• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The artificial barrier (1) for a linear work object of the invention comprises a foundation (2), a vertical section (3) and a crown (4). The foundation (2) of the barrier (1) object of the invention is used to provide stability to said barrier (1) when it is installed next to the linear work; the vertical section (3) is the part of the barrier (1) that retains the sand when it moves by creep and is a vertical facing; and the crown (4) comprises a symmetrical aerodynamic profile (6) with a geometry based on a geometry of an aerodynamic profile of an aircraft wing (7) that modifies the amount of movement of the air current that impinges on the barrier and it makes the sand in suspension, when it falls, not fall on the linear work, but outside of it. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2656766A1
    申请号:ES201631121
    申请日:2016-08-24
    公开日:2018-02-28
    发明作者:José ÁLVAREZ DÍAZ；Javier DÁVILA MARTÍN；Miguel PÉREZ-SABORID SÁNCHEZ-PASTOR
    申请人:Universidad de Sevilla；Obrascon Huarte Lain SA；
    IPC主号:
    专利说明:

    DESCRIPTION

    Artificial barrier for linear work.

    Object of the invention 5
    The present invention relates to an artificial barrier for a linear work, which has mainly been developed to avoid interference between a linear work and the sand of for example a desert that suffers displacements, which would otherwise end up burying the work linear affecting its normal operation.
     10
    Technical problem to solve and background of the invention
    Everyone knows that in large areas of sand such as deserts and beaches, the sand travels great distances and in its displacement is covering everything in its path.
     fifteen
    There are two modes of transport of sand that are independent and can add, or not, their effects, a first mode of transport that is the re-creation of the sand and a second mode of transport that is the dragging of the sand in suspension.

    The sand's repetition consists of the movement of the particles giving a series of 20 jumps and rolling in turn. In this process a grain that advances by jumping and rolling, can in turn hit other grains, driving these in turn to the same process. In addition, it can also hit other heavier elements that, due to their weight, are not able to jump, but which are favored by the collision of other smaller particles that advance in the direction of the current, collide with them and favor their forward mobilization. by dragging along the stream.

    For this first mode of sand transport to occur, the force exerted by the friction of the wind against the sand particle must be sufficient. Thus, the most important variables for the development of this mode of displacement are the weight of the 30 particles and the speed of friction. There is a minimum threshold below which, and depending on among the other parameters above, the particles do not even get to move. The wind speed develops an approximately parabolic curve from the ground with the height.
     35
    The advance system of the dunes in the desert is produced due to the re-creation of the sand, as follows:
    - the particles move forward crawling upstream of the dune accumulating in their movement,
    - at the moment when the angle of natural friction of the sand (“ф”) 5 on the downstream face is exceeded, a “collapse” of the sand occurs and the dune advances due to successive sand collapses .

    The second mode of transport of the sand is the drag in suspension of this one. It only represents approximately 5% of sand transport. It occurs when the wind speed exceeds a certain threshold and the air currents are able to support the weight of the sand particles and keep said particles in suspension.

    It is also known that a linear work is an obstacle for any element that wishes to cross it, since the lines of the linear works cut channels and steps of 15 animals that it is necessary to maintain to preserve the original configuration of said channels and not interfere with the animals. For this, cross-sections for water, crossings for other facilities or infrastructures and even special steps for wildlife are made.

    However, it is not as usual to construct a linear work in an environment as aggressive as the environment that occurs when there is sand transport, for example in a desert. In addition, if a linear work has an intensive use, the sand that is deposited on the linear work is moved by the vehicles that circulate through said linear work, but it can accumulate on the road in a time slot in which vehicles do not circulate causing a problematic point for the circulation of vehicles. 25

    Therefore, when maintaining a linear work in an environment where sand transport occurs, which affects the linear work, it is necessary to develop some type of device / element that prevents the sand from reaching the linear work or , failing that, that the conditions to it by the sand are as small as possible. 30

    Regarding the documents known in the state of the art, the applicant is aware of document ES 2 341 211 B1 which discloses a protective barrier of blizzards, to be installed near communication routes in order to avoid the accumulation of snow or sand in the track, the barrier is constituted by the union of several screens formed by a set of slats that will be placed horizontally, superimposed on each other to
    regular distances, linked with vertical posts by anchoring their ends to rectangular plates that are inserted into the vertical post by a ring that presents the plate.

    In addition, the applicant is aware of document CN 105 200 930 A which discloses a barrier of acoustic protection with a curved upper shape that has a lower structure for fixing the upper structure in a curved shape, which has a noise absorbing element in its interior.

    The applicant also knows the document CN 204 401 486 U discloses a device to avoid the wind dragging sand, specifically a barrier formed by modules located in parallel, which are partially buried in the sand, each module has a column for clamping of the modules, a baffle and a sheet.

    The applicant also knows document CN 201 176 568 U which discloses a barrier to protect a railway track comprising a post fixed 2 meters from the track with a metal screen at the top end of the post, said metal screen being formed by a upper plate and a lower plate forming 135 degrees between them. The barrier disclosed by CN 201 176 568 U establishes dimensions of the barrier in relation to the height of the train. twenty

    Description of the invention
    The invention described discloses an artificial barrier for linear work comprising a vertical section and a coronation, where the vertical section is a vertical wall that joins the coronation with the ground, and the coronation comprises an aerodynamic profile with a geometry based on that of an aerodynamic profile of an airplane wing.

    The aerodynamic profile of the coronation comprises a leading edge at each end of said aerodynamic profile.
     30
    In the preferred embodiment of the invention the aerodynamic profile of the coronation is symmetrical with respect to a central section, so that it has an appropriate behavior for the incidence of wind in two opposite directions.

    The aerodynamic profile of the coronation of the barrier object of the invention is defined by the parameters:
    - Z is the middle line of the profile,
    - T is the thickness,
    - Zsup is the upper bound, and
    - Zinf is the lower bound.
     5
    The above parameters that define the geometry of the aerodynamic profile of the coronation of the barrier object of the invention are a function of the distance to the leading edge to the middle section. Specifically, the parameters used in the aerodynamic profile of the coronation have been obtained using the following equations:
    -; 10
    -;
    -;
    -.

    being: 15
    - x: distance from a leading edge of the aerodynamic profile to the middle section,
    - c: string of the aerodynamic profile of the wing of an airplane,
    - a: first dimensionless parameter, related to the curvature of the midline, 20
    - b: second dimensionless parameter, related to the slope of the midline at the leading edge, and
    - t: third dimensionless parameter, related to its relative thickness

    The following 25 parameter values are used to define the aerodynamic profile of the artificial barrier for linear work:
    - c = 1.3 meters,
    - 0.2 <a <0.6;
    - 0.7 <b <1.3
    - 0.12 <t <0.24 30

    In an embodiment of the artificial barrier for linear work object of the invention, the barrier comprises a foundation to increase the stability of the barrier.

    In an embodiment of the artificial barrier for linear work object of the invention the vertical section and the coronation are independent parts.

    Description of figures 5
    In order to complete the description and in order to help a better understanding of the features of the invention, this descriptive report is attached, as an integral part thereof, a set of drawings where, for illustrative and non-limiting purposes, it has been represented the next:
     10
    Figure 1 is a sectional view of the aerodynamic profile of the crowning of the barrier for linear work object of the invention.

    Figure 2 is a perspective view of the barrier for linear work object of the invention.
     fifteen
    Figure 3 shows a sectional view of the aerodynamic profile of the wing of an aircraft from which the aerodynamic profile of the coronation of the barrier object of the invention is obtained.

    Figure 4 shows a section of a linear work with barriers such as those of the invention on both sides of the linear work.

    Figure 5 shows a schematic view of the wind condition by the barrier object of the invention.
     25
    Preferred Embodiment of the Invention

    The different references that are reflected in the figures correspond to the following elements:
    1.- barrier; 30
    2.- foundation;
    3.- vertical section;
    4.- coronation;
    5.- middle section;
    6.- aerodynamic profile of the coronation; 35
    7.- aerodynamic profile of a wing of an airplane;
    8.- leading edge;
    T.- thickness;
    Z.- midline;
    c.- string of the aerodynamic profile of a wing of an airplane;
    Zsup.- upper level of the profile; 5
    Zinf.- lower level of the profile.



    For reasons of clarity, both edges of the aerodynamic profile have been named as 10 "leading edges". However, any average expert in the field knows that the leading edge is the one where the wind strikes and "trailing edge" where the wind leaves the aerodynamic profile, depending on the direction of the wind.

    As already indicated, and as can be seen in the figures, the object of the invention is an artificial barrier (1) for a linear work which, due to its geometric configuration, reduces the effect of the sand on the linear work, both because of the displacement due to the repetition of the sand and the displacement in suspension.

    The artificial barrier (1), in the preferred embodiment of the invention, comprises a foundation (2), a vertical section (3) and a coronation (4). The foundation (2) of the barrier (1) object of the invention is used to provide stability to said barrier (1) when it is installed next to the linear work; the vertical section (3) is the part of the barrier (1) that retains the sand when it is displaced by creeping and is a vertical facing; and the coronation (4) is an aerodynamic element with a profile such that it modifies the air velocity when it affects the said coronation (4) and causes the sand in suspension, when it falls, does not fall on the linear work, but outside of the same (see figure 5 where the profile of the air is seen affecting the barrier (1)).

    The foundation (2) of the barrier (1), in the preferred embodiment of the invention, is a shoe that protrudes on both sides of the vertical section (3), however, it can protrude only on one side, or have a foundation other than the shoe, since the purpose of the foundation is simply to provide support for the barrier (1) that provides stability in its operation, since the barrier (1) object of the invention is designed to be located in areas where the air has a strong impact, and the foundation must prevent the barrier (1) from tipping over. Even, in an extreme case, the barrier (1) object of the invention
    it can dispense with the foundation (2) and be placed directly on the ground, in this case it is necessary to have a vertical section fastening system (3) to prevent the barrier (1) from tipping over.

    The coronation (4) of the barrier (1) object of the invention, comprises a geometry based on an aerodynamic profile (6) similar to that used in the wings of the aircraft. The aerodynamic profile (6) of the coronation (4) is obtained from an aerodynamic profile of a wing that has been modified to have an appropriate behavior for the incidence of wind in two opposite directions, since the aerodynamic profile of a A plane's wing does not need it because it should only take advantage of the incidence of wind in one direction. 10

    In the preferred embodiment of the invention, the coronation (4) of the barrier (1) object of the invention is a symmetrical profile with respect to the middle section (5) having a leading edge (8) on each side of the middle section (5) symmetrically, and has dimensions of length 1 meter and maximum thickness (Tmax) of 0.18 meters. fifteen

    The geometry of the aerodynamic profile (6) of the coronation (4) is defined with the following elements:
    - middle line (Z),
    - thickness (T), 20
    - upper bound (Zsup),
    - lower bound (Zinf).

    The above parameters that define the geometry of the aerodynamic profile of the coronation of the barrier object of the invention are a function of the distance to the leading edge. 25

    In the aerodynamic profile (6) of the coronation (4), the midline (Z) is obtained by the equation:

     30

    Also in the aerodynamic profile (6) of the coronation (4), the thickness (T) is obtained by the equation:



    The upper bound (Zsup) of the aerodynamic profile (6) used in the coronation (4) is given by the equation:
     5


    The lower bound (Zinf) of the aerodynamic profile (6) used in the coronation (4) is given by the equation:
     10


    In the previous equations:
    - x is the distance from the leading edge (8) of the coronation to the middle section (5), 15
    - c is the rope of the aerodynamic profile of the wing of an airplane (7) from which it is started to define the aerodynamic profile (6) of the coronation (4),
    - a is a first dimensionless parameter, related to the curvature of the midline (Z),
    - b is a second dimensionless parameter, related to the slope of the middle line (Z) at the leading edge (8), and
    - t is a third dimensionless parameter, which is the relationship between the maximum thickness (Tmax) and the rope (c) of the profile.

    The rope "c" of an aerodynamic profile of a wing of an airplane (7) is the imaginary straight line 25 that joins the trailing edge with the center of the curvature of the leading edge (8) in the aerodynamic profile of the wing of an airplane (7) (see figure 3). In the case of the aerodynamic profile (6) of the coronation (4) of the barrier object of the invention, the value of the rope "c" is the value of the rope of the aerodynamic profile of a wing of an airplane (7) of the which is split to obtain the aerodynamic profile (6) of the coronation (4) of the barrier object of the invention. Therefore, the value of the “c” string used in the formulas above is 1.3 meters.

    Although the value of the rope “c” used in the formulas is 1.3 meters, the value of the total length of the aerodynamic profile (6) of the coronation (4) is 1 meter, this is because by numerical simulations of fluid dynamics performed with a program 35
    From the computer it has been determined that the aerodynamic profile (6) is effective with the length of 1 meter and the construction of said aerodynamic profile (6) is simpler and of lower cost with respect to a longer profile.

    The first dimensionless parameter "a" is related to the curvature of the midline, 5 this is the higher the value of the first dimensionless parameter "a" the profile would have greater curvature.

    The second parameter "b" is related to the slope of the midline at the leading edge (8), this is the higher the value of the second parameter "b" the profile would have greater slope at the ends.

    Both the value of the first parameter "a" and the value of the second parameter "b" used in the aerodynamic profile (6) of the coronation (4) come from numerical simulations of fluid dynamics performed with a computer program. fifteen

    In the preferred embodiment of the aerodynamic profile (6) of the coronation (4) of the barrier object of the invention, the values of the dimensionless parameters used are:
    - a = 0.4;
    - b = 1; twenty
    - t = 0.18.

    With these parameter values it is possible to optimize the modification of the amount of movement of the incident air stream over the barrier (1), so that the jump of the suspended sand is such that it increases the probability that it will not deposit sand 25 on the linear work that you are trying to protect.

    In an aerodynamic profile (6) said modification of the amount of movement of the current that affects the barrier (1) is achieved by taking advantage of the differences in pressure between the intrados (where a backwater point is located in a position close to the leading edge (8)) and the extrados, so that the incident current overhangs the leading edge (8) and leaves the aerodynamic profile (6) with the appropriate direction and magnitude of the amount of movement.

    The invention should not be limited to the embodiments described in this document. Experts in the field can develop other embodiments in view of the
    description made here. Accordingly, the scope of the invention is defined by the following claims.
    权利要求:
    Claims (7)
    [1]

    1.- Artificial barrier (1) for linear work, comprising a vertical section (3) and a coronation (4), characterized in that 5
    - the vertical section (3) is a vertical wall that joins the coronation (4) with the ground,
    - the coronation (4) comprises an aerodynamic profile (6) with a geometry based on a geometry of an aerodynamic profile of a wing of an airplane (7),
    where the aerodynamic profile (6) comprises a leading edge (8) at each end. 10

    [2]
    2. Artificial barrier (1) for linear work, comprising a vertical section (3) and a coronation (4), according to claim 1 characterized in that the aerodynamic profile (6) is symmetrical with respect to a central section (5)
     fifteen
    [3]
    3. Artificial barrier (1) for linear work according to the preceding claims, characterized in that the aerodynamic profile (6) is defined by the parameters:
    - Z is the midline of the aerodynamic profile (6),
    - T is the thickness of the aerodynamic profile (6),
    - Zsup is the upper bound of the aerodynamic profile (6), and 20
    - Zinf is the lower elevation of the aerodynamic profile (6);
    These parameters have been obtained using the following equations:
    -;
    -; 25
    -;
    [- ]
    -.
    being:
    - x: distance from a leading edge (8) of the aerodynamic profile (6) to the middle section 30 (5),
    - c: string of the aerodynamic profile of the wing of an airplane (7),
    - a: first dimensionless parameter, related to the curvature of the midline,
    - b: second dimensionless parameter, related to the slope of the midline at the leading edge (8), and
    - t: third dimensionless parameter.

    [4]
    4. Artificial barrier (1) for linear work according to claim 3, characterized in that in 5 the definition of the aerodynamic profile (6) the following values are used:
    - c = 1.3 meters,
    - 0.2 <a <0.6;
    - 0.7 <b <1.3;
    - 0.12 <t <0.24. 10

    [5]
    5. Artificial barrier (1) for linear work according to the preceding claims, characterized in that it comprises a foundation (2).

    [6]
    6. Artificial barrier (1) for linear work according to the preceding claims, characterized in that the vertical section (3) and the coronation (4) are independent parts.
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2215219T3|2004-10-01|SAFETY BARRIER FOR HIGHWAY PRETIL.
    ES1060699U|2005-10-16|Metallic barrier with a continuous metallic protection system for motocyclists
    CN105178255B|2016-10-26|The pool segment length measuring method of ladder-pool type debris flow drainage groove
    KR20090129001A|2009-12-16|A bridge structure of floating type
    US7780148B2|2010-08-24|Vortex generating sand and snow fence
    US4741063A|1988-05-03|Suspension bridge structure with flutter damping means
    CN203795329U|2014-08-27|Flow guide type wind barrier
    ES2284131T3|2007-11-01|TRANSITION STRUCTURE
    ES2866973T3|2021-10-20|Building structure comprising a vortex generator to reduce induced vibrations
    KR102104814B1|2020-04-28|Transparent light weight cantilever wind barrier with pedestrian safety handrail and vehicle falling protection system of bridge
    ES2656766B1|2018-12-18|ARTIFICIAL BARRIER FOR LINEAR WORK
    US4015682A|1977-04-05|Protecting system for roadway adjacent areas
    CN102587301B|2014-12-24|Double-layer flexible windproof net
    CN103938559B|2016-02-24|Flow guiding type wind barrier
    Pugh et al.1954|Snow drifting and the use of snow fences
    KR20160092002A|2016-08-03|Guard fence
    CN106013227B|2019-01-25|Culvert structure, sand storm protection device and roadbed system
    US1541241A|1925-06-09|Snow fence
    ES2864875A1|2021-10-14|Breakwater. |
    KR100582022B1|2006-05-22|Shock absorbing device for median strip of driveway
    RU2430212C1|2011-09-27|Transfer screen
    CN209384104U|2019-09-13|A kind of corner cable saddle and the outer formula main push-towing rope cable bridge comprising corner cable saddle
    JP2020204217A|2020-12-24|Vehicle block wall
    JPH09143921A|1997-06-03|Wind resisting structure
    ES2596586B1|2017-10-18|Fog protection system on roads and railways
    同族专利:
    公开号 | 公开日
    ES2656766B1|2018-12-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    KR20050041599A|2003-10-31|2005-05-04|주식회사 건양기술공사 건축사사무소|Structure for blocking of road|
    CN201176568Y|2008-01-21|2009-01-07|梁欣悦|Sand guiding wall for railway line in|
    CN201459616U|2009-05-26|2010-05-12|山西汉德环境工程科技发展有限公司|Road sand barrier|
    CN103290791A|2013-05-13|2013-09-11|新疆交通科学研究院|Circular-arc wind deflector|
    法律状态:
    2018-12-18| FG2A| Definitive protection|Ref document number: 2656766 Country of ref document: ES Kind code of ref document: B1 Effective date: 20181218 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201631121A|ES2656766B1|2016-08-24|2016-08-24|ARTIFICIAL BARRIER FOR LINEAR WORK|ES201631121A| ES2656766B1|2016-08-24|2016-08-24|ARTIFICIAL BARRIER FOR LINEAR WORK|
    [返回顶部]