Cov txiaj ntsig ntawm cov ntawv hlau hauv cov txheej txheem siv yog dab tsi?

Tus thawj coj ntawmpawg hlau ntawvyog ua los ntawm ntoo lossis hlau cam khwb cia thiab lwm yam khoom siv, ua raws li cov ntawv hlau tsuas yog ua tiav nrog cov ntawv hlau. Thaum ntxov xyoo pua 20th, nrog rau kev txhim kho ntawm cov thev naus laus zis tsim cov hlau dov, tib neeg paub tias cov ntawv hlau tsim los ntawm cov txheej txheem dov muaj tus nqi qis, zoo ruaj khov, kev ua tau zoo tag nrho, thiab tuaj yeem siv ntau zaus. Hauv kev tshawb nrhiav ntawm lub tswv yim no, thawj daim ntawv hlau kub dov tau yug los hauv ntiaj teb.

Cov ntawv hlau pawgmuaj cov txiaj ntsig tshwj xeeb: lub zog siab, lub teeb yuag, zoo Waterproof; Muaj zog durability, kev pabcuam lub neej txog li 20-50 xyoo; Rov siv dua, feem ntau siv tau 3-5 zaug; Kev tiv thaiv ib puag ncig zoo kawg nkaus, hauv kev tsim kho tuaj yeem txo qhov ntau ntawm cov av thiab cov pob zeb siv, tiv thaiv cov peev txheej av zoo; Muaj lub luag haujlwm muaj zog ntawm kev pabcuam thaum muaj xwm txheej ceev, tshwj xeeb tshaj yog hauv kev tswj dej nyab, kev tawg, kev tawg, kev cawm neeg hauv av thiab kev pabcuam thaum muaj xwm txheej ceev, cov nyhuv yog ceev heev; Kev tsim kho yooj yim, lub sijhawm tsim kho luv dua, thiab tus nqi tsim kho tsawg dua.

Tsis tas li ntawd xwb, cov hlau sheet pile tuaj yeem daws tau thiab daws tau ntau yam teeb meem thaum lub sijhawm khawb av. Kev siv cov hlau sheet pile tuaj yeem muab kev nyab xeeb tsim nyog, thiab (kev cawm neeg thaum muaj kev puas tsuaj) raws sijhawm; Yuav txo tau qhov chaw xav tau; Tsis raug rau huab cua; Thaum siv cov hlau sheet pile, cov txheej txheem nyuaj ntawm kev kuaj xyuas cov khoom siv lossis kev ua haujlwm ntawm lub kaw lus tuaj yeem yooj yim; Xyuas kom meej tias nws hloov tau yooj yim, sib pauv tau zoo.

Nws muaj ntau yam haujlwm thiab qhov zoo tshwj xeeb, yog li cov hlau ntawv pawg siv tau ntau yam, xws li hauv cov qauv ruaj khov ntawm lub tsev, siv tau rau chaw nres nkoj, chaw thauj khoom, chaw tiv thaiv dej ntws, chaw nres nkoj, rooj vag thiab lwm yam; Ntawm cov qauv ib ntus, nws siv tau los kaw lub roob, nthuav lub ntug dej ib ntus, txiav dej ntws, tsim choj cofferdam, tso cov kav dej loj, khawb av ib ntus, khaws dej, khaws phab ntsa xuab zeb, thiab lwm yam. Hauv kev tiv thaiv dej nyab thiab cawm neeg, nws siv tau rau kev tswj dej nyab, tiv thaiv av qeeg, tiv thaiv kev tawg thiab tiv thaiv xuab zeb quickening.