CS245853B1 - The process of building the underground wall - Google Patents

Abstract

The proposed underground wall construction procedure allows for increased utilization of the self-hardening suspension and the excavated gravel-sand excavation from the underground wall while significantly reducing the need to transport the excavation. The stated purpose is achieved in such a way that the excavated gravel-sand excavation from the underground wall is homogenized with the self-hardening suspension in a suitable device and returned to the previously excavated section of the underground wall trench.

Description

BACKGROUND OF THE INVENTION The present invention relates to the construction and sealing of subsoil walls using a self-curing suspension.

The hitherto method of constructing sealing ground walls by means of a self-curing suspension is characterized in that the extracted material discharged by the scratching device from the scratch is considered unsuitable and is transported to landfills of unsuitable material, or is deposited along an excavated groove of the underground wall. A disadvantage of such a process is the fact that, together with the excavation, a portion of the self-curing suspension which is contained in the hollow material at a perceral content of about 10-40% by volume is also lost. Another disadvantage of such a procedure is that the washing process is braked by the removal of the excavation, the landfill distant ordinary miles away, or the disadvantageous depositing of the excavation has led the grooves in terms of work safety and also in view of the possibility of reducing the stability of the underground wall from the entrance attracted by excavated material.

The construction of an underground wall using a self-curing suspension as a sealant which, after hardening, usually has substantial lower modulus of deformation, can be used in some applications. of the underground wall is disadvantageous because of the unequal planting of the hard soil and the underground wall.

The aforementioned drawbacks are eliminated by the construction of ground walls according to the invention, the principle of which is that the gravel pit excavated by the self-hardening suspension is returned after the homogenization to sleep in the excavated section, whereby the self-hardening suspension displaced by the deposition volume is pumped out and used in subsequent construction of further underground wall sections.

By depositing the homogenized excavation into the excavated groove, a considerable reduction in the consumption of the self-curing suspension is achieved, the need to weigh out the effluent and to achieve approximately equal modulus of deformation of the sealing material of the ground wall and the surrounding soil is reduced or reduced while maintaining the impermeable properties of the sealant. Example of use:

A 15 m long section of the underground wall with a self-curing suspension is avoided. The excavation of this section is taken to a landfill, eventually deposited next to the groove. In this way, the necessary advance of the hitching device is created before the backfilling of the hollow section is not possible, which can now be carried out independently of the hatching process. In the process of building further. the underground wall, the excavation is placed in a pre-prepared facility where it is homogenized. From there, a pre-excavated section of the underground wall is gradually siphoned through the excavation so as to maintain the necessary advance of the moving device, the volume of the self-hardening suspension being pumped out is pumped into the just driven section of the underground wall.

Claims (1)

The process of building an underground wall using a self-hardening suspension characterized in that the broad-sanded ditch wetted in the process of self-hardening with the hardening suspension returned to the heating after homogenization ..... and the extruded volume of the self-hardening suspension is used in the construction of other sections of the underground wall.