35results about How to "Does not affect the construction period" patented technology

The invention discloses a method for exchanging a tool of a shield machine for tunnel construction, which comprises the steps of: (1) soil cabin replacement filling: performing the process of soil cabin replacement filling by using a spiral excavating machine and a slip casting system synchronously working with the spiral excavating machine; (2) advanced slip casting inside the machine: beating a plurality of slip casting pipes into the soil on the upper part of the shield machine from inner to outer inside the shield machine by respectively passing through a plurality of advanced geologic holes and then synchronously injecting cement paste into the soil on the upper part of the shield machine through the slip casting pipes by using a slip casting device till the cement paste cannot be injected any more; (3) cleaning cabin and exchanging tool synchronously: manually cleaning the cement plaster solidified inside the soil cabin and synchronously exchanging the tool mounted on the shield machine; and (4) getting rid of the difficult position of the shield machine and recovering the process. The method provided by the invention has the advantages of reasonable design, convenience for operation, low cost, high safety factor, good use effect and capable of solving the problem that the tool cannot be exchanged in the traditional tool exchanging mode under severe tool exchanging conditions.

The invention discloses a tunnel surrounding rock scanning and observing system based on a dual-shield TBM technology. The system comprises multiple scanners and an upper computer; the upper computeris positioned at the axis of the shield of an auxiliary propulsion oil cylinder position; the scanner is installed at each observing hole of the shield of the cross section of the auxiliary propulsionoil cylinder. According to the system provided by the invention, the scanner is installed at the preset observing hole on the rear shield to achieve direct measurement; data is collected via multiplecoordinate systems and processed in a unified manner; a scanning system for propelling observation on the profile of the tunnel surrounding rock and rock appearance by accompanying tunneling similarto well logging during drilling is formed; drawing of a two-dimensional profilogram of the cross section of a tunnel, building of a three-dimensional model of the actual excavation face of the tunnel,surrounding rock appearance imaging of the cross section of the tunnel, and three-dimensional rock appearance imaging of the actual excavation face of the tunnel within a certain angle range of the top of the whole tunnel can be achieved; in addition, the scanners and the upper computer are installed in a modularized manner, and the internal different modularized measurement devices can be changed according to needs, to achieve more functions.

The invention belongs to a vibration isolation roofing equipment foundation construction in the field of construction engineering vibration isolation. According to the technical scheme, a concrete constructional frame is placed flat on a roofing waterproof insulation layer, constructional columns are arranged at the corners of the concrete constructional frame, and column feet of the constructional columns are fixedly connected with a structural layer; a protective layer, an elastic cushion layer, a waterproof layer and a concrete slab floating building layer are successively laid from bottomto top on the space in the concrete constructional frame; and a connecting ring is arranged at the frame edge of the concrete constructional frame, one end of the connecting ring is connected with theframe edge, the other end of the connecting ring is connected with the top surface of the concrete slab floating building layer, and the finished surface is laid on the roofing waterproof insulationlayer outside the concrete constructional frame. According to the vibration isolation roofing equipment foundation construction, the problem of vibration isolation and waterproofing of a roofing equipment foundation is conveniently solved, building cold bridge formation is reduced, the effect of solid sound transmission on the building space under a roofing is lowered, the purposes of environmental protection and energy saving are achieved, and meanwhile, reasonable control and layout the heights and planes of buildings by architects are convenient.

The invention relates to a mining intelligent drilling pressure relief device and a using method thereof, and belongs to the technical field of coal mining equipment. The device comprises a machine body support, a control system, an identification sensing system and a drilling system, wherein the front end of the machine body support is connected with universal wheels through universal wheel supports, driving wheels are arranged on the two sides of the rear end of the machine body support respectively, the identification sensing system is arranged on the machine body support, the drilling system is arranged at the front end of the machine body support, the control system is arranged at the rear end of the machine body support, and the driving wheels are connected to the control system. According to the device, automatic control is carried out through the control system in the whole process, the pressure relief workload is effectively reduced, meanwhile, construction is facilitated, theconstruction speed is increased, and the construction period is not affected.

The invention relates to a novel energy dissipation and shock absorption inter-tower connection structure of a framing tower-connected cable-stayed bridge. The structure comprises bridge tower bearing platforms, bridge tower columns are fixed to the bridge tower bearing platforms, the bridge tower columns are divided into upper tower columns and lower tower columns through bridge tower cross beams arranged on the bridge tower columns, and the bottom ends of two bridge towers are connected through a combined structure bearing platform straining beam between the bridge tower bearing platforms; inter-tower steel box inclined struts are arranged between tower limbs of the lower tower columns, so that the two bridge towers form local connection; and steel corbels are installed on the tower columns at the positions of the bridge tower cross beams, and dampers are installed between the two bridge towers through the steel corbels. According to the framing tower connecting structure form provided by the invention, on the basis of not influencing the construction period of the bridge tower and not increasing the construction difficulty, the transverse bridge direction earthquake response of the bridge tower is greatly reduced, and the anti-seismic property, the safety and the economical efficiency of the bridge tower are greatly improved.

The invention relates to the field of construction and particularly relates to a track climbing type monolithic architecture construction scaffold which comprises a frame body and a rack bracket, wherein the rack bracket is fixed on a building wall through a bolt; the frame body is in slip connection with the rack bracket through a fixed pulley; a motor bracket is arranged on the frame body; an electromotor is arranged on the motor bracket; and a transmission shaft of the electromotor is provided with a transmission gear matched with a rack of the rack bracket. The scaffold provided by the invention is directly mounted for use along with the construction of the building main body, the scaffold lifting speed is increased, the construction period is shortened, and the production efficiency is improved; and moreover, the frame body has strong overall stability, the working range of people construction is widened, and the construction is facilitated.

The invention discloses an underground construction deformation joint waterproof structure and a construction method thereof. The waterproof structure comprises a deformation joint, and an expansion cavity formed in the position 30 to 70 mm away from the top of the deformation joint, and the interior of the expansion cavity and deformation joint space above the expansion cavity are filled with a seal material with the waterproof effect; the construction method comprises the steps that firstly, a frame of a precast concrete wall is built, an expansion cavity mold in the corresponding shape is made, and the position of the preset expansion cavity is marked in the position, 30 to 70 mm away from the top o the deformation joint, in the reserved deformation joint; secondly, the expansion cavitymold is placed on the marked deformation joint and is used for supporting so as to form the expansion cavity; thirdly, concrete is poured into the frame for prefabrication molding, and after curing solidification, the expansion cavity mold and the frame are removed; fourthly, the position, below the expansion cavity, in a deformation joint hole is filled with a flexible filler, and a seal material with the waterproof effect is poured into the expansion cavity and the deformation joint space above the expansion cavity. The structure is simple, the function is reliable, the construction methodis simple, operation is easy, and the cost is low.

The invention provides a construction method of an underground pipe gallery through an underground concrete water pipeline. The construction method comprises the following steps that a foundation pit is excavated around the concrete water pipeline by adopting a sloping construction method; the external two sides of a slope are each provided with a conversion pool, a steel pipe is arranged between the two conversion pools, and the two ends of the steel pipe extend into the two conversion pools correspondingly; the portions, in the two conversion pools, of the concrete water pipeline are provided with a water inlet and a water outlet correspondingly; the concrete water pipeline is cut off between the two conversion pools, and cut-off openings are blocked; pipe gallery construction is conducted; and after pipe gallery construction, backfilling is conducted to the position below the concrete water pipeline by a set distance, a concrete plate belt with the thickness being the preset distance is arranged between the two conversion pools, the concrete water pipeline is recovered, the first conversion pool and the second conversion pool are dismounted, backfilling is conducted to a roadbed, and the road surface is constructed. According to the construction method, the steel pipe is adopted, after excavation of the pipe gallery is completed, the concrete water pipeline is recovered, and it is ensured that corrosion prevention and sludge removing of the concrete water pipeline after construction do not need to make a detour.

The invention relates to a slidable construction stable annular beam applied in the process of high-rise and super high-rise framework core tube construction and belongs to the technical of structural projects. The slidable construction stable annular beam is composed of steel annular beams and fastening pieces. The steel annular beams are horizontally placed between adjacent framework columns, and the two ends of the steel annular beams are connected with the annular fastening pieces. The annular fastening pieces can be arranged on the peripheries of the framework columns in a sleeving mode and fixedly connected with the framework columns. The construction stable annular beam can slide in the height direction of a framework core tube structure system through the mode of locking and opening the fastening pieces. The slidable construction stable annular beam is constructed by full steel, the self weight is light, and site assembling and mounting are convenient and fast. The slidable construction stable annular beam only needs to be mounted at a time in the construction process of the same project. The stabilizing problem of the cantilever framework columns in the process of each construction step is solved through vertical sliding, and multiple times of disassembling and assembling are not needed. Disassembling, recycling and circular using are easy, therefore, the cost can be saved to the maximum extent, the construction period can be shortened to the maximum extent, and meanwhile the environment influence of the slidable construction stable annular beam is reduced to the maximum extent.

The invention discloses a cast-in-place concrete pile static load test unbalance loading monitoring method based on piezoelectric impedance frequency shift. In the pouring process of the cast-in-placeconcrete pile, a plurality of piezoelectric ceramic part sensors distributed in the circumferential direction are pre-buried in the top of the pile, the piezoelectric ceramic part sensors are led outof a pile body through cables to be connected with an impedance analyzer, the impedance analyzer is connected with a computer terminal, and the cast-in-place concrete pile is poured and maintained. Post-maintenance, static load test platform, a signal generator generates an excitation signal through a piezoelectric ceramic part sensor when not loaded, an electrical impedance signal received by the piezoelectric ceramic part sensor serves as a reference signal, load loading is conducted, electrical impedance signals of sensors at different loading stages are monitored and compared with the reference signal, and pile top section unbalance loading is judged according to the change of the electrical impedance signals. The cost is low, the monitoring and testing processes are synchronous, andthe monitoring accuracy can be ensured to the maximum extent.