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Bridge abutment back backfill roadbed and construction method thereof
The invention provides a bridge abutment back backfill roadbed and a construction method thereof.The bridge abutment back backfill roadbed comprises a main roadbed body and a bridge abutment body, roadbed steps are sequentially arranged on the side, close to the bridge abutment body, of the main roadbed body, and a base is arranged at the bottom between the main roadbed body and the bridge abutment body; a backfill layer is arranged between the top of the base and the roadbed; the substrate is provided with a first substrate layer, a second substrate layer and a third substrate layer which are respectively laid from bottom to top; the first substrate layer is formed by tedding a substrate, adding cement and compacting; the second substrate layer and the third substrate layer are formed by compacting cement soil; according to the abutment back backfill roadbed, through the base laid in a layered mode, the stress performance of the backfill roadbed can be improved, the bearing performance of the base is enhanced, sedimentation is reduced, and bumping at the bridgehead is prevented.
本发明提供一种桥台台背回填路基及其施工方法,桥台台背回填路基,包括主体路基与桥台台身,所述主体路基上靠近所述桥台台身的一侧依次开设有路基台阶,所述主体路基与桥台台身之间的底部设置有基底,所述基底顶部与路床之间设置有回填层;所述基底具有由下至上分别铺设而成的第一基底层、第二基底层及第三基底层;所述第一基底层为基底翻晒后掺加水泥压实形成;所述第二基底层及第三基底层均为水泥土压实形成;在本发明中的桥台台背回填路基,通过分层铺设的基底,能够改善回填路基的受力性能,增强基底的承载性能,减少沉降,防止桥头跳车。
Bridge abutment back backfill roadbed and construction method thereof
The invention provides a bridge abutment back backfill roadbed and a construction method thereof.The bridge abutment back backfill roadbed comprises a main roadbed body and a bridge abutment body, roadbed steps are sequentially arranged on the side, close to the bridge abutment body, of the main roadbed body, and a base is arranged at the bottom between the main roadbed body and the bridge abutment body; a backfill layer is arranged between the top of the base and the roadbed; the substrate is provided with a first substrate layer, a second substrate layer and a third substrate layer which are respectively laid from bottom to top; the first substrate layer is formed by tedding a substrate, adding cement and compacting; the second substrate layer and the third substrate layer are formed by compacting cement soil; according to the abutment back backfill roadbed, through the base laid in a layered mode, the stress performance of the backfill roadbed can be improved, the bearing performance of the base is enhanced, sedimentation is reduced, and bumping at the bridgehead is prevented.
本发明提供一种桥台台背回填路基及其施工方法,桥台台背回填路基,包括主体路基与桥台台身,所述主体路基上靠近所述桥台台身的一侧依次开设有路基台阶,所述主体路基与桥台台身之间的底部设置有基底,所述基底顶部与路床之间设置有回填层;所述基底具有由下至上分别铺设而成的第一基底层、第二基底层及第三基底层;所述第一基底层为基底翻晒后掺加水泥压实形成;所述第二基底层及第三基底层均为水泥土压实形成;在本发明中的桥台台背回填路基,通过分层铺设的基底,能够改善回填路基的受力性能,增强基底的承载性能,减少沉降,防止桥头跳车。
Bridge abutment back backfill roadbed and construction method thereof
桥台台背回填路基及其施工方法
YANG LIXIN (Autor:in) / SHEN WEICI (Autor:in) / WANG CHAO (Autor:in) / YANG FAN (Autor:in) / WANG ZHEN (Autor:in)
24.01.2023
Patent
Elektronische Ressource
Chinesisch
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