CN102493370A

CN102493370A - Arch-bridge arch type railway and highway protective covers

Info

Publication number: CN102493370A
Application number: CN201110412295XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-13
Filing date: 2011-12-13
Publication date: 2012-06-13

Abstract

Provided are arch-bridge arch type railway and highway protective covers having reinforced concrete structures and a construction method. The construction method comprises the steps of 1 constructing the arch-bridge arch type protective covers with the reinforced concrete structures in railroad sections and road sections where disasters and dangerous cases frequently occur, 2 confirming strength, span and bridge floor gradient according to types and properties of disaster prevention, 3 piling up sands and sandy soil on the outer sides of arches for resisting sand storm and force wave, wherein the gradient is smaller than 30%., 4 constructing the arches for resisting quicksand and accumulated snow, 5 constructing arch bridges for resisting falling soil and broken rocks due to mountain torrents, detritus stream and landslide, wherein the gradient of the arch-top upper slope bridge floors is larger than 10%., and the gradient of the arch-top lower slope bridge floors is larger than 45%., 6 constructing embankments on each arch-bridge bridge floor extending to two sides along the disasters, 7 embedding the ends of the arch-bridge arches into the stratum for a certain depth so as to reinforce the whole, and 8 reserving spaces for the arch-bridge arches and the bridge floors to fill the sandy soil and broken stones so as to reduce damage of bridge floor shake to the arches.

Description

Arch bridge arch hole formula Rail Highway protective cover

Technical field

The mitigation field is taken precautions against natural calamities, combated a natural disaster to the Rail Highway that the present invention relates to often to take place major natural disasters such as sandstorm, power wave, drift sand, accumulated snow, mud-rock flow, landslide and dangerous situation.

Background technology

To above-mentioned natural calamity, all there are not effective safeguard procedures at present both at home and abroad.

Summary of the invention

Construct arch bridge arch hole formula reinforced concrete structure Rail Highway protective cover, resist above-mentioned natural calamity.

Technical scheme

Through constructing arch bridge arch hole formula protective cover, make above-mentioned natural calamity receive the arch hole and block and stop or flow through through the arch bridge bridge floor is smooth and easy, thereby avoid Rail Highway and passing train, vehicle are caused damage.

The specific embodiment

1,, constructs reinforced concrete structure arch bridge arch hole formula protective cover in disaster, dangerous situation take place frequently railroad section, highway section;

2,, confirm its intensity, span and the bridge floor gradient according to disaster prevention kind character;

3, survey should be piled up sandstone soil outside the arch hole of desertification dust storm, power wave, and the gradient should be less than 30 ‰;

4, anti-current sand, accumulated snow can only be constructed Gong Dong;

5, the arch bridge of the broken native stone that falls of anti-mountain torrents, mud-rock flow, landslide, the vault upward slope bridge floor gradient should be greater than 10 ‰, and the vault descending bridge floor gradient should be greater than 45 ‰;

6, the arch bridge bridge floor flows to two surveys along above-mentioned disaster, should construct bulwark;

7, each end of arch bridge arch hole should embed the stratum certain depth, with reinforcement unitarity;

8, arch bridge arch hole and bridge floor should leave the space, and do sandy soil, rubble filling, to reduce the infringement of bridge floor vibrations to the bridge opening.

Claims

1. the inventor is encircleed hole formula Rail Highway protective cover to the reinforced concrete structure arch bridge and is constructed; The independent power requirement is proposed; It is characterized in that blocking and stop or dredge the broken native stone that falls of sandstorm, power wave, drift sand, accumulated snow, mountain torrents, mud-rock flow, landslide, may further comprise the steps with arch bridge arch hole:

1. in disaster, dangerous situation take place frequently railroad section, highway section, construct reinforced concrete structure arch bridge arch hole formula protective cover;

2. according to disaster prevention kind character, confirm its intensity, span and the bridge floor gradient;

3. survey should be piled up sandstone soil outside the arch hole of desertification dust storm, power wave, and the gradient should be less than 30 ‰;

4. anti-current sand, accumulated snow can only be constructed Gong Dong;

5. the arch bridge of the broken native stone that falls of anti-mountain torrents, mud-rock flow, landslide, the vault upward slope bridge floor gradient should be greater than 10 ‰, and the vault descending bridge floor gradient should be greater than 45 ‰;

6. the arch bridge bridge floor flows to two surveys along above-mentioned disaster, should construct bulwark;

7. each end of arch bridge arch hole should embed the stratum certain depth, with reinforcement unitarity;

8. arch bridge arch hole and bridge floor should leave the space, and do few soil, rubble filling, to reduce the infringement of bridge floor vibrations to the bridge opening.