Hirakazu SEKI’s research while affiliated with Kanazawa University and other places

What is this page?


This page lists works of an author who doesn't have a ResearchGate profile or hasn't added the works to their profile yet. It is automatically generated from public (personal) data to further our legitimate goal of comprehensive and accurate scientific recordkeeping. If you are this author and want this page removed, please let us know.

Publications (4)


Field tests on improvement effects of fracture grouting in residential areas
  • Article

June 2010

·

17 Reads

·

4 Citations

AIJ Journal of Technology and Design

Toru TAKATA

·

Hirakazu SEKI

·

·

[...]

·

Keisuke IMAI

This paper reports the results of confirmation tests aiming at understanding the strength characteristics of ground improved by fracture grouting. It was found that the improvement effect of the fracture grouting could be obtained with less quantity of grout materials as compared to the conventional grouting method, although the test cases are limited. In addition, the paper describes the applicability of the grouting method to housing sites.



Damage of Houses and Residential Areas by Niigata Prefecture Earthquakes (Part 1)

January 2008

·

18 Reads

·

1 Citation

The earthquakes of Chuetsu (2004) and Chuetsu offshore (2007) in Niigata Prefecture caused frequent slope failures, landslides and ground liquefaction, and numerous instances of ground-induced damage to houses and residential areas were noted. In many cases, damage from liquefaction occurred not only on reclaimed land in coastal areas but also on residential areas where river channels had been filled. This research investigates the characteristics and propensities of liquefaction damage to houses and residential areas. Case histories of damage are analyzed, and the current state of aseismic capacity evaluations of residential areas in Japan and future issues are reported.


Damage of houses and residential areas by niigata prefecture earthquakes (Part2)

January 2008

·

33 Reads

·

2 Citations

The earthquakes of Chuetsu (2004) and Chuetsu offshore (2007) in Niigata Prefecture, caused liquefaction at many locations, and also caused damages on the residences and the residential areas due to the failure of ground. In the future, the judgment of liquefaction on housing site will become important and it will be thought that the upgrade of soil investigation and liquefaction countermeasure is necessary. In Japan, Swedish weight sounding (SWS) has been widely used in soil investigation on residential areas. Based on the result of SWS, the bearing capacity of ground can be obtained. However, the judgment of liquefaction is not obtained. This paper reports results of SWS, boring investigation, standard penetration test (SPT), and three component cone penetration test (CPT) on the housing site which caught the liquefaction damage by the earthquake of Chuetsu offshore (2007) in Niigata Prefecture. In addition, it reports the applicability of the CPT on the housing site of Japan. Copyright© 2008 by The International Society of Offshore and Polar Engineers (ISOPE).

Citations (2)


... (1) Grouting reinforcement Many studies have analyzed the mechanism of action of different grou and proposed corresponding application conditions, but most have been aim grouting method [102][103][104][105][106] (Figure 18a). Because the traditional grouting most empirical, performance and reliability of grouting plus solids is diffic tee, and cases of water inrush due to grouting failure occur from time to ti the Seikan Tunnel [107]. With the traditional single grouting method it is di the performance index requirements of reliable formation reinforcement i geological areas. ...

Reference:

Unfavorable Geology and Mitigation Measures for Water Inrush Hazard during Subsea Tunnel Construction: A Global Review
Field tests on improvement effects of fracture grouting in residential areas
  • Citing Article
  • June 2010

AIJ Journal of Technology and Design

... The relation stated by Inada [9], subject to various kinds of modifications [18], [37], [34], has been used for interpreta-tion of results since the early 1960's. The probe was used, among others, in Turkey [34], Iran [7], [31], India [32], Sumatra [17] and Japan [13], [15], [28], [33], [35], and more recently in New Zealand, in conjunction with the strong earthquake which struck the country in 2010 [2], [3], [29], [36]. Despite the fact that the probe has already been in use for almost 100 years, no standard data interpretation rules have been developed so far (except for a small group of non-cohesive soils) [25]. ...

Damage of houses and residential areas by niigata prefecture earthquakes (Part2)
  • Citing Article
  • January 2008