6results about How to "Avoid construction risks" patented technology

The invention relates to the technical field of transport rolling unloading operation, in particular to a ship unloader berthing rolling unloading system and method.The ship unloader berthing rolling unloading system comprises a rigid string protection mechanism and a rolling unloading mechanism, and the rigid string protection mechanism is arranged at the edge of a transport ship; the rolling unloading mechanism comprises a deck bridge head, a sleeper, an ashore bridge head, a slope track and a rigid gap bridge, and the deck bridge head is fixedly arranged on the transport ship and corresponds to the deck track; the sleeper is fixedly arranged on the berthing wharf, the ashore bridge head is arranged at the top, one end of the rigid gap bridge is hinged to the ashore bridge head, the other end of the rigid gap bridge is in free lap joint with the deck bridge head, one end of the slope track is located on the wharf track, and the other end of the slope track is located on the sleeper and connected with the ashore bridge head. By changing the traditional roll-roll loading mode of jacking, steering and rail falling and the conventional berthing mode of the transport ship, the effect that the ship unloader unloads the ship from the transport ship conveniently is achieved, the ship unloading risk of the ship unloader is reduced, and the working efficiency of roll unloading operation of the ship unloader is improved.

The present application relates to the technical field of tunnel engineering, in particular to a kind of soft weak surrounding rock shallow-buried unsymmetrical pressure tunnel portal section excavation method, comprising the following steps: S10, slope excavation tunnel excavation contour line above the natural slope of arch top and support;S20, vertical steel pipe pile is built outside tunnel excavation contour line on the side of mountain;S30, set range in tunnel arch portion is built reinforced concrete arch cap;S40, the slope toe of the reinforced concrete arch cap on the side of mountain that has been excavated and supported is backfilled;S50, build tunnel outside retaining wall;S60, the upper part of the reinforced concrete arch cap is backfilled and counter-pressured;S70, tunnel subsurface excavation and support are carried out.The present application can reduce the disturbance of lower construction to slope, avoid the construction risk of dangerous deep foundation pit engineering, improve construction reliability, speed up construction progress and protect ecological environment.

The application relates to the technical field of bridge construction equipment, in particular to a prefabricated and assembled rhombic hanging basket and a mounting method thereof. The rhombic hanging basket comprises a main truss system, a walking system, a bottom basket platform, a suspension system and a composite anchoring system. The mounting based on the rhombic hanging basket comprises the following steps: prefabricating a foldable rhombic truss; using a hoisting device to pull the truss to unfold and pin shaft locking; installing a walking system and other components, using multiple frequency conversion winches to cooperate with displacement sensors, and using a synchronous deviation control algorithm to hoist the bottom basket platform as a whole. In the hanging basket, the rhombic truss can be folded and unfolded, the convenience of transporting and installing the hanging basket on site and putting into construction is improved, the walking system and the composite anchoring system are matched, the efficiency of moving the hanging basket is improved, the automatic synchronous control technology solves the hoisting control problem of the bottom basket under complex environment, the construction efficiency and safety of the hanging basket as a whole are improved, and the risk of high-altitude operation is reduced.

The application provides a remote control method and device for a high-pressure valve for fracturing, which comprises the following steps: acquiring a valve state and fracturing construction data; determining a fracturing construction state based on the fracturing construction data; when the fracturing construction state is a normal state and an operation instruction is received, adjusting the valve state in response to the operation instruction; the operation instruction is generated by an operator based on the fracturing construction data; when the fracturing construction state is an abnormal state, prohibiting valve operation and determining an abnormal type according to the valve state and / or the fracturing construction state. The fracturing construction state is determined based on the fracturing construction data, and the remote operation instruction is executed in the normal state to control the valve state, the valve operation is prohibited in the abnormal state, the construction risk caused by improper operation is avoided, and the abnormal type can be determined to provide timely abnormal suggestions for the operator.

The invention discloses a non-welding photovoltaic support and application thereof, and relates to the technical field of photovoltaic supports. Comprising a pile foundation, a front stand column, a rear stand column, a plurality of hoops, a cross arm, a front inclined strut, a rear inclined strut and an inclined beam. Wherein the hoops are arranged on the pile foundation in a sleeving mode at intervals, the cross arm is located above the hoops and located at the top of the pile foundation, and the cross arm and the two ends of each hoop are connected with the front stand column and the rear stand column correspondingly; one ends of the front inclined strut and the rear inclined strut are respectively connected with two ends of the inclined beam, the other ends are respectively connected with two ends of the lowermost hoop, and the middle part of the inclined beam is respectively connected with the top ends of the front upright post and the rear upright post; all the assemblies are detachably connected through preset connecting holes and bolt structures. The defects of an existing welding process are overcome, fireless, rapid and adjustable connection of the support and the pile foundation is achieved through modular mechanical connection design, the fireless construction requirements of special scenes are met, and the construction efficiency and later adjustability are improved.

The utility model belongs to the field of power transmission line iron tower assembling construction, and particularly relates to a tower section connecting node and a segmented assembled tower, the condition of a lower tower section main material can be monitored and fed back in real time through a distance measuring instrument and a camera which are installed on the upper tower section main material, and constructors can check the state of the tower in real time through a displayer. The requirement for repeatedly climbing and descending the tower is reduced, so that the workload and physical output are reduced, and the construction efficiency is remarkably improved due to the fact that the time for repeated operation and high-altitude operation is shortened. And a real-time monitoring and feedback system enables the construction process to be smoother and more coherent, so that the construction progress is accelerated. The distance measuring instrument and the camera can provide remote monitoring and measuring functions, so that a constructor does not need to carry out high-risk operation below the on-load suspension arm, and the construction safety is improved.