Construction method for compacting silty sand roadbed
A construction method and technology of silt soil, applied in the direction of foundation structure engineering, on-site foundation soil survey, roads, etc., can solve problems such as troubled construction units, poor compaction performance, poor water retention, etc., to ensure safety and reliability. , The effect of reducing waste of land resources and avoiding pollution and damage
Active Publication Date: 2020-01-17
SHAANXI ESTATE DEV SERVICE CORP
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Problems solved by technology
On the west bank of the Yellow River, a large area in the Weinan section of Shaanxi Province is formed by the alluvial accumulation of the Yellow River. The shallow strata in this area are mostly silt soil. , small plasticity and poor water retention, resulting in poor compaction performance and difficult control of construction quality, which has become one of the main problems plaguing construction units and quality inspection departments
[0003] At present, the research on silt soil subgrade filling materials at home and abroad is still in the initial stage, and there is no complete and mature construction and design experience.
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[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0037] Such as figure 1 , 2 As shown, the construction method of silt soil subgrade compaction provided in this embodiment is suitable for the subgrade compacted soil quality is silt soil, or the original subgrade compacted soil quality cannot meet the engineering or mechanical requirements, and silt soil needs to be replaced In the case of compacted soil for a new subgrade, the following steps are specifically included:
[0038] Step 1: Clean up the sundries, garbage, wheat seedlings and turf on the ground in the subgrade construction area, and level the ground;
[0039] Step 2: Test the moisture content of the silt soil that will be used for roadbed compaction, and calculate the optimal moisture content;
[0040] Step 2.1: Take on-site sampling of the silt soil that will be used as the roadbed. If the silt soil is the silt soil used to r...
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Abstract
In order to solve the technical problem that the silty sand is used as a roadbed filling material, the construction quality is difficult to control, the invention provides a construction method for compacting a Yellow River impact silty sand roadbed. On the basis of detecting the water content of the silty sand, the roadbed construction parameters, such as the compaction tonnage, the rolling speed, the vibration frequency, the vibration amplitude and the rolling times, etc., during roadbed rolling, are defined, so that it is ensured that the silty sand roadbed compaction quality is reliable, the field construction is facilitated, and the operability of large-scale popularization is achieved.
Description
technical field [0001] The invention relates to a construction method for compacting a silt soil roadbed. Background technique [0002] In recent years, with the rapid development of highway traffic, the quality requirements of roadbed and pavement have been continuously improved, and the construction quality of roadbed and pavement has attracted more and more attention. On the west bank of the Yellow River, a large area in the Weinan section of Shaanxi Province is formed by the alluvial accumulation of the Yellow River. The shallow strata in this area are mostly silt soil. , small plasticity, and poor water retention, resulting in poor compaction performance and difficult control of construction quality, which has become one of the main problems that plague construction units and quality inspection departments. [0003] At present, the research on silt soil subgrade filling materials at home and abroad is still in the initial stage, and there is no complete and mature cons...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E01C3/00E02D1/00E02D1/02E01C19/23
CPCE01C3/00E01C19/23E02D1/00E02D1/027
Inventor 谢鹏宇范王涛胡延涛杜宜春刘泽鑫赵轩高健
Owner SHAANXI ESTATE DEV SERVICE CORP