CN104831679B - The rib sill spacing measuring method of soft base energy dissipation type debris flow drainage groove and application - Google Patents

The rib sill spacing measuring method of soft base energy dissipation type debris flow drainage groove and application Download PDF

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Publication number
CN104831679B
CN104831679B CN201510247582.8A CN201510247582A CN104831679B CN 104831679 B CN104831679 B CN 104831679B CN 201510247582 A CN201510247582 A CN 201510247582A CN 104831679 B CN104831679 B CN 104831679B
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China
Prior art keywords
drainage groove
rib sill
debris flow
spacing
energy dissipation
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Expired - Fee Related
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CN104831679A (en
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柳金峰
刘曙亮
姚裕春
张广泽
游勇
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Institute of Mountain Hazards and Environment IMHE of CAS
China Railway Eryuan Engineering Group Co Ltd CREEC
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Institute of Mountain Hazards and Environment IMHE of CAS
China Railway Eryuan Engineering Group Co Ltd CREEC
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Z—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR
    • G16Z99/00—Subject matter not provided for in other main groups of this subclass

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

The invention discloses rib sill spacing measuring method and the application of a kind of soft base energy dissipation type debris flow drainage groove.Described rib sill spacing measuring method first passes through large scale topographical map survey calculation or field investigation actual measurement determines drainage groove longitudinal river slope, then calculated by mud-rock flow severe computing formula or actual sampling actual measurement determines debris flow body severe, determine the rib sill spacing of soft base energy dissipation type debris flow drainage groove finally by spacing measure formula between rib sill.The method has considered drainage groove longitudinal river slope, debris flow body severe, the big factor of drainage groove rib sill buried depth three, and combine soft base energy dissipation type debris flow drainage groove rib sill layout feature, carry out data matching by simulation laboratory test result and obtain soft base energy dissipation type debris flow drainage groove rib sill spacing measure formula, can rationally determine the rib sill spacing under different situations, scientific basis is provided for disaster prevention engineering design, and this measuring method calculates simplicity, adapt to requirement of engineering.

Description

The rib sill spacing measuring method of soft base energy dissipation type debris flow drainage groove and application
Technical field
The present invention relates to the rib sill spacing measuring method of a kind of soft base energy dissipation type debris flow drainage groove, and at prevention and cure project Application during middle rib sill line space design.
Background technology
Mud-rock flow be a kind of between landslide and current between the two-phase solid-liquid fluid containing mud, sand and stone, in turbulent flow with The kinestate of laminar flow, have outburst suddenly, motion quickly, energy is huge, impulsive force is strong, last the characteristic of activities such as of short duration, be The geologic hazard type that mountain area is common.For Mu Qian, debris flow drainage groove is a kind of effective engineering of preventing and treating mud-stone flow disaster Measure.Preventing and reducing natural disasters in practice at long-term mud-rock flow, the form of debris flow drainage groove gradually forms and perfect；The most conventional One of debris flow drainage groove form is soft base energy dissipation type drainage groove, and this drainage groove uses the combination of separate type retaining wall rib sill Structure, takes full advantage of the energy dissipating effect to mud-rock flow of ditch bed and rib sill, it is ensured that the safety excretion of mountain torrents and mud-rock flow.
Soft base energy dissipating principle is the high degree of agitation by being full of the mud-rock flow of clast and ditch bed matter, consumes mud-rock flow Motion complementary energy, to maintain mud-rock flow Uniform Flow.The effect of rib sill is to maintain clast volumetric concentration in stilling pond, makes erosion and deposition reach To balance, basis is not emptied, and by drop growth and decline (after rib sill) after sill, automatically adjusts mud position longitudinal river slope and flow velocity so that edge Journey resistance and local resistance are coordinated, and keep the constant of mud-rock flow severe and defeated shifting power.Therefore, reasonable Arrangement rib sill spacing is soft base The key factor of required consideration during the design of energy dissipating drainage groove.If drainage groove rib sill are arranged overstocked, it will cause the waste of resource； If arranging dilute, ditch bed material is acted on by mud-rock flow retrogressive erosion, it would be possible to basis, rib sill rear portion can be caused to be rushed Brush, affects rib sill stability, and then causes rib sill to destroy, affect the safe operation of engineering.
Determination currently, with respect to rib sill spacing can only be according to " debris flow control works design specification " (DZ/T0239- 2004) the rib sill line space design formula be given in, does not also have other the measuring and calculating about rib sill spacing to determine method.According to " mud Rock glacier prevention and cure project design specification " (DZ/T0239-2004), rib sill spacing uses equation below to determine:
L = H - M I 0 - I ′
In formula, L is erosion control floor (i.e. rib sill) spacing (m)；H is erosion control floor (i.e. rib sill) buried depth (m), typically takes H= 1.5～4.0m；Δ H is erosion control floor (i.e. rib sill) safe superelevation (m), typically takes Δ H=0.5m；I0Longitudinal gradient is designed for drainage groove Fall (i.e. drainage groove longitudinal river slope)；I ' be after washing away under floor (i.e. rib sill) drainage groove longitudinal gradient fall, typically take I '=(0.5～ 0.25)I0.From above-mentioned formula analysis, the size of rib sill spacing L is affected bigger by drainage groove longitudinal river slope.With rib sill buried depth It is 0.5m, I '=0.25I for 3.5m, safe superelevation0As a example by, rib sill distance computation value such as table 1 below under different drainage groove longitudinal river slopes:
Drainage groove longitudinal river slope 0.050 0.080 0.100 0.125 0.150 0.175 0.200 0.225 0.250 0.275 0.300
Rib sill spacing (m) 80.00 53.00 40.00 32.00 26.70 22.86 20.00 17.70 16.00 14.60 13.30
Rib sill distance computation value under the different drainage groove longitudinal river slope of table 1
As shown in Table 1, when drainage groove longitudinal river slope is relatively big, and when for example, 0.200～0.300, rib sill spacing excursion is 20.00m～13.30m, is consistent with engineering practice；But when drainage groove longitudinal river slope is less, for example, 0.050～0.080 Time, rib sill distance computation value excursion is 80.00m～53.00m, and result of calculation is bigger than normal, with existing case history not being inconsistent Close.On the other hand, this rib sill distance computation formula only accounts for rib sill buried depth and drainage groove longitudinal river slope the two factor, not Consider the mud-rock flow character relative influence to rib sill spacing.
Summary of the invention
The purpose of the present invention is aiming at the deficiencies in the prior art, it is provided that the rib of a kind of soft base energy dissipation type debris flow drainage groove Sill spacing measuring method and application thereof, the method can rationally determine soft base energy dissipating drainage groove rib sill spacing, for rib sill spacing Design provides foundation, calculates simplicity, and desired parameters is few, and computational solution precision is high, adapts to actual requirement of engineering.
For achieving the above object, the technical scheme is that
The present invention proposes the rib sill spacing measuring method of a kind of soft base energy dissipation type debris flow drainage groove, described soft base energy dissipation type Debris flow drainage groove includes that some bottom lands arranged at a certain distance extend transversely through the drainage groove side wall of type rib sill and both sides thereof, rib Spacing measuring method step between sill is as follows:
(1) surveyed by large scale topographical map survey calculation or field investigation, determine drainage groove longitudinal river slope I0；Pass through Mud-rock flow severe computing formula calculates or actual sampling actual measurement, determines mud-rock flow severe γ, unit kN/m3。
(2) spacing L between rib sill is determined by below equation
L = 0.423 e 0.195 h 0 γ 0.5 I 0
In formula, the spacing between L rib sill, unit m；
h0Rib sill buried depth, takes " debris flow control works design specification " recommendation, value according to engineering practice 1.5-4.0m；
γ mud-rock flow severe, unit kN/m3, step () determine；
I0Drainage groove longitudinal river slope, is determined by step ().
The inventive method is based on more than 80 debris flow drainage groove simulation experiments, and combines soft base energy dissipating drainage groove rib sill layout Feature, by simulation experiment result is carried out scale model, data matching etc., thus draws soft base energy dissipation type debris flow drainage groove The computing formula of rib sill spacing, it is adaptable to the determination of soft base energy dissipation type debris flow drainage groove rib sill spacing in engineering design.
Compared with prior art, the invention has the beneficial effects as follows: considered drainage groove longitudinal river slope, mud-rock flow severe, The big factor of drainage groove rib sill buried depth three, and combine soft base energy dissipation type debris flow drainage groove rib sill layout feature, pass through lab simulation Result of the test carries out data matching and obtains soft base energy dissipation type debris flow drainage groove rib sill spacing measure formula, can rationally determine difference In the case of rib sill spacing, provide scientific basis for disaster prevention engineering design, and this measuring method calculate simplicity, suitable Answer requirement of engineering.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of soft base energy dissipation type debris flow drainage groove.
Fig. 2 is the schematic top plan view of soft base energy dissipation type debris flow drainage groove.
In figure, label is as follows:
1 rib sill 2 side wall
I0Spacing between drainage groove longitudinal river slope L rib sill
h0Rib sill buried depth
Detailed description of the invention
Below in conjunction with the accompanying drawings, the preferred embodiments of the present invention are further described.
Embodiment one
As shown in Figure 1 and Figure 2.Certain debris flow gully is a Zhigou of big Jinchuan, Upper Reaches of Dadu River master stream right bank, drainage area For 8.5km2, the long 6.20km of tap drain, basin peak height above sea level 3650m, minimum point height above sea level 2700m, there is mountain height, Gu Shen, slope steep Lineament, formation and activity for mud-rock flow provide favorable terrain geomorphologic conditions.
For alleviating local mud-stone flow disaster, intend building a soft base energy dissipation type debris flow drainage groove, institute in mud-rock flow tap drain road State soft base energy dissipation type debris flow drainage groove and include that some bottom lands arranged at a certain distance extend transversely through type rib sill 1 and both sides thereof Drainage groove side wall 2.Below the spacing between these drainage groove rib sill 1 is calculated, specifically comprise the following steps that
The first step, by large scale topographical map survey calculation, determines drainage groove longitudinal river slope I0It is 0.12；Pass through mud-rock flow Severe computing formula calculates, and determines that mud-rock flow severe γ is 19kN/m3。
Second step, according to " debris flow control works design specification ", and incorporation engineering is actual, determines rib sill 1 buried depth h0For 2.0m； The spacing between rib sill 1 is determined by below equation L = 0.423 e 0.195 h 0 γ 0.5 I 0 = 0.423 e 0.195 × 2 × 19 0.5 0.12 = 22 m . According to this can this drainage groove design time rib sill 1 between spacing value be 22m.
Embodiment two
As shown in Figure 1 and Figure 2.Certain debris flow gully is a Zhigou of Sun Shui river, Along The Anning River tributary right bank, and tap drain is long 4.20km, drainage area 4.10km2, flow through certain county town, be a debris flow gully the most disastrous.This gully mud-rock flow forms district Raceway groove is suddenly anxious, two sides side slope extremely unstable, and has landslide activity, often breaks out disastrous mud-rock flow in ditch.According to work of blocking Journey, then quantities and investment are the biggest, and effect is the most obvious.
For alleviating local mud-stone flow disaster, intend building a soft base energy dissipation type debris flow drainage at mud-rock flow raceway groove accumulation area and lead Groove, described soft base energy dissipation type debris flow drainage groove include some bottom lands arranged at a certain distance extend transversely through type rib sill 1 and The drainage groove side wall 2 of both sides.Below the spacing between these drainage groove rib sill 1 is calculated, specifically comprise the following steps that
The first step, is surveyed by field investigation, determines drainage groove longitudinal river slope I0It is 0.15；By reality sampling actual measurement, really Determining mud-rock flow severe γ is 17kN/m3。
Second step, according to " debris flow control works design specification ", and incorporation engineering is actual, determines rib sill 1 buried depth h0For 3.0m； The spacing between rib sill 1 is determined by below equation L = 0.423 e 0.195 h 0 γ 0.5 I 0 = 0.423 e 0.195 × 3 × 17 0.5 0.15 = 19 m . According to this Can this drainage groove design time rib sill 1 between spacing value be 19m.

Claims (2)

1. a rib sill spacing measuring method for soft base energy dissipation type debris flow drainage groove, described soft base energy dissipation type debris flow drainage groove Extend transversely through the drainage groove side wall (2) of type rib sill (1) and both sides thereof including some bottom lands arranged at a certain distance, its feature exists In: the spacing measuring method step between rib sill (1) is as follows:
(1) surveyed by large scale topographical map survey calculation or field investigation, determine drainage groove longitudinal river slope I0；Pass through mud-rock flow Severe computing formula calculates or actual sampling actual measurement, determines mud-rock flow severe γ, unit kN/m3；
(2) spacing L between rib sill (1) is determined by below equation
L = 0.423 e 0.195 h 0 γ 0.5 I 0
In formula, the spacing between L-rib sill (1), unit m；
h0-rib sill (1) buried depth, value 1.5-4.0m；
γ-mud-rock flow severe, unit kN/m3, step () determine；
I0-drainage groove longitudinal river slope, is determined by step ().
The application of the rib sill spacing measuring method of soft base energy dissipation type debris flow drainage groove the most as claimed in claim 1, its feature It is: be applicable to the determination of soft base energy dissipation type debris flow drainage groove rib sill spacing.
CN201510247582.8A 2015-05-15 2015-05-15 The rib sill spacing measuring method of soft base energy dissipation type debris flow drainage groove and application Expired - Fee Related CN104831679B (en)

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Publication number Priority date Publication date Assignee Title
CN105256768B (en) 2015-09-09 2017-03-22 中国科学院水利部成都山地灾害与环境研究所 Box energy dissipation section designing method of box energy dissipation debris flow discharging and guiding groove
CN108708353B (en) * 2018-05-29 2020-03-17 中国科学院、水利部成都山地灾害与环境研究所 Design method for rib sill of soft foundation energy dissipation type debris flow drainage groove
CN110499719B (en) * 2019-08-28 2024-07-02 四川建筑职业技术学院 Debris flow anti-collision rib sill structure and system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2654683Y (en) * 2003-11-27 2004-11-10 陈洪凯 Mud-rock flow quick draining structure
CN101886374A (en) * 2010-07-07 2010-11-17 中国科学院水利部成都山地灾害与环境研究所 Groove bottom-reinforced fully lined debris flow drainage groove and construction method thereof
CN102373692A (en) * 2011-11-25 2012-03-14 中国科学院水利部成都山地灾害与环境研究所 Box body lining type mudslide discharging and guiding groove and application and construction method thereof
CN102720160A (en) * 2012-06-15 2012-10-10 中国科学院水利部成都山地灾害与环境研究所 All-lining debris flow draining and guiding groove with roughened groove bottom and application thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6904718B2 (en) * 2003-11-07 2005-06-14 Stephen P. Fox Leaf guard for gutters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2654683Y (en) * 2003-11-27 2004-11-10 陈洪凯 Mud-rock flow quick draining structure
CN101886374A (en) * 2010-07-07 2010-11-17 中国科学院水利部成都山地灾害与环境研究所 Groove bottom-reinforced fully lined debris flow drainage groove and construction method thereof
CN102373692A (en) * 2011-11-25 2012-03-14 中国科学院水利部成都山地灾害与环境研究所 Box body lining type mudslide discharging and guiding groove and application and construction method thereof
CN102720160A (en) * 2012-06-15 2012-10-10 中国科学院水利部成都山地灾害与环境研究所 All-lining debris flow draining and guiding groove with roughened groove bottom and application thereof

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