First-embankment and second-well construction method
A construction method and embankment-first technology, applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve problems such as affecting drainage, sewage and use functions, affecting driving safety and driving comfort, increasing maintenance frequency and maintenance costs, etc. , to improve the efficiency of mechanical operation, reduce the damage rate, and reduce the impact load.
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Embodiment 1
[0056] A construction method of embankment first and then well, comprising the following steps:
[0057] 1) Construct the embankment, pipeline and bottom of the well, and close the bottom of the well after the construction;
[0058] 2) Add a well bottom cover plate to the closed well bottom, and measure and position the center of the added well bottom cover plate;
[0059] 3) Construct the subgrade and pavement base. After the construction is completed, measure and locate the well to be dug according to the center position of the well bottom cover plate located in step 2), and drill the well hole at the well to be dug until the well bottom cover plate is taken out and the bottom of the well is cleaned. Close the mouth, add cement mortar to the cleaned well bottom;
[0060] 4) Install the wellbore at the bottom of the well (that is, the well pipe, the wellbore is spliced and combined by the well pipe), measure the elevation of the wellbore after the installation is completed...
Embodiment 2
[0066] On the basis of embodiment 1, further, the well bottom cover plate and the well pipe are symmetrically provided with a plurality of hoisting holes. Lifting holes allow for easy assembly. Preferably, there are 2 hoisting holes on the well bottom cover plate, and the diameter of the hoisting holes is 6cm. The structure is simple and can be hoisted smoothly during use; in actual use, the number and size of the hoisting holes can be selected according to the actual situation to meet the hoisting needs. .
[0067] The concrete strength of the well bottom cover is C30, the diameter is the outer diameter of the well pipe plus 10CM, the thickness of the reinforcement and the bottom cover is subject to the technical parameters provided by the design unit; for wells below 120cm, the thickness of the bottom cover is 30-35CM , use double-layer 14 threaded steel reinforcement; the well bottom cover plate has high strength, which can withstand the impact force of vehicles on it afte...
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