CN201176568Y

CN201176568Y - Sand guiding wall for railway line in

Info

Publication number: CN201176568Y
Application number: CNU2008200619083U
Authority: CN
Inventors: 梁欣悦; 梁德富
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-21
Filing date: 2008-01-21
Publication date: 2009-01-07
Anticipated expiration: 2018-01-21

Abstract

The utility model relates to a desert railroad sand guiding wall, wherein a steel upright post is arranged on the ground on one upwind side of a railroad foundation, which is 2m far from a railroad rail, a steel wind screen is fixed on the upwind side of the upright post, the wind screen is composed an upper steel plate and a lower steel plate which form an included angle of 135 degrees and are welded, the wind screen is convex to the upwind side, the distance between the lower edge of the wind screen and the ground is two fifths of the wall height, the upper edge is corresponding with the height of the top of a train, and the width ratio between the upper part and the lower part of the wind screen is 1:1. The sand guiding wall of the utility model transforms the function of a wind baffling wall from pure blocking to guiding, thereby the sand guiding wall not only can baffle wind, but also can prevent sand and stones from embedding the railroad, and more importantly the construction cost of the wind baffling wall can be greatly lowered.

Description

Desert railway line sand-guiding wall

Technical field

The utility model relates to the safety of railway traffic technology, and particularly a kind of dust storm that prevents is to railway and technology that train is destroyed.

Background technology

The railway line of desert area, the railway line that is in desert area that particularly Chinese Xinjiang is domestic, annual under the effect of monsoon, fierce dust storm not only causes railway line to be buried, also time and again the train glass for vehicle window is destroyed totally, even also train is blown over, cause serious life and property loss.At this problem, railway interests's downline has been built windbreak, although the cost of this windbreak up to every kilometer ten million yuan, effect is but and not as people's will.

The utility model content

The purpose of this utility model provides a kind of desert railway line sand-guiding wall, preventing the infringement of dust storm to railway line and train, and reduces the construction cost of windbreak significantly.

The purpose of this utility model is achieved in that at the railway location that has destructive dust storm, one side of facining the wind in railway line, build windbreak apart from rail 2m place, the support post of windbreak is external diameter 180mm, the seamless steel pipe of internal diameter 160mm, the height on column summit is consistent with the height on the summit of passenger train, the under ground portion of column is fixed with steel concrete, the center distance of two adjacent upright is 1.5m, the wall covering of windbreak is the thick steel plate of 5mm, the metope steel plate is by last, following two parts are welded, protrude to windward side, on, the inboard angle of following two parts steel plate is 135 degree, and the upper edge of top steel plate is fixed on the column upper end, the lower edge of bottom steel plate and the distance on ground are 2/5 of column height above ground level, on the steel plate, the ratio of two-part width is 1: 1 down.

Adopt such scheme, can receive following remarkable result:

Known railway windbreak, the dominant ideas of its structure design are stifled, and the dominant ideas of this programme are to lead, because the essential distinction on the dominant ideas, so also there is difference in essence on the structure of being reflected in and the effect:,, do not blown down in order to block high wind so it is in the maximum value state to the resistance of wind because the former structure is dull and stereotyped sealed from ground to the top, so the requirement of strength to the ground of wall stud and under ground portion is all very high, this must increase construction cost; Because metope is the integral sealing formula, so the consumption of metope steel plate also reaches maximum value, this also can increase and is built into cost; Because the former faces wall directly, so carry secretly after the blast of sandstone crosses wall top, inevitable on the wall top the inboard vortex that forms, cause a large amount of sandstones to fall between roof and car and the windbreak, the train roof must be higher than so face the height of windbreak directly, but still the vortex phenomenon can not be eliminated.The metope of this programme the projection width of vertical direction not enough the former 3/5, so just can correspondingly reduce the requirement of strength of wall stud, this must reduce cost; Though there is an angle in the metope of this programme, even it is launched, also not as good as the width of facing wall directly, this will reduce the consumption of metope steel plate to its width; Because lower steel plate is mutually 135 degree angles on the metope, metope steel plate and column then constitute a triangle, and the metope flexural strength is improved, and therefore under the prerequisite that satisfies essential flexural strength, can reduce the thickness of steel plate, and this has reduced cost from another point of view.Because metope is the inclined-plane, so the blast of blowing at metope will change original direction, wind-force is respectively along last, lower inclined plane is obliquely with oblique following, after the horizontal wind-force of wind-force under wherein oblique and body of wall bottom neutral gear is synthetic, the long-pending husky cleaning wind-force of one stronger cleaning roadbed will be formed, under its effect, not only the sandstone of carrying secretly in the wind can not stop at roadbed, pile up, even artificially also can be clean by cleaning at roadbed heap sand, this has solved the problem that sand dust is buried roadbed with regard to thorough, though the wind-force of body of wall below neutral gear is stronger, but because the position of synthetic wind-force is low, direction be oblique down, simultaneously since its moment of overturning train much smaller than the top, so the wind-force of windbreak bottom can not threaten to train.Along metope wind-force obliquely and the horizontal wind-force that crosses wall top synthetic after, not only eliminated the inboard vortex in wall top, can also raise the public attention of crossing the wall top, this blast of just having avoided crossing the wall top is lost in sandstone between roof and wall and the roadbed.

Description of drawings

Fig. 1 is the structure chart of desert railway line sand-guiding wall.

1 column among the figure, 2 verge boards

The specific embodiment

At the railway location that has destructive dust storm, one side of facining the wind in railway line, build windbreak apart from rail 2m place, the support post 1 of windbreak is external diameter 180mm, the seamless steel pipe of internal diameter 160mm, the height on column 1 summit is consistent with the height on the summit of passenger train, the under ground portion of column 1 is fixed with steel concrete, the center distance of two adjacent upright is 1.5m, the wall covering of windbreak is the thick steel plate of 5mm, the metope steel plate is by last, following two parts are welded, protrude to windward side, on, the inboard angle of following two parts steel plate is 135 degree, and the upper edge of top steel plate is fixed on column 1 upper end, the lower edge of bottom steel plate and the distance on ground are 2/5 of column 1 height above ground level, on the steel plate, the ratio of two-part width is 1: 1 down.

Claims

1, a kind of desert railway line sand-guiding wall, constitute by principal post and verge board, it is characterized in that: at the railway location that has destructive dust storm, one side of facining the wind in railway line, build windbreak apart from rail 2m place, the support post of windbreak is external diameter 180mm, the seamless steel pipe of internal diameter 160mm, the height on column summit is consistent with the height on the summit of passenger train, the under ground portion of column is fixed by steel concrete, and the center distance of two adjacent upright is 1.5m, and the wall covering of windbreak is the thick steel plate of 5mm, the metope steel plate is by last, following two parts are welded, protrude to windward side, on, the inboard angle of following two parts steel plate is 135 degree, and the upper edge of top steel plate is fixed on the column upper end, the lower edge of bottom steel plate and the distance on ground are 2/5 of column height above ground level, on the steel plate, the ratio of two-part width is 1: 1 down.