7results about How to "Avoid relocation" patented technology

The utility model relates to a kind of high fill abutment structure of multi-functional bridge, belong to municipal bridge engineering field, including reinforcing section tunnel, pile foundation located below reinforcing section tunnel and abutment body located above reinforcing section tunnel, abutment body does one level embankment structure, it includes caisson bottom plate, caisson front wall, caisson back wall, caisson top plate and caisson baffle, abutment body uses caisson structure, abutment body is provided with bridge superstructure, bridge superstructure is erected with large pipeline above flood level, abutment body is provided with hole, hole is arranged with large pipeline in riverbed bottom, the thinking of caisson structure is integrated into abutment structure, and the role of embankment is also considered, and pipeline crossing bridge and tunnel are jointly built, improve the utilization of abutment, realize bridge and tunnel, embankment, pipeline coexistence by three-dimensional space integration, avoid relocation, reduce engineering coordination difficulty, overcome the expensive cost produced by traditional relocation pipeline or change tunnel position or change bridge site method.

The invention provides a metro foundation pit secant pile shear key construction method without a feet-lock anchor cable, which comprises the following steps of: S1, determining a pile position along a foundation pit sideline according to a drawing; s2, rotary digging and hole forming are carried out, and meat pile holes and shear key holes are formed; shear key holes are positioned at the bottoms of the reinforced pile holes; s3, a reinforcement cage is put in, concrete is poured, and reinforced piles and shear keys are formed; s4, holes are formed in the plain piles, the bottoms of the holes enter the bed rock surface by more than 1 m, then concrete is poured, the plain piles are formed, and the plain piles are engaged with the meat piles; s5, the steps S1 to S4 are repeated, and a closed foundation pit is formed; and S6, subway foundation pit construction is completed. According to the metro foundation pit secant pile shear key construction method without the feet-lock anchor cable and the rotary excavating drill bit, a feet-lock waist beam and the feet-lock anchor cable are omitted, external expansion of the foundation pit is not needed, earth and stone excavation is reduced, mass migration and modification of surface pipelines are avoided, the influence on the surrounding environment is reduced, land resources are intensified, and the construction efficiency is guaranteed.

This utility model discloses a positioning pillow in the field of medical pillow technology that can support a medical neck brace. It includes a headrest, a neck pillow, a raised cushion, a shoulder rest, and a neck brace. Addressing the needs of patients after cervical spine surgery, it adds an adjustable headrest, neck pillow, and shoulder rest. The headrest and neck pillow can be individually adjusted in height to suit the patient's head comfort and provide a more comfortable sleeping posture. A positioning groove is also added to fit the medical neck brace, making it more comfortable for patients to sleep with the neck brace while preventing it from sliding up and down. It does not restrict the patient's left and right head turning movements, providing a certain level of comfort while ensuring the neck brace limits the patient's neck in a set position. Even after the neck brace is removed, the device still provides neck restraint, preventing the patient from nodding or tilting their head back while sleeping, avoiding adverse neck movements during sleep, and protecting patients who have removed the neck brace while sleeping.

The utility model discloses a cutting device for medium voltage power supply gas tank production, which comprises a fixed box, the left side surface and the right side surface of the fixed box are fixedly connected with fixed plates, the upper surface of each fixed plate is fixedly connected with a support plate, the right side surface of each support plate is provided with a connecting groove, and the connecting groove is fixedly connected with the fixed box. And an adjusting plate is jointly arranged in the two connecting grooves, a cutting unit is fixedly installed on the upper surface of the adjusting plate, a medium-voltage power source gas box body is arranged above the fixing box, and two strip-shaped grooves are formed in the upper surface of the fixing box. According to the device, through cooperation of supporting strips and positioning nails, a medium-voltage power supply gas tank body can be rapidly positioned, the phenomenon that the medium-voltage power supply gas tank body is repositioned in the subsequent cutting process is effectively avoided, through cooperative use of a double-end motor, a threaded rod, a clamping plate and a strip-shaped groove, the clamping plate is positioned, and the working efficiency is improved. And the purpose of quickly clamping and positioning the medium-voltage power supply gas tank body is achieved.

The utility model discloses a nuclear magnetic resonance rectal cancer scanning auxiliary device, which relates to the technical field of medical instruments and comprises an injector composed of an injection cylinder, a piston push rod and a plug, the bottom of the plug is fixedly connected with an injection head, and the injection head is located at the eccentric position of the bottom of the plug. The injector injects a contrast agent into the rectum of a patient through the flow guide assembly; the flow guide assembly comprises an injection unit, a positioning unit, a valve unit and a connection locking unit. The positioning expansion bag is arranged, the flow guide tube can be kept in a stable state through friction force between the expanded positioning expansion bag and the anus of a patient, the flow guide tube is effectively prevented from moving outwards, meanwhile, other parts in the flow guide assembly are matched with the injection head, the limiting protruding block and the extrusion round block, and the flow guide tube is more stable. Segmented operation of expansion and contraction of the positioning expansion bag and injection of the contrast agent can be achieved, and the whole operation is simple and convenient.

The application provides a single-hole double-line tunnel station integrated structure based on a variable-diameter shield, which comprises a shield tunnel and a track line, further comprises a shield station, the shield tunnel and the shield station are communicated and coaxial, a partition wall is arranged on the axis, and the track line is double-line and respectively arranged on the two sides of the partition wall; a construction method is further provided to realize the integrated structure. In the application, the double-layer station and the interval are constructed by using the variable-diameter shield method, so that the road occupation, pipeline relocation caused by the traditional open excavation method can be avoided, the pre-construction engineering such as traffic relief and green migration can be eliminated, the road zero-land occupation construction can be realized, compared with the open excavation method for constructing the station, the construction efficiency can be effectively improved and the construction period can be shortened by using the variable-diameter shield method for constructing the whole line.

The present invention discloses an in-situ protection structure and construction method for pipelines in foundation pits of open-cut subway entrances and exits, wherein the pipeline in-situ protection structure comprises support piles, a steel main beam, a steel secondary beam, a grid steel frame and height adjustment bolts; a connecting piece is pre-buried in the support pile, and the support pile is connected to the steel main beam and the grid steel frame through the connecting piece; the steel secondary beam passes through the bottom of the pipe and is placed on the main beam, and the steel main beam is provided with the height adjustment bolt, and the height of the steel secondary beam is adjusted by the height adjustment bolt, so that the steel secondary beam is closely attached to the protected pipeline to form an in-situ protection structure for the pipeline. The present invention avoids pipeline relocation by combining the pipeline in-situ protection structure with the foundation pit retaining structure, so as to effectively shorten the construction period and save the project cost, and at the same time solves the problem of excessive spacing between the retaining piles on both sides of the pipeline, thereby ensuring the safety of the foundation pit and having a strong promotion value.