circular hole is formed on each trapezoidal sheet of the expansion sheet; the two inner circular holes are opposite to each other; a pressure spring is installed inside the inner circular holes; the expansion sheet is an integral metal elastic sheet; and a junction surface of the expansion sheet and the opening of the tenon is toothed. The tenon and mortise combined structure of the wood product can avoid damage to conventional furniture due to loose of the tenon and the mortise under the condition of wetness and dryness change, so that the service life of the furniture is prolonged.

The invention discloses a method for diagnosing rolling mill transmission mechanism securing pin rupture on line, the method is directly used on rolling mill programmable controller PLC, that is the rolling mill control system, the set sampling period is 50 milliseconds, which does not affect normal work of rolling mill control system. The main transmission inverter of the rolling mill transmits the actual speed and the actual output torquemoment of the main drive motor to the rolling mill programmable controller PLC through communication net wire, the PLC accomplishes sampling, calculation and stores data according to the method, and then whether the securing pin ruptures is judged. Once the securing pin ruptures, the rolling mill control system will blockade enable signals of main transmission inverters of every rolling mill in the tandem mills at once, the tandem mills stops freely, in order to avoid the phenomenon that machine frame locking apparatus and machine frame base anchor are broken by serious pushing and pulling between machine racks after the securing pin ruptures in the tandem mills, and ensure the stable operations of rolling mill and other equipments.

The invention discloses a method for diagnosing rolling mill transmission mechanism securing pin rupture on line, the method is directly used on rolling mill programmable controller PLC, that is the rolling mill control system, the set sampling period is 50 milliseconds, which does not affect normal work of rolling mill control system. The main transmission inverter of the rolling mill transmits the actual speed and the actual output torquemoment of the main drive motor to the rolling mill programmable controller PLC through communication net wire, the PLC accomplishes sampling, calculation and stores data according to the method, and then whether the securing pin ruptures is judged. Once the securing pin ruptures, the rolling mill control system will blockade enable signals of main transmission inverters of every rolling mill in the tandem mills at once, the tandem mills stops freely, in order to avoid the phenomenon that machine frame locking apparatus and machine frame base anchor are broken by serious pushing and pulling between machine racks after the securing pin ruptures in the tandem mills, and ensure the stable operations of rolling mill and other equipments.

The invention relates to a method for dividing a nearshore subaqueous fan glutenite sedimentary unit body, aiming at accurately dividing the nearshore subaquatic fan sandy conglomerate sedimentary unit body in a steep slope zone of a rifted lake basin. On the basis of the study of the sink sedimentary simulation experiment, etc., establish the identification and division standard of the glutenite sedimentary unit body of the nearshore subaqueous fan. Based on the division of seismic data and drilling data of the nearshore subaqueous fan sedimentary unit, and with the time-depth relationship of a single well as the constraint, the inter-well analysis of the nearshore subaqueous fan sedimentary unit is carried out. In contrast, the accurate identification and division of the nearshore subaqueous fan glutenite sedimentary unit in the steep slope zone of the faulted lake basin can accurately and effectively divide the nearshore subaquatic fan glutenite sedimentary unit and determine its spatial distribution range.

The invention discloses a metal surface silane treating agent containing ammonium metavanadate. The metal surface silane treating agent is characterized by being a mixture solution prepared from the following ingredients in parts by weight (gram) in each liter of the mixture: 22-32 parts of 3-(isobutene acyl oxygen) propyl trimethoxy silane, 27-40 parts of N-phenyl-3-amino propyl trimethoxy silane, 100-190 parts of aqueous nano-zinc oxide, 3-5 parts of ethylene diamine tetramethylene risedremate sodium, 3-4 parts of allyl alcohol, 3-4 parts of propylene glycol, 2-3 parts of zirconium fluoride, 2-3 parts of monohydrate ammonia, 1-2 parts of diethanol amine, 1-2 parts of dimethyl sulfoxide, 0.8-1 parts of ammonium metavanadate, 0.7-0.9 parts of bibutyl cellosolve and the balance of water. The aqueous nano-zinc oxide prepared by using the process provided by the invention has high dispersion stability and efficient adhesiveness, and is uniformly distributed on the surface of a metal, so that the metal has high compactness and anti-ion permeability; and due to the added assistant such as the ethylene diamine tetramethylene risedremate sodium and the like, the compactness of a silane absorbing film is increased, the filming quality is improved, the film layer has the characteristics of being strong in adhesion capability, free of cavity and rift, compact and uniform and small in polarization current density, and the production process is environmental-friendly and pollution-free.

This invention discloses a non-periodic arrayed flat rift radiation arrayed face including a first, a second, a third and a fourth quadrant arrayed faces, in which, the first and the third are symmetrical with the arrayed face center as the symmetric point, the second and the fourth quadrant arrayed faces are symmetric with the center as the symmetric point, each of the four quadrants includes at least two sub-arrays, each is composed of array cells, one radiation slot is set on each cell, the sub-array is arranged un-periodically and the cells are distributed randomly, the phase center of each sub-array projects on the orientation face and the overhead-bow face in the distance larger than half-wave length and smaller than 1.5 times wave length, phases of all radiation slots are distributed in-phase.

The invention discloses a tapping screw reinforcement structure and method for a defected compression member of a historic building timber structure roof truss. The tapping screw reinforcement structure comprises old wood, newly-filled supplementation wood and tapping screws. Defect digging-out structures are arranged on the old wood and are in an inverted trapezoid shape, the newly-filled supplementation wood is arranged inside the defect digging-out structures and matched with the defect digging-out structures in shape, and the newly-filled supplementation wood and the old wood are reinforced through the tapping screws. The defect digging-out structures are arranged on one side of the old wood in a digging-out mode or symmetrically arranged on the two sides of the old wood in a digging-out mode. The strength grade of the newly-filled supplementation wood is higher than or equal to that of the old wood, and the rift grain direction of the newly-filled supplementation wood is uniform with that of the old wood. The tapping screw reinforcement structure is suitable for reinforcing the compression member with symmetrical defects or asymmetrical defects, remarkable in construction effect, convenient to apply, economical, practical and simple in technology.

The invention covers the mining industry. Detection method of the occurrence zone of the mantle substance diapir finger consisting in that that geological observation are carried out in riftzones banked up by diapirs of the abnormal mantle and places of location of the mantle substance finger in the earth's crust are determined. Based on the presence of influence traces of silanes streams upon the rock and / or presence of separate ridges having the length up to 200 km by the width of up to 20 km and / or based on the blast traces of silanes and / or presence of scoria cones, differing by that that the correspondence of 3He / 4He from gases sampled from sources of 10−5 order is additionally determined for determination of silicides at the small depth as physical parameters for the location of the mantle substance diapir finger in the earth's crust. The presence of high semiconductor conductivity, locality and activity of magnetic anomalies and anomalies of gravity field is additionally established. The occurrence depth of silicides is determined by magnetotelluric sounding and / or seismic reflection and refraction methods.

The invention discloses a cracking-preventing solid door production process and relates to the field of building materials. The cracking-preventing solid door production process comprises stile manufacturing, door paneling manufacturing, door leaf assembling and door leaf sanding, painting and packaging, wherein a three-layer rift grain overlaying glued structure is adopted to the stile material, a three-layer square crossing overlaying glued structure is adopted to door panelings, and meanwhile the construction process is improved. The process solves the problem that a solid door is prone to cracking and deformation.

The invention provides an oriented strand board which comprises a face board, cross-band veneer and a bottom board. The oriented strand board is characterized in that the mass ratio of wood shavings and tackiness agent in the cross-band veneer is 100: (10-25). The mass ratio of wood shavings and tackiness agent in the oriented strand is 100: (10-25), and therefore bonding strength can be guaranteed, mechanical property of a product can be improved, and a phenomenon of bubbling in a producing process is avoided. An experimental result shows that the rift grain static bending intensity of the oriented strand is greater than or equal to 50 MPa, and the cross grain static bending intensity of the oriented strand is greater than or equal to 30 MPa. The rift grain elasticity modulus of the oriented strand is greater than or equal to 5000 MPa, and the cross grain elasticity modulus of the oriented strand is greater than or equal to 3000 MPa. The internal bonding strength of the oriented strand is greater than or equal to 0.45 MPa, and the oriented strand can bear the dynamic load greater than or equal to 2.0 T.

The invention discloses a solid wood sense melamine board. According to the melamine board, a top board, a bottom board, a left edge sealing board, a right edge sealing board, a front end edge sealing board and a rear end edge sealing board are mainly and mutually spliced to form a rectangular board, wherein both the top board and the bottom board are provided with solid wood surface grain layers; the left edge sealing board and the right edge sealing board are provided with solid wood rift grain layers; the front end edge sealing board and the rear end edge sealing board are provided with solid end grain layers; and the grains of the solid wood surface grain layers, the solid wood rift grain layers and the solid end grain layers correspond mutually. The grains of four surfaces of the melamine board are coordinated and consistent and confirm to a grain structure of a real solid wood board so as to replace the real solid wood board, so that the production cost is not only reduced, but also a large quantity of trees are avoided being cut down so as to protect the environment.

The invention provides a formaldehyde-free flame-retardant and waterproof glued wood laminated board and a production method thereof. No free formaldehyde is released. Poplar boards are used as the uppermost layer and the lowermost layer of the laminated board. The middle layer of the laminated board is formed by overlapping a plurality of eucalyptus boards up and down. The wood grains of every two adjacent eucalyptus boards up and down in the middle layer are arranged vertically and horizontally. The wood grains of the eucalyptus board at the bottom of the middle layer and the wood grains of the poplar board of the lowermost layer are arranged vertically and horizontally. The wood grains of the eucalyptus board at the top of the middle layer and the wood grains of the poplar board of the uppermost layer are arranged vertically and horizontally. The upper board face and the lower board face of each eucalyptus board are provided with glue grooves arranged in the direction of the grains. The production method of the laminated board comprises the following steps that small eucalyptus boards are placed on a rolling mill along the grains for rolling pressing treatment so that the glue grooves can be formed; the small eucalyptus boards are spliced into the eucalyptus boards of the two types of longitudinal rift grains and transverse rift grains; polyvinyl alcohol glue is prepared; hot-melt resin mortar is prepared; the board faces are glued; aging is conducted; assembling is conducted; hot pressing is conducted; board sawing is conducted; and edge banding is conducted.

The invention provides a bamboo skin curtain-concrete prefabricated component which is economical, environment-friendly and convenient to construct. According to the bamboo skin curtain-concrete prefabricated component, the basic mechanical mechanism that tree roots grow and spall a road surface is considered, it is considered that bamboo materials have the good rift grain tensile performance and are environment-friendly, economical and reproducible, and the pull crack effect of growing of the tree roots on the road surface is resisted through the rift grain tensile performance of the bamboo materials. The road surface is prevented from being spalled by the tree roots by embedding the prefabricated component. The bamboo skin curtain-concrete prefabricated component is arranged between the concrete road surface and pure soil and comprises a concrete prefabricated component body and a bamboo skin curtain layer. The concrete prefabricated component body is in a basket shape, and the bottom face is arranged upwards, is in contact with the concrete road surface and is used for bearing loads of the concrete road surface on the bottom face; and the bamboo skin curtain layer is matched with the top face of the concrete prefabricated component body, is fixedly connected with the top face of the concrete prefabricated component body, is in contact with the pure soil and is used for buffering extrusion, caused by growing of the tree roots, on the road surface.

A tenon and mortise combined structure of a wood product comprises a tenon and a mortise, wherein the inner end surface and the outer end surface of the mortise of the wood product are square rift grain surfaces; a rift grain edge of the square rift grain surface on the inner end surface of the mortise is larger than a rift grain edge of the square rift grain surface on the outer end surface of the mortise; the lengths of cross grain edges of the square rift grain surfaces on the inner end surface and the outer end surface of the mortise are equal; an opening is formed in the tenon installed in the mortise from inside to outside; a buffer hole in parallel connection with the opening is formed at the outer end of the tenon; an expansion sheet is installed inside the opening; the expansion sheet consists of two oppositely closed trapezoidal sheets; an inner circular hole is formed on each trapezoidal sheet of the expansion sheet; the two inner circular holes are opposite to each other; a pressure spring is installed inside the inner circular holes; the expansion sheet is an integral metal elastic sheet; and a junction surface of the expansion sheet and the opening of the tenon is toothed. The tenon and mortise combined structure of the wood product can avoid damage to conventional furniture due to loose of the tenon and the mortise under the condition of wetness and dryness change, so that the service life of the furniture is prolonged.

The invention discloses a preparation method of a bamboo club filled with polyurethane. Curly flexible bamboo skin or bamboo ties serve as basic processing units, an epoxy resin mixture sizing agent is smeared on the basic processing units, and the density of the club is controlled by adjusting the ratio of the bamboo units to the epoxy resin mixture sizing agent; then a rigid polyurethane foam composition is used as filler, the filler is injected from the end of a die pressing die, the filler enters the gaps and the holes of the bamboo units in the rift grain directions of the bamboo units, and under the effect of medium and high temperature, after the polyurethane composition reacts for a period of time, the bamboo club filled with polyurethane is obtained. The yield of products can be effectively increased, the production efficiency is improved, the resource utilization rate is increased, and meanwhile bamboo clubs with different densities and properties are manufactured by adjusting the polyurethane formula and the assembly structure of the bamboo units.

The invention discloses a glued wooden pole fire-resistant design method in consideration of wood strength deterioration in a medium-low temperature area, and belongs to the field of fire-resistant design. The method comprises the following steps: analyzing finite element heat transfer on a cross section of the glued wooden pole to acquire the temperature field distribution on the cross section of the glued wooden pole under a standard fire hazard warming condition ruled by the international standard ISO834; establishing a wood high-temperature rift grain relative compressive strength multi-step simplified model according to the lignin thermal property of the wood, and determining an equivalent section of the cross section of the glued wooden pole; determining the bearing force of the glued wooden pole, and analyzing and designing the fire resistance of the glued wooden pole. By establishing the wood high-temperature rift grain relative compressive strength multi-step simplified model, acquiring the temperature field distribution on the cross section of the glued wooden pole, and determining the equivalent section of the cross section of the glued wooden pole in the firing process, the glued wooden pole fire-resistant design method in consideration of wood strength deterioration in the medium-low temperature area is proposed; and meanwhile, the fire endurance of the glued wooden pole is predicted.

The invention discloses a method for predicting oil and gas reserve growth of a complex rift basin, belonging to the field of oil and gas exploration. The method comprises the following steps of obtaining the exploration parameters within the first preset year range of the target complex fault basin as the first sample, wherein the exploration parameters include actual drilling parameters and actual oil and gas reserve increment; according to the first sample, establishing the actual oil and gas reserve increment and the first and second relationship between the actual drilling parameters andthe year; in accordance with a first relationship and the second relation, establishing the prediction model of oil and gas reserve growth in the target complex rift basin, obtaining the simulated oiland gas reserve increment of the target complex rift basin over the years and comparing with the actual oil and gas reserve increment of the same year respectively; when the relative error of the twois within the preset range, using the oil and gas reserve growth prediction model to predict the future oil and gas reserve growth of the target complex rift basin. The method can accurately predictthe increase of the oil and gas reserves in the target complex faulted basin.

Embodiments of the invention provide a velocity field construction method and device. The method comprises the following steps of: calculating velocity values at junctions of multiple well points andmultiple geological interfaces; carrying out interpolation calculation on the velocity value at the junction of each geological interface so as to obtain a first velocity value of the geological interface; obtaining a second velocity value of each geological interface on the basis of a reference velocity field obtained via pre-stack depth migration; constructing an error velocity field on the basis of the first velocity values and the second velocity values; and correcting a reference velocity field by using the error velocity field so as to obtain a target velocity field for time-depth conversion. By utilizing the method, data related to depth domains with correct well points and reasonable geological laws can be obtained in complicated rift basins.