Mapoinzi akakosha ekushandisa pile foundation test

Nguva yekutanga yekuyedzwa kwepile foundation inofanirwa kusangana neanotevera mamiriro:

(1) Simba rekongiri remurwi wakaedzwa harifanire kunge rakaderera pane 70% yesimba rekugadzira uye harifanirwe kunge rakaderera pane 15MPa, uchishandisa strain nzira uye acoustic transmission nzira yekuyedza;

(2) Uchishandisa nzira yekuchera yakakosha yekuyedza, zera rekongiri remurwi wakaedzwa rinofanira kusvika mazuva makumi maviri nemasere, kana simba reiyo yakaporeswa test block pasi pemamiriro akafanana anofanirwa kusangana nezvinodiwa zvesimba rekugadzira;

(3) Nguva yekuzorora isati yasvika pakuyedzwa kwejecha: hwaro hwejecha hahungave husingasviki mazuva manomwe, silt hwaro haizove isingasviki mazuva gumi, ivhu rakabatana risingasviki mazuva gumi nemashanu, uye ivhu rakabatana haringaite. mazuva asingasviki 25.

Murwi wekuchengetedza madhaka unofanirwa kuwedzera nguva yekuzorora.

Sarudzo maitiro eakaongororwa mirwi yekugamuchirwa kuyedzwa:

(1) Mirwi ine mhando yekuvaka inomutsa mubvunzo;

(2) Mirwi ine mamiriro asina kujairika enzvimbo;

(3) Sarudza mamwe Class III mirwi yekutakura kugona kugamuchira;

(4) Bato rekugadzira rinoona zvakakosha mirwi;

(5) Mirwi ine unyanzvi hwokuvaka hwakasiyana;

(6) Zvinokurudzirwa kusarudza zvakafanana uye zvisina kujairika maererano nemitemo.

Paunenge uchiitisa bvunzo dzekugamuchirwa, zvinokurudzirwa kuti utange waongorora kuvimbika kwemuviri wemurwi, uchiteverwa nekutakura chiyero chekuyedza.

Kuyedzwa kwekuvimbika kwemuviri wemurwi kunofanirwa kuitwa mushure mekucherwa kwegomba rekutanga.

Kuvimbika kwemurwi wemurwi wakaiswa muzvikamu zvina: Mirwi yeKirasi I, mirwi yeKirasi II, mirwi yeKirasi III, uye mirwi yeKirasi IV.

Type I pile body is intact;

Mapiritsi eKirasi II ane hurema hudiki mumutumbi wemurwi, izvo zvisingazokanganisa yakajairika kutakura kugona kwemurwi chimiro;

Pane hurema huri pachena mumurwi wemurwi weClass III mirwi, iyo ine mhedzisiro pane yemaitiro ekutakura kugona kwemuviri wemurwi;

Pane hurema hwakakomba mumurwi wemuviri weClass IV mirwi.

Hunhu hunokosha hweiyo vertical compressive kutakura kugona kwemurwi mumwe chete hunofanirwa kutorwa se50% yeiyo yekupedzisira vertical compressive kutakura kugona kwemurwi mumwe.

Hunhu hunokosha hweiyo yakatwasuka yekudhonza-kunze inotakura simba yemurwi mumwechete inofanira kutorwa se50% yeyekupedzisira yakatwasuka yekudhonza-kunze inotakura simba remurwi mumwe chete.

Kutemerwa kwehunhu hwekukosha kweiyo yakatwasuka kutakura simba remurwi mumwechete: chekutanga, kana murwi usingatenderwe kutsemuka kana chiyero chekusimbisa cheiyo cast-in-place pile body iri pasi pe0.65%, 0.75 times the horizontal. mutoro wakakomba uchatorwa;

Chechipiri, kune precast yakasimbiswa kongiri mirwi, simbi mirwi, uye yakakandwa-mu-nzvimbo mirwi ine reinforcement reshiyo isingasviki 0.65%, mutoro unoenderana neyakachinjika kusimuka pamurwi wedhizaini kumusoro uchatorwa se 0.75 nguva (yakatwasuka. kukosha kwekutamisa: 6mm yezvivakwa zvine hanya nekutama kwakatwasuka, 10mm kune zvivakwa zvisingaite kutama kwakatwasuka, kusangana nezvinodiwa zvekuramba zvemurwi wemurwi).

Paunenge uchishandisa core drilling method, nhamba uye nzvimbo zvinodiwa kune imwe neimwe yakaongororwa murwi ndeyotevera: mirwi ine dhayamita isingasviki 1.2m inogona kuva nemakomba 1-2;

Murwi une dhayamita 1.2-1.6m unofanira kuva nemakomba maviri;

Mirwi ine dhayamita yakakura kudarika 1.6m inofanira kuva nemakomba matatu;

Nzvimbo yekuchera inofanira kunge yakaenzana uye yakarongeka yakarongeka mukati mehuwandu hwe (0.15 ~ 0.25) D kubva pakati pemurwi.