Three-storey basement support structure
A technology for supporting structure and basement, which is applied to underwater structures, infrastructure engineering, water conservancy engineering, etc., can solve the problems affecting the safety of basement support, insufficient rigidity of annular support, etc., and achieves convenient construction and operation and good safety performance. Effect
Active Publication Date: 2017-01-25
海南万泰建筑工程有限公司
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Problems solved by technology
Insufficient ring support rigidity often occurs in engineering practice, which affects the safety of basement support
Method used
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[0033] A project is a 15-story commercial and residential building with a frame-tube shear wall structure and a building area of 56,000m 2 , is a 3-storey basement with a basement area of 4350m2 2 , the excavation depth is 12.6m, the engineering piles are bored cast-in-situ piles, and the depth of bored cast-in-place piles is 52m.
[0034]In this embodiment, the first layer of support adopts a three-layer ring beam structure, and the ring beams are connected by webs 4. The distance between the first layer of ring outer beam 1 and the first layer of ring center beam 2 is 1m, and the first layer of ring center beam 2 and A layer of ring-shaped inner beams 3 with a distance of 1m, a layer of ring-shaped outer beams 1, a layer of ring-shaped middle beams 2, and a layer of ring-shaped inner beams 3 have a width of 600mm and a height of 800mm, and the concrete strength is C30. A web bar 4 is set between a layer of ring-shaped outer beam 1 and a layer of ring-shaped middle beam ...
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The invention discloses a three-layer basement supporting structure. The three-layer basement supporting structure is characterized in that three layers of annular beams are adopted in first-layer supporting, the annular beams are connected through web members, an enclosure wall is not only adopted as a temporary supporting structure for blocking soil water seepage, but also adopted as a permanent basement side wall, and grouting reinforcement is carried out on soil within the range from 0.8 m to 1.2 m of the inner side of the enclosure wall; a cast-in-place concrete slab is arranged between the first-layer annular outer beam and the enclosure wall, and the vertical projection of the second-layer annular outer beam and the vertical projection of the first-layer annular outer beam are consistent; the vertical projection of the second-layer annular inner beam and the vertical projection of the first-layer annular middle beam are consistent, and a second-layer corner support is arranged between the second-layer annular outer beam and the enclosure wall; and the vertical projection of the third-layer annular beam and the vertical projection of the first-layer annular outer beam are consistent, and a third-layer corner support is arranged between the third-layer annular beam and the enclosure wall.
Description
technical field [0001] The invention relates to a basement support structure, in particular to a three-layer basement support structure. Background technique [0002] In recent years, basements have become deeper and deeper, and the requirements for environmental protection around basements have become higher and higher. The internal support structure has the characteristics of safety, reliability, economy and rationality, and is widely used in basement engineering. However, the internal support provided by the conventional support method causes great inconvenience to the excavation of basement earthwork and the construction of underground structures, resulting in consequences such as prolonged construction period and poor economic efficiency. Higher economic benefits can be obtained if the ring support is used instead of the conventional ring beam support structure system. In the ring beam support system, the stiffness and strength of the ring beam have a great influence ...
Claims
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IPC IPC(8): E02D29/045E02D17/04E02D17/02E02D19/10
Inventor 朱奎
Owner 海南万泰建筑工程有限公司