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A platform for research: civil engineering, architecture and urbanism
Foundation pit soil nail shotcrete-bolt support construction method
The invention is applicable to the technical field of building foundation pit engineering and provides a foundation pit soil nail shotcrete-bolt support construction method. The method comprises the steps that S1, excavation and slope finishing treatment are performed on earth on a foundation pit scene; S2, pore-forming treatment is performed on a foundation pit subjected to excavation and slope finishing; S3, soil nails are manufactured on the foundation pit subjected to pore-forming treatment and mounted in formed pores; S4, grouting treatment is performed on the interiors of the pores; S5,a bar-mat reinforcement is manufactured; S6, a concrete layer is shot; and S7, a drainage system is arranged for the foundation pit. The construction period is short, soil nail shotcrete-bolt supportconstruction is faster than other support construction, and at times, the construction period can even be shortened by over half; the construction cost is low, and in our nation, soil nail support construction can save the construction cost by 1/3-2/3 when compared with cast-in-place pile support construction or other support construction; the adaptability to sites and soil bodies is high, stability and reliability are high, the soil nail shotcrete-bolt support construction adopts a digging-while-supporting method, and the length of and space between soil nails can be modified according to soil property conditions found during site excavation and soil body deformation data monitored on site.
本发明适用于及建筑基坑工程技术领域，提供了一种基坑土钉喷锚支护施工方法，包括：S1、对基坑现场的土方进行开挖及修坡处理；S2、对开挖及修坡好的基坑进行成孔处理；S3、对经过成孔处理的基坑进行土钉制作并将去装入打好的孔中；S4、对孔内进行注浆处理；S5、制作钢筋网；S6、喷射混凝土层面；S7、对基坑设置排水系统。施工期短。土钉喷锚支护较其他支护快的多，有的甚至可将工期缩短一半以上。造价低廉。在我国土钉与灌注桩等其他支护相比可节约造价1/3～2/3。对场地及土体的适应性强。稳定可靠。土钉喷锚支护施工采用边挖土边支护，并可根据现场开挖发现的土质情况和现场监测的土体变形数据，修改土钉的长度及间距。
Foundation pit soil nail shotcrete-bolt support construction method
The invention is applicable to the technical field of building foundation pit engineering and provides a foundation pit soil nail shotcrete-bolt support construction method. The method comprises the steps that S1, excavation and slope finishing treatment are performed on earth on a foundation pit scene; S2, pore-forming treatment is performed on a foundation pit subjected to excavation and slope finishing; S3, soil nails are manufactured on the foundation pit subjected to pore-forming treatment and mounted in formed pores; S4, grouting treatment is performed on the interiors of the pores; S5,a bar-mat reinforcement is manufactured; S6, a concrete layer is shot; and S7, a drainage system is arranged for the foundation pit. The construction period is short, soil nail shotcrete-bolt supportconstruction is faster than other support construction, and at times, the construction period can even be shortened by over half; the construction cost is low, and in our nation, soil nail support construction can save the construction cost by 1/3-2/3 when compared with cast-in-place pile support construction or other support construction; the adaptability to sites and soil bodies is high, stability and reliability are high, the soil nail shotcrete-bolt support construction adopts a digging-while-supporting method, and the length of and space between soil nails can be modified according to soil property conditions found during site excavation and soil body deformation data monitored on site.
本发明适用于及建筑基坑工程技术领域，提供了一种基坑土钉喷锚支护施工方法，包括：S1、对基坑现场的土方进行开挖及修坡处理；S2、对开挖及修坡好的基坑进行成孔处理；S3、对经过成孔处理的基坑进行土钉制作并将去装入打好的孔中；S4、对孔内进行注浆处理；S5、制作钢筋网；S6、喷射混凝土层面；S7、对基坑设置排水系统。施工期短。土钉喷锚支护较其他支护快的多，有的甚至可将工期缩短一半以上。造价低廉。在我国土钉与灌注桩等其他支护相比可节约造价1/3～2/3。对场地及土体的适应性强。稳定可靠。土钉喷锚支护施工采用边挖土边支护，并可根据现场开挖发现的土质情况和现场监测的土体变形数据，修改土钉的长度及间距。
Foundation pit soil nail shotcrete-bolt support construction method
一种基坑土钉喷锚支护施工方法
MAN HONGBO (author)
2020-05-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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