Ulwakhiwo lwe-steel sheet pile cofferdam yiprojekthi eyenziwa emanzini okanye kufutshane namanzi, ejolise ekudaleni indawo eyomileyo nekhuselekileyo yokwakha. Ukwakhiwa okungaqhelekanga okanye ukusilela ekuchongeni ngokuchanekileyo impembelelo yokusingqongileyo efana nomgangatho womhlaba, ukuhamba kwamanzi, uxinzelelo lobunzulu bamanzi, njl.
Inkqubo ephambili kunye namanqaku olawulo lokhuseleko lwentsimbi yokwakhiwa kwe-cofferdam sheet sheet:
I. Inkqubo yokwakha
1. Ukulungiselela ukwakhiwa
○ Unyango lwesiza
Iqonga lokwakha lokuzalisa kufuneka lidityaniswe umaleko ngumaleko (ubukhulu obucetywayo obucetyiswayo ngu-≤30cm) ukuqinisekisa ukuba umthamo wokuthwala uhlangabezana neemfuno zokusebenza komatshini.
Ukuthambeka komsele wokuhambisa amanzi kufuneka kube yi-≥1%, kwaye itanki yentlenga kufuneka imiselwe ukunqanda ukuvaleka kwentlenga yentlenga.
○ Ukulungiselela izinto eziphathekayo
Ukukhetha imfumba yamaphepha entsimbi: Khetha uhlobo lwengqumba ngokwengxelo yokwakheka komhlaba (efana nohlobo lweLarsen IV lomhlaba othambileyo kunye nohlobo lwe-U lomaleko wegrabile).
Jonga ukuthembeka kwesitshixo: Faka ibhotolo okanye isitywina kwangaphambili ukunqanda ukuvuza.
2. Umlinganiselo kunye noyilo
Sebenzisa isitishi esipheleleyo sokumisa ngokuchanekileyo, setha iimfumba zolawulo rhoqo kwi-10m, kwaye ujonge i-axis yoyilo kunye nokuphambuka kokuphakama (impazamo evumelekileyo ≤5cm).
3. Ufakelo lwesakhelo sesikhokelo
Isithuba phakathi kwemiqadi yentsimbi yentsimbi ephindwe kabini yi-1 ~ 2cm enkulu kunobubanzi beemfumba zeshiti lentsimbi ukuze kuqinisekiswe ukuba ukuphambuka kokuma nkqo kungaphantsi kwe-1%.
Imiqadi yesikhokelo kufuneka ilungiswe nge-welding yensimbi okanye i-bolting ukuphepha ukufuduka ngexesha lokubethelwa kwe-vibration.
4. Ukufakwa kwemfumba yeshiti lentsimbi
○ Ulandelelwano lokuqhuba lwemfumba: Qala ukusuka kwingqumba yekona, vala isithuba ecaleni kwicala elide ukuya embindini, okanye sebenzisa “isimbo sesikrini” ukwakhiwa kweqela (10~20 iimfumba kwiqela ngalinye).
○ Ulawulo lobuchwephesha:
Ukuphambuka komgangatho wemfumba yokuqala ngu-≤0.5%, kwaye imfumba elandelayo ilungiswa ngokuthi "ukuseta ukuqhuba".
○ Izinga lokuqhuba kwemfumba: ≤1m/min kumhlaba othambileyo, kunye nejethi yamanzi anoxinzelelo oluphezulu iyafuneka ukunceda ukuzika kumaleko omhlaba oqinileyo.
○ Unyango lokuvala: Ukuba umsantsa oseleyo awunakufakwa kwiimfumba eziqhelekileyo, sebenzisa iimfumba ezinokwakheka okukhethekileyo (ezifana neengqumba zewedge) okanye weld ukuvala.
5. Ukwembiwa komngxuma wesiseko kunye nokukhupha amanzi
○ Ukwembiwa okulayered (umaleko ngamnye ≤2m), inkxaso njengokwembiwa, isithuba senkxaso yangaphakathi ≤3m (inkxaso yokuqala yi-≤1m ukusuka phezulu emhadini).
○ Inkqubo yokuhanjiswa kwamanzi: Isithuba phakathi kwemithombo yamanzi yi-20~30m, kwaye iimpompo ezingaphantsi kwamanzi (umyinge wokuhamba ≥10m³/h) zisetyenziselwa ukumpompa rhoqo.
6. Ukugcwaliswa ngasemva kunye nokutsalwa kwemfumba
Ukuzaliswa ngasemva kufuneka kuhlanganiswe ngokulinganayo kwimigangatho (i-compaction degree ≥ 90%) ukuphepha ukuguqulwa kwe-cofferdam ngenxa yoxinzelelo lwe-unilateral.
Ulandelelwano lokutsalwa kweemfumba: susa phakathi ukuya kumacala omabini ngezithuba, kwaye utofe amanzi okanye isanti ngaxeshanye ukunciphisa ukuphazamiseka komhlaba.
II. Ulawulo loKhuseleko
1. Ukulawulwa koMngcipheko
○ Ukuchasana nokubhukuqa: Ukubekwa kweliso kwexesha lokwenyani loguquko lwecofferdam (nqumamisa ulwakhiwo kwaye ubethelele xa umyinge wotyekelo ungaphezu kwe-2%).
○ Ukuchasana nokuvuza: Emva kokufumba, xhoma umnatha ngaphakathi ukutshiza igrout okanye ubeke i-geotextile engangenwa ngamanzi.
○ Ukuchasana nokurhaxwa: Misa iintsimbi zokugada (ubude ≥ 1.2m) kunye neebuoys/iintambo kwiqonga lokusebenza.
2. Ukusabela kwiimeko ezizodwa zokusebenza
○ Impembelelo yolwandle: Misa umsebenzi kwiiyure ezi-2 phambi kwamaza amakhulu kwaye ujonge ukutywinwa kwe-cofferdam.
○ Isilumkiso semvula enkulu: Gquma umngxuma wesiseko kwangethuba kwaye uqalise izixhobo zokukhupha amanzi ezigciniweyo (ezifana neempompo zamandla aphezulu).
3. Ulawulo lokusingqongileyo
○ Unyango lwentlenga yodaka: Misela itanki yentlenga enemigangatho emithathu kwaye uyikhuphe emva kokuhlangabezana nemigangatho.
○ Ulawulo lwengxolo: Nciphisa izixhobo zengxolo ephezulu ngexesha lokwakha ebusuku (ezifana nokusebenzisa abaqhubi bemfumba yoxinzelelo oluzinzileyo endaweni yoko).
Ⅲ. Ireferensi yeeparamitha eziphambili
IV. Iingxaki eziqhelekileyo kunye nonyango
1. Ukutenxa kwemfumba
Unobangela: zizinto eziqinileyo kumaleko womhlaba okanye ulandelelwano olungalunganga lokufumba.
Unyango: Sebenzisa "iimfumba zokulungisa" ukuguqula inaliti okanye ukuzaliswa kweemfumba zendawo.
2. Ukuvuza kwetshixa
Unyango: Gcwalisa iingxowa zodongwe ngaphandle kwaye utofe i-polyurethane ekhupha ugwebu ngaphakathi ukuze ivalwe.
3. Ukuphakamisa umngxuma wesiseko
Uthintelo: Khawulezisa ukwakhiwa kwepleyiti engezantsi kwaye unciphise ixesha lokuvezwa.
V. Isishwankathelo
Ukwakhiwa kwee-cofferdams ze-steel sheet pimple kufuneka kugxininise "i-stable (stable structure), i-dense (ukutywinwa phakathi kweemfumba), kunye nokukhawuleza (ukuvalwa ngokukhawuleza)", kunye nokulungelelanisa inkqubo ngokudibanisa neemeko ze-geological. Kwiindawo ezinzulu zamanzi okanye i-strata enzima, "inkxaso yokuqala kunye nokugrumba" okanye "i-cofferdam edibeneyo" (i-steel sheet pile + udonga oluchasene ne-concrete anti-seepage) iskimu sinokumkelwa. Ukwakhiwa kwayo kuqulethe indibaniselwano yamandla kunye namandla. Ibhalansi egqibeleleyo phakathi komntu kunye nendalo inokuqinisekisa inkqubela phambili egudileyo yokwakha kunye nokunciphisa umonakalo kunye nokuchithwa kwemithombo yendalo.
If you have any further questions or demands, please feel free to contact Ms. Wendy. wendy@jxhammer.com
whatsapp/wechat: + 86 183 5358 1176
Ixesha lokuposa: Mar-10-2025