Method for enhancing pulling-resistant and tensile-resistant capability of soft and weak soil layer anchor rod/anchor rope

A technology for weak soil layer and anchor rod is applied in the field of enhancing the pull-out and tensile capacity of the anchor rod/anchor cable in the soil layer, and in the field of enhancing the pull-out and tensile capacity of the anchor rod/anchor cable in the weak soil layer. The problem of weak pull-up and pull-proof capacity of the anchor cable structure can achieve the effect of solving the mud pollution, prolonging the service life, and enhancing the pull-proof and pull-proof capacity.

Inactive Publication Date: 2010-02-10
凌光荣 +1
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  • Abstract
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Problems solved by technology

[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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  • Method for enhancing pulling-resistant and tensile-resistant capability of soft and weak soil layer anchor rod/anchor rope
  • Method for enhancing pulling-resistant and tensile-resistant capability of soft and weak soil layer anchor rod/anchor rope
  • Method for enhancing pulling-resistant and tensile-resistant capability of soft and weak soil layer anchor rod/anchor rope

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Embodiment Construction

[0031] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples cited are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0032] figure 1 It is a schematic flow chart of the method for enhancing the pull-out resistance and tensile resistance of the anchor rod / cable in the weak soil layer of the present invention. Such as figure 1 As shown, the method for enhancing the pull-out resistance and tensile resistance of an anchor rod / anchor cable in a weak soil layer includes the following steps:

[0033] Step 10. Use pile forming equipment and grouting equipment to mix the soil and curing agent evenly in the soft soil layer to form a mixing pile with a diameter greater than 300 mm.

[0034] The pile forming equipment is a deep mixing pile drilling rig, a high pressure rotary jet grouting machine or a drilling rig. The curing agent is cement. The shape ...

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Abstract

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, longconstruction 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 and tensile capabilities of an anchor rod / anchor cable in a soil layer, in particular to a method for enhancing the pull-out and tensile capability 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 / anchor cables, especially permanent anchors / anchor cables, cannot be installed in untreated organic soil, soil layers with liquid limit greater than 50%, and soil layers with relative density less than 0.3; in soft soil areas The uplift bored pile has the problems of 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, and the contact area between the grouting body formed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/74
Inventor 凌光荣高梓旺
Owner 凌光荣
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