Rapid Construction Method of Underwater Shallow Buried Open Cut Large Channel without Dry Dock

A construction method and channel technology, applied to underwater structures, buildings, water conservancy projects, etc., can solve the problems of high temporary project cost, long construction period, and easy torsion phenomenon, so as to save the overall project cost and construction period, The effect of reducing the required manpower, efficient floating and precise sinking

CN112982476BActive Publication Date: 2021-08-03CHINA RAILWAY LIUYUAN GRP CO LTD +1
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-08-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention relates to a rapid construction method of large-scale shallow buried open excavation without dry dock. The basic structural unit used in the method has the following characteristics: the length of each basic structural unit is 20-25m, one end is provided with a closed door, and the other end is an open structure , the lower end of the sealed door is provided with a drainage pressure relief valve; the end of the basic structural unit is surrounded by a rubber waterstop, and a floating and ballast cabin with adjustable inlet and drainage capacity is fixed inside; at least four chambers are installed at the bottom of the basic structural unit. Axis positioning feet. The basic structural unit of the channel described in the present invention can be prefabricated directly on the flat ground without the need to build a large temporary dry dock, which reduces the investment in temporary projects and saves the cost and construction period of the underwater channel; Entering the water area, by adjusting the air volume in the floating and ballasting cabin, it will remain suspended in the water, and will be pulled and sunk by the floating crane, which improves the construction efficiency and reduces the difficulty of water construction.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of underwater engineering, in particular to a basic structural unit of a shallow buried open-cut underwater large channel without a dry dock and a rapid construction method thereof. Background technique

[0002] The vast majority of cities with a population of over one million in my country are built along rivers, lakes and seas. While bringing development to cities, rivers, lakes and seas also divide the two sides of the city, hindering the formation of the overall traffic network of cities on both sides to a certain extent. Tunnels have the outstanding advantages of being all-weather and not affecting shipping. The construction of underwater tunnels is an important means to break through the barriers of rivers, lakes and seas on both sides of the city, connect the urban road network, and develop regional economy.

[0003] Conventional underwater channel construction methods include mine method, shield method and imm...

Examples

Embodiment 1

[0035] Embodiment 1: as figure 2 As shown, a basic structural unit of a shallow buried open cut large-scale channel without a dry dock. The basic structural unit 1 is formed by integrally pouring a top plate, a bottom plate and side walls on both sides. One end of the basic structural unit is provided with a sealing door 12, and the other end It is an open structure, the lower end of the sealing door 12 is provided with a drain pressure relief valve 13, the end of the basic structural unit on the side of the sealing door 12 is surrounded by a rubber waterstop 14, and the inside of the basic structural unit 1 is provided with an adjustable inlet. 1. The floating and ballast cabin 11 with drainage capacity, at least four axis positioning feet 15 are arranged on the bottom of the basic structural unit 1, and the top plate of the basic structural unit 1 is provided with an axial zipper 17 or is matched with the axial zipper 17 Set of fixed blocks 16.

[0036] Wherein, in this em...

Embodiment 2

[0040] Embodiment 2: as Figures 1 to 4 As shown, a method for quickly constructing a large-scale passageway without dry dock underwater shallow buried open excavation using the basic structural unit described in Embodiment 1, specifically includes the following steps:

[0041] S1, such as figure 1 As shown, the basic structural unit 1 described in the first to the Nth embodiment 1 is directly prefabricated at the flat ground near the embankment line 2 of the channel water area 4; wherein, the structural schematic diagram of the basic structural unit 1 is as follows figure 2 shown;

[0042] S2, such as Figure 4 As shown, below the embankment line 2 of the channel water area 4, the cast-in-place structural unit 7 for docking with the first basic structural unit prefabricated in step S1 is constructed by the cofferdam open-cut method, and the connection between the cast-in-place structural unit 7 A sealing door 12 is provided at the end of the sealing door 12, and a drainag...