Device for producing a cavity in a soil

A kind of equipment and soil technology, which is applied in the direction of mining equipment, drilling equipment, drilling equipment and methods, etc., can solve the problems of driving head blockage, plug disintegration, and inability to reach the jet flow area, so as to avoid blockage, improve crushing and dissolution, and better output effect

Active Publication Date: 2019-05-03
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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  • Device for producing a cavity in a soil
  • Device for producing a cavity in a soil
  • Device for producing a cavity in a soil

Examples

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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 here is designed to be partially conical, there is a groove 20 which extends circularly and horizontally over the entire conical surface. As an alternative, the individu...

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PUM

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Abstract

The invention relates to a device (10) for producing a cavity in a soil from a starting point to a target point along a drilling line for introducing timbering for holding the cavity open having a tunneling head (11), at the outer end of which at least one cutting element (12) for stripping the soil is provided, wherein the tunneling head (11) has a receiving chamber (15) which has an opening (16), to which a face conveyor line (17) is connected, and in which at least a first nozzle (21) for discharging a liquid for transporting the stripped soil away from the receiving chamber is provided, which first nozzle (21) is provided in such a way that the discharge opening thereof is oriented substantially in the direction of the face conveyor line, wherein the advancing drive takes place via anadvancing device. It is provided here that at least one second nozzle (23) is provided which is arranged in such a way that the discharge opening thereof is directed substantially onto the soil to bestripped.

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 & AuthorityApplications(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