Skim pembinaan pengumpulan air hujan dalam komuniti belos berdinding dua PVC: reka bentuk cerun dan pengoptimuman saliran.

2025-08-18


dengan pecutan pembandaran, sistem pengumpulan air hujan komuniti telah menjadi bahagian penting dalam pembinaan bandar span. Belos dua dinding PVC digunakan secara meluas dalam kejuruteraan rangkaian paip air hujan kerana ketegaran gelang yang tinggi, rintangan kakisan, dan kemudahan pembinaan. Digabungkan dengan amalan kejuruteraan, kertas kerja ini memperincikan perkara teknikal pembinaan sistem pengumpulan air hujan dalam komuniti dari dua aspek reka bentuk cerun dan pengoptimuman saliran.

1, asas reka bentuk kejuruteraan

Sistem pengumpulan air hujan komuniti perlu dikira berdasarkan kawasan pengumpulan air, formula kekuatan hujan dan data hujan tempatan. Menggunakan belos dua dinding PVC (DN200-DN600) sebagai saluran paip utama, aliran reka bentuk perlu memenuhi keperluan pelepasan ribut hujan sekali dalam tempoh 50 tahun. Produk paip dipilih untuk produk dengan kekakuan gelung melebihi tahap SN8 untuk memastikan kestabilan struktur di bawah beban tanah.

II, Teknologi Utama untuk Reka Bentuk Cerun

1. Spesifikasi Nilai Cerun

Menurut Piawaian Reka Bentuk Bekalan Air dan Saliran Bangunan GB50015, cerun minimum paip air hujan hendaklah mematuhi: tiub DN200 0.003 (0.3%), tiub DN300 0.002 (0.2%). Dalam pembinaan sebenar, pelarasan topografi perlu digabungkan. Cerun 0.5% -1% harus digunakan di kawasan rata. Kejiranan gunung boleh ditingkatkan kepada 1.5% -2%, tetapi kelajuan aliran 5m / s perlu dikawal untuk mengelakkan hakisan.

2. Langkah kawalan cerun

- Gunakan tahap untuk mengukur ketinggian, cerucuk kawalan cerun ditetapkan setiap 50 meter, pastikan sisihan linear peletakan saluran paip 20mm

- bahagian bawah alur menggunakan kusyen pasir dan kerikil setebal 150mm, pekali pemadatan 0.93, untuk mengelakkan penenggelaman saluran paip yang membawa kepada mutasi cerun

- selekoh, tiga hala, tiang konkrit 200mm200mm, meningkatkan kestabilan saluran paip

Tiga, pelaksanaan pengoptimuman saliran

1. Susun atur sistem rangkaian paip

- Ia menggunakan gabungan rangkaian paip cawangan dan rangkaian paip gelang. Jalan utama diletakkan di sepanjang tali pinggang hijau jalan komuniti. Jarak antara paip cawangan dikawal pada 25-30m

- port hujan menetapkan jarak: 30-40m / laluan kenderaan bermotor, 40-50m / laluan pejalan kaki,

- jejari kelengkungan 3 kali diameter paip pada selekoh saluran paip, elakkan selekoh sudut tegak 90

2. Peningkatan prestasi hidraulik

- Saluran masuk air disediakan dengan telaga tenggelam (800mm dalam), penapis keluli tahan karat terbina dalam 60 mesh, injap ekzos disediakan pada titik tertinggi sistem

- untuk mengurangkan risiko sekatan sedimen, dan telaga penyelenggaraan ditetapkan pada setiap 300m (diameter 1200mm). Reka bentuk tangki aliran digunakan untuk mengurangkan kehilangan kepala air

- Saluran paip diisi semula dengan kaedah pemadatan berlapis: tanah biasa (90% pemadatan) + pasir kasar sederhana (95% pemadatan), untuk mengelakkan ubah bentuk tekanan saluran paip

3. Standard pemeriksaan kualiti

- Ujian air tertutup: kepala ujian 2m, kebolehtelapan air 0.05L / (m · min)

- Pengukuran semula cerun: ukuran paksi saluran paip menggunakan tolok stesen penuh, sisihan yang dibenarkan 1% cerun reka bentuk

- Kualiti antara muka: gelang getah perlu disambungkan untuk memastikan jurang antara muka 3mm, tiada fenomena resapan air

, langkah perhatian pembinaan

1. Parit sementara perlu dipasang semasa pembinaan musim hujan, cerun 1: 0.75 perlu diletakkan apabila kedalaman penggalian parit > 1.5m dan sokongan cerun

2. Sebelum pemasangan saluran paip, anda perlu menyemak kelancaran dinding dalam belos, tiada keretakan, ceruk dan kecacatan lain. Sediakan injap sehala pada sambungan dengan rangkaian saluran paip perbandaran untuk mengelakkan penumpahan air hujan

. Melalui reka bentuk cerun saintifik dan langkah pengoptimuman saliran, sistem pengumpulan air hujan belos berdinding dua PVC boleh meningkatkan kecekapan pelepasan air hujan dalam komuniti dan mengurangkan risiko genangan air. Dalam pembinaan, adalah perlu untuk mengikut spesifikasi reka bentuk dengan ketat dan melaraskan parameter secara dinamik dalam kombinasi dengan keadaan kerja sebenar di tapak untuk memastikan operasi sistem yang stabil untuk jangka masa yang panjang. Adalah disyorkan untuk mewujudkan platform pemantauan pintar secara serentak, memantau status saliran dalam masa nyata melalui penderia aliran, dan merealisasikan pengurusan operasi dan penyelenggaraan yang bijak.

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