50results about How to "Operational impact is small" patented technology

The invention discloses a full-set dismantling and installing construction method of a bridge overpassing an existing line. Full-set dismantling and installing construction is conducted on a plurality of beam segments needing to be dismantled of a used beam to be dismantled from front to back. The full-set dismantling and installing construction method comprises the steps that firstly, a pavement layer of the bridge surface is milled; secondly, roof-propping is conducted on the beam segments; thirdly, preparatory work is conducted before hoisting; fourthly, hoisting and moving-out are conducted; fifthly, one beam segment is installed after replacement; sixthly, full-set dismantling and installing construction of the next beam segment is conducted, specifically, full-set dismantling and installing construction is conducted on the next beam segment needing to be dismantled of the used beam to be dismantled according to the first step to the fifth step of the method; and seventhly, the sixth step is repeated once or more than once till full-set dismantling and installing construction of all the beam segments needing to the dismantled in the used beam to be dismantled is completed. The method is simple in step, reasonable in design, easy and convenient to implement and good in using effect, full-set dismantling and installing construction of the bridge overpassing the existing line can be completed easily, conveniently and rapidly, the construction process is safe and reliable, the construction period is short, and the method is economical and practical.

The invention discloses a subway platform reinforcing construction method; a reinforcing device comprises a first damping pad (2), an upper adjusting member (3), a lower adjusting member (4), and a support pedestal (5); the features are that the first damping pad (2) is arranged between a platform plate (1) and the upper adjusting member (3); the upper adjusting member (3) is fixed on the platform plate (1) through expansion bolts; the upper and lower adjusting members (3,4) are connected through adjusting bolts; the lower adjusting member (4) is connected with the support pedestal (5) through bolts; the support pedestal (5) is fixed on the ground foundation through expansion bolts. According to the method, the pre-tightening force between the reinforcing device and the platform plate is adjusted through the structure of the reinforcing device. The reinforcing device is simple in design, convenient in construction, low in reconstruction cost, short in construction period, thus having small influence on subway operation.

The invention discloses a two-way adjusting device for the deformation of the subgrade bed of a ballastless track high-speed railway, a method for using it and a construction method. The lower end of the flower tube is located at the bottom of the bed, the grouting port of the flower tube is detachably connected with a sealing cover, and a displacement sensor is also arranged in the bed. The device can be used to perform pressure grouting through the pre-embedded flower pipes, which can improve the settlement deformation, and can reduce the deformation of the upper arch through the pressure relief holes formed by pulling out the pre-embedded flower pipes from the foundation bed, effectively saving the subgrade settlement in the later stage Or the remediation and maintenance costs of arching, reduce the operation risk caused by the deformation of the subgrade, so as to effectively ensure the smoothness, stability and safety of the line operation, and adjust the deformation during the operation period, the construction is convenient, the interference to the high-speed rail operation is small, and it is widely used It is applicable to various types of subgrades and has great promotional significance.

The invention discloses a construction method of jacking a box body under a hump line. The construction method comprises the following steps of prefabricating a retaining wall on the top surface of the box body, then jacking the box body according to the traditional method, then connecting the prefabricated retaining wall and an original rubble retaining wall into a whole, and conducting the construction; or prefabricating retaining wall precast blocks, and then jacking the box body according to the traditional method, then connecting the retaining wall precast blocks with the pre-buried steel bars on the top surface of the box body, and finally connecting the two ends of the retaining wall precast blocks with the original rubble retaining wall into a whole and conducting the construction. According to the construction method of jacking the box body under the hump line, time needed for the construction is short, thus the impact on the operation of the railway is reduced to the minimum; and the prefabricated retaining wall can be connected with the original rubble retaining wall into a whole quickly, so that the phenomenon that the retaining wall expands outwards due to vehicle slipping is ensured not to happen. In addition, the construction method is reasonable in design, low in construction cost and good in effect.

The invention discloses a quick-beam change construction method for an existing railway line of a railroad. The method comprises the following steps: first building a beam change construction bracket platform at the original place below an old beam, and then arranging a slideway system on the bracket platform; then, mounting a temporary support cushion on the outer side of an old beam support; afterwards, removing barriers for beam moving, and moving the new beam onto the slideway system outside the old beam; mounting a temporary support at the bottom of the new beam; lifting a seamless long steel rail in a blocking point, synchronously and transversally moving the new and the old beam so as to move the new beam to the original place of the old beam, fixing the temporary support on the temporary support cushion, and placing the seamless long steel rail down on the new beam for fastening, so as to restore traffic; finally, after the mounting of a permanent support, dismantling the temporary support at the skylight point, so as to allow the permanent support to be stressed. The method can realize the beam change of the existing railway line of the railroad, ensures beam change construction safety, is short in key point time, reduces the influence on the normal operation of the railroad to the utmost, and feasibly and effectively reduces the construction risk.

The present invention proposes a short message transmission method, device, and system. The method includes: receiving a short message sent by a first user equipment UE to a second UE; when the second UE is an IMS user, transmitting the short message Send the short message to SMS-GW; if the second UE is a CS domain user, send the short message to the second UE. Through the scheme of the present invention, the short message center only needs to complete the identification and forwarding of the type of the called user, and the delivery, retry, and storage of the IMS user are still completed by the SMS-GW, and there is no need to carry out a large Retrofitting only needs to add a user type identification function and the function of forwarding short messages to SMS-GW, which has little impact on the operation of the existing network, and provides a feasible transition solution for the development of IMS bearer short message services, reducing Implement risks to ensure a smooth transition to converged messaging applications in the future.