对场地密封沟周边进行探摸，确定粘土止水帷幕的深度和位置，止水帷幕采用双

Explore the periphery of the site's sealing ditch to determine the depth and position of the clay water-stop curtain. The water-stop curtain adopts double-row clay seal wall with an effective thickness of about 1 m and a depth of about 8-9 m. <br>The method of exploration is to arrange the exploration points at a distance of 50 m on the midline of the construction of the mixing piles. The areas where the depth of the permeable layer changes greatly or there are medium and coarse sand layers are arranged at a distance of 20 m. After the exploration is completed, the construction drawing of the mixing pile is arranged and drawn to make a reference map for the construction depth of the slurry mixing pile.

To explore the perimeter of the site sealing ditch, determine the depth and position of the clay water curtain, the stop curtain using a double row of clay sealwall, the effective thickness of about 1 m, depth of about 8 to 9 m.<br>The method of exploration is to lay the exploration point according to the 50 m spacing on the mid-line of the stirring pile construction, the depth of the permeable layer changes greatly or the area where the coarse sand layer exists, and the distance of the exploration point is arranged according to the 20 m spacing. After the exploration, the construction drawing of the mixing pile is arranged to make the deep reference map of the mud mixing pile construction.

The depth and position of the clay water stop curtain shall be determined by exploring the surrounding of the site sealing ditch. The double row clay sealing wall shall be used for the water stop curtain, with an effective thickness of about 1 m and a depth of about 8-9 M.<br>The exploration method is to arrange the exploration points on the middle line of the mixing pile construction according to the spacing of 50m. For the areas where the depth of permeable layer changes greatly or there is medium coarse sand layer, the exploration point distance is arranged according to the spacing of 20m. After the exploration, the construction drawing of the mixing pile shall be arranged and drawn to make the reference drawing of the construction depth of the mud mixing pile.<br>