Submarine tunnel composite lining interlaminar water seepage longitudinal cross flow-proof construction method

A technology for composite lining and underwater tunnels, applied in tunnel lining, tunnel, wellbore lining, etc., can solve the problems of free drainage composite lining channeling, etc., and achieve the problem of water seepage longitudinal channeling, with obvious effect and good application value

Inactive Publication Date: 2008-10-15
CCCC SECOND HIGHWAY CONSULTANTS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a construction method for longitudinal anti-channel...

Method used

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  • Submarine tunnel composite lining interlaminar water seepage longitudinal cross flow-proof construction method
  • Submarine tunnel composite lining interlaminar water seepage longitudinal cross flow-proof construction method
  • Submarine tunnel composite lining interlaminar water seepage longitudinal cross flow-proof construction method

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Embodiment 1

[0019] according to figure 1 , figure 2 , image 3 It can be seen that a construction method for longitudinal channeling prevention of water seepage between composite lining layers of underwater tunnels is suitable for the transitional sections of tunnels 5 and 6 linings with different surrounding rocks, such as between the fully enclosed lining 1 and the free-discharging lining 3 and between the restricted-discharging lining 2 and the free lining. Drain between linings 3. The longitudinal anti-channeling structure 4 is composed of a waterproof cement slurry 10 and a double-sided self-adhesive waterproof 9 with BAC, and the steps are as follows:

[0020] A. Remove the dust and sundries on the surface of initial support 8.

[0021] B. Sprinkle water on the surface of the dry initial support 8 and wet it thoroughly.

[0022] C. Mechanically stir the cement and water evenly, that is, the cement slurry is 10, and the water-cement ratio is 1:1.

[0023] D. Pop up the coil pav...

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Abstract

The invention discloses a constructional method for preventing water seepage longitudinal cross flow between composite lining layers in an underwater tunnel. The steps of the constructional method are as follows: A cleaning dust and impurities on the surface of a primary support; B. spraying water to wet the dry surface of the primary support; C. mechanically and uniformly stirring cement and water into grout for further use; D. bouncing out coiled materials from a base layer of the primary support to pave and paste control lines and Bondsure BAC double-faced self-adhere type water resistant coiled materials, paving and pasting the grout on the base layer, and rolling and paving the coiled materials forward along a datum line; E. welding the Bondsure BAC double-faced self-adhere type water resistant coiled materials with a composite water resistant layer after the grout begins to have strength; F. adopting a steel moulding plate trolley pump to cast a secondary lining after the construction of the composite water resistant layer is finished. The method is simple, convenient in construction, and solves the problem of the water seepage longitudinal cross flow between the primary support and the composite water resistant layer in the underwater tunnel. The method effectively prevents the water seepage at the back of a water pressure resistant lining from crosswise flowing to a water pressure nonresistant lining, and has good application value for underwater tunnels built by a drilling and blasting method.

Description

technical field [0001] The invention relates to the technical field of underwater tunnel lining waterproof treatment, and more specifically relates to a longitudinal anti-channeling construction method for water seepage between composite lining layers of an underwater tunnel, and the method is suitable for the type change treatment of the underwater tunnel lining. Background technique [0002] There are three forms of composite lining for underwater tunnels: fully enclosed lining, restricted drainage lining and free drainage lining. Fully enclosed lining is mainly used for weak surrounding rock sections with low bearing capacity and large water seepage and underwater weathering trough sections. The surrounding rock pressure and a small part of the hydrostatic pressure are considered, while the secondary lining is considered to bear a small part of the surrounding rock pressure and most of the hydrostatic pressure. Discharge-restricted linings are generally used in submerged...

Claims

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Application Information

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IPC IPC(8): E21D11/10E21D11/38
Inventor 梁巍乔春江杨林松
Owner CCCC SECOND HIGHWAY CONSULTANTS CO LTD
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