地址勘测资料翻译-中英对照
2004年，核二院在探槽T42、T43之间布置了探槽TC（见图3-8），发现了宽7m左右的特殊地质体；2006年，为了追索4＃核岛场地特殊地质体向南东方向的延伸，又开挖了两条探槽TC1和TC2（见图3-8），这两条探槽中均发现了特殊地质体。
2008年，核工业工程勘察院又在3＃、4＃核岛之间开挖了3条探槽（见图3-1、图3-8），以查明3＃、4＃核岛场地内特殊地质体的关系。这3条探槽中均发现了特殊地质体。
综合分析扩建工程特殊地质体专题勘察、特殊地质体评价研究资料、特殊地质体空间分布和动力特征勘察成果，特殊地质体从4＃核岛北部通过（见图3-8），斜穿应急柴油发电机厂房（UBS）厂房地基东北角，尖灭于UBS厂房外东北侧，总体走向NW305～325°，地表揭露长度约80m，最宽处约9m。
3.1.3在人工边坡上的分布
在扩建工程地质测绘和特殊地质评价研究评价工作的野外地质调查时，发现当时的人工边坡多处揭露有特殊地质体（图3-9），总体走向NW315°～335°，在不同的高度上宽度不一，揭露的最大宽度达16m，105m平台陡坎边缘揭露的宽度只有50cm（照片3－2，取4＃测年样）。
2007年上半年开始，江苏核电有限公司对人工边坡按最新设计重新开挖，与之前的边坡相比，形态上有了非常大的改变。由于人工边坡的重新开挖，特殊地质体露出了比较清楚的边界（照片3－3、3－4），出露长度约200m，最大宽度约30m展布方向约310°（图3－10），向南东尖灭于64m平台上。
图3-9 原人工边坡特殊地质体分布图
图3-10 现人工边坡特殊地质体分布图
3.1.4总体展布特征
从3＃核岛、4＃核岛及人工边坡特殊地质体的平面位置来看（图3-11、3-12），特殊地质体不是连续分布的，也不在一条延长线上，而是在平面上呈左旋羽列式排列。单个特殊地质体的走向为NW-SE方向，与田湾大型节理带夹角10°～30°。
根据现场调查，在田湾大型节理带的东北面，基岩裸露，陡崖发育，特殊地质体的北西延伸方向上，岩体完整，没有发现破碎带；通过航片解译发现，田湾大型节理带东北面没有与特殊地质体发现相同的线性构造，只发育与田湾大型节理带平行的节理。由于田湾大型节理带的存在，限制了特殊地质体向北西方向的延伸。从3、4号核岛之间开挖的探槽来看，特殊地质体向北西延伸中止于田湾大型节理带之前，未与之相交（见图3-11）。
3.2特殊地质体的竖向分布
3＃核岛场地的探槽、减震沟和基坑坑壁均可见到特殊地质体与围岩的接触界面为陡倾角，均大于80°，近于直立，倾向NE或SW。在3＃核岛特殊地质体向南东方向延伸经过的2＃循环冷却水隧道（UPN）、2＃核服务厂房（21UKC）基坑、2＃常规岛基坑，亦可见特殊地质体向北东和南西两个方向倾，总体倾向北东，陡倾角。
在4＃核岛场地2004和2006年所布置的10条探槽中，有6条发现了特殊地质体，所揭露的特殊地质体产状均呈陡倾角，倾向北东和南西，多数倾向南西。
扩建工程详勘214－1钻孔位于特殊地质体的西南侧，距特殊地质体边界约3.5m，孔深56.00m，该孔未发现特殊地质体，表明特殊地质体即使向南西倾斜，倾角也不会小于86°。
扩建工程特殊地质体专题勘察220－2钻孔位于特殊地质体中部，距特殊地质体两侧边界5～5.7m。该孔孔深55.6m，没有穿透特殊地质体，表明特殊地质体即使向某一侧倾斜，倾角也不会小于84°。
图3-11 核岛场地标高7.60m特殊地质体分布图
图3-12 特殊地质体平面展布图
特殊地质体空间分布和动力特征勘察共完成了5个斜孔，其中有2个斜孔XK3、XK4发现了特殊地质体，这两个钻孔所发现的特殊地质体的水平投影均没有超出特殊地质体的地面边界（见图1-1）。
综上所述，特殊地质体的产状近于直立。特殊地质体向南西和北东两个相反的方向倾斜本身就是产状近于直立的一种体现。
In 2004, No.2 Nuclear Institute deployed trench TC between T42 and T43 (See Fig.3-8), and found a special geologic body of about 7.0m in width; 1. In order to trace the extension of the special geologic body to the southeast on No.4 NI, two more trenches - TC1 and TC2, were dug in 2006 (See Fig.3-8). Special geologic body was found in both trenches.
1. In 2008, the Geotechnical Investigation and Surveying Institute of Nuclear Industry excavated three more trenches between No.3 NI and No.4 NI (see Figs. 3-1 and 3-8), in order to find out the relationship of special geologic bodies within No.3 NI and No. 4 NI. Special geologic bodies were found in all the three trenches.
1. Through comprehensive analysis of the subject reconnaissance of special geologic bodies of the Extension Project, the evaluation and research data of the special geologic bodies and the survey achievements of spatial distribution and dynamic features of the special geologic bodies, it is found that the special geologic body passes through the northern part of No. 4 NI (See Fig.3-8), crossing slantly the northeast corner of the foundation of emergency diesel generator building (UBS), and pinching out at the northeast side of UBS building; its general direction is NW, at 305-325°; the length of exposed surface is about 80m, with maximum width of 9m.
3.1.3 Distribution on Artificial Slope
1. In geologic mapping of extension project and field geologic investigation for evaluation and research of special geologic body, it was found that special geologic body was exposed in a number of places on artificial slope (Fig.3-9); the general direction was NW315°-335°,and the width varied at different elevations. The maximum width exposed was 16m; the width exposed at the edge of steep ridge of the 105m platform was only 50m (Pic. 3-2; No.4 NI was sampled for age dating).
1. From the first half of 2007, the Jiangsu Nuclear Power Corp. began to re-excavate the artificial slope according to the latest design; the slope changed a great deal in shape compared with what it was before.1. Due to re-excavation of artificial slope, the special geologic body showed more distinct boundaries (Pics. 3-3, 3-4), about 200m in exposed length, about 30m of maximum width, spreading direction at about 310°(Fig.3-10), and pinched out to SE on the platform of 64m.
Figure 3-9 The distribution of special geological body at artificial slope in the past
Figure 3-10 the distribution of special geological body at artificial slope now
3.1.4 General Distribution Characteristics
1. From the plan position of special geologic body in artificial slope on No.3 NI and No.4 NI (Figs.3-11, 3-12), we can see that the special geologic body is not in continuous distribution and not in the same extension line, but in levorotatory feather arrangement on the plan. The trend of individual special geologic body was in NW-SE, with an included angle of 10°-30°with large joint of Tianwan.
According to the field survey, in the northeast of the large joint in Tianwan, the bed rock is exposed, and the klint is developed. On the northwest of the special geological body’s extension direction, the rock mass is integrated and there is no fractural zone. From the air photo we could see, there is no same structure in the northeast of the large joint in Tianwan as the special geological body, only section parallels with the special geological body exist. As there are large joint here, the special geological body is restricted to northwest. We conjecture from the trial trenches between 3# and 4# nuclear island, which the special geological body doesn’t intersect with the Tianwan large joint before its ending to the northwest extension.
3.2 Vertical Distribution of Special Geologic Bodies
The contact surface between the surrounding rock and the special geological body is visible in the trial trenches in 3# nuclear island area, damping ditch and the wall of the foundation pit; and the contact surface is steep dip angle, it is more than 80°and nearly vertical, the direction is to NE or SW. In 3# nuclear island, the special geological body extend to southeast to go through.2# circulating cooling water tunnel (UPN), the foundation pit of 2 nuclear service plant (21UKC), foundation pit of 2# conventional island; it also could be seen that the special geological body incline to northeast and southwest, but the general direction is to the northeast, the dip angle is very steep.
In the 10 trial trenches at 4# nuclear area deployed in 2004 and 2006, 6 of them are found with special geological body. The special geological body disclosed is presented to be steep dip angle, and the direction is to northeast and southwest, most is to southwest.
The 214-1 drill hole in the exploration of the extension project is located at southwest side of the special geological body, it is about 3.5m from the boundary of the special geological body, and the depth of the hole is 56m. No special geological body is found in this hole, this indicates that even the special geological body dips to southwest, the dip angle is no less than 86°.
The 220-2 drill hole is the special reconnaissance of the extension project, it is located at the middle of the special geological body, and its distance to the boundary of the special geological body is 5 to 5.7m. The hole is 55.6m in depth, but it does not penetrate the special geological body, this indicates that even the special geological body dips to some side, the dip angle is no less than 84°.
Figure 3-11 the distribution of the special geological body at the elevation of 7.6m in nuclear island area
Figure 3-12 the plane distribution of the special geological body
Spatial distribution of the special geological body and dynamics characteristics exploration of total five incline holes are completed, including two inclined holes of XK3 and XK4, which find special geological bodies. The horizontal projections of the special geological bodies found in these two holes are not beyond the boundary of the special geological ground (see figure 1-1).
Taken together, the occurrence of special geological body is nearly vertical. The inclination of special geological bodies to two opposite direction southwest and northeast is itself a reflection of nearly vertical.
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