CN104314084B - Stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow - Google Patents
Stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow Download PDFInfo
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- CN104314084B CN104314084B CN201410476064.9A CN201410476064A CN104314084B CN 104314084 B CN104314084 B CN 104314084B CN 201410476064 A CN201410476064 A CN 201410476064A CN 104314084 B CN104314084 B CN 104314084B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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Abstract
The present invention relates to stake safeguard structure at the bottom of the small-bore combination rib of a kind of especially big high-order mud-rock flow, especially stake safeguard structure at the bottom of the small-bore combination rib adopted for especially big high-order mud-rock flow " stifled effect of bursting ", belong to hazards control security technology area, be widely used in the control of the especially big high-order mud-rock flow in high steep mountain area.Comprise the small-bore pile group of many Pin and girt strip; The small-bore pile group of described many Pin comprises the small-bore pile group of two more than Pin, the small-bore stake of each Pin is containing 3 campsheds, first row, second row, the 3rd campshed respectively, three campsheds in every Pin are all fixedly connected on top girt strip, stake footpath in the small-bore pile group of each Pin is identical, and the small-bore pile group of a Pin is positioned at meets impulse face.The fast lifting of the present invention ability in fixing mud-rock flow thing source, decreases the mud-rock flow amount of going out, and reduces and forms large-scale high-order high speed mud-rock flow possibility.
Description
Technical field
The present invention relates to a kind of debris flow technology, especially stake protection at the bottom of the small-bore combination rib adopted for especially big high-order mud-rock flow " stifled effect of bursting ", belong to hazards control security technology area, be widely used in the control of the especially big high-order mud-rock flow in high steep mountain area.
Background technology
Owing to sweeping along, block stone easily digs erosion to especially big high-order mud-rock flow, trench bottom scraped by shovel and both sides furrow bank soil stone, thus causes corrasion and the furrow bank lateral erosion of ditch bed, is formed " stifled effect of bursting ", adds the amount of going out of mud-rock flow.Abundant mud-rock flow is gone out solid matter and is also easily caused raceway groove to block further, and form stifled type mud-rock flow of bursting after bursting, flow increases several times even decades of times, causes preventive works to lose efficacy, the security of the lives and property of the numerous residents in serious threat downstream.Preventing mud-rock flow from digging erosion for controlling, reducing debris flow velocity, generally adopt the solid bed sill of objective case more.
But in the face of occurring in especially big high-order mud-rock flow high speed that Gao Dou hillside, western mountainous areas pours down in recent years, high-energy power strongly dug erosion and revealed the inside story, and the solid bed sill of objective case cannot withstand a single blow, and are destroyed by rush of water very soon.The solid bed sill of cast-in-situ reinforced concrete have applied to the control of especially big high-order mud-rock flow in high steep mountain area gradually as the engineering means that solid source stability is stronger.
But should be noted that the solid bed sill of cast-in-situ reinforced concrete need excavation construction, time cost is high, especially more dangerous in rainy season construction, is also unfavorable for the quick Emergency management of mud-rock flow.Therefore lose stake quick protection technology at the bottom of the small-bore combination rib of river bottom protection in the urgent need to studying a kind of novel anti-plane, fast lifting fixes the ability in mud-rock flow thing source.
Especially big high-order debris flow has important social effect and economic worth.The high-order debris flow gully in China western mountainous areas is comparatively grown, if can not effectively reduce the mud-rock flow amount of going out, the large-scale high-order high speed mud-rock flow of easy formation, abundant mud-rock flow is gone out solid matter and is also easily formed stifled type mud-rock flow of bursting further, flow increases several times even decades of times, destroy by rush of water house, downstream, and clog downstream river course endangers huge.In addition, break out the raceway groove of high-order mud-rock flow for one, then needed to drop into engineering immediately and carry out Emergency management, prevent the further sociability outburst of mud-rock flow.
Summary of the invention
Object of the present invention is exactly the problems referred to above existed for prior art, by arranging small-bore pile group and girt strip, propose stake quick protection technology at the bottom of a kind of small-bore combination rib of anti-plane erosion river bottom protection of novel no-dig technique, thus increase the stability in fixing mud-rock flow thing source fast.Meanwhile, pile group is connected by girt strip, improves its resistance to overturning and safety.
Object of the present invention and solve its technical problem and can be achieved through the following technical solutions.
Stake quick protection technology at the bottom of the small-bore combination rib of especially big high-order mud-rock flow proposed according to the present invention, comprising: the small-bore pile group of many Pin and girt strip.The small-bore pile group of described many Pin comprises the small-bore pile group of two more than Pin, and each Pin, containing 3 campsheds, is first row, second row, the 3rd campshed (1-1), (1-2), (1-3) respectively.Three campsheds in every Pin are all fixedly connected on top girt strip (2), and the stake footpath in the small-bore pile group of each Pin is identical, and the small-bore pile group of a Pin is positioned at meets impulse face.
First, second and third in every Pin arranges small-bore stake arrangement in " product " font, stake diameter is at 200mm ~ 300mm, centre distance between adjacent two campsheds in front and back is the radius sum of adjacent footpath stake, is the distance of 2 ~ 3 times of stake diameters with the centre distance between the small-bore stake of row.The described small-bore stake king-pile of a Pin is long a long and short two specification, and long-short pile is spaced, and all the other Pin small-bore stake king-pile is long identical with a Pin, or all the other Pin small-bore stake king-pile is long identical with stub in a Pin.
The thickness of girt strip is 0.5 ~ 0.8m, and bond length is the distance of 3 ~ 4 times of stake diameters.
Small-bore pile group and girt strip are reinforced concrete structure.
Any side of girt strip is not formed meets impulse face.
Small-bore pile group adopts precast beam or cast in situs.
Beneficial effect
Stake quick protection technology at the bottom of the small-bore combination rib of the especially big high-order mud-rock flow of the present invention, has following effect:
(1) the fast lifting ability in fixing mud-rock flow thing source, decreases the mud-rock flow amount of going out, and reduces and forms large-scale high-order high speed mud-rock flow possibility;
(2) program of administering is clear, workable;
(3) speed of application is fast, non-excavating construction, avoids because excavation causes time delay.
(4) for there is the quick Emergency management of the raceway groove of high-order mud-rock flow, preventing further sociability from breaking out mud-rock flow, alleviating and place, downstream is destroyed.
In sum, the present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical technical method.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, can be implemented according to the content of manual simultaneously, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is pilework layout schematic diagram at the bottom of the small-bore combination rib of especially big high-order mud-rock flow of the present invention;
Fig. 2 is I-I sectional drawing in Fig. 1;
Detailed description of the invention
For further describing the present invention, below in conjunction with drawings and Examples, stake quick protection technology at the bottom of the small-bore combination rib of the especially big high-order mud-rock flow of the present invention is described in further detail.
By pilework layout schematic diagram at the bottom of the small-bore combination rib of the especially big high-order mud-rock flow shown in figure and composition graphs 2 find out, according to the present invention propose the small-bore combination rib of especially big high-order mud-rock flow at the bottom of stake quick protection technology, comprising: the small-bore pile group of many Pin and girt strip.The small-bore pile group of described many Pin comprises the small-bore pile group of two more than Pin.Three campsheds in every Pin are all fixedly connected on top girt strip.First, second and third in every Pin arranges small-bore stake (1-1), (1-2), (1-3) arrangement in " product " font, stake diameter is 200mm ~ 300mm, centre distance between adjacent two campsheds in front and back is the radius sum of adjacent footpath stake, is the distance of 2 ~ 3 times of stake diameters with the centre distance between the small-bore stake of row.In the small-bore stake of each Pin, same campshed is long different, and long-short pile is spaced successively.The thickness of girt strip is 0.5 ~ 0.8m, and bond length is the distance of 3 ~ 4 times of stake diameters.Small-bore pile group and girt strip are reinforced concrete structure.Do not formed by any side of girt strip and meet impulse face.
Embodiment 1: regional situation of constructing: raceway groove two sides grow the geological disaster such as avalanche, landslide in a large number, its solids source total amount estimation is less than 4,000,000 sides, and dynamic reserve 1,400,000 side, after this mud-rock flow solids source is more than 2,600 ten thousand sides, dynamic reserve 6,800,000 side.The damming body formed in mud-rock flow and mouthful place that bursts have strongly to wash away reveals the inside story and the feature of higher mud position.For preventing this area master, Zhigou breaks out mud-rock flow further, goes out more solids sources, and form the stifled property mud-rock flow of bursting causing calamity, Specific construction step is as follows.First step: smooth measurement and positioning.Smooth location, carries out surveying setting-out according to design, the stake position of construction requirement, spacing and absolute altitude; Second step: the small-bore pile group of 3 Pin of constructing, first, second and third in every Pin arranges small-bore stake arrangement in " product " font.Stake diameter is 300mm, the centre distance 300mm between adjacent two campsheds in front and back, is 900mm with the centre distance between the small-bore stake of row.Small-bore rig pore-creating, puts into reinforcing cage, concreting, and every Pin stake is the arrangement straggly of 3m, 5m long-short pile, is all long stake around stub, is all stub around long stake.Lay 3 Pin 3 altogether at the raceway groove place that 15m is long and arrange totally 144 small-bore stakes; Third step: construction girt strip.At every Pin small-bore stake top layout reinforcing bar, and formwork for placing is set around, concreting.The thickness of girt strip is 0.8m, and bond length is 0.8m.Backfill smooth location, makes girt strip upper surface flush with earth's surface, place.
Embodiment 2: regional situation of constructing: debris flow gully local raceway groove landform is comparatively gently open, and the gradient is less than 10 °, and current are more slow, and the water yield is less, and flow is at 50m
3/ below s.For this kind of situation, the small-bore pile group of 2 Pin of constructing after the smooth location of the exit or entrance of a clitch, lays 2 Pin 3 altogether at the raceway groove place that 50m is long and arranges totally 300 prefabricated small-bore stakes, and first, second and third in every Pin arranges small-bore stake arrangement in " product " font.Stake diameter is 200mm, the centre distance 200mm between adjacent two campsheds in front and back, is 600mm with the centre distance between the small-bore stake of row.The same campshed of one Pin of meeting impulse face is long different, and long-short pile is spaced successively, long stake 5m, stub 3m, and the 2nd Pin is 3m stub entirely.Cast in situs girt strip, the thickness of girt strip is 0.5m, and bond length is 0.6m.Backfill smooth location, makes girt strip upper surface flush with earth's surface, place.
Content described in this manual embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also and conceive the equivalent technologies means that can expect according to the present invention in those skilled in the art.
Claims (7)
1. stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow, is characterized in that: comprise the small-bore pile group of many Pin (1) and girt strip (2); The small-bore pile group of described many Pin (1) comprise the small-bore pile group of two more than Pin, the small-bore stake of each Pin is containing 3 campsheds, first row, second row, the 3rd campshed (1-1), (1-2), (1-3) respectively, three campsheds in every Pin are all fixedly connected on top girt strip (2), stake footpath in the small-bore pile group of each Pin is identical, and the small-bore pile group of a Pin is positioned at meets impulse face.
2. stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow according to claim 1, first, second and third that it is characterized in that in described every Pin arranges small-bore stake (1-1), (1-2), (1-3) arrangement in " product " font, stake diameter is at 200mm ~ 300mm, centre distance between adjacent two campsheds in front and back is the radius sum of adjacent footpath stake, is the stake diameter of 2 ~ 3 times with the centre distance between the small-bore stake of row.
3. stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow according to claim 1, it is characterized in that the described small-bore stake king-pile of a Pin is long and have a long and short two specification, and long-short pile is spaced, all the other Pin small-bore stake king-pile is long identical with a Pin, or all the other Pin small-bore stake king-pile is long identical with stub in a Pin.
4. stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow according to claim 1, it is characterized in that the thickness of described girt strip (2) is 0.5m ~ 0.8m, bond length is the distance of 3 ~ 4 times of stake diameters.
5. stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow according to claim 1, is characterized in that: described small-bore pile group (1) and girt strip (2) are reinforced concrete structure.
6. stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow according to claim 1, is characterized in that: any side of described girt strip (2) is not formed meets impulse face.
7. stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow according to claim 1, is characterized in that described small-bore pile group adopts prefabricated or cast-in-site.
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| CN201410476064.9A CN104314084B (en) | 2014-09-17 | 2014-09-17 | Stake safeguard structure at the bottom of the small-bore combination rib of especially big high-order mud-rock flow |
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| JP2007177467A (en) * | 2005-12-27 | 2007-07-12 | Jfe Metal Products & Engineering Inc | Debris flow blocking work and its construction method |
| JP5129977B2 (en) * | 2007-04-19 | 2013-01-30 | 日鐵住金建材株式会社 | Steel slit dam |
| CN203475490U (en) * | 2013-08-29 | 2014-03-12 | 中交二公局第四工程有限公司 | Root file based foundation reinforcement structure for debris flow gully crossing tunnel |
| CN203593996U (en) * | 2013-11-21 | 2014-05-14 | 中国科学院、水利部成都山地灾害与环境研究所 | Structural body for preventing and controlling starting of trench debris flows |
| CN103556602B (en) * | 2013-11-21 | 2015-06-10 | 中国科学院、水利部成都山地灾害与环境研究所 | Structural body for preventing starting of gully debris flows and design method of structural body |
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