Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
IN-SITU SOAKING TEST APPARATUS FOR UNSATURATED SOIL
PROBLEM TO BE SOLVED: To provide an in-situ soaking test apparatus for unsaturated soil of a simple configuration capable of soaking water smoothly to a predetermined depth of soil in an unsaturated region, thereby allowing data for clarifying penetration characteristics of the soil in the unsaturated region efficiently.SOLUTION: An in-situ soaking test apparatus for unsaturated soil is for obtaining data on water content ratio of soil in an unsaturated region, and includes: a watertight water injection lid 11 of a protruded form having an opening surface on an undersurface, installed on a ground surface 30a with a tightly adhering material 17 laid in between, the watertight water injection lid having an outer peripheral part adhered to be watertight; a soil moisture meter 12 having a plurality of moisture sensors 12a, extending downward from a central part of the watertight water injection lid 11 and inserted and installed in the ground; and a feed water pump 15 communicating with inside of the watertight water injection lid 11 via a feed pipe 13 and a return pipe 14, the feed water pump supplying pressurized water into the watertight water injection lid 11, while keeping the water tight water injection lid 11 filled with pressurized water and circulating pressurized water between the feed water pump and a feed water tank 16.SELECTED DRAWING: Figure 1
【課題】簡易な構成によって、不飽和領域の地盤の所定の深さまでよりスムーズに水を浸透させて、不飽和領域の地盤の浸透特性を把握するためのデータを、効率良く得ることのできる原位置不飽和透水試験装置を提供する。【解決手段】不飽和領域の地盤の水分含水率に関するデータを取得する原位置不飽和透水試験装置であって、敷設密着材１７を介在させて地表面３０ａに外周部分を水密に密着させた状態で設置される、下面が開口面となった凸形状の密閉注水蓋１１と、この密閉注水蓋１１の中央部分から下方に延設して地中に挿入配置される、複数の水分センサー１２ａを備える土壌水分計１２と、密閉注水蓋１１の内部と送り管１３及び戻り管１４を介して連通して、密閉注水蓋１１の内部に圧力水を満たした状態で、給水タンク１６との間で圧力水を循環させながら圧力水を密閉注水蓋１１の内部に供給する、給水ポンプ１５とを含んで構成される。【選択図】図１
IN-SITU SOAKING TEST APPARATUS FOR UNSATURATED SOIL
PROBLEM TO BE SOLVED: To provide an in-situ soaking test apparatus for unsaturated soil of a simple configuration capable of soaking water smoothly to a predetermined depth of soil in an unsaturated region, thereby allowing data for clarifying penetration characteristics of the soil in the unsaturated region efficiently.SOLUTION: An in-situ soaking test apparatus for unsaturated soil is for obtaining data on water content ratio of soil in an unsaturated region, and includes: a watertight water injection lid 11 of a protruded form having an opening surface on an undersurface, installed on a ground surface 30a with a tightly adhering material 17 laid in between, the watertight water injection lid having an outer peripheral part adhered to be watertight; a soil moisture meter 12 having a plurality of moisture sensors 12a, extending downward from a central part of the watertight water injection lid 11 and inserted and installed in the ground; and a feed water pump 15 communicating with inside of the watertight water injection lid 11 via a feed pipe 13 and a return pipe 14, the feed water pump supplying pressurized water into the watertight water injection lid 11, while keeping the water tight water injection lid 11 filled with pressurized water and circulating pressurized water between the feed water pump and a feed water tank 16.SELECTED DRAWING: Figure 1
【課題】簡易な構成によって、不飽和領域の地盤の所定の深さまでよりスムーズに水を浸透させて、不飽和領域の地盤の浸透特性を把握するためのデータを、効率良く得ることのできる原位置不飽和透水試験装置を提供する。【解決手段】不飽和領域の地盤の水分含水率に関するデータを取得する原位置不飽和透水試験装置であって、敷設密着材１７を介在させて地表面３０ａに外周部分を水密に密着させた状態で設置される、下面が開口面となった凸形状の密閉注水蓋１１と、この密閉注水蓋１１の中央部分から下方に延設して地中に挿入配置される、複数の水分センサー１２ａを備える土壌水分計１２と、密閉注水蓋１１の内部と送り管１３及び戻り管１４を介して連通して、密閉注水蓋１１の内部に圧力水を満たした状態で、給水タンク１６との間で圧力水を循環させながら圧力水を密閉注水蓋１１の内部に供給する、給水ポンプ１５とを含んで構成される。【選択図】図１
IN-SITU SOAKING TEST APPARATUS FOR UNSATURATED SOIL
原位置不飽和透水試験装置
MORITA SHUJI (Autor:in) / IMAIZUMI KAZUTOSHI (Autor:in) / MISAWA TAKASHI (Autor:in)
11.04.2016
Patent
Elektronische Ressource
Japanisch
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Prediction of soil collapse from trench soaking test data
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Influence of Test Conditions on Volume Change Characteristics of Unsaturated Soils after Soaking
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