公开(公告)号：US3839871A

公开(公告)日：1974-10-08

申请号：US35980473

申请日：1973-05-14

Applicant: DRESSER IND

Inventor： DYER N ,  WALKER R ,  ARRINGTON T

IPC: E02D5/20 ,  E02D37/00 ,  E02D29/00

CPC classification number: E02D5/20 ,  E02D37/00

Abstract: An earthen dam is repaired without draining the water from the lake behind the dam and without disturbing the integrity of the earthen dam. A first hole is bored into the dam. As the hole is being drilled, drilling mud is circulated through the hole to remove cuttings and to maintain the integrity of the earthen dam. The first hole is lined with a casing. A second hole is bored into the earthen dam immediately adjacent and partially overlapping the first hole. The boring of the second hole disintegrates a portion of the casing in the first hole providing an interconnection between said first hole and said second hole. Drilling mud is circulated in the second hole during the boring of said second hole to remove cuttings and to maintain integrity of the earthen dam. The second hole is lined with a casing and the first hole is filled with concrete. The concrete displaces the drilling mud in the first hole and the concrete will not enter the second hole because of the lining in the second hole. By repeatedly drilling holes in the aforementioned manner, a monolithic fluid impervious underground wall is constructed along the center of the dam thereby substantially reinforcing the earthen dam.

Abstract translation: 一个土坝被修复，不会从大坝后面的湖里排水，也不会扰乱土坝的完整性。 第一个洞无聊进入大坝。 当钻孔时，钻孔泥浆通过孔循环以除去切屑并保持泥土的完整性。 第一个孔内有一个外壳。 一个第二个洞钻进了土坝，紧邻着第一个洞。 所述第二孔的钻孔使所述第一孔中的所述壳体的一部分分解，从而在所述第一孔和所述第二孔之间形成互连。 在所述第二孔的钻孔期间，钻井泥浆在第二孔中循环以除去切屑并保持泥土的完整性。 第二个孔衬有一个套管，第一个孔填充混凝土。 混凝土取代第一个孔中的钻井泥浆，由于第二个孔中的衬里，混凝土不会进入第二个孔。 通过以上述方式反复钻孔，沿着坝的中心构建整体式不透液体的地下壁，从而基本上加强了土坝。