Utshintshiselwano ngophando | DMP-I digital micro-perturbation ezine-axis ukuxuba imfumba ubuchwepheshe uphando kunye nophuhliso kunye nokusetyenziswa

Isishwankathelo

Ngenxa yeengxaki ezikhoyo kwiteknoloji yemfumba yesamente eqhelekileyo yokuxuba umhlaba, njengokusasazwa kokungalinganiyo kwamandla omzimba wemfumba, ukuphazamiseka kolwakhiwo olukhulu, kunye nempembelelo enkulu kumgangatho wemfumba ngezinto zabantu, itekhnoloji entsha ye-DMP yedijithali micro-perturbation ezine- i-axis yokuxuba imfumba yaphuhliswa. Kule teknoloji, ii-drill bits ezine ziyakwazi ukutshiza i-slurry kunye negesi ngaxeshanye kwaye zisebenze kunye neengqimba ezininzi ze-angle-angle cutting blades ukusika umhlaba ngexesha lenkqubo yokubumba. Ixhaswe yinkqubo yokutshiza yokuguqula i-up-down, isombulule ingxaki yokungalingani kwamandla okusasazwa kwemfumba, kwaye Inokunciphisa ngokufanelekileyo ukusetyenziswa kwesamente. Ngoncedo lomsantsa owenziwe phakathi kombhobho wokugaya owenziwe ngendlela ekhethekileyo kunye nomhlaba, i-slurry ikhutshwa ngokuzimeleyo, efezekisa ukuphazamiseka okuncinci komhlaba ojikeleze imfumba ngexesha lenkqubo yokwakha. Inkqubo yolawulo lwedijithali iqonda ulwakhiwo oluzenzekelayo lokubunjwa kwemfumba, kwaye inokubeka iliso, irekhode kwaye inike isilumkiso kwangethuba ngenkqubo yokuqulunqa imfumba ngexesha langempela.

Intshayelelo

Iimfumba zokuxuba i-cement-soil zisetyenziswa ngokubanzi kwintsimi yolwakhiwo lobunjineli: njengokuqiniswa komhlaba kunye namakhethini angenamanzi kwiiprojekthi zomgodi wesiseko; ukuqiniswa kwemingxuma kwiitonela zekhaka kunye nemigodi yokukhupha imibhobho; unyango lwesiseko seendawo ezibuthathaka zomhlaba; anti-seepage kwiindonga zeeprojekthi zokugcinwa kwamanzi kunye nemiqobo kwiindawo zokulahla kunye nokunye. Okwangoku, njengoko isikali seeprojekthi sikhula kwaye sikhula, iimfuno zobuchule bokwakha kunye nokukhuselwa kokusingqongileyo kweemfumba zesamente-zomhlaba zokuxuba ziye zaba phezulu kwaye phezulu. Ukongeza, ukuze kuhlangatyezwane neemfuno ezikhulayo zokusingqongileyo ezintsonkothileyo malunga nolwakhiwo lweprojekthi, umgangatho wokwakhiwa kweemfumba zesamente-zomhlaba wokuxuba kufuneka ulawulwe. Kwaye ukunciphisa impembelelo yokwakha kwindawo engqongileyo ibe yimfuno engxamisekileyo.

Ukwakhiwa kweemfumba zokuxuba ngokuyinhloko kusebenzisa i-drill drill bit ukuxuba i-samente kunye nomhlaba kwi-situ ukwenza imfumba enamandla athile kunye nokusebenza kwe-anti-seepage. I-samente esetyenziswa ngokuqhelekileyo kunye neemfumba zokuxuba umhlaba ziquka i-single-axis, i-double-axis, i-axis emithathu kunye ne-five-axis cement kunye neemfumba zokuxuba umhlaba. Ezi ntlobo zeemfumba zokuxuba nazo zineendlela ezahlukeneyo zokutshiza kunye nokuxuba.

Ingqungquthela yokuxuba i-axis enye inombhobho we-drill enye kuphela, i-bottom iyatshizwa, kwaye ukuxuba kwenziwa ngenani elincinci lamagqabi. Oku kukhawulelwe ngenani lemibhobho yokubhobhoza kunye neeblade zokuxuba, kwaye ukusebenza kakuhle kuncinci;

Imfumba yokuxuba i-biaxial iqulethe i-2 drill pipes, kunye nombhobho we-slurry ohlukeneyo phakathi kwe-grouting. Imibhobho emibini yokubhola ayinawo umsebenzi wokugrumba ngenxa yokuba amasuntswana okubhola kumacala omabini kufuneka avuselelwe ngokuphindaphindiweyo ukwenza uludaka lutshizwe kumbhobho wodaka oluphakathi ngaphakathi koluhlu lwenqwelomoya. Ukuhanjiswa kufana, ngoko ke inkqubo "yezitshizi ezimbini kunye nezihlunu ezintathu" ziyafuneka ngexesha lokwakhiwa kwe-shaft ephindwe kabini, ethintela ukusebenza kakuhle kokwakhiwa kwe-shaft ephindwe kabini, kunye nokufana kokwakheka kweemfumba nako kubi kakhulu. Ubukhulu bobunzulu bokwakha bumalunga neemitha ezili-18 [1];

Imfumba yokuxuba i-axis emithathu iqulethe imibhobho emithathu yokugaya, kunye ne-grout efafazwe kumacala omabini kunye nomoya ocinezelweyo otshizwe phakathi. Olu lungelelaniso luya kubangela ukuba amandla emfumba ephakathi abe yincinci kuneyamacala amabini, kwaye umzimba wemfumba uya kuba neekhonkco ezibuthathaka kwindiza; ukongeza, inqwaba yokuxuba i-axis emithathu I-samente yamanzi esetyenzisiweyo inkulu kakhulu, enciphisa amandla omzimba wemfumba ukuya kwinqanaba elithile;

Imfumba yokuxuba i-axis emihlanu isekelwe kwi-axis emibini kunye ne-axis emithathu, yongeza inani leentonga zokudibanisa ukuze kuphuculwe ukusebenza kakuhle, kunye nokuphucula umgangatho womzimba wemfumba ngokunyusa inani leentsimbi zokuxuba [2-3] . Inkqubo yokutshiza kunye nokuxuba ihluke kwizinto ezimbini zokuqala. Akukho mahluko.

Ukuphazamiseka kumhlaba ojikelezileyo ngexesha lokwakhiwa kweemfumba ze-sement-soil ezixutywe kakhulu zibangelwa ukukhahlela kunye nokuqhekeka komhlaba okubangelwa ukuxutywa kwamagqabi okuxuba, kunye nokungena kunye nokuqhekeka kwe-sement slurry [4-5]. Ngenxa yokuphazamiseka okukhulu okubangelwa kukwakhiwa kweemfumba zokuxuba eziqhelekileyo, xa kwakhiwa kwiindawo ezinovakalelo ezifana nezibonelelo zikamasipala ezikufutshane kunye nezakhiwo ezikhuselweyo, ngokuqhelekileyo kuyimfuneko ukusebenzisa i-jet grouting ebiza kakhulu yonke i-high-high-pressure jet grouting (indlela ye-MJS) okanye enye. -i-axis mixing piles (indlela ye-IMS) kunye nezinye i-micro-structures. Iindlela zokwakha eziphazamisayo.

Ukongezelela, ngexesha lokwakhiwa kweemfumba zokuxuba eziqhelekileyo, iiparitha zokwakha eziphambili ezifana nokucwila kunye nokuphakamisa isantya sombhobho we-drill kunye nenani le-shotcrete lihambelana ngokusondeleyo namava abaqhubi. Oku kwenza kube nzima ukulandelela inkqubo yokwakhiwa kweemfumba zokuxuba kwaye kubangele ukungafani kumgangatho weemfumba.

Ukuze kusonjululwe iingxaki zeemfumba zokuxubana zesamente-zomhlaba eziqhelekileyo ezifana nokuhanjiswa kwamandla emfumba engalinganiyo, ukuphazamiseka kolwakhiwo olukhulu, kunye nezinto ezininzi zokuphazamiseka kwabantu, uluntu lwaseShanghai lobunjineli luye lwaphuhlisa iteknoloji entsha yedijithali yokuxuba i-axis emine yokuxuba. Eli nqaku liza kwazisa ngokweenkcukacha iimpawu kunye neziphumo zesicelo sobunjineli be-four-axis yokuxuba i-teknoloji ye-shotcrete yokuxuba, ukulawula ukuphazamiseka kokwakhiwa kunye nokwakhiwa okuzenzekelayo.

1, DMP yedijithali micro-perturbation ezine-axis ukuxuba imfumba izixhobo

I-DMP-I digital micro-perturbation ezine-axis ezine-axis zokuxuba izixhobo zomqhubi we-axis ikakhulu zibandakanya inkqubo yokuxuba, inkqubo yesakhelo semfumba, inkqubo yokubonelela ngegesi, inkqubo yokuhambisa i-pulping kunye ne-pulp, kunye nenkqubo yolawulo lwedijithali ukuqonda ukwakhiwa kwemfumba ezenzekelayo. .

2. Inkqubo yokuxuba kunye nokutshiza

Imibhobho ye-drill emine ixhotyiswe ngemibhobho ye-shotcrete kunye nemibhobho ye-jet ngaphakathi. Njengoko kubonisiwe kuMfanekiso 2, intloko yokomba inokutshiza uludaka kunye nomoya ocinezelweyo ngaxeshanye ngexesha lenkqubo yokwenza imfumba, ithintela iingxaki ezibangelwa kukutshizwa kweminye imibhobho yokubhobhoza kunye nokutshizwa kweminye imibhobho yokomba. Ingxaki yokusasazwa okungalinganiyo kwamandla emfumba kwinqwelomoya; ngenxa yokuba umbhobho ngamnye we-drill unokungenelela komoya oxinyiweyo, ukuchasana kokuxuba kungancitshiswa ngokupheleleyo, oku luncedo kulwakhiwo kwiindawo ezinzima zomhlaba kunye nomhlaba oyisanti, kwaye unokwenza i-samente kunye nokuxuba umhlaba. Ukongezelela, umoya ocinezelweyo unokukhawulezisa inkqubo ye-carbonation ye-samente kunye nomhlaba kunye nokuphucula amandla okuqala e-samente kunye nomhlaba kwimfumba yokuxuba.

Iingcingo zokudibanisa i-DMP-I digital micro-perturbation ezine-axis yokuxuba umqhubi wemfumba ixhotyiswe ngamaleko angama-7 e-variable-angle mixing blades. Inani lokuxutywa komhlaba wenqaku elinye linokufikelela kumaxesha angama-50, ligqithise kakhulu amaxesha angama-20 acetyiswayo ngokuchazwa; i-drill drill bit Ixhotywe ngamacangca ahlukeneyo angajikelezi kunye nombhobho we-drill ngexesha lenkqubo yokuqulunqa imfumba, enokuthintela ngokufanelekileyo ukubunjwa kweebhola zodaka zodongwe. Oku akunakukwandisa kuphela inani lamaxesha okuxuba umhlaba, kodwa kwakhona kuthintele ukubunjwa kwamagaqa amakhulu omhlaba ngexesha lenkqubo yokuxuba, ngaloo ndlela uqinisekisa ukufana kwe-slurry emhlabeni.

I-DMP-I digital micro-perturbation ye-four-axis yokuxuba imfumba ithatha iteknoloji ye-shotcrete yokuguqula i-up-down njengoko kubonisiwe kwi-Figure 3. Kukho iileyile ezimbini zezibuko ze-shotcrete kwintloko yokuxuba. Xa izika, i-shotcrete port esezantsi iyavulwa. I-slurry e-sprayed ixutywe ngokupheleleyo kunye nomhlaba phantsi kwesenzo se-blade yokuxuba ephezulu. Xa iphakanyisiwe, i-port ephantsi ye-shotcrete ivaliwe kwaye ngexesha elifanayo Vula i-gunite port ephezulu ukwenzela ukuba i-slurry ekhutshwe kwi-port ye-gunite ephezulu inokuxutywa ngokupheleleyo kunye nomhlaba phantsi kwesenzo samagqabi aphantsi. Ngale ndlela, i-slurry kunye nomhlaba unokushukunyiswa ngokupheleleyo ngexesha lonke lenkqubo yokutshona kunye nokuxubha, nto leyo ephucula ngakumbi ukufana kwesamente kunye nomhlaba ngaphakathi koluhlu lobunzulu bomzimba wemfumba, kwaye kusombulula ngempumelelo ingxaki ye-axis ephindwe kabini kunye nesithathu. -i-axis yokuxuba iteknoloji yemfumba kwinkqubo yokunyusa umbhobho wokubhobhoza. Ingxaki kukuba i-slurry etshizwe ukusuka kwindawo yokutofa esezantsi ayinakushukunyiswa ngokupheleleyo ngamacangca ashukumisayo.

3, Ulawulo lolwakhiwo lokuphazamiseka kancinci

I-cross-section of the drill pipe ye-DMP-I digital micro-perturbation ezine-axis yokuxuba umqhubi wemfumba yi-oval-like shape ekhethekileyo. Xa umbhobho wokubhobhoza ujikeleza, ucwina okanye uphakamisa, ukukhutshwa kwe-slurry kunye nomjelo wokukhupha uya kwenziwa malunga nombhobho wokubhobhoza. Xa uvuselela, Xa uxinzelelo lwangaphakathi lomhlaba ludlula uxinzelelo lwe-in-situ, i-slurry iya kukhutshwa ngokwemvelo ecaleni komjelo wokukhupha i-slurry ejikeleze umbhobho wokubhobhoza, ngaloo ndlela uthintele ukucudisa komhlaba okubangelwa kukuqokelelana koxinzelelo lwegesi eludaka kufutshane ne-slurry. ukuxuba drill bit.

I-DMP-I digital micro-perturbation ye-four-axis yokuxuba umqhubi wemfumba ixhotyiswe ngenkqubo yokubeka iliso yoxinzelelo lwangaphantsi komhlaba kwi-drill bit, ebeka esweni utshintsho kuxinzelelo oluphantsi komhlaba ngexesha lokwenyani ngexesha lenkqubo yonke yokuqulunqwa kwemfumba, kwaye iqinisekisa ukuba uxinzelelo oluphantsi komhlaba luhlala luhamba. kulawulwa ngaphakathi kuluhlu olufanelekileyo ngokulungisa uxinzelelo lwegesi oluludaka. Ngexesha elifanayo, ii-blades ezicwangcisiweyo zokwahlula zinokuthintela ngokufanelekileyo udongwe ukuba unamathele kumbhobho we-drill kunye nokwakhiwa kweebhola zodaka, kunye nokunciphisa ngokufanelekileyo ukuxhathisa ukuxuba kunye nokuphazamiseka komhlaba.

4, ulawulo lolwakhiwo olukrelekrele

I-DMP-I digital micro-perturbation ezine-axis zokuxuba izixhobo zomqhubi we-axis zixhotyiswe ngenkqubo yokulawula idijithali, enokuqonda ukwakhiwa kweemfumba ezizenzekelayo, iiparameters zenkqubo yokwakha irekhodi ngexesha langempela, kunye nokubeka iliso kunye nokubonelela ngesilumkiso kwangaphambili ngexesha lenkqubo yokuqulunqa.

Inkqubo yokulawula idijithali inokugqiba ngokuzenzekelayo ukwakhiwa kweemfumba zokuxuba ezisekelwe kwimimiselo yokwakha egqitywe yimfumba yovavanyo. Iyakwazi ukulawula ngokuzenzekelayo ukucwina kunye nokuphakanyiswa kwenkqubo yokuxuba, ukuhambelana nokuhamba kwe-slurry kunye nesantya sokubunjwa kwemfumba kumacandelo ngokusasazwa komgangatho womhlaba othe nkqo, ukulungelelanisa uxinzelelo lwejethi ngokwexabiso elimiselweyo loxinzelelo lomhlaba, kunye nokulawula iinkqubo zokwakha. njengoguqulo oluphezulu naphantsi lwe-spray grouting. Oku kunciphisa kakhulu impembelelo yezinto zomntu kumgangatho wokwakhiwa kwemfumba yokuxuba ngexesha lokwakha, kwaye iphucula ukuthembeka kunye nokuhambelana komgangatho wemfumba yokuxuba.

Ngoncedo lwee-sensor ezichanekileyo ezifakwe kwisixhobo, inkqubo yokulawula idijithali inokubeka iliso kwiiparamitha eziphambili zokwakha ezifana nesantya sokuxuba, umthamo wokutshiza, uxinzelelo lwe-slurry kunye nokuhamba, kunye noxinzelelo oluphantsi komhlaba, kwaye inokubonelela ngesilumkiso sokuqala kwiimeko ezingaqhelekanga zokwakha, ukwandisa ukhuseleko. yenkqubo yokwakha imfumba yokuxuba. Ukungafihli kunye nexesha elifanelekileyo lokusombulula ingxaki. Ngexesha elifanayo, inkqubo yokulawula idijithali inokurekhoda iiparitha zenkqubo yonke yokwakha kwaye ilayishe iiparitha zokwakha ezirekhodiweyo kwiqonga lelifu ngexesha langempela ngokusebenzisa imodyuli yenethiwekhi yokujonga lula kunye nokuhlola, ukuqinisekisa ukunyaniseka kunye nokhuseleko lwedatha eyenziweyo. ngexesha lenkqubo yokwakha.

5. Itekhnoloji yokwakha kunye neeparamitha

Inkqubo yokwakhiwa kwemfumba yedijithali ye-DMP yedijithali edibanisa iaxis emine ibandakanya ikakhulu ulungiselelo lolwakhiwo, ulwakhiwo lwemfumba yolingo kunye nolwakhiwo olusesikweni lwemfumba. Ngokweeparamitha zokwakha ezifunyenwe kulwakhiwo lwemfumba yovavanyo, inkqubo yolawulo lolwakhiwo lwedijithali iqonda ulwakhiwo oluzenzekelayo lwemfumba. Ngokudityaniswa namava okwenene obunjineli, iiparamitha zokwakha eziboniswe kwiThebhile 1 zingakhethwa. Ukwahluke kwiimfumba zokuxuba eziqhelekileyo, umlinganiselo wamanzi ukuya kwi-samente osetyenziselwa imfumba yokuxuba i-axis emine iyahluka xa ihla kwaye iphakamisa. Umlinganiselo wamanzi ukuya kwi-samente osetyenziselwa ukucwina ngu-1.0 ~ 1.5, ngelixa umlinganiselo wamanzi ukuya kwi-samente yokuphakamisa ngu-0.8 ~ 1.0. Xa ukucwila kunye nokugubha, i-sement slurry inomlinganiselo omkhulu wamanzi-samente, kwaye i-slurry inefuthe elaneleyo lokuthambisa emhlabeni, elinokunciphisa ngokufanelekileyo ukuchasana nokuvuselela; xa uphakamisa, ekubeni umhlaba ongaphakathi kwemfumba uxutywe, umlinganiselo omncinci wamanzi-samente unokonyusa ngokufanelekileyo amandla omzimba wemfumba.

Ukusebenzisa inkqubo yokuxuba i-shotcrete ekhankanywe ngasentla, i-axis-axis yokuxuba imfumba inokufezekisa umphumo ofanayo kunye nenkqubo eqhelekileyo kunye nomxholo wesamente we-13% ukuya kwi-18%, ukuhlangabezana neemfuno zobunjineli zamandla kunye nokunganyanzeki kweemfumba zokuxuba umhlaba we-samente. , kwaye ngexesha elifanayo ukuzisa utshintsho ngenxa yesamente Inzuzo yokunciphisa i-dosage kukuba umhlaba otshintshileyo ngexesha lenkqubo yokwakha nawo uyancitshiswa ngokufanelekileyo. I-inclinometer efakwe kumbhobho we-drill isombulula ingxaki yolawulo olunzima lwe-verticality ngexesha lokwakhiwa kweemfumba eziqhelekileyo ze-sement-soil mixing. Ubungakanani obulinganisiweyo bomzimba wemfumba we-axis ezine-axis ungafikelela kwi-1/300.

6, iiNkqubo zobuNjineli

Ukuze ufunde ngakumbi amandla omzimba we-DMP yedijithali micro-perturbation ezine-axis yokuxuba imfumba kunye nefuthe lenkqubo yokwenza imfumba kumhlaba ojikelezileyo, imifuniselo yasendle yenziwa kwiimeko ezahlukeneyo zestratigraphic. Amandla esamente kunye neesampulu ezingundoqo zomhlaba ezilinganiswe ngomhla wama-21 kunye neentsuku ze-28 zeesampuli eziqokelelweyo zemfumba yokuxuba zifikelele kwi-0.8 MPa, ehlangabezana neemfuno zesamente kunye namandla omhlaba kubunjineli obuqhelekileyo obuphantsi komhlaba.

Xa kuthelekiswa neemfumba zesamente-zomhlaba zokuxuba, eziqhele ukusetyenziswa kuzo zonke ezijikelezileyo zoxinzelelo oluphezulu lwejet grouting (indlela ye-MJS) kunye neengqumba zokuxuba eziphazamisayo ezincinci (indlela ye-IMS) inokunciphisa kakhulu ukufuduswa okuthe tye komhlaba ojikelezileyo kunye nokuhlaliswa komphezulu okubangelwa kukwakhiwa kwemfumba. . . Kumsebenzi wobunjineli, ezi ndlela zimbini zingasentla zibonwa njengeendlela zokwakha zokuphazamiseka kancinci kwaye zihlala zisetyenziswa kwiiprojekthi zobunjineli ezineemfuno eziphezulu zokukhuselwa kokusingqongileyo.

Itheyibhile 2 ithelekisa idatha yokubeka iliso yomhlaba ojikelezileyo kunye nokuguqulwa komhlaba okubangelwa yi-DMP digital micro-perturbation i-four-axis mixing pile, indlela yokwakha ye-MJS kunye nendlela yokwakha ye-IMS ngexesha lenkqubo yokwakha. Ngexesha lenkqubo yokwakhiwa kwe-micro-perturbation ye-four-axis mixing pile, kumgama weemitha ezi-2 ukusuka kumzimba wemfumba Ukufuduka okuthe tye kunye nokuphakanyiswa komhlaba okuthe tye kunokulawulwa malunga ne-5 mm, elingana nendlela yokwakha ye-MJS. kunye nendlela yokwakha ye-IMS, kwaye inokuphumeza ukuphazamiseka okuncinci kumhlaba ojikeleze imfumba ngexesha lenkqubo yokwakhiwa kwemfumba.

Okwangoku, i-DMP digital micro-disturbance micro-disturbance-four-axis piles isetyenziswe ngempumelelo kwiintlobo ezahlukeneyo zeeprojekthi ezifana nokuqiniswa kwesiseko kunye nobunjineli bomgodi wesiseko eJiangsu, Zhejiang, Shanghai nakwezinye iindawo. Ukudibanisa uphando kunye nophuhliso kunye nesicelo sobunjineli beteknoloji yemfumba yokuxuba i-axis emine, "uMgangatho weTechnical for Micro-Disturbance Four-axis Mixing Pile" (T / SSCE 0002-2022) (iShanghai Civil Engineering Society Society Group Standard) yaqulunqwa, eyathi yaqulunqwa. ibandakanya izixhobo, uyilo, ulwakhiwo novavanyo, njl. njl. Iimfuno ezithe ngqo ziye zabekwa phambili ukulinganisa ukusetyenziswa kwe-DMP yedijithali micro-perturbation iteknoloji yemfumba yokuxuba i-four-axis.

Ixesha lokuposa: Sep-22-2023