Fomu Yophatikizira Bollard

Ikani mtengowo molingana ndi malo apakati pa muluwo, ndipo jambulani mzere wozungulira ndi laimu, kenako gwirani dzenje kapena chofukula kuti muike dzenje, ikani mu chivundikiro chachitsulo, ndikukanikiza chingwe chokokera muluwo choyezedwa, kuti malo apakati a chivundikirocho akhale ofanana ndi malo oyezedwa ndi olinganizidwa a muluwo. Malo apakati ndi ofanana, ndipo malo oyima ndi opingasa a chivundikirocho ayenera kukonzedwa ndi nyundo yolumikizira. Kuthamanga kwa kupendekera sikuyenera kupitirira 1%, ndipo kupotoka sikuyenera kupitirira 50ram. Mukakwirira chivundikirocho, malo ozungulira ayenera kudzazidwa ndi dongo lapamwamba, ndikukanikizidwa mofanana m'magawo. M'mimba mwake wa mkati mwa chivundikirocho ayenera kudzazidwanso. Chiyenera kukhala chachikulu 20-40cm kuposa kukula kwa muluwo, ndipo kuya kwa kuyikapo konse ndi 200-400cm. Mukakwirira chivundikirocho, chimakhala chokwera 30cm kuposa nthaka yachilengedwe, ndipo malo otulukira matope amatsegulidwa pamwamba, moyang'anizana ndi ngalande yamatope. Muzochitika zapadera, kuya kwa chidebecho kungawonjezeke, ndipo mphamvu yeniyeni ya matope ingawonjezeke (matope angatsanuliridwe mu dongo), ndipo kugwedezeka kungachedwe. Chepetsani bwino madzi omwe ali mu chidebecho. Ngati m'mphepete mwa chidebecho choteteza chavumbulidwa ndi madzi, malo ozungulira akhoza kudzazidwa ndi dongo kuti alimbikitse chidebecho choteteza. Kutsika kwakukulu ndi kusamuka kuyenera kukonzedwanso ndikuyikidwanso kuti kuteteze chidebecho; ngati khoma la dzenje lobowoledwa litatuluka, likhoza kubwezeretsedwanso kukhala dongo kapena potaziyamu wobiriwira (ufa wa matope) kuti lipange matope kuti liwonjezere kuchuluka kwa matope; chidebecho chitakwiriridwa, chiyenera kugwiritsidwa ntchito. Hammer yolunjika ndi rula yamatabwa, yesani mtunda kuchokera m'mphepete mwa chidebecho mpaka pakati pa malo a muluwo molunjika (kapena mbali yabwino komanso yopingasa ya njira), ndikupanga zolemba zoyambirira zomangira. Kupotoka, kupotoka sikuyenera kupitirira 5em. Ndipo milu ya alonda imakwiriridwa mozungulira pakamwa pa alonda (amaikidwa mopingasa ndipo amajambula zizindikiro zinayi), kuti woyendetsa ndi woyang'anira khalidwe athe kugwiritsa ntchito njira yopingasa kuti adziwe malo apakati a muluwo.