159 results about "Cross river" patented technology

The invention relates to a secondary locking and temporary fixation structure for a main pier of a cross-river bridge. The secondary locking and temporary fixation structure mainly comprises steel pipe columns, steel pipe column connecting ends, anchor cables, deformed steel bars, brackets, temporary supports and an adjustable template supporting system. The steel pipe columns are arranged on a bearing platform and anchored to the steel pipe column connecting ends embedded in the bearing platform. The anchor cables and the deformed steel bars are arranged in the steel pipe columns, the lower ends of the anchor cables and the lower ends of the deformed steel bars are anchored to connecting end plates in the steel pipe column connecting ends, and the upper ends of the anchor cables and the upper ends of the deformed steel bars are anchored to a cast-in-place box beam bottom plate. The temporary supports are installed on the top of the pier, and the embedded deformed steel bars are arranged in the temporary supports. The brackets are arranged on corbels of the steel pipe columns and provided with a supporting seat, a bottom die is installed on the top face of the supporting seat, the installation angle of an integrated flank template is adjusted through adjustable stay bars, and the integrated flank template is fixedly connected with the bottom die. A core die is supported through an adjustable cross-shaped inner support. A secondary anchoring system is adopted in the structure, and the problem of uneven stress in the 0# block construction process is successfully solved. The invention further provides a construction method of the secondary locking and temporary fixation structure for the main pier of the cross-river bridge.

A water quality in-situ purification method in river estuary relates to a water quality purification method in river estuary, especially relates to river estuary of convergence of lakes and rivers. A deposition pond, a aeration oxidation zone, a facultative pond and a floating island biological purification zone are disposed along rivers flowing into the lake direction in turns in river estuary of the horn-mouth shape region where watercourse crossing rivers and lakes, the method is: a, upstream polluted river water flows into the deposition pond for sedimentation, anaerobic decomposition and plant absorption; b, deposited river water flows into the aeration oxidation zone in order for increasing oxygen content; c, then the river water flows from the aeration oxidation zone into the facultative pond for degradation; d, degraded river water flows into the floating island biological purification zone at last, then the polluted water flows into lake by purification treatment. The invention uses in-situ purification method to process river water, no occupation of watercourse side land, resolving problem of rare land resource in river estuary and difficult to build water quality purification establishment. Key point of the invention provided water quality purification is intensifying absorption of natural hydrophyte and metabolism of microorganism for degrading pollutant in water, the water quality purification effect is obvious and brings no secondary pollution.

A backpack structure having a lifesaving function is made of material capable of floating on water. Connection straps are provided on each end surface of the backpack, which can be buckled with connection straps of another backpack and which can be buckled with connection straps of a water bag filled with air inside. The backpack structure enables users to cross rivers more safely, so as to increase survival possibility in the field, and also to carry personnel, goods or conduct emergency relief on water.

The invention discloses a construction method for pipe retreating of a cross-river pipe jacking pipeline in a soft soil stratum. The method comprises the following steps that firstly, original equipment devices in a pipe retreating pipeline are dismounted and removed, a steel seal door, a reverse jacking hydraulic cylinder, a counter pull steel beam, a steel strand set and other pipe retreating equipment devices are installed, safety measures of the steel seal door, the reverse jacking hydraulic cylinder, the counter pull steel beam, the steel strand set and other pipe retreating equipment devices are checked, and pipe retreating construction is conducted after debugging. In the method, measures of arrangement of a dewatering well and a packing water stop ring are adopted for solving the problem of water stop, and for solving the problem of collapse risks existing after pipe retreating, the manner that pipe retreating and soil filling are conducted at the same time is adopted; and meanwhile, in the later stage of pipe retreating, injected soil slurry is switched into cement slurry, and a hole is strengthened. According to the disclosed technical scheme, the collapse problem is effectively solved, and meanwhile long-distance pipe retreating is achieved.

The invention provides a construction vehicle for a plate-type ballastless track plate. The construction vehicle comprises a frame, a travelling system, a steering system, a track plate transportation paving system, a concrete spouting system, a power device and a control system, wherein the track plate transportation paving system comprises transverse movable hydraulic cylinders, a lifting hydraulic cylinder, fixed pulleys which are arranged on the transverse movable hydraulic cylinders, a rope, a first hydraulic pressure station, a hoisting plate and a first support structure; the transverse movable hydraulic cylinders and the lifting hydraulic cylinder are fixed with the frame by the first support structure and are connected with the first hydraulic pressure station which is controlled by a control system; and the rope penetrates through the fixed pulleys, one end of the rope is connected with the lifting hydraulic cylinder, and the other end of the rope is connected with the hoisting plate. By the construction vehicle for the plate-type ballastless track plate, the problems of difficulty in the transportation and rough paving of track plates, the spouting construction of self-compacting concrete and the like in sites where cranes cannot be used without construction roads and cross-river bridges, and particularly in sections of single-line bridges are solved.

The invention relates to a waterproof structure for sealing a high-water-pressure shield tunnel bolt hole. The waterproof structure is used for filling a gap between a shield tunnel joint connecting bolt and a shield tunnel segment in the position of the high-water-pressure or cross-river or cross-sea shield tunnel bolt hole. The waterproof structure comprises joint bolt gaskets and elastic sealing gaskets with holes formed in sections, wherein the joint bolt gaskets are arranged on the inner side of a nut of the joint connecting bolt in a closely attached mode, and gaps formed by the joint bolt gaskets, a bolt body of the joint connecting bolt and the bolt hole of the shield tunnel segment are filled with the elastic sealing gaskets. Compared with the prior art, the waterproof structure for sealing the high-water-pressure shield tunnel bolt hole has the advantages of being capable of effectively preventing seepage, waterproof, durable, adaptable to stress, convenient to mount and dismounted and the like.

The invention provides a large-span disassembly method of a transmission circuit over a navigable water level, and relates to the large-span disassembly method of the transmission circuit. The previously constructed transmission circuits crossing rivers, lakes or straits have large difficulty for optimized transformation or disassembly reconstruction. The method comprises the following steps: (1) preparing construction and closing navigation; (2) disassembling accessories of conductors and shield wires of a crossing tower, and erecting a pulley; (3) releasing the conductors and shield wires of an anchor tower; (4) carrying out releasing and breaking operation of the conductors and shield wires of the crossing tower; (5) reclaiming used wires, and breaking the conductors and shield wires of the anchor tower and the crossing tower; and (6) detaching the crossing tower. By adopting the method, large-span disassembly construction with navigation requirement can be safe, convenient and quick, and an excellent method reference is provided to similar large-span transformation construction of transmission circuits.

According to the cast-in-place construction method for the large-span diamond-shaped bent cap of the high pier, cast-in-place construction of inclined legs and the bent cap is achieved through a two-part supporting system, in the first part, a combined supporting system is formed through 45a double-spliced I-shaped steel, a channel steel bracket and a slope bracket, and cast-in-place constructionof an inclined leg supporting bent cap structure is achieved; and in the second part, a fastener type steel pipe full framing is erected at the hollow structure on the tie beam which is poured and solidified, square timbers and formworks are laid, and cast-in-place construction of the cross beam is achieved. The construction method is a very simple, effective, safe, reliable, rapid and economicalconstruction scheme for viaducts and municipal bridges constructed under the complex conditions of high piers crossing rivers, valleys crossing, soft soil foundations crossing and the like. By the adoption of the construction technology, the defects that a traditional bracket is difficult to construct, long in construction period, high in cost, large in risk, multiple in potential safety hazard and the like are overcome.

The invention discloses an unmanned surveying ship suitable for shield crossing river construction monitoring. The unmanned surveying ship comprises a ship body, a power system, a detection system anda main control system, wherein the main control system comprises a single chip microcomputer; an advancing obstacle avoidance center is arranged at a nose of the ship body; laser ranging sensors areuniformly arranged on the advancing obstacle avoidance center in the circumferential direction; the laser ranging sensors are connected to the single chip microcomputer; a proximity switch is arrangedin the advancing obstacle avoidance center; the proximity switch is connected to the single chip microcomputer; the detection system comprises an overwater sensor module, an underwater sensor module,an overwater monitor and an underwater monitor; and each of the overwater sensor module and the underwater sensor module is provided with a sensor interface. An obstacle avoidance system is arrangedon a hull, and the obstacle avoidance system is mainly formed by the laser ranging sensors and the proximity switch, and the laser ranging sensors are capable of detecting obstacles in all directionsin order to prevent the hull from colliding with an obstacle. When the hull is very close to the obstacle, the proximity switch can close a steering engine in emergency, and emergency obstacle avoidance is achieved.