Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High filling method for bridge abutment
The invention discloses a high filling method for a bridge abutment, comprising the following steps: I, performing step excavation, wherein steps are excavated longitudinally and transversely in ground with a step width not smaller than 1m and a lap-joint width not smaller than 0.6m, and each step has a cross slope inwards tilting by 4%; and II, upwards filling a roadbed stage by stage in layers from the roadbed after step excavation is accomplished, compacting step ground with degree of compaction reaching a required degree of compaction, wherein longitudinal and transverse ultimate tensile strength per running meter of a geogrid is greater than or equal to 80 KN/m, and elongation under longitudinal and transverse nominal tensile strength is smaller than or equal to 13%. The high fillingmethod for the bridge abutment can be adopted to make bridge pier abutment have enough strength, rigidity and stability, and make certain requirements for bearing ability of a foundation, settling volume as well as fractional resistance between the foundation and a base, and the like, thus avoiding damaging the integral structure level, vertical displacement and steering displacement of a bridge under action of load.
本发明公开了一种桥台高填土方法，该桥台高填土方法包括以下几个步骤：步骤一、首先进行台阶开挖，于地面纵横向挖台阶，且台阶宽度要求不小于1m，搭接宽度不小于0.6m，每级台阶均有向内倾斜4％的横坡；步骤二、台阶开挖完成后，从地基开始逐级向上分层填筑路基，且将台阶地面压实，压实度达到设计要求的压实度，土工格栅每延米纵、横极限抗拉强度≥80KN/m，纵、横向标称抗拉强度下的伸长率≤13％；该桥台高填土方法，采用该桥台高填土方法，可以使得桥梁墩台不仅自身应有足够的强度、刚度和稳定性，而且对地基的承载能力、沉降量、地基与基础之间的摩阻力等也都提出一定的要求，避免在上述荷载作用下产生危害桥梁整体结构的水平、竖向位移和转角位移。
High filling method for bridge abutment
The invention discloses a high filling method for a bridge abutment, comprising the following steps: I, performing step excavation, wherein steps are excavated longitudinally and transversely in ground with a step width not smaller than 1m and a lap-joint width not smaller than 0.6m, and each step has a cross slope inwards tilting by 4%; and II, upwards filling a roadbed stage by stage in layers from the roadbed after step excavation is accomplished, compacting step ground with degree of compaction reaching a required degree of compaction, wherein longitudinal and transverse ultimate tensile strength per running meter of a geogrid is greater than or equal to 80 KN/m, and elongation under longitudinal and transverse nominal tensile strength is smaller than or equal to 13%. The high fillingmethod for the bridge abutment can be adopted to make bridge pier abutment have enough strength, rigidity and stability, and make certain requirements for bearing ability of a foundation, settling volume as well as fractional resistance between the foundation and a base, and the like, thus avoiding damaging the integral structure level, vertical displacement and steering displacement of a bridge under action of load.
本发明公开了一种桥台高填土方法，该桥台高填土方法包括以下几个步骤：步骤一、首先进行台阶开挖，于地面纵横向挖台阶，且台阶宽度要求不小于1m，搭接宽度不小于0.6m，每级台阶均有向内倾斜4％的横坡；步骤二、台阶开挖完成后，从地基开始逐级向上分层填筑路基，且将台阶地面压实，压实度达到设计要求的压实度，土工格栅每延米纵、横极限抗拉强度≥80KN/m，纵、横向标称抗拉强度下的伸长率≤13％；该桥台高填土方法，采用该桥台高填土方法，可以使得桥梁墩台不仅自身应有足够的强度、刚度和稳定性，而且对地基的承载能力、沉降量、地基与基础之间的摩阻力等也都提出一定的要求，避免在上述荷载作用下产生危害桥梁整体结构的水平、竖向位移和转角位移。
High filling method for bridge abutment
一种桥台高填土方法
WANG MIN (Autor:in) / LU WEI (Autor:in) / XUE JUN (Autor:in) / LUO JIANPING (Autor:in) / SHEN ZHOU (Autor:in)
18.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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