Leakage drainage structure of waterproof curtain

Abstract

The invention provides a leakage drainage structure of a waterproof curtain. The structure is arranged on a foundation pit leaking part and a supporting structure to construct. The structure comprises a hole body arranged in the foundation pit leaking part, wherein a drainage pipe is arranged in the hole part and comprises a needle part section with a screw thread at the end part, an extended connection section and an end part section which are connected by a connection barrel through the screw thread; an inverted filtering water layer is arranged at the periphery of the needle part section; a plugging section is arranged at the periphery of the extended connection section and is used for plugging; a spherical valve is arranged on one side of the end part section and leaked water of the leaking part is discharged by the spherical valve. The leakage drainage structure has the effects that the structure is simple to operate, low in construction cost and rapid in construction speed, and can be used for discharging a water body of the leaking part of the waterproof curtain in time, reducing the pressure of water and soil of the leaking part, excluding dangerous cases as soon as possible and guaranteeing the safety of a foundation pit; meanwhile, the drainage pipe can be repeatedly turned over and used so that the energy-saving effect is realized.

Description

technical field [0001] The water-stop curtain of the present invention is a common water-stop structure in deep foundation pit engineering. When the water-stop curtain has serious leakage and no structural damage is caused, drainage combined with sealing measures are generally adopted. In particular, it relates to a leakage and drainage structure of a water-stop curtain, which can quickly remove the water body at the leakage part of the foundation pit, eliminate danger at the first time, and ensure the safety of the foundation pit. Background technique [0002] At present, urban construction is developing rapidly, and deep foundation pit projects are increasing day by day. Deep cement mixing piles and high-pressure jet grouting piles are often used as water-stop curtains in foundation pit engineering. Leakage of foundation pits is also relatively common, and engineering accidents caused by leakage of foundation pits are not uncommon across the country. The causes of founda...

AI Technical Summary

Problems solved by technology

The method of injecting foam, water-tight plugging, and filling expansion materials is easy to operate and low in cost, but it cannot effectively eliminate the water existing in the leakage site, and cannot effectively and completely solve the leakage problem, resulting in increased water and soil pressure, and at the same time endangering the foundation. pit safety

Images