Pile-Bottom Grouting Technology for Bored Cast-in-Situ Pile Foundation

2004 ◽  
Author(s):  
Zhiguo Zhang ◽  
Tiejun Lu ◽  
Yucheng Zhao ◽  
Jingchun Wang ◽  
Youdao Li
Keyword(s):  
Pile Foundation

Pile Foundation In Situ Test in Seaside Soil-Squeezing Backfill Zone

2015 ◽  
Vol 724 ◽  
pp. 84-87
Author(s):  
Li Bo Liu ◽  
Hai Bo Li ◽  
Ya Qun Liu
Keyword(s):  
Pile Foundation ◽  
Stress Test ◽  
Small Strain ◽  
Engineering Parameters ◽  
Geotechnical Tests ◽  
Rock And Soil ◽  
Bearing Layer ◽  
Settlement Monitoring

Design and construction of pile foundation in seaside zone face the specific geotechnical conditions. The in-situ geotechnical tests need to be conducted. The quality feature of the piles is assessed according to the results of in-situ small strain test, coring test and pile stress test. For different depth of rock and soil stratum and pile bearing layer, the trial pile stress distribution results and follow-up stress and settlement monitoring provide engineering parameters for design and pile-driving.

The Engineering Accident Analysis of Cast-In Situ Bored Pile

2012 ◽  
Vol 446-449 ◽  
pp. 1514-1519
Author(s):  
Bin Tang ◽  
Ting Wang ◽  
Zi Ning Shan
Keyword(s):  
Pile Foundation ◽  
Bridge Engineering ◽  
Foundation Engineering ◽  
Construction Process ◽  
Floating Pile ◽  
Bored Pile ◽  
Wrong Identification ◽  
Catheter Tube ◽  
The Impact

Abstract: Cast-in situ bored pile is a common form of pile foundation and widely used in road and bridge engineering in China. Because of complex cast-in situ bored pile construction process, high technical content requirement, vulnerable to the impact of human and environmental factors, cast-in situ bored piles prone to various kinds of quality problems in the construction process, such as drilling deflection, drilling hole collapse and diameter reduction, wrong identification of pile-end’s bearing stratum, catheter tube blockage, reinforcement cage floating, pile breaking, pile silted, etc. These problems often make it difficult to meet the design requirements into a pile formation, and difficultly to remedy. In this paper, Zhoutian Zhenjiang bridge at Shaoguan City, Qujiang to Nanxiong highway A03 contract bid package cast-in situ bored pile foundation engineering encountered in the construction collapsed hole, inclined hole, catheter tube blockage and other issues for example to analyzes the cause of cast-in situ bored pile engineering accident, made appropriate preventive measures and processing method.

Synthesis Experimental Study on the Supporting Capacity of the Strongly Weathered Diorite in Jinan Area

2011 ◽  
Vol 105-107 ◽  
pp. 844-847
Author(s):  
Min Shang ◽  
Qiang Xu ◽  
Yi Guo Xue
Keyword(s):  
Mechanical Properties ◽  
Pile Foundation ◽  
Physical And Mechanical Properties ◽  
Special Kind ◽  
Office Building ◽  
Social Benefits ◽  
Burial Depth ◽  
Foundation Treatment ◽  
Natural Foundation

The strongly weathered rock zone is a special kind of rocks and soils mass. For its larger burial depth and low utilization of natural foundation, the physical and mechanical properties of the strongly weathered diorite were grasped poorly. In the article, the normal investigation together with test in-situ has been applied in the project. The physical and mechanical properties of the strongly weathered diorite were analyzed deeply by the methods of field exploration, laboratory test and testing in-situ. It is feasible for the intensively weathered diorite to serve as natural foundation after lucubrate research and the evaluation of bearing capacity and settlement deformation in the project of the office building of China Industrial and Commercial Bank, Shandong Branch..It is proved from practice that the item of foundation treatment saved about two million Yuan compared with the pile foundation. Moreover it speeded up the process of the construction enormously, lessened the difficulty of the construction and obtained tremendous economic and social benefits.

scholarly journals Cast-in-situ piles encasements based on oil-bituminous rocks (kirs) in saline soils

2021 ◽  
Vol 30 (1) ◽  
pp. 51-61
Author(s):  
Bulat Unaibayev ◽  
Violetta Andreyachshenko
Keyword(s):  
Pile Foundation ◽  
Lower Cost ◽  
Elevated Temperatures ◽  
Saline Soils ◽  
Natural Bitumen ◽  
Mechanical Grinding ◽  
Aqueous Salt Solutions ◽  
Small Parts

A technology of building a pile foundation in saline soils with a protective and load-bearing shell based on bituminous rocks (kirs) is proposed that makes it possible to eliminate water permeability, to increase suffusion resistance and bearing capacity of the soil, as well as durability. The method of extracting natural bitumen from bituminous rocks (kirs) is based on the ability of kirs to self-grind or disintegrate into small parts at elevated temperatures in aqueous salt solutions. The proposed method excludes mechanical grinding and allows reducing the consumption of reagents and improving the quality of extracted natural bitumen. The compositions of the obtained mastics based on natural bitumen are not inferior in their properties to the known compositions of waterproofing cold mastics based on industrial bitumen at a lower cost.

Analysis for Forced Vibration Test on Proto-Type Pile Foundation in Tsip

2005 ◽  
Vol 21 (4) ◽  
pp. 267-275 ◽  
Author(s):  
Yung-Yen Ko ◽  
Huei-Chun Chu ◽  
Cheng-Hsing Chen
Keyword(s):  
Forced Vibration ◽  
Pile Foundation ◽  
High Speed ◽  
Test Method ◽  
High Speed Rail ◽  
In Situ Test ◽  
Vibration Tests ◽  
Foundation Type ◽  
Method Analysis

AbstractA series of forced vibration tests were conducted on a proto-type pile foundation which is built in the Tainan Science-Based Industrial Park and is modeled on the foundation type of Taiwan High Speed Rail. The test method, analysis procedure and results of test are briefly introduced in this paper. Besides, a finite element method by using the computer program ABAQUS is used to simulate the test. Results obtained are in good agreement with the results of in-situ test, and both are helpful for understanding the characteristics of the ground responses of the site and for identification of the soil-structure interaction of Taiwan High Speed Rail foundation system.

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