Method for enhancing pulling-resistant and tensile-resistant capability of soft and weak soil layer anchor rod/anchor rope
A technology for soft soil layers and anchor rods, which is applied in the field of enhancing the pull-out and tensile capabilities of anchor rods/cables in weak soil layers, and enhancing the pull-out and tensile capabilities of anchor rods/cables in soil layers. The anchor cable structure has weak pull-out and pull-out capabilities, and achieves the effects of solving mud pollution, prolonging the service life, and enhancing pull-out and pull-out capabilities
Inactive Publication Date: 2011-01-19
凌光荣 +1
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[0006] The invention provides a method for enhancing the pullout and tensile capacity of the anchor rod / cable in the weak soil layer aiming at the weak pullout and tensile capacity of the anchor rod / cable structure in the weak soil layer
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[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0032] figure 1 It is a schematic flow chart of the method for enhancing the pullout resistance and tension resistance of anchor rods / cables in weak soil layers according to the present invention. Such as figure 1 As shown, the method for enhancing the pullout resistance and tensile capacity of the weak soil layer anchor rod / cable may further comprise the steps:
[0033] Step 10, using pile-forming equipment and grouting equipment to evenly stir the soil and the curing agent in the weak soil layer to form a stirring pile with a diameter greater than 300 mm.
[0034] The pile-forming equipment is a deep mixing pile drilling rig, a high-pressure rotary spraying machine or a drilling rig. The curing agent is cement....
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The invention relates to a method for enhancing pulling-resistant and tensile-resistant capability of a soft and weak soil layer anchor rod / anchor rope. The method comprises the following steps: evenly stirring soil body and a solidifying agent in the soft and weak soil layer by using pile-forming equipment and grout injecting equipment, and forming a stirring pile; drilling holes at the positionof a central shaft in a stirring pile by using drilling equipment when unconfined compressive strength of the stirring pipe reaches 0.7MPa to 1.5MPa, and cleaning detritus in the holes; and placing the anchor rod / anchor rope rod body embedded with a grout injecting pipe into the bottom of the holes, and carrying out grout injection from the hole bottom to top to form the pulling-resistant and tensile-resistant anchor rod / anchor rope. The method solves the problem that the soil layer anchor rod / anchor rope can not be used in soft soil areas, solves a series of problems of slurry pollution, long construction period, complex technique, high cost and the like due to pile injecting by the use of the pulling-resistant drilling and solves the problems of easy corrosion and nondurability of a reinforced pile anchor.
Description
technical field [0001] The invention relates to a method for enhancing the pull-out resistance and tensile capacity of an anchor rod / anchor cable in a soil layer, in particular to a method for enhancing the pull-out resistance and tensile capacity of an anchor rod / anchor cable in a weak soil layer, and belongs to the field of civil engineering. Background technique [0002] Traditional soil anchors / cables, especially permanent anchors / cables, cannot be installed in untreated organic soil, soil layers with a liquid limit greater than 50% and soil layers with a relative density less than 0.3; in soft soil areas Pull-resistant bored piles have problems such as mud pollution, long construction period, complicated process, and high cost; the reinforced cement-soil pile anchor technology cannot solve the corrosion problem of the rod body. [0003] The existing bolt hole-forming equipment can only drill holes with a diameter of less than 300 mm. The contact area between the grouted...
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IPC IPC(8): E02D5/74
Inventor 凌光荣高梓旺
Owner 凌光荣