20秋11月大工《土木工程实验(一)》实验报告及要求

所属学校:大连理工大学 科目:土木工程实验(一) 2020-12-08 12:44:28 大工 土木工程 报告
姓    名:                    
报名编号:                    
学习中心:                    
层    次:                      (高起专或专升本)
专    业:                     实验一:水泥实验
一、实验目的:                                                          
                                                                    
                                                                    
二、实验内容:
第1部分:水泥标准稠度用水量、凝结时间测定
实验仪器、设备:                                                    
                                                                    
1、水泥标准稠度用水量
(1)实验原理:                                                     
                                                                    
(2)实验数据及结果
不变水量法
用水量W(mL)       
试锥沉入值S(mm)       
标稠用水量P(%)
P= 33.4—0.185S       
2、水泥凝结时间测定
(1)实验原理:                                                     
                                                                    
(2)实验数据及结果
凝结
时间        初凝时间:             min
        终凝时间:             min
第2部分:水泥胶砂强度检验
1、实验依据:                                                     
                                                                     2、实验仪器、设备:                                               
                                                                     3、实验数据及结果
材料用量
(g)        水泥        标准砂        水
                       
龄期        28天
抗折强度        试件编号        1        2        3
        强度,MPa                       
        代表值,MPa
(计算方法见PPT)       
抗压强度        试件编号        1        2        3        4        5        6
        破坏荷载(Fi),kN                                               
        强度(Ri),MPa
(Ri=Fi×1000/A,其中A=1600mm2)                                               
        代表值,MPa
(计算方法见PPT)        水泥检验项目合格性评定:
(1)水泥的凝结时间是否符合要求,是如何判定的?
                                                                    
                                                                    
(2)水泥胶砂强度是否符合要求,是如何判定的?
                                                                    
                                                                      
实验二:土的压缩试验
一、实验目的:                                                     
                                                                    
                                                                     二、实验原理:
1、计算公式
(1)试样初始孔隙比:                 
(2)各级压力下试样固结变形稳定后的孔隙比:                 
(3)土的压缩系数:                         
(4)土的压缩模量:                                    三、实验内容:
1、实验仪器、设备:                                               
                                                                     2、实验数据及结果
施加压力等级kPa        施加压力后百分表读数
50       
100       
200       
400       
3、实验成果整理(见下页表格)      
试样初始高度H0= 20mm                试样天然重度γ=18.7kN/m3                   
土粒比重Gs=2.7                       试样天然含水率w0=25%
试样初始孔隙比e0=                    百分表初始读数h0=
试验所加的各级压力(kPa)p        50        100        200        400
各级荷载下固结变形稳定后百分表读数(mm)hi                               
总变形量(mm)
=h0 -hi
                       
仪器变形量(mm)
Δi         0.122        0.220        0.275        0.357
校正后土样变形量(mm)
Δhi=  -Δi=h0 -hi -Δi                               
各级荷载下的孔隙比
ei                               
土的压缩系数(MPa-1)
a1-2       
土的压缩模量(MPa)
Es1-2       
四、实验结果分析与判定:
(1)根据实验结果,该土的压缩类别如何?
                                                                    
                                                                    
实验三:水准测量实验
一、实验目的:
                                                                    
                                                                    
                                                                     二、实验原理:
                                                                    
                                                                    
                                                                     三、实验内容:
1、实验仪器、工具:                                                 
                                                                    
                                                                     2、水准仪的操作程序:                                               
                                                                    
                                                                     3、实验数据及结果(见下页表格)      
水准测量记录表
测站
编号        点号        后尺        下丝        前尺        下丝        标尺读数        后尺—前尺        高差
中数        高差
改正        高程
                        上丝                上丝                                      
                后视距        前视距        后尺        前尺                               
                视距差        ∑d                                               
1                                                                        13.650
                                                                       
                                1.234        0.960        0.274                       
                                                                       
2                                                                       
                                                                       
                                0.823        1.442        -0.619                       
                                                                       
3                                                                       
                                                                       
                                1.638        1.166        0.472                       
                                                                       
4                                                                       
                                                                       
                                1.135        1.257        -0.122                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                        实验四:全站仪的认识与使用
一、全站仪的特点:
(1)                                                              
                                                                    
(2)                                                              
                                                                    
(3)                                                              
                                                                    
(4)                                                              
                                                                     二、全站仪的构造:
                                                                    
                                                                    
                                                                     三、全站仪的安装:
                                                                    
                                                                    
                                                                    
                                                                     四、全站仪的测量结果:
测量项目        测试结果
角度测量       
距离测量       
坐标测量       
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