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Investigation method of bridge piers and abutments in fault-bearing water and erection method of bridge abutments

A technology of confined water and faults, which is applied in the direction of bridge construction, bridge erection/assembly of bridges, etc., to achieve good economic benefits, save survey costs, and save engineering costs

Active Publication Date: 2022-06-10
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Investigation method of bridge piers and abutments in fault-bearing water and erection method of bridge abutments
  • Investigation method of bridge piers and abutments in fault-bearing water and erection method of bridge abutments
  • Investigation method of bridge piers and abutments in fault-bearing water and erection method of bridge abutments

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Embodiment Construction

[0030] The essence of the technical solutions of the embodiments of the present application will be explained in detail below with reference to the accompanying drawings.

[0031] The technical solutions of the embodiments of the present application provide detailed and reliable geological and hydrological information for the design of bridge piers on the basis of fully ascertaining the spatial distribution characteristics of the fault-confined water, the relationship between compensation, diameter and displacement, and the law of migration. Therefore, the position of the pier and abutment of the bridge is optimized, the quality of the bored pile is ensured, the bridge abutment laid according to the method of the embodiment of the present application is safer, the safety and reliability of the bridge are ensured, and the cost of bridge construction can be reduced. , to maximize the return on investment.

[0032] figure 1 This is a schematic flowchart of the survey method for ...

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Abstract

The embodiment of the present application discloses a survey method of a bridge pier with fault-confined water and a method for erecting a bridge pier including a fault-confined water area. Hydrological point analysis, obtain engineering geology and hydrogeological surveying and mapping results of relevant areas of bridge piers to be erected, determine the range of fault confined water; obtain relevant areas of bridge piers to be erected along the fault direction, and Lay out multiple geophysical prospecting lines to spatially delineate the position of stratum faults and the distribution and depth of water-bearing zones within the bridge site area from both horizontal and vertical directions; drill holes in the relevant areas where bridge piers are to be erected to obtain water-bearing Based on the hydrogeological exploration results of the stratum, the dynamic observation of underground hydrology is carried out; based on the obtained engineering geology and hydrogeological surveying and mapping results, geophysical prospecting results and hydrogeological exploration results, the position of the bridge pier and the size of the hole span are determined, and the position of the bridge pier is determined. Optimization.

Description

technical field [0001] The embodiments of the present application relate to railway engineering geological and hydrogeological survey technologies, and in particular, to a survey method for a pier and abutment of a fault-confined water bridge and a method for erecting a bridge pier and abutment including a fault-confined water area. Background technique [0002] A fault is a common water storage structure. When there is a groundwater recharge source in the fractured zone of the fault and the fault-affected zone, and the rock mass on the hanging wall and the foot wall of the fault is weakly permeable, a relatively water-blocking zone will be formed. Under proper topography, recharge and drainage conditions, fault confined water with a certain water pressure can be formed. When the railway passes through the fault confined water area in the form of a bridge, the development of the water storage structure and spatial distribution characteristics of the fault confined water must...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02E01D21/00
CPCG01D21/02E01D21/00
Inventor 王祥郭建湖陈锣增田嵩山李小和熊林墩
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP