Construction method for 360 t concrete throwing body interception
A construction method and concrete technology, which is applied in water conservancy projects, hydroelectric power stations, hydroelectric power generation, etc., can solve problems such as the inability to install and construct gate slots and gates, and achieve the goals of overcoming insufficient traffic conditions, shortening construction time, and saving costs Effect
Inactive Publication Date: 2019-02-22
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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- Application Information
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Problems solved by technology
If the design unit does not design, the installation and construction of gate slots and gates will not be possible in the later stage under water-passing conditions
Method used
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Embodiment Construction
[0038] The specific implementation of the construction method of the present invention will be further described in detail below in conjunction with the accompanying drawings of the description.
[0039] Such as Figure 1 ~ Figure 3 Shown, construction method of the present invention specifically comprises the following steps:
[0040] Step 1. Use bulldozers and rammers to level and intercept the construction work surface;
[0041] Step 2. Pour the concrete prefabricated body foundation on the working surface. The longitudinal section of the concrete prefabricated body foundation is a trapezoidal section with a width of 6m and a length of 9m. The Φ20@200 steel mesh is arranged inside to enhance the overall strength of the concrete foundation, and the concrete prefabricated body foundation guides the direction of the open channel to be in a downhill state, so that the concrete precast body foundation slides towards the open channel;
[0042] Step 3, laying a sliding platform ...
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Abstract
The invention relates to a construction method for 360 t concrete throwing body interception. The construction method comprises the following steps that pouring of a concrete prefabricated body foundation is carried out on a working surface, the concrete prefabricated body foundation has a trapezoidal cross section, and surface layers are provided with phi20@200 steel bars in a matched manner; interception operation is done, a steel wedge under a rolling bar is removed, a fixed steel wire rope of an I16# I-beam is cut off, and two bulldozers are used for pushing a 360 t throwing body into an open channel at the same time; plugging of a closure gap between the concrete prefabricated body foundation and a slope of the open channel is carried out, a crane is used for placing rock block reinforcement cages on the portions, on the two sides of the closure gap, of the slope of the diversion open channel side by side, the bulldozers push the rock block reinforcement cages into the closure gap, and two layers of the reinforcement cages are thrown; two tetrahedrons are placed side by side on the two sides of the closure gap, the bulldozers push the two tetrahedrons into the closure gap, a dump truck transports rock ballast to the right side of the diversion open channel and fills the diversion open channel with the rock ballast; and the dump truck transports intercepting materials to the right side of the diversion open channel and fills the diversion open channel with the intercepting materials.
Description
technical field [0001] The invention belongs to the technical field of diversion open channel closure construction in water conservancy and hydropower projects, and in particular relates to a construction method for closure of a 360t concrete throwing body. Background technique [0002] At present, the conventional practice of diversion open channels in China is to fill cofferdams upstream of foundation pits, use small multi-faceted throwing bodies in open channels, or design units to set gates to control flow. [0003] For example, the Chinese invention patent application with the application number 201510191468.8 discloses a closure method of open diversion channels. During the excavation and construction of open diversion channels, rock sills are reserved as closure sills, and a sill is reserved at the outlet of open diversion channels. The rock sill is used as a diversion protection sill, and the diversion protection sill is 30-60° to the water flow direction; when the f...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E02B9/02
CPCE02B9/022Y02E10/20
Inventor 李丹丹何无产李建国闫志勇娄聚会
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD