摘要
吐哈油田位于强盐渍土地区，盐渍土浸水后使地层产生溶陷。因此，在这样地区建设油田地面工程中的建（构）筑物的基础，必须经过特殊处理。根据盐渍土的特性及实际情况，采用换土法并结合加深基础垫层等方法对地基进行处理是经济可靠和简便易行的。盐渍土中还含有0．2％～1．07％的硫酸钠，其腐蚀性能评价为强盐渍土区具有中～强腐蚀性；中～弱盐渍土区具有弱腐蚀性。所以必须对建（构）筑物及设备基础，进行防腐处理。特别值得注意的是盐渍土地基对建（构）筑物的危害是由于水产生的次生灾害，因此对建（构）筑物的地面、台阶、坡道和散水等与水有接触的部位也必须做好防水处理。
Tuha oilfield is located on strong salt-affected area and if the salt-affected soil is soaked by water the ground will be fallen down by dissolve. The foundations of buildings and structures in oilfield surface engineering in this area should be especially treated.Based on the character and practical status of salt-affected soil, it is economical, reliable, simple and fesible to adopt changing soil method and to deepen foundation mat to treat the foundation. Salt-affected soll contalns 0. 2 % ~ 1. 07 % sodium sulphate and it has medium-strong corrosiveness in strong salt-affected soil area, and it has weak corrosiveness in medium-weak salt-affected soil area. Therefore it is necessary to make the foundation of buildings, constructions and equipment anticorrosion treatment. It is notable that the harm to buildings and constructions caused by foundations of salt-affected soil is the secondary calamity caused by water. Therefore,places of buildings and constructions which contact with water such as ground,workshop slope entrance and apron etc should be treated by wafter-proof.
出处
《油气田地面工程》
1995年第3期51-52,共2页
Oil-Gas Field Surface Engineering
关键词
建筑物
地基处理
盐渍土
油田
building/foundation/basis/salt-affected soil/corrosion
