Construction of Deep Drilling Rig, Germany
Customer Project
As the geothermal energy market is continuously increasing, BAUER Maschinen GmbH, a German company working in the field of specialist foundation engineering, has developed a new deep drilling rig. Dlubal Software's German customer Ing.-Büro H.-U. Möller was in charge of the plant's structural analysis. The system is used to make borings reaching to a depth of 22,965 ft in the area of geothermal energy, oil, or gas.
| Structural Engineering |
Ing.- Büro H.-U. Moller, Minden, Germany www.hum-minden.de |
| Investor |
BAUER Maschinen GmbH, Schrobenhausen, Germany www.bauer.com |
Model
In addition, it is possible to extend existing boreholes using modern boring technology. The boring device is built in Germany and distributed worldwide.
Structure
The deep drilling rig has the following dimensions: L x W x H = 82 ft x 39 ft x 137.7 ft. The mass of the entire structure is 639 t. It has a modular structure which enables transport on a truck.
The plant is self-erecting in parts and can be shifted from one bore hole to the other when built up. The drill bit is driven into the earth by a maximum rotary drive of 60°kNm and pulled out by a maximum force of 989,159 lbs.
Calculation
The model consists of 1,137 nodes and 2,052 members forming a lattice tower in the shape of a U. The guide is applied on the open U‑side.
For their calculation, the engineers have analyzed six RSTAB models with different loads and states such as plant in and out of operation with concentrated support and tension failure, lying tower, lifting of tower, mounting of winch, and so on.
The structural system and loading were entered in a basic system. Then, all systems to be analyzed were derived from the basic system. To determine the maximum internal forces and stresses, the six models were superimposed in a super combination.
Keywords
Deep drilling rig Drilling rig Drilling technology Drilling
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Evaluating and Documenting Steel Joints Analysis Results in RFEM 6
With the RFEM 6 add-on Steel Joints, you can analyze steel connections by using an FE model. This article demonstrates how to evaluate and document the steel joints analysis results.
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Application of Connections to the Structure | Steel Joints
- The proposed connection can be applied to all selected nodes in the structure
- The location of the connection can be defined using the "Main" tab of the Add-on dialog box
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- The table shows the results for the individual connections, each connection is designed and can be saved separately
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Programs Used for Structural Analysis
RSTAB 8
Main Program
Structural engineering software for designing frame, beam, and truss structures, as well as performing linear and nonlinear calculations of internal forces, deformations, and support reactions
Price of First License
2,550.00 USDRSTAB 8
Add-on Module
Stability analysis according to the eigenvalue method
Price of First License
670.00 USD - How can I display the cross-section warping?
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- How can I define a warping spring or a warping restraint?
