RU1787181C - Method of erecting ash-disposal area on frozen ground - Google Patents

Abstract

Usage: in hydraulic engineering. SUMMARY OF THE INVENTION: A bulk ash and slag dump is divided into two sections 1 and 2, conventionally divided by border 3, the dimensions of which are determined by the planned volume of ash and slag material storage, as well as the thermophysical substantiation of its construction technology, taking into account the intensity of ash and slag material supply by road. In winter, a layer 6 of thickness h is laid on the frozen foundation of section 1 of the first portion of the material delivered to the dump, which is sealed with soil-sealing mechanisms in the area. Next, the entire section 1 is uniformly filled. Then, the next layer 6 is laid evenly over the area of section 1. A necessary condition for creating a frozen-type blade is to freeze the previous layer of material 8 in height until the next layer 6 is filled in. In the summer, the material layer 6 uniformly over the entire area of section 2. During this period, a certain number of layers should be laid which, in height, together with the depth of seasonal thawing, do not exceed the depth of seasonal freezing. Thus, the required number of stacked layers per season determines the area of sections 1 and 2, taking into account the rate of ash and slag material exit from the station. 4 ill. s c VI oo 4 00

Description

The invention relates to the field of construction and relates to methods for erecting structures in northern conditions, for example ash and slag dumps of thermal power plants, dams of soil materials and others, in which they are erected to full height year-round by road, rail or conveyor transport.

The purpose of the invention is to preserve an unfailing way with & curing the frozen base of the litter of the pr tree and creating a bulk ash and slag dump of the frozen type.

 Figures 1 and 2 respectively show a transverse section of the body of the bulk ash and ash dump and a plan view, where 1 and 2 are the sections of the dump, 3 is the interface of the sections, 4 is the fastening of the slopes, 5 is the area where the portion of moistened ash and slag is placed material. The arrows indicate the sequence of filling sections of ash and slag material.

In Figs. 3 and 4, flow charts for the construction of a frozen blade with dry storage for ash and slag material of two periods of the year are shown: in Fig. 3 - with positive air temperatures, in Fig. 4 - with negative air temperatures, where 6 is the layer freshly laid ash and slag material, 7-layer of ash and slag material in the thawed state, 8 - the same, in the frozen state, 9 - freeze-thaw boundary.

A bulk ash and slag dump on a frozen base consists of two sections 1 and 2, separated by a boundary 3. The fastening of 4 slopes of the dump is made of turf, Section 1 is filled with ash and slag material in winter time on a frozen basis. Section 2 is filled during the year with a positive air temperature. The sizes of these sections are assigned in accordance with the depth of seasonal freezing of ash and slag material. The sections are filled uniformly along the height of the blade, while maintaining the frozen state of the base soil.

Claims (2)

SUMMARY OF THE INVENTION A method for erecting a bulk ash and slag dump on a frozen base, including layer-by-layer dumping of moist ash and slag material, characterized in that, in order to maintain the bearing capacity of the frozen base, it is constructed when creating a bulk ash and slag of frozen type, increasing the static and filtration stability, improving the environment and reducing the footprint, ash dump The construction of the ash dump involves filling sections in order to ensure uniform growth of layers along the height. The method is carried out as follows. In winter, a layer 6 with a thickness h of the first portion of ash and slag material delivered to a dump is laid on the frozen base of section 1, which is leveled and compacted with soil compacting mechanisms in area 5. Next, the entire section 1 is uniformly filled. Then, they begin laying of the next layer 6 uniformly over the area of section 1. A necessary condition for creating a frozen-type dump is to freeze the previous highest layer of ash and slag material at the time of filling the subsequent layer 6. In the summer, they begin to lay layer 6 of ash and slag material evenly over the entire area of the section 2. For this period, lay down the number of layers of 7 p, which in height (n-h) together with the depth of seasonal thawing do not exceed the depth of seasonal freezing. Thus, the required number of stacked layers n per season determines the area of sections 1 and 2, taking into account the intensity of ash and slag material exit from the station. Such a sequence of year-round operation of a two-section ash and ash dump will allow to keep the base soil in a frozen state, to create a monolithic frozen construction of a bulk dump, as well as to ensure trouble-free operation of thermal power plants. The good strength characteristics of the frozen base of the ash and slag dump allows such a structure to be raised to the highest possible height for industrial reasons. With a greater slope steepness than for the case of a weak thawed base. divided into two sections, filling is carried out alternately on a pre-frozen base of two sections of the corresponding air temperature with positive and negative temperatures, followed by freezing of thawed layers, and the number of layers of the material to be deposited during the period of positive air temperatures in height along with the seasonal thawing depth They do not exceed the depth of seasonal freezing.