Nɛgɛ fiyɛ min be tunnel Shotcrete kɔnɔ: Rebond, fanga minɛ ani yɔrɔjan

Kumabolo

Zuwɛnkalo tile 15, saan 2014

Beton sɔgɔnin dilanna walisa ka fanga minɛ, a ma kɛ ka fanga di mɔgɔw ma. O danfara kelenpe b’a yira fɛɛn min kama tunɛli baara be kɛ ni fiyɛ surunw, dozi caaman ani nɛgɛw ye minw be nɔrɔ ɲɔgɔn na.

Shotcrete mako be min na, o ye fanga minɛli ye, fanga tɛ

Tunɛli fɔlɔ dɛmɛni be tugu loziki wɛrɛ kɔ ka bɔ dugukolo sanfɛla labɛncogo la. Ni dugukolo yɛlɛmana, yɔrɔ min fiyɛra, o ka kan ka yɛlɛma n’a ye sanni a ka yɛlɛma yɔrɔnin kelen, o la, a labɛncogo paramɛtiri ye yɔrɔ be fanga hakɛ min minɛ yɔrɔ dɔ la. Erɔpu jamanaw ka kɛwale b’a yira ko fanga tɔ walima fanga min be sɔrɔ ni kɔrɔbɔli ye ka kɛɲɛ ni EN 14488-3 ye; Ameriki worodugu fan fɛ, mɔgɔw ka teli ka baara kɛ ni flexion toughness ye. Nɛgɛ nɛgɛ b’a lɔyɔrɔ sɔrɔ yɔrɔ min na: betɔn gwansan be se ka bɔ a la tuma min na a pɛrɛnna, k’a sɔrɔ nɛgɛ min be fanga sɔrɔ, o b’a ka setigiya fanba mara a pɛrɛnnin kɔ, o min be wagati san ka bɔ yen ani ka dɛmɛ dɔ fara a kan.

Rebound: Fiyɛri min ka jan, o be yɛlɛma ka caya

Rebound ye shotcrete ka sɔngɔ dogonin ye. Minɛn min tɛ nɔrɔ, o be ben kɔfɛ, ani betɔn gwansan be yɛlɛma 15% ka taga se 25% ma; fiyɛ be dɔ fara a kan dɔɔni sabu fiɲɛw be panpan nɛgɛkunbɛnnan na. Janya ye yɛlɛmani ye min ka gwɛlɛ ka tɛmɛ: 30 mm fiyɛ be yɛlɛma ka tɛmɛ 20 mm kan. O lo kama, a ka c’a la, mɔgɔw tɛ baara kɛ ni fiyɛ ye min janya ye milimɛtiri 50 wala 60 ye, hali ni fiyɛ minw ka jan, olu lo be nɛgɛw siri ka ɲɛ. O bɛnkan min be se ka kɛ, o ye milimɛtiri 20 ka taga se milimɛtiri 30 ma ani a bonya be milimɛtiri 0,55 ɲɔgɔn na, o la, fiyɛ be tugu fiɲɛ ka jigiyɔrɔ kɔ ka don dugukolo sanfɛ.

20-30 mm ye baara janya ye jiman ɲagaminin kama

Jiman ɲagaminin be fiyɛri janya dantigɛ ka tɛmɛ ɲagaminin jalen kan. O fɛn jimanw be pɔnpe ka tɛmɛ lɔgɔ dɔ fɛ, o la, fiyɛ pon janw ani bolow be yɛlɛma yɔrɔ minw na; nɛgɛdaga la, a ka kan ka jɛnsɛn fiɲɛ sɔgɔnin fɛ. 20 ka taga se milimɛtiri 30 ma, o be bɛn robow fanba ma minw be ɲagami ɲɔgɔn na, ani u bonya be se milimɛtiri 0,5 ka taga se milimɛtiri 0,75 ma, o be 40 ka taga se 55 ma. kɛmɛsarada la, fila wala saba.

25-45 kg/m3 ani dilan kalanw

Tunnel shotbeton hakɛ ka teli ka jigi kilo 25 ni 45 cɛ m3 kelen kɔnɔ. ka taga se 30 ma, o be yɔrɔw datugu minw be farakurun ɲumanw kɔfɛ; 35 ka taga se 45 ma, o be yɔrɔ minw datugu, yɔrɔ minw ka bon ani yɔrɔ minw be yɛlɛma yɛlɛma. kg/m3 sanfɛ baarakɛcogo be dɔgɔya ka gwɛ ani baarakɛla be jii fara a kan a yɛrɛ ma, o min be fanga tigɛ ka ɲɛ. O lo y’a to site web caaman b’a fɔ ko furakisɛ hakɛ ka ca nka fanga man bon. Dozi caman ka kan ka fara ɲɔgɔn kan ni ɲagamininw ye minw be ji dɔgɔya ani minw be nɔgɔ yɛlɛma, ani ka sɛgɛsɛgɛri kɛ ka sɛgɛsɛgɛri kɛ ka sɔrɔ ka furakisɛw fiyɛ.

Balling: Dɛsɛ cogo min be Shotcrete siranya ka tɛmɛ

Fiber ball min be layiri kɔnɔ, o ka jugu ka tɛmɛ nafantan kan: a be yɔrɔ lakolon ni awiyɔn barikaman dɔ lawuli min be kɛ farali daminɛyɔrɔ ye ni dugukolo be yɛlɛma. Balɔntan be sababu saba lo sɔrɔ: ka fiyɛw don bolo la ɲagaminan kɔnɔ, ka ɲagami wagati dafa ani ka yɔrɔw yɛlɛma ka dama tɛmɛ. Fiber ka kan ka yɛlɛma walima ka balo ni mansin dɔ ye min labɛnna, ani ka ɲagami sekɔndi 30 ka taga se sekɔndi 60 ma betɔn gwansan kan. Fiyɛri nɔrɔninw be farati dɔgɔya kosɔbɛ: lɔgɔ be balo i n’a fɔ fɛn kelen, kɔli min be yɛlɛma jii kɔnɔ, o be yɛlɛma ani fiyɛri kelen kelen bɛɛ be bɔ ɲɔgɔn na, o be kelenya fisaya ni 40% ye ka tɛmɛ fiyɛri nɔgɔninw kan. O lo kama, robo minw be ɲagami ni ji ye, olu ka teli ka fɛnw nɔrɔ ɲɔgɔn na.

Ka baara kɛ ni Mesh ani Arches de fer

Nɛgɛ nɛgɛ tɛ nɛgɛ nɛgɛw nɔɔ ta. Dugukolo kilasi IV ni V kɔnɔ, arc be diɲɛ bɛɛ ka gɛlɛya di k’a sɔrɔ fiyɛ be gɛlɛya di yɔrɔ yɛrɛ ma; u be baara sifa caaman kɛ. Nka, fiyɛ be se ka nɛgɛdaga nɔɔ ta nɛgɛdaga kɔnɔ, ka baara sirininw bɔ yen, k’u siri ani k’u bila ani ka yɔrɔ gwansanw bɔ nɛgɛdaga kɔfɛ. O yɔrɔ la, mɔgɔw ka teli ka min fara ɲɔgɔn kan, o ye nɛgɛkuru ye ani betɔn min be ni fiyɛ ye ani nɛgɛ tɛ min na. A be tɔnɔ caaman bɔ porofayiliw yɛlɛmani na, yɔrɔ min na nɛgɛ tɛ se ka tugu farakurun ɲɛda tilenbali dɔ kɔ nka betɔn fiyɛ be se k’o kɛ.

Jagaminan jalen ani ɲagaminin jiman: Fiber balls be bɔ yɔrɔ min na

Rebound ye sɔngɔ yiracogo tilennin ye min be sɔrɔ tunnel shotcrete kɔnɔ, ani a ka yɛlɛmani fɔlɔ tɛ fiyɛ ye nka a be kɛ cogo min na. O ɲagaminin jilaman kɔnɔ, o fɛɛn be jɛnsɛn ka ban pewu k’a to a be pɔnpe la ani accelerator be fara a kan nɛgɛkunbɛnnan na, o kama, mugu fanba ye ngalon nɛgɛw ye minw be minɛ ɲɔgɔn na ni pɔmu ye ani u be tigɛ n’u be panna. Dry mix ye o kɔfɛko ye: jii be fara a kan nɛgɛdaga la, jii ma bɔ ɲɔgɔn na ani fiyɛ be lajɛn ka kɛ nɛgɛdaga yɛrɛ yɛrɛ ye nɛgɛdaga kogo kan ani yɔrɔ minw na a be yɛlɛma, ani minw be se masafugula la, u dɔ be yɔrɔ lakolon to yen. A’ ye baara kɛcogo sugandi ka bɔ yɔrɔw n’a gɛrɛfɛ. Ka ɲɛsin fani 20 ka taga se milimɛtiri 30 ma tɛmɛyɔrɔ kelen kelen bɛɛ la, ɲagaminin jiman be fani gɛrɛntɛ ɲuman di min be ye ka ɲɛ; ka dɛmɛ wagati dɔɔni kɔnɔ, ka yɔrɔw labɛn teliya la ani ka yɔrɔ dɔw yɛlɛma yɔrɔnin kelen, ɲagaminin jalen be bɛn ka ɲɛ ani a be sɔn yɛlɛmanibaw ma. Wet mix be ni koo saba ye. Fiyɛri janya man kan ka tɛmɛ nɛgɛjuru yɔrɔ saba kan, o la fiyɛ milimɛtiri 50 min be nɛgɛjuru kɔnɔ milimɛtiri 65 kɔnɔ, o bena nɔgɔ bɔ. Accelerator dose be tugu seepage kɔ farakurun ɲɛfɛ, a ka ca kojugu a be kɛ yɔrɔ nɔgɔnin ye ani a ka dɔgɔ kojugu a b’a to a be yɛlɛma, ani cogo o cogo la, fibre be baara dabila. Aw ye nɛgɛkunbɛnnan to m 1 ka taga se mɛtɛrɛ 1,5 ma ka bɔ dugukolo sanfɛ ani ka furakisɛ firi ka tilen; angled spray be fiyɛw ni fiɲɛw labɛn ani a be anizotropiki yɔrɔ barikaman dɔ dilan. Kuran minɛ be suma ni pankurun kɔrɔbɔli ye EN 14488-3 kɔnɔ, ani sɔnni ye yɔrɔ ye min be doni-yɛlɛmani kuru jukɔrɔ sanni ka kɛ sɔngɔba kelen ye, min ka kan ka fɔ ka gwɛ kontra kɔnɔ.

Sɛgɛsɛgɛri saba minw kɛra site web nin kan, u sɔnna o ma

Ka sɔn fiyɛ shotcrete ma, o be koo saba lajɛ: a hakɛ, a tilancogo kelen ani a ka gɛlɛya. Dozi be sɛgɛsɛgɛ ni yɔrɔ dɔ ka sɛgɛsɛgɛli ye ani ka girinya, 10% kɔnɔ walima ka bɔ a la; ka kɛ kelen ye ni ɲɛda tigɛnin sɔgɔli ye ani k’a sɛgɛsɛgɛ, o min ka kan ka yira ko fiyɛri jɛnsɛnnin lo cogo kelen na ani yɔrɔ si tɛ yen min tɛ ni fiyɛri ye; gɛlɛya ni yiri kɔrɔbɔli ye min tɔgɔ fɔra dilan cogo la. Ka ɲɛsin modɛli, diamɛtiri, janya ani dozi ladililen ma, nɛgɛ fiyɛri fɛnw ɲɛɛ ka yɔrɔ min be weele ko tunnel ani mining, o be sɛrɛkiliw ni dozi minw be bɛn ɲɔgɔn ma, u be se ka nɔrɔ ɲɔgɔn na i n’a fɔ annexe technique.