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一、概述秦皇岛两台10万m~3油罐是我国首次从日本引进技术改造的国内最大容量的金属油罐。1~#罐建造在山包开挖而成的地基上,2~#罐地基则是利用原2万m~3非金属半地下式油罐拆除后保留下来的罐底板扩大而成。该工程地形复杂,工程量大,主要工程量见表1。工程从1985年3月初开工到8月初完工,总工期150天,其中罐基础施工70天。由于在施工中采取了一系列有效措施,基础混凝土强度、砂垫层密实度按规范要求试验,全部达到质量要求。安装工程于1987年6月完工后,经大罐装水试验及沉降观测,结果完全达到要求。罐基础外观质量见表2。该工程的土石方工程施工情况刊于《石油工程建设》1986年第6期。下面仅介绍罐基础施工的主要情况。
I. Overview Two 100,000 m 3 oil tanks in Qinhuangdao are the largest domestic metal oil tanks for the first time that China has introduced technological transformation from Japan. The 1~# tanks are built on the excavated foundations of the hills, and the 2~# tank foundations are made by expanding the floor of tanks retained after the original 20,000m3 non-metallic semi-underground tanks were removed. The terrain of the project is complex and the amount of work is large. The main project quantities are shown in Table 1. The project was completed from early March 1985 to early August. The total construction period is 150 days, of which the tank foundation construction is 70 days. As a series of effective measures have been taken during construction, the strength of the foundation concrete and the density of the sand cushion have been tested according to the specifications, and all have met the quality requirements. After the installation project was completed in June 1987, the results of the large tank water test and settlement observation fully met the requirements. Tank foundation appearance quality is shown in Table 2. The construction of the earth and stone works of this project was published in the 6th issue of Petroleum Engineering Construction, 1986. The following only describes the main conditions of tank foundation construction.