Equipment for creating cavities in soil

An equipment and soil technology, applied in mining equipment, drilling equipment, drilling equipment and methods, etc., can solve the problems of blockage of the head, the collapse of the plug, the inability to reach the jet area, etc., to avoid blockage, improve crushing and dissolution, and improve output effect

Active Publication Date: 2020-12-22
HERRENKNECHT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Here, especially for very viscous soils, the disadvantage is that the boring head disclosed here can be blocked or the soil can be loosened from the cutting edge in a plug-like manner, so that it cannot reach the jet area at all, so that it cannot be used here. Disintegrates the plug and thus may clog

Method used

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  • Equipment for creating cavities in soil
  • Equipment for creating cavities in soil
  • Equipment for creating cavities in soil

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] The drawing shows a device 10 with a boring head 11, on the outer end of which a cutting element 12 for loosening the soil is arranged, and on the opposite side the boring head 11 has a A joint 13 of a support frame 14, which may be a propulsion tube, a tunnel segment, a pipe segment or a pipe. The drilling head 11 has a conical receiving chamber 15 . Alternatively, other shapes are possible, such as cylindrical or partially conical. The receiving chamber 15 is connected at the upper end to the cutting element 12 . At its lower end in the conical center, the receiving chamber 15 has an opening 16 , to which an outlet line 17 adjoins. A pump 18 can be arranged in the discharge line 17 in order to convey the mixture of loosened soil and fluid.

[0032] In the inner side 19 of the receptacle 15 , which in this case is designed partially conical, is provided a recess 20 which extends circularly and horizontally over the entire conical surface. As an alternative, the ind...

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Abstract

The invention relates to a device (10) for constructing a cavity in soil from a starting point to a target point along a borehole line in order to place a support for keeping the cavity open, said device having A boring head (11) on which at least one cutting element (12) for loosening the soil is arranged at its outer end, wherein the boring head (11) has a receiving cavity (15) which receives The cavity has an opening (16) on which an output pipeline (17) is connected, and at least one first nozzle (21) for ejecting a fluid is provided in the excavation head, and the fluid is used to inject The loose soil is transported out of the receiving chamber, the first nozzle being arranged such that its ejection opening is oriented substantially in the direction of the outlet line, wherein the advancement takes place via the feed device. It is provided here that at least two second nozzles ( 23 ) are provided, which are arranged such that their injection openings are directed substantially towards the soil to be loosened.

Description

technical field [0001] The invention relates to a device for constructing a cavity in the soil along a borehole line from a starting point to a target point in order to insert a support frame for keeping the cavity open, said device having a driving head, At least one cutting element for loosening the soil is provided on the outer end of the boring head, wherein the boring head has a receiving chamber with an opening to which an outlet line is connected , and at least one first nozzle for ejecting fluid (Flüssigleit, liquid) is provided in the boring head, and the fluid is used for transporting the loose soil from the receiving chamber, the first nozzle is set to , so that its injection opening is substantially oriented in the direction of the outlet line, wherein the advance is effected via the feed device. Background technique [0002] Such a device is known from DE 4 217 293 C2. Here, clay pipes are lowered from the starting pit into the soil via the press frame. A bor...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): E21D9/06
CPCE21D9/06E21B10/60E21B7/18E21B7/20E21B10/61
InventorS·普雷托里乌斯T·格哈特M·彼得斯
OwnerHERRENKNECHT AG