Rational design justification of the tunnel boring shield executive body for the conditions of the mines of Saint Petersburg Metrostroy
The article discusses the features of running tunnels in difficult mining and geological conditions of the Saint Petersburg Metrostroy using modern tunnel boring shields of Herrenknecht company with hybrid executive bodies equipped with a incisors and rock cutters. The work of a hybrid executive bod...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Saint-Petersburg Mining University
2021-09-01
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| Series: | Записки Горного института |
| Subjects: | |
| Online Access: | https://pmi.spmi.ru/index.php/pmi/article/view/14722?setLocale=en_US |
| _version_ | 1797947258028687360 |
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| author | Dmitrii A. Yungmeister Aleksei I. Yacheykin |
| author_facet | Dmitrii A. Yungmeister Aleksei I. Yacheykin |
| author_sort | Dmitrii A. Yungmeister |
| collection | DOAJ |
| description | The article discusses the features of running tunnels in difficult mining and geological conditions of the Saint Petersburg Metrostroy using modern tunnel boring shields of Herrenknecht company with hybrid executive bodies equipped with a incisors and rock cutters. The work of a hybrid executive body is analyzed when driving along a heterogeneous bottomhole massif consisting of Cambrian clay with limestone interlayers. Theoretical and experimental studies of vibroactive cones, a graphical representation of the dependence of the depth of their penetration on the axial force and axial force together with the applied shock load (the dependences of the penetration depth are interpreted as a linear dependence) have been carried out. An increase in the intensity of destruction of a heterogeneous bottomhole massif consisting of Cambrian clay and limestone interlayers using vibroactive rock-cutting tools (spiked roller) was theoretically and experimentally confirmed, while the growth of the penetration rate is determined depending on the number of their parameters. The design is considered, the principle of operation and the method of power calculation of a rotary executive body equipped with vibroactive cutters are described, on the basis of which a nomogram of the dependence of the torque and performance of the tunnel boring shield on the feed rate of the executive body to the bottom is built. |
| first_indexed | 2024-04-10T21:23:53Z |
| format | Article |
| id | doaj.art-5a71c5b4490142d0ab820d1ef1fd97b8 |
| institution | Directory Open Access Journal |
| issn | 2411-3336 2541-9404 |
| language | English |
| last_indexed | 2024-04-10T21:23:53Z |
| publishDate | 2021-09-01 |
| publisher | Saint-Petersburg Mining University |
| record_format | Article |
| series | Записки Горного института |
| spelling | doaj.art-5a71c5b4490142d0ab820d1ef1fd97b82023-01-20T02:04:53ZengSaint-Petersburg Mining UniversityЗаписки Горного института2411-33362541-94042021-09-0124944144810.31897/PMI.2021.3.1314722Rational design justification of the tunnel boring shield executive body for the conditions of the mines of Saint Petersburg MetrostroyDmitrii A. Yungmeister0https://orcid.org/0000-0001-7858-8340Aleksei I. Yacheykin1https://orcid.org/0000-0002-1178-6913Saint Petersburg Mining UniversitySaint Petersburg Mining UniversityThe article discusses the features of running tunnels in difficult mining and geological conditions of the Saint Petersburg Metrostroy using modern tunnel boring shields of Herrenknecht company with hybrid executive bodies equipped with a incisors and rock cutters. The work of a hybrid executive body is analyzed when driving along a heterogeneous bottomhole massif consisting of Cambrian clay with limestone interlayers. Theoretical and experimental studies of vibroactive cones, a graphical representation of the dependence of the depth of their penetration on the axial force and axial force together with the applied shock load (the dependences of the penetration depth are interpreted as a linear dependence) have been carried out. An increase in the intensity of destruction of a heterogeneous bottomhole massif consisting of Cambrian clay and limestone interlayers using vibroactive rock-cutting tools (spiked roller) was theoretically and experimentally confirmed, while the growth of the penetration rate is determined depending on the number of their parameters. The design is considered, the principle of operation and the method of power calculation of a rotary executive body equipped with vibroactive cutters are described, on the basis of which a nomogram of the dependence of the torque and performance of the tunnel boring shield on the feed rate of the executive body to the bottom is built.https://pmi.spmi.ru/index.php/pmi/article/view/14722?setLocale=en_UStunnel boring shieldexecutive bodyincisor placement schemeclaychip thicknessvibro-shock cutter |
| spellingShingle | Dmitrii A. Yungmeister Aleksei I. Yacheykin Rational design justification of the tunnel boring shield executive body for the conditions of the mines of Saint Petersburg Metrostroy Записки Горного института tunnel boring shield executive body incisor placement scheme clay chip thickness vibro-shock cutter |
| title | Rational design justification of the tunnel boring shield executive body for the conditions of the mines of Saint Petersburg Metrostroy |
| title_full | Rational design justification of the tunnel boring shield executive body for the conditions of the mines of Saint Petersburg Metrostroy |
| title_fullStr | Rational design justification of the tunnel boring shield executive body for the conditions of the mines of Saint Petersburg Metrostroy |
| title_full_unstemmed | Rational design justification of the tunnel boring shield executive body for the conditions of the mines of Saint Petersburg Metrostroy |
| title_short | Rational design justification of the tunnel boring shield executive body for the conditions of the mines of Saint Petersburg Metrostroy |
| title_sort | rational design justification of the tunnel boring shield executive body for the conditions of the mines of saint petersburg metrostroy |
| topic | tunnel boring shield executive body incisor placement scheme clay chip thickness vibro-shock cutter |
| url | https://pmi.spmi.ru/index.php/pmi/article/view/14722?setLocale=en_US |
| work_keys_str_mv | AT dmitriiayungmeister rationaldesignjustificationofthetunnelboringshieldexecutivebodyfortheconditionsoftheminesofsaintpetersburgmetrostroy AT alekseiiyacheykin rationaldesignjustificationofthetunnelboringshieldexecutivebodyfortheconditionsoftheminesofsaintpetersburgmetrostroy |