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A platform for research: civil engineering, architecture and urbanism
Composite bridge abutment and construction method thereof
The invention discloses a combined type bridge abutment and a construction method thereof.The combined type bridge abutment is applied to highway reconstruction and expansion bridge widening engineering and comprises a bridge abutment pile foundation, a bearing platform, a bent cap and tree-shaped piles, the bridge abutment pile foundation is vertically arranged on the junction slope face of an old roadbed and a newly-built roadbed, and the bearing platform is arranged on the bearing platform; one end of the abutment pile foundation extends into a soil layer at the bottom of the old roadbed, a bearing platform is arranged at the other end of the abutment pile foundation, and a cover beam is arranged at the top of the bearing platform and located below the top of the newly-built roadbed; a tree-shaped pile is arranged on one side of the bridge abutment pile foundation, one end of the tree-shaped pile extends into the old roadbed, and the other end of the tree-shaped pile extends into the bearing platform and is fixedly connected with the bearing platform. The method can solve the problem that in a traditional reorganization and extension highway widening project, large-area excavation is conducted on the side slope of an original fill roadbed during construction of the rib plate type bridge abutment, and potential safety hazards are brought to traffic protection and safe operation of an existing highway, so that safe operation of the existing highway is guaranteed, and the construction period of the existing highway is shortened. And the punching influence of the high slope soil body landslide on the bridge pile foundation is also reduced.
本发明公开了一种复合式桥台及其施工方法，复合式桥台应用在高速公路改扩建桥梁拼宽工程中，其包括桥台桩基、承台、盖梁和树状桩，其中，桥台桩基竖直设置在旧路基和新建路基的交界坡面处，桥台桩基的一端延伸至旧路基底部的土层中，其另一端设置有承台，承台的顶部设置有盖梁，盖梁位于新建路基顶部的下方；桥台桩基的一侧设置有树状桩，树状桩的一端伸入旧路基中，其另一端伸入承台中，与承台固定连接。本发明能够解决传统改扩建高速公路拼宽工程中，肋板式桥台施工时在原有填方路基边坡处大面积开挖，给既有高速公路的保通和安全运营带来安全隐患的问题，从而保障既有高速公路的安全运营，也减少高边坡土体滑坡对桥梁桩基的冲切影响。
Composite bridge abutment and construction method thereof
The invention discloses a combined type bridge abutment and a construction method thereof.The combined type bridge abutment is applied to highway reconstruction and expansion bridge widening engineering and comprises a bridge abutment pile foundation, a bearing platform, a bent cap and tree-shaped piles, the bridge abutment pile foundation is vertically arranged on the junction slope face of an old roadbed and a newly-built roadbed, and the bearing platform is arranged on the bearing platform; one end of the abutment pile foundation extends into a soil layer at the bottom of the old roadbed, a bearing platform is arranged at the other end of the abutment pile foundation, and a cover beam is arranged at the top of the bearing platform and located below the top of the newly-built roadbed; a tree-shaped pile is arranged on one side of the bridge abutment pile foundation, one end of the tree-shaped pile extends into the old roadbed, and the other end of the tree-shaped pile extends into the bearing platform and is fixedly connected with the bearing platform. The method can solve the problem that in a traditional reorganization and extension highway widening project, large-area excavation is conducted on the side slope of an original fill roadbed during construction of the rib plate type bridge abutment, and potential safety hazards are brought to traffic protection and safe operation of an existing highway, so that safe operation of the existing highway is guaranteed, and the construction period of the existing highway is shortened. And the punching influence of the high slope soil body landslide on the bridge pile foundation is also reduced.
本发明公开了一种复合式桥台及其施工方法，复合式桥台应用在高速公路改扩建桥梁拼宽工程中，其包括桥台桩基、承台、盖梁和树状桩，其中，桥台桩基竖直设置在旧路基和新建路基的交界坡面处，桥台桩基的一端延伸至旧路基底部的土层中，其另一端设置有承台，承台的顶部设置有盖梁，盖梁位于新建路基顶部的下方；桥台桩基的一侧设置有树状桩，树状桩的一端伸入旧路基中，其另一端伸入承台中，与承台固定连接。本发明能够解决传统改扩建高速公路拼宽工程中，肋板式桥台施工时在原有填方路基边坡处大面积开挖，给既有高速公路的保通和安全运营带来安全隐患的问题，从而保障既有高速公路的安全运营，也减少高边坡土体滑坡对桥梁桩基的冲切影响。
Composite bridge abutment and construction method thereof
一种复合式桥台及其施工方法
SONG SHUANGMING (author) / XU HEFEI (author) / TIAN XIUFANG (author) / WANG XIAN'AN (author) / LI JIANJUN (author) / HU ZHENYU (author) / ZHANG LI (author) / MAO MIN (author) / XIAO MINGQI (author) / ZHANG RUNDAN (author)
2024-12-03
Patent
Electronic Resource
Chinese
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