33 results about "Wall slip" patented technology

A ring shear apparatus for measuring a shear strength of soil samples. The ring shear apparatus considering a wall-slip effect including: an upper ring for forming a first accommodation portion having a ring shape in which soil samples are accommodated; a lower ring for forming a second accommodation portion that corresponds to the first accommodation portion of the upper ring and has a ring shape in which soil samples are accommodated, closely attached to a lower portion of the upper ring and rotatably installed relative to the upper ring; a rotating unit for rotating the lower ring relative to the upper ring; and a shear strength measuring sensor combined with the upper ring and for measuring a shear strength of the soil samples, wherein a plurality of protrusions that protrudes from the lower ring is formed on an inner circumferential surface of the lower ring along a circumferential direction of the lower ring in order to prevent the soil samples from being slid when the lower ring is rotated.

The invention discloses a construction method for integration of a concrete silo internal lining steel rail and a silo wall slip form. The method comprises the following steps: when the height of the internal lining steel rail is reached to the limestone silo construction according to design requirement, a silo wall inner formwork of the slip form is removed, and a ring steel plate is arranged at the design height of the silo inner side; effective number of steel rails are vertically arranged on the ring steel plate, and connected with one another through reinforcement steel bars, and the steel rails are welded with anchoring reinforcement steel bars connected with the silo wall reinforcement steel bars; after the position, distance and verticality of the steel rails are corrected, the joints between the reinforcement steel bars and the steel rails are welded; and the anchoring reinforcement steel bars and the silo wall reinforcement steel bars are tightly bound and arranged on the silo wall inner formwork again, and the concrete is continuously cast between the silo and the steel rails until the design height of the silo is reached, thereby improving the wearing resistance of the silo, prolonging the service life of the limestone silo by 15 to 20 years, reducing manpower consumption by 110 working days, reducing material consumption by 30,000 yuan, saving the time of welding, arrangement and secondary casting of the steel rails and shortening construction period by 30 days.

The invention discloses an exposed type modified asphalt waterproof coiled material and a preparation method thereof. The exposed type modified asphalt waterproof coiled material is composed of an isolating layer, a lower surface modified asphalt layer, a reinforcing layer, an upper surface high-viscosity modified asphalt layer and a ceramic particle layer which are sequentially arranged, whereinthe lower surface modified asphalt layer comprises an overlap edge outer part and overlap edge parts on both sides of the overlap edge outer part. The exposed type modified asphalt waterproof coiled material can integrate the functions of waterproofness, energy conservation, attractive appearance, ageing resistance, vertical wall slipping resistance in summer and the like.

The invention discloses a heating grease supply device and a method. The heating grease supply device is provided with a grease storage pressurizing module and a heating grease supply module, wherein the grease storage pressurizing module is used for storing not heated lubricating grease and applying certain pressure to the lubricating grease; and the heating grease supply module is provided with a grease passing gap allowing the lubricating grease in the grease storage pressurizing module to be heated, hot fluid channels uniformly distributed at the outer edge of the grease passing gap and a grease outlet for collecting the heated lubricating grease, and the grease outlet communicates with the grease passing gap. According to the heating grease supply device, a wall slip effect of the smooth wall surface of the grease passing gap and the thermorheological characteristic of the lubricating grease during heating both have a promotion effect on the flowing property of the lubricating grease; meanwhile, the higher the temperature is, the more obvious the wall slip effect is; and through the coupled promotion effect, the gap flowing performance of the lubricating grease can be improved.

The invention discloses a tube structure roof panel construction method. The method comprises the steps of 1, building a tube structure with a slip-form construction method, and arranging an embedded ring at the top end of a tube wall; 2, splitting a slip form inner frame and a slip form outer frame and lowering the slip form inner frame to be below the elevation of a roof panel after tube wall slip-form construction; 4, fixedly connecting the slip form inner frame with the embedded ring with a steel wire rope, and then making the slip form inner frame fixed relative to the inner wall of a tube body; 5, laying planks and steel channels on the slip form inner frame, and conducting support frame erection and roof construction. The invention further discloses a construction system. According to the roof panel construction hanger formwork system, the slip form inner frame is transformed into a hanger formwork to serve as a support platform of a roof panel support frame, so that roof panel construction is conducted; a pull-up reinforcing mode is adopted for the hanger formwork, the hanger formwork and the embedded ring at the top end of the tube wall are connected through the steel wire rope on the upper portion, the hanger formwork abuts against the tube wall through a U-shaped support, swing of a frame body is effectively prevented, the using range and using time of the hanger formwork system are widened and prolonged, construction difficulty is reduced, construction period is shortened, danger coefficient is reduced, and construction cost is saved.

The invention relates to a method for evaluating the fault sealing property in the technical field of oil and gas field exploration. The method includes the steps of (1) selecting a breakpoint in needof sealing property evaluation on a fault that is dislocated in a reservoir stratum, determining each sand-mud stratum with relative wall slip through the breakpoint, and determining the thickness [delta]Zi of each sand-mud stratum; (2) sequentially acquiring the shale content Vshi of each sand-mud stratum slipping through the breakpoint; (3) sequentially solving for a weighting coefficient Wi slipping through each sand-mud stratum; (4) calculating a weighted mudstone fault mud ratio WSGR value of the breakpoint; and (5) evaluating the sealing property of the reservoir at the breakpoint location by using the weighted mudstone fault mud ratio WSGR value, when the WSGR value is greater than or equal to 0.6, indicating that the fault sealing property of the breakpoint location is good and the oil and gas can be effectively sealed, determining the reservoir stratum as an oil stratum or an oil-bearing water stratum with a large probability, and determining the reservoir stratum as a waterstratum with a large probability otherwise. The method fully considers the docking relationship between the two walls of the fault, adds the distance coefficient to reflect the contribution degree ofeach relative wall point on the calculation point, and improves the accuracy and precision of the judgment of the fault sealing property.

The invention relates to a construction method of a composite single-side formwork system for an outdoor wall of a basement, comprising the steps of: 1) construction preparation; 2) layout of a transverse support waist beam; 3) construction of a prefabricated tire formwork support; 4) formwork support at the bottom of an outdoor wall of a basement; 5) Concrete pouring construction of the basement exterior wall; 6) Sliding formwork construction of the basement exterior wall. The beneficial effects of the present invention are: the pile side hoop plate and the support pile are connected through the connecting anchor bolt and the hoop plate anchor bar, and the transverse brace waist beam is connected with the pile side hoop plate through the waist beam hoop, which reduces the difficulty of component connection. The integrity of the structure is improved; at the same time, the present invention arranges the first connecting hoop and the second connecting hoop at the longitudinal junction of the cross support waist beam, and the outer wall of the first connecting hoop and the second connecting hoop Auxiliary tie bars are set between the tie support plates, which can effectively improve the connection strength of the cross brace waist beam and reduce the difficulty of connection positioning.

The invention discloses a device ensuring rear side movement of double movable walls of a coal chute, which is used in the process of coking by adopting tamping. The device comprises a baseplate and a chain, wherein the baseplate is positioned on the chain and forms a coal box with a front baffle, a left side wall, a right side wall and a rear baffle which are positioned on the baseplate; tamping hammers are arranged above the coal box; and a coking chamber of a coke oven is arranged in front of the coal box. The device is characterized in that the left side wall and the right side wall are respectively provided with cylinders; the cylinders are hinged with the middle parts of levers by cylinder rods; one end of the levers is hinged with fixed supports and the other end thereof is hinged with connecting hinge point bases; the hinge points are positioned on position stops; the position stops are respectively connected with the left side wall and the right side wall fixedly; and the movement ends of the levers are freely connected with the position stops by circular arcs and ensure the left side wall and the right side wall slip toward the rear side when being separated with coal cakes.

The invention discloses a method for preventing roadway floor drum and wall slippage in gob-side retaining roadway. Construct a protective unit every 2 meters until the entire gob-side entry is completed. The present invention adopts technical means such as adopting the wave-shaped anti-arch steel pipe of the bottom plate, coordinating the grouting steel pipe arranged obliquely, and reinforcing the steel pipe at the foot of the roadway, and fixing the three together, so as to change the stress state of the surrounding rock of the roadway and avoid The floor drum of the roadway is caused by the pressure film effect on the floor of the two sides of the roadway; and the vertical pressure on the two sides of the roadway is converted into a downward extrusion force on the roadway floor, which further restricts the bottom drum of the roadway; at the same time, by improving the bottom of the roadway The force of the surrounding rock at the foot should be considered to avoid wall slippage caused by damage to the weak parts of the roadway. The invention is safe and reliable, has strong adaptability and is suitable for popularization and application of gob-side entry retention.

The invention discloses a method for establishing a microscopic wall slip model for injection molding. Based on the macroscopic viscosity model, the length of the molecular segment and the characteristic size of the micro-parts, the following steps are sequentially performed: 1) introducing a microscopic correction factor to the macroscopic viscosity model. Correction; 2) Set the ratio of the molecular segment length le reflecting the polymer flow characteristics to the micro-part characteristic size d as the minimum macroscopic size of the microstructure as the microcosmic influence factor; 3) establish the relationship between the microcosmic correction factor and the microcosmic influence factor , and use the least squares method to fit its parameter values; 4) Introduce the relationship between the microscopic correction factor and the microscopic influence factor into the macroscopic wall slip model relational expression, and obtain the microscopic Wall slip model relations. The establishment method of the invention considers the microscopic viscosity change and the characteristic size factors of the micro parts which affect the slippage of the wall surface, and significantly improves the accuracy of the prediction of the flow characteristics of the polymer melt.

The invention discloses a slip form system of a large-diameter cylindrical structure and a construction method thereof and solves the problem that construction facilities in cylinder wall slip-form systems and roof slip-form support systems of the prior construction part are disconnected. The slip form system comprises support rods (2) and portal lift racks (7) embedded in a cast cylinder wall (1), inner and outer slip forms are disposed on the inner and outer sides of the cast cylinder wall, an inner slip form ring (6) and an outer slip form ring (5) are fixedly connected to the lower ends of the portal lift racks, respectively, radial lightweight steel trusses (12) are disposed on the outer periphery of a structural central cylinder (11) at equal radian intervals, the outer ends of the radial lightweight steel trusses (12) are fixedly connected to a circular steel beam (10) through bolts, the circular steel beam (10) is fixedly welded on the inner slip form ring (6), and a support (13) is disposed between every two adjacent radial lightweight steel trusses (12). The slip form system and the construction method thereof have the advantages that the structure is simple and input of manpower and tools is low.

An embodiment of the present invention provides a method and system for obtaining a wall slip curve based on a parallel plate rheological test. The method includes: using a parallel plate structure for a rotational rheological test, and setting the rotor radius to a constant value during the test, The rotational speed of the rotor, the material of the shear plane and the distance between the shear planes are set as variables; when the rotational speed of the rotor is detected, the flow field with the same topological structure of the flow field is differentially compressed to obtain a simple shear A flow field model; according to the simple shear flow field model, a wall slip curve is obtained. The embodiment of the present invention uses a rotational rheometer with a parallel plate structure to test, and the required data can be directly provided by the rheometer. Compared with the traditional pipeline pressure flow mode, it is simpler and requires less sample volume. Instrument cleaning and The maintenance is simpler; on the premise of not substituting the fluid and slip model, the original data is directly differentiated, and the research problem is simplified to a simple shear flow, while retaining the accurate description of the original flow field.

The invention discloses a construction method for integration of a concrete silo internal lining steel rail and a silo wall slip form. The method comprises the following steps: when the height of the internal lining steel rail is reached to the limestone silo construction according to design requirement, a silo wall inner formwork of the slip form is removed, and a ring steel plate is arranged atthe design height of the silo inner side; effective number of steel rails are vertically arranged on the ring steel plate, and connected with one another through reinforcement steel bars, and the steel rails are welded with anchoring reinforcement steel bars connected with the silo wall reinforcement steel bars; after the position, distance and verticality of the steel rails are corrected, the joints between the reinforcement steel bars and the steel rails are welded; and the anchoring reinforcement steel bars and the silo wall reinforcement steel bars are tightly bound and arranged on the silo wall inner formwork again, and the concrete is continuously cast between the silo and the steel rails until the design height of the silo is reached, thereby improving the wearing resistance of thesilo, prolonging the service life of the limestone silo by 15 to 20 years, reducing manpower consumption by 110 working days, reducing material consumption by 30,000 yuan, saving the time of welding,arrangement and secondary casting of the steel rails and shortening construction period by 30 days.

The invention discloses a double-cylinder-wall concrete silo slip form construction operation platform and a construction method. The double-cylinder-wall concrete silo slip form construction operation platform comprises an outer cylinder wall lifting system and an inner cylinder wall lifting system which are synchronously lifted, wherein the outer cylinder wall lifting system and the inner cylinder wall lifting system each comprise an inner side platform and an outer side platform, each of the inner side platforms and the outer side platforms comprises an upper layer, a middle layer and a lower layer, and the three layers of platform bodies on the outer side of the inner cylinder wall and the three layers of platform bodies of the inner side of the outer cylinder wall are correspondinglyconnected into a whole; and the upper-layer platform bodies are used for temporarily stacking slip form construction materials, the middle-layer platform bodies are used for steel bar binding, concrete transportation and pouring and tamping space, and the lower-layer platform bodies are used as a platform for receiving light, maintaining and checking after concrete is out of the forms. The three layers of platform bodies are reasonable in work division, and the requirement for slip form simultaneous lifting of a double-cylinder-wall silo is effectively met. By means of the double-cylinder-wallconcrete silo slip form construction operation platform and the construction method, the inner cylinder wall and the outer cylinder wall are connected into the whole on the basis of an original single-cylinder-wall slip form, so that the overall stability of a slip form system is improved, the slip form is lifted through the double cylinder walls at the same time, and the construction period is greatly shortened.

The invention relates to a curtain wall air tightness detection device, which includes a pressure box, a pressure supply component and a measurement component; the pressure box includes an outer box that fits on the surface of the curtain wall and an inner box that is arranged in the outer box and fits on the surface of the curtain wall body, the outer wall of the inner box perpendicular to the surface of the curtain wall and the inner wall of the outer box perpendicular to the surface of the curtain wall are slidingly matched and sealed; the surface of the inner box and the curtain wall is fixed with a first sealing ring around the opening of the inner box , the surface of the outer box and the curtain wall is fixed with a second sealing ring around the opening of the outer box; the outer box is provided with a mounting piece fixed to the beam; the pressure supply component includes an air pump and an air pipe, and the outer box is parallel Between the inner side wall of the curtain wall and the outer side wall of the inner box body parallel to the curtain wall, there are control valves communicating with the outer box body and the inner box body respectively, and the gas pump communicates with the control valve. The invention has the effect of good airtightness, and improves the detection accuracy of the airtightness of the curtain wall.

The invention discloses a visual polymer micro-extrusion mold and belongs to the technical field of polymer micro-extrusion molds. The visual polymer micro-extrusion mold is characterized in that the visual mold consists of a connecting pipe, a heating ring, a handpiece body, an adjusting bolt, a positioning pin, a baffle, a fastening bolt, a visual neck ring mold, a pressure / temperature sensor, a core rod, a gasket, a temperature sensor, a ventilating bolt, a support plate, a spure spreader and a flange. The spure spreader, the core rod and the neck ring mold with different structural parameters are respectively exchanged according to the need; coaxiality and clearance between the core rod and the visual neck ring mold are adjusted by the method of fixing the visual neck ring mold and adjusting the core rod; the visual neck ring mold is used for observing the flow state in the micro-extrusion mold of polymer melt; the pressure / temperature sensor is used for measuring pressure and temperature of straight section of the polymer melt; and the heating ring and the temperature sensor are used for controlling temperature of the micro-extrusion mold. The visual polymer micro-extrusion mold obtains flow distribution, flow characteristics and wall slip velocity of the polymer melt in the flow channel by the visual neck ring mold.

The invention discloses a cast-in-situ lightweight aggregate concrete filler wall slip-form construction template system and a construction method. The template system comprises an outer mold and an inner mold, wherein the outer mold comprises an outer mold frame and a first mirror multilayer board connected to the outer mold frame; reinforced angle iron is welded at the left side and the right side of the outer mold frame; inverse L-shaped round steel is arranged beside the reinforced angle iron; a first hook ring is welded at the top of the outer mold frame; the inner mold comprises a sealed inner mold body; a vibrator is arranged inside the inner mold body; two inner mold support handles are symmetrically arranged at two sides of the top of the inner mold body. The method comprises the following steps: 1, fabricating the outer mold and the inner mold; 2, mounting the outer mold; 3, installing the inner mold; 4, reinforcing and correcting the outer mold; 5, casting and vibrating lightweight aggregate concrete; 6, lifting the template system; 7, repeating the steps 5 to 6 for a plurality of times and casting until the distance from the template system to an original structure body is 150mm-250mm; and 8, stripping the mold. A constructed wall body disclosed by the invention is good in integrality, stable and reliable in strength, and free of construction waste, and the labor cost is greatly reduced.

The invention discloses a method for determining the depth and slip risk of a coal wall slip sheet. The method includes assuming n circle centers of heights yi (i = 1, 2, 3,..., n) far from a top plate and n slip arc radius Rj (j = 1, 2, 3,..., n), defining n*n slip surface Sij according to the yi and Rj, and figuring out a risk coefficient Kij; acquiring a slip risk coefficient curved surface K of the n*n slip surface Sij, and acquiring a curve Kcr=1 by means of the intersection of a plane K=1 and the curved surface K; defining the slip surface depth d as the distance between the intersection of the slip surface and top plate and a coal wall, acquiring a curved surface of the slip surface depth d of the n*n slip surface Sij, and acquiring a curve of a critical slip depth dcr by projecting the curve Kcr = 1 to the curved surface d; figuring out a maximum value dcrmax (ycr, Rcr) of the curve dcr, determining a slip surface as the maximum depth critical slip surface according to the ycr and Rcr, and allowing the value dcrmax to be the depth of the coal wall slip sheet. The method is used for designing and developing control implementation and parameters of the coal wall slip sheet according to the depth during the coal wall management of working face with large mining height.