8results about How to "Improve geological adaptability" patented technology

The invention relates to the technical field of image semantic segmentation, in particular to an intelligent landslide identification method based on multi-source remote sensing image fusion. Comprising the following steps: calculating a gradient matrix and a water flow convergence index based on a digital elevation model, searching and determining a physical prior interval of cohesive force and an internal friction angle based on geological lithology data, and constructing an input tensor; extracting a surface semantic feature map of the optical image by using visual perception branches through a double-branch coupling network; based on a physical prior interval, mapping branches by using physical parameters, and carrying out nonlinear mapping to obtain a limited rock-soil mechanical parameter diagram; and calling a micro infinite slope stability layer, executing forward derivable calculation based on a limit equilibrium equation, generating a slope stability coefficient field, constructing physical attention gating, executing Hadamard product operation, and generating a semantic feature tensor. Through deep coupling integration and collaborative optimization of the visual perception branch and the physical parameter mapping branch, the true effectiveness of the obtained position data is ensured.

The invention relates to the technical field of vertical shaft heading machines, in particular to a hollow main drive for a vertical shaft heading machine and the vertical shaft heading machine. The hollow main drive comprises a center channel, a first sealing cavity and a plurality of second sealing cavities; the first sealing cavity comprises a sealing cavity defined by an outer shell, a large flange, a top cover and first sealing assemblies, the outer shell is arranged on the outer side of the large flange in a sleeving mode and rotationally connected with the large flange, the top cover is connected with the outer shell and the large flange, and the first sealing assemblies are arranged between the top cover and the large flange and between the outer shell and the large flange correspondingly; the large flange and the top cover are of hollow structures, and the hollow parts of the large flange and the top cover are coaxially arranged to form a central channel; the second sealing cavity is arranged in the first sealing cavity. By arranging the second sealing cavity and the central channel, the problem of coexistence of slurry deslagging and central mechanical deslagging is solved, the geological adaptability of the vertical shaft heading machine is improved, and the construction cost is reduced.

The invention relates to a rotary excavating cast-in-situ bored pile construction technology, in particular to a cast-in-situ bored pile yellow mud retaining wall construction method for a high-fill gravel geology. Comprising the steps that 1, pile position positioning paying-off is conducted; 2, a drilling machine is in place; step 3, burying a pile casing; 4, drilling and hole-forming yellow mud retaining wall manufacturing; 5, hole cleaning and acceptance check are conducted; step 6, manufacturing and hoisting a reinforcement cage; 7, the guide pipe is hung and placed; 8, concrete is poured; and 9, the pile casing is pulled out. The method shows the characteristics of systematicness, comprehensiveness, geological adaptability, fine control, safety, environmental protection and the like on the whole construction method, and particularly has the advantages of strong pertinence, perfect technical implementation details, strong geological adaptability, reliable wall protection effect and quality control and the like on the application of the yellow mud wall protection technology; the method becomes a bright spot in the method. According to the construction method, the construction efficiency and quality are improved, and beneficial reference is provided for cast-in-situ bored pile construction under similar geological conditions.

The invention relates to the field of tunnel construction, in particular to a small-curvature-radius shield tunnel rapid construction BIM optimization design method which comprises the seven steps of S1, an early-stage preparation stage, S2, model establishment, S3, indoor testing, S4, numerical simulation, S5, result comparison, S6, BIM optimization design and S7, construction according to design. According to the method, comprehensive improvement of geological adaptability, pressure balance, structural safety, parameter accuracy, risk control and construction efficiency in the construction process is achieved, it is ensured that high-quality, high-efficiency and high-safety completion of tunnel engineering is achieved, the BIM technology and the small-curvature-radius shield tunnel are effectively combined to a certain extent, and the construction efficiency is improved. And the construction efficiency of the tunnel with the small curvature radius is improved.

The invention provides a tunnel structure waterproof and drainage process for railway engineering, and relates to the technical field of tunnel structure waterproof and drainage. A tunnel structure waterproof and drainage process for railway engineering comprises preparation before construction, a water diversion and drainage construction process before primary support, a main tunnel lining waterproof and drainage construction process and construction quality inspection and control. From drainage before primary support to arrangement of a waterproof layer of a main tunnel lining and waterproof treatment of special parts such as construction joints, an all-directional and multi-layer waterproof system is constructed, an underground water leakage path is effectively blocked, the waterproof reliability of a tunnel structure is greatly improved, a perfect drainage network is formed, and the construction period is shortened. It is ensured that underground water can be timely and efficiently drained out of the tunnel, accumulated water is prevented from damaging the structure, drainage smoothness is powerfully guaranteed, the erosion effect of the underground water on tunnel lining concrete and reinforcing steel bars is effectively reduced, the structure degradation speed is slowed down, and the durability of the structure is greatly improved.

The present invention proposes a tunnel boring machine, including a cutter disc and a shield body, wherein the shield body forms a soil bin through a shield body partition, a detachable scraper plate is provided on the back of the cutter disc, a detachable soil bin partition is provided in the soil bin, a connecting device is provided on the shield body partition, and a slag discharge device with an advance and retreat function is located at the connecting device. The beneficial effect of the present invention is that it provides a tunnel boring machine with three integrated modes, and the switching between modes can be completed without disassembling large components. On the one hand, it expands the geological adaptability of the tunnel boring machine to different strata, and on the other hand, it can quickly switch in time to improve construction efficiency.

The invention discloses a dual-structure TBM and a construction method thereof, comprising a shield with a shield body propulsion cylinder arranged in the circumferential direction, a main drive connected to the shield through the shield body cylinder, a cutterhead connected to the front of the main drive, a main beam connected to the rear of the main drive, a spray anchor support excavation unit and a segment support excavation unit arranged on the main beam, the spray anchor support excavation unit comprising a steel arch frame assembly machine, an anchor drilling machine and a concrete spraying manipulator, a main beam propulsion cylinder arranged at the rear of the anchor drilling machine, the front end of the main beam propulsion cylinder is hinged on the main beam, and the rear end is hinged with a shoe unit, the shoe unit is slidably arranged along the axis of the main beam, a rear support unit is slidably arranged on the main beam behind the shoe unit, and the segment support excavation unit comprises a segment assembly machine, and the segment assembly machine, the steel arch frame assembly machine, the anchor drilling machine and the concrete spraying manipulator are all arranged at the rear of the shield. The invention can realize the conversion between the spray anchor support excavation mode and the segment support excavation mode.

A dynamic permeability zoning method for water-rich tunnels based on multi-source data includes the following steps: acquiring permeability coefficient, rock compressive strength, integrity coefficient, RQD, and P-wave velocity data of the tunnel excavation area; constructing a multi-source feature matrix through spatiotemporal alignment and standardization; dynamically calculating the weights of each indicator based on the entropy weight method, and adaptively adjusting the parameter contribution based on geological type; generating standard cloud parameters using a cloud model, calculating the membership degree of real-time data to each permeability level through a forward cloud generator, and comprehensively determining the final grading result; mapping the grading result to a 3D BIM model to generate a dynamic permeability cloud map and triggering a real-time early warning mechanism. This invention overcomes the static nature and experience dependence of traditional grading methods through multi-source data fusion and dynamic weight allocation, significantly improving the accuracy of permeability assessment in complex strata; the cloud model quantifies the ambiguity of grade boundaries, avoiding the risk of misjudgment in critical intervals; the deep integration of advanced geological forecast data enables spatial prediction of permeability in unexcavated areas; combined with minute-level early warning and intelligent recommendation of grouting parameters, it effectively reduces the probability of sudden water inrush accidents, providing an intelligent solution for safe construction and resource optimization of water-rich tunnels.