71results about How to "Reduce construction work time" patented technology

The invention relates to a lateral flat top construction structure and method for a reinforced concrete superposed beam. The structure comprises a temporary buttress system arranged on the side of a pier column beside an existing line, a sliding way is arranged at the top of the temporary buttress system and on a steel cross beam stretching across the upper portion of the existing line, a reinforced concrete superposed beam is erected on the sliding way on one side of the temporary buttress system firstly, and the reinforced concrete superposed beam is in place through a lateral flat top at the skylight point time. The construction working time of the operation line is greatly reduced, the interference of the construction process to the existing operation line under the bridge is minimum,and the construction cost is economical and safest.

The invention discloses an overhead bare conducting wire insulating coating robot, which comprises an insulating coating module, an active driving assembly and a gluing module, wherein the active driving assembly comprises an active driving rack, winding shafts are hinged to the left side and the right side of the active driving rack respectively, the winding shafts are driven by a winding shaft driving device to rotate, gluing connecting parts are arranged on the left side and the right side of the gluing module correspondingly, and the winding shafts on the left side and the right side of the active driving rack are connected with the gluing connecting parts on the left side and the right side of the gluing module through connecting ropes correspondingly. In the embodiment of the invention, the whole overhead bare conducting wire insulating coating robot can be lifted to the height of the overhead bare conducting wire without other lifting equipment, so that the lifting process is simple and convenient, a large amount of manpower and material resources do not need to be consumed, the construction operation time is shortened, the construction cost is reduced, and the operation efficiency and economic benefits of overhead bare conducting wire insulating transformation are guaranteed.

The invention relates to a rotary type fracture sand jet and a multistage sand jetting and fracturing process. The rotary type fracture sand jet is structurally characterized in that an upper connector and a lower connector are connected with the two ends of the fracture sand jet; a rotary type slide sleeve inner core is arranged on the inner circumference of the fracture sand jet; a plurality of shear pin grooves are formed in the middle of the surface of the outer circumference of the rotary type slide sleeve inner core; a plurality of spring type extensible shear pin assemblies are arranged on a fracture sand jet body, and one spring type extensible shear pin assembly falls into the corresponding shear pin groove; a rotary control mechanism is arranged at the end, close to the upper connector, of the rotary type slide sleeve inner core; rotary sand jetting holes distributed evenly and circumferentially are formed in the end, close to the lower connector, of the rotary type slide sleeve inner core; outer sand jetting holes distributed evenly and circumferentially are formed in the fracture sand jet body; and the outer sand jetting holes correspond to the rotary sand jetting holes in position. A rotary opening type is adopted for the fracture sand jet. In the construction process, the opening process is stable and reliable, and construction can be conducted independently for a layer section; and after construction, a slide sleeve of the constructed layer section can be closed, and layered sand jetting management can be effectively conducted for the stratum.

The invention discloses a hydraulic tunnel drilling trolley excavation construction method and device. According to the method, a simple down-the-hole drill trolley combining a down-the-hole drill and a vehicle is used for drilling advanced geological forecast holes, and the advanced geological forecast holes are used as central cut holes. The device comprises the vehicle and the down-the-hole drill installed at the position of a container of the vehicle, and the down-the-hole drill is connected to the vehicle through a drilling machine platform; the drilling machine platform is provided with a supporting base used for supporting and controlling the drilling direction of a drill rod of the down-the-hole drill; and the down-the-hole drill is connected with the drilling machine platform through a connecting plate and a fastening bolt. The tunnel drilling trolley (the simple down-the-hole drill trolley) combining the down-the-hole drill and the vehicle is used for drilling the advanced geological forecast holes, the problem of complex tunnel geological conditions for advanced detection is solved, the advanced geological forecast holes are used as the central cut holes, drilling and chemical use of the cut holes are reduced, and the tunnel single-wheel circulation footage length is increased.

The invention discloses a power transmission project prefabricated foundation installation and iron tower assembly coherent construction method which includes the following steps of re-measurement andpit dividing, construction plane design, ground tower assembly, foundation pit excavation, foundation backfill, process changing acceptance and overall tower erection. Through the technical scheme, aconstruction process of "foundation construction first, then tower assembly on the ground" in the prior art is adjusted to " tower assembly first, then foundation construction", the on-site development of a flow process mode of "personnel flow with machinery, continuous machinery operation and process close connection" is facilitated, the close connection of ten processes of "on-site re-measurement, pit dividing positioning, construction plane design, ground tower assembly, foundation pit excavation, prefabricated foundation transportation and installation, grounding installation, foundationbackfilling and compaction, process changing acceptance and overall tower erection" can be realized, the overall construction efficiency of the line foundation and the iron group assembly is improved,the construction period is shortened and controllable, the fully mechanized construction of the line engineering is realized, the economic benefits are significant, and the safety risks are reduced.

The invention provides a method for controlling bridge deformation in a road underneath pass high-speed rail bridge project. The method comprises the steps: calculating the lengths of U-shaped grooves in a lower jacking section and a cast-in-place section of an existing high-speed rail bridge, the distance between a foundation pit and the existing high-speed rail bridge and the number and length of underground road protection piles on the two sides of the U-shaped grooves in the underneath pass range of the existing high-speed rail bridge; excavating a foundation pit in a layered mode, prefabricating a jacking section U-shaped groove structure, arranging a temporary U-shaped groove jacking rigid frame on the jacking section U-shaped groove structure, constructing a back pile, and installing a jack jacking system; while the foundation pit is excavated, constructing road protection piles; solidifying soil under a bottom plate of the U-shaped groove structure of the jacking section; gradually jacking the jacking section U-shaped groove in the direction of the existing high-speed railway bridge along the designed gradient, and excavating a soil body at the front end of the jacking section U-shaped groove while jacking is conducted; in the jacking process, dynamically controlling the ballasting measures; after the U-shaped groove of the jacking section is in place, constructing the U-shaped groove of the cast-in-place section; and gradually reducing the weight. The bridge pier abutment top deformation can be controlled to meet the new regulation requirement.

The invention relates to a tool fixture for drilling and tapping. The tool fixture comprises a disk, a connecting block, a connecting shaft, a rotary plate and a clamped connector, wherein a first positioning hole and a second positioning hole are formed in the surface of the disk, and a first cutting hole is formed in the center of the disk; a fixing hole is formed in the right side of the first cutting hole, and a second cutting hole is formed behind the first cutting hole; the connecting block is connected with the disk, and a threaded hole is formed in the center of the connecting block; an external thread is arranged on the left side of the connecting shaft, and the connecting shaft is in mesh connection with the threaded hole in the center of the connecting block; the rotary plate is connected with the connecting shaft, and a spring is arranged in the connecting shaft; one end of the spring is connected to the bottom of the connecting shaft, and the other end of the spring is connected with the clamped connector. The tool fixture is convenient for a user to drill or tap, the working efficiency of constructors is effectively improved, the working quality of the constructors is greatly increased, and the working time of the constructors is effectively saved.

The invention relates to a contact pipeline well used on an inclined ore and a construction method of the contact pipeline well. The contact pipeline well comprises an upper end driftway, a lower end driftway, a vertical pore channel and a lower end pore channel, one end of the vertical pore channel communicates with the upper end driftway, the other end of the vertical pore channel communicates with one end of the lower end pore channel, and the other end of the lower end pore channel communicates with a lower end driftway; and the construction method comprises the steps that a raise-boring machine is utilized to drill the vertical pore channel and a full-hydraulic trackless drill jambo is utilized to drill horizontal pore channels. By adopting the technical scheme of the contact pipeline well used on the inclined ore and the construction method of contact pipeline well, the pipeline well is not parallel to the side face of a slope of the ore body while being composed of the vertical pore channel and the multiple horizontal pore channels, the work such as explosive filling and blasting do not need to be conducted on the ore body in the construction technology, so that the construction technology is simplified, the damage to internal stress balance of the ore body and pollution to the environment are avoided, and the construction working efficiency of the pipeline well is improved.

The invention discloses a prefabricated foundation for power transmission engineering. The prefabricated foundation comprises a foundation upright post and a foundation base. The foundation upright post is arranged on the foundation base and is provided with a foundation main rib and a foundation bolt, and the upper end of the foundation bolt is exposed out of the upper surface of the foundation upright post and is used for being connected with an iron tower; and the foundation base is provided with a lifting ring, and the ring part of the lifting ring is exposed out of the upper surface of the foundation base to be connected with a crane through a connecting piece. The foundation for power transmission engineering is designed as the prefabricated foundation, so that the manufacture of a concrete foundation is completed in advance in a factory, formwork erection, casting and curing are carried out in a centralized mode, the process control and curing environment can be controlled strictly, the cost can be saved to a great extent, the quality of a foundation finished product can be improved, the curing period can be shortened by 28 days, meanwhile, the construction operation time onsite can be reduced by 80%, and personnel can be prevented from getting up and down a foundation pit; and the safety risk of personnel working in the foundation pit is avoided, the pollution of concrete to the environment is avoided, the mechanization degree of a construction site is improved, and the construction period is controllable. In addition, the prefabricated foundation is convenient totransport and install.

The invention discloses a wireless transmission well testing system of an ultra-deep well and relates to the filed of dynamic monitoring of an oil reservoir, in particular to a device for a pressure buildup test for an oil gas production well. The proposal utilizes a ground receiving device, a cable, a supporting cylinder, a sensing system and a ball valve; the supporting cylinder is connected with the upper part of the ball valve; the outer wall of the supporting cylinder is provided with a groove; the inside of a tube is provided with a pressure transmission passage from the lower part of the ball valve to a groove of a direct-reading manometer; the sensing system comprises the direct-reading type manometer, a cell and a receiver; the direct-reading type manometer and the cell are arranged inside the groove of the outer wall of the supporting cylinder respectively; the direct-reading type manometer consists of a sensor, an A / D module, a microcontroller, a signal emitter and a transmitting coil which are sequentially connected; the receiver consists of a receiving coil, a signal receiver, a microcontroller and a signal transmitter which are sequentially connected; and the receiver is arranged inside the supporting cylinder and is connected with the ground receiving device through the cable. The proposal realizes well shutdown underground, avoids accumulation in a well cylinder, shortens the well testing period, can fully avoid causing incomplete underground pressure buildup curve by insufficient time for well shutdown, can set sampling density at any moment through a ground computer, avoids causing the loss of wire section in early stage and meets the testing requirement of well testing of the oil gas well.

The invention discloses a ground wall pre-buried slideway type steel support foundation pit supporting system and a construction method thereof. The supporting system comprises a pre-buried slideway (1), a fixing bolt (2) and a steel support (4). The embedded slide way is installed on a reinforcement cage (3) of a ground wall (31) in an embedded mode, and the embedded slide way is arranged along the supporting position of the steel support; notches of the pre-buried slideways on the ground walls on the two sides of the foundation pit are oppositely arranged, so that the two ends of the steel support can be inserted into the pre-buried slideways through the notches respectively, and the steel support can slide along the pre-buried slideways; a plurality of bolt holes are formed in the pre-buried slide way, bolt holes are formed in the two ends of the steel support, and the fixing bolts penetrate through the pre-buried slide way and the steel support through the bolt holes, so that the end of the steel support is fixed in the pre-buried slide way through the fixing bolts. All the steel supports are placed through the pre-buried sliding ways, and the problem that follow-up support hoisting is affected by cross operation conflicts, steel support stacking and loading and dense supports on a construction site can be effectively solved.

The invention relates to a swing-stopping and vertical-supporting composite device for a B-type LNG fuel cabin. A plurality of the swing-stopping and vertical-supporting composite devices are arranged between a bottom plate (2) of the B-type LNG fuel cabin (1) and a bottom plate (3) in a ship body, and the plurality of swing-stopping and vertical-supporting composite devices are longitudinally arranged along the center line of the cabin; and each swing-stopping and vertical-supporting composite device structurally comprises an upper support, a lower support and laminated wood between the upper support and the lower support, the upper support is connected with the bottom plate (2) of the B-type LNG fuel cabin in a welded mode, and the lower support is connected with the bottom plate (3) in the ship body in a welded mode, and the laminated wood comprises vertical laminated wood playing a supporting role and transverse laminated wood (6) playing a swing stopping role. The swing-stopping and vertical-supporting composite device has the swing stopping function and the vertical supporting function at the same time, the number of supports of the B-type LNG fuel cabin is greatly reduced, the material utilization rate is increased, and the construction operation time is shortened.