101results about How to "Solve the blocking problem" patented technology

The invention discloses an anti-seepage and leak-blocking construction method for excavation of a subway foundation pit in a soft soil area, which comprises the following steps: 1) joint pre-reinforcement construction of an underground continuous wall: constructing a pre-reinforcement structure of a high-pressure rotary jet grouting pile, guiding holes, grouting by a sleeve valve pipe, sealing the holes, guiding the holes again and pre-burying the sleeve valve pipe for standby; and 2) the excavation of the foundation pit and the anti-seepage and leak-blocking construction: using surface floating earth for clearing and using the encased steel plate reinforcement method for anti-leak treatment for the situations that joints of the underground continuous wall have defects definitely and risk points are positioned below the excavation surface of the foundation pit, adopting the hole-guiding cyanogen injection condensing method for blocking of leak points with slight water leakage situation, adopting the horizontal hole grouting method for blocking for the water leak points with serious water leakage situation, and carrying out filling, grouting and reinforcement through the pre-buried sleeve valve pipe after completing the blocking. The method has reasonable design, convenient construction, comprehensive consideration, good anti-leak and leak-blocking effect, fast leak-blocking speed and can solve the problems of pipe blocking, poor anti-leak and leak-blocking effect, slow construction progress and the like in the existing anti-leak and leak-blocking construction.

The invention discloses a method for seeking for an overall situation time optimal path under a dynamic time varying environment. The method comprises the following steps: extracting environment state information; molding the space of the environment; carrying out time division on the environment according to the environment state information, namely dividing a time axis into a plurality of time intervals and utilizing time consumption to represent an environment state of each time interval; utilizing an improved A* algorithm to search the environment state to obtain the overall situation time optimal path; introducing weight to realize a multi-scale path planning aim. The method can be used for realizing the aims of obstacle avoidance of indoor robots and path optimization of the complicated time varying environment of outdoor road traffic; the weighing can be carried out between time cost and distance cost according to different requirements of users to formulate the optimal path and accurately calculate the time spent for the route.

The invention discloses a method for producing a polyacrylamide microsphere water shutoff agent. The method comprises the following steps: weighing raw materials of acrylamide, salt tolerance monomers, N and N-methylene-bis-acrylyl, span 80, potassium persulfate, hexamethylene and deionized water; stirring and mixing a dispersing agent and the hexamethylene in a polymerizable monomer; and performing initiation and polymerizing to form the water shutoff agent. Compared with the prior art, the method process of the invention is simple and environmental-friendly, the particle diameter of the polyacrylamide microsphere water shutoff agent is controlled in the particle size range within 8-175 Mum, the maximum oil reservoir temperature can reach 170 DEG C, swelling rate and the salt tolerance performance are significantly improved, and the plugging problem of injected liquid in the more-than-ten-meter depth profile control can be effectively solved.

The invention discloses a well sealing waterproof construction method for a dewatering well. The method comprises the following steps of: (1) constructing a foundation bed on the surrounding of the dewatering well; (2) embedding a steel sleeve for sealing the dewatering well in a foundation pit; (3) laying a waterproof roll material on the foundation bed, and then pouring a fine aggregate concrete protective layer on the waterproof roll material; (4) clamping a waterproof plate on the outer wall of the waterproof roll material on the outer wall of the steel sleeve in an abutted way; (5) clamping the waterproof plate by using a copper strip; (6) injecting a sealing adhesive to the waterproof plate; (7) pouring bottom plate concrete to the fine aggregate concrete protective layer; (8) pumping water; (9) embedding a sealing plate in the steel sleeve; (10) after filling gravels into a filling pipe, injecting a cement paste into a cement paste injection pipe, and stopping the injection of the cement paste until the paste in an overflow pipe flows out; and (11) pouring concrete into the steel sleeve above the sealing plate. Through the adoption of the well sealing waterproof construction method disclosed by the invention, a waterproof treatment problem at the connection of the dewatering well in the foundation pit and the foundation bottom plate in the whole dewatering well sealing waterproof system is solved.

The present invention provides a P2P method supporting VoIP communication. A VoIP terminal and a server are all one node in the P2P network, and all nodes form an overlay network in the P2P network. The method of the invention comprises establishing the P2P network, selecting and establishing path. The whole P2P network is divided into three layers and four roles, wherein the three layers are a common node layer, a super node layer and a middle node layer. The four roles of P2P nodes are the following: NN: common node, FN: forwarding node, SN: super node, and CN: middle node of P2P network. Firstly the NN needs to be registered to SN. The SN receives the registration of NN/FN. The CN takes charge of establishing various regulations and strategies, at the same times takes charge of information exchange between SN-1 and SN-2, receives the registration of SN, manages the total network FN list, transmits an FN list to the SN and transmits a strategy to NN/FN. The VoIP and medium flow are all transmitted through a virtual path combined between NN/FN.

The invention provides a construction method for new pipe connection and original pipe plugging in large-scale sewage pipeline relocation. The construction method comprises the following steps: firstly, a new pipe receiving well is constructed beside an existing working well adjacent to the original sewage pipe, and the shaft wall of the existing working well is sawn, so that the new pipe receiving well is communicated with the existing working well; and then the original sewage pipe is temporarily plugged by adopting temporary plugging gate in the existing working well, wherein the temporaryplugging gate comprises a grille steel frame and a steel baffle. After the temporary plugging gate is installed, the diver goes down the shaft and plugs the original sewage pipe at the downstream partof the temporary plugging gate with brick masonry stone. After the plugging is completed, the underwater concrete is poured between the temporary gate valve and the plugs. The method adopts a temporary gate for temporary blocking, which can reduce the impact force of water flow on the diver and the blocking wall, reduce the operation risk, improve the blocking construction quality, and reduce theconstruction risk in the excavation process of the deep foundation pit of the metro.

The embodiments of the invention disclose a message alert method and a message alert device for multi-open applications, and a mobile terminal, and relate to the field of mobile terminals. The method comprises the following steps: acquiring the message content of an unread message in a message queue of a target application; extracting keywords contained in the message content, and judging whether the message content meets a preset priority alert condition according to the keywords; determining the priority of the unread message according to the judgment result; and adjusting the alert strategy of the unread message according to the priority, and giving a message alert according to the alert strategy after adjustment. According to the embodiments of the invention, the problem that the messages of a split application of a multi-open application may be shielded is solved, a message with higher priority can be handled first on the basis that all messages can be handled, and the application management efficiency of the mobile terminal is improved.

The invention discloses a foam plate cutting machine. The foam plate cutting machine comprises a workbench with wheels. The wheels are driven through a motor arranged on the workbench. Linkage cutting devices used for evenly cutting a large plate into a plurality of thin plates are arranged on the two sides of the workbench. The cutting devices are provided with wire adjusting devices used for adjusting the number of cutting wires and the distance between the cutting wires. The workbench is further provided with a segmented cutting device used for cutting the thin plates into finished plates in a segmented manner. The foam plate cutting machine further comprises a control device used for controlling the motor, the cutting devices, the wire adjusting devices and the segmented cutting device. The foam plate cutting machine is high in automation degree, wide in machining range and capable of achieving rapid cutting. The cut planes of the cut plates are smooth, the cutting quality is good, the cutting efficiency is high, the cutting process is free of retardation, and environment friendliness is high.

The invention belongs to the technical field of mobile terminals, and provides a method and device for detecting the rotating angle of a camera and a mobile terminal. The method is applied to the mobile terminal, and the mobile terminal comprises a mobile terminal body, the camera and a rotating type connecting structure. The mobile terminal body comprises a first acceleration sensor, and the rotating type connecting structure comprises a second acceleration sensor. The method comprises the steps of obtaining the output value of the first acceleration sensor, according to the output value, determining the inclination angle of the mobile terminal body, obtaining the output value of the second acceleration sensor, according to the output value, determining the inclination angle of the camera, and according to the inclination angle of the mobile terminal body and the inclination angle of the camera, calculating the rotating angle of the camera. The rotating angle of the camera is detected according to the acceleration sensors, the accuracy and stability of detecting the rotating angle of the camera are improved, and the idling and rotation blocking problems in the rotating process of an existing camera are solved, and the production cost is reduced.

The invention relates to a tunnel empty-hole mud vibration-reduction-control blasting method capable of reducing vibration and noise. According to the method, hole drilling is positioned according to a drilling and blasting arrangement diagram; before powder charging, high-pressure air is used for sweeping holes, rock emulsion explosives and non-electric second-delay detonators are respectively selected, the powder charging holes are charged with powder according to a vibration reduction blasting parameter design list, the periphery holes are charged with the powder at intervals, the rest of the blastholes are continuously charged with the powder, the powder are charged to the bottoms of the holes, tamping is used for plugging the holes in place, and the empty holes are filled with plastic bags with mud; and the detonators are connected in place according to requirements, equipment and persons are all evacuated outside the safe distance, and detonation is carried out after the equipment and the persons are confirmed to be safe. The method has the advantages that the hole bottom blasting force can be enhanced, the blasting footage can be increased, particularly, reflection, refraction and absorption of the blasting shock waves can be strengthened, the process of shock wave->attenuating->stress wave->attenuating->seismic wave can be accelerated, the blasting vibration and noise can be greatly reduced, the blasting vibration speed is detected to be lees than 5cm/s, the phenomenon that people are disturbed can be greatly reduced, and the good technical economic effect can be obtained.

The invention provides a drift and fill type open stope subsequent backfilling mining method. The mining method comprises the following steps that 1, a mining area is arranged to be of multiple mining layers (1), and each mining layer is provided with multiple mining roadways (2); 2, after mining is finished in one part of the mining area inside each mining roadway (2), filling is carried out on the part of the mining area, then mining is finished in the other part of the mining area inside the corresponding mining roadway (2), and then filling is carried out; 3, before mining is finished in one part of the mining area of each mining roadway (2), top plates (5) are arranged on the top (3) and the side face (4) of the corresponding mining roadway (2). By the adoption of the mining method, the ore body inside each mining roadway can be supported and fixed, the mining roof-contact arrangement difficulty is lowered, mining can be carried out in each mining roadway conveniently, the mining efficiency is improved, and the mining safety is improved.

The invention discloses a construction method of a tunnel portal water stopping structure for shield excavation and shield arrival. The construction method includes the steps that firstly, water stopping steel brushes are installed, specifically, before shield tunneling construction, two circles of water stopping steel brushes are installed in the excavation tunnel portal and arrival tunnel portalcorrespondingly, each circle of water stopping steel brushes includes a plurality of water stopping steel brushes arranged on the inner walls of portal steel rings in the circumferential direction and forms inner side water stopping rings; secondly, tunnel portal outer side water stopping structures are installed, specifically, the portal outer side water stopping structures are installed on theouter sides of the tunnel portal steel rings, and each tunnel portal outer side water stopping structure comprises a rubber curtain cloth and a folding pressing plate; thirdly, sealing grease is filled, specifically, each water stopping steel brush is filled with the sealing grease; and fourthly, shield excavation is carried out. According to the construction method of the tunnel portal water stopping structure for the shield excavation and the shield arrival, the design is reasonable, and the use effect is good, inner side water stopping rings on the portal steel rings are combined with the tunnel portal outer side water stopping structures to stop water, the construction is simple, damage is avoided, the problem of water stopping of the excavation tunnel portal and the arrival tunnel portal in the construction of shield tunneling method can be effectively solved, and the effect of the portal water stopping is good.

An exhaust duct comprises a hollow exhaust duct body, an air intake on the exhaust duct body, one or more than one backoff or projected brace table outside the exhaust duct body; the shaped of the brace tables are same or different; the bearing surface is horizontal or inclined or flattened or rough or normal or abnormal. The brace table is added on the prior exhaust duct body whatever the brace table is backoff or projected, in order to support, fix the bottom formwork between the duct and the floor plate aperture, therefore the aperture slurry sealing problem between the floor plate and the duct is solved, furthermore the gas staining, odor staining, pressure leakage between the layer and layer can be prevented and the invention also provides many preferable executive plans, such as adding various function components, duct material selection and design the material structure.

The embodiment of the invention discloses a Web script exception handling method and device, relating to the technical field of a computer. The method comprises the following steps: intercepting an exceptional event handler method in a Web script, and rewriting the exceptional event handler method to capture and handle exceptions according to the rewritten exceptional event handler method; intercepting a callback method in the Web script, and rewriting the callback method; and injecting exception capture handling logic into the rewritten callback method to capture and handle the exceptions according to the exception capture handling logic. Through the steps implemented by the invention, exception capture code logic and service code logic can be highly separated, and the blocking of the exception capture code logic to the service code logic can be effectively solved, and the reliability of Web script exception handling can be improved.

The invention discloses a deep foundation pit earth pressure controlled blasting method which comprises the following steps: before hole drilling, cleaning up floating slag, living stones and hydrops on a working face; perpendicularly drilling holes in a designated position, wherein the bottoms of shot holes are basically on the same horizontal plane; clearing the holes after hole drilling; producing stemming, selecting standard emulsion explosive for powder charging, using non-electric millisecond delay detonators and detonating cords, and carrying out firm wiring; covering blasting bodies with steel plates and sandy soil, and finally, releasing water to fill gaps in the shot holes and the up-down gaps of the steel plates; arranging sandy soil piles to surround the side, close to a high-tension cable, an existing line, a residential area and a workshop, of a bridge pier, especially the sections close to the high-tension cable and the existing line; arranging a blasting guard at each crossing; after a monitor sends out a blasting command, picketing and starting to carry out blasting after ensuring that the surrounding is safe by a blasting staff; and removing the guard after ensuring that a danger is removed. With adoption of the method, the construction speed is accelerated, the blasting shaking speed, blasting dust and noise are reduced, safety of the residential area and the workshop is ensured, the work hindrance problem by villagers is solved, and the economic loss of an enterprise is reduced.

The invention discloses a motor-driven connecting rod type cushion folding mechanism. Two mounting brackets are symmetrically arranged on two sides of a rear transverse pipe, two connecting rod mechanisms are symmetrically arranged on two sides of a seat frame bent pipe, each connecting rod mechanism comprises four connecting rods, the rear end of the first connecting rod is hinged to the upper side of the mounting bracket, and the rear end of the second connecting rod is hinged to the lower side of the mounting bracket; and the upper end of the third connecting rod is hinged to the rear end of the seat frame bent pipe, the middle of the third connecting rod is hinged to the middle of the first connecting rod, the lower end of the third connecting rod is hinged to the front end of the second connecting rod, the upper end of the fourth connecting rod is hinged to the front end of the seat frame bent pipe, the lower end of the fourth connecting rod is hinged to the front end of the first connecting rod, and the transmission device is connected with the connecting rod mechanism. The folding mechanism is ingenious in design, can be easily folded by 90 degrees or larger than 90 degrees, increases the available space of a rear row seat to the maximum extent, solves the problem that an aisle in a vehicle is blocked by the seat, and improves the use convenience and comfort of the seat.

The invention discloses a geotechnical engineering sectional type hollow grouting anchor cable device. The device comprises a hollow grouting anchor cable or a hollow grouting pipe, and further comprises sectional isolators; the hollow grouting anchor cable comprises a grouting inner pipe and a steel strand; a plurality of grout outlet holes and constant-pressure sealing sleeves used for sealing the grout outlet holes are arranged on the grouting inner pipe or the hollow grouting pipe; the sectional isolators are arranged on the hollow grouting anchor cable or the hollow grouting pipe; and thesectional isolators are arranged among the grout outlets formed in the hollow grouting anchor cable or the hollow grouting pipe. According to the geotechnical engineering sectional type hollow grouting anchor cable device, due to the arrangement of the sectional isolators and the constant-pressure sealing sleeves, corresponding sectional and graded grouting can be conducted according to differentreinforcing or sealing requirements of stratum surrounding rock of different parts, the grouting amount of deep surrounding rock can be increased according to needs, the grouting reinforcing or sealing effect can be remarkably improved, a large amount of re-injection or re-repair cost is saved, and particularly potential safety risks caused by surrounding rock collapse and re-repair can be effectively avoided.

The invention relates to a method for leaking stoppage between foundation pit enclosing piles. The method comprises the following steps that a fixing piece is provided, the fixing piece is placed on the bottom surface of an excavated part of a foundation pit, the fixing piece is fixedly connected with the fender posts on the two sides of a leaking part, so that the fixing piece shields the leaking part, and a pouring space is formed by enclosing the fixing piece and a soil body between the two fender posts; and grouting is carried out in the pouring space to block the gap between every two adjacent fender posts, and therefore accumulated water is prevented from leaking into the foundation pit from the leaking part. The problem that the leaking part between the fender posts is difficult to block is effectively solved, the gap between every two adjacent fender posts is blocked, underground water is prevented from flowing into the foundation pit from the gap between the fender posts, the construction quality is guaranteed, and potential safety hazards are eliminated.