Kusinthana kafukufuku | DMP-I digito yaying'ono-perturbation yolumikizana ndi mizere inayi yosakaniza kafukufuku waukadaulo ndi chitukuko ndi kugwiritsa ntchito

Chidule

Poona mavuto amene alipo mu ochiritsira simenti-nthaka kusakaniza mulu luso, monga kugawa m'njira mulu mphamvu mulu thupi, chisokonezo chachikulu yomanga, ndi zimakhudza kwambiri mulu khalidwe ndi zinthu za anthu, luso latsopano la DMP digito yaying'ono-perturbation anayi- mulu wosakaniza wa axis unapangidwa. Mu ukadaulo uwu, zitsulo zinayi zobowola zimatha kupopera slurry ndi gasi nthawi imodzi ndikugwira ntchito ndi zigawo zingapo za masamba odulira mosiyanasiyana kuti adule nthaka panthawi yopanga milu. Kuphatikizidwa ndi njira yopopera yopopera mmwamba-pansi, imathetsa vuto la kugawa kwamphamvu kwa thupi la mulu, ndipo Imatha kuchepetsa kugwiritsa ntchito simenti moyenera. Mothandizidwa ndi kusiyana komwe kumapangidwa pakati pa chitoliro chapadera chobowola ndi dothi, slurry imatulutsidwa mwadzidzidzi, yomwe imakwaniritsa kusokonezeka pang'ono kwa dothi lozungulira muluwo panthawi yomanga. Dongosolo loyang'anira digito limazindikira kupanga kokhazikika kwa milu, ndipo imatha kuyang'anira, kulemba ndi kupereka chenjezo loyambirira pakupanga milu munthawi yeniyeni.

Mawu Oyamba

Milu yosakaniza ya simenti-dothi imagwiritsidwa ntchito kwambiri m'munda wa zomangamanga: monga kulimbikitsa nthaka ndi makatani oteteza madzi m'mapulojekiti a dzenje la maziko; kulimbitsa dzenje mu ngalande za zishango ndi zitsime zotsekera zitoliro; maziko mankhwala ofooka nthaka zigawo; anti-seepage m'makoma osungira madzi makoma komanso zotchinga m'malo otayirako ndi zina zambiri. Pakalipano, pamene kukula kwa ntchito kukukulirakulira, zofunikira zomanga bwino ndi kuteteza chilengedwe cha milu yosakaniza simenti-dothi zakhala zikukwera kwambiri. Kuonjezera apo, kuti akwaniritse zofunikira zowonjezereka zowonongeka kwa chilengedwe kuzungulira ntchito yomangamanga, khalidwe la zomangamanga la simenti-dothi losakaniza milu liyenera kuyendetsedwa. Ndipo kuchepetsa chiyambukiro cha zomangamanga pa malo ozungulira kwakhala chosowa chachangu.

Kumanga milu yosakaniza makamaka kumagwiritsa ntchito kusakaniza kubowola kusakaniza simenti ndi nthaka mu situ kupanga mulu ndi mphamvu inayake ndi ntchito yotsutsa-seepage. Milu yosakaniza ya simenti ndi dothi yomwe imagwiritsidwa ntchito nthawi zambiri imaphatikizapo olamulira amodzi, olamulira awiri, olamulira atatu ndi asanu ndi simenti ndi milu yosakaniza nthaka. Mitundu yosakaniza iyi imakhala ndi njira zosiyanasiyana zopopera ndi kusakaniza.

Mulu wosakaniza wa axis umodzi uli ndi chitoliro chimodzi chokha chobowola, pansi ndi sprayed, ndipo kusakaniza kumachitidwa kudzera muzitsulo zochepa. Izi zimachepa ndi kuchuluka kwa mapaipi obowola ndi masamba osakaniza, ndipo magwiridwe antchito ndi otsika;

Mulu wosanganiza wa biaxial uli ndi mapaipi awiri obowola, okhala ndi chitoliro chosiyana pakati pa grouting. Mipope iwiri yobowola ilibe ntchito yobowola chifukwa zobowola mbali zonse ziyenera kugwedezeka mobwerezabwereza kuti slurry apopedwe kuchokera pakati pa slurry chitoliro mkati mwa ndege. Kugawa kuli yunifolomu, kotero kuti "kupopera kuwiri ndi kugwedeza katatu" kumafunika panthawi yomanga shaft iwiri, yomwe imalepheretsa kumanga bwino kwa shaft iwiri, komanso kufanana kwa milu ya miluyo kumakhala kovuta. Kuzama kwakukulu komanga ndi pafupifupi mamita 18 [1];

Mulu wosanganiza wa ma axis atatu uli ndi mapaipi atatu obowola, okhala ndi grout opopera mbali zonse ndi mpweya woponderezedwa pakati. Kukonzekera kumeneku kudzachititsa kuti mphamvu ya mulu wapakati ikhale yaying'ono kusiyana ndi ya mbali ziwiri, ndipo thupi la mulu lidzakhala ndi maulalo ofooka pa ndege; kuonjezera apo, mulu wosakanikirana wa katatu Simenti yamadzi yomwe imagwiritsidwa ntchito ndi yaikulu, yomwe imachepetsa mphamvu ya thupi la mulu pamlingo wina;

Mulu wosanganikirana wa ma axis asanu umachokera pa olamulira awiri ndi atatu, ndikuwonjezera kuchuluka kwa ndodo zosakaniza zobowola kuti ziwongolere bwino ntchito, ndikuwongolera kuchuluka kwa mulu wa mulu mwa kuwonjezera kuchuluka kwa masamba osakaniza [2-3] . Njira yopopera mankhwala ndi kusakaniza ndi yosiyana ndi ziwiri zoyambirira. Palibe kusiyana.

Kusokonezeka kwa nthaka yozungulira pomanga milu yosakaniza simenti-dothi makamaka chifukwa cha kufinya ndi kusweka kwa nthaka chifukwa cha kugwedezeka kwa masamba osakaniza, ndi kulowa ndi kugawanika kwa simenti slurry [4-5]. Chifukwa cha chisokonezo chachikulu chomwe chimadza chifukwa chomanga milu yosanganikirana, pomanga m'malo ovuta kwambiri monga malo oyandikana ndi ma municipalities ndi nyumba zotetezedwa, nthawi zambiri zimakhala zofunikira kugwiritsa ntchito mtengo wokwera kwambiri wa jet grouting (njira ya MJS) kapena imodzi. -axis kusakaniza milu (njira ya IMS) ndi zina zazing'ono. Njira zomangira zosokoneza.

Kuonjezera apo, pomanga milu yosakanikirana yosakanikirana, zofunikira zomanga zomanga monga kumira ndi kukweza liwiro la chitoliro chobowola ndi kuchuluka kwa shotcrete zimagwirizana kwambiri ndi zochitika za ogwira ntchito. Izi zimapangitsanso kuti zikhale zovuta kufufuza ntchito yomanga milu yosakaniza ndikupangitsa kusiyana kwa khalidwe la milu.

Pofuna kuthetsa mavuto a milu ochiritsira simenti-dothi kusanganikirana monga kugawa mphamvu mulu wosagwirizana, chisokonezo chachikulu yomanga, ndi zinthu zambiri kusokoneza anthu, Shanghai zomangamanga gulu apanga latsopano digito yaying'ono perturbation anayi olamulira kusakaniza mulu luso luso. Nkhaniyi ifotokoza mwatsatanetsatane za mawonekedwe ndi uinjiniya ntchito zotsatira za anayi olamulira kusanganikirana mulu luso luso kusanganikirana shotcrete, yomanga kusokoneza ulamuliro ndi yodzipangira zomangamanga.

1, DMP digito yaying'ono-perturbation inayi-olamulira kusakaniza mulu zida

DMP-I digito yaying'ono-perturbation yosakanikirana ndi zida zoyendetsa milu zinayi makamaka imakhala ndi makina osakanikirana, makina opangira milu, makina opangira gasi, makina opangira pulping ndi zamkati, ndi makina owongolera digito kuti azindikire kupanga milu yodzichitira. .

2, Kusakaniza ndi kupopera mbewu mankhwalawa

Mapaipi anayi obowola ali ndi mapaipi a shotcrete ndi mapaipi a jet mkati. Monga momwe chithunzi 2 chikuwonetsera, mutu wobowola ukhoza kupopera mpweya ndi mpweya woponderezedwa panthawi imodzimodzi popanga milu, kupeŵa mavuto omwe amadza chifukwa cha kupopera mbewu ndi kupopera mapaipi ena obowola. Vuto la kugawa kosagwirizana kwa mphamvu ya mulu pa ndege; chifukwa chitoliro chilichonse chobowola chimakhala ndi kulowererapo kwa mpweya wothinikizidwa, kusakanikirana kosakanikirana kumatha kuchepetsedwa, komwe kumathandiza pomanga munthaka zolimba kwambiri komanso mchenga wamchenga, ndipo zimatha kupanga simenti ndi kusakaniza nthaka. Komanso, wothinikizidwa mpweya akhoza imathandizira carbonation ndondomeko ya simenti ndi nthaka ndi kusintha oyambirira mphamvu ya simenti ndi nthaka mu kusakaniza mulu.

Zosakaniza zosakaniza za DMP-I digito micro-perturbation 4-axis kusakaniza mulu woyendetsa zili ndi zigawo 7 za masamba osakaniza osinthasintha. Chiwerengero cha kusanganikirana kwa nthaka ndi mfundo imodzi kumatha kufika nthawi 50, kupitirira nthawi 20 zomwe zimalimbikitsidwa ndi ndondomeko; Kusakaniza kubowola pang'ono Kumakhala ndi masamba osiyanitsira omwe samazungulira ndi chitoliro chobowola panthawi yopanga milu, yomwe ingalepheretse kupanga mipira yamatope yadothi. Izi sizingangowonjezera kuchuluka kwa nthawi zosakaniza dothi, komanso zimalepheretsa mapangidwe a dothi lalikulu panthawi yosakaniza, motero kuonetsetsa kuti slurry ikufanana m'nthaka.

DMP-I digito yaying'ono-perturbation anayi olamulira kusakaniza mulu utenga mmwamba-pansi kutembenuka shotcrete luso monga momwe chithunzi 3. Pali zigawo ziwiri za madoko shotcrete pa kusakaniza kubowola mutu. Ikamira, doko lakumunsi la shotcrete limatsegulidwa. The sprayed slurry kwathunthu wosakaniza ndi nthaka pansi pa zochita za chapamwamba kusakaniza tsamba. Ikakwezedwa, doko lapansi la shotcrete limatsekedwa ndipo nthawi yomweyo Tsegulani doko lapamwamba la gunite kuti slurry yotulutsidwa kuchokera kumtunda wapamwamba wa gunite ikhoza kusakanikirana bwino ndi nthaka pansi pa zochita za masamba apansi. Mwanjira imeneyi, slurry ndi nthaka zimatha kugwedezeka panthawi yonse ya kumira ndi kugwedezeka, zomwe zimawonjezera kufanana kwa simenti ndi dothi mkati mwa kuya kwa thupi la mulu, ndikuthetsa bwino vuto la olamulira awiri ndi atatu. -olamulira kusakaniza mulu luso mu kubowola chitoliro kukweza ndondomeko. Vuto ndiloti slurry wopopera kuchokera pansi pa jekeseni sangathe kugwedezeka kwathunthu ndi masamba ogwedeza.

3, Kuwongolera kwazing'ono zosokoneza

The mtanda gawo la kubowola chitoliro cha DMP-I digito micro-perturbation anayi-olamulira kusakaniza mulu dalaivala ndi chowulungika-ngati mwapadera mawonekedwe oboola pakati. Pamene chitoliro chobowola chikuzungulira, kumira kapena kukweza, slurry kutulutsa ndi mpweya wotulutsa mpweya udzapangidwa mozungulira chitoliro chobowola. Pamene kusonkhezera, Pamene kupsyinjika kwamkati kwa nthaka kupitirira kupsyinjika kwa in-situ, slurry idzatulutsidwa mwachibadwa pamodzi ndi slurry discharge channel mozungulira chitoliro chobowola, potero kupewa kufinya kwa nthaka chifukwa cha kudzikundikira kwa mpweya wa slurry pafupi ndi kusakaniza kubowola pang'ono.

DMP-I digito micro-perturbation 4-axis kusanganikirana mulu woyendetsa ali ndi zida zowunikira pansi pa nthaka pobowola, zomwe zimayang'anira kusintha kwa kuthamanga kwapansi panthaka mu nthawi yeniyeni pakupanga milu yonse, ndikuwonetsetsa kuti kuthamanga kwapansi panthaka kuli kulamulidwa mkati mwa njira yoyenera posintha kuthamanga kwa gasi wa slurry. Pa nthawi yomweyi, masamba osiyanitsa omwe amapangidwira amatha kuteteza dongo kuti lisagwirizane ndi chitoliro chobowola komanso kupanga mipira yamatope, komanso kuchepetsa kusakaniza kusakaniza ndi kusokonezeka kwa nthaka.

4, Kuwongolera mwanzeru zomanga

DMP-I digito yaying'ono-perturbation yosakanikirana ndi zida zoyendetsa mulu wa digito ili ndi makina owongolera a digito, omwe amatha kuzindikira kupanga milu yodzichitira, kujambula magawo omanga mu nthawi yeniyeni, ndikuwunika ndikupereka chenjezo loyambirira panthawi yakupanga milu.

Dongosolo loyang'anira digito limatha kumaliza ntchito yomanga milu yosakanikirana potengera magawo omanga omwe amatsimikiziridwa ndi milu yoyeserera. Imatha kuwongolera kumira ndi kukweza kwa makina osakanikirana, kufananiza kwa slurry komanso kuthamanga kwa milu mu magawo malinga ndi kugawa kwa dothi loyima, kusintha kuthamanga kwa jet molingana ndi kuchuluka kwa kuthamanga kwapansi, ndikuwongolera njira zomanga. monga kutembenuka kwa mmwamba ndi pansi kwa kupopera kwa grouting. Izi zimachepetsa kwambiri zotsatira za zinthu zaumunthu pa khalidwe la zomangamanga la mulu wosakaniza panthawi yomanga, ndikuwongolera kudalirika ndi kusasinthasintha kwa khalidwe la mulu wosakaniza.

Mothandizidwa ndi masensa mwatsatanetsatane anaika pa zipangizo, dongosolo kulamulira digito akhoza kuwunika zofunika zomanga magawo monga kusakaniza liwiro, kupopera mankhwala voliyumu, kuthamanga slurry ndi otaya, ndi kuthamanga mobisa, ndipo akhoza kupereka chenjezo la zinthu zachilendo zomangamanga, kuonjezera chitetezo. ya kusanganikirana mulu kumanga. Kuwonetsetsa komanso nthawi yake yothetsa mavuto. Panthawi imodzimodziyo, makina olamulira a digito akhoza kulemba magawo a ntchito yonse yomanga ndikuyika zolemba zomangira zojambulidwa ku nsanja yamtambo mu nthawi yeniyeni kupyolera mu gawo la intaneti kuti muwone mosavuta ndi kuyang'anitsitsa, kuonetsetsa kuti zowona ndi chitetezo cha deta yopangidwa. panthawi yomanga.

5. Zomangamanga ndi magawo

Njira yomanga milu ya DMP ya digito yosokoneza ma axis anayi makamaka imaphatikizapo kukonzekera zomanga, kumanga milu yoyeserera ndi kumanga milu yovomerezeka. Malinga ndi magawo omanga omwe adapezeka pakumanga mulu woyeserera, makina owongolera omanga a digito amazindikira zopanga zokha za muluwo. Kuphatikizidwa ndi zochitika zenizeni zaumisiri, magawo omanga omwe akuwonetsedwa mu Gulu 1 akhoza kusankhidwa. Mosiyana ndi milu yosakanikirana yosakanikirana, chiŵerengero cha madzi ndi simenti chomwe chimagwiritsidwa ntchito pa mulu wosakaniza wa ma axis anayi ndi osiyana pamene akumira ndi kukweza. Madzi ndi simenti omwe amagwiritsidwa ntchito pomira ndi 1.0 ~ 1.5, pamene madzi ndi simenti pokweza ndi 0.8 ~ 1.0. Pamene kumira ndi kusonkhezera, slurry ya simenti imakhala ndi chiŵerengero chachikulu cha simenti yamadzi, ndipo slurry imakhala ndi mphamvu yochepetsetsa yokwanira pa nthaka, yomwe ingathe kuchepetsa kukana koyambitsa matenda; pokweza, popeza nthaka mkati mwa mulu wa mulu wasakanizidwa, kagawo kakang'ono ka simenti yamadzi imatha Kuonjezera mphamvu ya thupi la mulu.

Pogwiritsa ntchito zomwe tatchulazi shotcrete kusanganikirana ndondomeko, anayi olamulira kusanganikirana mulu akhoza kukwaniritsa zotsatira zofanana ndi ndondomeko ochiritsira ndi simenti zili 13% mpaka 18%, kukwaniritsa uinjiniya zofunika mphamvu ndi impermeability wa simenti-dothi kusakaniza milu. , ndipo panthawi imodzimodziyo kubweretsa kusintha chifukwa cha simenti Ubwino wochepetsera mlingo ndi kuti nthaka yowonjezera panthawi yomanga imachepetsedwa moyenerera. The inclinometer anaika pa kubowola chitoliro amathetsa vuto la zovuta kulamulira verticality pomanga ochiritsira simenti-dothi kusakaniza milu. Kuyima kwake kwa mulu wosakanikirana wa ma axis anayi kumatha kufika 1/300.

6, Ntchito Zaumisiri

Kuti mupitirize kuphunzira mulu mphamvu ya thupi la DMP digito yaying'ono-perturbation anayi olamulira kusanganikirana mulu ndi zotsatira za mulu kupanga ndondomeko pa nthaka ozungulira, zoyesa kumunda kunachitika mu zinthu zosiyanasiyana stratigraphic. Mphamvu ya simenti ndi nthaka pachimake zitsanzo anayeza pa 21 ndi 28 masiku anasonkhanitsa kusanganikirana mulu pachimake zitsanzo anafika 0,8 MPa, amene amakwaniritsa zofunika simenti ndi mphamvu nthaka mu zomangamanga ochiritsira mobisa.

Poyerekeza ndi milu yachikhalidwe ya simenti-dothi losanganikirana, njira yomwe imagwiritsidwa ntchito ponseponse yothamanga kwambiri ya jet grouting (njira ya MJS) ndi milu yophatikizira ya micro-disturbance (IMS njira) imatha kuchepetsa kusamuka kopingasa kwa dothi lozungulira komanso kukhazikika pamtunda komwe kumachitika chifukwa cha milu. . . Muzochita zauinjiniya, njira ziwirizi zimadziwika ngati njira zomangira zosokoneza pang'ono ndipo nthawi zambiri zimagwiritsidwa ntchito pama projekiti aumisiri omwe ali ndi zofunika kwambiri pakuteteza chilengedwe.

Table 2 ikufanizira deta yowunikira nthaka yozungulira ndi kuwonongeka kwa nthaka komwe kumachitika chifukwa cha DMP digital micro-perturbation four-axis mixing mulu, njira yomanga ya MJS ndi njira yomanga ya IMS panthawi yomanga. Pa ntchito yomanga ya micro-perturbation anayi olamulira kusanganikirana mulu, pa mtunda wa mamita 2 kuchokera mulu thupi Kusamutsidwa yopingasa ndi ofukula Kukweza nthaka akhoza lizilamulira pafupifupi 5 mm, amene ali ofanana ndi njira yomanga MJS. ndi njira yomangira ya IMS, ndipo imatha kusokoneza pang'ono dothi lozungulira muluwo panthawi yomanga milu.

Pakali pano, DMP digito yaying'ono-zosokoneza milu inayi kusakaniza milu akhala bwino ntchito mitundu yosiyanasiyana ya ntchito monga kulimbitsa maziko ndi maziko dzenje zomangamanga ku Jiangsu, Zhejiang, Shanghai ndi malo ena. Kuphatikiza kafukufuku ndi chitukuko ndi ntchito uinjiniya wa luso anayi olamulira kusanganikirana mulu luso, ndi "Technical Standard kwa yaying'ono-chisokonezo Four-olamulira Kusakaniza Mulu" (T/SSCE 0002-2022) (Shanghai Civil Engineering Society Gulu Standard) linalembedwa, amene zikuphatikizapo zipangizo, kamangidwe, zomangamanga ndi kuyezetsa, etc. Zofunika zenizeni zaperekedwa kuti standardize ntchito DMP digito micro-perturbation anayi-olamulira kusakaniza mulu luso.

Nthawi yotumiza: Sep-22-2023