선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- 23 measuring instnunents at the anchor. In order to measure the axial force of anchor as a major or measuranent item, \\Wle inclinometers were installed in order to investigate lateral displacement of earth retaining walls and the inverted ground during the constructioa And in order to survey the changes of underground water level during the excavation stage and ground waterlevel gauge were installed near the inclinomete.
- In this research, the behaviors characteristics of earth retmning walls were investigated by load cell installing total 23 measuring instnunents at the anchor. In order to measure the axial force of anchor as a major or measuranent item, \\Wle inclinometers were installed in order to investigate lateral displacement of earth retaining walls and the inverted ground during the constructioa And in order to survey the changes of underground water level during the excavation stage and ground waterlevel gauge were installed near the inclinomete.
- Accordingly the calculation of lateral earth pressure at the colluvial soil in mountain topography with deep depth based on existing researches may generate unreasonable results. Therefore the purposes of this research are to prepare quantitative standard by compiling measurement data at the time of excavation works of colluvial soil at the tunnel pit mouth eea with which the stability of earth retaining structures can be judged and also to suggest the lateral earth pressure given to the earth retaining wall through the comparison and analysis of theoretical earth pressure and empirical earth pressure based on earth pressure by utilizing measurement data at the time of installation of earth retaining structures.
대상 데이터
- Post piles(H-Pile, 300 x 300 x 10 x 15) were used for earth retaining structures while supporting method of earth retaining dry wall was on anchored support basis with anchor installation angle of 30° and the number of steel wire of 4-6 are installed. H-beam steel was used for eartii retaining wall with the dimension of 350 x 350 x 12 x 9. The status of earth retaining structures and their cross section diagram is shown in the Fig.
- This research site is located from Sannai-myeon Milyang city to Sangbuk-myeon Ulsan Metropolitan City, and earth retaining structures were constructed at the beginning part of tunnel pit mouth among the tunnel work districts of total length of 4, 580 m which pass through Sanoe-myeon and Sangbuk- myeon. The depth of colluvium layer of the object area for this research is 0.
이론/모형
- 3 shows the prediction results of lateral earth pressure converted from measured anchor's axial load. Lateral earth pressures are calculated at each excavation stage using mid-point partition method. In order to illustrate the distribution of lateral earth pressure acted on the anchored earth retaining wall which was calculated as such, the elapsed days was plotted in the horizontal axis while lateral the earth pressure derived from anchor's axial load are on the vertical axis.
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