Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Drilling and grouting construction method for solving void of bridge end transition slab
The invention provides a drilling and grouting construction method for solving the problem of bridgehead transition slab disengagement, which comprises the following steps of grouting hole arrangement, drilling, hole cavity cleaning, periphery sealing and slurry mixing, curtain grouting, grouting and hole sealing, circulating grouting and hole sealing, and repeated circulating grouting and hole sealing and cleaning. By means of the construction method, grouting reinforcement can be performed on the void area of the butt strap. The butt strap foundation is reinforced on the premise that the existing structure state is not changed, the method has the advantages of being high in construction speed, short in construction period, small in traffic influence and the like, foam cement is continuously pressed into the disengaging area below the butt strap through grouting equipment at a certain pressure value, and good filling of the disengaging area of the butt strap is achieved Compared with a traditional method, slurry leakage loss of a side slope and the like is avoided, the grouting effect is guaranteed, and by improving cement slurry, the material density is reduced, the strength is guaranteed, meanwhile, the material weight is reduced, and later settlement is reduced.
本发明提供一种解决桥头搭板脱空的钻孔压浆的施工方法，包括如下步骤：压浆孔布置、钻孔、孔腔清理、外围封闭与浆液拌制、帷幕压浆、压浆与封孔、循环压浆及封孔、多次循环压浆和封孔与清理，该施工方法能够实现对搭板的脱空区域进行注浆加固。本发明在不改变既有结构状态的前提下加固搭板基础，具有施工速度快、工期短、对交通影响小等特点，本发明利用压浆设备持续一定压力值将发泡水泥压入搭板下方的脱空区域，实现对搭板的脱空区域的良好填充，较传统方法避免了边坡等漏浆损耗，保障了压浆效果，本发明还通过改善水泥浆液，降低材料密度，保证强度的同时减轻材料重量，减少后期沉降。
Drilling and grouting construction method for solving void of bridge end transition slab
The invention provides a drilling and grouting construction method for solving the problem of bridgehead transition slab disengagement, which comprises the following steps of grouting hole arrangement, drilling, hole cavity cleaning, periphery sealing and slurry mixing, curtain grouting, grouting and hole sealing, circulating grouting and hole sealing, and repeated circulating grouting and hole sealing and cleaning. By means of the construction method, grouting reinforcement can be performed on the void area of the butt strap. The butt strap foundation is reinforced on the premise that the existing structure state is not changed, the method has the advantages of being high in construction speed, short in construction period, small in traffic influence and the like, foam cement is continuously pressed into the disengaging area below the butt strap through grouting equipment at a certain pressure value, and good filling of the disengaging area of the butt strap is achieved Compared with a traditional method, slurry leakage loss of a side slope and the like is avoided, the grouting effect is guaranteed, and by improving cement slurry, the material density is reduced, the strength is guaranteed, meanwhile, the material weight is reduced, and later settlement is reduced.
本发明提供一种解决桥头搭板脱空的钻孔压浆的施工方法，包括如下步骤：压浆孔布置、钻孔、孔腔清理、外围封闭与浆液拌制、帷幕压浆、压浆与封孔、循环压浆及封孔、多次循环压浆和封孔与清理，该施工方法能够实现对搭板的脱空区域进行注浆加固。本发明在不改变既有结构状态的前提下加固搭板基础，具有施工速度快、工期短、对交通影响小等特点，本发明利用压浆设备持续一定压力值将发泡水泥压入搭板下方的脱空区域，实现对搭板的脱空区域的良好填充，较传统方法避免了边坡等漏浆损耗，保障了压浆效果，本发明还通过改善水泥浆液，降低材料密度，保证强度的同时减轻材料重量，减少后期沉降。
Drilling and grouting construction method for solving void of bridge end transition slab
一种解决桥头搭板脱空的钻孔压浆的施工方法
LIU ZHIGUO (Autor:in) / XIE WEIWEI (Autor:in) / TANG XIAOTIAN (Autor:in) / WEI YANG (Autor:in) / QIAN HAO (Autor:in)
04.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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