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Open pit coal mine slope treatment method
The open pit coal mine slope treatment method comprises the following steps that a slope is evenly divided into a plurality of cells, and a first drill hole and a second drill hole are formed in each cell at intervals; vertically drilling from the first drilling hole to form a first vertical well, lowering a first screen pipe into the first vertical well, obliquely drilling from the second drilling hole to form a first inclined well, and enabling the end part, far away from the second drilling hole, of the first inclined well to be in butt joint with the end part, far away from the first drilling hole, of the first vertical well, after butt joint, a second screen pipe is lowered into the first inclined shaft; and grouting is conducted on the first vertical well and the first inclined well. Therefore, the grout can be injected into cracks and gaps of the side slope, so that unconsolidated layers, gaps and the like of the side slope are tighter, the overall strength and anti-skid performance of the side slope are improved, the bearing capacity of soil is effectively improved, the compactness of the soil at all positions of the side slope is more uniform, and the service life of the side slope is prolonged. Therefore, side slope deformation and settlement caused by unbalanced bearing of the slope top foundation and the slope toe foundation are reduced.
本公开涉及一种露天煤矿边坡治理方法，包括以下步骤：将边坡均匀划分成多个单元格，在每个单元格内间隔开设第一钻孔和第二钻孔；从所述第一钻孔处垂直钻井形成第一直井，向所述第一直井内下放第一筛管，从所述第二钻孔处倾斜钻井形成第一斜井，使所述第一斜井的远离第二钻孔的端部和所述第一直井的远离第一钻孔的端部相对接，对接后向所述第一斜井内下放第二筛管；对所述第一直井和所述第一斜井进行注浆。这样，可以将浆液注入边坡的裂隙、缝隙中，使得边坡松散层、缝隙处等地更加紧密，提高边坡的整体强度和抗滑性能，使得土体的承载能力得到有效提高，边坡各处土体紧密度更加均匀，从而减小坡顶与坡趾地基承载不均衡引起的边坡变形和沉降。
Open pit coal mine slope treatment method
The open pit coal mine slope treatment method comprises the following steps that a slope is evenly divided into a plurality of cells, and a first drill hole and a second drill hole are formed in each cell at intervals; vertically drilling from the first drilling hole to form a first vertical well, lowering a first screen pipe into the first vertical well, obliquely drilling from the second drilling hole to form a first inclined well, and enabling the end part, far away from the second drilling hole, of the first inclined well to be in butt joint with the end part, far away from the first drilling hole, of the first vertical well, after butt joint, a second screen pipe is lowered into the first inclined shaft; and grouting is conducted on the first vertical well and the first inclined well. Therefore, the grout can be injected into cracks and gaps of the side slope, so that unconsolidated layers, gaps and the like of the side slope are tighter, the overall strength and anti-skid performance of the side slope are improved, the bearing capacity of soil is effectively improved, the compactness of the soil at all positions of the side slope is more uniform, and the service life of the side slope is prolonged. Therefore, side slope deformation and settlement caused by unbalanced bearing of the slope top foundation and the slope toe foundation are reduced.
本公开涉及一种露天煤矿边坡治理方法，包括以下步骤：将边坡均匀划分成多个单元格，在每个单元格内间隔开设第一钻孔和第二钻孔；从所述第一钻孔处垂直钻井形成第一直井，向所述第一直井内下放第一筛管，从所述第二钻孔处倾斜钻井形成第一斜井，使所述第一斜井的远离第二钻孔的端部和所述第一直井的远离第一钻孔的端部相对接，对接后向所述第一斜井内下放第二筛管；对所述第一直井和所述第一斜井进行注浆。这样，可以将浆液注入边坡的裂隙、缝隙中，使得边坡松散层、缝隙处等地更加紧密，提高边坡的整体强度和抗滑性能，使得土体的承载能力得到有效提高，边坡各处土体紧密度更加均匀，从而减小坡顶与坡趾地基承载不均衡引起的边坡变形和沉降。
Open pit coal mine slope treatment method
露天煤矿边坡治理方法
ZHANG LEI (author) / AN WEITAO (author) / ZHANG YUEHENG (author) / ZHANG SHUNFENG (author) / ZHAO WEI (author)
2024-06-04
Patent
Electronic Resource
Chinese
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