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Construction method of high fill subgrade adjacent to dam

A construction method and high fill technology, which can be used in infrastructure engineering, roads, roads, etc., and can solve problems such as insufficient settlement time for dynamic compaction and reinforcement

Inactive Publication Date: 2021-02-26
SHANGHAI BAOYE GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a construction method for a high fill embankment adjacent to a dam, which can effectively solve the problem of the super-thick and super-volume high fill road adjacent to the dam, which cannot be reinforced by dynamic compaction and impact rolling. Or subgrade settlement problems caused by insufficient settling time

Method used

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  • Construction method of high fill subgrade adjacent to dam
  • Construction method of high fill subgrade adjacent to dam

Examples

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Embodiment Construction

[0088] Such as figure 1 Shown: a kind of high fill embankment construction method adjacent to the dam, it comprises the following steps:

[0089] Step 1. Preparation for construction:

[0090] 1.1 Familiar with design documents and drawings, make technical disclosure and safety disclosure;

[0091] 1.2 According to the site situation, carry out labor allocation, equipped with good mechanical equipment and detailed entry and exit plan;

[0092] 1.3 Plan and design the access roads required in the process of subgrade filling, based on the convenience of transportation and not affecting the filling of subgrade earthwork, so as to ensure the smooth transportation of machinery and equipment during the process of earthwork backfilling;

[0093] 1.4 Do a good job of detailed earthwork allocation planning and overall layout, determine the filling section, leveling section, rolling section, and testing section, and gradually fill the construction in sections;

[0094] 1.5 Investigate ...

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Abstract

The invention relates to a construction method of a high fill subgrade adjacent to a dam. The construction method comprises the steps: step 1, performing construction preparation work; step 2, performing test section construction; step 3, performing substrate treatment; step 4, performing roadbed drainage; step 5, performing measuring, positioning and setting out, and determining a road center line, a slope toe line and the like; step 6, performing rolling layer by layer; step 7, performing roadbed monitoring; step 8, performing roadbed detection; step 9, laying a steel-plastic geogrid; step 10, performing roadbed finishing and acceptance check; and step 11, performing slope protection construction; according to the construction method, the construction of the super-thick and super-mass high-fill subgrade adjacent to the dam can be completed more normatively and effectively with higher quality.

Description

technical field [0001] The invention relates to a construction method for filling a roadbed, in particular to a construction method for a high filling roadbed adjacent to a dam. Background technique [0002] Embankments with a filling height greater than 18m (soil) or 20m (stone) are high-fill embankments. High fill embankment has a large amount of filling work, long construction period, many filling problems involved, and it is difficult to control the quality of backfill; especially for the construction of ultra-thick and super-volume high-fill embankment adjacent to the dam, in order to protect the reservoir dam body The quality of the high-fill roadbed will not be affected by external forces and cause quality hazards. It is often forbidden to use impact rolling or dynamic compaction to reinforce the construction method. The quality of backfilling in the construction of high-fill roadbeds cannot be effectively guaranteed, resulting in uneven settlement of the roadbed in t...

Claims

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Application Information

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IPC IPC(8): E01C3/00E01C1/00E01C19/48E02D1/02E02D3/00
CPCE01C1/002E01C3/00E01C19/48E02D1/022E02D3/005Y02A30/60
Inventor 丁志华龚丽辉李文峰朱长根
Owner SHANGHAI BAOYE GRP CORP
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