1∶50 000 Engineering Geological Survey and Geotechnical Test Dataset of the Doumen Map-Sheet in the Guangdong-Hong Kong-Macao Greater Bay Area
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摘要:
本数据集依托2017年中国地质调查局“粤港澳湾区1∶50 000环境地质调查”项目，在充分收集以往地质资料的基础上，开展了粤港澳大湾区珠江口西岸的斗门镇幅1∶50 000工程地质调查工作，编制了1∶50 000工程地质图及说明书，并依据此次调查及采取的样品进行测试获取的数据建立了本数据集。本数据集包含调查与实验测试两大类10种数据类型，其中遥感野外检查验证数据53条，基础调查数据168条，野外地质综合调查数据22条，工程地质调查数据77条，地质灾害调查数据23条，钻孔基本情况数据13条，原位试验成果数据583条，岩石样品试验数据36条，土工试验数据130条，野外照片数据669幅，共计1 774条数据。本数据集对查清粤港澳大湾区珠江口西岸的工程地质条件，评价软土地面沉降、崩塌滑坡不稳定性斜坡等地质灾害具有数据支撑意义。
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关键词:
- 粤港澳湾区 /
- 斗门镇幅 /
- 工程地质调查 /
- 岩土样品试验 /
- 1∶50 000数据集
Abstract:This dataset was created as a result of the " Environmental Geological Survey (1∶50 000) in the Guangdong-Hong Kong-Macao Greater Bay Area” project of the China Geological Survey in 2017. Based on previously collected geological information, we have carried out a 1∶50 000 engineering geological survey in Doumen on the west bank of the Pearl River Estuary in the Guangdong-Hong Kong-Macao Greater Bay Area and compiled the 1∶50 000 engineering geological map and specifications. This dataset was established based on the survey and analytical data of the samples. The dataset has 10 types of data in two categories: survey data and experimental test data, including 168 series of basic survey data, 53 series of data from field verification and remote sensing interpretation, 22 series of data from the integrated geological field survey, 77 series of data from the engineering geological survey, 23 series of data from the geological hazard survey, 13 series of data on the basic information of boreholes, 583 series of data from in-situ test results, 36 series of data from rock sample tests, 130 series of data from geotechnical tests and 669 series of data from field pictures, in total 1 774 series of data. This dataset will help us understand the engineering geological conditions of the west bank of the Pearl River Estuary in the Guangdong-Hong Kong-Macao Greater Bay Area and evaluate geological hazards such as soft ground subsidence, collapse, landslide and unstable slopes.
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表 1 数据库(集)元数据简表
条目 描述 数据库(集)名称 粤港澳湾区1∶50 000环境地质调查斗门镇幅工程地质调查及岩土样品试验数据集 数据库(集)作者 曾敏，中国地质调查局武汉地质调查中心
赵信文，中国地质调查局武汉地质调查中心
喻望，中国地质调查局武汉地质调查中心
顾涛，中国地质调查局武汉地质调查中心数据时间范围 2017年 地理区域 粤港澳湾区1∶50 000斗门镇幅(F49E011021) 数据格式 Excel 数据量 168.16 KB 数据服务系统网址 http://dcc.cgs.gov.cn 基金项目 中国地质调查局地质调查项目“粤港澳湾区1∶50 000环境地质调查”(DD20160260) 语种 中文 数据库(集)组成 本数据集包含10种数据类型，其中遥感野外检查验证数据53条，基础调查数据168条，野外地质综合调查数据22条，工程地质调查数据77条，地质灾害调查数据23条，钻孔基本情况数据13条，原位试验成果数据583条，岩石样品试验数据36条，土工试验数据130条，野外照片数据669条，共计1 774条数据 
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表 2 数据库(集)数据类型—属性表对应关系
调查数据类型 属性表类型 遥感野外检查验证数据 遥感野外检查验证记录表 基础调查数据 调查点基础数据表 野外地质综合调查数据 野外地质综合调查表 工程地质调查数据 浅井记录表、岩石风化程度调查表 地质灾害调查数据 崩塌调查表、滑坡调查表、不稳定斜坡调查表、地面沉降调查表 钻孔基本情况数据 钻孔基本情况表 原位试验数据 工程地质静力触探试验记录表、工程地质十字板剪切试验记录表、工程地质标贯试验记录表 岩石样品试验数据 工程地质钻孔岩样试验表 土工试验数据 土工试验综合成果表 野外照片数据 野外照片数据表
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表 3 遥感野外检查验证记录表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1131147952214441401 野外编号 − 字符型 D1057 经度 ° 浮点型 113114795 纬度 ° 浮点型 22144414 地面高程 m 字符型 7 地理位置 − 字符型 广东省珠海市斗门区斗门镇深潭采石场 图幅编号 − 字符型 斗门镇幅F49E011021 解译正确性 − 字符型 正确 观测点遥感影像特征 − 字符型 图斑位于斗门镇斗门大道以东，温泉桥北东，形状不规则，颜色呈现浅灰褐色，表面纹理较光滑，可见挖痕和斑点，植被破损严重，无阴影覆盖 遥感解译类别 − 字符型 露天开挖场地 实际验证类别 − 字符型 露天开挖场地解译验证点 实地观测记录 − 字符型 实地验证调查点D1057，解译结果与实际情况大致相符 备注 − 字符型 KW06
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表 4 调查点基础数据表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1130507302217329001 野外编号 − 字符型 D2095 经度 ° 浮点型 113050730 纬度 ° 浮点型 22173290 X坐标 − 浮点型 19714928 Y坐标 − 浮点型 2467671 地面高程 m 字符型 8 地理位置 − 字符型 广东省江门市新会区古井镇奇乐村南峰旗 图幅编号 − 字符型 斗门镇幅F49E011021 调查点类型 − 字符型 岩石风化调查点
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表 5 野外地质综合调查表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1130556312218394801 野外编号 − 字符型 D2092 经度 ° 浮点型 113055631 纬度 ° 浮点型 22183948 地面高程 m 浮点型 20 地理位置 − 字符型 广东省江门市新会区古井镇奇乐村马山水库 调查点类型 − 字符型 综合地质调查点 取样情况 − 字符型 现场取水样进行测试 图幅编号 − 字符型 斗门镇幅F49E011021 地貌部位 − 字符型 丘陵岗地 天气状况 − 字符型 阵雨转阴 地层倾向 − 浮点型 − 地层倾角 − 浮点型 − 照片编号 − 字符型 1035–1039 点间关系 − 字符型 点间多为低丘岗地地貌，山林遍布，植被茂密，环境较好 地貌与地质 − 字符型 点处为低丘岗地地貌，自然坡度约为15°～20°，地势稍有起伏，相对高差约为2～6 m，主要岩性为燕山期侏罗系(J31nγ )灰白、肉红中粗粒斑状黑云母二长花岗岩，中粗粒斑状结构，块状构造，强烈风化，顶部为全风化花岗岩，厚度约0～2 m，未见明显构造迹象 水文地质 − 字符型 周边多为全风化-强风化花岗岩，顶部多为全风化花岗岩，厚度约为0～2 m，为松散孔隙水，水量较大，水质一般，其下为强风化花岗岩，可见原岩结构，为风化网状裂隙水，水量较大，水质较好，经大气降水补给，地面径流及面流江入水库，排泄至下游 环境地质 − 字符型 因抽水作业，水位下降较大，水库库岸可见多处不稳定岸坡，极易发生垮塌和崩岸，另水库的下游即北西侧，二级水库及下游山塘都改为养殖场，农药化肥等农业污染可见 工程地质 − 字符型 点处周边顶部为全风化花岗岩，松散土状，厚约0～2 m，下部为强风化花岗岩，可见原岩结构，经过现场回弹仪测量抗压强度为12 MPa 访问及沿途 − 字符型 沿途访问马山水库管理站，水库堤坝曾经溃坝，后来重修，现用作古井镇饮用水源，供水量较大，水位较低 人工地质剖面示意图 − 长二进制数据 (图片) 调查点平面位置示意图 − 长二进制数据 (图片) 备注 − 字符型 无； 项目名称 − 字符型 粤港澳湾区1∶50 000环境地质调查 调查单位 − 字符型 中国地质调查局武汉地质调查中心 调查日期 Y.M.D 字符型 2017-06-20 调查人 − 字符型 喻望，曾敏，高志斌 记录人 − 字符型 曾敏 审核人 − 字符型 赵信文
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表 6 浅井记录表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1130509972219449401 野外编号 − 字符型 D1160 经度 ° 浮点型 113050997 纬度 ° 浮点型 22194494 地面高程 m 浮点型 2 X坐标 − 浮点型 19714821 Y坐标 − 浮点型 2471780 图幅编号 − 字符型 斗门镇幅F49E011021 地理位置 − 字符型 广东省江门市新会区古井镇慈爱村老蔡围 天气 − 字符型 晴 气温 ℃ 浮点型 34 水文埋深 m 浮点型 0.4 地形地貌 − 字符型 三角洲平原地貌，地势较为平坦，相对高差约为1~3 m； 地质与环境地质 − 字符型 地表出露地层岩性为第四系全新统灯笼沙组(Q4dl)黏土、淤泥、粉细砂等 水文地质 − 字符型 点位于崖门水道附近点处为花木厂钻孔揭露地层岩性为第四系全新统桂州组黏土，淤泥，淤泥质，砂层，为软土层 生态与植被 − 字符型 − 取样情况 − 字符型 未取样 备注 − 字符型 D1160 浅井柱状剖面图 − 长二进制数据 (图片) 项目名称 − 字符型 粤港澳湾区1∶50 000环境地质调查 调查单位 − 字符型 中国地质调查局武汉地质调查中心 调查日期 Y.M.D 字符型 2017-06-17 调查人 − 字符型 顾涛 记录人 − 字符型 顾涛 审核人 − 字符型 赵信文
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表 7 地面沉降调查表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1130258842219497601 野外编号 − 字符型 D2111 地理位置 − 字符型 广东省江门市新会区崖门镇南昌村 经度 ° 浮点型 113025884 纬度 ° 浮点型 22194976 地面沉降名称 − 字符型 南昌村沉降 地面高程 m 浮点型 − 图幅编号 − 字符型 斗门镇幅F49E011021 城市名称 − 字符型 广东省江门市 天气 − 字符型 阵雨转多云 诱发因素 − 字符型 周边南昌村内房屋较多，2001年9月铺设的水泥路面以及小型河桥梁等荷载，以及村内民井提水成为软土沉降 地貌特征 − 字符型 为山前平原地貌，地形无起伏，相对高差约为0～1 m，崖门水道的两侧，主要地层岩性为第四系全新统(Qh)深灰色，灰黑色淤泥，淤泥质土，呈软塑状，工程地质力学性质较差 发展趋势 − 字符型 将持续沉降 造成危害状况 − 字符型 房屋墙体开裂，地面裂缝以及供电，供水管的局部挤压，断错，潜在威胁着本村300余户，500余人； 防治措施 − 字符型 局部墙体重新修补，部分砂浆已垮落，建议加强监测及房屋修补工作 平面示意图 − 长二进制数据 (图片) 剖面示意图 − 长二进制数据 (图片) 备注 − 字符型 矩形 项目名称 − 字符型 粤港澳湾区1∶50 000环境地质调查 调查单位 − 字符型 中国地质调查局武汉地质调查中心 照片编号 − 字符型 1142–1152 调查日期 Y.M.D 字符型 2017-06-24 调查人 − 字符型 喻望，曾敏，高志斌 记录人 − 字符型 曾敏 审核人 − 字符型 赵信文
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表 8 钻孔基本情况表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1131438202219194601 野外编号 − 字符型 DMZGCZK1 经度 ° 浮点型 113143820 纬度 ° 浮点型 22191946 X坐标 − 浮点型 19731176 Y坐标 − 浮点型 2471239 地理位置 − 字符型 广东省珠海市斗门区西江清荷农村(江珠高速公路东北) 地面高程 m 浮点型 1.193 图幅编号 − 字符型 斗门镇幅F49E011021 孔口高程 m 浮点型 1.193 钻机类型 − 字符型 XY-100 钻孔类型 − 字符型 工程地质钻孔 开孔日期 Y.M.D 字符型 2017.10.08 终孔日期 Y.M.D 字符型 2017.10.11 井斜 ° 浮点型 0 开孔直径 mm 浮点型 130 终孔直径 mm 浮点型 91 终孔深度 m 浮点型 74.15 含水层初见水位 m 浮点型 0.7 成井深度 m 浮点型 74.15 静止水位 m 浮点型 0.55 质量等级 − 字符型 良好
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表 9 工程地质标贯试验记录表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1131438202219194601 野外编号 − 字符型 DMZGCZK1 经度 ° 浮点型 113143820 纬度 ° 浮点型 22191946 X坐标 − 浮点型 19731176 Y坐标 − 浮点型 2471239 地理位置 − 字符型 广东省珠海市斗门区西江清荷农村(江珠高速公路东北) 地面高程 m 浮点型 1.193 图幅编号 − 字符型 斗门镇幅F49E011021 钻孔ID − 字符型 1 试验编号 − 字符型 1 杆长 m 浮点型 16.93 修正击数 − 浮点型 8.2 试验深度 m 浮点型 14.8 实测击数 − 浮点型 11 承载力基本值 MPa 浮点型 14.8 起始深度 m 浮点型 14.8 终止深度 m 浮点型 15.25
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表 10 工程地质钻孔岩样试验表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1131217612219437401 样品编号 − 字符型 DMZGCZK2-1 岩芯编号 − 字符型 DMGCZK02岩芯 岩性 − 字符型 砂岩 测试编码 − 字符型 1452 饱和抗压强度 MPa 浮点型 43.3
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表 11 土工试验综合成果表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1131438202219194601 样品编号 − 字符型 DMZGCZK1-1 土样深度 m 浮点型 3.40−3.60 室内命名 − 字符型 淤泥质土 含水率 % 浮点型 45.3 比重 − 浮点型 2.64 湿密度 g/cm3 浮点型 1.74 干密度 g/cm3 浮点型 1.2 孔隙比 − 浮点型 1.2 饱和度 % 浮点型 99.3 液限 % 浮点型 43.9 塑限 % 浮点型 24.6 塑性指数 − 浮点型 19.3 液性指数 − 浮点型 1.07 凝聚力 kPa 浮点型 7.8 内摩擦角 ° 浮点型 6 压缩系数 − 浮点型 0.87 压缩模量 − 浮点型 2.53 测试编码 − 字符型 委0011755(2016)0942
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表 12 野外照片数据表
字段名称 量纲 数据类型 实例 统一编号 − 字符型 1130509972219449401 拍照时间 Y.M.D 字符型 2017-06-17 照片种类 − 字符型 彩色 拍照人 − 字符型 顾涛 照片类型 − 字符型 钻孔基本情况表 照片 − 长二进制数据 (图片) 照片说明 − 字符型 钻孔基本情况表D1160 拍照参数 − 字符型 自动 地质现象描述 − 字符型 点位于崖门水道附近点处为花木厂钻孔揭露地层岩性为第四系全新统桂州组黏土，淤泥，淤泥质，砂层，为软土层
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Table 1. Metadata Table of Database (Dataset)
Items Description Database (dataset) name 1∶50 000 Engineering Geological Survey and Geotechnical Test Dataset of the Doumen Map-Sheet in the Guangdong-Hong Kong-Macao Greater Bay Area Database (dataset) authors Zeng Min, Wuhan Center, China Geological Survey
Zhao Xinwen, Wuhan Center, China Geological Survey
Yu Wang, Wuhan Center, China Geological Survey
Gu Tao, Wuhan Center, China Geological SurveyData acquisition time 2017 Geographic area 1∶50 000 Geological Map of the Doumen map-sheet in the Guangdong-Hong Kong-Macao Greater Bay Area (F49E011021) Data format Excel Data size 168.16 KB Data service system URL http://dcc.cgs.gov.cn Fund project China Geological Survey project titled “Environmental Geological Survey(1∶50 000) in the Guangdong-Hong Kong-Macao Greater Bay Area” (DD20160260) Language Chinese Database (dataset) composition The dataset has 10 types of data including 53 series of data from field verification and remote sensing interpretation, 168 series of basic survey data, 22 series of data from integrated geological field survey, 77 series of data from engineering geological survey, 23 series of data from geological hazard survey, 13 series of data on basic information of drilled boreholes, 583 series of data from results of in-situ tests, 36 series of data from rock sample tests, 130 series of data from geotechnical tests and 669 series of data from field pictures, in total 1 774 series of data.
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Table 2. Correspondence between the Data Types and Properties of the Database (Dataset)
Category of surveyed data Category of data attribute tables Data from field verification and remote sensing interpretation Table of field verification and remote sensing interpretation record Data from basic survey Table of basic data of survey points Data from integrated geological field survey Table of integrated geological field survey Data from engineering geological survey Table of shallow well record, Table of weathering degree of rocks survey Data from geological hazard survey Table of collapse survey, Table of landslide survey, Table of unstable slope survey, Table of ground subsidence survey Data on basic information of drilled boreholes Table of basic information of drilled boreholes Data from results of in-situ tests Table of SPT record of engineering geology, Table of CPT record of engineering geology, Table of VST record of engineering geology Data from rock sample tests Table of borehole rock sample tests of engineering geology Data from geotechnical tests Table of comprehensive results of geotechnical tests Data from field pictures Table of field pictures data
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Table 3. Table of Field Verification and Remote Sensing Interpretation Record
Field name Dimension Data category Real example Unified No. − Char 1131147952214441401 Field No. − Char D1057 Longitude ° Float 113114795 Latitude ° Float 22144414 Surface elevation m Char 7 Geographical location − Char Shentan Quarry, Doumen map-sheet, Doumen District, Zhuhai, Guangdong Province Map No. − Char Doumen Map-sheet F49E011021 Correctness of interpretation − Char Correct Characteristics of remote sensing image of observation points − Char The map spot is located to the east of Doumen Avenue in the Doumen map-sheet and to the north-east of the Wenquan Bridge, with an irregular shape, light grayish brown color, smooth surface texture, visible digging marks and spots and serious vegetation damage. It has no shadow coverage. Type of remote sensing interpretation − Char Open Pit Excavation Site Type of field verification − Char Interpretation and Verification Points of Open Pit Excavation Site Record of field observation − Char In in-situ verification and investigation point (D1057), the interpretation result is generally consistent with the actual situation. Remark − Char KW06
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Table 4. Table of Basic Data of Survey Points
Field name Dimension Data category Real example Unified No. − Char 1130507302217329001 Field No. − Char D2095 Longitude ° Float 113050730 Latitude ° Float 22173290 X-coordinate − Float 19714928 Y-coordinate − Float 2467671 Surface elevation m Char 8 Geographic location − Char Nanfeng Qi, Qile Village, Gujing Town, Xinhui District, Jiangmen, Guangdong Province Map No. − Char Doumen Map-sheet F49E011021 Type of survey point − Char Weathering rock survey point
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Table 5. Table of Integrated Geological Field Survey
Field name Dimension Data category Real example Unified No. − Char 1130556312218394801 Field No. − Char D2092 Longitude ° Float 113055631 Latitude ° Float 22183948 Surface elevation m Float 20 Geographical location − Char Mashan Reservoir, Qile, Gujing, Xinhui District, Jiangmen, Guangdong Province Type of survey point − Char Integrated Geological Field Survey Points Sampling − Char In-situ Water Sampling for Testing Map No. − Char Doumen Map-sheet F49E011021 Topographic feature − Char Hilly Land Weather − Char Shower Turned Cloudy Stratigraphic dip direction − Float − Formation dip − Float − Photo No. − Char 1035–1039 Relation between Points − Char From point to point, the landform is mainly low hills, with dense forest and vegetation and a good environment. Landform and geology − Char The landform of the surveyed point is low hills with a natural slope of about 15°–20°. The terrain is slightly undulating and the relative height difference is about 2 to 6 m. The main lithology is gray and white, flesh red medium-coarse grained porphyritic biotite monzogranite of the Yanshanian Jurassic (J31nγ) with medium-coarse grained porphyritic structure and block structure. It is strongly weathered. The top is fully weathered granite, with a thickness of about 0 to 2 m, showing no obvious structural signs. Hydrogeology − Char Most of the surrounding area is completely-strongly weathered granite and the top is mostly fully weathered granite, with a thickness of about 0 to 2 m. The water here belongs to loose pore water with large volume and average quality. The bottom is strongly weathered granite and the initial rock can be identified. The water there belongs to weathered crevice water with a large volume and good quality. Supplied by precipitation, it flows to the reservoir through surface runoff and surface flow, then the water is discharged downstream. Environmental geology − Char Due to the pumping operation, the water level has dropped significantly and many unstable bank slopes can be seen on the reservoir bank, which are prone to collapse. The area downstream of the reservoir (the northwest side of the reservoir), the secondary reservoir and the downstream mountain ponds had been converted to farms and agricultural pollution, such as pesticides and fertilizers, was found. Engineering geology − Char The surrounding area of the surveyed point is mostly completely decomposed granite with a loose soil shape and thickness of about 0 to 2 m. The lower part is strong-weathered granite and the initial rock can be identified. The compressive strength measured by the in-situ rebound tester is 12 MPa. Visit and en-route − Char Along the way, we visited the Mashan Reservoir Management Station. The dam of the reservoir once broke and was later rebuilt. It is now used as a drinking water source in Gujing. The water supply volume is large and the water level is relatively low. Artificial geological profile sketch (image) − Long (image) Survey point plan(image) − Long (image) Remark − Char N/A Project name − Char Environmental Geological Survey(1∶50 000) in the Guangdong-Hong Kong-Macao Greater Bay Area Investigation entity − Char Wuhan Centre of China Geological Survey Date of investigation Y.M.D Char June 20, 2017 Investigator − Char Yu Wang, Zeng Min, Gao Zhibin Recorder − Char Zeng Min Approver − Char Zhao Xinwen
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Table 6. Table of Shallow Well Record
Field name Dimension Data category Real example Unified No. − Char 1130509972219449401 Field No. − Char D1160 Longitude ° Float 113050997 Latitude ° Float 22194494 Surface elevation m Float 2 X-coordinate − Float 19714821 Y-coordinate − Float 2471780 Map No. − Char Doumen Map-sheet F49E011021 Geographical location − Char Laocaiwei, Ci’ai, Gujing, Xinhui District, Jiangmen, Guangdong Province Weather − Char Clear Temperature ℃ Float 34 Water level depth m Float 0.4 Topographic feature − Char The landform is a delta plain with relatively flat terrain and a relative height difference of about 1 to 3 m Geology and environmental geology − Char The lithology of the strata exposed on the surface is clay, silt, fine sand, etc. of Quaternary Holocene Stratigraphy Denglongsha Fm (Q4dl) Hydrogeology − Char The surveyed point was near the Yamen waterway and exposed by the Huamuchang borehole. Its stratum lithology is clay, silt, mucky and sand layer of the Quaternary Holocene Guizhou Formation, which belongs to the soft soil layer. Ecology and vegetation − Char − Sampling − Char Unsampled Remark − Char D1160 Column profile of shallow well − Long (image) Project name − Char Environmental Geological Survey (1∶50 000) in Guangdong-Hong Kong-Macao Greater Bay Area Investigation entity − Char Wuhan Centre of China Geological Survey Date of investigation Y.M.D Char June 17, 2017 Investigator − Char Gu Tao Recorder − Char Gu Tao Approver − Char Zhao Xinwen
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Table 7. Table of Ground Subsidence Survey
Field name Dimension Data category Real example Unified No. − Char 1130258842219497601 Field No. − Char D2111 Geographical location − Char Nanchang, Yamen, Xinhui District, Jiangmen, Guangdong Province Longitude ° Float 113025884 Latitude ° Float 22194976 Name of land subsidence − Char Nanchang Subsidence Surface elevation m Float − Map No. − Char Doumen Map-sheet F49E011021 Name of city − Char Jiangmen, Guangdong Province Weather − Char Shower turned cloudy Inducing factor − Char Around the surveyed point, there are many houses in Nanchang. Some loads including the cement pavement built in Sept. 2001, small bridges and the wells had become the inducing factors of soft soil subsidence. Topographic feature − Char The landform is a piedmont plain with flat terrain and a relative height difference of about 0 to 1 m. On both sides of the Yamen Waterway, the main stratum lithology is dark gray, grayish black silt, muddy soil of Quaternary Holocene (Qh) with soft plastics shape and poor engineering geomechanical properties. Development trend − Char Will continue to subside Hazard − Char The hazards were house wall cracks, ground cracks, the local compression and fault of the power supply and water supply pipes, which potentially threatened more than 500 people of over 300 households in the village. Prevention and treatment − Char Some walls had been repaired again and some mortar had collapsed. It is suggested to strengthen monitoring and house repair work. Plan sketch − Long (image) Profile sketch − Long (image) Remark − Char Rectangle Project name − Char Environmental Geological Survey(1∶50 000) in the Guangdong-Hong Kong-Macao Greater Bay Area Investigation entity − Char Wuhan Centre of China Geological Survey Photo No. − Char 1142–1152 Date of investigation Y.M.D Char June 24, 2017 Investigator − Char Yu Wang, Zeng Min, Gao Zhibin Recorder − Char Zeng Min Approver − Char Zhao Xinwen
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Table 8. Table of Basic Information of Drilled Boreholes
Field name Dimension Data category Real example Unified No. − Char 1131438202219194601 Field No. − Char DMZGCZK1 Longitude ° Float 113143820 Latitude ° Float 22191946 X-coordinate − Float 19731176 Y-coordinate − Float 2471239 Geographical location − Char Xijiang Qinghe (Northeast of the Jiangzhu Expressway), Doumen District, Zhuhai, Guangdong Province Surface elevation m Float 1.193 Map No. − Char Doumen Map-sheet F49E011021 Borehole head elevation m Float 1.193 Drill rig type − Char XY-100 Borehole type − Char Engineering Geological Borehole Open hole date Y.M.D Char October 8, 2017 End hole date Y.M.D Char October 11, 2017 Borehole deviation ° Float 0 Open hole caliber mm Float 130 End hole caliber mm Float 91 End hole depth m Float 74.15 Initial water level of aquifer m Float 0.7 Well depth m Float 74.15 Static water level m Float 0.55 Quality grade − Char Good
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Table 9. Table of SPT Record of Engineering Geology
Field name Dimension Data category Real example Unified No. − Char 1131438202219194601 Field No. − Char DMZGCZK1 Longitude ° Float 113143820 Latitude ° Float 22191946 X-coordinate − Float 19731176 Y-coordinate − Float 2471239 Geographical location − Char Xijiang Qinghe (Northeast of the Jiangzhu Expressway), Doumen District, Zhuhai, Guangdong Province Surface elevation m Float 1.193 Map No. − Char Doumen Map-sheet F49E011021 Borehole ID − Char 1 Test No. − Char 1 Rod length m Float 16.93 Corrected number of blows − Float 8.2 Test depth m Float 14.8 Measured number of blows − Float 11 Basic value of bearing capacity MPa Float 14.8 Starting depth m Float 14.8 End depth m Float 15.25
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Table 10. Table of Borehole Rock Sample Tests of Engineering Geology
Field name Dimension Data category Real example Unified No. − Char 1131217612219437401 Sample No. − Char DMZGCZK2-1 Core No. − Char DMGCZK02 Core Lithology − Char Sandstone Test code − Char 1 452 Saturated compressive strength MPa Float 43.3
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Table 11. Table of Comprehensive Results of Geotechnical Tests
Field name Dimension Data category Real example Unified No. − Char 1131438202219194601 Sample No. − Char DMZGCZK1-1 Depth of soil sample m Float 3.40–3.60 Lab name − Char Silty soil Moisture content % Float 45.3 Specific gravity − Float 2.64 Wet density g/cm3 Float 1.74 Dry density g/cm3 Float 1.2 Void ratio − Float 1.2 Saturation % Float 99.3 Liquid limit % Float 43.9 Plastic limit % Float 24.6 Plasticity index − Float 19.3 Liquidity index − Float 1.07 Cohesion kPa Float 7.8 Internal friction angle ° Float 6 Compressibility − Float 0.87 Compression modulus − Float 2.53 Test code − Char 0011755(2016)0942
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Table 12. Table of Field Pictures Data
Field name Dimension Data category Real example Unified No. − Char 1130509972219449401 Date of photography Y.M.D Char June 17, 2017 Picture type − Char Color Photographer − Char Gu Tao Type of photo content − Char Table of basic information of drilled boreholes Photo − Long (image) Description of photography − Char Table of basic information of drilled boreholes (D1160) Parameter − Char Auto Description of geological phenomenon − Char The surveyed point was near the Yamen waterway and exposed by the Huamuchang borehole. The stratum lithology is clay, silt, mucky and sand layer of the Quaternary Holocene Guizhou Formation, which belongs to the soft soil layer.
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