Kev cai lij chojNtxawg ua raws

Lub teeb liab kem: hauj lwm, hom thiab cov yam ntxwv

Lub koom haum ntawm txoj kev nyab xeeb yuav lub installation ntawm taw ntawm cov khoom nyob rau hauv ib tug ntau yam ntawm designs. Txhua raws li ib feem ntawm cov tub sau ntawv infrastructure nyob ib tug tshwj xeeb qhov chaw nyob rau hauv pab pawg neeg no. Lawv ntsia rau pej xeem txoj kev thiab yog qhov zoo ntawm pointers rau ib thaj tsam ntawm cheeb tsam sib txawv ntawm kev siv. Thaum zoo li no txoj kev kem tej zaum yuav txawv seem yam ntxwv, nws yog los ntawm ntaub ntawv sib txawv thiab muaj ib tug tshwj xeeb xim sau npe.

Sij hawm lub teeb liab kem nyob rau hauv txoj kev infrastructure

Cov nqi hluav taws xob ntawm no txoj kev kho no yog los muab nrig txog kev pom orientation ntawm cov neeg tsav tsheb. Wherein txhua kev hloov kho yog rau hauv ib lub site. Piv txwv li, ib tug qauv uas muaj dawb cov vaj tse tsim los muab ntsia rau ntawm tus roadside. Qhov tshwj xeeb nta ntawm cov qauv muaj xws li cov nyob ntawm ib inclined cim thiab retroreflective caij CH1. Ncaj qha rau lub txoj kev teev kem hom P nrog ib lub cev ntawm cov txiv kab ntxwv los yog liab. Tej kev hloov kho yuav muaj nyob rau hauv lub islets ntawm kev ruaj ntseg thiab kev sib cais sawb. Lwm yam versions ntawm txhua yog piav nyob rau hauv cov pab pawg neeg, tab sis muaj ib tug tsawg hnov sib txawv.

Nta teeb liab Corps Txoj kev kem

Zoo tag nrho cov qauv ntawm kab ua los ntawm cov khoom uas muaj txaus feem-resistant rau sab nraum zoov siv viscosity. Qhob tso tawm yog muab los xam rau tau ntawm lub cev kuj mus thauj, thaum lwm tus neeg tsuas siv los qhia rau txoj kev cov neeg siv. Cov no muaj xws txhua taw tsheb, yas, kuj xav tau ceev ceev dismantling tsis muaj kev siv ntawm tshwj xeeb cov khoom. Tsis tas li ntawd, cov yas tsev nyob ntawm lub hom ntawm cov khoom yog xam rau Ameslikas kev puas tsuaj, dabtsi yog khoov los yog deflection ntawm cov nyiaj them yug feem ntawm tej yam. Txawm li cas los ntawm tus raug cov ntaub ntawv uas, cov lub cev muaj ib tug voos los yog rectangular seem nrog sib npaug ntawm cov ces kaum.

Thov thiab ntoo xwm rau tuav. Feem ntau lawv yog ua los ntawm softwood, loj hlob nyob rau hauv lub hwv chaw thiab tam sim ntawd lub lag luam. Los ntawm txoj kev, ntoo qauv yog xav tau feem ntau pheej yig ntawm cov txhav txhawb - lawv yuav tsum tau yuav los ntawm ib tug nruab nrab ntawm 300-400 p. Ib qho ntxiv uas yog hais tias lub teeb liab mus txawv tebchaws kem, tus nqi ntawm uas tsis pub tshaj 500 p., Feem ntau tsis muaj siab ntsuas ntawm durability.

Ntsiab nta

Nyob rau hauv no ya, yog tsis muaj kev cai nruj heev standardization qauv. Ib tug ntau yam ntawm kev hloov kho ua ntau variation nyob rau hauv daim thiab loj tsis, uas, li cas los xij, yog tswj los ntawm GOST. Piv txwv li, lub nruab nrab qhov siab ntau yog 750-1000 hli. Lub thickness yog ntau general parameter thiab feem ntau yog 100 hli. Npav kab txaij rau ntawm lub cev nto muaj ntau hom ntawv, tsis hais cov xim. Lub thickness ntawm cov xim lub teeb liab kab yog hom twg los ntawm 40 mus 250 hli. Lub bands yuav muaj ntsug thiab kab rov tav, thiab oblique qhia. Rau nruab thiab muab hlau pins uas tuav tus tuav. Taw cov tsheb, yas kev pab txhawb nqa tuav tej zaum yuav muaj ib tug kabmob ntev ntawm txog 50 cm. Rau qhob qauv feem ntau muab lub hauv paus thiab lub hauv paus coj mus rau cov neeg kho tshuab tej yam thaum lub sij hawm collisions.

ntau ntau yam kab

Lub ntsiab feature ntawm kev faib - ib cov khoom ntawm kev siv thiab ua. Peb twb sau hais tias muaj yog ua kev reinforced, yas thiab ntoo hulls. Nyob rau hauv lub chav kawm ntawv ntawm yas qauv tau lawm ncua thiab saj zawg zog txoj kev kem, uas yog tus nqi qis thiab yooj yim rau nruab. Txawm li cas los, xws kev hloov kho yog feem ntau siv raws li ib tug ib ntus teeb liab kwv.

Los ntawm kev tsim kho, kab raug muab faib ua tej yam yooj yim thiab complex. Tus thawj yog raws li nyob rau hauv lub tsev hauv paus tsis muaj ntxiv inclusions. Nyob rau hauv lem, lub ib hauv av bar nruab nrab yog ib tug prefabricated qauv uas tej zaum yuav kuj muaj xws li tshwj xeeb restraints. Yas qauv, nyob rau hauv ib co embodiments txheeb ib puas lub teeb liab thiab cov kev txhawb no yog ua los ntawm txawv puas alloys thiab fillers.

Yuav tsum khij kem

Rau ntau pawg ntawm txhua meant ib tug neeg npav. Yog li ntawd, nyob rau cov qauv ntawm cov uas tsis txaus siab nyob rau hauv cov kev taw qhia ntawm cov nce tsheb, ntsug kev taw qhia yog thov cim nyob rau hauv dub, ua kom tiav nrog reflectors. ib kem cev, uas muaj nyob rau hauv lub qaum cheeb tsam ib tug bevel yog ua oblique dub sawb muaj ib tug dav uas muaj peev xwm ntau yam los ntawm 150 mus 250 hli. Qauv nrog ib tug ntoo khaub lig seem nyob rau hauv daim ntawv ntawm ib tug nplhaib los yog lub vajvoog arc kuj tau txais ib tug kab rov tav dub band dav ntawm 100 hli. Nws yog ib qho tseem ceeb los ua tim nyob rau hauv lub siab hais tias kev xyaum thiab ob-mog txheej, uas npog lub universal tug txoj kev. GOST R 50970-96 suav sau ntawv hais tias cov retroreflector yog thov tsuas yog nyob rau ib sab - nyob rau hauv cov kev taw qhia ntawm sibtshuam tsheb.

Tiv coatings txhua

Nyob rau hauv tas li ntawd mus rau lub kem tsev nyob yuav tsum tau raws li cov uas yuav tsum tau ntawm cov neeg kho tshuab kuj, cov txheej nto ntawm tus tiv thaiv khaubncaws sab nraud povtseg yog tseem tau. Lawv xam dab tsis zoo climatic yam. Thiab resistant rau dej thiab kub cawv kev pab them nqi feem ntau nrog lub markup. Raws li ib tug txoj cai, cov no yog cov tshwj xeeb xim tsev, yuav tau ua thiab lub teeb liab qhia muaj nuj nqi, thiab tseem ceeb tsim teeb meem rau lwm cawv. Cov feem ntau xav tau zoo sib xws kev tiv thaiv ntawm cov ntoo tug, uas tsis muaj tshwj xeeb impregnation nkag yauv biodegradation. Yog li ntawd, txoj kev kem ua los ntawm cov cav ntoo, hauv qab feem yog ntxiv coated nrog kub bitumen tshaj rau tag nrho cov qhov tob ntawm nws immersion nyob rau hauv lub roadbed. Nyob rau hauv tas li ntawd, lub tshuab pub thiab rov qab qhov teeb meem los ntawm yas Certificate. Manufacturers yog tsim tshwj xeeb formulations ntawm tib composites, uas muab kuj mus rau sab nraud yam tseem ceeb ntawm tus kwv, tab sis kuj raws li cov uas yuav tsum tau ntawm ib puag ncig muaj kev ruaj ntseg.

kev khiav hauj lwm cov kev cai

Kev tso kawm ntawm txoj kev ua pob nyob rau hauv raws li cov kev cai ntawm kev tsim kho tej hauj lwm. Nyob rau hauv kev, cov cai yuav tsum tau hais tias taw khoom ntawm no hom tau ntsia tau rau hauv ib thaj tsam unfortified roadside tsam 35 cm los ntawm lub ntug ntawm thaj av cover. Yog hais tias siv kiag, npaj rau nkauj nraug sawb, nws qhov chaw nyob yog txiav txim nyob rau hauv raws li qhov chaw kev cai guardrails. Nyob rau hauv cov ntaub ntawv no, tag nrho cov qauv uas muaj cov bevels yog muab tso rau hauv xws li ib tug txoj kev uas lub txiav sab tig mus rau tus loj. Qhob khoom muaj ruaj los ntawm ib tug foundation puag thiab tsheb bollards kev sib sib zog nqus yas siv hlau rods nyob rau nruab nrab 50-70 cm. Qhov no tus nqi yuav raug muab txo yog tias ntxiv fasteners yog siv anchoring ntsiab.

xaus

Milestone ua ib qho tseem ceeb ua hauj lwm, qhia cov neeg tsav tsheb txog tsav tsheb qhia. Manufacturers siv zog los tsim tshiab thiab zoo tshaj ntawm txoj kev siv qhov muag tswb. Txawm tias cov kev taw qhia ntawm high-tech tsheb tswj systems, hom tsoos ntsuas yog tseem nyob rau hauv coob. Qhov no muaj txhawb rau cov uas tsis muaj nqi thaum uas sab yog pom tau hais cov tsheb, cov yas. Tus nqi ntawm xws khoom no tsuas yog 200-300 p. Obviously, qhob qauv yog muaj rau ib tug ntau dua tus nqi, uas tej zaum yuav mus txog 1-1.5 txhiab. Nyob ntawm seb cov hloov. Yuav ua li cas no cov cuab tam yuav qhia txoj kev zoo, nws nyob ntawm tus yam ntxwv ntawm ib tug Piv txwv li, thiab nyob rau hauv correctness ntawm nws cov installation.

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