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Underground structure deformation joint leaking stoppage repairing method

A repair method and underground structure technology, which is applied in the field of deformation joint repair, can solve problems such as aging of buried rubber waterstops, groundwater leakage, large differential settlement, etc., and achieve the effects of improved service life, convenient construction, and simple materials

Inactive Publication Date: 2021-03-26
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned defects of the prior art, the technical purpose of the present invention is to solve the problem that the rubber waterstops used in the deformation joints of underground structures often have large differential settlements within 3-5 years of being put into operation, which in turn causes mid-buried The rubber waterstop is aging and torn, which leads to the problem of groundwater leakage

Method used

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Embodiment

[0022] Such as Figure 1-Figure 2 As shown, a method for plugging and repairing deformation joints of underground structures comprises the following steps:

[0023] Step 1. At the place where there is a height difference between the deformation joint 2 that has undergone differential settlement and the structural member 1, level it through the fine stone concrete filling layer 4 and the waterproof mortar leveling layer 6;

[0024] Step 2, connecting the fine stone concrete filling layer 4 and the structural member 1 through nails 5;

[0025] Step 3, arrange rubber waterstop 10 on the waterproof mortar leveling layer 6, which has the waterproof ability to adapt to the subsequent further uneven settlement;

[0026] Step 4: Fix the rubber waterstop 10 on the structural member 1 through the pressure plate 7 and the expansion bolt 8 .

[0027] Specifically, in the first step, the first polysulfide sealant 3 is applied between the fine stone concrete filling layer 4 , the waterpro...

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Abstract

The invention discloses an underground structure deformation joint leaking stoppage repairing method. The underground structure deformation joint leaking stoppage repairing method comprises the following steps that 1, leveling is conducted through a fine aggregate concrete filling layer and a waterproof mortar leveling layer at a position with a height difference between a deformation joint subjected to differential settlement and structural members; 2, the fine aggregate concrete filling layer is connected with the structural members through nails; and 3, a rubber waterstop is arranged on thewaterproof mortar leveling layer. According to the underground structure deformation joint leaking stoppage repairing method, the fine aggregate concrete filling layer is used for compensating the condition that structural members on the two sides of the deformation joint are uneven due to differential settlement, and then the waterproof mortar leveling layer is used for further leveling, so thata good mounting condition is provided for the externally bonded rubber waterstop; and a pressing plate and an expansion bolt which are in contact with a water body in a structure are made of stainless steel materials, the service life of the structure is prolonged, and therefore the underground structure deformation joint leaking stoppage repairing method has enough waterproof capacity and enoughservice life, meanwhile has the characteristics of being convenient and fast to construct, simple in material and the like, and has very high practicability.

Description

technical field [0001] The invention relates to the technical field of repairing deformation joints, in particular to a method for plugging and repairing deformation joints in underground structures. Background technique [0002] At present, the underground structure generally adopts cast-in-place reinforced concrete structure. According to relevant specifications and industry standards, if the cast-in-place reinforced concrete structure exceeds a certain size, or where there is a large difference in force change or a large change in geological conditions, it is necessary to adopt setting deformation. The measures of seams are used to solve the cracking caused by temperature difference stress and improve the ability of the structure itself to adapt to uneven settlement. At the same time, in order to avoid groundwater leakage, etc., supporting measures such as buried rubber waterstops are often installed in the deformation joints to increase the seepage path of groundwater an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/16E02D31/02E02D31/04
CPCE02D29/16E02D31/02E02D31/04
Inventor 吴绍珍
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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