DZ_T0132-1994钻孔压水试验规程.pdf

DZ_T0132-1994钻孔压水试验规程.pdf

ID:48067418

大小:1.33 MB

页数:18页

时间:2019-10-24

DZ_T0132-1994钻孔压水试验规程.pdf_第1页
DZ_T0132-1994钻孔压水试验规程.pdf_第2页
DZ_T0132-1994钻孔压水试验规程.pdf_第3页
DZ_T0132-1994钻孔压水试验规程.pdf_第4页
DZ_T0132-1994钻孔压水试验规程.pdf_第5页
资源描述:

《DZ_T0132-1994钻孔压水试验规程.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库

1、uz中华人民共和国地质矿产行业标准Dz/T0132一94钻孔压水试验规程1994一10一31发布1995一07一01实施中华人民共和国地质矿产部发布目次砚、1主题内容与适用范围·········”·········“·········,·”························..·..·..·..·..·.⋯⋯(1J、2试验方法·“····························⋯⋯”··········”····································⋯⋯

2、(1少、.3试段长度······························“·“············”··········································⋯⋯(1产、,4试验压力···································”······”···································⋯⋯(1产、.5试验阶段···”·”·····⋯⋯二”······································

3、·“······················⋯⋯.(12、.6试验钻孔与试验用水··························································”······..·..·.⋯⋯(1矛、少7试验设备与仪表,····················································································⋯⋯(2、、8洗孔·······················⋯⋯,’···

4、··························································⋯⋯(2了、.9试段隔离”···········································,’··············⋯⋯二~”········⋯⋯(2尹、.10水位观测·‘二’··⋯’二’二‘.................................................................I............“(2产、n压

5、力与流量观测······⋯⋯.!’····.··.·······.·..····‘·····················一t’···.···⋯⋯(2,、卫12资料整理···········································································⋯⋯(2产、,附录A条文解释(参考件)..........................................................................

6、........(5夕中华人民共和国地质矿行业标准Dz/T0132-94钻孔压水试验规程主题内容与适用范围1.1本规程规定了为测定岩体的透水性而进行的钻孔压水试验基本方法。1.2本规程适用于工程勘察中的钻孔压水试验工作试验方法2.1本规程采用吕荣试验法作为基本的钻孔压水试验方法。2.2钻孔压水试验一般随钻孔的加深自上而下地分段进行。3试段长度3.JI试段长度一般为5m.3,L断层破碎带,岩溶洞穴等特殊孔段,应根据具体情况确定试段长度。3.C魂J相邻试段应互相衔接。4试验压力41压水试验采用三级压力(h

7、,p,p0,一般分别为。.3MPa,0.6MPa和1.OMPae42当试段埋深小于30m或岩体软弱破碎时,应适当降低试验压力。43试验压力按公式(1)计算P=pr十pz一PS*******"",··,.··········。···,.,,,·一(1)式中:P试验压力,MPa;pp—压力表指示压力,MPa;Pz—压力表中心至压力计算零线的水柱压力,MPa;Ps—管路压力损失,MPa,4.4压力计算零线的确定方法4.4.1当地下水位在试段以下时,压力计算零线为通过试段中点的水平线。4.4.2当地下水位在试

8、段以上时,压力计算零线为地下水位线。4.4-3当地下水位在试段以内时,压力计算零线为通过地下水位以上试段中点的水平线。4.5管路压力损失宜根据实测资料确定。试验阶段5.1压水试验一般分为五个阶段,其试验压力分别为P3,p-P3,Pz,PIe5.2当试段的透水率(e)小于1Lu时,可不进行降压阶段的试验试验钻孔与试验用水5.1压水试验钻孔的孔径一般为59-150mmo中华人民共和国地质矿产部1994一10一31批准1995一07一01实施IDz/T0132

当前文档最多预览五页,下载文档查看全文

此文档下载收益归作者所有

当前文档最多预览五页,下载文档查看全文
温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,天天文库负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。