Muna 2018, kugadzirwa kwekongiri yenyika kwakasvika 2.35 bhiriyoni cubic metres, uye muna 2019, yakasvika 2.4 bhiriyoni cubic metres, nekuwedzera kwegore negore kunosvika 3.46%.Kushandiswa kwekongiri muChina kwakaiswa pasirese kwemakore anopfuura makumi matatu.

Pakazosvika gore ra2019, China yakazara mileage yemigwagwa yasvika makiromita 4.8465 miriyoni, uye mugwagwa mukuru wasvika makiromita 142600, uchiisa nyika * *.Pakupera kwa2019, China njanji yekushanda mileage yasvika kupfuura 139000 km, kusanganisira 35000 km yechitima chekumhanya.

Pakupera kwa2018, pakanga paine 851500 mabhiriji emigwagwa, ane hurefu hwakazara hwe55685900 metres.15117 njanji tunnels yakaiswa mukushanda, nehurefu hwakazara hwe16331km;pakupera kwa2019, iyo yakazara mileage yekushanda yezvitima zvemudhorobha muChina ichasvika 6600km.

Pakazopera 2017, 8591 mashizha ekuchenesa tsvina akanga avakwa muChina;pakazopera 2018, pakanga paine 23513 epamba makemikari indasitiri mabhizinesi

Kuseri kweaya makuru data kune huwandu hwekongiri yekumisikidza engineering.Zvisinei, pachava nezvinetso zvakasiyana-siyana mukushandiswa kwenguva refu kwezvinhu zvekongiri, kunyanya "kenza" nhatu dzekutsemuka, kubuda uye kuora, izvo zvave njodzi huru yakavanzika inokanganisa kusimba kwayo uye hupenyu hwebasa.

Kune aya mahombe akawanda-anorangwa kongiri (kuchengetedza mvura, chekufambisa, maindasitiri uye kuvaka kwevagari, maneja, mauto, simba, nezvimwewo), zvimwe kana zvimwe zvinodikanwa, senge kongiri inopwanya kuramba, kugadzirisa, kusapinda kwemvura uye kusapinda, asidhi uye corrosion kuramba, munyu kuramba, carbonation resistance, freeze-thaw resistance, kusimbaradza, zvichingodaro, zvine tarisiro huru yemusika, uye izvi zvinodiwa zvinogona kuoneka panguva imwe chete.