PATENT CLAIM ANALYSIS

Application Number: 15870522
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-09
Patent Classification: ["405", "136000"]

Abstract:
The present application discloses a final joint of an immersed tunnel, a prefabrication method and an installation method, wherein the final joint includes two end surfaces connected with installed adjacent tube sections; the two end surfaces are both tilted surfaces, so that the longitudinal profile of the final joint along an installation direction is of an inverted trapezoid structure; and the final joint further may be of a structure with a tube section I and a tube section II which are connected with each other. The final joint of the immersed tunnel is simple in structure, convenient to control and relatively high in precision, thereby reducing lots of open sea diving work and lowering a risk of installation quality defects; as prefabrication procedures are simple, the final joint may be prefabricated in a land factory and then transported to the site, thereby reducing influence of weather conditions on construction; a body structure of the final joint is prefabricated in the factory, and then the overall final joint is transported to the site for installation; water stop systems realize quick water stop, thus forming a dry construction environment; and therefore, the influence of weather and tidal current conditions on a project may be reduced, and a quality risk may be lowered.

Claim (Index 24):
The installation method of the final joint of the immersed tunnel according to  claim 23 , wherein when the final joint comprises a tube section I and a tube section II, the installation method comprises:\n prefabricating the tube section I and the tube section II, and forming the final joint of the immersed tunnel; arranging the tilted to-be-installed surfaces on the end portions of two installed adjacent tube sections to be connected with the tube section I and the tube section II, respectively matching the two to-be-installed surfaces with he connection surfaces of the tube section I and the tube section II in shape, and respectively installing the end seal doors in the tube section I, the tube section II and the two installed adjacent tube sections; towing the final joint of the immersed tunnel to the position above the installation station, then immersing the final joint, and adjusting the posture of the final joint to enable the final joint to be aligned with the installation station between the two installed adjacent tube sections; respectively switching on the water stop systems on the tube section I and the tube section II, wherein the water stop systems are respectively in contact with the to-be-installed surfaces of the two installed adjacent tube sections to respectively form the combination cavities; draining water from each of the combination cavities, thus forming the dry working environment; temporarily locking the tube section I and the tube section II on the installed adjacent tube sections, removing the end seal doors, and respectively welding the connection surfaces of the tube section I and the tube section II onto the installed adjacent tube sections; relieving prestress in the tube section I and the tube section II, grouting the prestressed tendon pipeline, and finally completing installation of the final joint of the immersed tunnel.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 86.0
- Lexical Diversity: 2.2451
- Patent Class: 405.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15870640', '15870550', '15870590', '15767157', '14271327']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7762578472078134
- 35 USC 102 Novelty (BERT): 0.509834751227031
- Combined Prediction Score: 0.7496155376097352
- Mean Citation Score: 224.633126
- Max Citation Score: 281.5914
- Similarity Product: 202.569028547895

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test