Anchor rod construction method for soil body and anchor rod assembly used thereof
A construction method and anchor construction technology, which are applied in basic structure engineering, construction, sheet pile wall and other directions, can solve the problems of small anchorage diameter, complex process and increased cost, and achieve the effect of shortening construction period, simplifying process and reducing cost.
Inactive Publication Date: 2004-02-25
李鹤
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Problems solved by technology
[0002] In the past, the construction of the traditional soil anchor rod included drilling, lowering the anchor bar, and performing multiple grouting, which was a complicated process.
For the loose and weak soil rich in water, the traditional anchor rod is like inserting nails into a tofu block, which cannot form a hole, including accidents such as thixotropic liquefaction, sandblasting pipes, etc. For this reason, people often choose to lower the casing and then drill the hole , down into the anchor bar, and perform multiple grouting, which makes the process itself more complicated and further increases the cost. In addition, the above-mentioned process has the disadvantages of large pollution and small anchor diameter
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[0025] As an example of the construction method of the soil anchor rod of the present invention, in figure 1 Shown in the 1st stage, at first, set up drilling rig 13, will have the special-purpose anchor bar assembly A (such as Figure 4 ~6) is assembled on the front end of the hollow drill rod 9 in a detachable manner, and drilled in the soil, because the anchor rod assembly A has blades 2 (such as Figure 4 As shown), it is equivalent to the effect of the drill bit, so that under the action of the drill rod 9 rotating and the blade 2 stirring the soil, it can quickly drill into the soil. This process is as follows figure 2 In the second stage shown, the process of cement mixing can be carried out, that is, while drilling, cutting the soil body, while pouring cement slurry through the grouting hole 3 in the anchor rod assembly A, and at the same time passing the above-mentioned blade 2 to cut the soil mass. The soil and the cement slurry are mixed together. When drilling to...
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The anchor rod construction process includes the steps of: assembling the detachable anchor rod assembly with anchor ribs to the front end of drilling rod; rotating the drilling rod to set the said anchor rod assembly into soil and to required position while drilling hole; depositing solidifying liquid via the hollow passage in the drilling rod to the bottom of the hole to form large head for anchoring; and separating the anchor rod assembly from the front end of the drilling rod so as to withdrawing the drilling rod while retaining the anchor rod assembly inside the hole.
Description
technical field [0001] The invention relates to the field of civil engineering, in particular to a construction technology for retaining soil, an underground continuous wall, and foundation pit support, which can resist tension and pull out in soil layers to form anchor rods. Background technique [0002] In the past, the construction of the traditional soil anchor rod included drilling, lowering the anchor bar, and performing multiple grouting, and the process was complicated. For the loose and weak soil rich in water, the traditional anchor rod is like inserting nails into a tofu block, which cannot form a hole, including accidents such as thixotropic liquefaction, sandblasting pipes, etc. For this reason, people often choose to lower the casing and then drill the hole , down into the anchor bar, and perform multiple grouting, which makes the process itself more complicated and further increases the cost. In addition, the above-mentioned process has the disadvantages of la...
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IPC IPC(8): E02D5/76
Inventor 李鹤李宪奎
Owner 李鹤