PP Biaxial Geogrid polypropylene geogrid rau txoj kev loj kev txhim kho
Khoom nta
PP biaxial geogrid yog ua los ntawm polymer los ntawm extrusion, phaj sib sau, xuas nrig ntaus cov txheej txheem thiab ces longitudinal thiab transverse stretching.Cov khoom siv muaj zog tensile zoo nyob rau hauv ob qho tib si longitudinal thiab transverse kev taw qhia, thiab cov qauv no tseem tuaj yeem muab lub zog muaj zog ntau dua thiab cov kab sib txuas zoo tshaj plaws hauv cov av, uas tsim nyog rau kev txhawb nqa ntawm thaj tsam loj ntawm cov kabmob mus tas li.
Hauv kev tsim khoom ntawm PP biaxial geogrid, polymers yuav raug kho dua tshiab thiab rov ua dua nrog rau cov txheej txheem cua sov thiab txuas ntxiv, uas ntxiv dag zog rau kev sib txuas ntawm cov saw hlau molecular thiab ua tiav lub hom phiaj ntawm kev txhim kho lawv lub zog.Nws elongation tsuas yog 10% ~ 15% ntawm thawj phaj.Yog tias cov pa roj carbon dub thiab lwm yam khoom siv los tiv thaiv kev laus ntxiv rau hauv geogrid, nws tuaj yeem ua kom muaj kev tiv thaiv zoo rau cov kua qaub, alkali, corrosion thiab kev laus.
| 1, Biaxial Geogrid tuaj yeem txhim kho kev muaj peev xwm ntawm lub hauv paus |
| 2, Biaxial Geogrid tuaj yeem tiv thaiv kev tawg thiab tawg |
| 3, Biaxial Geogrid yog qhov yooj yim rau kev tsim, txo tus nqi thiab tswj kev siv nyiaj |
Khoom Parameters
| Yam khoom | 15-15 | 20-20 | 25-25 | 30-30 | 40-40 | 45-45 : kuv | 50-50 |
| Loj | |||||||
| Tensile zog KN / m (MD) ≥ | 15 | 20 | 25 | 30 | 40 | 45 | 50 |
| Tensile zog KN / m (CD) ≥ | 15 | 20 | 25 | 30 | 40 | 45 | 50 |
| Elongation Rate% (MD) ≤ | 13 | ||||||
| Elongation Rate% (CD) ≤ | 13 | ||||||
| Tensile zog ntawm 2% elongation KN / m (MD) ≥ | 5 | 7 | 9 | 10.5 | 14 | 16 | 17.5 Nws |
| Tensile zog ntawm 2% elongation KN / m (CD) ≥ | 5 | 7 | 9 | 10.5 | 14 | 16 | 17.5 Nws |
| Tensile zog ntawm 5% elongation KN / m (MD) ≥ | 7 | 14 | 17 | 21 | 28 | 32 | 35 |
| Tensile zog ntawm 5% elongation KN / m (CD) ≥ | 7 | 14 | 17 | 21 | 28 | 32 | 35 |
| Kev sib tshuam ua haujlwm% | 93 | ||||||
| Ntev (m) | 50 | ||||||
Daim ntawv thov thiab kev pab cuam tom qab muag
1. Txoj Kev Txhim Kho
2. Kev Txhim Kho Kev Ncaj Ncees
3.Railway Reinforcement
4.Port Reinforcement
5.Tshav dav hlau Reinforcement
6.Landfill Reinforcement
7. Irrigation Project
8. Hiav txwv Reclamation Project
Kev teeb tsa
(1) ua ntej, txoj kab nqes hav ntawm subgrade raug tso tawm kom raug.Txhawm rau kom ntseeg tau qhov dav ntawm subgrade, txhua sab yog dav los ntawm 0.5m.Tom qab theem ntawm lub hauv paus-av, 25T vibratory roller yog siv rau static siab ob zaug, thiab 50T vibratory siab yog siv rau plaub zaug.
(2) nteg 0.3m tuab nruab nrab (coarse) xuab zeb.Tom qab phau ntawv thiab cov neeg kho tshuab leveling, lub vibration roller ntawm 25T yuav zoo li qub nias ob zaug.
(3) tso PP Biaxial Geogrid, PP Biaxial Geogrid nteg pem teb yuav tsum tau theem tawm, ntom, feem ntau yuav tsum tiaj tus, ncaj, tsis tuaj yeem sib tshooj, tsis curl, kink, qhov nyob ib sab ob geogrids rau lap 0.2 m, thiab raws li embankment lateral ib feem. ntawm geogrid lap txhua 1 meter los ntawm kev siv 8 xaim kev twb kev txuas, thiab tso cov grille, 1.5 2 m nrog U txhua tus ntsia hlau tsau rau hauv pem teb.
(4) tom qab thawj txheej ntawm PP Biaxial Geogrid yog paved, txheej thib ob ntawm 0.2m tuab nruab nrab (coarse) xuab zeb yuav tsum tau ntim rau hauv, nrog rau tag nrho cov thickness ntawm 0.5m.Four, yim caum-ob, yim caum-ob.Ib, xya xya.Cov txheej txheem: lub tsheb mus rau qhov chaw tsim kho nrog cov xuab zeb tawm hauv txoj kev sab nraud, thiab tom qab ntawd nrog lub tsheb nrau av uas tau tsav mus rau pem hauv ntej, muab tso rau ntawm ob sab ntawm subgrade filling tom qab 0.1 m 2 m scope, quav thawj txheej geogrid flipping dua sau rau hauv 0.1. metres ntawm cov xuab zeb ntxhib, txwv rau ob sab mus rau nruab nrab ntawm kev txhaws thiab propulsion, txwv tsis pub txhua yam ntawm cov tshuab tsis muaj cov xuab zeb ( ntxhib) geogrid rau kev khiav tsheb, thiaj li tuaj yeem lav cov geogrid du, tsis txhob nruas, tsis wrinkle, nyob hauv txheej thib ob (coarse) tom qab xuab zeb du, qib ntsuas, tiv thaiv qhov tsis sib xws puv tuab, tom qab tos kom pom thiab kho rau 25 t vibratory roller static siab ob zaug.
(5) txoj kev tsim kho ntawm txheej thib ob ntawm geotechnical grating yog tib yam li ntawm thawj txheej, thiab nruab nrab (coarse) xuab zeb ntawm 0.3m thaum kawg tau ntim rau hauv. Cov txheej txheem filling yog tib yam li ntawm thawj txheej. , thiab lub siab zoo li qub ntawm 25T cov menyuam siv rau ob zaug, kom lub zog ntawm lub hauv paus subgrade tiav.
(6) nyob rau hauv lub thib peb txheej (thickness) xuab zeb compaction, longitudinal nyob rau hauv txoj kab nqes ntawm txhua sab raws txoj kev nteg geogrid ob paintings, lap 0.16 m, yog txuas nrog tib txoj kev, thiab ces pib earthwork tsim, nteg geogrid nqes hav tiv thaiv, yuav tsum ntsuas ntawm txhua lub hauv pem teb nteg sab, txhua sab kom ntseeg tau txoj kab nqes tom qab kho dua tshiab geogrids embedded tsom xam nyob rau hauv 0.10 m.
(7) txhua txoj kab nqes geogrid tau sau nrog ob txheej av, uas yog, thaum lub thickness yog 0.8m, ib txheej ntawm geogrid yuav tsum tau muab tso rau ntawm ob sab tib lub sijhawm, thiab tom qab ntawd los ntawm tib txoj kev, kom txog rau thaum nws tau nteg. nyob rau hauv cov av ntawm lub xub pwg nyom ntawm txoj kev.
(8) Tom qab qhov subgrade tiav lawm, txoj kab nqes yuav tsum tau kho kom raws sijhawm, thiab ko taw ntawm txoj kab nqes yuav tsum tau tiv thaiv los ntawm cov pob zeb qhuav.Lub subgrade yuav tsum widened 0.3m ntawm txhua sab thiab 1.5% kev sib hais haum yuav tsum tau tseg.
