Control construction method of mortar grouting amount of anchorage section of prestressed anchor rod
A construction method and prestressing technology, applied in excavation, infrastructure engineering, sheet pile wall, etc., can solve the problems of high cost and construction risk of large-span tunnels
Inactive Publication Date: 2019-08-16
CTCE GRP ROAD & BRIDGE ENG CO LTD +1
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Problems solved by technology
However, due to factors such as the large width of the road surface, when the road passes through mountainous areas, the large-span tunnels used often have high costs and high construction risks, so there are many high-slope subgrade constructions in mountainous cities.
No specific construction control measures have been reported yet
Method used
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[0021] The present invention provides a construction method for controlling the grouting amount of the prestressed bolt anchorage section for slope protection. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0022] The invention provides a construction method for controlling the grouting amount of the prestressed bolt anchorage section for slope protection, specifically as follows:
[0023] It includes the steps of processing, assembling and positioning and fixing the slurry-proof steel plate 1;
[0024] It includes the step of connecting the grouting pipe 2 with the grout-stopping steel plate 1;
[0025] It includes the steps of installing the prestressed anchor rod 3;
[0026] It includes the step of...
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Abstract
The invention discloses a control construction method of the mortar grouting amount of an anchorage section of a prestressed anchor rod used for slope surface protection. The control construction method comprises the steps that a mortar-stopping steel plate is fixedly mounted; a grouting pipe is mounted; the prestressed anchor rod is mounted; and grouting of anchorage mortar is conducted. The mortar-stopping steel plate is constituted in the mode that a rubber ring is clamped between two steel plate bodies, and the mortar-stopping steel plate is fixed through nuts. A grouting hole and an exhaust hole are reserved in the mortar-stopping steel plate, the grouting hole and a grouting machine are connected through the grouting pipe, grouting is conducted through the grouting hole, smooth grouting is ensured, air in the anchorage section is exhausted through the exhaust hole, and the purpose of effectively controlling the anchorage length of the anchorage section of the prestressed anchor rod is realized; and therefore, the mortar use amount is effectively controlled, the construction quality can be ensured, and construction standardization of the prestressed anchor rod is realized.
Description
technical field [0001] The invention relates to the field of construction of prestressed anchor rods for road cutting and slope protection, in particular to a construction method for controlling the amount of mortar injected in the anchorage section of prestressed anchor rods for slope protection. Background technique [0002] At present, with the rapid development of my country's economy, the proportion of urban population is increasing, and the cities in mountainous areas are also expanding. In order to meet the needs of urban transportation development in mountainous areas, the number of roads built in mountainous areas is increasing year by year. However, due to factors such as the large width of the road surface, when the road passes through mountainous areas, the large-span tunnels used often have high costs and high construction risks, so there are many high-slope subgrade constructions in mountainous cities. For high slopes, the method of prestressed anchor + frame b...
Claims
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IPC IPC(8): E02D17/20E02D5/76
CPCE02D5/76E02D17/20
Inventor 梁硕高银伟张凯华王元坤应雄杨唯吕辉辉高银龙刘晓刚任卫召孙宝锋闫俊张丹徐洪洋
Owner CTCE GRP ROAD & BRIDGE ENG CO LTD