A fannin gina manyan hanyoyi, hanyar da aka yanke hanyar cike hanyar tana da rauni a tsarin gadon hanya, wanda galibi yakan haifar da rashin daidaiton wurin zama, tsagewar hanyoyin da sauran cututtuka saboda shigar ruwan karkashin kasa, bambance-bambance a cikin kayan cikewa da haƙa da kuma rashin ingantaccen fasahar gini. Hanyar magudanar ruwa mai girman uku abu ne da ake amfani da shi don magance waɗannan matsalolin. To, menene aikace-aikacensa a cikin hanyar da aka yanke hanyar cike hanyar cike hanyar cika hanyar?
1. Abubuwan da ke haifar da cututtuka da buƙatun magudanar ruwa na mahadar hanya mai cike da kayan da aka yanke
Cututtukan da ke tattare da mahadar hanyar yanke-cika galibi suna fitowa ne daga waɗannan saɓani:
1. Shigar ruwan ƙasa da bambance-bambancen abu
Haɗakar da ke tsakanin wurin cikewa da yankin haƙa rami sau da yawa tana samar da yanayin haƙa ruwa saboda bambancin matakan ruwan ƙasa, wanda ke haifar da laushi ko gogewar cikar.
2. Lalacewar tsarin gini
A cikin hanyoyin gargajiya, matsaloli kamar haƙa matakai ba bisa ƙa'ida ba da kuma rashin isasshen matsewa a mahadar da aka yanke suna da yawa.
2. Fa'idodin fasaha na ragar magudanar ruwa mai girma uku
1. Ingantaccen aikin magudanar ruwa da hana tacewa
Tashar magudanar ruwa mai girman uku ta ƙunshi geotextile mai gefe biyu da tsakiyar tsakiyar raga mai girman uku. Kauri na tsakiyar raga shine 5-7.6mm, ramin yana da >90%, kuma ƙarfin magudanar ruwa shine 1.2×10⁻³m²/s, wanda yayi daidai da kauri na tsakuwa mai kauri mita 1. Tashar magudanar ruwa da haƙarƙarinsa na tsaye da haƙarƙarinsa masu karkata na iya kiyaye daidaiton kwararar ruwa a ƙarƙashin babban kaya (3000kPa).
2. Ƙarfin tauri da ƙarfafa harsashi
Ƙarfin tsayi da na juye-juye na ragar magudanar ruwa mai girman uku zai iya kaiwa 50-120kN/m, wanda zai iya maye gurbin aikin ƙarfafa wasu geogrids. Lokacin da aka shimfiɗa shi a mahaɗin cikawa da haƙa rami, tsarin tsakiyar raga na iya wargaza yawan damuwa da rage bambancin wurin zama.
3. Dorewa da sauƙin gini
An yi shi ne da polyethylene mai yawan yawa (HDPE) da kuma polyester fiber composite, wanda ke jure wa hasken ultraviolet, acid da alkali, kuma yana da tsawon rai na sama da shekaru 50. Halayensa masu sauƙi (nauyi a kowane yanki <1.5kg/m²) suna sa ya zama mai sauƙin shimfiɗawa da hannu ko ta hanyar injiniya, kuma ingancin ginin ya fi na yadudduka na tsakuwa na gargajiya girma da kashi 40%.
III. Wuraren gini da kuma kula da inganci
1. Maganin saman tushe
Faɗin haƙa matakin da ke mahadar cikawa da haƙa ramin shine ≥1m, zurfin yana zuwa ga ƙasa mai ƙarfi, kuma kuskuren faɗin saman shine ≤15mm. Cire abubuwa masu kaifi don guje wa huda ragar magudanar ruwa.
2. Tsarin kwanciya
(1) An shimfida ragar magudanar ruwa a gefen gadon hanya, kuma babban alkiblar ƙarfin tana daidai da matakin;
(2) Ana gyara haɗin ta hanyar walda mai zafi ko ƙusoshin da ke siffar U, tare da tazara ta ≤1m;
(3) Matsakaicin girman barbashi na bayan cikawa shine ≤6cm, kuma ana amfani da injina masu sauƙi don matsewa don guje wa lalata tsakiyar raga.
3. Duba inganci
Bayan kwanciya, ya kamata a yi gwajin sarrafa ruwa (ƙimar da aka saba ≥1×10⁻³m²/s) da gwajin ƙarfin haɗuwa (ƙarfin taurin kai ≥80% na ƙimar ƙira).
Kamar yadda aka gani daga sama, hanyar sadarwa ta magudanar ruwa mai girman uku na iya inganta kwanciyar hankali da dorewar hanyar haɗin cikewa da haƙa rami ta hanyar fa'idodinta na ingantaccen magudanar ruwa, ƙarfafa tensile da dorewa.
Lokacin Saƙo: Yuni-30-2025
