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Bisa la'akari da matsalolin da ke akwai a cikin fasahar tari na siminti-ƙasa na al'ada, kamar rarraba ƙarfin jiki mara daidaituwa, babban tashin hankali na gini, da babban tasiri akan ingancin tari ta abubuwan ɗan adam, sabuwar fasaha ta DMP dijital micro-perturbation hudu- An ɓullo da tari na axis. A cikin wannan fasaha, raƙuman rawar soja guda huɗu na iya fesa slurry da iskar gas a lokaci ɗaya kuma suyi aiki tare da yadudduka masu yawa na yanke yankan kusurwa don yanke ƙasa yayin aikin samar da tari. Ƙaddamar da tsarin jujjuyawar sama zuwa ƙasa, yana magance matsalar rashin daidaituwar ƙarfin rarraba jikin tari, kuma Yana iya rage yawan amfani da siminti yadda ya kamata. Tare da taimakon tazarar da aka samu tsakanin bututu mai siffa ta musamman da ƙasa, slurry ɗin yana fitar da kansa da kansa, wanda ke samun ɗan damuwa na ƙasa a kusa da tari yayin aikin gini. Tsarin sarrafawa na dijital yana gane aikin gina tari mai sarrafa kansa, kuma yana iya saka idanu, rikodin da ba da gargaɗin farko don tsarin samar da tari a ainihin lokacin.
Gabatarwa
Ana amfani da tarin siminti-ƙasa da yawa a fagen aikin injiniya: kamar ƙarfafa ƙasa da labule masu hana ruwa a cikin ayyukan ramin tushe; ƙarfafa rami a cikin ramukan garkuwa da rijiyoyin jacking na bututu; jiyya na tushe na ƙasa mai rauni; hana zubar da ruwa a cikin ayyukan kiyaye ruwa da kuma shinge a cikin wuraren da ake zubar da ruwa da sauransu. A halin yanzu, yayin da ma'auni na ayyukan ya zama girma da girma, abubuwan da ake bukata don ingantaccen gini da kare muhalli na tarin siminti-ƙasa da aka haɗa sun zama mafi girma. Bugu da ƙari, don saduwa da ƙayyadaddun buƙatun kare muhalli da ke kewaye da aikin, dole ne a sarrafa ingancin gine-ginen tulin hada-hadar siminti da ƙasa. Kuma rage tasirin gine-gine a kan muhallin da ke kewaye ya zama abin bukata cikin gaggawa.
Gine-ginen tulin hada-hadar ya fi yin amfani da ɗigon haɗe-haɗe don haɗa siminti da ƙasa a wurin don samar da wani tudu tare da takamaiman ƙarfi da aikin hana gani. Siminti da aka fi amfani da shi da tulin haɗa ƙasa sun haɗa da axis guda ɗaya, axis biyu, axis uku da siminti mai axis biyar da takin ƙasa. Waɗannan nau'ikan tulun haɗaɗɗun suma suna da hanyoyin feshi da haɗawa daban-daban.
Rukunin haɗaɗɗun axis guda ɗaya yana da bututu guda ɗaya ne kawai, ana fesa ƙasa, kuma ana yin hadawar ta ƴan ƙaramin ruwan wukake. Wannan yana iyakance ta adadin bututun rawar soja da kuma cakuduwar ruwan wukake, kuma ingancin aikin yana da ƙasa kaɗan;
Tarin haɗe-haɗe na biaxial ya ƙunshi bututun rawar soja 2, tare da bututu daban-daban a tsakiya don grouting. Bututun bututu guda biyu ba su da aikin grouting saboda raƙuman rawar da ke bangarorin biyu suna buƙatar a maimaita su don yin slurry ɗin da aka fesa daga bututun slurry na tsakiya a cikin kewayon jirgin. Rarraba iri ɗaya ce, don haka ana buƙatar tsarin "feshi biyu da motsa jiki guda uku" yayin aikin ginin katako na biyu, wanda ke hana aikin ginin katako mai ninki biyu, kuma daidaiton tsarin tari shima ba shi da kyau. Matsakaicin zurfin ginin yana da kusan mita 18 [1];
Tulin haɗaɗɗun axis guda uku ya ƙunshi bututun rawar soja guda uku, tare da fesa ƙorafi a bangarorin biyu da matse iska da aka fesa a tsakiya. Wannan tsari zai sa ƙarfin tsakiyar tari ya zama ƙasa da na bangarorin biyu, kuma jikin jikin zai sami raunin haɗin gwiwa a cikin jirgin; Bugu da kari, tulin hada-hadar axis guda uku Simintin ruwa da ake amfani da shi yana da girman gaske, wanda ke rage karfin tari zuwa wani matsayi;
Rukunin haɗaɗɗun axis guda biyar yana dogara ne akan axis biyu da axis uku, yana ƙara adadin sandunan rawar soja don inganta ingantaccen aiki, da haɓaka ingancin jikin tari ta hanyar ƙara yawan haɗaɗɗun ruwan wukake [2-3]. . Tsarin fesa da hadawa ya bambanta da na farko biyu. Babu bambanci.
Damuwar da ke tattare da kasar da ke kewaye yayin da ake gina tulin hada-hadar siminti-kasa ya fi faruwa ne ta hanyar matsewa da tsagewar da kasa ke haifarwa sakamakon cuku-cuku-cukun cakudewar ruwan, da shiga da tsagawar simintin slurry [4-5]. Saboda babban tashin hankali da ke haifar da ginin tulin haɗaɗɗun al'ada, lokacin da ake yin gini a cikin mahalli masu mahimmanci kamar wuraren da ke kusa da gundumomi da gine-ginen da aka karewa, yawanci yakan zama dole a yi amfani da mafi tsada duk-zagaye high-pressure jet grouting (Hanya MJS) ko guda ɗaya. -axis mixing piles (Hanyar IMS) da sauran micro-structures. Hanyoyin gini masu tayar da hankali.
Bugu da kari, yayin da ake gina tulin hada-hada na al'ada, mahimman sigogin gini irin su nutsewa da saurin ɗaga bututun rawar soja da adadin harbin yana da alaƙa da ƙwarewar masu aiki. Wannan kuma ya sa ya zama da wahala a iya gano tsarin gine-ginen da ake hadawa da kuma haifar da bambance-bambance a cikin ingancin tarin.
Domin warware matsalolin tulin hada-hadar siminti da ƙasa na al'ada kamar rarraba ƙarfi mara daidaituwa, manyan rikice-rikicen gine-gine, da abubuwa da yawa na tsoma bakin ɗan adam, ƙungiyar injiniya ta Shanghai ta ƙera sabuwar fasaha ta dijital micro-perturbation huɗu. Wannan labarin zai gabatar da dalla-dalla game da halaye da tasirin aikin injiniya na fasaha mai hadewa ta axis hudu a cikin fasahar hada-hadar harbi, sarrafa tashin hankali da ginin sarrafa kansa.
1, DMP dijital micro-perturbation hudu-axis hadawa tari kayan aiki
The DMP-I dijital micro-perturbation hudu-axis hadawa tari direban kayan aiki yafi kunshi wani hadawa tsarin, a tari frame tsarin, a gas samar da tsarin, wani atomatik pulping da ɓangaren litattafan almara samar da tsarin, da dijital kula da tsarin gane sarrafa kansa tari yi gini. .
2. Mixing da spraying tsari
Bututun rawar soja guda hudu suna sanye da bututun harbi da bututun jet a ciki. Kamar yadda aka nuna a cikin hoto na 2, shugaban haki zai iya fesa slurry da matse iska a lokaci guda yayin aikin samar da tulin, tare da guje wa matsalolin da ake samu sakamakon feshin wasu bututun hakowa da fesa wasu bututun. Matsalar rashin daidaituwa ta rarraba ƙarfin tari akan jirgin; saboda kowane bututun rawar soja yana da shiga tsakani na iska mai matsewa, ana iya rage juriya ta haɗawa gabaɗaya, wanda ke taimakawa wajen gina ƙasa mai ƙarfi da ƙasa mai yashi, kuma yana iya yin siminti da ƙasa gauraya. Bugu da ƙari, iska mai matsa lamba na iya hanzarta aiwatar da tsarin carbonation na siminti da ƙasa kuma inganta ƙarfin farkon siminti da ƙasa a cikin tari mai haɗawa.
Haɗin raƙuman ruwa na DMP-I dijital micro-perturbation mai haɗawa tari mai lamba huɗu suna sanye take da yadudduka 7 na ruwan wukake mai canzawa. Adadin cakuda ƙasa mai aya ɗaya zai iya kaiwa sau 50, wanda ya zarce sau 20 da ƙayyadaddun ya ba da shawarar; da hadawa rawar soja bit An sanye take da bambance-bambancen ruwan wukake wanda ba ya juya tare da rawar soja bututu a lokacin da tari samuwar tsari, wanda zai iya yadda ya kamata hana samuwar yumbu laka bukukuwa. Wannan ba zai iya kawai ƙara yawan adadin ƙasa hadawa sau, amma kuma hana samuwar manyan ƙasa clods a lokacin hadawa tsari, don haka tabbatar da The uniformity na slurry a cikin ƙasa.
DMP-I dijital micro-perturbation hudu-axis hadawa tari rungumi dabi'ar up-saukar hira shotcrete fasaha kamar yadda aka nuna a Figure 3. Akwai biyu yadudduka na shotcrete mashigai a kan hadawa rawar soja shugaban. Lokacin da ya nutse, ana buɗe tashar tashar harbi ta ƙasa. An fesa slurry ɗin gabaɗaya tare da ƙasa a ƙarƙashin aikin babban haɗe ruwa. Lokacin da aka ɗaga shi, ƙananan tashar jiragen ruwa na shotcrete yana rufe kuma a lokaci guda Bude tashar jiragen ruwa na sama don slurry da aka fitar daga tashar gunite na sama za a iya haɗuwa da ƙasa a ƙarƙashin aikin ƙananan ruwan wukake. Ta wannan hanyar, slurry da ƙasa za a iya zuga gaba ɗaya yayin duk hanyar nutsewa da motsawa, wanda ke ƙara haɓaka daidaiton siminti da ƙasa a cikin zurfin zurfin jikin tari, kuma yadda ya kamata ya warware matsalar axis biyu da uku. -axis hadawa tari fasaha a cikin rawar soja bututu dagawa tsari. Matsalar ita ce slurry ɗin da aka fesa daga tashar allura ta ƙasa ba za a iya motsa shi gabaɗaya ta hanyar motsa ruwan ba.
3.Micro-hargitsi yi iko
Sashin giciye na bututun rawar soja na DMP-I dijital micro-perturbation mai haɗawa tari mai lamba hudu siffa ce mai kama da siffa ta musamman. Lokacin da bututun haƙori ya juya, nutse ko ɗagawa, za a samar da magudanar ruwa da tashar shaye-shaye a kusa da bututun. Lokacin motsawa, Lokacin da matsa lamba na cikin ƙasa ya wuce damuwa a cikin wurin, za a fitar da slurry ta dabi'a tare da tashar slurry da ke kewaye da bututun rawar soja, don haka guje wa matsi na ƙasa wanda ya haifar da tarawar iskar gas kusa da slurry gas. hadawa rawar soja.
DMP-I dijital micro-perturbation hudu-axis hadawa tari direba sanye take da wani karkashin kasa matsa lamba tsarin a kan rawar soja bit, wanda sa idanu canje-canje a karkashin kasa matsa lamba a ainihin lokacin a lokacin dukan tari samuwar tsari, da kuma tabbatar da cewa karkashin kasa matsa lamba ne. sarrafawa a cikin madaidaicin kewayon ta hanyar daidaita matsi mai slurry gas. A lokaci guda, ɓangarorin bambance-bambancen da aka tsara suna iya hana yumbu yadda ya kamata daga riko da bututun rawar soja da samuwar ƙwallan laka, da kuma rage juriya da hargitsin ƙasa yadda ya kamata.
4. Mai hankali gini iko
The DMP-I dijital micro-perturbation hudu-axis hadawa tari direban kayan aiki sanye take da dijital kula da tsarin, wanda zai iya gane sarrafa kansa tari yi, rikodin yi tsarin sigogi a hakikanin lokaci, da kuma saka idanu da kuma samar da farkon gargadi a lokacin tari samuwar tsari.
Tsarin sarrafawa na dijital na iya kammala aikin haɗin gwiwar ta atomatik bisa ma'aunin ginin da aka ƙaddara ta hanyar gwaji. Yana iya sarrafa nutsewa da ɗagawa ta tsarin haɗawa ta atomatik, slurry kwarara daidai da saurin samuwar tari a cikin sassan bisa ga rarraba madaidaicin ƙasa, daidaita matsin jet bisa ga ƙimar ƙimar ƙasa, da sarrafa ayyukan gini. kamar jujjuyawar sama da ƙasa na feshi grouting. Wannan yana rage tasirin abubuwan ɗan adam akan ingancin gini na tari mai haɗawa yayin aikin ginin, kuma yana haɓaka aminci da daidaiton ingancin tari.
Tare da taimakon madaidaicin na'urori masu auna firikwensin da aka sanya akan kayan aiki, tsarin sarrafa dijital na iya saka idanu kan mahimman sigogin gini kamar saurin haɗawa, ƙarar fesa, matsa lamba da kwarara, da matsin ƙasa, kuma yana iya ba da faɗakarwa da wuri don yanayin gini mara kyau, haɓaka aminci. na hadawa tari yi tsari. Bayyana gaskiya da lokacin warware matsalar. A lokaci guda, tsarin kula da dijital na iya yin rikodin ma'auni na dukan tsarin gine-gine da kuma ƙaddamar da ma'auni na ginin da aka yi rikodin zuwa dandalin girgije a cikin ainihin lokaci ta hanyar tsarin sadarwa don sauƙi da dubawa da dubawa, tabbatar da gaskiya da amincin bayanan da aka samar. a lokacin aikin ginin.
5, Ginin fasaha da sigogi
The DMP dijital micro-hargitsi hudu-axis hadawa tari tsarin aiwatar da yafi hada da gini shiri, gwaji tari yi da m tari yi. Dangane da sigogin ginin da aka samu daga ginin tarin gwajin gwaji, tsarin sarrafa kayan aikin dijital ya fahimci ginin tari ta atomatik. Haɗe tare da ƙwarewar injiniya na ainihi, ana iya zaɓar sigogin ginin da aka nuna a cikin Table 1. Daban-daban da takin haɗaɗɗun al'ada, rabon ruwa-zuwa-ciminti da ake amfani da shi don haɗakar axis huɗu ya bambanta lokacin nutsewa da ɗagawa. Matsakaicin ruwa-zuwa-ciminti da aka yi amfani da shi don nutsewa shine 1.0 ~ 1.5, yayin da rabon ruwa da siminti don ɗagawa shine 0.8 ~ 1.0. Lokacin nutsewa da motsawa, slurry siminti yana da rabon siminti mafi girma, kuma slurry yana da isasshen tasiri mai laushi akan ƙasa, wanda zai iya rage juriya mai ƙarfi yadda ya kamata; Lokacin ɗagawa, tun da ƙasan da ke cikin tari ta gauraya, ƙaramin siminti na ruwa zai iya ƙara ƙarfin tari yadda ya kamata.
Yin amfani da tsarin hada-hadar harbin da aka ambata a sama, tari na axis guda huɗu na iya cimma sakamako iri ɗaya da tsarin na al'ada tare da abun ciki na siminti na 13% zuwa 18%, saduwa da buƙatun injiniya don ƙarfi da rashin ƙarfi na tari mai hadewar ƙasa. , kuma a lokaci guda kawo canje-canje saboda siminti Amfanin rage yawan adadin shine cewa ƙasa mai maye gurbin yayin aikin ginin kuma an rage shi daidai. Inclinometer da aka sanya a kan bututun rawar soja yana magance matsala mai wuyar sarrafawa ta tsaye yayin gina tarin siminti-ƙasa na yau da kullun. Ma'auni a tsaye na jikin tari mai gaɗi huɗu zai iya kaiwa 1/300.
6. Aikin Injiniya
Domin ci gaba da nazarin ƙarfin jiki na DMP dijital micro-perturbation hudu-axis hadawa tari da kuma tasiri na tari-kafa tsari a kan kewaye ƙasa, filin gwaje-gwaje da aka za'ayi a daban-daban stratigraphic yanayi. Ƙarfin siminti da samfuran asalin ƙasa da aka auna akan kwanakin 21st da 28th na samfuran hadaddiyar giyar da aka tattara sun kai 0.8 MPa, wanda ya cika buƙatun siminti da ƙarfin ƙasa a aikin injiniya na ƙasa na al'ada.
Idan aka kwatanta da takin siminti-ƙasa na gargajiya, abin da aka saba amfani da shi duka-zagaye mai ɗaukar nauyin jet grouting (Hanya MJS) da ɗimbin rikice-rikice (Hanya ta IMS) na iya rage ƙaura a kwance na ƙasan da ke kewaye da matsugunin ƙasa wanda ya haifar da ginin tari. . . A cikin aikin injiniya, hanyoyin biyu na sama ana gane su azaman dabarun gini na rikice-rikice kuma galibi ana amfani da su a ayyukan injiniya tare da manyan buƙatu don kare muhalli.
Tebu na 2 yana kwatanta bayanan sa ido na ƙasan da ke kewaye da nakasar ƙasa wanda DMP dijital micro-perturbation huɗu mai haɗawa tari, hanyar ginin MJS da hanyar ginin IMS yayin aikin gini. A lokacin aikin ginin micro-perturbation hudu-axis mixing tari, a nisa na mita 2 daga jikin tari Ana iya sarrafa matsuguni a kwance da haɓakar ƙasa a tsaye zuwa kusan 5 mm, wanda yayi daidai da hanyar ginin MJS. da kuma hanyar gina IMS, kuma zai iya samun ɗan ƙaranci ga ƙasan da ke kewaye da tari yayin aikin ginin tari.
A halin yanzu, DMP dijital micro-disturbance hudu axis tara tara an yi nasarar amfani da iri daban-daban na ayyuka kamar ƙarfafa tushe da kuma harsashin ramin injiniya a Jiangsu, Zhejiang, Shanghai da sauran wurare. Haɗuwa da bincike da haɓakawa da aikace-aikacen injiniya na fasahar haɗaɗɗun axis huɗu, an haɗa "Technical Standard for Micro-Disturbance Four-axis Mixing Pile" (T/SSCE 0002-2022) (Shanghai Civil Engineering Society Group Standard). ya haɗa da kayan aiki, ƙira, gini da gwaji, da dai sauransu. An gabatar da takamaiman buƙatu don daidaita aikace-aikacen DMP dijital micro-perturbation fasaha mai haɗawa huɗu-axis.
Lokacin aikawa: Satumba-22-2023