PERFORMANCE EVALUATION METHOD FOR SMOKE CONTROL FACILITY OF ROAD TUNNEL

Hereinafter, with reference to the attached drawing in the embodiment described the disclosure to dilate the specification, drawing code is independent components to impart the same reference number or similar local description dispensed the on-sensors other. In addition, the disclosure in the specification is described in the embodiment to publicly known techniques related to the subject matter of the disclosure specifically specification description is a description example embodiment uses the analogy if can be decided to be supplied from a substrate. In addition, the attached drawing is a specification for the disclosure in the embodiment to easily understand only, by the attached drawing specification disclosure to event number not one technical scheme, all changing range of idea and techniques of the present invention, including the water to replacement should understood to evenly.

First, acting within the tunnel type ventilation force by the barrier metals to you.

Figure 1 shows a ventilation force also acting within the tunnel for reference types are disclosed.

The reference also 1, Δ P_r , Δ P_t , Δ P_m , Δ P_j Can be identify. Said Δ P_r The ventilation resistance, Δ P_t Traffic annular vigor, Δ P_m Ventilation by natural wind force (or resistance), Δ P_j The number [thu[thu] fan boosting force among others. The, various ventilation force and velocity within the tunnel surfaces herein determined in equilibrium to be coated. Under same representing expressions such as disclosed.

1<expressions. 1>

Said ventilation resistance (Δ P_r ) And friction hand capability tunnel itself structure and environment according to means, the contents are as below.

1<expressions. 2>

Ξ: tunnel inlet loss coefficient

Λ: tunnel wall friction loss coefficient

L: tunnel extending (m)

D: diameter (m) representative tunnel

Ρ: air density (1. 2 kg/m3)

V_r : Wind speed (m/s) in tunnel

Said traffic annular vigor (Δ P_t ) Generated by the machines within the tunnel of a motor vehicle wind-i.e., according to which the contents of the cited under ventilation force piston effect (Piston Effect) means.

1<expressions. 3>

A_m : Vehicle equivalent resistance area (m² )

A_r : Tunnel cross-sectional area (m² )

n_t : Log vehicle within the tunnel (to)

V_t : Speed (m/s) in tunnel

Said natural wind (Δ P_m ) Tunnel ventilation force by wind blown in in big ventilation force. When natural air is fed out wind acting ventilation force but, when act and therefore resistance, the contents are as below.

1<expressions. 4>

V_n : In wind speed (m/s) (detects) induced by external natural wind tunnel

Said number [thu[thu] fan boosting force (P_j ) Is provided within the tunnel by machine annular vigor[thu[thu] in fan as number, the contents are as below.

1<expressions. 5>

n_j : Number [thu[thu] fan movable log

K_j : Number [thu[thu] fan boosting coefficient

A_j : Peripheral surface [thu[thu] fan number (m² )

V_j : Number [thu[thu] fan discharge wind speed (30 m/s)

Figure 2 shows a method for evaluating performance of a number of non-speech are also illustrated in the embodiment according to specification road tunnel simplifies flow are disclosed.

Hereinafter, a method for evaluating performance of a road tunnel specification according to number 2 also refers to the non-speech (hereinafter 'performance evaluation method') by the barrier metals to you.

First movable [thu[thu] fan number before, current and still within the tunnel wind speed (V₀ , V₁ , V₂ ) (Step S10) can be measuring. For illustrating the method cited in tunnel wind speed measurements of the two sequences.

Most of number the tunnel is straight [thu[thu] in fan etc. by types type cyclic method applied. The, most of a liquid flow in a tunnel 1 dimensional flow along a straight duct theory can be simplified. I.e., in the absence of inner cross-sectional area constant and higher change in tunnel outlet tunnel average customs point portion, central portion, such as a same end longitudinally at any point can be measured even. The installation of a representative average velocity measured wind speed meter in cross-section tunnel tunnel pointer if so, a certain point in time according to wind speed value can be measured continuously.

Figure 3 is one example velocity measuring method using a wind tunnel.

In tunnel measurements of average wind speed can be measured by use of a corrected in advance in tunnel wind speed meter. Wind speed detecting method using a number movable [thu[thu] fan before, current and still within the tunnel wind speed (V₀ , V₁ , V₂ ) Measuring substrate. 10 minutes - 20 minutes each said wind speed measuring process and measuring velocity can be calculated by calculating an average. Preferably, said wind speed measuring process can be measuring velocity 15 minutes. In addition preferably, said number [thu[thu] fan current wind speed (V₁ ) Performance test number [thu[thu] fan in measuring value and reaches a complete state, said number after the suspension [thu[thu] fan wind speed (V₂ ) Is, in the test piece in the halt condition number [thu[thu] fan reaches complete performance measured value. Said movable state which means that does not increase the wind by number [thu[thu] in fan complete section, said complete [thu[thu] in fan number was increased by pauses after that can be velocity deceleration of the graphics.

On the other hand, said wind speed measurement is in tunnel ventilation design reference vehicle depending on the flow of the air within the tunnel (road design handbook 617 ventilation facility piece) assume the following associated in combustion chamber.

- the body: friction resistance is good conductor of said according to exhibit certain charle - but not considering the loss of established gas is pressed. Special high pressure or a low temperature state is not on (μ) in grade independent of a rotating speed of the general atmosphere speed, temperature as a function of the invention such as home air gases emitting fluid (Newton).

- Incompressible gas: air density variation not incompressible his family was not taking into account, in applying a certain distance (air column) average density value to main air density.

The one-dimensional - flow: axial flow Reynolds (Reynolds) to turbulence and significantly greater number due to the color of the instantaneous mixing ventilation safety vertical axial i.e., safety direction by one-dimensional the planarized flow.

- quasi-stationary type flow (a quasi-studying the state flow): instantaneous wind speed axially and transversely substantially constant value is approximated with quasi stationary flow exhibit severe shift or time weighted average of the assumed flow by.

Next, measured number before said movable [thu[thu] fan wind speed (V₀ ) And measured after the suspension wind speed (V₂ ) (Step S20) can be screening using valid data.

The specification according to performance evaluation method before the movable [thu[thu] fan number, current and still great change of natural wind force applied based traffic etc. if not home. The, number average wind velocity measured before and still tunnel when the movable [thu[thu] fan data i.e., tunnels and wind speed (V₀ , V₁ , V₂ ) Whether the invalid data data, in the evaluation of the performance number etched out.

In the embodiment of according to the specification, said movable [thu[thu] fan measured number before wind speed (V₀ ) And measured after a given operating wind speed (V₂ ) Of size value of the difference exceeds a preset value or more, said measured in tunnel wind speed (V_0, V₁ , V₂ ) Outside that override data number can be disclosed. For example, movable [thu[thu] fan number before wind speed (V₀ ) After the suspension and wind speed (V₂ ) 1 m/s or more difference (V|₀ - V₂ |≥ 1), traffic force or/and great change of natural wind and to validate data in addition determines number can be disclosed.

The other according to specification in the embodiment, after a given operating pressure difference pressure value number number before movable [thu[thu] fan[thu[thu] fan (hereinafter 'pressure fluctuation value') is a preset value or more, said measured in tunnel wind speed (V_0, V₁ , V₂ ) Outside that override data number can be disclosed. For example, number 1 said pressure fluctuation value [thu[thu] fan soft wind boosting force (Δ P_j /N_j ) When, great change of natural wind and to validate data in addition number determines traffic force can be disclosed.

1 expressions. 5 to 1 per number using [thu[thu] fan boosting force (Δ P_j /N_j ) Is obtained under equations 1. 6 such as disclosed.

1<expressions. 6>

And, movable [thu[thu] fan number before wind speed (V₀ ) After the suspension and wind speed (V₂ ) Difference according to pressure fluctuation value is traffic annular vigor (Δ P_t ) annular vigor equipment (Δ P_m ) Of the target pressure fluctuations value by a generally downwardly facing surface equations 1. 7 representing such as can be.

1<expressions. 7>

The, Δ P_r ≥ Δ P_j Back, when the number average wind velocity movable [thu[thu] fan before and still tunnel to reporting, in the evaluation of the performance number etched out.

Next, said selected valid in tunnel wind speed (V₀ , V₁ , V₂ ) Ventilation using resistance (Δ P_r ), Traffic annular vigor (Δ P_t ), Natural annular vigor (Δ P_m ) And number [thu[thu] fan boosting force (Δ P_j ) Including a movable before pressure can be calculated (step S30) flat type and current pressure flat type. Said ventilation resistance (Δ P_r ), Traffic annular vigor (Δ P_t ), Natural annular vigor (Δ P_m ), Number [thu[thu] fan boosting force (Δ P_j ) And pressure flat type is represented by a mathematical equation 1. 1 to 1. 5 already described through since, repetitive description dispensed to each other.

Next, before said pressure flat type and a movable pressure flat type using [thu[thu] fan current number of movable theoretical wind speed (V_r^* ) Can be calculated. And said measured number [thu[thu] fan current wind speed (V₁ ) And said calculated number [thu[thu] fan current theoretical wind speed (V_r^* ) For evaluating performance using can be.

On the other hand, the specification according to performance evaluation method (step S40) when considering whether traffic annular vigor consideration (step S45, S50, S60) consider whether traffic annular vigorannular vigor communicates with the phosphate can be applied according to various performance evaluation method. First, the case where the 'follow' (step S71) is not considering the traffic annular vigor. Consider traffic annular vigor when V_t (Step S45) by using predetermined material. But considering traffic annular vigor, the natural annular vigor traffic with annular vigor case 'α type' (step S72) is. When there is a change with natural annular vigor traffic with annular vigor 'β' type are disclosed. Said 'β' may be redisplayed according to performance evaluation method, wind speed comparison legal entity 'β -1 type' (step S73), corresponding monk pressure comparison legal entity 'β -2 type' (step S74) and threshold wind speed in terms of legal entity 'β -3 type' can be divided into (step S75). Hereinafter sequentially in to heat the two sequences.

As follow><(if traffic annular vigor)

A flat type pressure within the tunnel<1 expressions. 2><to expressions 1. 4>simple can be represented as below.

(V_r : Wind speed (m/s) in tunnel, V_n : Natural wind resistance acting in tunnel (m/s))

The number before such as disclosed (of Figure 4 (a) reference) pressure balancing may include movable [thu[thu] fan below.

2<expressions. 1>

The number such as disclosed (of Figure 4 (b) reference) [thu[thu] fan current pressure flat type is arched.

2<expressions. 2>

2 expressions. 1 and 2 expressions. 2 [thu[thu] fan current number using theoretical wind speed (V_r^* ) Under derive such as disclosed.

2<expressions. 3>

And, per measured to boosting force (Δ P_{J (measured)} /N_j ) Under derive such as disclosed.

2<expressions. 4>

And, per theoretical to boosting force (Δ P_{J (theory)} /N_j ) Under derive such as disclosed.

2<expressions. 5>

The number [thu[thu] fan performance (Δ P_j(Measured) /N_j ) ≥ (Δ P_j(Theory) /N_j ) Back 'normal', (Δ P_j(Measured) /N_j ) < (Δ P_{J (theory)} /N_j ) Determination of each other (step S80) back 'fall'.

><Α type (natural annular vigor traffic with annular vigor case)

A flat type pressure within the tunnel<1 expressions. 2><to expressions 1. 4>simple can be represented as below.

(V_r : Wind speed (m/s) in tunnel, V_n : Natural wind resistance acting in tunnel (m/s))

The number such as disclosed ((c) of Figure 4 reference) below may include movable [thu[thu] fan before pressure equalization.

3<expressions. 1>

The number such as disclosed ((d) of Figure 4 reference) below may include [thu[thu] fan pressure balancing current.

3<expressions. 2>

3 expressions. 1 and 3 and expressions. 2 [thu[thu] fan current number using theoretical wind speed (V_r^* ) Under derive such as disclosed.

3<expressions. 3>

The number V [thu[thu] fan performance₁ ≥ V_r^* Back 'normal', V₁ V <_r^* Determination of the substrate (step S80) back 'fall'.

(Wind speed increased according to traffic annular vigor reduced when phase estimation)><β type

Chamber when fire number etc., are requested by considering effect can be reduced since the number of tunnel traffic annular vigor one needs to be described.

A flat type pressure within the tunnel<1 expressions. 2><to expressions 1. 4>simple can be represented as below.

(V_r : Wind speed (m/s) in tunnel, V_n : Natural wind resistance acting in tunnel (m/s))

The number such as disclosed ((c) of Figure 4 reference) below may include movable [thu[thu] fan before pressure equalization.

4<expressions. 1>

The number such as disclosed ((d) of Figure 4 reference) below may include [thu[thu] fan pressure balancing current.

4<expressions. 2>

Said β value is movable before wind speed change number [thu[thu] fan α value (V₀ →V₁ ) According to traffic annular vigor phosphate (dP_t ') Considering value. The, β=α - dP_t ' So that it can be deleted as follows.

4<expressions. 3>

The importance number in formula b can be calculated as follows before movable [thu[thu] fan pressure balancing

4<expressions. 4>

On the other hand, said expressions 4. 4 V in_n Know the value of the and a state of exhaustion. To this end the specification according to the performance evaluation method, chamber number V_n Value V in order to obtain temporary variables_n^* Establishing, through chamber number V result_n Can be obtain.

Figure 5 chamber number V_n Value for obtaining a flow result is also among others. With reference to fig. 5, with respect to said result is it relates to you.

First, a mathematical equation 4. 1 and 4. 2 V for adding_n Importance by natural wind V for external_n^* Can be derived.

4<expressions. 5>

V measured_t Value 4 expressions. 4 initial b b calculates a value. The, initial natural wind (V_n ) Is assumed value. Expressions 4 b value thus obtained. 5 b obtained by natural wind (V_n^* ) A 'convergence before natural wind' designated and referred to as, initial natural wind (V_n ) Compares interact with. According to the specification, chamber number natural wind (V_n ) Before which converges with the natural wind (V_n^* ) Of the values of the difference 0. 001 hereinafter when, calculated prior natural wind (V_n^* ) A 'convergence natural wind' year 2000. Converging said natural wind (V_n^* ) Mathematical type 4. 4 b values are derived expressions can be evaporated on the same 4. 3 β values calculated mixture ratio can be. The, number [thu[thu] fan in tunnel current is arched flat type final pressure such as disclosed.

4<expressions. 6>

As described above, performance evaluation method again according to, wind speed comparison legal entity 'β -1 type' (step S73), corresponding monk pressure comparison legal entity 'β -2 type' (step S74) and threshold wind speed in terms of legal entity 'β -3 type' can be divided into (step S75).

(Wind speed and compresses and)><β -1 type

The number V [thu[thu] fan performance₁ ≥ V_r^* Back 'normal', V₁ V <_r^* Determination of the substrate (step S80) back 'fall'.

(corresponding monk pressure comparison method)><β -2 type

Per measured to boosting force (Δ P_{J (measured)} /N_j ) Under derive such as disclosed.

5<expressions. 1>

Theory to per boosting force (Δ P_{J (theory)} /N_j ) Under derive such as disclosed.

5<expressions. 2>

The number [thu[thu] fan performance (Δ P_j(Measured) /N_j ) ≥ (Δ P_j(Theory) /N_j ) Back 'normal', (Δ P_j(Measured) /N_j ) < (Δ P_{J (theory)} /N_j ) Determination of each other (step S80) back 'fall'.

(Critical wind speed the change law)><β -3 type

Pressure balancing may include can be represented as below.

6<expressions. 1>

On the other hand, in terms of critical wind speed according to number [thu[thu] fan boosting force (Δ P_{J (in terms of vc)} ) Is [thu[thu] fan number after a given operating wind speed (V₁ ) Threshold wind speed (V_c ) For terms of coefficient K Δ P through_{J (measured)} Can be drawn through the combination.

6<expressions. 2>

And, number [thu[thu] fan theoretical threshold wind speed for boosting force (Δ P_{j(Vc theory)} ) Under deriving such as disclosed.

6<expressions. 3>

The number [thu[thu] fan performance (Δ P_{j(Measured vc)} ) ≥ (Δ P_{j(Vc theory)} ) Back 'normal', (Δ P_{j(Measured vc)} ) < (Δ P_{J (vc theory)} ) Determination of each other (step S80) back 'fall'.

The performance evaluation method in tunnel wind speed meter number from said movable [thu[thu] fan before, current measured tunnel of still images and multipliers (V₀ , V₁ , V₂ ) Value receiving wind speed measuring section; said movable [thu[thu] fan measured number before wind speed (V₀ ) And measured after the suspension wind speed (V₂ ) Selecting valid data using data selector unit; said selected valid in tunnel wind speed (V₀ , V₁ , V₂ ) Ventilation using resistance (Δ P_r ), Traffic annular vigor (Δ P_t ), Natural annular vigor (Δ P_m ) And number [thu[thu] fan boosting force (Δ P_j ) Including a movable pressure flat type and current pressure flat type for calculating pressure flat type calculation before; said movable pressure flat type and current pressure flat type using [thu[thu] fan current number before theoretical wind speed (V_r^* ) For calculating a theoretical wind speed calculating section; and said measured number [thu[thu] fan current wind speed (V₁ ) And said calculated number [thu[thu] fan current theoretical wind speed (V_r^* ) For evaluating performance using an evaluation section; characterized in including a tunnel through which the device for evaluating performance of a non-speech number (hereinafter 'performance evaluation device') can also be implemented disapproval.

In addition, said performance evaluation device is, performance evaluation device for measuring wind speed and wind tunnel of components including restricts a number within the tunnel system for evaluating performance of a non-speech can be.

On the other hand, said performance evaluation method implemented software operable when the one or more computer - readable storage medium executed can be.

Said storage medium having stored thereon machine-readable medium are disclosed. The term machine-readable medium, machine information is read physical mechanism to reading or writing information detected by said information related to a data medium of the type having a machine number under public affairs can be defined. Said storage medium is non-volatile media and volatile media comprising (a non-to prevent a leakage current media) (volatile media) can be. Said machine-readable medium includes, but not limited to, floppy disk (floppy disk), flexible disc drive (flexible disk), hard disk, magnetic tape, CD-ROM(compact disc a read-memory: cD BD-rOM), optical disk, punch card (punchcard), paper tape (papertape), ram, thin film transistor (Programmable read provided only Memory: PROM), EPROM (Erasable PROM: EPROM) comprising at least one of flash - EPROM (fLASH non-ePROM).

<Experiment example>

In hereinafter, chamber number data rates using the specification according to performance evaluation method to heat to you.

Experiment object tunnel under conditions such as disclosed.

Extending tunnel - (L_r )=1, 191m

- Tunnel cross-sectional area (A_r )=75. 47m²

Representative tunnel - diameter (D_r )=8. 609m

- Number [thu[thu] fan diameter (D_j )=1, 400mm

- Number [thu[thu] fan classification speed (V_j )=30m/s

- Average vehicle speed (V_t )=100km/hr=27. 778 m/s

- Number [thu[thu] fan log (n_j )=7ea

- Tunnel inlet loss coefficient (ξ)=0. 6

- Wall friction loss coefficient (λ)=0. 025

- Air density (ρ)=1. 2 kg/m³

Wind speed experiment corresponded are as below.

In tunnel movable [thu[thu] fan - number before wind speed (V₀ )=1. 72 m/s

In tunnel - number [thu[thu] fan current wind speed (V₁ )=5. 30 m/s

After the suspension [thu[thu] fan - number in tunnel wind speed (V₂ )=1. 75 m/s

Said when the data is judged whether the programs, are as below.

1 - method

V|₀ - V₂ |=|1. 72 - 1. 75|=0. 03 m/s, V|₀ - V₂ Since|≤ 1 valid data are disclosed.

2 - method

Δ P_r V=a|₀² - V₂² |=30. 35|1. 72² -1. 75² |=0. 316Pa, Δ P_j(Theory) /N_j =1. 686Pa,

Δ P_j(Theory) /N_j ≥ Δ P_r Since valid data are disclosed.

In tunnel under pressure flat type common derive factor such as disclosed.

First, basic shape (if traffic annular vigor) heat to you.

In tunnel current number [thu[thu] fan final pressure under said data variable data such as the flat type such as disclosed.

The, per measured to boosting force (Δ P_{J (measured)} /N_j ) Under derive such as disclosed.

The theory to per boosting force (Δ P_{J (theory)} /N_j ) Under derive such as disclosed.

Said value is used to evaluate performance under such as disclosed.

- Δ P_j(Measured) /N_j =18. 217Pa, Δ P_j(Theory) /N_j =16. 686Pa

- Δ P_j(Measured) /N_j ≥Δ P_j(Theory) /N_j Therefore, 'normal' can be determine.

Next, α type (natural annular vigor traffic with annular vigor case) heat to you.

Said value is used to evaluate performance under such as disclosed.

- V₁ ≥ V_r^* Therefore, 'normal' can be determine.

Next, β type (wind speed increased according to traffic annular vigor reduced when phase estimation) heat to you.

First, accomplishing b values are derived. The V_n Value 2. 5 m/s to assume first you.

B=3. 035 * (2. 5² + 1. 72² )/(27. 778 - 1. 72)² =0. 041

By external natural wind V_n^* The values are derived, are as below.

The, said derived V_n^* A converging heat value whether such substrate.

V|_n - V_n^* |=|2. 5 - 2. 481|=0. 019 ≥ 0. 001 (not by converging)

The, containing the first V_n =2. 5 m/s value than that of a well can be prevented. The, result converge toward a natural wind (V_n^* ) Value and b value top surface as follows.

V_n^* =-0. 728 m/s, b=0. 016

Said value is used under β values such as disclosed.

Finally number [thu[thu] fan in tunnel movable according to wind speed (V_r^* ) Under derive such as disclosed.

Said β may be redisplayed according to performance evaluation method, wind speed comparison legal entity 'β -1 type', corresponding monk pressure comparison legal entity 'β -2 type' and threshold wind speed in terms of legal entity 'β -3 type' is divided into, heat each you.

First, evaluates the β -1 type (wind speed and compresses and) are as below.

- V₁ ≥ V_r^* Therefore, 'normal' can be determine.

Next, evaluates the β -2 type (corresponding monk pressure comparison method) are as below.

Measured to per - boosting force (Δ P_j(Measured) /N_j )

Theory to per - boosting force (Δ P_j(Theory) /N_j )

The, Δ P_j(Measured) /N_j =18. 241Pa, Δ P_j(Theory) /N_j =16. 686Pa

- Δ P_j(Measured) /N_j ≥Δ P_j(Theory) /N_j Therefore, 'normal' can be determine.

Last, β -3 type (critical wind speed the change law) evaluates the are as below.

Measured to per - boosting force (Δ P_{j(In terms of Vc)} /N_j )

Theory to per - boosting force (Δ P_{j(Vc theory)} /N_j )

The, Δ P_{j(Vc measured)} /N_j =81. 995Pa, Δ P_{j(Vc theory)} /N_j =79. 965Pa

- Δ P_{j(Vc measured)} /N_j ≥Δ P_{j(Vc theory)} /N_j Therefore, 'normal' can be determine.

The specification is inputted said configurations from deviating from a specific other mental and essential characteristics are embodied in the form has the same to one skilled in the nontrivial disclosed. Said limited number in all detailed description is interpreted should have been taken into account in an exemplary WD. The appended claim rationally determined by analysis in a number of range of specification, the specification of all change is equivalent in the scope of the present invention range multiple myelomas are included.