US1873496A

US1873496A - River revetment

Info

Publication number: US1873496A
Application number: US472809A
Authority: US
Inventors: Charles E Snyder
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-08-04
Filing date: 1930-08-04
Publication date: 1932-08-23
Anticipated expiration: 1949-08-23

Description

Aug. 23, 1932. c: E. sNYDER 'f '1,873,496

RIVER REVETMENT Filed Aug. 4, 195o zsneets-shet 1 Aug. 23, 1932. c. E. sNYDER RIVER REVETMENT Filed Aug. 4, 1930 2 Sheets-Sheet 2 :Slmcntor Patented Aug. 23, 1932 UNITED STATES CHARLES E. SNYDER, F SILVER LAKE, KANSAS l RIVER REVETMENT Y Application filed August 4, 1930. Serial No. 472,809. Y,

rIhis invention relatesto an improvement in a river revetment and has for its object to provide a current deflector which may be conveniently installed along the banks of siltbearing streams for preventing erosion and adding silt to land bordering on streams which have been Washed away by action of water during freshets, `ice gorges or the like.y

It is an object to provide such a construction and arrangement for the fascines in streams that they will deflect water currents to great advantage and will be more effective than usual in forming silt beds.

A further object of the invention is to provide fascines which may be produced at a limited expense and will consist of parts which may be assembled at the location where used to avoid, in a measure, the expense of shipping charges.

Still another object is to provide fascines which will eectively resist stresses directed thereto by water currents and of such arrangement that while permitting water to `How therethrough will cause eddies and back- 'waters to be formed, and thereby causing deposits of silt in a manner more eifective than ordinary.

Withthe foregoing objects in view and others to be mentioned, the invention presents a new construction, combination and arrangement of parts as described herein and claimed, and as illustrated in the accompanying drawings, it being understood that changes may be made in form, size, proportion of parts and minor details, said changes being within the scope of the invention as claimed.

In the drawings Fig. 1 is a sectional view vshowing the bed of a stream, the silt accumulator or current deector being secured to the bank.

Fig. 2 is a plan view of the parts shown in Fig. 1. Fig. 3 is a plan view of one ofthe fascines. Fig. 4 is an end view of a screen section. Fig. 5 is a plan or side view of a screen section. Fig. 6 illustrates strands or cables used for connecting end to end the screen sections of a fascine.

Referring now to the drawings for a more particular description, the invention is shown and described in connection with the botto1n7 of a stream having a bank 8, thenormalleveh of the water being indicated at 9. p

In order that the objects may be attainedVV as firstmentioned, I provide a plurality of 575 fascines y10, and as best shown in Figs. 1 and 2 of the drawings, these fascines, by use of cables or strands 11 and an anchor-'post 12 may be secured to the bank of a stream vin a Y water current and may bemaintained trans- 00 versely thereof, each fascine being held in spaced relation to the fascinel adjacent thereto. l

As best shown nin Fig. 3 of the.drawings each fascine consistsof rollsof screen wire or screen-secti`ons 13k connected with each other by Vany suitable means as by use of strands or cables 141 (Fig.yv6).1 i

In practice, these fascines may be 'disposed approximately ffeet from each other to advantage, but of course the space Vbetween the fascinesV willdepend upon the swiftness of a water current and shape of the bank.' At 15 are indicated cables orstrong wiresfwhich1 connect the screen wire rolls13` one with the other of the several fascines. While I have shown three jfascines, theV number maybe greater or'lesser as may be required.`

rAs best shown in Fig. 3 spacesl arepro vided betweenthe wire rolls 13 of each fascine 10 tope'rmitwater to flow' therethrough with# out appreciable resistance, and it vwill be' understood that the foraminous rolls 13 -of wire screen will resist a Vmovement of water therethrough in a greateror lesser degree,'this being a desirable feature to cause deflection of the water. Y 1 -f b`llVhen a movement of water is obstructed,V p the silt carried by the water will move down- 9o wardly by action of, gravity and will form deposits on the bedof theI stream or on the bank 8. The water'fiowing throughrthe

spaces

16,15 in conjunction with.V the obstructed water p moving through the rolls 13will form eddies 93 at the down stream sides of the fascines 10, the result beingv that silt-deposits will be formed and added tothe bank 8. y

The fascines 10,in therpresent'instance areV v disposed inclin'edly for protecting the bank 100.

i of a stream and to cause alluvial deposits to said bank. l

To protect the banks of silt-bearingV streams, it is an advantage to dispose the fascines in such a manner that they will be partly immersed in the water, the water line 9 reach- I ing their middle as shown in Fig. 1 of4 the drawings,fand onfoccasions of freshets and when entirely submerged they operate Vto great advantage.

tudinal axes substantially at right angles to the direction of the general flow of a stream.

In testimony whereof, I aiix my signature.

CHARLES lE. SNYDER.

The screen wire rol-'ls or oram'inous's'cr'een-rv sections 13 should be provided'with means tom prevent'sagging, crushing or collapsiifig,` and Y I have shown apertured hoopsl7 for this purpose, the ends of the cables or strands 14 suitable means. y. It will be appreciated that the parts vrequired .for the construction of the fascines beingsecured to saidy hoops or loops by any V10V-are' few and simple and therefore they may be made and assembled ata limitedexpensel j l While any suitable means may be employed or .securing the rolls or sections 13 of jeach fascine in spaced relation I have shown fastening.l elements or loopsl 18 (Fig. 6) which may be Vprovided for theends. of the vstrands 14 adapted to engage in the apertures 19 of the hoops 17 for this purpose. y

While the hollow, cylindrical, foraminous sections lmayrbe constructed of any suitable material, I prefer to usethe wire netting for these sections as mentioned.

VThe spaces 16 between the ends of the sections 13 should be adequate 'to permit a free flow of wat-er therethrough. These Yspaces 16 tend to reduce thestresses of flowing water directed to the sectionsso that, by means of Y the strandslor cables 11 and 15 the fascin'e-s '10 may be maintained `transversely of thel water current, and that thesections of eachy fascine maybe disposed with their longituldinal axes approximately in alignment, the strands 14being approximately parallel and 'Y offering only a slight resistance to al flow of water through the spaces 16 between theV ends ofthe sections. Y y

. The distance apart of the sections of a fascine-.may be a matter of choice, depending upon. thefswi'ftness of the water current, butY as a ru1e,1the length of the spaces 16 should be approximately equal to the length ofthe section.

I claim as my invention: A riverrevetment, comprising a plurality of. substantially cylindrical fasci-nes, each fascine having axially spaced apart Wire