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Vertical shaft overall pouring section walling crib and vertical shaft overall pouring section walling crib construction method

A technology of integral pouring and construction method, which is applied in shaft equipment, earthwork drilling, wellbore lining, etc., and can solve problems such as small curtain radius, difficulty in the position of the final hole beyond the wild diameter range, poor grouting effect, etc.

Inactive Publication Date: 2015-04-22
CHINA COAL ENERGY HEILONGJIANG COAL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the water-exploring drilling rig arranged in the prior art can only be located inside the inner wall of the wellbore. Under a certain drilling inclination angle, the position of the final hole is difficult to exceed the range of the barren diameter, and the radius of the formed curtain is small. A construction method for the wall seat of the integral pouring section of the vertical shaft and the wall seat of the integral pouring section of the vertical shaft due to the problem of poor effect

Method used

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  • Vertical shaft overall pouring section walling crib and vertical shaft overall pouring section walling crib construction method

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specific Embodiment approach 1

[0025] Specific implementation mode one: combine figure 1 To illustrate this embodiment, a vertical shaft integral casting section wall seat described in this embodiment includes a well outer wall 1, a well inner wall 2, a well wall seat 3, two water detection orifice pipes 4 and a grout stop pad 5, two water detection The orifice pipes 4 are respectively buried in the grout stop pad 5, the well wall seat 3 is connected with the outer wall of the well, the bottom end surface of the well wall seat is flush with the bottom end surface of the inner wall 2 of the well, the inner wall 2 of the well is connected with the outer wall 1 of the well, and the upper end surface of the inner wall 2 is It is flush with the upper surface of the outer wall of the well; the outer wall 1 of the well, the inner wall of the well 2 and the wall seat 3 of the well are made of concrete and steel bars.

[0026] The effect of this implementation mode:

[0027] The basic plan of this embodiment is to ...

specific Embodiment approach 2

[0031] Embodiment 2: This embodiment is different from Embodiment 1 in that: the height of the well outer wall 1 is the freezing depth of the shaft or the height of the designed casing wall section is designed according to the actual geological conditions; the inner diameter H4 of the well outer wall 1 is 6m ~12m; the wall thickness H8 of the well outer wall 1 is 0.35~0.6m. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0032] Specific embodiment three: this embodiment differs from specific embodiment one or two in that: the well inner wall 2 is the freezing depth of the well bore or the height of the designed casing wall section; the inner diameter of the well inner wall 2 (well shaft net diameter) H6 is 5m to 10m ; The wall thickness H7 of the well inner wall 2 is 0.5-1.0m. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention provides a vertical shaft overall pouring section walling crib and a vertical shaft overall pouring section walling crib construction method. The problems that a water detection drilling machine only can be arranged on the inner side of the inner wall of a shaft in the prior art, under the condition of certain drilling angle inclination, the position of a last hole can hardly exceed the range of the diameter of a pierced pipe, the radius of a formed heavy curtain is small, and the grouting effect is poor are solved. The vertical shaft overall pouring section walling crib comprises an outer shaft wall, an inner shaft wall, a shaft walling crib body, two water detection hole pipes and a grout stop pad. The two water detection hole pipes are embedded in the grout stop pad. The shaft walling crib body is connected with the outer shaft wall. The bottom end face of the shaft walling crib body is flush with the bottom end face of the inner shaft wall. The inner shaft wall is connected with the outer shaft wall. The upper end face of the inner shaft wall is flush with the upper end face of the outer shaft wall. The invention further relates to the vertical shaft overall pouring section walling crib construction method. The vertical shaft overall pouring section walling crib and the vertical shaft overall pouring section walling crib construction method are used for vertical shaft construction.

Description

technical field [0001] The invention relates to the field of a wall seat for an integral pouring section and a construction method for a wall seat for an integral pouring section of a vertical shaft, in particular to the field of a wall seat for an integral pouring section of a vertical shaft and a construction method for a wall seat for an integral pouring section of a vertical shaft. Background technique [0002] In the existing technology, after the excavation of the wall seat reaches the design height, the grout stopper is poured, and then the wall seat is poured and the inner wall of the sleeve is carried out. The next step of the water exploration work can only be arranged on the inner wall side, and the final hole must be ensured. Beyond the barren path, it is necessary to increase the radial inclination, which brings certain difficulties to the drilling work. At the same time, the drilling depth is also limited to a certain extent, and the ideal grouting curtain effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D5/11
CPCE21D5/11
Inventor 李安光王正忠孔祥柯毕玉成高殿军谢玉祥吕德
Owner CHINA COAL ENERGY HEILONGJIANG COAL CHEM
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