Method for constructing highly plastic clay core wall

A high-plasticity clay and construction method technology, applied in the direction of wall dams, dams, barrages, etc., can solve the problems of destroying the permeable capillaries of high-plasticity clay, unable to meet the plasticity of construction performance, high-plasticity of high-plasticity clay, etc., to achieve good operating conditions , Guarantee the quality of rolling and improve the anti-seepage ability

Inactive Publication Date: 2009-09-23
SINOHYDRO BUREAU 7 CO LTD
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no direct similar filling experience in China. The "thin-layer light rolling" rolling test is used first, that is, the laying thickness of high-plastic clay is 15cm-20cm, and the weight of rolling is about 14 tons. High, surface shear accompanied by deep shear, compaction is not strong, can not meet the design requirements
Moreover, in the process of plowing, crushing, and tumbling, the perm

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for constructing highly plastic clay core wall
  • Method for constructing highly plastic clay core wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] see figure 1 and figure 2 , construction method of the present invention comprises the following steps:

[0017] 1) Adjust the moisture content of high plastic clay in the stockyard.

[0018] Adopt high moisture content direct dam filling technology, directly excavate and transport from the stockyard to the storage site downstream of the dam, pile up into "earth cows" and cover them with colored strips of cloth, and directly dig into the dam for filling when in use; according to According to the test results, when the surface of the soil layer on the dam surface is dry and needs to be supplemented with water, the sprinkler is used to sprinkle water directly on the dam surface. It is required to mix the pressure water and compressed air to spray in the form of mist to make the water evenly distributed. After watering, use a disc harrow Blend well.

[0019] 2) The high plastic clay in the stockyard is qualified: compaction degree ≥ 99%, permeability coefficient -5 cm / ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Widthaaaaaaaaaa
Login to view more

Abstract

The invention relates to a method for constructing a highly plastic clay core wall, belonging to methods for constructing novel dams at areas which are rich in water resources and soil materials and are suitable for constructing the dams by the local materials. The method includes the following steps: (1) clearing filling bedding surfaces; (2) laying highly plastic clay belts on the filling bedding surfaces, and laying gravel and soil core walls among the highly plastic clay belts; and (3) rolling and compacting the highly plastic clay belts and the gravel and soil core walls. The method is suitable for using the highly plastic clay to construct the gravel and soil core walls of anti-seepage bodies of the dams, and the dams which are constructed by the method through filling can meet the requirements of designed functions and the requirement on deformation.

Description

(1) Technical field: [0001] A construction method for a high plastic clay core wall, which is mainly used in areas with underdeveloped domestic traffic conditions, harsh construction environment and weather conditions, rich water resources, and abundant soil materials, which are suitable for building local material dams Emerging dam-type construction methods. (two) background technology: [0002] The gravel soil core dam is the first 100-level rockfill high dam constructed in China, and its anti-seepage body is composed of gravel soil and high plasticity clay. High plasticity clay is clay with low liquid limit. After taking multiple precipitation measures, the water content is still much higher than the design requirement, and the actual filling water content is 24% to 29%. There is no direct similar filling experience in China. The "thin-layer light rolling" rolling test is used first, that is, the laying thickness of high-plastic clay is 15cm-20cm, and the weight of rolli...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E02B7/06E02B7/08
Inventor 何福江刘福友莫永彪孟开平
Owner SINOHYDRO BUREAU 7 CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap